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A platform for research: civil engineering, architecture and urbanism
Phosphogypsum-based self-leveling mortar
The invention discloses phosphogypsum-based self-leveling mortar The phosphogypsum-based self-leveling mortar is prepared from the following raw materials: 30 to 50 parts of alpha-type high-strength gypsum, 0 to 20 parts of building gypsum powder, 5 to 15 parts of machine-made sand, 35 to 45 parts of phosphate rock tailings, 1 to 5 parts of fly ash, 0.1 to 0.5 part of cement, 0.1 to 0.2 part of awater reducing agent, 0.05 to 0.1 part of a water retaining agent, 0.05 to 0.1 part of an antifoaming agent and 0.05 to 0.1 part of redispersible latex powder. According to the phosphogypsum-based self-leveling mortar, a large amount of industrial solid waste ardealite and phosphorite tailings are used as main cementing materials and aggregates so that resource and valuable utilization of the solid waste is realized, pollution of the solid waste to soil and water resources is reduced, land resources are saved, and the comprehensive cost of self-leveling is reduced. According to the present invention, the fluidity is good, the good fluidity can be provided under the water cement ratio of about 1: 5, and the high strength can be formed within 1 d under the natural condition; after drying, the flexural strength reaches 8 Mpa or above, the compressive strength reaches 30 Mpa or above, and good fire resistance and heat preservation performance are achieved.
本发明公开了一种磷石膏基自流平砂浆，所述磷石膏基自流平砂浆由以下原料组成：α型高强石膏30～50份，建筑石膏粉0～20份，机制砂5～15份，磷矿尾矿渣35～45份，粉煤灰1～5份，水泥0.1～0.5份，减水剂0.1～0.2份，保水剂0.05～0.1份，消泡剂0.05～0.1份，可再分散乳胶粉0.05～0.1份。本磷石膏基自流平砂浆以大宗工业固体废弃物磷石膏以及磷矿尾矿渣作为主要胶凝材料和骨料，实现了固体废弃物的资源化、价值化利用，减少了其对土壤、水资源的污染，节约了土地资源，并且降低了自流平的综合成本。其流动性能良好，其较优实施例在1:5左右的水灰比下即可拥有较好的流动度，自然条件下1d内即可形成较高强度；其烘干后抗折强度达到8Mpa以上，抗压强度达到30Mpa以上，且具有良好的耐火保温性能。
Phosphogypsum-based self-leveling mortar
The invention discloses phosphogypsum-based self-leveling mortar The phosphogypsum-based self-leveling mortar is prepared from the following raw materials: 30 to 50 parts of alpha-type high-strength gypsum, 0 to 20 parts of building gypsum powder, 5 to 15 parts of machine-made sand, 35 to 45 parts of phosphate rock tailings, 1 to 5 parts of fly ash, 0.1 to 0.5 part of cement, 0.1 to 0.2 part of awater reducing agent, 0.05 to 0.1 part of a water retaining agent, 0.05 to 0.1 part of an antifoaming agent and 0.05 to 0.1 part of redispersible latex powder. According to the phosphogypsum-based self-leveling mortar, a large amount of industrial solid waste ardealite and phosphorite tailings are used as main cementing materials and aggregates so that resource and valuable utilization of the solid waste is realized, pollution of the solid waste to soil and water resources is reduced, land resources are saved, and the comprehensive cost of self-leveling is reduced. According to the present invention, the fluidity is good, the good fluidity can be provided under the water cement ratio of about 1: 5, and the high strength can be formed within 1 d under the natural condition; after drying, the flexural strength reaches 8 Mpa or above, the compressive strength reaches 30 Mpa or above, and good fire resistance and heat preservation performance are achieved.
本发明公开了一种磷石膏基自流平砂浆，所述磷石膏基自流平砂浆由以下原料组成：α型高强石膏30～50份，建筑石膏粉0～20份，机制砂5～15份，磷矿尾矿渣35～45份，粉煤灰1～5份，水泥0.1～0.5份，减水剂0.1～0.2份，保水剂0.05～0.1份，消泡剂0.05～0.1份，可再分散乳胶粉0.05～0.1份。本磷石膏基自流平砂浆以大宗工业固体废弃物磷石膏以及磷矿尾矿渣作为主要胶凝材料和骨料，实现了固体废弃物的资源化、价值化利用，减少了其对土壤、水资源的污染，节约了土地资源，并且降低了自流平的综合成本。其流动性能良好，其较优实施例在1:5左右的水灰比下即可拥有较好的流动度，自然条件下1d内即可形成较高强度；其烘干后抗折强度达到8Mpa以上，抗压强度达到30Mpa以上，且具有良好的耐火保温性能。
Phosphogypsum-based self-leveling mortar
一种磷石膏基自流平砂浆
HU HONG (author) / ZHANG ZHERUI (author) / ZHANG TAO (author) / XUE SHAOXIU (author) / SHI JIAHUA (author) / TIAN XIAOBO (author) / GONG YING (author) / RUAN YUNCHUN (author) / KUANG WENJUN (author)
2020-10-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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