“Feasibility of waste copper slag with coal bottom ash in concrete as partial substitution of fine aggregate”

Singh, Gaurav; Chaurasia, ShriRam

doi:10.1007/s41062-022-00773-4

Cited by 3 publications

(1 citation statement)

References 23 publications

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“…Therefore, a new approach is needed. Solid waste management is one of the most major difficulties in urban areas and a major environmental problem due to the vast amounts of waste produced (Singh and Chaurasia, 2022;Martins et al, 2021). Cement prices are soaring.…”

Section: Introductionmentioning

confidence: 99%

Concrete made from waste paper sludge (WPS): a sustainable material

Kore

Rajput²,

Agarwal³

et al. 2023

TECHS

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PurposeThe growing quantity of waste is a worrying reality that has resulted in environmental sustainability challenges. Waste paper sludge (WPS) in large quantities from paper mill industry are produced every year. Their disposal in landfills, in general, pollutes the environment. Cement manufacture also contributes to global warming by emitting carbon dioxide. As a result, a novel use of industrial wastes as a supplemental cementitious ingredient in concrete formulation can help to mitigate the environmental problem. This paper aims to study the possibility of usage of WPS as partial replacements of cement for sustainable development of concrete.Design/methodology/approachThis study aims at testing the mechanical properties of concrete that has been mixed with WPS. Between 5% and 20% of the weight of cement, WPS was used to substitute it. The water binder ratios of 0.55, 0.50, 0.45 and 0.42 were all considered for an experiment to better understand the impact of WPS on concrete. In terms of workability, density, water absorption (WA), compressive strength (CS) and flexural strength (FS), concrete mixtures were created, tested and compared to traditional concrete mixes.FindingsAccording to the findings, the initial and final setting times of the concrete mixtures were both significantly delayed, and the workability and density of the concrete mixtures were both significantly lowered at all water binder ratios and replacement levels. Both compressive and FS of concrete made with WSP declined significantly at all water binder ratio. Substitution of cement by WPS enhanced the WA of all the concrete mixes. The mechanical performance of concrete mixtures that were made with a replacement level of 5% exhibited noticeable improvements. Whereas the more is the replacement levels the more the loss in the mechanical properties were noted. The ideal replacement levels for the WPS are up to 5% only.Originality/valueThis paper contributes to the literature by exploring the ecological and sustainable effects of using WPS in construction materials.

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Section: Introductionmentioning

confidence: 99%