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防水屋面材料
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新型抑温型抗裂防水剂的制备与性能研究

作者：邓小旭1，邹伟1，王雨禾1，李国权2，雷中梨1

关键字：新型,抑温型,抗裂,防水剂,的,制备,与,性能,

　
（1.武汉源锦建材科技有限公司，湖北 武汉  430083；
2.武汉三源特种建材有限责任公司，湖北 武汉  430083）
　   摘要：研发了一种新型抑温型混凝土抗裂防水剂HAW，并与高性能纤维抗裂抗渗复合材料（HCM）、混凝土抗裂硅质防水剂（JXⅢ）、混凝土无机纳米抗裂减渗剂（WDF）等市场上常见的几种刚性结构自防水材料进行了水泥净浆水化温升、工作性能、抗压强度、抗渗性能、抗氯离子渗透性能、吸水率和平板开裂等对比试验。结果表明：掺入HAW防水剂后，与空白组相比，水泥水化温峰降低了40.1%，温峰时间延后5.4 h，渗透高度降低79.0%，电通量降低59.9%，吸水率降低45.2%，具有良好的抗渗、防水和抗裂性能。除导致混凝土1 d抗压强度降低外，其他几项性能均有显著提高。
　　  关键词：防水剂；水泥水化；耐久性；抗渗抗裂
    中图分类号：TU57+2       文献标识码：A        文章编号：1001-702X（2023）01-0095-05
 
Preparation and properties of a new type of hydration-inhibiting anti-cracking and waterproofing agent
DENG Xiaoxu1，ZOU Wei1，WANG Yuhe1，LI Guoquan2，LEI Zhongli1
（1.Wuhan Ujion Building Materials Technology Co. Ltd.，Wuhan 430083，China；
2.Wuhan Sanyuan Special Building Material Co. Ltd.，Wuhan 430083，China）
    Abstract：Independently developed a new type of hydration-inhibiting concrete anti-cracking waterproofing agent HAW，which is combined with several common rigid structural self-waterproofing materials on the market：high-performance fiber anti-cracking and impermeability composite material（HCM），concrete anti-cracking siliceous waterproofing agent（JXⅢ），concrete inorganic nano anti-cracking and seepage reducing agent（WDF） were carried out comparative tests of cement slurry hydration temperature rise，working performance，compressive strength，impermeability，resistance to chloride ion penetration，water absorption and plate cracking. The results show that： after adding the self-made HAW waterproofing agent， the cement hydration temperature peak is reduced by 40.1% compared with the blank group，the temperature peak time is delayed by 5.4 h，the penetration height is reduced by 79.0%，the electric flux is reduced by 59.9%，and the water absorption rate is reduced by 45.2%. Except that it will reduce the 1 d compressive strength of concrete，other properties have been significantly improved. The self-made HAW waterproofing agent has good impermeability，waterproofing and crack resistance.
    Key words：waterproofing agent，cement hydration，durability，impermeability and crack resistance