Early strength compound admixture for full mill tailing pasty fluid cemented filling material

The invention belongs to the technical field of mine filling, and specifically relates to an early strength compound admixture for a full mill tailing pasty fluid cemented filling material. The early strength compound admixture is prepared by mixing the following components in parts by weight: gypsu...

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Bibliographic Details
Main Author ZHENG JUANRONG
Format Patent
LanguageChinese
English
Published 05.02.2014
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 belongs to the technical field of mine filling, and specifically relates to an early strength compound admixture for a full mill tailing pasty fluid cemented filling material. The early strength compound admixture is prepared by mixing the following components in parts by weight: gypsum, lime and superfine limestone flour in a ratio of (10-20):(5-10):(85-70). The effect is the best when the addition amount is 7.5-12.5% by weight of total solid in the full mill tailing pasty fluid cemented filling material. The early strength compound admixture provided by the invention is wide in raw material source and simple in production process. By adding the early strength compound admixture provided by the invention, the mobility and stability of the full mill tailing pasty fluid cemented filling material are improved, the early compressive strength is remarkably improved, and the early strength compound admixture has better environmental and economic benefits.
Bibliography:Application Number: CN20131506531