Work Item
ASTM WK84873

Revision of C29/C29M-17a Standard Test Method for Bulk Density (“Unit Weight”) and Voids in Aggregate

Rationale

Section 8.7 of the standard states “Calculate the volume, V, of the measure” but does not provide the user a calculation formula and variables until Section 10.3. The revised standard will direct the user to Section 10.3 to find the calculation formula and variables for users to properly determine the volume of the measured used in the procedure. In addition, the subcommittee agreed that the factor for measure (m-3) was not beneficial for user as it was simply the inverse of the volume (m3) and should be removed from the standard. Formulas using the factor of measure ((2) and (6) in Section 10), rather than the volume, will be removed to avoid confusion for the user. Formula numbers within the standard will be updated accordingly to account for the removed formulas.

In addition, the committee agreed that the factor for measure (m-3) was not beneficial for user as it was simply the inverse of the volume (m3) and should be removed from the standard. Formulas using the factor of measure, rather than the volume, will be removed to avoid confusion for the user.

Details

Developed by Subcommittee: C09.20

Committee: C09

Staff Manager: W Scott Orthey

Work Item Status

Date Initiated: 01-18-2023

Technical Contact: Kyle Brashear

Item: 000

Ballot:

Status: