Jose Higareda, California Department of Transportation The Angeles Crest Bridge 1 is located along scenic Route 2 northwest of the city of Los Angeles within the Angeles National Forest, California. The 208-ft (63.4-m) long single span, precast, prestressed concrete, spliced
Question & Answer
Question: If the concrete in my precast, prestressed concrete bridge beams has achieved the specified compressive strength before the specified age, is there any reason not to transport and erect them? Answer: For prestressed concrete bridge beams, the Engineer specifies
High Strength Lightweight Concrete Properties of the I-85 Ramp over State Route 34
R. Brett Holland and Lawrence F. Kahn, Georgia Institute of Technology The high strength lightweight concrete (HSLWC) girders for the center two spans of the I-85 Ramp over Georgia State Route 34 were fabricated by Standard Concrete Products in Atlanta,
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Measurement of Air Content in Concrete
Michelle L. Wilson, Portland Cement Association Several techniques are available for measuring the air content of fresh concrete. This article describes five techniques for use with fresh concrete and one technique for use with hardened concrete. The reader is referred
High Strength Lightweight Concrete for Use in Precast, Prestressed Concrete Bridge Girders in Georgia
Paul Liles, Georgia Department of Transportation and R. Brett Holland, Georgia Institute of Technology The development of high strength concretes has allowed for the use of longer precast, prestressed concrete bridge girders throughout the United States. In Georgia, the increased