- 目录
- 建筑石膏与胶凝材料
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可再分散乳胶粉在高强自流平砂浆中的应用研究
作者：李文杰1，2，曾翠云2，万德刚2
[1.德高（广州）建材有限公司，广东 广州 362801；2.派丽德高（上海）建材有限公司，上海 201419]
摘要：通过在高强自流平砂浆中掺入可再分散乳胶粉，研究了可再分散乳胶粉掺量对高强自流平砂浆流动度、尺寸稳定性、物理力学性能的影响。结果表明：掺入一定量可再分散乳胶粉均有助于提高高强自流平砂浆的稳定性、抗折强度，起到增强增韧效果。当乳胶粉掺量为4.5%时，自流平砂浆的抗折、抗压强度分别达到10.08、50.01 MPa，可制备出符合JC/T 985—2017《地面用水泥基自流平砂浆》要求的F10C50级高强自流平砂浆。
关键词：高强自流平砂浆；可再分散乳胶粉；流动度；抗压强度；抗折强度
中图分类号：TU56+4.6 文献标识码：A 文章编号：1001-702X（2019）11-0106-02
Study on application of redispersible emulsion powder in high-strength self-leveling mortar
LI Wenjie1，2，ZENG Cuiyun2，WAN Degang2
[1.ParexDavco（Guangzhou） Co. Ltd.，Guangzhou 362801，China；2.ParexDavco（Shanghai） Co. Ltd.，Shanghai 201419，China]
Abstract：The influences of different amounts of redispersible latex powder on fluidity，dimensional stability，physical and mechanical properties of high-strength self-leveling mortar are studied by mixing redispersible emulsion powder in high-strength self-leveling mortar. The results show that the addition of a certain amount of redispersible latex powder is useful to improve the stability and flexural strength of high strength self-leveling mortar and to enhance the toughness of self-leveling mortar. The compressive and flexural strength of self-leveling mortar reaches 10.08 MPa and 50.01 MPa respectively，as 4.5% redispersible latex powder is added. The high strength self-leveling mortar of grade F10C50 as listed in JC/T 985—2017 "Cementitious self-leveling compound for floor" is prepared by experiment.
Key words：high strength self-leveling mortar，redispersible latex powder，fluidity，compressive strength，flexural strength