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首页> 外文会议>2011 International Conference on Electric Technology and Civil Engineering >Effect of fly ash and early strength agent on the sulfate resistance of concrete
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Effect of fly ash and early strength agent on the sulfate resistance of concrete

机译：粉煤灰和早期强度剂对混凝土抗硫酸盐性的影响

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摘要

Based on the testing of mass loss rate, chloride ion diffusion coefficient and compressive strength, as well as the microcosmic analysis of SEM and EDS, effects of fly ash and the early strength agent of sodium sulfate on the damage of concrete exposed to the cyclic sulfate environment are studied. The results show that incorporation of fly ash decreased the initial chloride ion diffusion coefficient and compressive strength of concrete, and promoted the compressive strength loss of concrete subjected to the cyclic sulfate exposure. Incorporation of the early strength agent of sodium sulfate decreased the initial chloride ion diffusion coefficient of concrete and increased its initial compressive strength, reducing the compressive strength loss of concrete exposed to the cyclic sulfate environment.
机译：基于质量损失率，氯离子扩散系数和抗压强度的测试，以及SEM和EDS的微观分析，粉煤灰和硫酸钠的早期强度剂对暴露于环状硫酸盐的混凝土损伤的影响研究环境。结果表明，粉煤灰的掺入降低了混凝土的初始氯离子扩散系数和抗压强度，并促进了遭受循环硫酸盐侵蚀的混凝土的抗压强度损失。硫酸钠的早期强度剂的加入降低了混凝土的初始氯离子扩散系数，并提高了其初始抗压强度，从而减少了暴露于环状硫酸盐环境的混凝土的抗压强度损失。

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