Sustainable road construction materials incorporating dam sediment and eucalyptus ash waste: A circular economy framework
This study explores the innovative use of dam sediments stabilized with eucalyptus wood ash (EA) and cement as sustainable materials for road construction, advancing waste utilization in infrastructure development. The novelty lies in the optimization of EA, a biomass waste with pozzolanic propertie...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-07-01
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| Series: | Case Studies in Construction Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509524012701 |
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| author | Nunthanis Wongvatana Asarut Noorak Hatairat Poorahong Pornkasem Jongpradist Susit Chaiprakaikeow Pitthaya Jamsawang |
| author_facet | Nunthanis Wongvatana Asarut Noorak Hatairat Poorahong Pornkasem Jongpradist Susit Chaiprakaikeow Pitthaya Jamsawang |
| author_sort | Nunthanis Wongvatana |
| collection | DOAJ |
| description | This study explores the innovative use of dam sediments stabilized with eucalyptus wood ash (EA) and cement as sustainable materials for road construction, advancing waste utilization in infrastructure development. The novelty lies in the optimization of EA, a biomass waste with pozzolanic properties, as a stabilizer, providing a cost-effective and eco-friendly alternative to traditional methods. Destructive tests demonstrated that the optimal mixture containing 10 % EA and cement achieved an unconfined compressive strength of 7.7 MPa after 28 days, marking a 770 % improvement over untreated sediments. California bearing ratio tests yielded a peak value of 55 %, surpassing subbase material standards. Nondestructive tests using free-free resonance revealed strong correlations between compressive strength and wave velocities, with shear and compressional wave velocities reaching 600 and 990 m/s, respectively. Microstructural analyses showed significant formation of calcium silicate hydrate, with a 30 % increase in content, enhancing interparticle bonding and sediment densification. This study also introduces a novel framework for cost analysis, revealing a 6.6-fold reduction in construction costs due to the local availability of stabilized sediments. Furthermore, leaching tests confirmed the environmental safety of the materials, highlighting their potential as a green and economically viable solution for road construction. These findings underscore the innovative integration of waste materials into high-performance construction applications, advancing the principles of circular economy and sustainability. |
| format | Article |
| id | doaj-art-1e08f5cc505c4b1f9c1f9fb941819861 |
| institution | DOAJ |
| issn | 2214-5095 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj-art-1e08f5cc505c4b1f9c1f9fb9418198612025-08-20T02:49:41ZengElsevierCase Studies in Construction Materials2214-50952025-07-0122e0411810.1016/j.cscm.2024.e04118Sustainable road construction materials incorporating dam sediment and eucalyptus ash waste: A circular economy frameworkNunthanis Wongvatana0Asarut Noorak1Hatairat Poorahong2Pornkasem Jongpradist3Susit Chaiprakaikeow4Pitthaya Jamsawang5Department of Civil Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandDepartment of Civil Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok, ThailandDepartment of Civil Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandDepartment of Civil Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok 10140, ThailandDepartment of Civil Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, ThailandSoil Engineering Research Center, Department of Civil Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand; Corresponding author.This study explores the innovative use of dam sediments stabilized with eucalyptus wood ash (EA) and cement as sustainable materials for road construction, advancing waste utilization in infrastructure development. The novelty lies in the optimization of EA, a biomass waste with pozzolanic properties, as a stabilizer, providing a cost-effective and eco-friendly alternative to traditional methods. Destructive tests demonstrated that the optimal mixture containing 10 % EA and cement achieved an unconfined compressive strength of 7.7 MPa after 28 days, marking a 770 % improvement over untreated sediments. California bearing ratio tests yielded a peak value of 55 %, surpassing subbase material standards. Nondestructive tests using free-free resonance revealed strong correlations between compressive strength and wave velocities, with shear and compressional wave velocities reaching 600 and 990 m/s, respectively. Microstructural analyses showed significant formation of calcium silicate hydrate, with a 30 % increase in content, enhancing interparticle bonding and sediment densification. This study also introduces a novel framework for cost analysis, revealing a 6.6-fold reduction in construction costs due to the local availability of stabilized sediments. Furthermore, leaching tests confirmed the environmental safety of the materials, highlighting their potential as a green and economically viable solution for road construction. These findings underscore the innovative integration of waste materials into high-performance construction applications, advancing the principles of circular economy and sustainability.http://www.sciencedirect.com/science/article/pii/S2214509524012701Mechanical propertiesNondestructive testingStabilizationSustainabilityWaste valorization |
| spellingShingle | Nunthanis Wongvatana Asarut Noorak Hatairat Poorahong Pornkasem Jongpradist Susit Chaiprakaikeow Pitthaya Jamsawang Sustainable road construction materials incorporating dam sediment and eucalyptus ash waste: A circular economy framework Case Studies in Construction Materials Mechanical properties Nondestructive testing Stabilization Sustainability Waste valorization |
| title | Sustainable road construction materials incorporating dam sediment and eucalyptus ash waste: A circular economy framework |
| title_full | Sustainable road construction materials incorporating dam sediment and eucalyptus ash waste: A circular economy framework |
| title_fullStr | Sustainable road construction materials incorporating dam sediment and eucalyptus ash waste: A circular economy framework |
| title_full_unstemmed | Sustainable road construction materials incorporating dam sediment and eucalyptus ash waste: A circular economy framework |
| title_short | Sustainable road construction materials incorporating dam sediment and eucalyptus ash waste: A circular economy framework |
| title_sort | sustainable road construction materials incorporating dam sediment and eucalyptus ash waste a circular economy framework |
| topic | Mechanical properties Nondestructive testing Stabilization Sustainability Waste valorization |
| url | http://www.sciencedirect.com/science/article/pii/S2214509524012701 |
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