This study reports the preparation and characterization of alkali-activated slag based geopolymer foamed material (GFM). The roles of rice husk ash (RHA) on thermal stability and thermal insulation of GFM were systematically investigated. Thanks to the low self-weight and good reactivity of RHA, the compressive strength and specific compressive strength of GFM are enhanced, promoting the lightweight and high-strength developments of GFM. More importantly, the replacement of GGBS by RHA efficiently mitigates the strength degradation, reduces the weight loss and increases the volumetric stability of GFM during thermal exposure. The thermal conductivity of GFMs registered from 0.1102-0.2891 W/mK reflects good thermal insulation characteristic, which is better than the reported thermal insulation properties of other alkali-activated foamed materials system at the same strength/density level. The mechanism of RHA acting on GFMs is closely related to the property characteristics of RHA itself, basic properties enhancement and pore structure development of GFMs. With...
A novel synthesis of lightweight and high-strength green geopolymer foamed material by rice husk ash and ground-granulated blast-furnace slag.
Haoxin Li, Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, China. E-mail email@example.com
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Guangwei Liang, Tiejun Liu, Haoxin Li, Biqin Dong, Tao Shi; A novel synthesis of lightweight and high-strength green geopolymer foamed material by rice husk ash and ground-granulated blast-furnace slag.. IFIS Food and Health Sciences Database 2022; doi:
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