D. Stephen Lane, Virginia Transportation Research Council Alkali-silica reaction (ASR) was first reported to have occurred in Virginia in 1941, when Kammer and Carlson revisited the cause of expansion and cracking in a dam attributed a decade earlier to an
Guide Specification for Concrete Subject to ASR
Beatrix Kerkoff, Consultant to the Portland Cement Association Most aggregates are chemically stable in hydraulic cement concrete without deleterious interaction with other concrete constituent materials. However, this is not the case for aggregates containing certain siliceous minerals that react with
Self-Consolidating Concrete Bridge Applications are Expanding
M. Myint Lwin, Federal Highway Administration Self-consolidating concrete (SCC) has generated worldwide interest in research and applications in precast and cast-in-place highway construction. SCC has many engineering, architectural, economic, and environmental benefits. Eliminating the need for concrete vibration reduces the
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Self-Consolidating Concrete for Beams Speeds Biloxi Bay Bridge Construction
Mitchell K. Carr, Mississippi Department of Transportation and Bruce Strickland, Sika Corporation One of the South’s most traveled scenic highways and a major Gulf Coast artery is U.S. Route 90. When Hurricane Katrina destroyed the existing four-lane bridge across Biloxi
Read More >>Self-Consolidating Concrete for Beams Speeds Biloxi Bay Bridge Construction
Implementing SCC Technology in Nebraska—All About Working Together
Mark D. Lafferty, Concrete Industries, Inc. In October 2001, Concrete Industries, Inc. (CI) was working with its admixture supplier to improve our form finish for precast concrete products. They brought us a new product and before long the concrete slump
Read More >>Implementing SCC Technology in Nebraska—All About Working Together