膏体硅烷在高性能混凝土中的保护效果

作者：苏海防 王锐劲 黄君哲 熊建波 潘德强

单位：中交四航局第一工程有限公司东江口预制构件厂 中交四航局第一工程有限公司东江口预制构件厂 中交四航工程研究院有限公司 中交四航工程研究院有限公司 中交四航工程研究院有限公司 广东东莞523730 广东东莞523730 广东广州510230 广东广州510230 广东广州510230

关键词：膏体硅烷  渗透深度  浸渍  吸水率  高性能混凝土

分类号：TU528.33

出版年,卷(期):页码：2007,31(3):30-32

摘要：

结合某海工高性能混凝土防腐蚀工程,研究了几种常用硅烷浸渍剂对高性能混凝土的保护效果。工程应用结果表明:SHJS-5201膏体硅烷浸渍剂因其具有触变性能等特点,在密实性能较高的高性能混凝土中仍具有3mm以上的渗透深度,氯化物降低效果可达95%以上,解决了一般硅烷产品在海工高性能混凝土中渗透深度欠佳的问题。

The effect of several types of common silicane impregnating agents in protection of high performance concrete was studied on the basis of the practice of corrosion protection of high performance concrete for a maritime project. The results of the engineering practice showed that SHJ S-5201 cream-silicane impregnating agent, with its thixotropic property, still had better penetration of more than 3 mm in high performance concrete with higher density and more than 95 % of chlorine can be reduced, thus overcoming the problem that ordinary silicane products have a poor penetration in high performance concrete for maritime structures.

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参考文献：

[1]Prezzi M,Geyskens P h,Monteiro P J M.Reliability approach to Service Life Prediction of Concrete Exposed to Marine Environments[J].ACI Material Journal,1996,93(6):544-552. [2]Hager R.Silicones for concrete protection[A].Proceedings of the International Conference held at the University of Dundee[C].Scotland,1996.361-367. [3]熊建波,王胜年.硅烷浸渍剂在混凝土保护中的应用研究[J].混凝土,2004,(9):63-65. [4]吴平,Heinz Geich.硅烷膏体浸渍剂在保护混凝土中的实际应用[J].混凝土,2003,(10):62-65.

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