With the desired long open time for post-tension grouts, we use an Automatic Vicat Apparatus to get a more accurate and precise set time when testing US SPEC NA-100 and US SPEC NA Grout.  Also, PTI M55.1-12 specification calls for set time to be tested in accordance with ASTM C953 Standard Test Method for Time of Setting of Grouts for Preplaced-Aggregate Concrete in the Laboratory.

NA-100 NA Grout

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