Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Solid waste light coal gangue sprayed concrete and preparation method thereof
The invention relates to the technical field of concrete, in particular to solid waste light coal gangue sprayed concrete and a preparation method thereof, and aims to solve the problems of low bonding strength, poor mechanical property and the like of sprayed concrete in the prior art. In the raw materials of the sprayed concrete, the mass ratio of cement to standard sand is 1:(0.4-2.2), the water-cement ratio is 0.5:1, the standard sand is replaced by the coal gangue by 40%-80%, and PVA fibers account for 0.5%-1.5% of the cement. According to the sprayed concrete material prepared from the industrial solid waste coal gangue, the bonding strength and the compressive strength of sprayed concrete are effectively improved, the production cost is reduced, environmental pollution is reduced, and good social and economic double benefits are achieved.
本发明涉及混凝土技术领域，具体为一种固废轻型煤矸石喷射混凝土及其制备方法，旨在解决现有技术领域中喷射混凝土黏结强度低，力学性能差等问题。该喷射混凝土的原料中，水泥与标准砂的质量比为1：0.4～2.2，水灰比为0.5：1，煤矸石替换标准砂40％～80％，PVA纤维占水泥比为0.5％～1.5％。本发明使用工业固体废料煤矸石所制备的喷射混凝土材料，有效提高了喷射混凝土的黏结和抗压强度，降低了生产成本且减少了环境污染，具有良好的社会和经济双重效益。
Solid waste light coal gangue sprayed concrete and preparation method thereof
The invention relates to the technical field of concrete, in particular to solid waste light coal gangue sprayed concrete and a preparation method thereof, and aims to solve the problems of low bonding strength, poor mechanical property and the like of sprayed concrete in the prior art. In the raw materials of the sprayed concrete, the mass ratio of cement to standard sand is 1:(0.4-2.2), the water-cement ratio is 0.5:1, the standard sand is replaced by the coal gangue by 40%-80%, and PVA fibers account for 0.5%-1.5% of the cement. According to the sprayed concrete material prepared from the industrial solid waste coal gangue, the bonding strength and the compressive strength of sprayed concrete are effectively improved, the production cost is reduced, environmental pollution is reduced, and good social and economic double benefits are achieved.
本发明涉及混凝土技术领域，具体为一种固废轻型煤矸石喷射混凝土及其制备方法，旨在解决现有技术领域中喷射混凝土黏结强度低，力学性能差等问题。该喷射混凝土的原料中，水泥与标准砂的质量比为1：0.4～2.2，水灰比为0.5：1，煤矸石替换标准砂40％～80％，PVA纤维占水泥比为0.5％～1.5％。本发明使用工业固体废料煤矸石所制备的喷射混凝土材料，有效提高了喷射混凝土的黏结和抗压强度，降低了生产成本且减少了环境污染，具有良好的社会和经济双重效益。
Solid waste light coal gangue sprayed concrete and preparation method thereof
一种固废轻型煤矸石喷射混凝土及其制备方法
XU KAI (Autor:in) / HE RUI (Autor:in) / WANG YAN (Autor:in) / YU LIWU (Autor:in) / ZHAO XIANGMING (Autor:in) / LU XINYUAN (Autor:in)
21.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Mining sprayed concrete based on coal gangue and preparation method thereof
| Europäisches Patentamt | 2023
Special accelerator for coal gangue-based sprayed concrete
| Europäisches Patentamt | 2015
Preparation method of reinforced non-spontaneous combustion coal gangue aggregate sprayed concrete
| Europäisches Patentamt | 2024
Preparation device and construction method of gangue sprayed concrete for coal mine tunnel
| Europäisches Patentamt | 2023
Coal gangue type concrete and preparation method thereof
| Europäisches Patentamt | 2023