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A platform for research: civil engineering, architecture and urbanism
Low-cost multi-source solid waste filling cementing material as well as preparation method and application thereof
The invention relates to the field of mine filling cementing materials, in particular to a low-cost multi-source solid waste filling cementing material and a preparation method and application thereof. The cementing material comprises the following components in percentage by mass: 8-15% of desulfurized gypsum, 5-10% of quick lime, 15-25% of desulfurized fly ash, 50-65% of slag, 0-5% of waste glass and 0-5% of coal cinder. The slag, the desulfurized fly ash, the desulfurized gypsum, the waste glass, the coal cinder and other solid wastes are taken as main raw materials and are combined together for development, and meanwhile, a small amount of quicklime is doped to provide an alkaline environment and CaO, so that a novel filling cementing agent is used for replacing cement; all the materials are proportioned according to the proportion, dried, crushed and ground until the Blaine specific surface area is 320-450m < 2 >/kg, and a filling body formed by mixing the obtained mixture serving as a cementing material with coarse aggregates such as tailings and coal gangue and water has the excellent properties of high early-stage and later-stage strength, high forming speed, easiness in demolding and the like, and is a low-cost and high-performance environment-friendly filling cementing material.
本发明涉及矿山充填胶凝材料领域，尤其涉及一种低成本多源固废充填胶凝材料及其制备方法和应用。胶凝材料包括以下质量含量的成分：脱硫石膏脱硫石膏8％～15％，生石灰5～10％，脱硫灰15～25％，矿渣50～65％，废玻璃0～5％，煤渣0～5％。本发明以矿渣及脱硫灰、脱硫石膏、废玻璃、煤渣等固体废弃物为主要原材料，结合起来共同进行开发，同时掺入少量的生石灰提供碱性环境和CaO，作为一种新型的充填胶结剂以取代水泥，各种材料按比例进行配比、烘干、破碎、磨细至勃氏比表面积在320～450m2/kg，得到的混合料作为胶凝材料与尾砂、煤矸石等粗骨料加水混合后的充填体具有早期、后期强度高，成型快，易脱模等多方面优良性能，是一种低成本、高性能的环保型充填胶凝材料。
Low-cost multi-source solid waste filling cementing material as well as preparation method and application thereof
The invention relates to the field of mine filling cementing materials, in particular to a low-cost multi-source solid waste filling cementing material and a preparation method and application thereof. The cementing material comprises the following components in percentage by mass: 8-15% of desulfurized gypsum, 5-10% of quick lime, 15-25% of desulfurized fly ash, 50-65% of slag, 0-5% of waste glass and 0-5% of coal cinder. The slag, the desulfurized fly ash, the desulfurized gypsum, the waste glass, the coal cinder and other solid wastes are taken as main raw materials and are combined together for development, and meanwhile, a small amount of quicklime is doped to provide an alkaline environment and CaO, so that a novel filling cementing agent is used for replacing cement; all the materials are proportioned according to the proportion, dried, crushed and ground until the Blaine specific surface area is 320-450m < 2 >/kg, and a filling body formed by mixing the obtained mixture serving as a cementing material with coarse aggregates such as tailings and coal gangue and water has the excellent properties of high early-stage and later-stage strength, high forming speed, easiness in demolding and the like, and is a low-cost and high-performance environment-friendly filling cementing material.
本发明涉及矿山充填胶凝材料领域，尤其涉及一种低成本多源固废充填胶凝材料及其制备方法和应用。胶凝材料包括以下质量含量的成分：脱硫石膏脱硫石膏8％～15％，生石灰5～10％，脱硫灰15～25％，矿渣50～65％，废玻璃0～5％，煤渣0～5％。本发明以矿渣及脱硫灰、脱硫石膏、废玻璃、煤渣等固体废弃物为主要原材料，结合起来共同进行开发，同时掺入少量的生石灰提供碱性环境和CaO，作为一种新型的充填胶结剂以取代水泥，各种材料按比例进行配比、烘干、破碎、磨细至勃氏比表面积在320～450m2/kg，得到的混合料作为胶凝材料与尾砂、煤矸石等粗骨料加水混合后的充填体具有早期、后期强度高，成型快，易脱模等多方面优良性能，是一种低成本、高性能的环保型充填胶凝材料。
Low-cost multi-source solid waste filling cementing material as well as preparation method and application thereof
一种低成本多源固废充填胶凝材料及其制备方法和应用
ZHAO WENHUA (author) / JIANG PENGFEI (author) / CHEN JINYU (author) / LIU CHANG (author)
2023-04-07
Patent
Electronic Resource
Chinese
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