Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Coal mine waste based geopolymer cementing material and preparation method thereof
The invention discloses a coal mine waste based geopolymer cementing material and a preparation method thereof, and belongs to the technical field of waste comprehensive utilization and building material preparation. An alkaline dry powder excitant prepared by mixing sodium hydroxide and calcium carbonate is adopted to replace the traditional sodium hydroxide solution excitant, and is mixed with coal gangue, fly ash and standard sand to prepare the coal gangue-based geopolymer cementing material, wherein the coal gangue is natural coal gangue from Fuxin region of Liaoning Province; wherein thefly ash is fine ash collected from flue gas after coal combustion, and is a main solid waste discharged from a coal-fired power plant; wherein the standard sand is Xiamen ISO standard sand, and the mass ratio of the cement to the sand is 1: 3. The invention also provides the preparation method of the geopolymer cementing material. The used raw materials are wide in distribution and low in price,the preparation process is simple, recycling of coal mine waste is achieved, resources and energy are saved, environmental pollution is reduced, and therefore the environment is protected.
本发明公开了一种煤矿废弃物基地质聚合物胶凝材料及其制备方法，属于废弃物综合利用和建材制备技术领域。本发明采用氢氧化钠与碳酸钙混合制备的碱性干粉激发剂替代传统氢氧化钠溶液激发剂，并与煤矸石、粉煤灰和标准砂混合，制备煤矸石基地质聚合物胶凝材料。所述煤矸石为来自辽宁省阜新地区的自然煤矸石；所述粉煤灰为从煤燃烧后的烟气中收捕下来的细灰，是燃煤电厂排出的主要固体废物；所述标准砂为厦门艾思欧产标准砂，水泥与砂的质量比为1:3。本发明还提供了其制备方法。本发明所用的原材料分布广泛且价格低廉，制备工艺简单，实现了煤矿废弃物的再利用，有利于节约资源、能源，减少环境污染，从而保护环境。
Coal mine waste based geopolymer cementing material and preparation method thereof
The invention discloses a coal mine waste based geopolymer cementing material and a preparation method thereof, and belongs to the technical field of waste comprehensive utilization and building material preparation. An alkaline dry powder excitant prepared by mixing sodium hydroxide and calcium carbonate is adopted to replace the traditional sodium hydroxide solution excitant, and is mixed with coal gangue, fly ash and standard sand to prepare the coal gangue-based geopolymer cementing material, wherein the coal gangue is natural coal gangue from Fuxin region of Liaoning Province; wherein thefly ash is fine ash collected from flue gas after coal combustion, and is a main solid waste discharged from a coal-fired power plant; wherein the standard sand is Xiamen ISO standard sand, and the mass ratio of the cement to the sand is 1: 3. The invention also provides the preparation method of the geopolymer cementing material. The used raw materials are wide in distribution and low in price,the preparation process is simple, recycling of coal mine waste is achieved, resources and energy are saved, environmental pollution is reduced, and therefore the environment is protected.
本发明公开了一种煤矿废弃物基地质聚合物胶凝材料及其制备方法，属于废弃物综合利用和建材制备技术领域。本发明采用氢氧化钠与碳酸钙混合制备的碱性干粉激发剂替代传统氢氧化钠溶液激发剂，并与煤矸石、粉煤灰和标准砂混合，制备煤矸石基地质聚合物胶凝材料。所述煤矸石为来自辽宁省阜新地区的自然煤矸石；所述粉煤灰为从煤燃烧后的烟气中收捕下来的细灰，是燃煤电厂排出的主要固体废物；所述标准砂为厦门艾思欧产标准砂，水泥与砂的质量比为1:3。本发明还提供了其制备方法。本发明所用的原材料分布广泛且价格低廉，制备工艺简单，实现了煤矿废弃物的再利用，有利于节约资源、能源，减少环境污染，从而保护环境。
Coal mine waste based geopolymer cementing material and preparation method thereof
一种煤矿废弃物基地质聚合物胶凝材料及其制备方法
ZHANG DAMING (Autor:in) / SUN FANGJIN (Autor:in) / YU SHANSHAN (Autor:in) / REN FENGYU (Autor:in)
14.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Coal-based solid waste geopolymer cementing material and preparation method thereof
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2021
Alkali-activated coal gangue powder geopolymer cementing material and preparation method thereof
| Europäisches Patentamt | 2020
Metakaolin-based geopolymer cementing material and preparation method thereof
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2021