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ECONOMICAL HIGH-STRENGTH QUICK-HARDENING GROUTING MATERIAL AND GROUTING REINFORCEMENT METHOD FOR SOFT ROCK TUNNEL
An economical high-strength quick-hardening grouting material includes ordinary Portland cement, a quick-hardening sulphoaluminate gelling agent and water. The ratio of the mass of water to the sum of the mass of the ordinary Portland cement and the mass of quick hardening sulphoaluminate gelling agent is 0.46:1. The ratio of the mass of the quick-hardening sulphoaluminate gelling agent to the mass of the ordinary Portland cement is (0.67-1.5):1. The initial setting time of the grouting reinforcement material is 40±5 min, and the average compressive strength of a cube solidified for 4 hours is higher than or equal to 10 MPa.
ECONOMICAL HIGH-STRENGTH QUICK-HARDENING GROUTING MATERIAL AND GROUTING REINFORCEMENT METHOD FOR SOFT ROCK TUNNEL
An economical high-strength quick-hardening grouting material includes ordinary Portland cement, a quick-hardening sulphoaluminate gelling agent and water. The ratio of the mass of water to the sum of the mass of the ordinary Portland cement and the mass of quick hardening sulphoaluminate gelling agent is 0.46:1. The ratio of the mass of the quick-hardening sulphoaluminate gelling agent to the mass of the ordinary Portland cement is (0.67-1.5):1. The initial setting time of the grouting reinforcement material is 40±5 min, and the average compressive strength of a cube solidified for 4 hours is higher than or equal to 10 MPa.
ECONOMICAL HIGH-STRENGTH QUICK-HARDENING GROUTING MATERIAL AND GROUTING REINFORCEMENT METHOD FOR SOFT ROCK TUNNEL
CHEN JIANXUN (Autor:in) / CHEN LIJUN (Autor:in) / LUO YANBIN (Autor:in) / LIU WEIWEI (Autor:in) / WANG CHUANWU (Autor:in)
11.03.2021
Patent
Elektronische Ressource
Englisch
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