Creep of Concrete at Low Stress-Strength Ratios and Elevated Temperatures

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Title: Creep of Concrete at Low Stress-Strength Ratios and Elevated Temperatures

Author(s): Karim W. Nasser

Publication: Special Publication

Volume: 25

Issue:

Appears on pages(s): 137-148

Keywords: age; compressive strength; concretes; creep properties; creep recovery; curing; high temperature; modulus of elasticity; plain concrete; research; stresses; temperature; water-cement ratio

Date: 1/1/1971

Abstract:
Test results are presented of the creep, strength, elasticity and creep recovery of mass concrete which was tested in the temperature range of 35-205 F and under stress-strength ratios of 10-70 percent. Creep was enhanced by temperature but strength, elasticity and creep recovery were independent of its effects. The relation of creep to stress-strength ratio in the range of 10-70 percent was linear. Discussion of a hypothesis of the creep mechanism is also presented.