Influence of foaming agent/water ratio and foam/geopolymer paste ratio to the properties of fly ash-based lightweight geopolymer for brick application
2017
Nowadays, the demand for lightweight building materials has been growing worldwide. This paper presents
an investigation on the use of waste materials of fly ash as a source materials for the production of lightweight
geopolymer by using foaming agents. The key properties for the foamed geopolymer namely density,
compressive strength, and water absorption were investigated. The chemical composition of materials and
morphology analysis were studied to find the microstructure properties of foamed geopolymer. The foamed
geopolymer were prepared by combination of 12 M Sodium Hydroxide (NaOH) solution and Sodium Silicate
(Na2SiO3) solution. The ratio of Na2SiO3/NaOH and ratio of fly ash/alkaline activator were kept constant at
2.5 and 2.0, by mass respectively. The effect of different ratio of foaming agent/water and foam/geopolymer
paste were investigated at 7 days of ageing and cured at 80°C for 24 hours. In general, the results showed
that the fly ash-based lightweight geopolymer has good potential as brick application.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
0
References
8
Citations
NaN
KQI