Predicting the Strength of Ultrahigh-Volume Ash Concrete Containing Fly Ash and Bottom Ash as a Substitute for Fine Aggregates

Titiksh, Abhyuday; Wanjari, Swapnil P.

doi:10.1061/(asce)mt.1943-5533.0004573

Cited by 2 publications

(2 citation statements)

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“…The Central Electricity Authority of India reported that thermal power plants in India generated around 232 million tons of ash, including fly ash (FYA) and coal bottom ash (BA), in 2020-2021 (1). As per the reports, the country still has 1,738 million tons of ash despite many attempts to utilize it effectively.…”

Section: Introductionmentioning

confidence: 99%

“…As per the reports, the country still has 1,738 million tons of ash despite many attempts to utilize it effectively. Moreover, it is anticipated that 60 million tons of river sand will be used annually for construction in metropolitan India (1,2). This has made India one of the top countries where illegal sand mining is a crucial environmental issue, resulting in the degradation of wetland ecosystems and the disturbance of natural river flows (2,3).…”

Section: Introductionmentioning

confidence: 99%

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Shear strength and microstructural investigation on high-volume fly ash self-compacting concrete containing recycled concrete aggregates and coal bottom ash

Meena,

Singh,

Singh

2024

Mater. constr.

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This article presents the experimental outcomes of the shear strength and microstructural characteristics of high-volume fly ash self-compacting concrete (HVFYA-SCC) containing recycled concrete aggregates and coal bottom ash as partial replacements for natural coarse aggregates and natural fine aggregates. A total of ten numbers of mixes were produced, including HVFYA-SCC made without recycled concrete aggregates and coal bottom ash (as control) along with HVFYA-SCC mixes made with recycled concrete aggregates (from 25% to 50%) and coal bottom ash (from 10% to 30%). The compressive and shear strength of the HVFYA-SCC mixes were improved by 7% and 4%, respectively, with the incorporation of 20% coal bottom ash and 25% recycled concrete aggregates after 120 days of curing. On the other hand, scanning electron microscopic analysis revealed that incorporating coal bottom ash exhibited the pozzolanic reactions with fly ash densified the binder-aggregate matrix of the resulting HVFYA-SCC.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%