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- W2382078416 abstract "Coal gangue foam concrete for filling with density of 800-1200 kg / m3 was prepared from uncalcined 5 mm coal gangue particle and Portland cement. Compatibility of early strength agent with coal gangue foam slurry,effect of early strength agent on early strength,and influence factors of compressive strength of the foam concrete were experimentally studied,stress-strain curves of the foam concrete were measured,and fracture morphologies of the foam concrete were observed. It has shown that,3 kinds of early strength agent all have good compatibility with coal gangue foam slurry,calcium chloride has the best effect on early strength,compressive strength of the foam concrete increases with increase of density,extend of curing time,increases of content and grade of cement,compressive strength of the foam concrete not only do not decrease but increase under moist conditions; the foam concrete still maintains a greater stress for a period of time when fractured,pore size and in-homogeneity of pore distribution increases with the decreases of density of the foam concrete." @default.
- W2382078416 created "2016-06-24" @default.
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- W2382078416 date "2015-01-01" @default.
- W2382078416 modified "2023-09-24" @default.
- W2382078416 title "Preparation and Properties on Coal Gangue Foam Concrete for Filling" @default.
- W2382078416 hasPublicationYear "2015" @default.
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