prEN 196-19
Cemento bandymo metodai. 19 dalis. Cemente esančių šarmų poveikio nustatymas
Standarto projektas Viešoji apklausaProjekto etapai
1. Decision on WI Proposal
2. Projektas
3. Viešoji apklausa
Nuo 2026-08-14
iki 2026-10-13
4. Closure of enquiry
5. Submission to Formal Vote
Organizacija
CEN Europos standartizacijos komitetasICS
91.100.10 - Cementas. Gipsas. Kalkės. SkiedinysTechnikos komitetas
TK 25 Rišamosios medžiagos, gipsas ir gipso gaminiaiUžsienio technikos komitetas
CEN/TC 51Komentarų skaičius
0Komentavimo pradžia
2026-08-14Taikymo sritis
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].