Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Lightweight coal gangue functional aggregate as well as preparation method and application thereof
The invention provides lightweight coal gangue functional aggregate as well as a preparation method and application thereof. The lightweight coal gangue functional aggregate comprises coal gangue, fly ash, rice hull ash and MnO2. Wherein the coal gangue is used as a main raw material, so that the resource utilization of solid wastes is realized, and the production cost of the lightweight aggregate is greatly reduced from the raw material cost; fly ash is used as a correction raw material and is used for adjusting the ratio of fluxing components to refractory components of the raw material; rice hull ash and MnO2 are compounded as a pore-forming agent, so that the porosity of the lightweight aggregate can be increased. The lightweight coal gangue functional aggregate disclosed by the invention has excellent performances of light weight, high strength, high water absorption and slow release of water, can realize comprehensive utilization of solid wastes, conforms to the national green sustainable development strategy, can make up for the current situation of resource shortage of natural lightweight aggregates, realizes an internal maintenance effect on UHPC, and has a good application prospect. Further, early shrinkage cracking of the UHPC is reduced, and the mechanical property and durability of the UHPC are improved.
本发明提供了一种轻质煤矸石功能骨料及其制备方法和应用。本发明的轻质煤矸石功能骨料，包括煤矸石、粉煤灰、稻壳灰、MnO2。其中，煤矸石作为主要原料实现了固废的资源化利用、从原材料成本上大大减少了轻骨料的生产成本；粉煤灰为校正原料，用来调节原材料的助熔成分和难熔成份的比值；复配稻壳灰和MnO2作为造孔剂，可增加轻骨料的孔隙率。本发明的轻质煤矸石功能骨料具有轻质、高强、高吸水、缓释水的优良性能，不仅可以实现固废的大综化利用、符合国家绿色可持续发展战略，还可以弥补天然轻集料资源短缺的现状，同时实现对UHPC的内养护作用，进而降低UHPC的早期收缩开裂、提升UHPC的力学性能及耐久性能。
Lightweight coal gangue functional aggregate as well as preparation method and application thereof
The invention provides lightweight coal gangue functional aggregate as well as a preparation method and application thereof. The lightweight coal gangue functional aggregate comprises coal gangue, fly ash, rice hull ash and MnO2. Wherein the coal gangue is used as a main raw material, so that the resource utilization of solid wastes is realized, and the production cost of the lightweight aggregate is greatly reduced from the raw material cost; fly ash is used as a correction raw material and is used for adjusting the ratio of fluxing components to refractory components of the raw material; rice hull ash and MnO2 are compounded as a pore-forming agent, so that the porosity of the lightweight aggregate can be increased. The lightweight coal gangue functional aggregate disclosed by the invention has excellent performances of light weight, high strength, high water absorption and slow release of water, can realize comprehensive utilization of solid wastes, conforms to the national green sustainable development strategy, can make up for the current situation of resource shortage of natural lightweight aggregates, realizes an internal maintenance effect on UHPC, and has a good application prospect. Further, early shrinkage cracking of the UHPC is reduced, and the mechanical property and durability of the UHPC are improved.
本发明提供了一种轻质煤矸石功能骨料及其制备方法和应用。本发明的轻质煤矸石功能骨料，包括煤矸石、粉煤灰、稻壳灰、MnO2。其中，煤矸石作为主要原料实现了固废的资源化利用、从原材料成本上大大减少了轻骨料的生产成本；粉煤灰为校正原料，用来调节原材料的助熔成分和难熔成份的比值；复配稻壳灰和MnO2作为造孔剂，可增加轻骨料的孔隙率。本发明的轻质煤矸石功能骨料具有轻质、高强、高吸水、缓释水的优良性能，不仅可以实现固废的大综化利用、符合国家绿色可持续发展战略，还可以弥补天然轻集料资源短缺的现状，同时实现对UHPC的内养护作用，进而降低UHPC的早期收缩开裂、提升UHPC的力学性能及耐久性能。
Lightweight coal gangue functional aggregate as well as preparation method and application thereof
一种轻质煤矸石功能骨料及其制备方法和应用
ZHANG GAOZHAN (Autor:in) / WANG MENGRU (Autor:in) / YANG JUN (Autor:in) / DING QINGJUN (Autor:in) / CHEN HAO (Autor:in) / HE YANG (Autor:in) / ZHU JIAHAO (Autor:in) / LIU LI (Autor:in) / ZHANG HAIFENG (Autor:in) / SHI JIALONG (Autor:in)
28.11.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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