- Author
- Abrams, M. S.
- Title
- Compressive Strength of Concrete at Temperatures to 1600F.
- Coporate
- Portland Cement Assoc., San Ramon, CA
- Report
- Paper SP 25-2, 1972, 26 p.
- Keywords
- concretes | compressive strength | aggregates | high temperature tests | lightweight aggregates | expanded shale aggregates | lightweight concretes
- Identifiers
- carbonate aggregates; petrography; siliceous aggregates
- Abstract
- Compressive strength tests were conducted on 3 x 6 in. (7.5 x 15 cm) cylindrical specimens heated for short duration to temperatures of 200 to 1600 F (93 to 871 C). Variables included aggregate type (carbonate, siliceous, and lightweight), test procedure (heated without load and tested hot, heated with load and tested hot, and tested cool after heating), and original strength of concrete (3300 to 6500 psi - 230 to 455 kg/cm2). Carbonate aggregate concrete and lightweight concrete tested hot without prior loading retained about 75 percent of their original strengths (strengths prior to heating) at 1200 F (649 C). Above that temperature, lower strengths were obtained.