| Summary: | 碩士 === 國立海洋大學 === 材料工程研究所 === 90 === The study is to investigate the effect of slag on durability of concrete. Testing variables are slag replacement with 0%, 10%, 20%, 30%, and 40%, and water to binder ratios are 0.35, 0.45, and 0.55. Resisitivity test, accelerated chloride migration test, rapid chloride penetration test, and compressive strength test were performed.
Testing results show that the compressive strengths of slag replacement lower than 20% doesn’t increase with increasing the slag replacement. However, the compressive strengths increase slightly in the slag replacement of 40%. Results of rapid chloride penetration test and accelerated chloride migration test present that the addition of slag increases the resistance of chloride diffusion. The normalized flux of slag replacement of 40% with w/b 0.35, 0.45, 0.55 are 50%, 65%, 70% respectively.
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