超声作用与减水剂对水泥基材料性能影响的对比分析
1 重庆大学材料科学与工程学院,重庆 400000; 2 东南大学材料科学与工程学院,江苏 南京 210000
1. College of Materials Science and Engineering, Chongqing University, Chongqing 400000, China;
2. School of Materials Science and Engineering, Southeast University, Nanjing 210000, China
摘要 通过开展水泥基材料浆体中水泥颗粒分散度、净浆流动度、泌水率、密实度、流变性能等多项测试实验,对比分析了超声技术以及掺加减水剂对水泥基材料性能的影响。研究表明,超声作用能有效分散水泥颗粒,对水泥早期水化有促进作用,而掺加减水剂则会增加泌水风险;Zeta电位测试表明,减水剂的作用时间比超声作用时间短;抗压强度测试表明,超声作用的水泥基材料强度更高;压汞法与超声脉冲波结果表明,超声作用对于水泥基材料的长期性能影响不显著。因此,在一些特殊工程项目建设中,可以结合超声技术作用于水泥浆体,提高水泥使用性能。
关键词:
超声作用
减水剂
水泥基材料
分散度
泌水性
Abstract: Comparative Analysis of the Effects of Ultrasonic Action and Water Reducing Agent on the Properties of Cement-based Materials
Key words:
ultrasonic effect
water reducer
cement-based materials
dispersion
bleeding
出版日期: 2023-09-25
发布日期: 2023-09-25
整期出版日期: 2023-09-25
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