Cement-based slurry non-dispersible in water for flowing water plugging and flowing water grouting plugging process

• Main Authors: LI DONGLI, YANG HONGJUN, LI SHENGSHENG, SUN BANGTAO, DENG YUN, HE WEN, YANG XUE, WANG YONG, XIANG JUNXING
• Format: Patent
• Language: Chinese; English
• Published: 10.11.2023
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; LIME, MAGNESIA; METALLURGY; MINING; REFRACTORIES; SHAFTS; SLAG; TREATMENT OF NATURAL STONE; TUNNELS

The invention discloses cement-based slurry which is not dispersed when encountering water and is used for plugging flowing water and a flowing water grouting plugging process. The cement-based slurry which is not dispersed when encountering water and is used for plugging flowing water is prepared from water, cement, table salt, triethanolamine and a composite additive, the weight ratio of the water to the cement is (0.75-1.25): 1, the weight of the table salt is 5-10 wt% per mill of the weight of the cement, the weight of the triethanolamine is 0.5-1 wt% per mill of the weight of the cement, and the weight of the composite additive is 3-10 wt% per mill of the weight of the cement. The flowing water grouting plugging process is a process for plugging and grouting flowing water in a roadway or a tunnel by using the cement-based slurry which is not dispersed when encountering water and used for flowing water grouting and water plugging. The cement-based slurry non-dispersible when encountering water for pluggin