Except for the use of SI units, AASHTO T 186-20 agrees with ASTM C 451-18.This test method covers the determination of early stiffening in hydraulic cement paste.
AASHTO T 186-20
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Standard Method of Test for Early Stiffening of Hydraulic Cement (Paste Method) (ASTM Designation: C451-18)
American Association of State Highway and Transportation Officials , 2020
Pages: 7
