Published jointly by the Federal Highway Administration and the National Concrete Bridge Council
Gina Ahlstrom, Federal Highway Administration Alkali-silica reactivity (ASR) is a deleterious reaction that can occur in concrete mixtures when alkalis in the cement and other pozzolanic materials react with siliceous aggregates and expand when exposed to moisture. The Federal Highway
Read More >>FHWA Alkali-Silica Reactivity Development and Deployment Program
Brian D. Merrill, Texas Department of Transportation For some states, alkali-silica reaction (ASR) in concrete has become just as big a concern as corrosion of reinforcing steel. Such is the case in Texas, where reinforcing steel corrosion mainly affects the
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
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