Karen A. Bexten and Shane Hennessey, Tadros Associates, LLC and Bill LeBlanc, Con-Force Structures Limited Currently under construction near Calgary, Canada, the 774-ft (236-m) long twin structures of the Bow River Bridge use high performance concrete for their precast, prestressed
DELAWARE’S HPC BRIDGES
James T. Pappas, Delaware Department of Transportation The Delaware Department of Transportation (DelDOT) first discussed the use of high performance concrete (HPC) with the Federal Highway Administration early in 1996. Based on these discussions, DelDOT initiated trial projects with HPC
Question and Answer
Question: Should high-strength concrete be used for cast-in-place concrete bridge decks? Answer #1: by Kevin R. Pruski, Texas Department of Transportation Generally, concrete bridge decks do not need the higher design strengths offered by high-strength concrete. Common construction problems for
BENEFITS OF CORROSION INHIBITORS IN HPC
James M. Gaidis and Arnold M. Rosenberg, Concrete Corrosion Inhibitors Association Although corrosion inhibitors are considered to be relatively new materials, some inhibitors have been employed successfully for over 20 years. This article briefly explains corrosion mechanisms and how corrosion
SHEAR TESTS OF HIGH-STRENGTH CONCRETE GIRDERS
John J. Roller, Construction Technology Laboratories, Inc., Robert N. Bruce, Tulane University, and Henry G. Russell, Henry G. Russell, Inc. The Louisiana Department of Transportation and Development (LA DOTD) built its first high performance concrete bridge—Charenton Canal Bridge* in 1999.