Journal
MATERIALS
Volume 14, Issue 15, Pages -Publisher
MDPI
DOI: 10.3390/ma14154264
Keywords
alkali-activated material; fly ash; short-term strengths; pozzolanic; properties; utilizations
Categories
Funding
- Russian Science Foundation [21-19-00324]
- Russian Science Foundation [21-19-00324] Funding Source: Russian Science Foundation
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The development of sustainable concrete, such as fly ash-based concrete, helps in reducing environmental pollution and resource consumption, while offering excellent mechanical properties and advantages in construction industry.
Development of sustainable concrete as an alternative to conventional concrete helps in reducing carbon dioxide footprint associated with the use of cement and disposal of waste materials in landfill. One way to achieve that is the use of fly ash (FA) as an alternative to ordinary Portland cement (OPC) because FA is a pozzolanic material and has a high amount of alumina and silica content. Because of its excellent mechanical properties, several studies have been conducted to investigate the use of alkali-activated FA-based concrete as an alternative to conventional concrete. FA, as an industrial by-product, occupies land, thereby causing environmental pollution and health problems. FA-based concrete has numerous advantages, such as it has early strength gaining, it uses low natural resources, and it can be configurated into different structural elements. This study initially presents a review of the classifications, sources, chemical composition, curing regimes and clean production of FA. Then, physical, fresh, and mechanical properties of FA-based concretes are studied. This review helps in better understanding of the behavior of FA-based concrete as a sustainable and eco-friendly material used in construction and building industries.
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