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Phosphogypsum-based road base material and preparation method thereof
The invention discloses an ardealite-based road base material and a preparation method thereof, and the material comprises the following raw materials by mass: 84-92% of ardealite, 4-8% of magnesium oxide, 1-3% of magnesium chloride, 1-2% of mineral powder, 0.5-1% of cement, 0.25-0.5% of gypsum, 0.25-0.5% of sodium bicarbonate, 0.25-0.5% of a polymer nanocomposite and 0.25-0.5% of a modifier. Wherein the modifier comprises ferrous sulfate and graphene oxide; the polymer nano composite material comprises nano silicon dioxide and an acrylic emulsion. Through the combined effect of the polymer nano composite material and the modifier, based on a series of principles of improving the surface performance of phosphogypsum particles, optimizing the form and aggregation position of the five-phase product, forming a composite water-resisting layer and the like, the cementing efficiency of the five-phase product is improved, and the technical problems of low strength and poor water stability of phosphogypsum are fundamentally solved.
本发明公开了一种磷石膏基道路基层材料及其制备方法，所述材料按质量百分比计，包括以下原料：磷石膏84～92％、氧化镁4～8％、氯化镁1～3％、矿粉1～2％、水泥0.5～1％、石膏0.25～0.5％、碳酸氢钠0.25～0.5％、聚合物纳米复合材料0.25～0.5％和改性剂0.25～0.5％；其中，所述改性剂包括硫酸亚铁与石墨烯氧化物；所述聚合物纳米复合材料包括纳米二氧化硅和丙烯酸乳液。本发明通过聚合物纳米复合材料和改性剂的联合作用，基于改善磷石膏颗粒表面性能、优化5相产物形态和聚集位置、形成复合隔水层等系列原理，提升了5相产物的胶结效率，从根本上解决了磷石膏强度低和水稳定性差的技术难题。
Phosphogypsum-based road base material and preparation method thereof
The invention discloses an ardealite-based road base material and a preparation method thereof, and the material comprises the following raw materials by mass: 84-92% of ardealite, 4-8% of magnesium oxide, 1-3% of magnesium chloride, 1-2% of mineral powder, 0.5-1% of cement, 0.25-0.5% of gypsum, 0.25-0.5% of sodium bicarbonate, 0.25-0.5% of a polymer nanocomposite and 0.25-0.5% of a modifier. Wherein the modifier comprises ferrous sulfate and graphene oxide; the polymer nano composite material comprises nano silicon dioxide and an acrylic emulsion. Through the combined effect of the polymer nano composite material and the modifier, based on a series of principles of improving the surface performance of phosphogypsum particles, optimizing the form and aggregation position of the five-phase product, forming a composite water-resisting layer and the like, the cementing efficiency of the five-phase product is improved, and the technical problems of low strength and poor water stability of phosphogypsum are fundamentally solved.
本发明公开了一种磷石膏基道路基层材料及其制备方法，所述材料按质量百分比计，包括以下原料：磷石膏84～92％、氧化镁4～8％、氯化镁1～3％、矿粉1～2％、水泥0.5～1％、石膏0.25～0.5％、碳酸氢钠0.25～0.5％、聚合物纳米复合材料0.25～0.5％和改性剂0.25～0.5％；其中，所述改性剂包括硫酸亚铁与石墨烯氧化物；所述聚合物纳米复合材料包括纳米二氧化硅和丙烯酸乳液。本发明通过聚合物纳米复合材料和改性剂的联合作用，基于改善磷石膏颗粒表面性能、优化5相产物形态和聚集位置、形成复合隔水层等系列原理，提升了5相产物的胶结效率，从根本上解决了磷石膏强度低和水稳定性差的技术难题。
Phosphogypsum-based road base material and preparation method thereof
一种磷石膏基道路基层材料及其制备方法
TAO GANG (author) / LIU WENHUA (author) / LI WUGANG (author) / WU JUNFENG (author)
2024-12-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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