期刊
CEMENT & CONCRETE COMPOSITES
卷 116, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.cemconcomp.2020.103886
关键词
Aerated geopolymer; Alkali-activated foam; Fire resistance; Rheological properties; Thermal insulation; Lightweight concrete
资金
- Swinburne University of Technology through SUPRA scholarship
- Australian Research Council [DE190100646]
- Australian Research Council [DE190100646] Funding Source: Australian Research Council
Geopolymer foam concrete (GFC) with its porous structure offers lightweight, acoustic and thermal insulation, and fire resistance properties, which are influenced by materials, foaming methods, curing conditions, and additives. Further research is needed in understanding fresh properties, durability, and processing techniques to facilitate industrial applications and the development of 3D printable GFC.
Geopolymer foam concrete (GFC) has attracted significant research interest in various fields, thanks to their porous structure which brings the inherent merits of lightweight, acoustic and thermal insulation, and fire resistance. This review is focussed on three primary functional properties of GFC, namely mechanical properties (compression and flexural strengths), serviceability (thermal conductivity, sound absorption, and fire resistance), and durability. The functional properties depend on the fundamental fresh and hardened properties (rheology, stability, density, porosity and pore morphology), and all these properties are decided by the materials, foaming methods, curing conditions, and additives. A clear insight to these relationships and the ways of optimising the performance as a construction material are therefore presented. Also, the challenges towards the large-scale production and real-world application of GFC are discussed. The identified research needs include studies on fresh properties, durability, processing techniques to attract industrial applications, and developing 3D printable GFC.
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