期刊
RESOURCES CONSERVATION AND RECYCLING
卷 136, 期 -, 页码 95-109出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.resconrec.2018.04.010
关键词
Fly ash; Alkali activation; Durability; Geopolyrner; Sustainability; Nanomaterial
资金
- USDOT Center for Environmentally Sustainable Transportation in Cold Climates (CESTiCC)
Due to their good performance and environmental friendliness, fly ash-based construction materials have great potential as alternatives to ordinary Portland cement. To realize sustainable development and beneficial use of fly ash in the construction industry, this paper presents a comprehensive review of relevant literature to evaluate the properties and performance of fly ash, with a particular focus on recent advances in characterization, compositional understanding, hydration mechanism, activation approaches, durability and sustainability of fly ash as a construction material. Several key aspects governing the performance of fly ash, including chemical composition, activator type and hydrates evolution in concrete, are highlighted. Finally, the important needs, pertinent to the optimal and broad utilization of fly ash as an integral part of sustainable construction materials, are identified for further research and development, where large-scale application studies, further classification of fly ash, advanced characterization tools and technology transfer to biomass fly ash are recommended.
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