ASTM C 807 - 08 Standard Test Method for Time of Setting of Hydraulic Cement Mortar by Modified Vicat Needle

American Society for Testing and Materials (ASTM). Current edition approved June 1, 2008. Published July 2008. 3 p. This test method covers the determination of the time of setting of hydraulic cement mortar by means of the modified Vicat needle.
The purpose of this test method is to establish whether or not a cement complies with a specification limit on time of setting. It has been found to be particularly applicable for the determination of the setting time of expansive cements.