|
Development of a geopolymer made from bagasse ash for use as a cementitious material |
|---|---|
| รหัสดีโอไอ | |
| Creator | Sahalaph Homwuttiwong |
| Title | Development of a geopolymer made from bagasse ash for use as a cementitious material |
| Contributor | Songrit Puttala, Warit Hiranphattararoj |
| Publisher | Asia-Pacific Journal of Science and Technology |
| Publication Year | 2564 |
| Journal Title | Asia-Pacific Journal of Science and Technology |
| Journal Vol. | 26 |
| Journal No. | 4 |
| Page no. | 10-Jan |
| Keyword | Geopolymer, Bagasse ash, Cement, Waste materials, Compressive strength |
| URL Website | https://www.tci-thaijo.org/index.php/APST |
| Website title | https://so01.tci-thaijo.org/index.php/APST/article/view/248702 |
| ISSN | 2539-6293 |
| Abstract | This research aimed to improve the properties of geopolymer made from bagasse ash. Bagasse ash, directly collected from disposed landfills, was burnt and ground to a higher fineness. Both original and re-burned bagasse ash were used as source materials, which were mixed with an alkaline solution to influence the geopolymer properties. Ordinary Portland cement (OPC) was applied to replace the bagasse ash between 5-15% by weight of the binder, and two methods of curing were observed. It was found that the re-burned bagasse ash tended to exhibit better compressive strength compared to original ash, and was compatible with both curing methods. The geopolymer from original bagasse ash, only with heat curing at 75 ฐC, exhibited useable compressive strength. The strength of geopolymer increased with an escalating amount of the OPC, whilst the workability was reduced. Geopolymer, which was made with OPC cured under moist conditions at room temperature, had an initial compressive strength that was lower than that with heat curing. However, this compressive strength was developed and became higher at a later age. From this study, the highest compressive strength of geopolymer produced from re-burned bagasse ash and blended with 15% of OPC was 49.9 Megapascal (MPa)at 90 days. In addition, geopolymer concrete displayedbetter abrasion resistance compared to the OPC concrete. |
