1. Scope
1.1 This practice describes the apparatus and procedure for measuring relative differences in hydration kinetics of hydraulic cementitious mixtures in paste, mortar, or concrete, including those containing admixtures, various supplementary cementitious materials (SCM), and other fine materials, by measuring temperature change over time using a semi-adiabatic calorimeter or other temperature recording equipment. 1.2 Calorimetry is the measurement of heat lost or gained during a chemical reaction such as cement hydration; these measurements as a function of time can be used to describe and evaluate hydration and related influences. Calorimetry may be performed under isothermal conditions (as described in C 1679) or under adiabatic or semi-adiabatic conditions (as described in this standard). Variables that should be considered are discussed in the Appendix.
can be used as a research and quality control tool by concrete producers, contractors, materials suppliers, and researchers
Keywords
semi-adiabatic calorimetry; concrete; mortar; paste; cement-admixture interactions; hydration kinetics; thermal profiles; sulfate balance
The title and scope are in draft form and are under development within this ASTM Committee.
Citing ASTM Standards
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