ASTM C451-99 - 10.1.1999
 
1. Scope

1.1 This test method covers the determination of early stiffening in hydraulic-cement paste.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

 
2. Referenced Documents

C183-13

Standard Practice for Sampling and the Amount of Testing of Hydraulic Cement

C187-25

Standard Test Method for Amount of Water Required for Normal Consistency of Hydraulic Cement Paste

C219-25

Standard Terminology Relating to Hydraulic and Other Inorganic Cements

C305-20

Standard Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency

C670-24ae1

Standard Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials (Includes all amendments and changes 2/21/2025).

C150-07

Standard Specification for Portland Cement

C1005-20

Standard Specification for Reference Masses and Devices for Determining Mass and Volume for Use in Physical Testing of Hydraulic Cements

D1193-24

Standard Specification for Reagent Water