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A platform for research: civil engineering, architecture and urbanism
Comparison of methods for evaluating bond strength between concrete substrate and repair materials
AbstractThis investigation was aimed at studying the effect of test methods on bond strength between concrete substrate and repair material. Four test methods with cementitious or modified-cementitious repair materials, and two surface roughnesses were studied. The methods used were pull-off, slant shear, splitting prism and a new direct shear named Bi-Surface shear test. While the coefficient of variation (COV) for each type of test was acceptable, the bond strengths from some tests were up to eight times larger than those obtained from others. It is imperative that the bond tests be selected such that they represent the state of stress the structure is subjected to in the field. The new test method was easy to carry out and had reasonable results and can be developed by further investigations.
Comparison of methods for evaluating bond strength between concrete substrate and repair materials
AbstractThis investigation was aimed at studying the effect of test methods on bond strength between concrete substrate and repair material. Four test methods with cementitious or modified-cementitious repair materials, and two surface roughnesses were studied. The methods used were pull-off, slant shear, splitting prism and a new direct shear named Bi-Surface shear test. While the coefficient of variation (COV) for each type of test was acceptable, the bond strengths from some tests were up to eight times larger than those obtained from others. It is imperative that the bond tests be selected such that they represent the state of stress the structure is subjected to in the field. The new test method was easy to carry out and had reasonable results and can be developed by further investigations.
Comparison of methods for evaluating bond strength between concrete substrate and repair materials
Momayez, A. (author) / Ehsani, M.R. (author) / Ramezanianpour, A.A. (author) / Rajaie, H. (author)
Cement and Concrete Research ; 35 ; 748-757
2004-05-17
10 pages
Article (Journal)
Electronic Resource
English
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