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丙烯酸酯-水泥复合注浆材料制备及其性能研究
作者：姜瑜，郭飞，孔恒
（北京市政建设集团有限责任公司，北京 100089）
摘要：将丙烯酸酯注浆材料加入到水泥浆液中，对复合浆液的结实率、固结体的无侧限抗压强度以及抗水冲刷性进行了研究。结果表明：复合浆液结实率均高达95%以上；养护28 d，水灰比为2.0的复合浆液固结体抗压强度较纯水泥浆液提高了5.43 MPa，而水灰比为1.0的复合浆液固结体抗压强度较纯水泥浆液提高了9.95 MPa；当动水流速达到0.6 m/s时，复合浆液固结体残留率均大于65%，而纯水泥浆液残留率降至15%以下，最低仅为3.9%。
关键词：丙烯酸酯；水泥；复合注浆材料；抗水冲刷性
中图分类号：TU57+8.1 文献标识码：A 文章编号：1001-702X（2020）08-0159-05
Preparation and properties of acrylate-cement grouting composite
JIANG Yu，GUO Fei，KONG Heng
（Beijing Municipal Construction Group Co. Ltd.，Beijing 100089，China）
Abstract：The cementing rate，unconfined compressive strength and water scour resistance of cement slurry were studied by introducing acrylate grouting material into cement slurry. The test results show that the setting rate of the composite consolidated test block reaches above 95%. After curing for 28 days，the compressive strength of the composite consolidated test block with a water-cement ratio of 2.0 increased by 5.43 MPa compared with pure cement slurry，and the compressive strength of the composite consolidated test block with a water-cement ratio of 1.0 increased by 9.95 MPa compared with pure cement slurry. When the water flow rate was 0.6 m/s，the residual rate of composite slurry is more than 65%，while the residual rate of pure cement slurry decreases to less than 15%，even low to 3.9%.
Key words：acrylate，cement，composite grouting material，scour resistant