Abstract
This paper investigated the feasibility of using biomass fly ash (BFA) to prepare alkaliactivated slag and fly ash paste. The reference mixture was alkali-activated slag and coal fly ash (CFA) paste with a slag-to-coal fly ash ratio of 50/50. In other mixtures, coal fly ash was replaced at 40% and 100% with BFA, respectively. The results showed that the incorporation of BFA accelerated the setting of the paste, while its impact on the compressive strength was minor. XRD and FTIR results indicated that the BFA participated in the reaction process. BFA showed potential use as CFA replacement in synthesizing alkali-activated materials, which would pave a way for the valorisation of BFA.
| Original language | English |
|---|---|
| Title of host publication | 4th International Rilem Conference on Microstructure Related Durability of Cementitious Composites |
| Subtitle of host publication | Microdurability 2020 |
| Editors | Guang Ye, Hua Dong, Jiaping Liu, Erik Schlangen, Changwen Miao |
| Publisher | Delft University of Technology |
| Pages | 805-812 |
| Number of pages | 8 |
| ISBN (Electronic) | 978-94-6366-422-6 |
| Publication status | Published - 2021 |
| Event | 4th International Rilem Conference on Microstructure Related Durability of Cementitious Composites - Online, Delft, Netherlands Duration: 29 Apr 2021 → 27 May 2021 Conference number: 4 https://www.microdurability2020.com/99721 |
Conference
| Conference | 4th International Rilem Conference on Microstructure Related Durability of Cementitious Composites |
|---|---|
| Abbreviated title | Microdurability |
| Country/Territory | Netherlands |
| City | Delft |
| Period | 29/04/21 → 27/05/21 |
| Internet address |
Keywords
- biomass fly ash
- alkali-activated materials
- waste