Thomas A. Holm and John P. Ries, Expanded Shale Clay and Slate Institute There are many advantages to the use of lightweight aggregate in high performance concrete. This article highlights the primary design- and construction-related benefits. Improved Structural Efficiency (Strength/Weight)
HPC REPEAT SUCCESS IN NEW HAMPSHIRE
Mark D. Whittemore, New Hampshire Department of Transportation The success of New Hampshire’s first high performance concrete (HPC) bridge—Route 104 in Bristol(1)—made the decision to proceed with the next HPC bridge an easy choice. Actually, during New Hampshire’s early involvement
A STRATEGIC PLAN FOR HPC BRIDGES
Basile G. Rabbat, National Concrete Bridge Council During the last 15 years, research performed on high performance concrete (HPC) has led to the construction of a number of HPC bridges in the United States. In the late 1980s, the Strategic
Question and Answer
Question: What is Reactive Powder Concrete? Answer: Reactive Powder Concrete is a high strength ductile material formulated from a special combination of constituent materials. These materials include portland cement, silica fume, quartz flour, fine silica sand, high-range water-reducer, water, and
BENEFITS OF SILICA FUME IN HPC
Terence C. Holland, Silica Fume Association Many designers still look at silica fume as though it were a new material. Silica fume is not new any longer—it has been used in concrete since the 1950s in Norway and since the