Effect of Different Expanders on Properties of Cement Based Grouting Material

被引：0
|
作者：
Liu Y. [1 ]
Chi Y. [1 ]
Tian W. [1 ]
Hou Y. [1 ]
Zhang J. [1 ]
机构：
[1] School of Civil Engineering, Chang'an University, Xi'an
来源：
Jianzhu Cailiao Xuebao/Journal of Building Materials | 2022年 / 25卷 / 03期
关键词：
Defoaming agent; Expander; Grouting material; Shrinkage;
D O I：
10.3969/j.issn.1007-9629.2022.03.013
中图分类号：
学科分类号：
摘要：
The effects of different types and dosages of expanders on the early shrinkage, fluidity, and strength after hardening of cement based grouting material were studied. The results show that after adding sulphoaluminate expander, the late expansion effect of cement based grouting material is better, but its early expansion effect is not ideal. After the calcium oxide expander is incorporated, both early and late expansion effects are improved, but it has adverse effects on its fluidity and strength. Plastic expander can significantly increase the vertical expansion rate of slurry in the plastic stage, but has a great influence on the early strength of cement based grouting material. Adding defoaming agent into the cement based grouting material with the plastic expander can effectively reduce the size of air bubbles and improve its pore structure on the premise of ensuring the expansibility, and it also has a great effect on improving the strength and achieving a better comprehensive technical effect. © 2022, Editorial Department of Journal of Building Materials. All right reserved.
引用
收藏
页码：307 / 313
页数：6
相关论文
共 13 条
  • [1] YE Xian, WU Wenxuan, HOU Weihong, Et al., Influence of expander on volume stability of high‑strength grouting material, Journal of Building Materials, 21, 6, (2018)
  • [2] WU Ruli, Review of the development history and quality situation analysis of Yunnan cement products industry (I), Development Guide of Building Materials, 17, 24, pp. 28-33, (2019)
  • [3] HONG Bin, Study on preparation and application of sleeving grouting material for assembly‑type building, (2017)
  • [4] MA Yiping, ZHU Beirong, TAN Muhua, Relationship between plastic tensile strength and shrinkage cracking of cement mortar, Journal of Building Materials, 6, 1, (2003)
  • [5] LI Jianxun, Research on expansion performance of sleeve grouting material, (2019)
  • [6] LI Lu, Experimental research on micro‑expansion concrete, (2008)
  • [7] WU Zhiming, Study on the influencing factors of the new expansive agent to limit expansion rate in concrete, (2017)
  • [8] XIAO Wenhui, Study on the influence of expansion agent components on the properties of cement slurry, Contemporary Chemical Industry, 46, 6, (2017)
  • [9] CHENG Pingjie, SONG Xiaojing, LI Beixing, Et al., Effect of plastic expansion agent on volume deformation and submicrostructure of prestressed prelude grouting, Chinese Journal of Ceramics, 33, 6, (2014)
  • [10] ZHANG Lifeng, Research and numerical simulation of early shrinkage of cement‑based materials, (2014)
12