| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
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Materials Science for Global Development -- Health, Energy, and Environment: An SMD Symposium in Honor of Wole Soboyejo
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| Presentation Title |
Recycled Wood-geopolymer Concrete Blocks as Sustainable Material |
| Author(s) |
Jong Leng Liow, Amar Khennane, Firesenay Zerabruk Gigar, Elmira Katoozi |
| On-Site Speaker (Planned) |
Jong Leng Liow |
| Abstract Scope |
Buildings have a large urban footprint, are one of the greatest consumers of resources and raw materials and are responsible for 40% of the global energy usage and contribute to as much as 33 % of the greenhouse gas emissions worldwide. Waste wood, ground granulated blast furnace slag, and fly-ash are an important source of waste that can be recycled to make wood-geopolymer concrete composite building material helping to better achieve a circular economy. The wood-geopolymer composite blocks have added properties enabling thermal, acoustic and humidity regulation within buildings that reduce energy consumption. This study has shown that recycling partially decontaminated copper-chrome- arsenic (CCA) treated waste timber may have slightly better mechanical properties than waste virgin timber. Different amounts of wood in the wood-geopolymer composites can be used for load and non-load bearing applications. The study has also shown that the use of less than 40% by weight of partially decontaminated CCA treated timber in the wood-geopolymer composite blocks is able to meet the 5 mg/litre leachate limit for a wide variety of environmental leachate tests. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Recycling and Secondary Recovery, Sustainability, Composites |