Study on the modification effect by flotation method of wood biomass fly ash and the applicability to cement-based composites
Source abstract
Abstract
This paper presents an empirical investigation into the impact of flotation on biomass fly ash (BFA) and its suitability for incorporation into cementitious composites. In particular, this study examines whether flotation produces varying effects on different BFA types. Seven distinct BFA samples from various power plants underwent flotation, and a comparative analysis of their physical and chemical characteristics before and after flotation was carried out. Subsequently, These treated fly ash (FA), as well as untreated ones, were integrated into cement to create cement-based composites, and their viability was examined. The reactivity of the cement paste was evaluated at different ages, and chemical composition analyses indicated that flotation had a positive effect on most types of BFA in cement-based composites. Al₂O₃, SiO₂, and CaO are oxide components in FA that influence its Activity Index, a key indicator of the pozzolanic activity and its effect on the performance of cementitious materials. A higher index suggests better material performance. Specifically, FA3 and FA4 ash, after flotation, met the JIS ash standard, confirming the potential use of BFA in cementitious composites.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Concrete and Cement Materials Research · Recycling and utilization of industrial and municipal waste in materials production · Materials Engineering and Processing
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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