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عنوان البحث(Papers / Research Title)


BOND STRENGTH OF REINFORCING BARS WITH DEFORMATION SPACINGS THAT EXCEED MAXIMUM SPECIFIED IN ASTM A615


الناشر \ المحرر \ الكاتب (Author / Editor / Publisher)

 
علي حسين عبيد محمد عجام

Citation Information


علي,حسين,عبيد,محمد,عجام ,BOND STRENGTH OF REINFORCING BARS WITH DEFORMATION SPACINGS THAT EXCEED MAXIMUM SPECIFIED IN ASTM A615 , Time 02/01/2018 11:16:18 : كلية الهندسة/المسيب

وصف الابستركت (Abstract)


An SL-Report Published on 2014 by The University of Kansas Center for Research, INC.

الوصف الكامل (Full Abstract)

ABSTRACT
The bond strength of two sets of No. 7 reinforcing bars was evaluated in accordance with ASTM A944. One set satisfied the criterion for maximum deformation spacing specified in ASTM A615, while the other had deformations that exceeded the maximum spacing. All bars exceeded the requirements for minimum deformation height. Research related to the effect of deformation properties on bond strength, including the research used to establish the requirements for deformations in ASTM A615, is also reviewed. The test results match earlier research and demonstrate that (1) the bond strength of the bars with deformation spacings that exceed those specified in ASTM A615 is similar to the bond strength of the bars that meet the specification, and (2) the differences in bond strength observed in the tests are not statistically significant. The bars tested in this study with deformation spacings that exceed those specified in ASTM A615 will provide satisfactory bond performance and can be used in all concrete construction.

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