Standards

ASTM WK31777

(What is a Work Item? / How to Input to a Work Item)

Work Item: ASTM WK31777 - Revision of C138 / C138M - 10b Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete


Active Standard: C138 / C138M - 12a

Developed by Subcommittee: C09.60 | Committee C09 Home | Contact Staff Manager



1. Rationale

The calculation for the theoretical density is currently shown in Note 2, as part of the Terminology section. The purpose of this ballot item is to relocate it to the Calculation section of the standard, because this value is used to calculate the gravimetric air content. Since all of the other calculations in section 7 are part of the report, the Theoretical Density is also added to the Report section.


Keywords

air content; cement content; concrete; relative yield; unit weight; yield; Unit weight; Air content--concrete; Cement content (of concrete); Concrete; Density--concrete; Gravimetric determination; Weight--concrete/aggregates; Yield;

Citing ASTM Standards

[Back to Top]




Work Item Status:
Date Initiated:01-24-2011
Technical Contact: Michael Kesselmayer

Item: 015
Ballot: C09 (12-03)
Status: Ballot Item Approved as C138/C138M-2012a and Pending Publication

Standards Tracker

Standards Subscriptions