Study on time-varying viscosity of cement and sodium silicate grout under seawater condition
Study on time-varying viscosity of cement and sodium silicate grout under seawater condition
复制标题
海水条件下水泥和水玻璃浆液粘度时变研究
DOI：
10.1016/j.conbuildmat.2020.121223
复制
发表时间：
2020-11
影响因子：
7.4
通讯作者：
Xiong Juncheng
中科院分区：
文献类型：
--
作者：
Li Peng;Wang Chengqian;Fan Guoxi;Liu Yong;Xiong Juncheng
从工程实际出发，注浆技术是加固海底隧道周围软弱岩体的有效方法，而弄清海水条件对浆液性能的影响是工程应用的基础。本文主要研究了海水条件下浆液粘度的时变特性。选取工程中常用的不同配比的水泥-水玻璃（C-S）浆液作为研究对象。通过NDJ-8 S数显旋转粘度计，获得了C-S浆液的时变粘度。并对海水和淡水条件下浆液粘度进行了对比分析。试验结果表明，海水条件和体积比（C-S比）对C-S浆液的时变粘度有明显影响。海水条件下C-S浆液粘度随时间的变化过程可分为3个阶段：（a）初始阶段、（B）稳定阶段和（c）上升阶段，而淡水条件下只有2个阶段。此外，在初始阶段，水泥浆在海水中的粘度远大于在淡水中的粘度。在此基础上，建立了不同配比C-S浆液的粘度时变模型。希望所得数据能为今后C-S浆液灌浆设计提供参考。
For practical purposes, the grouting technique is an effective method to strengthen weak rock masses around subsea tunnels, while clarifying the effect of seawater condition on grout properties is the basis for engineering applications. This study mainly focuses on the time-varying viscosity of grout under seawater condition. The cement and sodium silicate (C-S) grout with different ratios that commonly used in engineering cases was selected in this study. Through the digital display rotating viscometer (NDJ-8S), the time-varying viscosity of C-S grout was obtained. Moreover, the comparative analysis of grout viscosity under seawater and freshwater conditions was made. The test results show that the time-varying viscosity of C-S grout was obviously influenced by seawater condition and volume ratio (C-S ratio). The variation process of C-S grout viscosity with time under seawater condition can be divided into three stages: (a) initial stage, (b) stable stage and (c) rising stage, while there are only two stages under freshwater condition. Furthermore, the viscosity of grout in seawater is much greater than that in freshwater at the initial stage. After that, the time-varying viscosity models of C-S grout with different ratios were obtained on basis of experimental data. It is hoped that the obtained data will provide aids to the design of grouting with C-S grout in the future.
登录
查看更多内容
多孔介质中水泥浆的强度和过滤稳定性
影响因子：
6.9
作者：
Zilong Zhou;Xin Cai;Xueming Du;Shanyong Wang;Dan Ma;Haizhi Zang
通讯作者：
Haizhi Zang
影响因子：
2.2
作者：
Juwei Yun;J. Park;Y. Kwon;Byung-Kyu Kim;In-Mo Lee
通讯作者：
Juwei Yun;J. Park;Y. Kwon;Byung-Kyu Kim;In-Mo Lee
影响因子：
7.4
作者：
A. Corradini;G. Cerni;A. D’Alessandro;F. Ubertini
通讯作者：
A. Corradini;G. Cerni;A. D’Alessandro;F. Ubertini
影响因子：
2.2
作者：
B. Chun;Yong-Jea Lee;H. Chung
通讯作者：
B. Chun;Yong-Jea Lee;H. Chung
DOI：
10.1016/j.ijrmms.2015.03.021
发表时间：
2015-06
影响因子：
7.2
作者：
M. Heidari;F. Tonon
通讯作者：
M. Heidari;F. Tonon