prEN 196-19
Methods of testing cement - Part 19: Determination of the contribution of cement's alkalis
Draft Public enquiryProject stage codes
1. Decision on WI Proposal
2. Projektas
3. Viešoji apklausa
From 2026-08-14
till 2026-10-13
4. Closure of enquiry
5. Submission to Formal Vote
Organisation
CEN Europos standartizacijos komitetasICS
91.100.10 - Cement. Gypsum. Lime. MortarTechnical Committee
TK 25 Matrix, gypsum and gypsum based productsForeignTC'S
CEN/TC 51Number of comments
0Comment start date
2026-08-14Scope
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].