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).
PROJECT
naSRPS EN 196-13:2026
40.20
DIS ballot initiated: 12 weeks
Aug 6, 2026
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