›› 2016, Vol. 30 ›› Issue (3): 395-398.

• 工程实录 • 上一篇    下一篇

碳酸钠对复合水泥浆性能影响的试验研究

刘晶晶,王 伟,张迎春,张 鹏,王修蛟,董树巍   

  1. (河北建设勘察研究院有限公司,石家庄 050031)
  • 收稿日期:2016-02-05 修回日期:2016-03-04 出版日期:2016-06-20 发布日期:2016-06-21
  • 作者简介:刘晶晶(1981-),男,高级工程师,研究方向为岩土工程设计、施工与管理。

Effect of Sodium Carbonate on the Performance of Composite Slurries

LIU Jingjing, Wang Wei, ZHANG Yingchun, ZHANG Peng, WANG Xiujiao, DONG Shuwei   

  1. (Hebei Research Institute of Construction & Geotechnical Investigation Co., Ltd., Shijiazhuang 050031)
  • Received:2016-02-05 Revised:2016-03-04 Online:2016-06-20 Published:2016-06-21

摘要: 通过试验研究碳酸钠对复合水泥浆的流动性、凝结时间、结石率及抗压强度的影响,探讨碳酸钠最佳掺量及其促凝机理。结果表明:随着碳酸钠掺量的增加,流动性逐渐下降,凝结时间由缩短趋势转变为延长趋势,抗压强度逐渐降低,得到碳酸钠最佳掺量为5%,流动性随时间变化下降最快,凝结时间最短,结石率较高,同时满足强度要求。

关键词: 碳酸钠, 流动性, 凝结时间, 结石率, 抗压强度, 最佳掺量

Abstract: The influence of sodium carbonate on the composite slurry fluidity, setting time, crystallization rate and compressive strength were studied by experimental research, the optimal amount of sodium carbonate and procoagulant mechanism were explored. The result showed that: with the increase of sodium content, the fluidity reduced, setting time extended and then shortened, and compressive strength gradually decreased. The results showed that the best content of sodium carbonate was 5 percent, and liquidity decreases with the fastest time, shortest setting time and high stone rate, and it can meet the strength requirements. Sodium carbonate can eliminate the retarding effect of the cement plaster, accelerate the rate of hydration of cement and precipitate hydration products, so as to achieve quicksetting effect.

Key words: Sodium Carbonate, Fluidity, Setting time, Crystallization Rate, Compressive Strength, Optimum Content