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자료유형
학술저널
저자정보
Midhuna, M.S. (Department of Civil Engineering, National Institute of Technology Warangal) Gunneswara Rao, T.D. (Department of Civil Engineering, National Institute of Technology Warangal) Chaitanya Srikrishna, T. (Department of Civil Engineering, National Institute of Technology Warangal)
저널정보
테크노프레스 Advances in concrete construction Advances in concrete construction 제6권 제1호
발행연도
2018.1
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29 - 45 (17page)

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This paper investigates the effect of inclusion of glass fibers on mechanical and fracture properties of binary blend geopolymer concrete produced by using fly ash and ground granulated blast furnace slag. To study the effect of glass fibers, the mix design parameters like binder content, alkaline solution/binder ratio, sodium hydroxide concentration and aggregate grading were kept constant. Four different volume fractions (0.1%, 0.2%, 0.3% and 0.4%) and two different lengths (6 mm, 13 mm) of glass fibers were considered in the present study. Three different notch-depth ratios (0.1, 0.2, and 0.3) were considered for determining the fracture properties. The test results indicated that the addition of glass fibers improved the flexural strength, split tensile strength, fracture energy, critical stress intensity factor and critical crack mouth opening displacement of geopolymer concrete. 13 mm fibers are found to be more effective than 6 mm fibers and the optimum dosage of glass fibers was found to be 0.3% (by volume of concrete). The study shows the enormous potential of glass fiber reinforced geopolymer concrete in structural applications.

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