期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 65, 期 -, 页码 592-603出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2014.05.031
关键词
Palm oil fuel ash; POFA; Alkali activation; Geopolymer binder
资金
- Academy of Science Malaysia (ASM) [06-05-13-SF0004]
This study delineates activation of palm oil fuel ash (POFA) by a combination of sodium silicate and sodium hydroxide at 60 degrees C to be used as a geopolymer binder. Qualitative observations as well as compressive strength were recorded to assess the viability of POFA utilization. Also, XRD, SEM/EDX, DSC, FTIR tests were conducted to investigate underlying mechanisms of geopolymerization. The post-test observations revealed that activation of POFA is applicable and compressive strength of up to 32.48 MPa at the age of 28 days was achieved. Chemical tests indicated that formation of calcium silicate hydrate was the dominant cause of geopolymerization. (C) 2014 Elsevier Ltd. All rights reserved.
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