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Title: From waste to resource: utilizing municipal solid waste incineration bottom ash and recycled rubber in pervious concrete pavement
Authors: Nasser Eddine, Zeinab
Barraj, Firas 
Khatib, Jamal
Elkordi, Adel
Affiliations: Department of Civil and Environmental Engineering 
Keywords: Bottom ash
Compressive strength
Issue Date: 2023-12-01
Publisher: Springer Link
Part of: Innovative Infrastructure Solutions
Volume: 8
Issue: 12
This research investigates the feasibility of using bottom ash from municipal solid waste incinerators (BA) as a replacement for traditional aggregates in pervious concrete (PC). The method employed in these mixes optimizes the use of silica fume as a partial substitute for high-strength Portland cement (Type 52.5), to promote sustainability and reduce waste in construction. Five different replacement percentages, namely, 0% (control), 25%, 50%, 75%, and 100% by volume of natural coarse aggregates, were investigated. Additionally, the impact of incorporating recycled rubber (R) aggregates in varying ratios (5%, 10%, 15%, 20%, 25%, and 30%) with BA aggregates at 100% replacement level was examined. Key properties of PC, including permeability indices (water permeability and connected porosity) and strength indices (compressive, flexural strength, and abrasion resistance), were evaluated. The results showed that increasing BA utilization in PC led to a reduction in both permeability and strength indices compared to the control mix. However, all mixes met the standard requirements for PC, except the 100% BA replacement, which failed to meet the flexural strength requirements. Further investigation demonstrated that different replacements of BA with recycled rubber had an inconsistent effect on the properties of PC. Notably, an optimum replacement value of 15% of recycled rubber resulted in increased compressive and flexural strengths, along with improved resistance to abrasion.
ISSN: 23644176
DOI: 10.1007/s41062-023-01289-1
Open URL: Link to full text
Type: Journal Article
Appears in Collections:Department of Civil and Environmental Engineering

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