新型水泥基渗透结晶型防水剂的制备及性能

材料导报

2021, Vol. 35

Issue (Z1): 216-219

无机非金属及其复合材料

新型水泥基渗透结晶型防水剂的制备及性能

李崇智, 牛振山, 吴慧华, 曹莹莹

北京建筑大学土木与交通工程学院,北京 100044

Preparation and Properties of a New Type of Cement-based Permeable Crystalline Waterproofing Agent

LI Chongzhi, NIU Zhenshan, WU Huihua, CAO Yingying

School of Civil and Transportation Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044, China

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摘要通过初步试验确定原材料并优化配比后,自制了水泥基渗透结晶型防水剂IOC。将IOC防水剂和市场流通的防水剂LLH进行抗压强度实验、吸水率试验、碳化深度实验、抗氯离子渗透实验、抗化学侵蚀实验、自愈合性能试验等实验性能对比。结果表明:当IOC防水剂掺量为2%时,抗压强度比LLH防水剂实验组的提升了8.7%;平均电通量值降低了7.3%;其他性能除吸水率以外,均有不同程度的改善。自主研发的防水剂IOC具有良好的力学性能和防水性能,其实验数据明显优于市场流通的防水剂LLH。同时对自制的IOC防水剂进行性能验证和机理分析,对学界现有的防水机理进行归纳总结,并进行补充。

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关键词: 防水剂自愈合防水机理防水性

Abstract: After determining the raw materials through preliminary tests and optimizing the ratio, the cement-based permeable crystalline waterproofing agent IOC was made. The IOC waterproofing agent and the market-circulating waterproofing agent LLH were tested for compressive strength test, water absorption test, carbonization depth test, chloride ion penetration test, chemical corrosion resistance test, self-healing performance test and other experimental performance comparisons. The results show that when the IOC waterproofing agent content is 2%, the compressive strength is 8.7% higher than that of the LLH waterproofing agent experimental group; the average electric flux value is reduced by 7.3%; other properties except water absorption have different degrees improvement. The self-developed waterproofing agent IOC has good mechanical properties and waterproof performance, and its experimental data is significantly better than the waterproofing agent LLH circulating in the market. At the same time, the performance verification and mechanism analysis of the self-made IOC waterproofing agent are carried out. Summarize and supplement the existing waterproof mechanism in the academic circle.

Key words: waterproofing agent self-healing waterproof mechanism waterproof

发布日期: 2021-07-16

ZTFLH:

TU528

通讯作者: lichongzhi@bucea.edu.cn

作者简介: 牛振山,北京建筑大学2018级在读硕士研究生,主要从事混凝土外加剂研制与应用研究。李崇智,北京建筑大学教授,2004 年清华大学土木工程专业博士毕业,主要从事混凝土外加剂研制与应用研究,在研混凝土抗裂防腐蚀外加剂。

引用本文:

李崇智, 牛振山, 吴慧华, 曹莹莹. 新型水泥基渗透结晶型防水剂的制备及性能[J]. 材料导报, 2021, 35(Z1): 216-219.
LI Chongzhi, NIU Zhenshan, WU Huihua, CAO Yingying. Preparation and Properties of a New Type of Cement-based Permeable Crystalline Waterproofing Agent. Materials Reports, 2021, 35(Z1): 216-219.

链接本文:

http://www.mater-rep.com/CN/ 或 http://www.mater-rep.com/CN/Y2021/V35/IZ1/216

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