Title: A Simplified Approach to Determine Pozzolanic Reactivity of Commercial Supplementary Cementitious Materials
Author(s): Keshav Bharadwaj, O. Burkan Isgor, and W. Jason Weiss
Publication: Concrete International
Appears on pages(s): 27-32
Keywords: reaction, heat, test, calorimetry
Much of the concrete produced in the United States contains supplementary cementitious materials (SCMs). The degree of reaction (DOR) of SCMs can be calculated using the pozzolanic reactivity test (PRT), which requires the use of both isothermal calorimetry and thermogravimetric analysis of test samples. The article describes how to determine DOR for commercial SCMs using only isothermal calorimetry, making it easier for commercial testing and production laboratories to evaluate SCMs.