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INTERSTATE COUNCIL FOR STANDARDIZATION. METROLOGY AND CERTIFICATION

INTERSTATE

STANDARD

GOST

22266-

2013

SULFATE-RESISTANT CEMENTS

Specifications

(EN 197-1:2011, NEQ) (EN 197-2:2000, NEQ)

Official edition

Foreword

The goals, basic principles and basic procedure for work on interstate standardization are established by GOST 1.0-92 “Interstate standardization system. Basic Provisions” and GOST 1.2-2009 “Interstate Standardization System. Interstate standards, rules and recommendations for interstate standardization. Rules for the development, adoption, application, updating and cancellation "

About the standard

1 DEVELOPED BY CEMISCON Firm LLC

2 INTRODUCED by the Technical Committee for Standardization TC 465 "Construction"

3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Minutes No. 44-2013 dated November 14, 2013)

4 This standard complies with the following European regional standards: EN 197-1:2011 Cement - Part 1: Composition, specification and conforming criteria for common cements: EN 197-2 :2000 Cement - Part 2: Conformity evaluation

5 By order of the Federal Agency for Technical Regulation and Metrology of June 11, 2014 No 653-st, the interstate standard GOST 22266-2013 was put into effect as the national standard of the Russian Federation from January 1, 2015.

Information about changes to this standard is published in the annual information index "National Standards", and the text of changes and amendments - in the monthly information index "National Standards". In case of revision (replacement) or cancellation of this standard, the corresponding notice will be published in the monthly information index "National Standards". The relevant information, notice and texts are also posted in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet

OSTandartinform. 2014

In the Russian Federation, this standard cannot be fully or partially reproduced. replicated and distributed as an official publication without the permission of the Federal Agency for Technical Regulation and Metrology

INTERSTATE STANDARD

SULFATE-RESISTANT CEMENTS Specifications

Sulphate-resistant cements Specifications

Introduction date - 2015-01-01

1 area of use

This standard applies to sulfate-resistant cements (hereinafter referred to as cements) intended for the manufacture of concrete and reinforced concrete products and structures with increased corrosion resistance when exposed to environments aggressive in sulfate content.

2 Normative references

This standard uses normative references to the following interstate standards:

4 Classification and designations

4.1 Classification of cements by types, classes and subclasses of strength must comply with GOST 30515 with an additional designation of sulfate resistance "SS" and table 1 of this standard.

4 2 According to the material composition, cements are divided into types:

CEM I SS - sulfate-resistant Portland cement;

CEM II / A CC and CEM M / B CC - sulfate-resistant Portland cement with mineral additives;

CEM Ill / A SS - sulfate-resistant Portland slag cement.

4.3 Types, classes and strength subclasses of sulfate-resistant cements, as well as additives allowed for use - the main components of cement are indicated in table 1.

Official edition

Table 1

Name of cement	type of cement	Applicable strength classes and subclasses	Permitted Mineral Supplements - Main Ingredients
Sulfate resistant Portland cement		32.5N; 32.5B; 42.5N; 42.5B	Not allowed
Sulfate-resistant Portland cement with mineral additives	CEM II/A-LU SS CEM 11/V-SH SS	32.5N; 32.5B: 42.5N	Blast furnace granulated slag
	CEM 11/A-P SS		Pozzolana
	CEM 11/A-K(Sh-P) SS CEM 11/A-K(Sh-P,MK) SS		A mixture of slag with pozzolana or microsilica
Sulfate resistant slag portland	CEM Ill/A SS	32.5N; 32.5B: 42.5N	Blast furnace granulated slag
Note - Types, classes and subclasses of strength - according to GOST 31108

4 4 Symbol for cement should be:

From the name of cement according to 4.2 and table 1;

Cement type designations according to table 1;

Strength class and subclass:

Sulfate resistance designations "SS";

Symbols of this standard.

An example of a symbol for sulfate-resistant Portland cement of strength class 42.5 fast-hardening:

Sulfate-resistant Portland cement CEM142.56 SS GOST 22266-2013.

The same symbol for sulfate-resistant Portland cement with the addition of pozzolana of strength class 32.5 normally hardening:

Sulfate-resistant Portland cement with pozzolana CEM 11 / A-P 32.5N SS GOST 22266-2013. It is allowed to omit its name in the symbol of cement.

Legend example 1:

Legend example 2:

Symbols for plasticized or hydrophobized cements must additionally include the designation of plasticization "PL" or hydrophobization "GF". placed before the number of this standard.

An example of a symbol for plasticized sulfate-resistant Portland cement of strength class 42.5 normally hardening:

Sulfate-resistant Portland cement CEM I 42.5N SS PL GOST 22266-2013 or CEM I 42.5N SS PL GOST 22266-2013

The same hydrophobized sulfate-resistant Portland cement with a slag content of 20% to 35%. strength class 32.5, normally hardening:

Sulfate-resistant Portland cement with slag CEM 11/V-Sh 32.5N SS GF GOST 22266-2013 or CEM 11/V-Sh 32.5N SS GF GOST 22266-2013

The symbol of cement, in which the content of alkaline oxides R: 0 does not exceed 0.6% of its mass, is supplemented with the word "low alkaline" or the designation "NShch".

An example of a symbol for sulfate-resistant Portland cement, strength class 32.5. fast hardening. low alkaline, plasticized:

5 Technical requirements

Cements must comply with the requirements of this standard and be produced according to the technological documentation approved by the manufacturer.

GOST 2226S-2013

5.1 Characteristics

5.1.1 The clinker used in the production of cement, in terms of chemical and calculated mineralogical composition, must comply with the requirements given in Table 2.

T a b le 2_ As a percentage of the mass of clinker

Name indicator	type of cement
Name indicator		CEM 11/A-Sh SS CEM I/V-Sh SS CEM I/A-L SS CEM II/A-K SS
Tricalcium aluminate CsA. no more
(CsA ♦ C*AF). no more	Not standardized	Not standardized
Aluminum oxide AI2O3 max			Not standardized
Magnesium oxide MdO, no more

5.1.2 The chemical composition of the cement must comply with the requirements given in Table 3.

Table 3 As a percentage of the mass of cement

Name of indicator	Types of sulfate-resistant cements
Name of indicator	CEM ICC grades and strength subclasses 32.5N, 32.5B. 42.5N	CEMICC class and strength subclass 42.5B	CEM 11/A-Sh SS, CEM I/V-Sh SS, CEM I/A-P SS. CEM II/A-K SS of all strength classes and subclasses	CEM Ill/A SS of all strength classes and subclasses
Loss on ignition PPP), not more than				Not standardized
Insoluble residue				Not standardized
Sulfur oxide SOj. no more
Chlorine ion SG, no more
Alkaline oxides R;0 in terms of Na?0				Not standardized

* The requirement for the content of alkali oxides in cement is applied by agreement between the supplier and the consumer.

5.1.3 It is allowed to introduce additives into all types of cements - auxiliary components that meet the requirements of GOST 31108. At the same time, in cements of types CEM II and CEM III, the total content of additives - the main and auxiliary components should not exceed that specified in Table 1 of GOST 31108.

5.1.4 By agreement between the supplier and the consumer, it is allowed to introduce plasticizing additives into the cement during grinding in an amount of not more than 0.5% of the mass of cement in terms of the dry matter of the additive. Plasticizing additives should not be used if they do not combine well with super- or hyper-plasticizers introduced into the concrete or mortar mixture during their manufacture to reduce water demand and / or increase the survivability of these mixtures.

5.1.5 For protection against moisture and CO; air and extend the shelf life of cement, it is allowed to introduce hydrophobizing additives into the cement during grinding in an amount of not more than 0.3% of the mass of cement in terms of the dry matter of the additive. Hydrophobized cement should not absorb water for 5 minutes from the moment a drop of water is applied to the cement surface.

5.1.6 In the production of cement, in order to intensify the grinding process, it is allowed to introduce technological additives that do not impair the quality of cement, in an amount of not more than 0.5, organic additives - not more than 0.1% of the mass of cement in terms of the dry substance of the additive. In this case, the total content of all types of organic additives introduced into cement should not exceed 0.5%.

The effectiveness of technological additives when they are first used, as well as the absence of their negative effect on the properties of cement and concrete, must be confirmed by test results in accredited testing centers.

5.1.7 The compressive strength of cement of the corresponding class and strength subclass is given in table 4

Table 4

Class and subclass	Compressive strength MPa aged
strength

5.1.8 The cement must pass tests for uniformity of volume change. The expansion of the samples should not exceed 10 mm.

5.1.9 In terms of the start of setting, cements must comply with the requirements of GOST 31108 for the corresponding strength classes and subclasses.

5.1.10 The fineness of grinding of cement, determined by the specific surface area by the method of air permeability. must be at least 250 m / kg. For cements containing pozzolana additives, the fineness of grinding is determined by the residue on a sieve with mesh No. 009 according to GOST 6613. The residue on the sieve should not be more than 10% of the mass of the sieved sample. It is allowed to carry out determinations on a sieve with mesh No. 008 according to GOST 6613. The residue on sieve No. 008 should not be more than 12% of the mass of the sieved sample.

5.2 Material requirements

5.2.1 For the manufacture of cements, the following are used:

Portland cement clinker of normalized composition in accordance with the requirements given in table 2;

Gypsum or gypsum anhydrite stone according to GOST 4013. It is allowed to use other materials containing mainly calcium sulfate, according to the relevant regulatory documentation;

Granulated blast-furnace slag according to GOST 3476. The content of aluminum oxide A1: 0 3 in slags for the manufacture of cements TsEM I / A-Sh SS and TsEM ll / A-K SS should be no more than 8%. in slags for the manufacture of cements CEM I / V-Sh SS and CEM Ill / A SS - no more than 12:

Pozzolana or microsilica according to current regulations.

5.2.2 Active mineral additives must comply with the requirements given in subparagraph 5.2.2.2 of GOST 31108.

5.2.3 Materials used as auxiliary components must comply with the requirements for these materials given in clause 5.2.3 of GOST 31108.

5.3 Packaging

5.4 Marking

6 Safety requirements

6.1 The specific effective activity of natural radionuclides A^ in cement should be no more than 370 Bq/kg, and of mineral additives used in the manufacture of cement - no more than 740 Bq/kg.

6.2 In the manufacture and use of cement, the requirements of hygiene standards established by the authorized body in the territory of the state, the safety requirements of the technical regulations in force in the country, must be met.

6.3 It is not allowed to introduce technological or special additives into cement that increase the hazard class of cements.

7 Acceptance rules

7.1 Acceptance of cement, including acceptance in the stream, is carried out in accordance with GOST 30515 with the additions given in table 5.

Table 5

Name indicator	minor defect
	Classes and under	strength classes

Compressive strength. MPa (lower limit), not less, aged - 2 days


Beginning of setting, min, not earlier
Uniformity of volume change (expansion), mm. no more	Minor defects are not allowed

CEM ll/A-W SS CEM ll/B-W SS CEM ll/A-P SS CEM II/A-K SS

7.2 Each batch of cement or part of it delivered to one address must be accompanied by a quality document in accordance with GOST 30515.

8 Confirmation of conformity of cement quality level

8.1 Assessment of compliance of the quality level with the requirements of this standard is carried out according to GOST 30515 with the additions given in table 6.

Table 6

Name of indicator	type of cement	Statistical method for confirming the level of quality
Name of indicator	type of cement	Variable estimation	Rating by acceptance number

The sum of CsA + CaAF in clinker
	CEMICC CEM II SS
Compressive strength

Beginning of setting
Uniformity of volume change (expansion^
The material composition of cement
♦ A quality level assessment is carried out. Quality assessment is not carried out

9 Test methods

9.1 Physical and mechanical properties of cements are determined according to GOST 30744.

9.2 Chemical characteristics of clinker, cement and materials used in their production. determined according to GOST 5382.

9.3 Calculation of the mineralogical composition of clinker for cement type CEM I SS is performed on the basis of data on the chemical composition of cement, for other cements - on the basis of data on the chemical composition of clinker according to the formulas:

CsA (3CaO AlO3) = 2.65 (A1 2 Ge - 0.64 Fe: 0 3).

C4AF (4СаО AI203 Fe203) = 3.04 Fe: 0 3,

R: 0 = Na: 0 + 0.658 K r O.

9 4 The material composition of cements is determined in samples taken at the manufacturer. according to accepted certified methods.

9.5 Specific effective activity of natural radionuclides in cement is determined according to GOST 30108. Tests are carried out periodically in accredited testing laboratories.

10 Transport and storage

Transportation and storage of cements is carried out in accordance with GOST 30515.

* In the Russian Federation, GOST R 51795 “Cements Methods for determining the content of mineral additives” is in force

Cements, depending on the requirements for concrete, are recommended to be used in accordance with Table A 1.

Table A 1

Special requirements for concrete	type of cement
Special requirements for concrete		CEMN/A-Sh SS CEM 11/V-Sh SS	CEM P/A-L SS CEM II/A-K SS	CEM Ill/A SS
Corrosion resistance when exposed to environments aggressive in terms of sulfate content	All cements can be used
Corrosion resistance when exposed to environments aggressive in terms of sulfate content, with simultaneous systematic freezing and thawing and / or moistening and drying			Permissible, based on test results, strength classes and subclasses 32.5V and 42.5H
Corrosion resistance when exposed to environments that are aggressive in terms of sulfate content and reduced heat generation is required	Recommended for mandatory control of heat generation of cement

* In the Russian Federation, sulfate-resistant cement used in concrete for transport purposes must also comply with the requirements of GOST R 55224-2012 "Cements for transport construction Specifications".

UDC 691.54:006.354 MKS 91.100.10 NEQ

Keywords: sulfate-resistant cements, technical requirements, acceptance rules and quality level assessment, test methods

The construction of buildings is gaining momentum every year and the main material of these buildings, of course, is cement. Without it, almost no construction can begin, even if the house is framed, then GOST regulates the pouring of a concrete foundation.

There are, of course, exceptions when metal piles are screwed or hammered in the swamps on which the structure is installed. But even in the cavity of the pile pipe, it is recommended to pour the composition of the concrete mass. The service life of the building will depend on the freshness of the cement, made according to all the rules of the solution.

The most common construction method is brick masonry buildings. Due to such qualities as reliability, aesthetics and safety, this material is used not only in multi-storey construction, but also in private buildings. Many people ask the question: what is the best composition of the solution to use? First, let's look at what solutions are.

What mortar for laying bricks?

The mortar for masonry, according to GOST, should include binders, cement or lime. On this basis, the solution is divided into lime And cement. The role of the filler can be played by clay, lime, but more often it is sand. Clay with lime can only be added in certain cases. And, of course, the most important ingredient is water.

There are two definitions of the word "solution":

this is a simple mixture in which the binder component is one, for example, cement-sand;
it is a complex mixture when there are two or more binders, for example: cement - lime - sand or cement - clay - sand.

By property, binders are divided into air, which dry well in heat, and hydraulic, preferring a moist environment where moisture is collected and strengthened due to it.

According to the enriched composition and filler, one can judge the merits of the solution:

bold - cement predominates, so it has high plasticity, and the main disadvantage is high shrinkage. With a thick layer, such a mass will crack on the surface during drying;
solutions are called normal solutions moderately balanced by the proportions of binders and fillers;
thin and depleted - there is little binder, due to which shrinkage is less, which is very important for plastering work.

GOST indicators for density:

A solution prepared on the basis of sand, weighing 1500 kg / m3, is considered heavy.
A light solution is called a solution weighing less than 1500 kg / m3.

Purpose of the solution

Masonry compositions are used, as a rule, for walls made of bricks, blocks, as well as refractory bases.
The finishing composition is necessary for plastering in order to insulate and level the surface.
Special mixtures are made for specific work on soundproofing or waterproofing walls and other surfaces.

With a margin of compressive strength, there are the following compounds under the brand name: 4; 10; 25;50; 75; one hundred; 200; 300; 400; 500.

In the old days, a chicken egg was added to the cement mortar, which served as a plasticizer and at the same time a protective film against moisture.

Mixtures for masonry and their characteristics

cement composition solution is the most common, despite the fact that its data is not the best when used at home. The thing is that cold is carried out into the filled seams with a solution. The mixture is made from cement, sand and water and is hard without the addition of a plasticizer.

According to GOST, the sand must be clean without lumps and dirt, for this it is sieved. A homogeneous mortar contributes to a strong bond between the bricks. Many craftsmen try to make the mixture more plastic by adding more cement to it, but you need to be careful with this. With a large amount of binder, the solution will indeed be plastic, but if you overdo it, after drying it will be brittle and crumbling.

Bricklayers test the mortar in several ways by lowering a plumb line or a corner of a brick into it, watching how it sinks.

A properly prepared mixture will easily absorb the object, and after extraction it will not leave a trace. This mixture perfectly fills the cavities. Some experts test for viscosity by crushing it with their fingers: a good solution stretches.

Lime mortar is considered plastic with good adhesion and low shrinkage, fits perfectly on all building materials, is warmer than cement mortar.

The proportions of the solution for the foundation part with increased moisture according to GOST:

brand of cement	cement/sand	brand of mortar
		300
		200
300/400/500	1:2,5/1:1,3/1:4	150
from 200 to 500	1:2/ 1:3/ 1:4,5/1:5,5	100
from 200 to 500	1:2,5/1:4/1:5,5/1:6,6	75

How to knead the masonry mortar with your own hands?

The first thing to do: pay attention to the quality of the sand. It should not contain stones, lumps of earth and other dirt, as recommended by GOST. The solution affects the quality of the masonry, which should be monolithic, and the operational life of the building will depend on this. For this reason, the sand is sieved.

For the composition, the following components should be prepared:

sand;
cement;
lime.

The universal proportion is: 1 part cement / 1 part lime / 5 parts sand.

Mixing methods

There are several options for mixing the solution, both manually and automatically.

Method number 1 Automatic

A certain amount of water is poured into the concrete mixer, after which the required proportion of cement is poured into it and mixed to a state of milk, then lime and sand are poured. Some experts first mix all the ingredients dry, only then they add water, there is no difference in the kneading option, the main thing is that the mixture has the required consistency according to GOST.

Method number 2 Manual

Water is poured into the mixing container and cement is poured, which must be dissolved to a liquid state without lumps. After such an operation, lime is poured and the same actions are performed. Lastly, sand is added to make it easier to mix.

There are cases when there is no container where one could make a solution for such a situation, there is a very good method. Sand of a calculated proportion is poured into a clean place, and cement with lime falls out on it and is thrown with a shovel from one place to another, and at the end a container is made from the mixed loose mass and water is poured. It is necessary to wait a while, after the moisture is absorbed, everything is thoroughly mixed.

To improve the mobile properties of the solution, you must add any Fairy detergent or liquid soap. Observing all the proportions and technology in the manufacture of the binder mass, you can safely count on a long unemployed life without repairing the brickwork.

Consumption of masonry mortar

The most common mortar for brickwork is cement-sand, the consumption of such a mixture will be approximately 75 liters per 1m3 of masonry one brick thick. For a wall of one and a half bricks, the approximate consumption will be 115 liters per cubic meter.

Today, the market offers ready-made dry mixes for brickwork that can be used in all weather conditions. But cement still remains unrivaled due to its universal characteristics and a small price segment at which everyone can afford the material. Making a solution yourself is not difficult and almost everyone can handle it.

For the construction of a building from cement mortar, the best period is summer, when the cement dries naturally without auxiliary chemical additives such as potash and sodium nitrite, as stated in GOST. On warm days, the masonry mortar will gain strength on its own without harming its structure.

pluskirpich.ru

Mortar is used to fasten the bricks together. Any solution consists of a binder, aggregate and water. Mortars for masonry can be used on a lime, cement-lime or cement base.

lime mortars warmer, but their strength is significantly inferior to the strength of cement mortars. It is prepared from lime dough or ground quicklime and sand. The dough is mixed with sand and water until a homogeneous mass is obtained. The solution can be passed through a sieve to weed out lumps. Lime mortars for brickwork are usually made in a ratio of 1:2 to 1:5, depending on the fat content of the lime.

Lime mortar masonry is less durable, so they are rarely used for masonry walls.

Cement-lime mortars composed of cement and lime mortar. Lime dough (slaked lime) is diluted with water to the density of milk and filtered on a clean sieve. A dry mixture is prepared from cement and sand, it is mixed with milk of lime and thoroughly mixed. The addition of lime milk increases the plasticity of the solution.

(cement: lime: sand)

Grade of cement	Solution grade
Grade of cement	200	150	100	75	50
500	1: 0.2: 3	1: 0.3: 4	1: 0.5: 5.5	1: 0.8: 7
400	1: 0.1: 2.5	1: 0.2: 3	1: 0.4: 4.5	1: 0.5: 5.5	1: 0.9: 8

The plasticity of cement-lime mortar makes it preferred for almost all types of masonry.

cement mortars prepared from sand and cement in a ratio of 1:3 to 1:6 (cement:sand), depending on the brand of cement and the requirements for the solution.

To do this, first knead a dry mixture of sand and cement in the required ratio. Stir it thoroughly and then add water to mix until smooth. Compared to lime or cement-lime mortars, the cement mortar is less mobile and, with almost any brand of cement, it turns out to be unnecessarily strong and rigid.

(cement: sand)

Grade of cement	Solution grade
Grade of cement	200	150	100	75	50
500	1: 3	1: 4	1: 5.5	1: 6	—
400	1: 2.5	1: 3	1: 4.5	1: 5.5	—

The ratio between the amount of binder and sand is given by volume. The mixing of the mixture of binder and aggregate must be done in portions, each time visually assessing the mobility of the mortar mixture after thorough mixing.

To prepare the mortar mix, take clean cold water (from +15 to +20˚С). When preparing the solution, the dosage should be strictly observed.

The optimal water consumption for mixing is:

- for cement-sand mortars - 0.8 parts of water per 1 part of cement;

- for concrete grade M-100 (B7.5) - 0.5-0.7 parts of water per 1 part of cement.

As a filler should be used:

- sand for construction work with a grain size of not more than: 2.5 mm

Portland slag cement is not recommended for use in winter.

Approximate consumption of cement for the preparation of 1 meter of cubic (m3) mortar for brickwork, kg.

Grade of cement	Consumption of cement brand M100
M400	300
M500	250
	Consumption of cement brand M150
M400	400
M500	330
	Consumption of cement brand M200
M400	490
M500	410
	Consumption of cement brand M300
M400	600
M500	510

The mobility of the mortar mixture is determined by the depth of immersion of a metal standard cone

At the moment, a wide range of ready-made dry mixes has appeared on the building materials market. The dry mixture is mixed with the required amount of water, according to the technical data. Mixing is carried out in a mortar mixer or a hand mixer in a container. Mixing time 5-7 minutes. It is not allowed to introduce any foreign additives or fillers into the composition of the mixture.

The strength of the hardened mortar depends not only on its correct preparation, but also on what base it is applied to. When laying the mortar mix on a porous base that intensively absorbs water from the solution, the strength of the hardened mortar will be significantly higher than that of the same mortar laid on a dense base that does not absorb moisture well.

Before use, the solution must be thoroughly mixed, because over time, heavy particles settle, the solution separates and becomes heterogeneous.

In order for mortars and concretes to be of the best quality, to have certain properties, organic additives are added to them - these are sand, crushed stone, marble, clinker and inorganic compounds. Inorganic additives are synthetic substances. The mobility, rigidity, setting of cement mortars, as well as concretes, depends on how many additives in the mortar mixture.

kamenschik.info

Lime mixtures

When asked which mortar is best used for masonry, many believe that the best is to use ordinary cement, but this is far from the case.

Often a more plastic composition is required for the installation of fences, interior partitions. In this case, you can use warm lime, which is prepared from quicklime and sand. All components are mixed until a homogeneous mass is obtained, then ordinary water is added. The masonry mass is thoroughly mixed until a homogeneous composition is obtained, it should not contain lumps and foreign impurities. The proportion is usually as follows: from two to five are taken for one part of lime - sand of the middle fraction.

cement mortars

Cement is prepared from a mixture of ordinary cement and sand of medium fraction. The proportions can be different, they depend on the brand of cement used and can be: from three to six sand is taken for one part of the cement.

First, the dry mixture is kneaded, then water is gradually added, then everything is mixed until a homogeneous, thick mass is obtained. But this option is not the best, since ordinary cement is inactive, even when using any grade, it turns out to be too rigid, too strong.

Cement-lime composition for laying bricks consists of lime and cement. The cooking process is as follows:

Hydrated lime, that is, lime dough, is diluted to a state of thick milk, after which it is filtered through a sieve.
On the basis of sand and cement, a dry mixture is prepared, which is dissolved with milk of lime, after which it is thoroughly mixed. The addition of lime can increase the ductility of the resulting mixture, such a mixture is recommended for laying bricks of any type.

Simple masonry mortar

The simplest solution is prepared from a binder (it can be ordinary cement or lime) and sand. In some cases, clay can also act as a binder, but these are very highly specialized works that are not performed so often.

The most common cement-sand mortar has the following proportions: one part of cement for three - sand of medium fraction. The resulting mixture is thoroughly mixed first in a dry form, after which plain water is gradually added to it. Stirring is carried out until the resulting composition acquires the proper density and mobility.

It is not so difficult to check such characteristics: the container in which the solution is stirred must be tilted at an angle of forty degrees; if the mixture does not pour out, then you can proceed to the masonry process.

Difficult styling solution

A complex batch for bricks is a mixture of several components and a binder material that affects the physical characteristics. Among such complex mortars for brickwork, cement-lime-clay, cement-lime and others are used, thanks to which the masonry is simpler, but also reliable.

Clay, for example, is added to make the composition more plastic. It does not fall apart during operation, it fits very neatly and easily. The use of plasticizers makes the brick mix indispensable when laying facade walls. Such a mixture is very economical, it provides uniform compaction, when spreading it is conveniently leveled on the surface of the previous row. Therefore, many experts recommend spending a little more time preparing the solution, but then it will only help in the work.

Component ratio

To properly make brick mortars, it is necessary to determine the ratio of the main ingredients. It is recommended to take sand of medium size, that is, with a fraction of two and a half and above, the brand of solution may be different, but it is it that affects the proportions. Here are examples of how brick mortars can be made based on this:

when using cement grade 500, the proportions are: one part of cement, 2/10 - lime, three parts of sand;
when using brand 400, the proportions will be as follows: one part of cement, 1-3 / 10 parts of lime, 2.5-4 - sand;
for brand 300, the proportions will be as follows: one part of cement, 2/10 of lime and 3.5 of sand.

All components must be thoroughly mixed until a homogeneous mass is obtained. This example was presented for cement-limestone masses, for a cement-sand mortar, the proportions will be somewhat different:

with cement grade 500, the proportions will be: 1 part of cement per 3 - sand;
for grade 400: 1 part of cement and 2.5 of sand.

Water is taken cold and clean, its temperature should be from 15 degrees to 20. In the manufacture, all dosages should be observed exactly.

The optimal water flow is:

when using concrete grade 100 - from 1/2 to 7/10 of water is taken for 1 part of cement;
for cement-sand, 8/10 of water must be taken for each part of cement.

Attention: when carrying out work in the winter months, Portland slag cement should not be taken, since the quality of the solution will be extremely low!

The consumption of cement for laying can be as follows:

for the M100 brand - 300-250 kg per cubic meter;
for M150: 400-330 kg per cubic meter;
for M200: 490-410 kg;
for M300: 600-510 kg.

Solution mobility

An important characteristic that the composition must have is mobility. This value depends on which components are used to mix the solution. To determine mobility, you can take an ordinary cone with an angle of 30 degrees, a height of 15 cm and a mass of 300 g. This cone must be immersed in the prepared masonry mixture. Mobility is determined by exactly how many centimeters the cone has sunk.

For the use of a solid brick, a composition for masonry with a mobility of 9-13 cm is suitable, but for a hollow brick of any kind, the permissible value is only 7-8 cm. It must be remembered that when working in very hot weather, the mobility of the solution must be increased to about 12- 14 cm, so that the masonry is strong and reliable.

When using bricks in construction, it is important to choose the right not only the masonry material itself, but also the mixture with which the bricks will be attached to each other. It depends on what composition is used for laying bricks, how accurately the proportions and mobility are observed, whether the future wall and other structure will be reliable, durable and stable. Today, different types of solutions are used, but their choice depends on the weather conditions under which the masonry is made, for what purposes the building material is used.

1pokirpichy.ru

Types of compositions

Various types of mortars are used to create durable brickwork. The technology of their preparation has a certain similarity. Any composition for laying bricks has three key components available: a filler, which most often acts as sand, a binder and water. The key difference is in the binding element. Additional substances in the form of clay, PVA glue and other additives help to achieve greater viscosity or plasticity.

The cement mixture is the main binder component in the preparation of mortar for laying bricks. In addition to it, these functions perform:

lime;
clay;
cement-lime mixture.

Based on the technological properties, the following cement compositions for bricklaying can be prepared:

Skinny. They have a small amount of binder. They are characterized by low ductility and strength, which in the future will lead to cracking of the material. The positive point is the cheapness of the mixture.
Fatty. Contain an increased volume of the binder component. Plasticity and high strength are guaranteed in this case, however, there is a tendency to crack and the risk of shrinkage during curing.
It is optimal to prepare a normal cement mortar, where the observance of proportions helps to preserve all the positive qualities when laying bricks.

Description of main components

Careful selection of the main components of the cement mortar will allow you to prepare a high-quality mass that will ensure a solid brick laying. For this you need:

Water for mixing requires clean, free of impurities, dirt and foreign matter. It is ideal to draw it from the well. The temperature of the liquid depends on the season when it is required to prepare the cement mass: cold water is suitable in summer, in winter it needs additional heating.
Sand is an integral component of the cement composition. The absence of traces of clay and other impurities is a prerequisite, otherwise the period of weathering of the mortar from the masonry will accelerate.
The main component that determines the properties of the future composition is cement. In order to correctly prepare the mortar and maintain the correct proportions, the brand of the cement mixture is of key importance. There is a pattern: the higher the brand of the binder component, the smaller the volume is needed to prepare the solution. If you want to prepare a composition of a darker shade, just add graphite or soot to it or purchase a higher brand of cement. At the same time, it is imperative to follow the compliance of the established proportions!
Detergents will help prepare the cement mass without purchasing expensive plasticizers. Shampoo, washing powder or dishwashing liquid are suitable for this role. The exception is a cleaning agent due to the likelihood of cracks in the brickwork.

Characteristics and proportions of various solutions

In addition to the cement mortar in its pure form, lime and cement-lime mixtures are periodically used for bricklaying. Properties, proportions and in what cases it is better to cook each of the species, we will consider in detail.

Lime

Lime mortar for brickwork is rarely used, this is due to the deterioration of strength indicators. The main area of \u200b\u200bits operation is chimney pipes made of bricks or laying the foundation for a furnace. The proportions of the solution for these purposes vary based on the fat content of the lime. To prepare the optimal composition, 2 to 5 parts of sand are added to one part of the binder component.

Cement and cement-lime

When laying bricks, cement mortar is invariably popular among builders. Its distinctive characteristics:

increased rigidity;
the coldest composition among all species;
however, these characteristics simultaneously provide its increased strength.

The plasticity of the composition is directly related to the proportions of the introduced components. Based on the brand of dry cement mixture and the requirements for bricklaying, the mortar is formed in proportions similar to the lime composition: from 2 to 5 shares of sand are added to one share of the binder component.

Lime milk increases the plasticity of the composition compared to a purely cement version. It becomes warmer while maintaining the necessary strength, which allows for a wide range of applications. The only condition is the impossibility of application if the humidity level is above the norm. The optimal proportions of binders (in the form of cement and lime) and filler are:

for solution M25 - 1/1/4;
for solution M50 - 1 / 0.5 / 4.5.

Cooking technology

The secret of how to prepare a high-quality cement mortar intended for laying bricks is extremely simple - choose the right proportions. Tools should be prepared in advance - clean buckets, a bulk container for mixing, a shovel and a trowel.

The use of a concrete mixer (if there is a team of builders) will help speed up the entire process of brickwork; for small volumes, it is better to knead the cement mixture by hand. For this you should:

If the cement mass was prepared correctly, and all proportions were observed, in its consistency it will resemble homemade thick sour cream.

INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION

INTERSTATE

STANDARD

SULFATE-RESISTANT CEMENTS

Specifications

(EN 197-1:2011, NEQ)

(EN 197-2:2000, NEQ)

Official edition

Staidartikform

Foreword

About the standard

1 DEVELOPED BY CEMISCON Firm LLC

2 INTRODUCED by the Technical Committee for Standardization TC 465 "Construction)"

3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Protocol No. 44-2013 dated November 14, 2013)

4 This standard complies with the following European regional standards: EN 197*1:2011 Cement - Part 1: Composition, specification and conforming criteria for common cements: EN197-2: 2000 Cement - Part 2: Conformity evaluation (Cement. Part 2: Conformity assessment) regarding the classification of cements by material composition and strength

5 By order of the Federal Agency for Technical Regulation and Metrology dated June 11, 2014 N9 653-st, the interstate standard GOST 22266-2013 was put into effect as the national standard of the Russian Federation from January 1, 2015.

6 INSTEAD OF GOST 22266-94

Information about changes to this standard is published in the annual information index "National Standards", and the text of changes and amendments - in the monthly information index "National Standards". In case of revision (replacement) or cancellation of this standard, a corresponding notice will be published in the monthly information index "National Standards". Relevant information. notification and texts are also posted in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet

(IUS No. 10 2015)

INTERSTATE STANDARD

SULFATE-RESISTANT CEMENTS Specifications

Sulphate-resistant cements. Specifications

Introduction date - 2015-01-01

1 area of use

This standard uses normative references to the following interstate standards:

GOST 3476-74 Blast-furnace and electro-thermophosphoric granulated spats for cement production

GOST 4013-82 Gypsum and gypsum anhydrite stone for the production of binders. Specifications

GOST 5382-91 Cements and materials for cement production. Methods of chemical analysis

GOST 6613-86 Woven wire mesh with square mesh. Specifications

GOST 30108-94 Construction materials and products. Determination of specific effective activity of natural radionuclides

GOST 30515-2013 Cements. General specifications

GOST 30744-2001 Cements. Test Methods Using Polyfractionated Sand

GOST 31108-2003 General construction cements. Specifications

Note - When using this standard, it is advisable to check the validity of reference standards in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet or according to the annual information index "National Standards", which was published as of January 1 of the current year, and on issues of the monthly information index "National Standards" for the current year. If the reference standard is replaced (modified), then when using this standard, you should be guided by the replacing (modified) standard. If the referenced standard is canceled without replacement, then the provision in which the reference to it is given applies to Part 8 without affecting that reference.

3 Terms and definitions

This standard uses the terms and definitions in accordance with GOST 30515.

4 Classification and designations

4.1 Classification of cements by types, classes and subclasses of strength must comply with GOST 30515 with an additional designation of sulfate resistance "SS" and table 1 of this standard.

4.2 According to the material composition, cements are divided into types:

CEM I SS - sulfate-resistant Portland cement;

CEM II / A SS and CEM II / B SS - sulfate-resistant Portland cement with mineral additives:

CEM Ill / A SS - sulfate-resistant slag-hortland cement.

4.3 Types, classes and strength subclasses of sulfate-resistant cements, as well as additives allowed for use - the main components of cement are indicated in table 1.

Official edition

Table 1

Name of cement	type of cement	Applicable strength classes and subclasses	Permitted Mineral Supplements - Main Ingredients
Sulfate resistant potlandcement		32.5N. 32.5B. 42.5N; 42.5B	Not allowed
Sulfate-resistant Portland cement with mineral additives	CEM ll/A-W SS CEM ll/B-W SS	32.5N; 32.5B; 42.5N	Blast furnace granulated slag
	CEM ll/A-P SS		Pozzolana
	CEM N/A-C(Sh-P) SS CEM I/A-C<Ш- П.МК) СС		A mixture of slag with pozzolana or microsilica
Sulfate resistant slag portland		32.5N; 32.5B; 42.5N	Blast furnace granulated slag

Note - Types, classes and subclasses of strength - according to GOST 31108.

4.4 Symbol of cement should consist of:

From the name of cement according to 4.2 and table 1:

Cement type designations according to table 1:

Strength class and subclass;

Sulfate resistance designations "SS";

Symbols of this standard.

An example of a symbol for sulfate-resistant Portland cement of strength class 42.5 fast-setting:

Sulfate-resistant Portland cement CEM142.56 SS GOST 22266-2013.

The same symbol for sulfate-resistant Portland cement with the addition of pozzolana of strength class 32.5 normal flowing:

Sulfate Portland cement with pozzolans CEM ll / A-P 32.5N SS GOST 22266-2013.

It is allowed to omit its name in the symbol of cement.

Legend example 1:

CEM / 42.56 SS GOST 22266-2013.

Legend example 2:

CEM11/A-P 32.5N SS GOST22266-2013.

Symbols for plasticized or hydrophobic cements should additionally include the designation of plasticization "PL" or hydrophobicity "GF" placed before the number of this standard.

An example of a symbol for plasticized sulfate-resistant Portland cement of strength class 42.5 normally hardening:

Sulfate-resistant Portland cement CEM I 42.5N SS PL GOST 22266-2013 or CEM 142.SH SS PL GOST 22266-2013.

The same hydrophobic sulfate-resistant Portland cement with a slag content of 20% to 35%. strength class 32.5. normal temperature:

Sulfate-resistant Portland cement with slag CEM 11/8-Sh 32.5N SS GF GOST 22266-2013 or CEM I/V-Sh 32.5N SS GF GOST 22266-2013.

The symbol of cement, in which the content of alkaline oxides RjO does not exceed 0.6% of its mass, is supplemented with the word "low alkaline" or the designation "NShch".

An example of a symbol for sulfate-resistant Portland cement, strength class 32.5, fast-setting. low alkaline, plasticized:

CEM 132.56 SS NSh PL GOST 22266-2013.

5 Technical requirements

Cements must comply with the requirements of this standard and be produced according to the technological documentation approved by the manufacturer.

5.1 Characteristics

5.1.1 The clinker used in the production of cement, in terms of chemical and calculated mineralogical composition, must comply with the requirements given in Table 2.

Table 2 In percent of the mass of clinker

Name indicator	type of cement
Name indicator		CEM 11/A-sh SS CEM P/V-W SS CEM IVA-P SS CEMI/A-K SS
Tricalcium aluminate CjA. no more
(C.A + C.AFI. no more	Not nominated	Not nominated
Aluminum oxide AljOj no more			Not standardized
Magnesium oxide MdO. no more

5.1.2 The chemical composition of the cement must comply with the requirements given in Table 3.

Table 3 As a percentage of the mass of cement

Name of indicator	Types of sulfate-resistant cements
Name of indicator	strength classes and subclasses 32.5N; 32.5B: 42.5N	class and subclass of strength 42.5B	cem li/A-lu SS. CEM lt/B-SH SS. CEM 11/A-P SS. CEM N/A-K SS of all classes and subclasses of brilliance	CEM iil/A SS all classes and subclasses of strength
Loss on ignition PPP1. no more				Not standardized
Insoluble residue				Not standardized
Sulfur oxide SOi. not whiter
Chlorine ion C! . no more
Alkaline oxides RjO in terms of Ma-,0				Not standardized

* The requirement for the content of alkali oxides in cement is applied by agreement between the supplier and the consumer._

5.1.3 It is allowed to introduce additives into all types of cements - auxiliary components that meet the requirements of GOST 31108. At the same time, in cements of the CEM I and CEM III types, the total content of additives - the main and auxiliary components should not exceed that specified in Table 1 of GOST 31108.

5.1.5 To protect against the effects of moisture and CO2 in the air and to prolong the shelf life of cement, it is allowed to introduce water-repellent additives into the cement during grinding in an amount of not more than 0.3% of the mass of cement in terms of the dry matter of the additive. Hydrophobic cement should not absorb water within 5 minutes from the moment a drop of water is applied to the surface of the cement.

5.1.8 In the production of cement, to intensify the grinding process, it is allowed to introduce technological additives that do not impair the quality of cement, in an amount not exceeding 0.5. organic additives - no more than 0.1% of the mass of cement in terms of the dry matter of the additive. In this case, the total content of all types of organic additives introduced into cement should not exceed 0.5%.

The effectiveness of processing aids when they are first used, as well as the absence of their negative effect on the properties of cement and concrete, must be confirmed by test results in accredited testing centers.

5.1.7 The compressive strength of cement of the appropriate class and strength subclass is given in table 4.

Table 4

Class and subclass durable gi ueueHia	Flexibility in compression. MPa. but voeaste
	2 days at least	7 days at least

5.1.8 The cement must pass tests for uniformity of volume change. The expansion of the samples should not exceed 10 mm.

5.1.9 In terms of the start of setting, cements must comply with the requirements of GOST 31108 for the corresponding strength classes and subclasses.

5.1.10 The fineness of grinding of cement, determined by the specific surface area by the method of air permeability. must be at least 250 m 2 /kg. For cements containing pozzolana additives, the fineness of grinding is determined by the residue on the sieve with mesh No. 009 according to GOST 6613. The residue on the sieve should not be more than 10% of the mass of the sieved sample. It is allowed to carry out determinations on a sieve with mesh No 008 according to GOST 6613. The residue on sieve No 008 should not be more than 12% of the mass of the sieved sample.

5.2 Material requirements

5.2.1 For the manufacture of cements, the following are used:

Portland cement clinker of normalized composition in accordance with the requirements given in Table 2:

Gypsum or gypsum anhydrite stone according to GOST 4013. Other materials are allowed. containing mainly calcium sulfate, according to the relevant regulatory documentation;

Granulated blast-furnace slags according to GOST 3476. The content of aluminum oxide A1 2 0 3 in slags for the manufacture of cements TsEM 11 / A-SH SS and TsEM 11UA-K SS should be no more than 8%, in slags for the manufacture of cements CEM I / V-Sh SS and CEM W/A SS - no more than 12;

Pozzolana or microsilica according to current regulations.

5.2.2 Active mineral additives must comply with the requirements given in subparagraph S.2.2.2 of GOST 31108.

5.2.3 Materials used as auxiliary components must comply with the requirements for these materials given in clause 5.2.3 of GOST 31108.

5.3 Packaging

Cement packaging - according to GOST 30515.

5.4 Marking

Cement marking - according to GOST 3CS15

b Safety requirements

6.1 Specific effective activity of natural radionuclides А, f f in cement should not exceed 370 Bq/xg. and mineral additives used in the manufacture of cement - no more than 740 Bq / kg.

6.3 It is not allowed to introduce technological or special additives into cement that increase the hazard class of cements.

7 Acceptance rules

7.1 Acceptance of cement, including acceptance in the stream, is carried out in accordance with GOST 30515 with the additions given in table 5.

Table 5

Name indicator	minor defect
	Classes and subclasses of accuracy

Compressive strength. MPa (lower limit), not less, aged:


Beginning of setting, min. not oanwe
The uniformity of the change in volume (esshioenie). mm. no more	Minor defects are not allowed

CEM ll/A-W SS CEM ll/B-W SS CEM ll/A-P SS CEM II/A-K SS
CEM Sh "ASS

7.2 Each batch of cement or part thereof supplied to one address must be accompanied by a quality document in accordance with GOST 30515.

8 Confirmation of conformity of cement quality level

8.1 Assessment of compliance of the quality level with the requirements of this standard is carried out in accordance with GOST 30515 with the additions given in table 6.

Table 6

Name of indicator	type of cement	Statistical method for confirming the level of quality
Name of indicator	type of cement	Variable estimation	Acceptance score
The content of C% A in the clinic
Sum C "A + CiAF in clink
	CEM 1 SS UEM II SS
Compressive strength
Seo (VI) oxide content SO,
Beginning of setting
Uniformity of volume change (expansion)
The material composition of cement
The quality level is assessed. There is no quality assessment.

9 Test methods

9.1 Physical and mechanical properties of cements are determined according to GOST 30744.

9.2 Chemical characteristics of clinker, cement and materials used in their production. determined according to GOST 5382.

С>А (ЗСа0А1 2 0 3) = 2.65 (А1 g 0 3 - 0.64 Fe 0 3).

C AF (4СаО■ AI203 Fe203) = 3.04 Fe 2 0 3 .

R 2 0 = Na z O + 0.658 KgO.

9.4 The material composition of cements is determined in samples taken at the manufacturer, according to accepted certified methods.

9.5 The specific effective activity of natural radionuclides A>s>t> in cement is determined according to GOST 30108. Tests are performed periodically in accredited testing laboratories.

10 Transport and storage

Transportation and storage of cements is carried out in accordance with GOST 30515.

11 Manufacturer's warranties

Manufacturer's warranties - in accordance with GOST 30515.

Cements, depending on the requirements for concrete, are recommended to be used in accordance with Table A.1.

Table A.1

Special requirements for concrete	type of cement
Special requirements for concrete		CEM 11/A-Sh SS CEM 11/V-Sh SS	CEM 11/A-P SS CEM II/A-K SS	CEM HI/A SS
Corrosion resistance when exposed to environments aggressive in terms of sulfate content	All cements can be used
Corrosion resistance when exposed to environments aggressive in terms of sulfate content, with simultaneous systematic freezing and thawing and / or moistening and drying			Permissible, based on test results, strength classes and subclasses 32.56 and 42.5N
Corrosion resistance when exposed to environments that are aggressive in terms of the content of sulphates. and low heat dissipation is required

UDC 691.54:006.354 MKS 91.100.10 NEQ

Keywords: sulfate-resistant cements, technical requirements, acceptance rules and quality level assessment, test methods

Signed for publication on 11/01/2014. Format 60x84V#.

Uel. oven l. 1.40. Circulation 50 eq. Zach. 4461

Prepared on the basis of the electronic version provided by the developer of the standard

FSUE "STANDARTINFORM"

123995 Moscow, Granatny per., 4.

In the Russian Federation, GOST R 51795 “Cements. Methods for determining the content of mineral additives»

In the Russian Federation, sulfa-resistant cement used in concrete for transport purposes. must also comply with the requirements of GOST R 55224-2012 “Cements for transport construction. Specifications".

INTERSTATE COUNCIL FOR STANDARDIZATION, MET ROL LIGHTS AND CERTIFICATION

INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION

INTERGOVERNMENTAL IMPACT STANDARD

Official edition

(EN 197-1:2011,NEQ) (EN 197-2:2000,NEQ)

standard form

Debate lov not

Objectives, basic principles and basic order of work on interstate standardization are established GOST 1.0-92"Interstate Standardization System Basic Provisions" and GOST 1.2-2009“Interstate standardization system Interstate standards, rules and recommendations for interstate standardization Rules for development, adoption; application, renewal and cancellation

About the standard

1 DEVELOPED BY Firla CEMISCON LLC

2 INTRODUCED by the Technical Committee for Standardization TC 465 "Construction"

3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Minutes No. 44-2013 dated November 14, 2013)

4 This standard complies with the following European regional standards: EN 197-1:2011 Cement - Part 1: Composition, specification and confoiming criteria for common cements, EN 197-2: 2000 Cement - Part 2: Confonmtyevaluation (Cement Part 2: Conformity assessment) regarding the classification of cements by substance of a different composition and strength

5 By order of the Federal Agency for Technical Regulation and Metrology dated June 11, 2014 No. 653-st, the interstate standard GOST 22266-2013 was put into effect as the national standard of the Russian Federation from January 1, 2015.

Information about changes to this standard to the general public in the annual information index "National Standards", and the text of changes and amendments - in the monthly information index "National Standards * In case of revision (replacement) or cancellation of this standard, the corresponding notice will be published in monthly informationионном указателе «Национальные стандарты*. Соответствующая информазщя, уведомление и тексты размещаются также в информационной системе общего пользования - на офшщальном сайте Федерального агентства по техническому регулированию иметрологгш в сети Интернет!}

In the Russian Federation, this standard cannot be fully or partially reproduced, replicated and distributed as an official publication without the permission of the Federal Agency for Technical Regulation and Metrology II

GOST 22266-2013

1 area of use............................................... ...................

3 Terms and definitions .......................................................... ..............

4 Classification and symbols ..................................................

5 Specifications .................................................................. .............

6 Safety requirements............................................................... ..........

7 Rules for acceptance ............................................... .........................

8 Confirmation of the conformity of the cement quality level.......

9 Test methods............................................................... ....................

Yu Transportation and storage .................................................................. .

And Manufacturer's Warranty .......................................................... ...............

sulphate-resistant cements ...............................

INTERSTATE STANDARD

SULFATE-RESISTANT CEMENTS Specifications

Sulphate-resistant cements. Specifications

Introduction date -2015-01-01

1 area of use

This standard uses normative references to the following interstate standards:

GOST 3476-74 Blast-furnace and electrothermophosphorus granulated slags for cement production

GOST 4013-82 Gypsum and gypsum anhydrite stone for the production of binders Specifications

GOST 5382-91 Cements and materials for cement production. Methods of chemical analysis

GOST 6613-86 Grids woven wire with square cells. Specifications

GOST 30108-94 Construction materials and products. Determination of specific effective activity of natural radionuclides

Official edition

GOST 22266-2013

GOST 30515-2013 Cements General specifications GOST 30744-2001 Cements. Test methods using

polyfractional sand

GOST 31108-2003 Cements for general construction. Technical conditions

Note - When using this standard, it is advisable to check the validity of reference standards in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet or according to the annual information index "National Standards", which was published as of January 1 of the current year, and on issues of the monthly information index "National Standards" for the current year. If the reference standard is replaced (modified), then when using these standards, you should be guided by the replacing (modified) standard. If the referenced standard is canceled without replacement, the provision in which the reference to it is given applies to the extent that this reference is not affected.

3 Terms and definitions

This standard uses terms and definitions according to GOST 30515.

4 Classification and designations

4.1 Classification of cements by types, classes and subclasses of strength must comply with GOST 30515 with the additional designation of sulfate resistance "C C" and table 1 of this standard

4.2 According to the material composition, cements are divided into types:

CEMI SS - sulfate-resistant Portland cement;

CEM P / A SS and CEM P / V SS - sulphate-resistant Portland cement with mineral additives,

CEM Sh / A SS - sulfate-resistant slag about Portland cement ment.

4.3 Types, classes and subclasses of strength of sulfate-resistant cements, as well as additives allowed for use - the main components of cement are indicated in table 1

GOST 22266-2013

Table 1

Name	type of cement	Applicable strength classes and subclasses	Permitted mineral additives - main components
Sulfate ost oy Portland cement		32.5N, 32.5B, 42.5N, 42.5B	Not allowed
Sulfate ost oy Portland cement with mineral additives	CEM I/A-SH S S CEMI/V-W S S	32.5N; 32.5B; 42.5N	Blast furnace granulated slag
	CEM I/A-P S S		Pozzolana
	CEM I / A-K (Sh-P) SS CEM I / A-K (Sh-P MK) SS		A mixture of slag with pozzolana or microsilica
Sulfate ost oy slag-land cement	CEM W/A SS	32.5N; 32.5B; 42.5N	Blast furnace granulated slag

Note - Types, classes and subclasses of strength - according to GOST 31108.

4.4 Symbol of cement should consist of:

From the name of cement according to 4.2 and table 1;

Cement type designations according to table 1;

Strength class and subclass,

Sulfate resistance designations "SS";

Symbols of this standard.

An example of a symbol for sulfate-resistant Portland cement of strength class 42.5, fast-hardening:

The same symbol for sulfate-resistant Portland cement with the addition of pozzolana of strength class 32.5 is normally hard:

Sufato-resistant Portland cement with puzzopana CEM 11/A-P 32.5N

SS GOST22266-2013.

GOST 22266-2013

It is allowed to omit its name in the symbol of cement.

Symbol 1 example:

CEM142.5B SS GOST22266-2013.

Legend example 2:

CEMP/A-P32.5N SS GOST22266-2013.

Symbols for plasticized or hydrophobized cements should additionally include the designation of plasticization "PL" or hydrophobization "GF" placed before the number of this standard.

An example of a symbol for plasticized sulfate-resistant Portland cement of strength class 42.5 normally hardening.

Sulfate-resistant Portland cement CEM I 42.5N SS PL GOST 22266-2013 or CEM 142.5N SS PL GOST 22266-2013.

The same hydrofoil of other sulfate-resistant Portland cement with a slag content of 20% to 35%, strength class 32.5, normally hard:

Sufato-resistant Portland cement with donkey CEM 11/V-Sh 32.5N SS GF GOST22266-2013 or CEM1UV-Sh 32.5N SS GF GOST22266-2013.

The symbol of cement, in which the content of alkaline oxides R: 0 does not exceed 0.6% of its mass, is supplemented with the word "low-alkaline" or the designation "NShch".

An example of a symbol for sulfate-resistant Portland cement, strength class 32.5, fast-hardening, low-alkaline, plasticized:

CEM132.5V SS NShch PL GOST22266-2013.

GOST 22266-2013

5 Technical requirements

Cements must comply with the requirements of this standard and be produced according to technological documentation approved by the manufacturer

5.1 Character of acting

5.1.1 The clinker used in the production of cement, in terms of chemical and calculated mineralogical composition, must comply with the requirements given in Table 2.

Table 2 In percent of the mass of clinker

5.1.2 Cement in terms of chemical composition must comply with the requirements

the values given in table 3.

Table 3 As a percentage of the mass of cement

ending /publish 3

* The requirement for the content of alkali oxides in cement is applied by agreement between the supplier and the consumer

5.1.3 It is allowed to introduce additives into all types of cements - auxiliary components that meet the requirements of GOST 31108. At the same time, in cements of the TsEM P and TsEM Sh types, the total content of additives - the main and auxiliary components should not exceed that specified in Table 1 of GOST 31108.

5 14 By agreement between the supplier and the consumer, it is allowed to introduce plasticizing additives into the cement during grinding in an amount of not more than 0.5% of the mass of cement in terms of the dry matter of the additive. Plasticizing additives should not be used if they do not combine well with super- or hyper-plasticizers introduced into the concrete or mortar mixture during their manufacture to reduce water demand and / or increase the survivability of these mixtures.

5.1.5 To protect against the effects of moisture and CQ> air and extend the shelf life of cement, it is allowed to introduce water-repellent additives into the cement during grinding in an amount of not more than 0.3% of the mass of cement

GOST 22266-2013

in terms of the dry matter of the additive. Hydrophobized cement should not absorb water within 5 minutes from the moment a drop of water is applied to the surface of the cement.

5.1.6 In the production of cement, in order to intensify the grinding process, it is allowed to introduce technological additives that do not impair the quality of cement, in an amount of not more than 0.5, organic additives - not more than 0.1% of the mass of cement in terms of the dry substance of the additive. At the same time, the total content of all types of organic additives introduced into cement should not exceed 0.5%.

5.1.7 The compressive strength of cement of the appropriate class and strength subclass is given in table 4.

Table 4

5.1.8 The cement shall pass the test for uniform volume change. The expansion of the specimens shall not exceed 10 mm.

GOST 22266-2013

5.1.9 In terms of the start of setting, cements must comply with the requirements of GOST 31108 for the corresponding strength classes and subclasses.

5.1.10 The fineness of cement grinding, determined by the specific surface area by the air permeability method, must be at least 250 lb/kg. For cements containing pozzolana additives, the fineness of grinding is determined by the residue on a sieve with mesh No. 009 according to GOST 6613. The residue on the sieve should not be more than 10% of the mass of the sieved sample. It is allowed to carry out determinations on a sieve with mesh No. 008 according to GOST 6613. The residue on the sieve No. 008 should not be more than 12% of the mass of the sieved sample

5.2 Material requirements

5.2.1 For the manufacture of cements, the following are used:

Portland cement clinker of normalized composition in accordance with the requirements given in table 2;

Gypsum or gip with anhydrite stone according to GOST 4013 It is allowed to use other materials containing mainly calcium sulfate, according to the relevant regulatory documentation,

Granulated blast-furnace slag according to GOST 3476. The content of aluminum oxide AlO3 in slags for the manufacture of cements CEM P / A-Sh SS and CEM P / A-K SS should be no more than 8%, in slags for the manufacture of cements CEM P / V-Sh SS and CEM Sh / A SS - no more than 12;

Pozzolana or microsilica according to current regulations

GOST 22266 cements general specifications. Cement mortar for brick laying

GOST

22266-

2013

SULFATE-RESISTANT CEMENTS

Specifications

Foreword

1 area of ​​use

2 Normative references

4 Classification and designations

6 Safety requirements

7 Acceptance rules

8 Confirmation of conformity of cement quality level

9 Test methods

10 Transport and storage

What mortar for laying bricks?

According to the enriched composition and filler, one can judge the merits of the solution:

GOST indicators for density:

Purpose of the solution

Mixtures for masonry and their characteristics

How to knead the masonry mortar with your own hands?

For the composition, the following components should be prepared:

Mixing methods

Consumption of masonry mortar

Lime mixtures

cement mortars

Simple masonry mortar

Difficult styling solution

Component ratio

Solution mobility

Types of compositions

Description of main components

Characteristics and proportions of various solutions

Lime

Cement and cement-lime

Cooking technology

SULFATE-RESISTANT CEMENTS

Specifications

1 area of use