Source Journal of Chinese Scientific and Technical Papers
Included as T2 Level in the High-Quality Science and Technology Journals in the Field of Architectural Science
Core Journal of RCCSE
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Volume 56 Issue 4
Apr.  2026
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Article Contents
LI Fudong, ZHU Cheng, JIAN Yongzhou, ZHANG Jian, LAN Haining, WU Ronghua. Research on the Performance of a Novel Cement-Based Grouting Material with Composite Muck for Shield Tunnels[J]. INDUSTRIAL CONSTRUCTION, 2026, 56(4): 199-207. doi: 10.3724/j.gyjzG24042810
Citation: LI Fudong, ZHU Cheng, JIAN Yongzhou, ZHANG Jian, LAN Haining, WU Ronghua. Research on the Performance of a Novel Cement-Based Grouting Material with Composite Muck for Shield Tunnels[J]. INDUSTRIAL CONSTRUCTION, 2026, 56(4): 199-207. doi: 10.3724/j.gyjzG24042810

Research on the Performance of a Novel Cement-Based Grouting Material with Composite Muck for Shield Tunnels

doi: 10.3724/j.gyjzG24042810
  • Received Date: 2024-04-28
    Available Online: 2026-06-06
  • Publish Date: 2026-04-20
  • Based on a shield tunnel project of Nanjing Metro, a method was developed to reuse composite shield muck by utilizing fine sand and silty clay as replacement materials for conventional backfill grouting materials. The influence of factors such as the water-to-binder(cement + fly ash) ratio, cement-to-fly ash ratio, and binder-to-clay ratio on the performance of composite muck slurry was revealed, ultimately obtaining an optimal slurry mix proportion. The results showed that the composite muck could replace raw materials for backfill grouting to produce a muck slurry that met field requirements. The optimal mix proportion obtained was as follows: a water-to-binder ratio of 0.7, cement-to-fly ash ratio of 0.6, binder-to-clay ratio of 0.6, clay-to-sand ratio of 0.2, with a substitution ratio of 0.75. Under this mix proportion, the slurry demonstrated significant advantages in strength and bleeding rate while maintaining good fluidity, which could reduce costs by up to 37.8%.
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