Suitability of mine waste rocks as earth tailing storage embankment materials: environmental risk assessments

Maduka, Raphael Iweanya; Igwe, Ogbonnaya

doi:10.1007/s40808-021-01182-9

Cited by 1 publication

(1 citation statement)

References 54 publications

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“…Analyzing the reason for the increase in strength, with the growth of curing time cement hydration reaction is constantly enhanced; the generation of hydration products such as calcium alumina, calcium hydroxide, etc. constantly wrapped with CG and AS particles, so that the pore space of CACFB is constantly shrinking, resulting in the UCS of CACFB in the trend of increasing [21][22][23].…”

Section: Effect Of Curing Time On Mechanical Properties Of Cacfb Samplesmentioning

confidence: 99%

Experimental investigation into the mechanical and microscopic properties of cemented aeolian sand-coal gangue-fly ash backfill

Zheng,

yang,

Yang

et al. 2024

Preprint

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This paper investigates that the influence of the independent variables of particle size of coal gangue (CG), concentration and coal gangue content on the UCS of cemented aeolian sand (AS)-coal gangue-fly ash (FA) backfill (CACFB) mixtures through the thermogravimetric, piezomercurial, microscopic experimental means by adding certain particle size of coal gangue particles in the cemented aeolian sand -fly ash backfill (CAFB) mixtures. Through the relevant experiments, the following conclusions are drawn: 1. with the increasing particle size of CG particles, the UCS of the CACFB is increasing in which the 7d UCS of R-C-1, R-C-2, R-C-3 and R-C-4 were 2.05 MPa, 2.11 MPa, 1.94 MPa and 2.09 MPa, respectively; 2. After 7 days of curing age, the UCS of CACFB is generally 1.5 MPa higher than that of CAFB.; 3. Because CG particles play a role in increasing slurry concentration, compactness and improving particle gradation in CACFB, the UCS of CACFB is much higher than the UCS of CAFB.; 4. The improvement UCS of CACFB will greatly improve the popularization and application of filling mining in northern Shaanxi mining area, and reduce the damage to environmental water resources and land resources in the mining area.

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Section: Effect Of Curing Time On Mechanical Properties Of Cacfb Samplesmentioning

confidence: 99%

Experimental investigation into the mechanical and microscopic properties of cemented aeolian sand-coal gangue-fly ash backfill

Zheng,

yang,

Yang

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

Suitability of mine waste rocks as earth tailing storage embankment materials: environmental risk assessments

Cited by 1 publication

References 54 publications

Experimental investigation into the mechanical and microscopic properties of cemented aeolian sand-coal gangue-fly ash backfill

Experimental investigation into the mechanical and microscopic properties of cemented aeolian sand-coal gangue-fly ash backfill

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