ASTM C191 – Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle
These test methods determine the time of setting of hydraulic cement by means of the Vicat needle. Two test methods are given; Method A is the Reference Test Method using the manually operated standard Vicat apparatus, while Method B permits the use of an automatic Vicat machine that has, in accordance with the qualification requirements of this method, demonstrated acceptable performance.
automatic vicat; hydraulic-cement paste; time of setting; vicat; vicat needle
ASTM C191 Accredited Laboratory
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