GOST 30515 13 cements general specifications. "cements. general specifications"

Today, more and more different types of cement are produced. For each of them, its own standard has been developed, according to which it is possible to determine all of its specifications, composition, scope and test methods.

According to the specified standard, cement can be classified into types such as general construction and special.

General cements

According to the type of cement used in obtaining the material, the clinker is subdivided on the basis of:

• Portland cement clinker;
• alumina clinker;
• sulfoaluminate clinker.

The composition of GOST 30515 2013 cement may contain the following components:

• chlorine ion not more than 0.1%;
• sulfur oxide (VI) not less than 1.0;
• gypsum - no more than 5%.

But what cement is made of and what it looks like, you can see

Material test methods involve the following actions:

Portland cement and slag Portland cement

This standard contains all the information on the properties of Portland cement clinker based cement. 1017885 contains all technical requirements for the production of material, test methods, marking, transportation.

The classification of cement 10178 85 can be based on its constituent components. In this case, there are:

• Portland cement, which contains no mineral additives;
• Portland cement with additives, their volume does not exceed 20%;
• slag Portland cement with the addition of fine slag, the content of which does not exceed 20%.

According to the compression tests carried out, the cement was tested for 28 days.

As a result, we managed to get the following brands:

• Portland cement - 400, 500, 550 and 600;
• slag Portland cement - 300, 400 and 500;
• fast-hardening portland cement - 400 and 500;
• fast-hardening slag Portland cement - 400.

The hardening process for cement 10178 85 occurs after 45 minutes, and the final hardening - after 10 hours from the beginning of mixing.

Test methods are carried out according to the following plan:

General construction

To obtain such a material, Portland cement clinker, mineral components, gypsum, as well as materials containing calcium sulfate are used.

The finished product can be subjected to the following research methods:

Sulfate resistant

The presented material is used to obtain structures made of reinforced concrete and concrete that can withstand corrosion and aggressive environments.

When obtaining sulfate-resistant Portland cement with mineral components in accordance with GOST 22266 94, a mixture of slag and pozzolana is used, but their volume should not exceed 20%. Plasticizers can be added to the composition of the material, which will give strength to the finished product. The setting process should come after 45 minutes, but no later than 10 hours from the moment of mixing.

Control methods include:

1. Determination of the physical and mechanical properties of the material is carried out according to 30744.
2. The chemical formula of cement is determined according to 5382.

But how much cement is needed per 1 cube of concrete, you can read

30515 97 state standard

For such material, the following control methods are used:

Backfill

This standard defines the main characteristics of oil well cements. At the manufacturing plant, tests are carried out for strength, spreadability, consistency, duration of hardening, water separation.

To carry out a strength test, a form with dimensions of 50x50x50 mm is used. Its edges must be clean and treated with a small amount of machine oil. But the base of the mold is treated with a temperature-resistant grease to impart tightness. But what is the bulk density of cement m400, you can find out

Cement GOST 26798.2 96 is sent to the prepared form and tamped using a ramming rod. After the first layer has been laid and carefully tamped, the second layer is applied and again subjected to the same tests. Remove unnecessary dough with a knife.

The mold with the samples is covered with a metal plate, which is then attached so that no water gets inside. The whole product is sent by a thermostat, preheated to a temperature of 60 degrees. The sample holding process lasts 7 hours and 15 minutes. When time has passed, the molds are taken out of the thermostat and marked.

Aluminous

Such material is presented in the form of finely ground high-alumina blast-furnace slag and gypsum. When the cement is tested for 28 days, it should change in volume evenly during the hardening process. Concretes and mortars obtained from this material have high water resistance. But how much cement per 1 m3 of concrete m200 is needed, the information will help to understand

To determine the strength finished product according to GOST 310-69, samples are sent to molds, and for storage in a bathroom with a hydraulic seal. Then the molds are moved into water for a day. To determine the uniformity of the volume change, it is necessary to take pellet samples and send them to water for 27 days.

According to the established standard, technical requirements are determined that must be adhered to in the manufacture of alumina materials. They are used to obtain fast-hardening and heat-resistant concretes and mortars.

Control methods assume the following:

1. Determination of the physical and mechanical properties of the material is carried out in accordance with GOST 30744.
2. The chemical formula of cement is determined in accordance with GOST 5382.
3. To determine the specific effective activity of natural radionuclides in cement, GOST 30108 is used.

But what should be the cement-lime mortar for plaster.

The requirements established by the standard make it possible to determine the composition of the cement, its strength indicators, waterproof level. These data are very important in the preparation of various mortars used in the field of construction.

Interstate standard GOST 30515-2013

"CEMENT. GENERAL TECHNICAL CONDITIONS"

(put into effect by order of the Federal Agency for technical regulation and metrology of June 11, 2014 N 654-st)

Cements. General specifications

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 development, adoption, application , updates and cancellations "

1 area of ​​use

This standard applies to all types of cements and establishes:

Terms with corresponding definitions;

Classification;

General technical requirements;

Safety requirements;

Sampling requirements for cement quality control;

Acceptance rules;

Compliance criteria;

Rules for assessing the conformity of the quality of cements to the requirements of regulatory documents for specific types of cements;

Test methods;

Transportation and storage requirements;

Manufacturer's warranty.

2 Normative references

This standard uses normative references to the following interstate standards:

GOST 8.579-2002 State system ensuring the uniformity of measurements. Requirements for the number of prepackaged goods in packages of any kind during their production, packaging, sale and import

GOST 1581-96 Oil well portland cements. Technical conditions

GOST 2226-2013 Bags made of paper and combined materials. Are common technical conditions

GOST 4013-82 Gypsum and gypsum anhydrite stone for the production of binding materials. Technical conditions

GOST 5382-91 Cements and materials for cement production. Chemical analysis methods

GOST ISO 9001-2011 Quality management systems. Requirements

GOST 9078-84 Flat pallets. General specifications

GOST 14192-96 Marking of goods

GOST 15467-79 Product quality management. Basic concepts. Terms and Definitions

GOST 15895-77 * Statistical Methods quality management. Terms and Definitions

GOST 16504-81 System of state product testing. Product testing and quality control. Basic terms and definitions

GOST ISO / IEC 17025-2009 General requirements to the competence of testing and calibration laboratories

GOST 25951-83 Polyethylene shrink film. Technical conditions

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

GOST 30744-2001 Cements. Test Methods Using Polyfractional Sand

GOST 31108-2003 General construction cements. Technical conditions

NOTE When using this standard, it is advisable to check the validity of the referenced standards in information system common use- 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 is published as of January 1 of the current year, and according to the issues of the monthly information index" National Standards "for the current year. canceled without replacement, the provision in which the link to it is given applies to the extent that does not affect this link.

3 Terms and definitions

The terms that should be used in regulatory documents, technical and technological documentation for cements, and their definitions are given in Appendix A.

4 Classification

4.1 Cements are classified according to the following main characteristics:

By appointment;

Clinker type;

Material composition;

Compressive strength;

Hardening speed;

Setting times.

4.2 By purpose, cements are subdivided:

For general construction;

Special.

4.3 By type of clinker, cements are subdivided into those made on the basis of:

Portland cement clinker;

Alumina (high-alumina) clinker;

Mixtures of Portland cement and sulfoaluminate (sulfoferritic) clinker.

4.4 By material composition, cements based on Portland cement clinker are divided into types characterized by different kind and the content of mineral additives:

Type I - Portland cement containing only Portland cement clinker as the main component of the material composition;

Type II / A - Portland cement with mineral additives containing Portland cement clinker and a mineral additive or a mixture of mineral additives in an amount from 6% to 20% as the main components;

Type II / B - Portland cement with mineral additives containing Portland cement clinker and slag as the main components in an amount from 21% to 35%;

Type III - slag Portland cement containing Portland cement clinker and granulated blast furnace, electrothermophosphoric or fuel slag in an amount of 36% to 65% as the main components;

Type IV - pozzolanic cement containing Portland cement clinker and pozzolana as the main components in an amount of 21% to 35%;

Type V - composite cement containing Portland cement clinker as the main components and a mixture of slag and pozzolana and / or fly ash in an amount from 22% to 60%.

The values ​​of the permissible content of mineral additives in cement are referred to the sum of the main and auxiliary components of cement (except for gypsum stone or other materials containing mainly calcium sulfate), taken as 100%.

NOTE - When determining the content of an additive, the result is rounded to the nearest whole number **;

Type I-C - sulphated Portland cement containing Portland cement clinker as the main component, sulfoaluminate (sulfoferrite) clinker as an auxiliary component in an amount of not more than 5%;

Type II-C sulfated Portland cement containing Portland cement clinker as the main components, sulfoaluminate (sulfoferrite) clinker in an amount of 6% to 20%.

The name and content of mineral additives in cement and types of cements can be additionally specified in regulatory documents for specific types of cements or a group of specific products.

4.5 Compressive strength cements are subdivided into classes: 22.5; 32.5; 42.5; 52.5. In the regulatory documents for specific types of cements, it can be established additional classes strength or restrictions on the applicable classes. For some special types of cements, taking into account their purpose, it is allowed to set only one strength class or set strength values ​​that differ from those indicated above.

4.6 By the speed of hardening, general construction cements are subdivided into strength subclasses:

Normally hardening (N) with normalization of strength at the age of 2 (7) and 28 days;

Fast-hardening (B) with normalization of strength at the age of 2 days, increased in comparison with normal-hardening, and 28 days;

Slow-hardening (M) with normalization of the initial strength at the age of 7 (2) days, reduced in comparison with normal-hardening cements, and 28 days.

4.7 According to the setting time, cements are subdivided:

On slow-setting - with a normalized time for the onset of setting more than 2 hours;

Normally setting - with a normalized time for the onset of setting from 45 minutes to 2 hours;

Fast-setting - with a normalized setting time of less than 45 minutes.

4.8 The classification of special cements by purpose is established in the regulatory documents for these cements.

4.9 The classification for the purpose of special cements is established in the regulatory documents for these cements.

4.10 It is recommended to include recommendations on rational areas of application of cements in regulatory documents for cements of specific types or a group of specific products.

Nowadays, a fairly large number of different types of cement are produced. They may differ for some of the additives included in the composition, but each type of cement base must comply with the approved quality.

In our country, this is GOST 30515 2013, which includes general terms and Conditions, as well as characteristic details and also composition, scope of their application.

Quality standard

GOST 30513 2015 “Cements. General technical conditions ”was approved at the end of December 2013. It was adopted as an interstate standardization body, which includes many countries of the former USSR.

In particular, the national bodies of not only Russia, but also Belarus, Armenia, Moldova, Tajikistan, Azerbaijan and other countries voted for the adoption of this document.

This quality standard was introduced instead of GOST 30515 97 “Cements. General technical conditions ", therefore it can be considered the most relevant regulation today.

INTERSTATE COUNCIL FOR STANDARDIZATION OF METROLOGY AND CERTIFICATION

INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION

INTERSTATE GOST

STANDARD 30515-2013

General specifications

Official edition

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

Moscow Standardnfor m 2014

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 "

Information about the standard

1 DEVELOPED by LLC Firm "TSEMISKON"

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

3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Protocol No. 63-P dated December 27, 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: 2011 Cement - Part 2: Confo unity evaluation (Cement. Part 2: Confirmation of conformity) in terms of the classification of cements, test methods, quality assessment rules, criteria for conformity of the quality of cements to regulatory requirements.

Translation from in English(ate).

Degree of Compliance - Non-Equivalent (NEQ)

5 Order of the Federal Agency for Technical Regulation and Metrology dated June 11, 2014 No. 654-st, the interstate standard GOST 30515-2013 was put into effect as a national standard Russian Federation from January 1, 2015

Information about changes to this standard is published in the annual informational index "Naryunalg standards * and the text of changes and amendments is published in the monthly informational decree" National standards ". In case of revision (replacement) or cancellation of this standard, the corresponding notice will be disclosed in the monthly information index "National Standards". Appropriate information. Notices 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

F Standardfork; 2014 In the Russian Federation, this standard cannot be fully or partially reproduced and distributed as an official publication without the permission of the Federal Agency for Technical Regulation and Metrology.

GOST 30515-2013

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

2 Regulatory from the rash .............................................. ......................................

3 Terkins and definitions .............................................. .................................

4 Classification ................................................ ..............................................

5 General technical requirements .............................................. .............

5.1 Features ................................................ .......................................

5.2 Requirements for materials ............................................... ......................

5.3 Packaging ................................................ ..................................................

5.4 Marking ................................................ .............................................

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

7 Sampling ............................................... ..................................................

7.1 General Provisions...................................................................................

7 .3 Checking the homogeneity of the pooled (laboratory) sample

7.4 Procedure for sampling and sample preparation ............................................ .......

7.5 Packaging, labeling and storage of samples ....................................

7 .6 Certificate of sampling ............................................ ..........................................

8 Acceptance rules ............................................... .................................

8 1 General .............................................. .....................................

8.2 Acceptance ................................................ .................................................. ...

8 3 Assessment of the level of qualities ............................................ ..............................

8.4 Quality control of cement by consumers and supervisors

S 5 Confirmation of conformity .............................................. ..................

9 Method of use ............................................ ..........................................

10 Transport and storage .............................................. .....................

10.1 Transport ................................................ ...............................

10.2 Storage ................................................ ................................................

11 Declaration of Conformity to Safety Requirements .......................

12 Manufacturer's Warranties .............................................. ...................................

Appendix A (mandatory) Terms and definitions Appendix B (mandatory) Form of the manufacturer's sampling certificate

GOST 30515-3013

Appendix B (normative) Form of the act of sampling in any organization,

other than the manufacturer ................................................ ......................

Appendix D (mandatory) Receiving cement in the flow ...................................

Appendix D (recommended) Form of the log of acceptance tests ....................................... ...................................

niy when accepting in the stream ............................................. ...............

Appendix I (mandatory) Assessment of the level of cement quality by variables ....................................... ...................................

Appendix K (normative) Assessment of the representativeness and accuracy of cement tests at the enterprise ..................................... .............

INTERSTATE STANDARD

CEMENTES General technical conditions

Cements. General specifications

Date of introduction - 2015-01-01

1 area of ​​use

This standard applies to all types of cements and establishes:

Terms with corresponding definitions,

Classification,

General technical requirements,

Safety requirements,

Sampling requirements for cement quality control,

Acceptance rules;

Compliance criteria,

Rules for assessing the conformity of the quality of cements to the requirements of regulatory documents for specific types of cements,

Test methods;

Transportation and storage requirements,

Manufacturer's warranty.

This standard uses normative references to the following interstate standards:

GOST 8.579-2002 State system for ensuring the uniformity of measurements. Requirements for the number of prepackaged goods in packages of any kind during their production, packaging, sale and import

GOST 1581-96 Portland cement plugs. Technical conditions

Official edition

GOST 30515-2013

GOST 2226-2013 Bags made of paper and combined materials. General specifications

GOST 4013-82 Gypsum and gypsum anhydrite stone for the production of binding materials. Technical conditions

GOST 5382-91 Cements and materials for cement production. Chemical analysis methods

GOST ISO 9001-2011 Quality management systems Requirements GOST 9078-84 Flat pallets. General technical conditions GOST 14192-96 Marking of goods

GOST 15467-79 Product quality management Basic concepts Terms and definitions

GOST 15895-77 * Statistical methods of quality management Terms and definitions

GOST 16504-81 System of state product testing. Product testing and quality control. Basic terms and definitions

GOST ISO / IEC 17025-2009 General requirements for the competence of testing and calibration laboratories

GOST 25951-83 Polyethylene shrink film Specifications

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

GOST 30744-2001 Cements. Test Methods Using Polydiffraction Sand

GOST 31108-2003 General construction cements Specifications

Note - When using this standard, it is advisable to check the operation 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 of the year, and by the issues of the monthly information index "National Standards" for the current year. If the reference standard is replaced (changed), then when using this standard, guidance follows

15 of the Russian Federation are in force GOST R 50779.10-2000, GOST R 50779.11-2000

GOST 30515-2013

be a superseding (modified) standard If the referenced standard is canceled without replacement, then the provision in which the reference is made to it shall apply in the part that does not affect this reference.

3 Terms and definitions

The terms that should be used in regulatory documents, technical and technological documentation for cements, and their definitions are given in Appendix A.

4 Classification

4.1 Cements are classified according to the following main characteristics:

By appointment,

Clinker type;

Material composition,

Compressive strength,

Hardening speed,

Setting times.

4.2 By purpose, cements are subdivided

General construction,

Special.

4.3 By type of clinker, cements are subdivided into those made on the basis of:

Portland cement clinker,

Alumina (high-alumina) clinker,

Mixtures of Portland cement and sulphonated (sulfoferritic) clinker

4.4 According to the material composition, cements based on Portland cement clinker are divided into types characterized by different types and contents of mineral additives:

GOST 30515-2013

Type I - Portland cement containing only Portland cement clinker as the main component of the material composition;

Type P / A - Portland cement with mineral additives, containing Portland cement clinker and a mineral additive or a mixture of mineral additives in an amount from 6% to 20% as the main components,

Type P / V - Portland cement with mineral additives, containing Portland cement clinker and slag as the main components in an amount from 21% to 35%;

Type III - slag portpand cement containing Portland cement clinker and granulated blast-furnace, electro-thermophosphate or fuel slag as the main components in an amount from 36% to 65%,

Type IV - pozzolanic cement containing Portland cement clinker and pozzolana as the main components in an amount of 21% to 35%,

Type V - composite cement containing Portland cement clinker as the main components and a mixture of slag and pozzolana and / or fly ash in an amount from 22% to 60%

The values ​​of the permissible content of mineral additives in cement are referred to the sum of the main and auxiliary components of cement (except for gypsum stone or other materials containing mainly calcium sulfate), taken as 100%.

NOTE - When determining the content of the additive, the result is rounded to the nearest whole number *,

Type 1-C - sulphated Portland cement containing Portland cement clinker as the main component, sulfoaluminate (sulfoferrite) clinker as an auxiliary component in an amount of not more than 5%,

* In the Russian Federation, the content of the additive is determined in accordance with GOST R 51795-2001.

GOST 30515-2013

Type P-S sulfated Portland cement containing Portland cement clinker as the main components, sulfoaluminate (sulfoferrite) clinker in an amount of 6% to 20%

The name and content of mineral additives in cement and types of cements can be further specified in the regulatory documents for specific types of cements or a group of specific products.

4.5 Compressive strength cements are subdivided into classes: 22.5; 32.5; 42.5; 52.5. In the regulatory documents for specific types of cements, additional strength classes or restrictions on the classes used may be established. For some special types of cements, taking into account their purpose, it is allowed to set only one strength class or set strength values ​​that differ from those indicated above.

4.6 By the speed of hardening, general construction cements are subdivided into strength subclasses:

Normally hardening (N) with normalization of strength at the age of 2 (7) and 28 days,

Fast-hardening (B) with normalization of strength at the age of 2 days, increased in comparison with normal flax-hardening, and 28 days;

Slow-hardening (M) with normalization of the initial strength at the age of 7 (2) days, reduced in comparison with normal-hardening cements, and 28 days.

4.7 According to the setting time, cements are subdivided:

On slow-setting ones - with a normalized time for the onset of setting more than 2 hours,

Normally setting - with a normalized setting time from 45 minutes to 2 hours,

Fast setting - with a normalized setting time

less than 45 min.

GOST 30515 - 3013

4.8 The classification of special cements by purpose is established in the regulatory documents for these cements.

4.9 The classification for the purpose of special cements is established in the regulatory documents for these cements.

4.10 It is recommended to include recommendations on rational areas of application of cements in regulatory documents for specific types of cements or a group of specific products.

5 General technical requirements

Cements must comply with the requirements of this standard and regulatory documents for specific types of cements or a group of specific products and must be manufactured according to the technological documentation approved by the manufacturer.

5.1 Features

5.1.1 Quality indicators established in regulatory documents for specific types of cements are subdivided into mandatory and recommended.

5.1.2 The nomenclature of mandatory quality indicators used in regulatory documents for specific types of cements is shown in Table 1.

Table 1 - Nomenclature of mandatory quality indicators

GOST 30515-2013

End of table 1

5.1.3 Quality indicators, end of setting, specific surface area (fineness of grinding), mobility of cement-sand mortar, spreadability of cement paste, hydrophobicity, content of free calcium oxide, alkaline oxides, insoluble residue in clinker, weight loss on ignition in cement are recommended for inclusion in regulatory documents for specific types of cements. If these indicators are included in the relevant regulatory document, they become mandatory when it is applied.

5.1.4 The standardized values ​​of the mandatory and recommended quality indicators are established in the regulatory documents for specific types of cements or a group of specific products, depending on their purpose, taking into account the requirements of this standard.

GOST 30515-2013

5.2 Material requirements

For the production of cements are used:

Clinker made according to requirements technological regulations manufacturer. Clinker of normalized mineralogical composition, as well as with standards for chemical composition used in cases where it is provided for by regulatory documents for special cements,

Gypsum stone in accordance with GOST 4013. It is allowed to use other materials containing mainly calcium sulfate, according to the relevant regulatory documents,

Mineral additives as the main or auxiliary component of cement in accordance with the relevant regulatory documents,

Technological and special additives that regulate the basic properties of cement, in accordance with the relevant regulatory documents

Additives should not impair the properties of cement or concrete and mortar based on it.

Note - At the request of the consumer, plasticizing additives should not be added to the cement if they are combined with the super-iphyiperplasticizers used by the consumer. The latter must be specified in the agreement (contract).

5.3 Packaging

5 3.1 Cement is shipped with or without packaging.

5.3.2 For packing cement, apply:

Paper five- or six-layer bags according to GOST 2226 or paper bags of any layer according to the relevant regulatory or technical documents the quality indicators of which are not lower than the requirements established by GOST 2226;

Soft containers with an airtight liner or other

GOST 30515-2013

packaging that reliably protects cement from moisture and pollution, as well as from the effects of COE and air moisture, in accordance with the relevant regulatory documents

For small packaging, plastic cans, bags, as well as other packaging are used to ensure the safety of cement, in accordance with the relevant regulatory documents

5.3.3 The nominal net mass of a bag with cement should not exceed 50 kg, the capacity of a flexible container should not exceed 2 tons.

The deviation of the average net weight of cement downward should not exceed the limit values ​​established by GOST 8.579.

5.3.4 The average gross weight of a bag of cement is determined by weighing 20 bags selected at random from the lot and dividing the result by 20.

The average bag weight is determined by weighing 20 bags selected at random from a batch of bags obtained and dividing the result by 20.

The average net weight of cement in the bag is determined by subtracting the average weight of the bag from the average gross weight of the cement bag.

The deviation of the average net weight of cement in bags in a batch from the net weight indicated on the package should not be more than + 1.0; - 0.4%

5.3.5 The average net weight of the cement in the flexible container is determined by subtracting from the gross weight of the flexible container with the cement the average weight of the flexible container, determined similarly to the average weight of the paper bag.

The deviation of the average net weight of cement in a soft container from that indicated on the package should not be more than + 2.0; - 0.5%.

5.3.6 Net weight of cement in a separate package for small packaging should be [(3; 5) ± 0.05] kg, [(10; 20, 25) ± 0.3] kg.

GOST 30515-2013

5.4 Marking

5.4.1 Marking must be distinct and contain:

Manufacturer's name and trademark,

Mark of circulation on the market, if it is provided for by the legislation of the country of manufacture and (or) importer of cement,

Conditional designation of cement and (or) its full name in accordance with regulatory document;

Designation of a normative document in accordance with which cement is manufactured and supplied,

Average net weight of cement in a package or net weight of cement in a vehicle,

Conformity mark for the supply of certified cement (if provided by the certification system).

5.4.2 When cement is packed in bags, marking is applied to each bag in any part of it. When cement is packed in soft containers, the marking is applied to a label inserted into a special pocket on the soft container. It is allowed to apply marking with indelible paint on the side surface of the soft container

5.4.3 For small cement packaging, the marking is applied to a label that is glued to the package or applied directly to the package, or inserted between the outer and inner layers of the package (if the outer layer of the package is transparent). Each package of cement must have a brief instruction on its use, which can be applied to the package or attached to it.

5.4.4 When colored cement is supplied, a stripe of the corresponding color must be applied to the package and label

5.4.5 When supplying cement in small packaging, placed in a large container, the label is also attached to the container. At the same time, the number of packages in a container is additionally indicated on the label.

GOST 30515-2013

5.4.6 When forming transport packages from bags with cement, the top row of bags should be laid so that the markings on the bags are clearly visible. The packages of the upper row are additionally marked with transport markings in accordance with GOST 14192.

5.4.7 Each vehicle shall be provided with a label, which indicates all the information on 5.4.1 and additionally the number of the batch of cement and the date of shipment.

The label is attached to the vehicle in an accessible place in any way that ensures its safety during transportation and ease of reading, and when the cement is delivered by road, it is included in the shipping documentation handed over to the accompanying person or driver.

6 Safety requirements

6.1 The specific effective activity of natural radionuclides Af * in cement should not be more than 370 Bq / kg, and in materials used for the production of cement, for example, in mineral additives, not more than 740 Bq / kg.

6.2 The standards for specific types of cements must also indicate safety requirements confirming the compliance of products with the technical regulations in force in the country, as well as with the legislation of the country of manufacture and (or) the consumer of cement.

6.3 It is not allowed to introduce into the cement auxiliary components, technological and special additives that increase the hazard class of cement

7 Sampling

7.1 General

7.1.1 Sampling for production control is carried out in accordance with

in accordance with the manufacturer's technological documentation

7.1.2 Sampling for quality control of cement by a third party for inspection, certification and other types of tests is carried out only from a batch (part of a batch) accepted by the service technical control manufacturer

7.1.3 Test results of a sample taken in accordance with the requirements of this standard apply only to that batch (part of a batch) of cement from which the sample was taken. It is not allowed to extend the test results of a sample taken from a part of a lot to other parts of the same lot.

7.1.4 To control the quality of the manufactured cement, make up one combined sample from incremental samples taken from each controlled lot (part of the lot).

It is not allowed to make a combined sample from cement of different lots.

7.2 Equipment for sampling, mixing and separation of samples

7.2.1 For taking and mixing point samples and dividing the combined sample into parts (laboratory samples), use equipment and fixtures made of materials that do not react with cement.

It is not allowed to use equipment and fixtures made of aluminum or galvanized materials. Devices must be dry and clean.

If necessary, the equipment used and the sampling sites should be agreed by the interested parties before sampling.

7.2.2 For sampling of cement from containers, vehicles or packaging, the equipment and fixtures of any design used should provide:

Sampling at a specified depth of the cement layer or at a specified location

packaging,

GOST 30515-2013

Protection of the selected sample from mixing with the cement of the overlying layers when it is removed from the container or packaging

7.2.3 For sampling of cement from pipelines, samplers of any design should provide:

Sampling in equal parts at regular intervals established by the technological documentation, or continuously throughout the entire period of cement pumping through the pipeline,

Sampling only where flow uniformity across the cross section is achieved.

It is not allowed to install samplers in places where pipelines are bent, as well as near places where material is discharged from aspiration devices and in front of such devices.

7.2.4 Any equipment or fixture and procedures are used to mix the spot samples and separate the aggregated sample into parts to ensure the homogeneity of the cement in the aggregate sample or parts thereof.

7.3 Uniformity check of the pooled (laboratory) sample

7.3.1 To check the homogeneity of the combined sample, from each laboratory sample obtained by dividing the combined sample, or from different parts of the combined sample, take a weighed portion of cement weighing at least 100 g each, in which the content of oxides of calcium, silicon and sulfur (VI) is determined. A sample is recognized as homogeneous if the discrepancy between the results of the chemical analysis of two samples does not exceed twice the maximum repeatability error in accordance with GOST 5382 for each of the determined indicators. If an unsatisfactory result is obtained for at least one indicator, the averaging procedure of the combined sample should be corrected until a homogeneous sample is obtained.

GOST 30515-2013

7.3.2 Checking the homogeneity of cement over the cross-section of the pipeline is carried out once when choosing a place for installing the sampler, ensuring uniformity of cement characteristics over the entire cross-section of the pipeline.

7.3.3 The manufacturer shall check the homogeneity of the pooled or laboratory sample as necessary, but at least once a month. The check of the homogeneity of the consolidated sample of a batch of cement should be recorded in the acceptance test log or on electronic media, if the results of the acceptance tests are stored on such media.

7.3.4 When sampling for in-house quality control, inspection, certification or other tests, the homogeneity of cement in samples shall be checked only if required by one of the parties involved in the sampling

7.4 Sampling and sample preparation procedure

7.4.1 Sampling of spot samples of cement packed in bags, flexible containers or other containers, as well as from specialized vehicles when transporting cement without packaging, is carried out from at least five units of packages or vehicles selected at random

If the controlled mass of cement consists of five or less units of packages or specialized vehicles, a spot sample of approximately the same mass is taken from each of them.

7.4.2 From bags, flexible containers or other containers, a sample is taken from a depth of at least 15 cm, but not more than 15 cm from the bottom of the container (container). At a container depth of less than 30 cm, samples are taken from the middle of the layer.

Sampling from specialized vehicles when transporting cement without packaging is carried out from the flow of cement during its loading or unloading. It is allowed to take samples through the top hatch vehicle from a depth of at least 15 cm

GOST 30515-2013

7.4.3 When accepting a batch of cement in flow and at production control sampling is carried out from each cement mill operating in one silo during its filling at regular intervals established by the manufacturer's technological documentation, but not less than five times from each mill operating in the silo during its filling.

7.4.4 The mass of spot samples should be such that the mass of the combined sample, made up of them, was at least 20 kg when checking the quality of cement by the manufacturer, consumer and supervisory authorities and at least 30 kg when checking the quality of cement in case of complaints by the consumer

7.4.5 To prepare a pooled sample, all spot samples taken from one lot (part of a lot) are combined and thoroughly mixed manually or mechanically.

7.4.6 From the pooled sample prepared in accordance with 7.4.5, laboratory samples weighing about 8 kg each are obtained in the amount specified in 7.4.7 and 7.4.8.

Laboratory samples may be obtained using any type of sample divider.

7.4.7 During quality control of cement by the manufacturer, two laboratory samples are obtained from the combined sample: the first for testing in the manufacturer's laboratory, the second for storage with him for warranty period, established by a regulatory document or an agreement (contract) for the supply, in case it is necessary to carry out repeated tests.

7.4.8 When controlling the quality of cement by the consumer or by the supervisory authorities, three laboratory samples are obtained from the combined sample. The first sample is sent to an accredited testing laboratory third party, the second remains with the consumer or manufacturer, the third is stored with the manufacturer for at least three months

When controlling the quality of cement, in the event the consumer makes a complaint, three laboratory samples are obtained from the combined sample. The first

GOST 30515-2013

the sample is sent to an accredited third party testing laboratory, the second and third to the manufacturer and consumer.

7.4.9 Each laboratory sample obtained in accordance with 7.4.6 must be packed in accordance with 7.5 and, within three working days, excluding the day of collection, sent to the appropriate laboratory for testing.

7.5 Packaging, labeling and storage of samples

7.5.1 Packaging and storage of samples should ensure the preservation of the properties of the controlled cement. The container in which the samples are packed must be clean, dry, air- and moisture-proof and made of a material inert to cement.

7.5.2 Samples intended for testing in a third-party laboratory and remaining with the consumer or manufacturer are packed in an airtight container, sealed or sealed. The container is marked with the following information:

Manufacturer's name,

Conditional designation of cement and (or) name in accordance with the normative document,

Date and place of sampling;

Batch number, date of manufacture.

7.6 Sampling report

7.6.1 When controlling the quality of cement by the consumer, as well as for the purpose of carrying out certification, control and other tests, sampling is drawn up in an act with the obligatory inclusion of information in accordance with Appendix B or C. sampling.

7.6.2 When controlling the quality of cement, upon presentation by the consumer of claims, the sampling certificate is drawn up in accordance with the procedure