Creep of Concrete Influenced by Accelerators


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Title: Creep of Concrete Influenced by Accelerators

Author(s): B. B. Hope and D. C. Manning

Publication: Journal Proceedings

Volume: 68

Issue: 5

Appears on pages(s): 361-365

Keywords: accelerating agents: admixtures: age;air entrainment; calcium chlorides; cements: compressive strength; concretes; creep properties:hydration; lignosulfonate;shrinkage: strains: triethanolamine.

Date: 5/1/1971

The effects of calcium cholride and triethanolamine on the creep of concrete were determined. Specimens were loaded in unaxial compression at 7 and 28 days to a stress/ strength ratio of 0.3 and stored in either a wet or dry enviroment. Calcium cholride significantly increased creep under all the conditions investigated. Triethanolamine significantly increased creep in specimens loaded at 7 days. The effect of an admixture on creep may possibly be determined by its influence in the hydrodynamic properties of the cement gel.