Relationship of Portland Cement Characteristics to Concrete Durability

This digest describes the findings of the research conducted under National Cooperative Highway Research Program (NCHRP) Project 18-05 on the relationship of portland cement characteristics to concrete durability and presents tentative recommendations for modifying cement specifications and test methods. The research included a literature review that identified changes in portland cement composition that have occurred in recent years, and a laboratory investigation to determine the effects of cement characteristics on certain aspects of concrete durability.