Utilizing calcined agricultural biomass for the geopolymer stabilization of demolition wastes
There is a growing need for alternative low carbon construction materials due to recent demand in road development. Traditional methods of building road pavement using virgin aggregates and cement have caused significant strain on the environments with high carbon output. As by-products of agricultu...
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Elsevier
2025-06-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025008643 |
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| author | Tung Doan Arul Arulrajah Annan Zhou Suksun Horpibulsuk |
| author_facet | Tung Doan Arul Arulrajah Annan Zhou Suksun Horpibulsuk |
| author_sort | Tung Doan |
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| description | There is a growing need for alternative low carbon construction materials due to recent demand in road development. Traditional methods of building road pavement using virgin aggregates and cement have caused significant strain on the environments with high carbon output. As by-products of agricultural industry, rice hush ash (RHA) and bagasse ash (BA) were both investigated as novel replacement binders for pavement base applications. Various geotechnical tests were adopted to evaluate the strength performance of the new geopolymer binders in stabilizing demolitions wastes (C&D) including compaction tests, repeated triaxial loading tests (RLT), and unconfined compressive strength tests (UCS). Demolition wastes such as recycled concrete (RCA), crushed brick (CB), and reclaimed asphalt (RAP) were selected to be the main aggregates of the study. Laboratory calcination at 700 °C was implemented for RHA and BA production. Outcomes from this study showed significant strength development of RHA and BA geopolymer mixtures when combined with RCA at 10 % ratio while RAP could not attain sufficient strength development at 10 % precursor ratio due to poor gradation. In contrast, all CB mixtures delivered low strength outcomes at 7 days and 20 °C curing condition. Resilient modulus (Mr) results indicated stronger strain recovery behavior for RHA geopolymer mixtures than BA in general. Overall, both RHA and BA geopolymer were found to be suitable for pavement base applications when combined with RCA aggregates at 10 % precursor ratio in standard conditions, indicating great potential in replacing cement as the main binder for road pavement construction. |
| format | Article |
| id | doaj-art-c51c09a79c83415b84a4afde6bc67db5 |
| institution | DOAJ |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
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| series | Results in Engineering |
| spelling | doaj-art-c51c09a79c83415b84a4afde6bc67db52025-08-20T03:05:17ZengElsevierResults in Engineering2590-12302025-06-012610478710.1016/j.rineng.2025.104787Utilizing calcined agricultural biomass for the geopolymer stabilization of demolition wastesTung Doan0Arul Arulrajah1Annan Zhou2Suksun Horpibulsuk3Department of Civil and Construction Engineering, Swinburne University of Technology, Hawthorn, Victoria 3122, AustraliaDepartment of Civil and Construction Engineering, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia; Corresponding author at: Department of Civil and Construction Engineering, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia.Discipline of Civil and Infrastructure Engineering, School of Engineering, Royal Melbourne Institute of Technology, Melbourne, Victoria 3001, AustraliaSchool of Civil Engineering and Center of Excellence in Innovation for Sustainable Infrastructure Development, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; Academy of Science, The Royal Society of Thailand, Bangkok, Thailand; Corresponding author at: School of Civil Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand.There is a growing need for alternative low carbon construction materials due to recent demand in road development. Traditional methods of building road pavement using virgin aggregates and cement have caused significant strain on the environments with high carbon output. As by-products of agricultural industry, rice hush ash (RHA) and bagasse ash (BA) were both investigated as novel replacement binders for pavement base applications. Various geotechnical tests were adopted to evaluate the strength performance of the new geopolymer binders in stabilizing demolitions wastes (C&D) including compaction tests, repeated triaxial loading tests (RLT), and unconfined compressive strength tests (UCS). Demolition wastes such as recycled concrete (RCA), crushed brick (CB), and reclaimed asphalt (RAP) were selected to be the main aggregates of the study. Laboratory calcination at 700 °C was implemented for RHA and BA production. Outcomes from this study showed significant strength development of RHA and BA geopolymer mixtures when combined with RCA at 10 % ratio while RAP could not attain sufficient strength development at 10 % precursor ratio due to poor gradation. In contrast, all CB mixtures delivered low strength outcomes at 7 days and 20 °C curing condition. Resilient modulus (Mr) results indicated stronger strain recovery behavior for RHA geopolymer mixtures than BA in general. Overall, both RHA and BA geopolymer were found to be suitable for pavement base applications when combined with RCA aggregates at 10 % precursor ratio in standard conditions, indicating great potential in replacing cement as the main binder for road pavement construction.http://www.sciencedirect.com/science/article/pii/S2590123025008643Bagasse ashRice husk ashDemolition wasteGeopolymerRecyclingGround improvement |
| spellingShingle | Tung Doan Arul Arulrajah Annan Zhou Suksun Horpibulsuk Utilizing calcined agricultural biomass for the geopolymer stabilization of demolition wastes Results in Engineering Bagasse ash Rice husk ash Demolition waste Geopolymer Recycling Ground improvement |
| title | Utilizing calcined agricultural biomass for the geopolymer stabilization of demolition wastes |
| title_full | Utilizing calcined agricultural biomass for the geopolymer stabilization of demolition wastes |
| title_fullStr | Utilizing calcined agricultural biomass for the geopolymer stabilization of demolition wastes |
| title_full_unstemmed | Utilizing calcined agricultural biomass for the geopolymer stabilization of demolition wastes |
| title_short | Utilizing calcined agricultural biomass for the geopolymer stabilization of demolition wastes |
| title_sort | utilizing calcined agricultural biomass for the geopolymer stabilization of demolition wastes |
| topic | Bagasse ash Rice husk ash Demolition waste Geopolymer Recycling Ground improvement |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025008643 |
| work_keys_str_mv | AT tungdoan utilizingcalcinedagriculturalbiomassforthegeopolymerstabilizationofdemolitionwastes AT arularulrajah utilizingcalcinedagriculturalbiomassforthegeopolymerstabilizationofdemolitionwastes AT annanzhou utilizingcalcinedagriculturalbiomassforthegeopolymerstabilizationofdemolitionwastes AT suksunhorpibulsuk utilizingcalcinedagriculturalbiomassforthegeopolymerstabilizationofdemolitionwastes |