Effect of Age of Concrete on Bond Resistance


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Title: Effect of Age of Concrete on Bond Resistance

Author(s): K. R. Peattie and J. A. Pope

Publication: Journal Proceedings

Volume: 52

Issue: 2

Appears on pages(s): 661-672

Keywords: no keywords

Date: 2/1/1956

A series of tests was made of the effect of age on the factors controlling bond resistance in the adhesive and frictional stages. Test specimens of the pull-out type utilizing machined polished bars were employed together with some specimens in which the bond resistance was broken down by the application of a torque to the steel. It was found that bond resistance grows rapidly and at a much greater rate than the compressive strength of concrete. It is suggested that bond resistance is dependent only to a minor degree on the strength of the concrete.