Crack Patterns and Measurement Technique in Reinforced Concrete

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Title: Crack Patterns and Measurement Technique in Reinforced Concrete

Author(s): C. L. Hwang, R. Y. Lin, J. C. Chen, and J. H. Kuo

Publication: Special Publication

Volume: 126

Issue:

Appears on pages(s): 1163-1184

Keywords: cracking; cyclic loads; inhibitors; reinforced concretes; General

Date: 8/1/1991

Abstract:
The phenomenon of steel corrosion and concrete crack patterns under different water-to-cement ratios and cover depths of concrete was investigated. The steel corrosion of single reinforced concrete beam with different admixtures under repeated loading was also studied. It is possible to predict the crack patterns and mechanical behavior of concrete when steel corrosion is induced. The addition of inhibitors reduced the corrosion rate. If concrete undergoes repeated loadings, the resulting cracks will allow harmful elements in tidal zones to penetrate into the concrete. This will accelerate the corrosion rate, especially at high loading conditions.