Recycled glass powder and calcium carbide residue geopolymer to stabilise silty sand soil: Mechanical performances and statistical analysis
Geopolymerization is a soil improvement technique widely used for waste management in recent years. This study explores the potential of geopolymerization for roadbed improvement using waste materials. Recycled glass powder (RGP) and calcium carbide residue (CCR) were investigated as precursors and...
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Elsevier
2025-01-01
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844025001185 |
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| author | Danial Moazami Meysam Pourabbas Bilondi Abbas Rahnama Mojtaba Zaresefat Laura Moretti |
| author_facet | Danial Moazami Meysam Pourabbas Bilondi Abbas Rahnama Mojtaba Zaresefat Laura Moretti |
| author_sort | Danial Moazami |
| collection | DOAJ |
| description | Geopolymerization is a soil improvement technique widely used for waste management in recent years. This study explores the potential of geopolymerization for roadbed improvement using waste materials. Recycled glass powder (RGP) and calcium carbide residue (CCR) were investigated as precursors and alkaline activators, respectively, to enhance the properties of silty sand soil. X-ray Fluorescence (XRF) analysis confirmed the presence of silicon dioxide in RGP and calcium oxide in CCR. The California Bearing Ratio (CBR) test evaluated the effectiveness of treatments with varying RGP and CCR contents (2–5%) compared to traditional methods (2.5%lime/2.5%cement + RGP). The influence of RGP/CCR content, soaking conditions, and curing time on the stabilised soil was assessed. The geopolymer derived from RGP and CCR significantly improved the load-bearing capacity compared to untreated soil (unsoaked CBR: 85.5 % vs. 45.0 % at 28 days). Notably, soaked CBR increased fourfold after 28 days with the optimal geopolymer content (28.7 % vs. 7.5 %). Statistical analysis confirmed that stabiliser content and sample conditions significantly impacted strength development. These findings demonstrate the effectiveness of geopolymer cement as a sustainable and strengthening alternative for soil treatment, promoting waste utilisation in infrastructure development. |
| format | Article |
| id | doaj-art-4988c78b28424169a258ea5ef561bf46 |
| institution | Kabale University |
| issn | 2405-8440 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj-art-4988c78b28424169a258ea5ef561bf462025-01-17T04:51:58ZengElsevierHeliyon2405-84402025-01-01111e41738Recycled glass powder and calcium carbide residue geopolymer to stabilise silty sand soil: Mechanical performances and statistical analysisDanial Moazami0Meysam Pourabbas Bilondi1Abbas Rahnama2Mojtaba Zaresefat3Laura Moretti4Department of Civil Engineering, Mashhad Branch, Islamic Azad University, Mashhad, IranDepartment of Civil Engineering, University of Gonabad, IranMaster of Science, Department of Civil Engineering, Mashhad Branch, Islamic Azad University, Mashhad, IranCopernicus Institute of Sustainable Development, Utrecht University, Utrecht, the Netherlands; Corresponding author.Department of Civil, Constructional and Environmental Engineering, Sapienza University of Rome, Rome, ItalyGeopolymerization is a soil improvement technique widely used for waste management in recent years. This study explores the potential of geopolymerization for roadbed improvement using waste materials. Recycled glass powder (RGP) and calcium carbide residue (CCR) were investigated as precursors and alkaline activators, respectively, to enhance the properties of silty sand soil. X-ray Fluorescence (XRF) analysis confirmed the presence of silicon dioxide in RGP and calcium oxide in CCR. The California Bearing Ratio (CBR) test evaluated the effectiveness of treatments with varying RGP and CCR contents (2–5%) compared to traditional methods (2.5%lime/2.5%cement + RGP). The influence of RGP/CCR content, soaking conditions, and curing time on the stabilised soil was assessed. The geopolymer derived from RGP and CCR significantly improved the load-bearing capacity compared to untreated soil (unsoaked CBR: 85.5 % vs. 45.0 % at 28 days). Notably, soaked CBR increased fourfold after 28 days with the optimal geopolymer content (28.7 % vs. 7.5 %). Statistical analysis confirmed that stabiliser content and sample conditions significantly impacted strength development. These findings demonstrate the effectiveness of geopolymer cement as a sustainable and strengthening alternative for soil treatment, promoting waste utilisation in infrastructure development.http://www.sciencedirect.com/science/article/pii/S2405844025001185Waste managementSoil stabilisationRoadbedGeopolymerizationX-ray fluorescence |
| spellingShingle | Danial Moazami Meysam Pourabbas Bilondi Abbas Rahnama Mojtaba Zaresefat Laura Moretti Recycled glass powder and calcium carbide residue geopolymer to stabilise silty sand soil: Mechanical performances and statistical analysis Heliyon Waste management Soil stabilisation Roadbed Geopolymerization X-ray fluorescence |
| title | Recycled glass powder and calcium carbide residue geopolymer to stabilise silty sand soil: Mechanical performances and statistical analysis |
| title_full | Recycled glass powder and calcium carbide residue geopolymer to stabilise silty sand soil: Mechanical performances and statistical analysis |
| title_fullStr | Recycled glass powder and calcium carbide residue geopolymer to stabilise silty sand soil: Mechanical performances and statistical analysis |
| title_full_unstemmed | Recycled glass powder and calcium carbide residue geopolymer to stabilise silty sand soil: Mechanical performances and statistical analysis |
| title_short | Recycled glass powder and calcium carbide residue geopolymer to stabilise silty sand soil: Mechanical performances and statistical analysis |
| title_sort | recycled glass powder and calcium carbide residue geopolymer to stabilise silty sand soil mechanical performances and statistical analysis |
| topic | Waste management Soil stabilisation Roadbed Geopolymerization X-ray fluorescence |
| url | http://www.sciencedirect.com/science/article/pii/S2405844025001185 |
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