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AASHTO T 131-06
- Standard Method of Test for Time of Setting of Hydraulic Cement by Vicat Needle
- standard by American Association of State and Highway Transportation Officials,
- Publisher: AASHTO
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AASHTO T 131-06 is identical to ASTM C191-04a except provisions specified in this document.
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.
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.