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prEN 196-5 Public enquiry

Comment end date 2026-11-05

Methods of testing cement - Part 5: Pozzolanicity test for pozzolanic cement

In this document, the pozzolanicity of a cement is assessed by comparing the concentration of calcium ion, expressed as calcium oxide, present in the aqueous solution in contact with the hydrated cement, after a fixed period of time, with the quantity of calcium ion capable of saturating a solution of the same alkalinity.

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prEN 196-19 Public enquiry

Comment end date 2026-10-13

Methods of testing cement - Part 19: Determination of the contribution of cement's alkalis

This document describes the method for determining the contribution of cement’s alkali to the alkali-silica reaction process that can occur in concrete or mortar containing aggregates potentially susceptible to alkali attack. The principle is to consider the alkalis from the insoluble part of the cement (generally associated with fly ash, for example, or pozzolans) and the alkali from the diluted part of the cement (generally associated with clinker, gypsum, granulated blast furnace slag, or limestone) [1]. This test method can be used in the framework of preventing the risk of alkali silica reaction [2].

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prEN 196-15 Public enquiry

Comment end date 2026-10-13

Methods of testing cement - Part 15 - Sulfate resistance - Flat prism method

This document describes test methods (reference and alternative) applicable to cast test specimens for evaluating the Sulftate Resistance (SR characteristic) of cements. Sulfate resistance means that these binders can be used in concrete bodies submitted to sulfate attacks. In these methods, the test is carried out under controlled exposure conditions using an increased concentration of sulfate solution. These test conditions are intended to accelerate external sulfate attack. The reference test method is adapted from the modified SVA test method (German Institute for Building Technology (DIBt), Expert Committee (SVA)): “Testing the Sulfate Resistance of Cements with pozzolanic main constituents”. The modified SVA test method is listed in European Assessment Document – EAD 150007-01-0301, Annex C. This test method is appropriate for various binders, in particular those with pozzolanic main constituents. The alternative test method is listed in European Assessment Document – EAD 150009-01-0301, Annex A. This test method is appropriate for CEM III/A cements.

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prEN 196-14 Public enquiry

Comment end date 2026-10-13

Method of testing cement - Part 14: Determination of tricalcium silicate (C3S), dicalcium silicate (C2S), tricalcium aluminate (C3A) and tetracalcium aluminoferrite (C4AF) of common cement and clinker

This document describes the analytical procedures used to determine the content of tricalcium silicate (C3S), dicalcium silicate (C2S), tricalcium aluminate (C3A) and tetracalcium aluminoferrite (C4AF) of cement starting from a chemical analysis on cement. The method can be applied on all common cements as defined on EN 197-1. This document also describes the calculation procedures for determining of tricalcium silicate (C3S), dicalcium silicate (C2S), aluminate (C3A) and tetracalcium aluminoferrite (C4AF) in the Portland cement clinker as defined in the EN 197-1. In both cases, for cement and clinker, the calculation method is based on the Bogue method assuming each phase has a pure composition. This is a conventional method, whereby the actual mineralogical composition can differ from the results obtained using this method. For the determination of the various chemical species of clinker, cement and basic-complexing residue (BCR) described in this document, the method is indicated in the relevant clause.

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prEN 196-16 Public enquiry

Comment end date 2026-10-13

Methods of testing cement - Part 16 - Sulfate resistance - Square prism method

This document describes a test method applicable to cast test specimens for evaluating the Sulfate Resistance (SR characteristic) of cements. Sulfate resistance means that these binders can be used in concrete bodies submitted to sulfate attacks. In these methods, the test is carried out under controlled exposure conditions using a defined concentration of sulfate solution. The chosen test conditions are intended to accelerate external sulfate attack. This test method is appropriate in particular for CEM III/A cements and other various binders, in particular those with pozzolanic main constituents. It is adapted from the CUR - NL - Civieltechnisch Centrum Uitvoering Research en Regelgeving (Centre for Civil Engineering Research and Codes) - Recommendation 48 - Suitability test for new cements for application in concrete. This test method is listed in European Assessment Document - EAD 150004-00-0301, Annex B.

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prEN 196-18 Public enquiry

Comment end date 2026-10-13

Methods of testing cement - Part 18: Determination of whiteness or colour of cement and clinker

This document describes a method for the determination of whiteness and the colour of common cements and clinkers. This method can be used to determine the whiteness of white cements defined in the EN 197-1. This document does not apply to colour measurements on cement-based formulated products or cement-based products. The method is based on the measurement of the CIE XYZ trichromatic coordinates and describes the mathematical procedure for converting these coordinates into the CIE 1976 (L*a*b*) colour space. NOTE Although the possible values of the L* parameter range from 0 to 100, this document applies to the range between 70 and 100 (photopic vision).

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prEN 196-17 Public enquiry

Comment end date 2026-10-13

Method of testing cement - Part 17: Determination glass content of granulated blast furnace slag as constituent for common cement

This document describes two equivalent test methods for determining the glass content in Granulated blast furnace Slag (GBS) as constituent for common cement as defined on EN 197-1. Method A - Method of determining the glass content of GBS by X-ray diffraction. Method B - Method of determining the glass content of GBS by polarized optical microscopy. The glass content (or glassy/amorphous phase) in GBS is the fraction of the material that lacks a crystalline structure, having solidified rapidly from the melt in the form of amorphous glass. It is usually expressed as a percentage (wt%) of the total slag. In the absence of a product standard or a specification in the product standard, the constituent is tested at the fineness of the intended use. Furthermore, these test methods are used in manufacturing control of cement constituents for assessing their conformity to the limit indicated in EN 197-1.

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prEN 196-7 Public enquiry

Comment end date 2026-10-13

Methods of testing cement - Part 7: Methods for sampling and sample preparation of common cement and its constituents

This document specifies the equipment to be used, the procedures to be applied and the requirements for sampling common cement and/or its constituent materials, representative of defined lots, for testing purposes. The same equipment and procedures can be used for other types of cement or materials; in some cases, modifications to the procedure are also permitted, provided that this document and/or the modifications are referenced in the relevant product standards. The provisions of this document are only applicable when samples of constituent of common cement are: a) required for evaluating the conformity of common cement or constituent of cement at the characteristics related to common cement, to cement constituents, to the release of dangerous substances to soil and ground water of common cement, and to environmental sustainability of common cement; or b) requested for checking a delivery or a lot with a standard, the provisions of a contract or the specification in an order. This document is applicable to the sampling of powders or bulk materials, whether they are: c) contained in silos; d) contained in bags, canisters, drums or any other packages; e) transported in bulk in road vehicles, railway wagons, ships, etc. NOTE The requirements of this document can also, by agreement between the parties, be followed for acceptance inspections for all non-standardized hydraulic binders.

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prEN 196-13 Public enquiry

Comment end date 2026-10-13

Methods of testing cement - Part 13: Effective alkali content

This document specifies the apparatus and procedure for determining the effective alkali content of cements and other hydraulic binders. The method determines the effective alkali content after 28 days of hydration by extracting pore water from cement stone and determining the concentration of sodium and potassium (method A) or hydroxyl ions in the solution (method B).

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prEN 16908 Public enquiry

Comment end date 2026-10-13

Cement, building lime and other hydraulic binders - Environmental product declarations - Product category rules complementary to EN 15804

The general scope of the core product category rules (PCR) is given in EN 15804:2012+A2:2019, Clause 1. This PCR is primarily intended for the creation of cradle-to-gate EPDs or the declaration of performance in relation to the environmental sustainability of cement, building lime and other hydraulic binders. In particular, “cement” refers to — common cements according to EN 197 1 [1], — very low heat special cements according to EN 14216 [6], — calcium aluminate cement according to EN 14647 [7], — supersulfated cement according to EN 15743 [9]; “building lime” refers to — building lime according to EN 459 1 [3]; “other hydraulic binders” refers to — masonry cement according to EN 413 1 [2], — hydraulic road binders according to EN 13282 [5], — hydraulic binder for non-structural applications according to EN 15368 [8]. In other respects, the scope is as in EN 15804:2012+A2:2019.

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prEN 196-1 Public enquiry

Comment end date 2026-10-08

Methods of testing cement - Part 1: Determination of strength

This part of EN 196 describes the method for the determination of the compressive and, optionally, the flexural strength of cement mortar. The method applies to common cements and to other cements and materials, the standards for which call up this method. It may not apply to other cement types that have, for example, a very short initial setting time. The method is used for assessing whether the compressive strength of cement is in conformity with its specification and for validation testing of a CEN Standard sand, EN 196 1, or alternative compaction equipment. This part of EN 196 describes the reference equipment and procedure and allows alternative compaction equipment and procedures to be used provided that they have been validated in accordance with the appropriate provisions in this document. In the event of a dispute, only the reference equipment and procedure are used.

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