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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Bond Between High-Performance Concrete (HPC) and Reinforcing Bars in Splices of Beams
Author(s): Mohammad-Reza Esfahani and B. V. Rangan
Publication: Special Publication
Volume: 172
Issue:
Appears on pages(s): 971-992
Keywords: Bonding; concretes; high-performance concretes; high-strength concretes; reinforcing materials; silica fume; splicing
Date: 12/1/1999
Abstract:The paper presents studies on local bond and bond strength of splices. The study was conducted in two stages. In the first stage, an analytical equation was developed to calculate the bond strength of splices in normal strength concrete. The mean value of test/calculated bond strength for the proposed equation is 1.007 with a standard deviation of 0.08 1. The second stage of the study comprised the study on local bond and the bond strength of splices in the case of high performance concrete (HPC)/high strength concrete (HSC). The study on local bond involved tests on forty five short length specimens. Using these test results, a relationship for bond strength normalised with respect to the tensile strength of concrete is obtained. The study of bond in splices involved tests on twenty two beams made of HPC/HSC. In each beam, the tensile steel was spliced in the constant moment zone. Using the relationship for local bond in HPC/HSC, the analytical model developed for normal strength concrete is modified. Good correlation between calculated and test strengths of splices in the case of HPC/HSC is found.
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