A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-strength and corrosion-resistant wet spraying material for coal mine tunnel and construction process of high-strength and corrosion-resistant wet spraying material
The invention relates to the technical field of coal mine roadway spraying materials, and particularly discloses a high-strength and corrosion-resistant wet spraying material for a coal mine tunnel and a construction technology of the high-strength and corrosion-resistant wet spraying material for the coal mine tunnel. The spraying material comprises a solid raw material and water in the proportion of 0.35 to 0.45; the solid raw material comprises 15%-30% of cement, 20%-40% of sand, 20%-30% of stones, 5%-10% of coal ash, 10%-15% of mineral powder, 5%-10% of silica fume, 0.5-1.5 kg/m < 3 > hybrid fibers and 2%-20% of a cement additive; the hybrid fibers are two or more selected from steel fibers, glass fibers, carbon fibers or polypropylene fibers; and the lengths of the fibers are different. The spraying material obtained according to the proportion in the patent can still keep higher strength when being used in an acidic corrosion environment of the coal mine tunnel, and can meet the requirements of high stress, large deformation of soft rock, rock burst and high corrosion coal mine tunnel support.
本发明涉及煤矿巷道喷料技术领域，具体公开了一种煤矿巷道用高强度、耐腐蚀湿喷喷料及其施工工艺，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/m3的混杂纤维和2％‑20％的水泥添加剂，所述混杂纤维为钢纤维、玻璃纤维、碳纤维或聚丙烯纤维中的两种及以上，且各种纤维的长度不同。采用本专利中的配比得到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。
High-strength and corrosion-resistant wet spraying material for coal mine tunnel and construction process of high-strength and corrosion-resistant wet spraying material
The invention relates to the technical field of coal mine roadway spraying materials, and particularly discloses a high-strength and corrosion-resistant wet spraying material for a coal mine tunnel and a construction technology of the high-strength and corrosion-resistant wet spraying material for the coal mine tunnel. The spraying material comprises a solid raw material and water in the proportion of 0.35 to 0.45; the solid raw material comprises 15%-30% of cement, 20%-40% of sand, 20%-30% of stones, 5%-10% of coal ash, 10%-15% of mineral powder, 5%-10% of silica fume, 0.5-1.5 kg/m < 3 > hybrid fibers and 2%-20% of a cement additive; the hybrid fibers are two or more selected from steel fibers, glass fibers, carbon fibers or polypropylene fibers; and the lengths of the fibers are different. The spraying material obtained according to the proportion in the patent can still keep higher strength when being used in an acidic corrosion environment of the coal mine tunnel, and can meet the requirements of high stress, large deformation of soft rock, rock burst and high corrosion coal mine tunnel support.
本发明涉及煤矿巷道喷料技术领域，具体公开了一种煤矿巷道用高强度、耐腐蚀湿喷喷料及其施工工艺，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/m3的混杂纤维和2％‑20％的水泥添加剂，所述混杂纤维为钢纤维、玻璃纤维、碳纤维或聚丙烯纤维中的两种及以上，且各种纤维的长度不同。采用本专利中的配比得到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。
High-strength and corrosion-resistant wet spraying material for coal mine tunnel and construction process of high-strength and corrosion-resistant wet spraying material
一种煤矿巷道用高强度、耐腐蚀湿喷喷料及其施工工艺
2021-06-04
Patent
Electronic Resource
Chinese
| European Patent Office | 2020
| European Patent Office | 2020
| European Patent Office | 2020
High-strength anti-corrosion wear-resistant coating material
| European Patent Office | 2024
Thin spraying material for inorganic coal mine and construction method of thin spraying material
| European Patent Office | 2024