ASTM C1753/C1753M-21a
Standard Practice for Evaluating Early Hydration of Hydraulic Cementitious Mixtures Using Thermal Measurements

Standard No.

ASTM C1753/C1753M-21a

Release Date

2021

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM C1753/C1753M-21a

Scope

1.1 This practice describes the apparatus and procedure for evaluating relative differences in early hydration of hydraulic cementitious mixtures such as paste, mortar, or concrete, including those containing chemical admixtures, various supplementary cementitious materials (SCMs), and other finely divided materials, by measuring the temperature history of a specimen. 1.2 Calorimetry is the measurement of heat lost or gained during a chemical reaction such as cement hydration; calorimetric measurements as a function of time can be used to describe and evaluate hydration and related early-age property development. Calorimetry may be performed under isothermal conditions (as described in Practice C1679) or under adiabatic or semi-adiabatic conditions. This practice cannot be described as calorimetry because no attempt is made to measure or compute the heat evolved from test specimens due to hydration, but it can in many cases be used for similar evaluations. Variables that should be considered in the application of this practice are discussed in the Appendix. 1.3 Units—The values stated in either SI units or inchpound units shall be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. Some values have only SI units because the inch-pound equivalents are not used in practice. 1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. NOTE 1—Warning: Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.2 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM C1753/C1753M-21a Referenced Document

• ASTM C1005 Standard Specification for Reference Masses and Devices for Determining Mass and Volume for Use in Physical Testing of Hydraulic Cements
• ASTM C125 Standard Terminology Relating to Concrete and Concrete Aggregates
• ASTM C1679 Standard Practice for Measuring Hydration Kinetics of Hydraulic Cementitious Mixtures Using Isothermal Calorimetry*， 2022-12-15 Update
• ASTM C172/C172M Standard Practice for Sampling Freshly Mixed Concrete*， 2024-04-21 Update
• ASTM C192/C192M Standard Practice for Making and Curing Concrete Test Specimens in the Laboratory
• ASTM C219 Standard Terminology Relating to Hydraulic and Other Inorganic Cements*， 2024-04-01 Update
• ASTM C305 Standard Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency
• ASTM C39/C39M Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens
• ASTM C403/C403M Standard Test Method for Time of Setting of Concrete Mixtures by Penetration Resistance
• ASTM C494/C494M Standard Specification for Chemical Admixtures for Concrete

ASTM C1753/C1753M-21a history

• 2021 ASTM C1753/C1753M-21a Standard Practice for Evaluating Early Hydration of Hydraulic Cementitious Mixtures Using Thermal Measurements
• 2021 ASTM C1753/C1753M-21 Standard Practice for Evaluating Early Hydration of Hydraulic Cementitious Mixtures Using Thermal Measurements
• 2015 ASTM C1753/C1753M-15e1 Standard Practice for Evaluating Early Hydration of Hydraulic Cementitious Mixtures Using Thermal Measurements
• 2015 ASTM C1753-15 Standard Practice for Evaluating Early Hydration of Hydraulic Cementitious Mixtures Using Thermal Measurements