Effect of fly ash on TSA resistance of cement-based material |
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| Authors: | Fengchen Zhang Baoguo Ma Shengxing Wu Jikai Zhou |
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| Affiliation: | ZHANG Fengchen1,MA Baoguo2,WU Shengxing1,ZHOU Jikai1 (1.College of Mechanics and Materials,Hohai University,Nanjing 210098,China,2.Key Laboratory for Silicate Materials Science and Engineering of Ministry of Education,Wuhan University of Technology,Wuhan 430070,China) |
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| Abstract: | Thaumasite form of sulfate attack(TSA)is a major concern in evaluating durability of concrete structures subjected to sulfate and carbonate ions.By means of Fourier transform infrared spectroscopy (FT-IR),X-ray diffraction(XRD),scanning electron microscopy(SEM),and energy dispersive spectrum(EDS) as well as Raman spectra of erosion substances,effect of fly ash on TSA resistance of Portland cement-based material were investigated.Immersed in magnesium sulfate solution with 33 800 ppm mass concentration of SO... |
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| Keywords: | fly ash cement-based material thaumasite |
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