Materials and Mix Optimization Procedures for PCC Pavements

Date Started: 2002

Date Ended: 2006-03-01 00:00:00.0

Budget: $159,666

Sponsor: Iowa Highway Research Board

Performing Organization: Iowa State University

Description: Recent changes in the Iowa Department of Transportation Standard Specifications have had a major positive impact on the constructability of Portland Cement Concrete (PCC) pavements in Iowa. However, two important issues remain that need to be researched: mixture homogeneity, and mixture rheology. The goal of this research is to provide contractors and engineers with a set of guidelines that simplify and specify the process of producing affordable and durable PCC pavements. The guidelines will provide details on optimization of concrete mixing procedures when supplementary cementitious materials and other admixtures are used to modify the properties of concrete.