Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Gypsum-based coal gangue stone and preparation method thereof
The invention provides a gypsum-based coal gangue stone and a preparation method thereof. According to the prepared gypsum-based coal gangue high-strength stone, coal gangue sand is used as fine aggregate of the stone, desulfurized gypsum and anhydrite are used as main cementing materials, ordinary Portland cement is used as a secondary cementing material, carbide slag powder and fly ash are used as auxiliary cementing materials, and steel fibers are used for improving the compression resistance and crack resistance of the stone; and the working performance of the mixture is improved by adopting the protein retarder, the polycarboxylate superplasticizer and the defoaming agent. The gypsum-based coal gangue high-strength stone material prepared by the method disclosed by the invention can consume a large amount of solid wastes such as anhydrite, coal gangue and the like, and meanwhile, the compressive strength reaches up to 20-40MPa, so that the requirements of most constructional engineering are met.
本发明提供一种石膏基煤矸石石材及其制备方法。所制备的石膏基煤矸石高强石材采用煤矸石砂作为石材的细集料，利用脱硫石膏和硬石膏作为主要胶凝材料，利用普通硅酸盐水泥作为次要胶凝材料，采用电石渣粉和粉煤灰作为辅助胶凝材料，采用钢纤维提高石材的抗压和抗裂能力，采用蛋白类缓凝剂、聚羧酸减水剂和消泡剂提高混合料的工作性能。本发明方法所制备的石膏基煤矸石高强石材可以在大量消耗硬石膏、煤矸石等固体废弃物的同时，实现抗压强度高达20～40MPa，满足大多数建筑工程的需求。
Gypsum-based coal gangue stone and preparation method thereof
The invention provides a gypsum-based coal gangue stone and a preparation method thereof. According to the prepared gypsum-based coal gangue high-strength stone, coal gangue sand is used as fine aggregate of the stone, desulfurized gypsum and anhydrite are used as main cementing materials, ordinary Portland cement is used as a secondary cementing material, carbide slag powder and fly ash are used as auxiliary cementing materials, and steel fibers are used for improving the compression resistance and crack resistance of the stone; and the working performance of the mixture is improved by adopting the protein retarder, the polycarboxylate superplasticizer and the defoaming agent. The gypsum-based coal gangue high-strength stone material prepared by the method disclosed by the invention can consume a large amount of solid wastes such as anhydrite, coal gangue and the like, and meanwhile, the compressive strength reaches up to 20-40MPa, so that the requirements of most constructional engineering are met.
本发明提供一种石膏基煤矸石石材及其制备方法。所制备的石膏基煤矸石高强石材采用煤矸石砂作为石材的细集料，利用脱硫石膏和硬石膏作为主要胶凝材料，利用普通硅酸盐水泥作为次要胶凝材料，采用电石渣粉和粉煤灰作为辅助胶凝材料，采用钢纤维提高石材的抗压和抗裂能力，采用蛋白类缓凝剂、聚羧酸减水剂和消泡剂提高混合料的工作性能。本发明方法所制备的石膏基煤矸石高强石材可以在大量消耗硬石膏、煤矸石等固体废弃物的同时，实现抗压强度高达20～40MPa，满足大多数建筑工程的需求。
Gypsum-based coal gangue stone and preparation method thereof
一种石膏基煤矸石石材及其制备方法
WANG QIONG (Autor:in) / WANG XIAO (Autor:in) / WANG YOUXIA (Autor:in) / ZHANG LIQIAN (Autor:in)
14.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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