Title:
Isothermal Calorimetry – An Essential Cement Chemist’s Tool
Author(s):
Burris
Publication:
Web Session
Volume:
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
10/23/2022
Abstract:
Isothermal calorimetry is a technique commonly used essential tool for examining the hydration kinetics of cementitious systems. Isothermal calorimetry is frequently used to evaluate early age reactions and the influence of materials, including supplementary cementitious materials, sulfate phases, and admixtures on cement hydration rates and extents and understanding gained from use of this technique can predict changes in setting time and strength development. Recently use of calorimetry at higher temperatures and with controlled pore solutions has begun to enable exploration of later age or more inherent material properties of cementitious mixtures such as ‘reactivity.’ This presentation will provide an overview of the isothermal calorimetry technique, review significant factors that can ensure the creation of high-quality calorimetry data, discuss approaches for evaluating system reactions, and provide examples of extensions of isothermal calorimetry data to assess other performance properties such as set time, strength development, and reactivity.