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Influence of Triethanolamine and Rapid Hardening Sulfoaluminate Cement on Performance of Backfill Grouting in Shield Engineering
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Banghong SONG1, Fanlu MIN1, Jianfeng ZHANG2, Mingqing LI2, Yazhou ZHANG3, Zhongqiang FANG4, Lei ZHANG3, Xiaopeng ZHAO3
Journal of the Chinese Ceramic Society | 2022, 50(11) : 2886 - 2896
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Journal of the Chinese Ceramic Society | 2022, 50(11): 2886-2896
• Research Articles •
Influence of Triethanolamine and Rapid Hardening Sulfoaluminate Cement on Performance of Backfill Grouting in Shield Engineering
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Banghong SONG1, Fanlu MIN1, Jianfeng ZHANG2, Mingqing LI2, Yazhou ZHANG3, Zhongqiang FANG4, Lei ZHANG3, Xiaopeng ZHAO3
Affiliations
  • 1.College of Civil and Transportation Engineering, Hohai University, Nanjing 210024, China
  • 2.College of Mechanics and Materials, Hohai University, Nanjing 211100, China
  • 3.CCCC Tunnel Engineering Co., Ltd., Beijing 100102, China
  • 4.China Design Group Co. Ltd., Nanjing 210014, China

    • SONG Banghong (1996-), male, Master candidate. E-mail:

About Author:

SONG Banghong (1996-), male, Master candidate. E-mail:

Published: 2022-11-20 doi: 10.14062/j.issn.0454-5648.20220195
Outline
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Aiming at the problem that the backfill grouting of the shield project must have a short setting time and maintain good fluidity, Rapid hardening sulfoaluminate cement (R·SAC) and triethanolamine (TEA) are used as external accelerated setting materials, Analysis of the influence law and microscopic mechanism of the two on grout properties. The results show that with the increase of R·SAC, the setting time of the grout decreases from 9.5 h to 2.0 h, but the fluidity loss at 150 min is about 50%; With 0.6% dosage of TEA as the inflection point, the setting time and fluidity of the grout both increased first and then decreased; In compound blending, The two have a synergistic effect on grout hydration, rapid hydration in the initial stage, shortened setting time, and TEA deflocculation improves grout fluidity and slows down the loss of fluidity over time; By adding 15% R·SAC and 0.05% TEA, a fast-setting and high-fluidity backfill with a setting time of 6 h and a fluidity of 250 mm in 150 min can be prepared.

backfill grouting  /  accelerator material  /  triethanolamine  /  fluidity loss over time  /  hydration
宋帮红, 闵凡路, 张建峰, 李明清, 张亚洲, 方忠强, 张雷, 赵小鹏. 三乙醇胺和快硬硫铝酸盐水泥对盾构壁后注浆浆体性能的影响. 硅酸盐学报, 2022 , 50 (11) : 2886 -2896 . DOI: 10.14062/j.issn.0454-5648.20220195
Banghong SONG, Fanlu MIN, Jianfeng ZHANG, Mingqing LI, Yazhou ZHANG, Zhongqiang FANG, Lei ZHANG, Xiaopeng ZHAO. Influence of Triethanolamine and Rapid Hardening Sulfoaluminate Cement on Performance of Backfill Grouting in Shield Engineering[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (11) : 2886 -2896 . DOI: 10.14062/j.issn.0454-5648.20220195
Appendix
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Year 2022 volume 50 Issue 11
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Article Info
doi: 10.14062/j.issn.0454-5648.20220195
  • Receive Date：2022-03-20
  • Online Date：2026-10-20
  • Published：2022-11-20
Article Data
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History
  • Received：2022-03-20
  • Revised：2022-05-23
Funding
Affiliations
    1.College of Civil and Transportation Engineering, Hohai University, Nanjing 210024, China
    2.College of Mechanics and Materials, Hohai University, Nanjing 211100, China
    3.CCCC Tunnel Engineering Co., Ltd., Beijing 100102, China
    4.China Design Group Co. Ltd., Nanjing 210014, China

Corresponding:

MIN Fanlu (1985-), male, Ph.D., Associate Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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