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工业建筑  2008 

高早强磷硅酸盐水泥修复性能的研究

DOI: 10.13204/j.gyjz200809023, PP. 77-81

Keywords: 磷酸镁水泥,粉煤灰,早期强度,盐冻腐蚀,微观结构

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Abstract:

对一种新型快凝高早强水泥材料——磷硅酸盐水泥的性能给予研究。该水泥以烧结镁砂、磷酸盐和粉煤灰为主要原料,其中粉煤灰的用量为干胶凝材料质量的40%。该水泥具有很高的早期强度,用于快速粘结损坏的旧混凝土,可在冰点温度下施工。由于水胶比较小和水化硬化后的特殊微观结构,该水泥具有很强的抗盐冻腐蚀性能。该水泥粘结后的旧混凝土可以快速发展强度。

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