Main Article Content
Abstract
Properties of ternary cement concrete, such as set time, strength, datum temperature, and maturity of concrete containing various slag-blended cements and 15% Class C fly ash, were investigated. The slag-blended cements were made of Type I or I/II cement clinker with 20, 25, or 35% ground granulated blast-furnace slag (GGBFS). The concretes were cured at temperatures of 10, 21 and 32C (50, 70 and 90F), which simulate cold, normal, and hot weather field conditions. The results indicated that fly ash replacement generally increased concrete set time, while effect of slag replacement on concrete set time was dependent on the type of clinker used. Concrete datum temperature and activation energy increased with fly ash and slag content. Curing conditions significantly influenced the concrete strength-maturity correlation. This manual is a summary of the findings of a comprehensive study.