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http://dx.doi.org/10.9711/KTAJ.2013.15.3.175

Flexural performance evaluation of SFRC with design strength of 60 MPa  

Moon, Do-Young (Department of Civil Engineering, Kyungsung Univ.)
Kang, Tae-Sung (SAMPYO Construction & Engineering co. Ltd., R&D Department)
Chang, Soo-Ho (Geotechnical Engineering Research Division, Korea Institute of Construction Technology)
Lee, Gyu-Phil (Geotechnical Engineering Research Division, Korea Institute of Construction Technology)
Bae, Gyu-Jin (Geotechnical Engineering Research Division, Korea Institute of Construction Technology)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.15, no.3, 2013 , pp. 175-186 More about this Journal
Abstract
Based on Model Code 2010, flexural and residual strength, flexural toughness of SFRC with design strength of 60 MPa are evaluated. For comparisons, SFRC with design strength 40 MPa was tested. Distribution of steel fibers in crack surface of specimens was evaluated by visual inspection. The used steel fibers were hooked fibers with aspect ratio of 64, 67 and 80. In all specimens, mix ratio of steel fibers was 0.5% Vol. In results, only SFRC with the highest aspect ratio satisfied requirements specified in Model Code 2010. The results demonstrated that the use of high aspect ratio will provide enough flexural toughness for high strength concrete. Also, it is found that low slump of high strength concrete can help to enhance isotropic fiber distribution.
Keywords
Flexural Strength; SFRC; Fiber Distribution; High Strength;
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Times Cited By KSCI : 1  (Citation Analysis)
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