A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Inorganic high-strength and corrosion-resistant spray material for coal mine roadways and coating construction process thereof
The invention relates to the technical field of spray materials for coal mine roadways. The invention specifically discloses an inorganic high-strength and corrosion-resistant spray material for coalmine roadways and a coating construction process thereof. The spray material comprises solid raw materials and water, wherein the ratio of the water to the solid raw materials is 0.35-0.45. The solidraw materials comprise 15%-30% of cement, 20%-40% of sand, 20%-30% of pebbles, 5%-10% of coal ash, 10%-15% of mineral powder, 5%-10% of silica fume, 0.5-1.5 kg/m<3> of hybrid fibers and 1.97%-8.5% ofinorganic additives. The hybrid fibers are two or more of steel fibers, glass fibers, carbon fibers, ceramic fibers or basalt fibers, and the lengths of different fibers are different. When the spraymaterial is used in an acidic corrosive environment of a coal mine roadway, the spray material can still keep better strength, and can meet the requirements of high stress, large deformation of soft rock, rock burst and high-corrosivity coal mine roadway support.
本发明涉及煤矿巷道喷料技术领域，具体公开了煤矿巷道用无机高强度、耐腐蚀喷料及其涂敷施工工艺，喷料包括固体原料和水，水与固体原料的比例为0.35～0.45，固体原料包括15％‑30％的水泥、20％‑40％的砂子、20％‑30％的石子、5％‑10％的煤灰、10％‑15％的矿粉、5％‑10％的硅灰、0.5～1.5kg/m的混杂纤维和1.97％‑8.5％的无机添加剂，混杂纤维为钢纤维、玻璃纤维、碳纤维、陶瓷纤维或玄武岩纤维中的两种及以上，不同纤维的长度不同。采用本专利中的喷料在煤矿巷道酸性腐蚀环境下使用，依然能够保持较好的强度，能够满足高应力、软岩大变形、冲击地压及高腐蚀性煤矿巷道支护的需要。
Inorganic high-strength and corrosion-resistant spray material for coal mine roadways and coating construction process thereof
The invention relates to the technical field of spray materials for coal mine roadways. The invention specifically discloses an inorganic high-strength and corrosion-resistant spray material for coalmine roadways and a coating construction process thereof. The spray material comprises solid raw materials and water, wherein the ratio of the water to the solid raw materials is 0.35-0.45. The solidraw materials comprise 15%-30% of cement, 20%-40% of sand, 20%-30% of pebbles, 5%-10% of coal ash, 10%-15% of mineral powder, 5%-10% of silica fume, 0.5-1.5 kg/m<3> of hybrid fibers and 1.97%-8.5% ofinorganic additives. The hybrid fibers are two or more of steel fibers, glass fibers, carbon fibers, ceramic fibers or basalt fibers, and the lengths of different fibers are different. When the spraymaterial is used in an acidic corrosive environment of a coal mine roadway, the spray material can still keep better strength, and can meet the requirements of high stress, large deformation of soft rock, rock burst and high-corrosivity coal mine roadway support.
本发明涉及煤矿巷道喷料技术领域，具体公开了煤矿巷道用无机高强度、耐腐蚀喷料及其涂敷施工工艺，喷料包括固体原料和水，水与固体原料的比例为0.35～0.45，固体原料包括15％‑30％的水泥、20％‑40％的砂子、20％‑30％的石子、5％‑10％的煤灰、10％‑15％的矿粉、5％‑10％的硅灰、0.5～1.5kg/m的混杂纤维和1.97％‑8.5％的无机添加剂，混杂纤维为钢纤维、玻璃纤维、碳纤维、陶瓷纤维或玄武岩纤维中的两种及以上，不同纤维的长度不同。采用本专利中的喷料在煤矿巷道酸性腐蚀环境下使用，依然能够保持较好的强度，能够满足高应力、软岩大变形、冲击地压及高腐蚀性煤矿巷道支护的需要。
Inorganic high-strength and corrosion-resistant spray material for coal mine roadways and coating construction process thereof
煤矿巷道用无机高强度、耐腐蚀喷料及其涂敷施工工艺
2020-09-01
Patent
Electronic Resource
Chinese
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