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Magnesium phosphate cement composite material containing sulfur concentrate tailings and preparation method of magnesium phosphate cement composite material
The invention relates to the technical field of magnesium phosphate cement composite materials, in particular to the technical field of preparation of a magnesium phosphate cement composite material containing sulfur concentrate tailings. The invention discloses a magnesium phosphate cement composite material containing sulfur concentrate tailings and a preparation method thereof. The magnesium phosphate cement composite material is prepared from the following raw materials in parts by weight: 15-90 parts of sulfur concentrate tailings, 285-210 parts of dead burned MgO and 100 parts of phosphate, the sulfur concentrate tailings account for 5-40% of the total mass of the sulfur concentrate tailings and the dead burned MgO, and the dosage of a retarder accounts for 5-10% of the total mass of MgO and phosphate. According to the prepared magnesium phosphate cement composite material containing the sulfur concentrate tailings, due to the micro-aggregate effect of the sulfur concentrate tailings which are long in setting time, high in fluidity, good in construction performance and high in specific surface area, and components in the sulfur concentrate tailings participate in a hydration reaction to generate a new crystalline or gelatinous hydration product, magnesium phosphate cement is endowed with excellent strength, the 1d compressive strength reaches 37 MPa, and the magnesium phosphate cement has the good comprehensive performance. The 7d compressive strength reaches 66MPa, and the 28d compressive strength reaches 76MPa.
本发明涉及磷酸镁水泥复合材料的技术领域，尤其涉及一种含硫精尾矿的磷酸镁水泥复合材料制备的技术领域。一种含硫精尾矿的磷酸镁水泥复合材料及其制备方法，包括以下重量份的原料：硫精尾矿15‑90份、重烧MgO 285‑210份、磷酸盐100份，硫精尾矿占(硫精尾矿与重烧MgO)总质量的5‑40％，缓凝剂用量占(MgO+磷酸盐)总质量的5‑10％。本发明制备的含硫精尾矿磷酸镁水泥复合材料，凝结时间较长，流动度较高，施工性能好，高比表面积的硫精尾矿的微集料作用，以及硫精尾矿中组分参与水化反应，生成新的晶态或凝胶状水化产物，赋予磷酸镁水泥优异的强度，1d抗压强度达到37MPa,7d抗压强度达到66MPa，28d抗压强度达到76MPa。
Magnesium phosphate cement composite material containing sulfur concentrate tailings and preparation method of magnesium phosphate cement composite material
The invention relates to the technical field of magnesium phosphate cement composite materials, in particular to the technical field of preparation of a magnesium phosphate cement composite material containing sulfur concentrate tailings. The invention discloses a magnesium phosphate cement composite material containing sulfur concentrate tailings and a preparation method thereof. The magnesium phosphate cement composite material is prepared from the following raw materials in parts by weight: 15-90 parts of sulfur concentrate tailings, 285-210 parts of dead burned MgO and 100 parts of phosphate, the sulfur concentrate tailings account for 5-40% of the total mass of the sulfur concentrate tailings and the dead burned MgO, and the dosage of a retarder accounts for 5-10% of the total mass of MgO and phosphate. According to the prepared magnesium phosphate cement composite material containing the sulfur concentrate tailings, due to the micro-aggregate effect of the sulfur concentrate tailings which are long in setting time, high in fluidity, good in construction performance and high in specific surface area, and components in the sulfur concentrate tailings participate in a hydration reaction to generate a new crystalline or gelatinous hydration product, magnesium phosphate cement is endowed with excellent strength, the 1d compressive strength reaches 37 MPa, and the magnesium phosphate cement has the good comprehensive performance. The 7d compressive strength reaches 66MPa, and the 28d compressive strength reaches 76MPa.
本发明涉及磷酸镁水泥复合材料的技术领域，尤其涉及一种含硫精尾矿的磷酸镁水泥复合材料制备的技术领域。一种含硫精尾矿的磷酸镁水泥复合材料及其制备方法，包括以下重量份的原料：硫精尾矿15‑90份、重烧MgO 285‑210份、磷酸盐100份，硫精尾矿占(硫精尾矿与重烧MgO)总质量的5‑40％，缓凝剂用量占(MgO+磷酸盐)总质量的5‑10％。本发明制备的含硫精尾矿磷酸镁水泥复合材料，凝结时间较长，流动度较高，施工性能好，高比表面积的硫精尾矿的微集料作用，以及硫精尾矿中组分参与水化反应，生成新的晶态或凝胶状水化产物，赋予磷酸镁水泥优异的强度，1d抗压强度达到37MPa,7d抗压强度达到66MPa，28d抗压强度达到76MPa。
Magnesium phosphate cement composite material containing sulfur concentrate tailings and preparation method of magnesium phosphate cement composite material
一种含硫精尾矿的磷酸镁水泥复合材料及其制备方法
WANG LIYAN (author) / ZHAO LI (author) / BI FEI (author) / XIAO SHANSHAN (author) / LIANG CHEN (author) / LIU RUINAN (author) / MENG XIANGRUI (author)
2024-11-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Magnesium phosphate cement-based composite material property modifying additive
| European Patent Office | 2016
| European Patent Office | 2020