Palm oil fuel ash as potential green micro-filler in polymer concrete
Being a plant with open cellulose structure, such potential has gone untapped due to its tendency to take up excessive resin during the mixing process. Hence, this paper presents the potential of utilizing an agricultural waste; palm oil fuel ash (POFA) as micro-filler in polymer concrete (PC). Two...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Published: |
Elsevier
2016
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1016/j.conbuildmat.2015.11.038 http://dx.doi.org/10.1016/j.conbuildmat.2015.11.038 http://eprints.uthm.edu.my/8004/1/nur_hafizah_abd_khalid_U.pdf |
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| Summary: | Being a plant with open cellulose structure, such potential has gone untapped due to its tendency to take
up excessive resin during the mixing process. Hence, this paper presents the potential of utilizing an agricultural
waste; palm oil fuel ash (POFA) as micro-filler in polymer concrete (PC). Two types of POFA fillers
– ground (GPOFA) as fine filler and unground (UPOFA) as coarse filler were investigated in different contents.
For comparison purpose, GPOFA was paired with calcium carbonate while UPOFA was with silica
sand. Filler characteristics were studied through microstructural examination, particle size distribution,
nitrogen absorption test, morphology image, and thermal analyses. Forty polymer blended and polymer
concrete mixes were prepared for flowability and compression tests, respectively. Then, miniature
crushed specimens were tested using Mercury Intrusion Porosimetry (MIP) and Field Emission
Scanning Electron Microscopy (FESEM) to investigate porosity and morphology of PC, respectively.
Results showed that POFA had their physical features changed significantly after surface modifications.
The ground POFA gives superior filling ability and high PC compressive strength. Additionally, good dispersion
characteristic of POFA could reduce porosity in PC as well. It can be concluded that POFA can be
potentially utilized as effective PC filler after being subjected to some physical modifications and mixing
it with appropriate mix design. |
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