A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention belongs to the technical field of building materials, and relates to resource utilization of industrial solid wastes, in particular to a method for preparing dry-mixed mortar from phosphorus II type anhydrite. The phosphorus type II anhydrous gypsum prepared industrially is used as a raw material, and the activator and the surfactant are combined to carry out activity excitation on the phosphorus type II anhydrous gypsum to prepare the dry-mixed mortar. The content of semi-hydrated gypsum in the phosphorus type II anhydrous gypsum is not higher than 2%, and the content of SiO2 in the main component is not higher than 15%. The exciting agent is one or more of alkali metal salts. The surfactant is one or more of calcium lignosulphonate, sodium lignosulphonate, sodium dodecyl benzene sulfonate and melamine. According to the invention, the phosphorus type II anhydrous gypsum is used as a raw material, so that the problems of scumming, poor physical and mechanical properties and the like of a phosphorus building gypsum plastering gypsum product are avoided, and a new application way is opened up for resource utilization of phosphogypsum.
本发明属于建筑材料技术领域，涉及工业固废的资源化利用，具体为一种磷Ⅱ型无水石膏制备干混砂浆的方法。本发明以工业制备的磷Ⅱ型无水石膏为原料并结合激发剂和表面活性剂对磷Ⅱ型无水石膏进行活性激发制备干混砂浆。本发明中磷Ⅱ型无水石膏中半水石膏含量不高于2%，主要成分中SiO2含量不高于15%。所用激发剂为碱金属盐其中的一种或几种。表面活性剂为木质素磺酸钙、木质素磺酸钠、十二烷基苯磺酸钠、三聚氰胺其中的一种或几种。本发明以磷Ⅱ型无水石膏为原料，避免了磷建筑石膏抹灰石膏产品泛霜、物理力学性能差等问题，为磷石膏资源化利用开辟了新的应用途径。
The invention belongs to the technical field of building materials, and relates to resource utilization of industrial solid wastes, in particular to a method for preparing dry-mixed mortar from phosphorus II type anhydrite. The phosphorus type II anhydrous gypsum prepared industrially is used as a raw material, and the activator and the surfactant are combined to carry out activity excitation on the phosphorus type II anhydrous gypsum to prepare the dry-mixed mortar. The content of semi-hydrated gypsum in the phosphorus type II anhydrous gypsum is not higher than 2%, and the content of SiO2 in the main component is not higher than 15%. The exciting agent is one or more of alkali metal salts. The surfactant is one or more of calcium lignosulphonate, sodium lignosulphonate, sodium dodecyl benzene sulfonate and melamine. According to the invention, the phosphorus type II anhydrous gypsum is used as a raw material, so that the problems of scumming, poor physical and mechanical properties and the like of a phosphorus building gypsum plastering gypsum product are avoided, and a new application way is opened up for resource utilization of phosphogypsum.
本发明属于建筑材料技术领域，涉及工业固废的资源化利用，具体为一种磷Ⅱ型无水石膏制备干混砂浆的方法。本发明以工业制备的磷Ⅱ型无水石膏为原料并结合激发剂和表面活性剂对磷Ⅱ型无水石膏进行活性激发制备干混砂浆。本发明中磷Ⅱ型无水石膏中半水石膏含量不高于2%，主要成分中SiO2含量不高于15%。所用激发剂为碱金属盐其中的一种或几种。表面活性剂为木质素磺酸钙、木质素磺酸钠、十二烷基苯磺酸钠、三聚氰胺其中的一种或几种。本发明以磷Ⅱ型无水石膏为原料，避免了磷建筑石膏抹灰石膏产品泛霜、物理力学性能差等问题，为磷石膏资源化利用开辟了新的应用途径。
Method for preparing dry-mixed mortar from phosphorus type II anhydrite
一种磷Ⅱ型无水石膏制备干混砂浆的方法
2023-08-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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