Solid waste-based grouting material for mine water damage control roof filling, and preparation method thereof

The invention discloses a solid waste based grouting material for mine water damage control roof filling. The solid waste based grouting material comprises the following raw materials in parts by weight: 30-50 parts of recycled cement powder, 10-20 parts of fly ash, 10-20 parts of blast furnace mine...

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Bibliographic Details
Main Authors WU SHANYUAN, LI ZHAOFENG, ZHANG JIAN, WANG YANSHENG, HE JINGPING
Format Patent
LanguageChinese
English
Published 20.11.2020
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:The invention discloses a solid waste based grouting material for mine water damage control roof filling. The solid waste based grouting material comprises the following raw materials in parts by weight: 30-50 parts of recycled cement powder, 10-20 parts of fly ash, 10-20 parts of blast furnace mineral powder, 5-10 parts of desulfurized gypsum, 5-10 parts of clay, 80-120 parts of red mud soup, 2-3parts of a thickening agent, 2-3 parts of a water reducing agent and 1-2 parts of a stabilizer, wherein the recycled cement powder is prepared from the following steps: separating concrete componentsto obtain Portland cement, thermally activating the Portland cement waste, grinding, and sieving. According to the invention, all the materials are solid waste, so that the solid waste resource utilization rate is effectively increased, and the cost of the filling material is reduced; and different solid wastes are synergistically complemented, so that the slurry structure is optimized, the working performance of the slur
Bibliography:Application Number: CN202010656344