Work Item
ASTM WK81443

Revision of C805/C805M-18 Standard Test Method for Rebound Number of Hardened Concrete


Comments have been made that the calculation of results should be done while still at the test area. The calculation can result in requiring the entire set of readings in a series to be discarded and a new set of readings obtained. If the calculation is done after leaving the test area then the user would have to return to the site to take more readings. This ballot item is to add a note to section 9 that recommends for the user to make the calculations for each set of readings while still at the test area so that any discarded reading sets can be conveniently replaced with reading sets that met the requirements of section 9.


Developed by Subcommittee: C09.64

Committee: C09

Staff Manager: W Scott Orthey

Work Item Status

Date Initiated: 04-04-2022

Technical Contact: Tom Ott

Item: 001

Ballot: C09.64 (22-02)

Status: Negative Votes Need Resolution