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AASHTO T131 – Standard Method of Test 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:

  1. Method A – the Reference Test Method using the manually operated standard Vicat apparatus
  2. Method B – permits the use of an automatic Vicat machine that has, in accordance with the qualification requirements of this method, demonstrated acceptable performance.


hydraulic cement; time of setting; Vicat needle

AASHTO T131 Accredited Laboratory

Applied Testing & Geosciences, LLC is accredited for performing tests using the AASHTO T131 standard.

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