Work Item
ASTM WK87012

Revision of C596-18 Standard Test Method for Drying Shrinkage of Mortar Containing Hydraulic Cement


Section 12 should have real formulas and the second half moved to a report section and broken down into steps and follow the ASTM form and style manual. Additionally, the language around the calculation of drying shrinkage is confusing, in that the calculation will give you a negative value, but there is subsequent text stating “Do not prefix a shrinkage value with a minus sign” since a negative shrinkage implies expansion. The calculation and wording around it will be revised so that if there is shrinkage, it will give a positive value, eliminating the need for the additional language.


Developed by Subcommittee: C01.31

Committee: C01

Staff Manager: W Scott Orthey

Work Item Status

Date Initiated: 07-03-2023

Technical Contact: Rick Darnell

Item: 000