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Effect of inner steel plate thickness on the uniformity of stress distribution of the prismatic concrete specimens.
Source publication
Tensile strength is one of the basic and important mechanical properties of concrete. The measurement of the tensile strength of concrete is not easy. This is because this property of concrete is dependent on the different test setups that must be used. Indirect methods have been used hitherto to measure tensile strength of concrete. These methods...
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Citations
... It was determined that the results of the adopted method were lower than the results of strengths measured from the splitting and flexural tests by about 10 % and 50 %, respectively. Besides, for an exact prediction of the concrete tensile strength, other researchers have attempted to explore the behavior of the concrete under uniaxial tensile loading using finite element methods [40]- [42]. ...
This study deals with the development of a load-converting device designed for measuring the direct tensile strength of the concrete. In this regard, a new testing technique based on a novel testing device and modified cylindrical (Ø 100 × 200) molds for the preparation of concrete samples is explained. The embedded rod method was adopted to transmit the uniaxial tensile load to the specimens using the universal compression machine and the current converting device. In order to examine the reliability of the suggested test method, a comparison with indirect tensile methods (splitting and three-point loading flexural tests) was made. The results show that the tensile strength of the tested specimens is lower for the direct tensile test obtained by the proposed test setup than for the flexural test and closer to the strength results obtained from the splitting test. As expected, all the specimens tested using the introduced test method demonstrated a sudden and unique fracture in the middle portion. Additionally, no slippage of embedded bars was noticed during the test.
