Coal gangue roadway spraying material and preparation method thereof

The invention relates to the technical field of roadway spraying materials, and provides a coal gangue roadway spraying material and a preparation method thereof. Sequentially mixing the powder-removed coal gangue, sand, slag powder, fly ash, silica fume, gypsum, cement, calcium chloride, copper oxi...

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Main Authors ZHANG YUXUAN, YAN GUANGMAO, LEE GUN-WOO, WANG JUN, FENG JING, QU CHENKAI, SONG JIANBO, TANIKURA
Format Patent
LanguageChinese
English
Published 11.11.2022
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 relates to the technical field of roadway spraying materials, and provides a coal gangue roadway spraying material and a preparation method thereof. Sequentially mixing the powder-removed coal gangue, sand, slag powder, fly ash, silica fume, gypsum, cement, calcium chloride, copper oxide, barium sulfate, fibers and an additive to obtain a solid raw material; and mixing the solid raw material with an alkaline activator, a polycarboxylate superplasticizer and water, and curing to obtain the coal gangue roadway spraying material. The preparation technology is simple, the production efficiency is high, operation is easy and stable, control is convenient, and automatic operation is easy to achieve. The obtained coal gangue roadway spraying material is low in cost, carbon emission is reduced, the problem of accumulation of a large amount of industrial solid waste is solved, the resource utilization rate is increased, and the current green and low-carbon call is met; the coal gangue and the cementing m
Bibliography:Application Number: CN202211012829