A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Calcination-free phosphogypsum brick and manufacturing method thereof
The invention discloses a calcination-free phosphogypsum brick and a manufacturing method thereof, and belongs to the field of building materials. The formula comprises phosphogypsum, aggregate, cement and an alkaline activator. The preparation method comprises the following steps: proportionally mixing the raw materials, stirring, crushing, carrying out extrusion molding, and curing to finally obtain the finished product calcination-free phosphogypsum brick. The calcination-free phosphogypsum brick prepared by the method is high in compression strength and breaking strength and good in waterresistance, freezing resistance and durability. According to the invention, the main raw materials are a large amount of solid wastes such as phosphogypsum, aggregate and the like, and the wastes areactivated and reasonably doped into the phosphogypsum brick, so that complicated pretreatment processes such as washing, drying, calcining and the like of phosphogypsum are avoided, and greenhouse gassuch as CO2, NO2, SO2 and the like, wastewater and secondary solid wastes are not discharged. According to the method, the utilization rate of phosphogypsum is greatly increased, accumulation of phosphogypsum is reduced, the land pollution rate is reduced, and great contribution is made to environmental protection.
本发明公开了一种免煅烧磷石膏砖及其制作方法，属于建筑材料领域。其配方包括磷石膏、骨料、水泥和碱性激发剂。其制作方法包括将原料按比例混合，搅拌并破碎后挤压成型并养护，最终得到成品免煅烧磷石膏砖。本发明制作出来的免煅烧磷石膏砖抗压、抗折强度高，耐水性、抗冻性和耐久性好。本发明的主要原料是磷石膏、骨料等大宗固体废弃物，把这些废弃物通过活化处理并合理地掺入到磷石膏砖中，避免了磷石膏繁杂的预处理工艺如水洗、干燥、煅烧等，不产生不排放CO、NO、SO等温室性气体、废水和二次固体废弃物。本发明大大提高磷石膏的利用率，减少磷石膏的堆积，降低了土地的污染率，为保护环境作出了巨大贡献。
Calcination-free phosphogypsum brick and manufacturing method thereof
The invention discloses a calcination-free phosphogypsum brick and a manufacturing method thereof, and belongs to the field of building materials. The formula comprises phosphogypsum, aggregate, cement and an alkaline activator. The preparation method comprises the following steps: proportionally mixing the raw materials, stirring, crushing, carrying out extrusion molding, and curing to finally obtain the finished product calcination-free phosphogypsum brick. The calcination-free phosphogypsum brick prepared by the method is high in compression strength and breaking strength and good in waterresistance, freezing resistance and durability. According to the invention, the main raw materials are a large amount of solid wastes such as phosphogypsum, aggregate and the like, and the wastes areactivated and reasonably doped into the phosphogypsum brick, so that complicated pretreatment processes such as washing, drying, calcining and the like of phosphogypsum are avoided, and greenhouse gassuch as CO2, NO2, SO2 and the like, wastewater and secondary solid wastes are not discharged. According to the method, the utilization rate of phosphogypsum is greatly increased, accumulation of phosphogypsum is reduced, the land pollution rate is reduced, and great contribution is made to environmental protection.
本发明公开了一种免煅烧磷石膏砖及其制作方法，属于建筑材料领域。其配方包括磷石膏、骨料、水泥和碱性激发剂。其制作方法包括将原料按比例混合，搅拌并破碎后挤压成型并养护，最终得到成品免煅烧磷石膏砖。本发明制作出来的免煅烧磷石膏砖抗压、抗折强度高，耐水性、抗冻性和耐久性好。本发明的主要原料是磷石膏、骨料等大宗固体废弃物，把这些废弃物通过活化处理并合理地掺入到磷石膏砖中，避免了磷石膏繁杂的预处理工艺如水洗、干燥、煅烧等，不产生不排放CO、NO、SO等温室性气体、废水和二次固体废弃物。本发明大大提高磷石膏的利用率，减少磷石膏的堆积，降低了土地的污染率，为保护环境作出了巨大贡献。
Calcination-free phosphogypsum brick and manufacturing method thereof
一种免煅烧磷石膏砖及其制作方法
LI XUEFEI (author) / LIU DEBANG (author) / HE XUEFENG (author) / LIU QIAN (author)
2020-09-08
Patent
Electronic Resource
Chinese
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