硅烷乳液憎水剂用量对混凝土性能的影响研究  

Research on the Influence of the Dosage of Silane Emulsion Hydrophobic Agent on the Performance of Concrete

作　　者：贾晓光 JIA Xiaoguang(Hunan Remote Sensing Geological Survey and Monitoring Institute,Changsha 410015,Hunan,China)

机构地区：[1]湖南省遥感地质调查监测所,湖南长沙410015

出　　处：《工程技术研究》2023年第12期107-111,共5页Engineering and Technological Research

摘　　要：文章主要研究了不同用量的硅烷乳液憎水剂对混凝土性能的影响,探索改良混凝土性能的配料方法。具体而言,在混凝土基础制备过程中,调整硅烷乳液憎水剂掺量。制备4组试验试件,其中硅烷乳液与混凝土的质量比分别为1.0%、1.5%、2.0%及空白组,对四组试验试件分别开展力学性能、防水性能、抗碳化、抗冻融测试。试验测试结果显示:硅烷乳液憎水剂用量越高,混凝土力学性能与抗冻融性能越差,但是1.5%硅烷乳液憎水剂混凝土具有良好的防水性与抗碳化性能,该试件能抵御水分下渗至混凝土,水体能直接从混凝土表面流失且带走灰尘,达到良好的冲洗清洁效果。因此,适量使用硅烷乳液憎水剂能提升混凝土的耐久性与防水性。The influence of different dosages of silane emulsion hydrophobic agent on concrete performance were studied,and the batching methods of improving the concrete performance were explored.Specifically,in the process of concrete foundation preparation,the dosage of silane emulsion hydrophobic agent is adjusted.Four groups of test specimens were prepared,in which the mass ratios of silane emulsion to concrete were 1.0%,1.5%,2.0% and blank group respectively.The mechanical performance,waterproof performance,carbonation resistance and freezethaw resistance of the four groups of test specimens were tested respectively.The test results show that the higher the amount of silane emulsion hydrophobic agent is,the worse the mechanical performance and freeze-thaw resistance of concrete are,but the 1.5%silane emulsion hydrophobic agent concrete has good waterproof and carbonation resistance.The specimen can resist water infiltration into the concrete,the water can directly drain from the concrete surface and take away dust to achieve a good washing and cleaning effect.Therefore,the appropriate use of silane emulsion hydrophobic agent can improve the durability and waterproof performance of concrete.

关 键 词：硅烷乳液 憎水剂 混凝土 性能强度 防水性能 抗碳化 

分 类 号：TU572[建筑科学—建筑技术科学]