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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50389

Title: A method for testing the strength of concrete using uniaxial direct tension
Authors: Wei-Ting Lin
An Cheng
Ran Huang
Tsan-Ching Cheng
Contributors: 國立臺灣海洋大學:河海工程學系
Keywords: splitting tensile strength
direct tensile strength
flexural strength
finite element analysis
modulus of elasticity
Date: 2013-01
Issue Date: 2018-10-08T01:20:17Z
Publisher: Journal of the Chinese Institute of Engineers
Abstract: Abstract: Unlike steel, tensile strength in concrete is difficult to measure through direct testing because the brittleness of concrete will often produce local failure at both ends. This study presents a new method for testing the direct tensile strength of prismatic and cylindrical specimens. Concrete specimens with water/cement ratios of 0.45, 0.55, and 0.65 were designed and cast. Two #6 rebars were arranged along the longitudinal axis of specimens. The technique measured the direct tensile strength of the concrete by producing a uniform tensile stress along the length of the specimen, and, thus, minimized misalignment and stress concentration at both ends, which is predicted from finite element method analysis. This study found that the direct tensile testing method used here was a suitable method for estimating the tensile strength of concrete. The direct tensile strength of prismatic and cylindrical specimens with equal cross-sectional areas was similar. Although tensile strength is about 1/10 of compressive strength, the modulus of elasticity in tension and compression is about the same. Therefore, tensile and compressive strengths should show a statistically significant correlation.
Relation: 36(3) pp.295-303
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50389
Appears in Collections:[河海工程學系] 期刊論文

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