期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 94, 期 -, 页码 408-413出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2015.07.080
关键词
Geopolymer; Recycled foam; Lightweight geopolymer concrete; Thermal conductivity
资金
- Higher Education Research Promotion and National Research University Project of Thailand
- Office of the Higher Education Commission through Advanced Functional Materials Cluster of Khon Kaen University
- Khon Kaen University
- Thailand Research Fund (TRF) under TRF Senior Research Scholar [RTA5780004]
- Siam Research and Innovation Co., Ltd.
- Dept. of Civil Engineering, Faculty of Engineering, Rajamangala University of Technology Isan Khon Kaen Campus
In this research, the properties of lightweight geopolymer concretes containing recycled packaging foam were studied. The recycled foam was crushed to sizes of 235-4.75 mm and used as lightweight aggregate. Compressive strengths and densities with liquid alkaline/ash ratios of 0.5-1.0, sodium silicate/NaOH ratios of 0.33-3.0, NaOH concentrations of 5-15 molars, curing temperatures at 25 and 60 degrees C, and foam contents of 0.85-1.05 %wt. were tested. In addition, the thermal conductivities of geopolymer blocks were determined. Results showed that the lightweight geopolymer blocks of densities of 1000-1300 kg/m(3), with satisfactory strength and low thermal conductivity can be made. This gave a twofold advantageous viz, the use of low carbon footprint fly ash geopolymer and the reuse of packaging foam. (C) 2015 Elsevier Ltd. All rights reserved.
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