Work Item
ASTM WK86641

Revision of C494/C494M-19e1 Standard Specification for Chemical Admixtures for Concrete


ASTM C494 has always had a requirement for 1 year test data. In many cases new technologies are delayed due to this requirement. There are no known cases of a product passing the 6 month requirements and then failing the 1 year test. Therefore, C494 is removing the 1 year testing requiremnt.


Developed by Subcommittee: C09.23

Committee: C09

Staff Manager: W Scott Orthey

Work Item Status

Date Initiated: 06-05-2023

Technical Contact: G Terry Harris

Item: 000