Roles of superabsorbent polymers (SAPs) and palm oil fuel ash (POFA) on the strength, cost analysis and CO2 emission of lightweight concrete: Comparison with aluminum-based aerated concrete
This work investigated the effects of superabsorbent polymers (SAPs) as pore-forming agent and palm oil fuel ash (POFA) as sand replacement (0–100 % by weight) on the strength, economic feasibility, and CO2 emissions for lightweight concrete production. The product properties were compared with the...
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Elsevier
2024-12-01
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844024163360 |
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| author | Kittipong Kunchariyakun Suthatip Sinyoung Kenneth J.D. MacKenzie Sumate Chaiprapat |
| author_facet | Kittipong Kunchariyakun Suthatip Sinyoung Kenneth J.D. MacKenzie Sumate Chaiprapat |
| author_sort | Kittipong Kunchariyakun |
| collection | DOAJ |
| description | This work investigated the effects of superabsorbent polymers (SAPs) as pore-forming agent and palm oil fuel ash (POFA) as sand replacement (0–100 % by weight) on the strength, economic feasibility, and CO2 emissions for lightweight concrete production. The product properties were compared with the traditional aerated concrete (with aluminum powder), which aimed to shed light on the use of SAPs and POFA for manufacturing a more sustainable lightweight concrete. The use of POFA to replace sand increased the cost of production by approximately 1–7% and CO2 emissions by approximately 3–12 % due primarily to the transportation of the POFA from the oil palm fuel power plant, which could be avoided if produced on site of or near the power plant. The use of SAPs in the preparation of the lightweight concrete led to a reduced compressive strength compared to the aerated concrete, especially in the autoclaved samples, calculated as 15–33 % for 28 days and 44–56 % for autoclaved curing, possibly due to a collapse of the porous structure under high temperature and pressure. These drawbacks could be eliminated if the natural SAPs in the form of fine particle size were treated with Ca2+ in agro-waste ash so as to facilitate and enhance the pozzolanic reaction during the curing phase. The fossil-based SAPs could then be replaced with the organic-based ones, which would be a more sustainable construction material for a lower-carbon society. However, further investigations into other aspects of these materials should be conducted. |
| format | Article |
| id | doaj-art-e509688444a84b87b1a2c6fb6dd61baa |
| institution | Kabale University |
| issn | 2405-8440 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj-art-e509688444a84b87b1a2c6fb6dd61baa2024-12-13T10:58:38ZengElsevierHeliyon2405-84402024-12-011023e40305Roles of superabsorbent polymers (SAPs) and palm oil fuel ash (POFA) on the strength, cost analysis and CO2 emission of lightweight concrete: Comparison with aluminum-based aerated concreteKittipong Kunchariyakun0Suthatip Sinyoung1Kenneth J.D. MacKenzie2Sumate Chaiprapat3School of Engineering and Technology, Walailak University, Nakhonsithammarat, Thailand; Center of Excellence in Sustainable Disaster Management, Walailak University, Nakhonsithammarat, ThailandDepartment of Civil and Environmental Engineering, Faculty of Engineering, Prince of Songkla University, Songkhla, Thailand; Corresponding author.MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Chemical and Physical Science, Victoria University of Wellington, Wellington, New ZealandDepartment of Civil and Environmental Engineering, Faculty of Engineering, Prince of Songkla University, Songkhla, Thailand; PSU Energy Systems Research Institute, Prince of Songkla University, Songkhla, ThailandThis work investigated the effects of superabsorbent polymers (SAPs) as pore-forming agent and palm oil fuel ash (POFA) as sand replacement (0–100 % by weight) on the strength, economic feasibility, and CO2 emissions for lightweight concrete production. The product properties were compared with the traditional aerated concrete (with aluminum powder), which aimed to shed light on the use of SAPs and POFA for manufacturing a more sustainable lightweight concrete. The use of POFA to replace sand increased the cost of production by approximately 1–7% and CO2 emissions by approximately 3–12 % due primarily to the transportation of the POFA from the oil palm fuel power plant, which could be avoided if produced on site of or near the power plant. The use of SAPs in the preparation of the lightweight concrete led to a reduced compressive strength compared to the aerated concrete, especially in the autoclaved samples, calculated as 15–33 % for 28 days and 44–56 % for autoclaved curing, possibly due to a collapse of the porous structure under high temperature and pressure. These drawbacks could be eliminated if the natural SAPs in the form of fine particle size were treated with Ca2+ in agro-waste ash so as to facilitate and enhance the pozzolanic reaction during the curing phase. The fossil-based SAPs could then be replaced with the organic-based ones, which would be a more sustainable construction material for a lower-carbon society. However, further investigations into other aspects of these materials should be conducted.http://www.sciencedirect.com/science/article/pii/S2405844024163360Palm oil fuel ashLightweight concreteSuperabsorbent polymers |
| spellingShingle | Kittipong Kunchariyakun Suthatip Sinyoung Kenneth J.D. MacKenzie Sumate Chaiprapat Roles of superabsorbent polymers (SAPs) and palm oil fuel ash (POFA) on the strength, cost analysis and CO2 emission of lightweight concrete: Comparison with aluminum-based aerated concrete Heliyon Palm oil fuel ash Lightweight concrete Superabsorbent polymers |
| title | Roles of superabsorbent polymers (SAPs) and palm oil fuel ash (POFA) on the strength, cost analysis and CO2 emission of lightweight concrete: Comparison with aluminum-based aerated concrete |
| title_full | Roles of superabsorbent polymers (SAPs) and palm oil fuel ash (POFA) on the strength, cost analysis and CO2 emission of lightweight concrete: Comparison with aluminum-based aerated concrete |
| title_fullStr | Roles of superabsorbent polymers (SAPs) and palm oil fuel ash (POFA) on the strength, cost analysis and CO2 emission of lightweight concrete: Comparison with aluminum-based aerated concrete |
| title_full_unstemmed | Roles of superabsorbent polymers (SAPs) and palm oil fuel ash (POFA) on the strength, cost analysis and CO2 emission of lightweight concrete: Comparison with aluminum-based aerated concrete |
| title_short | Roles of superabsorbent polymers (SAPs) and palm oil fuel ash (POFA) on the strength, cost analysis and CO2 emission of lightweight concrete: Comparison with aluminum-based aerated concrete |
| title_sort | roles of superabsorbent polymers saps and palm oil fuel ash pofa on the strength cost analysis and co2 emission of lightweight concrete comparison with aluminum based aerated concrete |
| topic | Palm oil fuel ash Lightweight concrete Superabsorbent polymers |
| url | http://www.sciencedirect.com/science/article/pii/S2405844024163360 |
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