Work Item
ASTM WK86670

Revision of C1778-22 Standard Guide for Reducing the Risk of Deleterious Alkali-Aggregate Reaction in Concrete


Change alkali loading definition to include the alkalies in the limestone component of C595 blended cements. Alkalies in C150 portland cements include those contributed by limestone, and this will give similar treatment to limestone alkalies in C595 cements. This will simplify loading calculations in particular for Type IL cements, which would be calculated using the alkalies measured in the finished cement.


Developed by Subcommittee: C09.50

Committee: C09

Staff Manager: W Scott Orthey

Work Item Status

Date Initiated: 06-06-2023

Technical Contact: Eric Giannini

Item: 000