Title:
ASTM C457/C457M-16, "Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete."
Author(s):
ASTM Subcommittee C09.65 on Petrography
Publication:
Commentary Reference
Volume:
Issue:
Appears on pages(s):
Keywords:
DOI:
10.1520/C0457_C0457M-16
Date:
4/1/2017
Abstract:
This test method describes procedures for microscopical determinations of the air content of hardened concrete and of the specific surface, void frequency, spacing factor, and paste-air ratio of the air-void system in hardened concrete. Three procedures are described: