Published jointly by the Federal Highway Administration and the National Concrete Bridge Council
The AASHTO Standard Specifications for Highway Bridges – Division II, AASHTO LRFD Bridge Design Specifications, and the AASHTO LRFD Bridge Construction Specifications include a table that defines classes of concrete for use in highway structures. The table, which is similar
Read More >>SPECIFICATION CHANGES FOR HPC—CLASSES OF CONCRETE AND CEMENTITIOUS MATERIALS
Beatrix Kerkhoff, Portland Cement Association The development of air-entrained concrete in the mid-1930s was one of the greatest advances in concrete technology. Air-entrained concrete contains small and stable air bubbles that are uniformly distributed throughout the cement paste. Air-entrained concrete
Raymond D. Cook, Utah Department of Transportation The 17-mile (27-km) long, $1.59 billion I-15 Reconstruction Project in Salt Lake City, Utah, was the nation’s largest design-build highway project awarded to a single contractor. The project included the design and construction
Mathew Royce, New York State Department of Transportation New York State Department of Transportation (NYSDOT) implemented the use of high performance concrete (HPC) for bridge beams with the completion of three bridges in 2001. An additional 19 bridges are now