Work Item
ASTM WK97383

Revision of C109/C109M-24 Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 50 mm [2 in.] Cube Specimens)

Rationale

The alternative compaction method can be used for fly ash strength activity index and slag activity index only after qualification testing with a C150, C595, or C1157 cement and also a stucco, mortar, or masonry cement. This requirement to also do qualification testing with stucco, mortar, or masonry cement does not provide relevant data for strength activity index and slag activity index testing.

Details

Developed by Subcommittee: C01.27

Committee: C01

Staff Manager: Kevin Shanahan

Work Item Status

Date Initiated: 12-11-2025

Technical Contact: Mark Niemuth

Item: 000

Ballot:

Status: