Mary Lou Ralls, Texas Department of Transportation Louetta Road Overpass near Houston, Texas, is one of the first projects in the Federal Highway Administration ( F H WA) national high performance concrete (HPC) bridge implementation program. The overpass, which consists
HPC IMPLEMENTATION
Kenneth R. Wykle, Federal Highway Administrator In recent years, the number of State departmentsof transportation (DOTs) using highperformance concrete (HPC) to build or rebuildbridges has been steadily increasing. HPC usesthe same basic materials as conventional concretebut the proportions are engineered
Question and Answer
Question:Are there quantitative measurements for HPC?Answer:The most common measurement for HPC is concrete compressive strength. The American Concrete Institute recognizes that concrete with a specified compressive strength of 6000 psi (41 MPa) or greater is a high strength concrete and,