不同水胶比对建筑水泥基灌浆料性能的影响研究
Study on the Effect of Different Water-glue Ratios on the Performance of Construction Cement-based Grout
李彦鹏 1杨林 1边尚芸1
作者信息
- 1. 北京九通衢检测技术股份有限公司,北京 100024
- 折叠
摘要
为掌握不同水胶比对建筑水泥基灌浆料性能的影响,文中测试4 种水胶比下水泥基灌浆料的膨胀性、流动度、强度,并进行分析.结果表明,随着水胶比的增加,水泥基灌浆料的初始流动性逐渐提高,同时水泥基灌浆料抗压强度呈现出不断降低的规律;总体膨胀率表现为随着水胶比的提高而增大的趋势;灌浆料水胶比为0.24～0.30 时的电通量均在1 000C以内,表明其氯离子渗透性较低,且灌浆料氯离子扩散系数和电通量随着水胶比的增大而增大,氯离子抗渗透性则逐渐降低.
Abstract
In order to grasp the influence of different water-cement ratios on the performance of construction cement-based grout,the expan-sion,fluidity and strength of cement-based grout under four water-cement ratios were analyzed.The test results show that with the increase of water-cement ratio,the initial fluidity of cement-based grout gradually increases,and the compressive strength of cement-based grout shows a decreasing law.The overall expansion rate showed a trend of increasing with the increase of water-cement ratio.When the water-cement ratio of grouting material is 0.24～0.30,the electric flux is within1 000 C,which indicates that its chloride ion permeability is low,and the chlo-ride ion diffusion coefficient and electric flux of grouting material increase with the increase of water-cement ratio,and the chloride ion permea-bility resistance gradually decreases.
关键词
水泥基灌浆料/水胶比/膨胀性/流动度Key words
Cement based grouting material/Water cement ratio/Expansibility/Liquidity引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据