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RISS 인기검색어
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- 저자 : M. Eren Gülşan (검색결과 1 건)
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M. Eren Gülşan,Khamees N. Abdulhaleem,Ahmet E. Kurtoğlu,Abdulkadir Çevik 사단법인 한국계산역학회 2018 Computers and Concrete, An International Journal Vol.21 No.6
This pioneer study investigates the size effect on the compressive and tensile strengths of fiber-reinforced selfcompacting concrete (FR-SCC) with different specimens, before and after exposure to elevated temperatures. 432 selfcompacting concrete (SCC) specimens with two concrete grades (50 and 80MPa) and three steel fiber ratios (0%, 0.5% and 1%) were prepared and tested. Moreover, based on the experimental results, new formulations were proposed to predict the residual strengths for different specimens. A parametric study was also carried out to investigate the accuracy of proposed formulations. Residual strength results showed that the cylinder specimen with dimensions of 100×200 mm was the most affected, while the cube with a size of 100 mm maintained a constant difference with the standard cylinder (150×300 mm). Temperature effect on the cube specimen (150 mm) was the least in comparison to other specimen sizes and types. In general, provision of steel fibers in SCC mixtures resulted in a reduction in temperature effect on the variance of a conversion factor. Parametric study results confirm that the proposed numerical models are safe to be used for all types of SCC specimens.
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