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Characterization of Alkali-Activated Palm Oil Fuel Ash Pastes as a Function of Calcination Temperatures of Raw Precursor

This research investigates the influence of calcination temperatures of palm oil fuel ash (POFA) on the properties of the raw precursor and its hardened binder after alkali activation.The raw POFA obtained from palm oil mill is treated at 500°C, 600°C, and 700°C for approximately 6 h. The treated P...

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Main Authors: Flora, Albert Daud, Idawati, Ismail, Raudhah, Ahmadi, Nur Amalina Shairah, Abdul Samat
Format: Article
Language:English
Published: ASTM International 2020
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://ir.unimas.my/id/eprint/42838/3/Characterization.pdf
http://ir.unimas.my/id/eprint/42838/
https://www.astm.org/mpc20190212.html
https://doi.org/10.1520/MPC20190212
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spelling my.unimas.ir.428382023-09-19T08:03:42Z http://ir.unimas.my/id/eprint/42838/ Characterization of Alkali-Activated Palm Oil Fuel Ash Pastes as a Function of Calcination Temperatures of Raw Precursor Flora, Albert Daud Idawati, Ismail Raudhah, Ahmadi Nur Amalina Shairah, Abdul Samat TA Engineering (General). Civil engineering (General) This research investigates the influence of calcination temperatures of palm oil fuel ash (POFA) on the properties of the raw precursor and its hardened binder after alkali activation.The raw POFA obtained from palm oil mill is treated at 500°C, 600°C, and 700°C for approximately 6 h. The treated POFA (TPOFA) is characterized for particle size distributions and chemical compositions by X-ray fluorescence (XRF); microstructural properties by observing through scanning electron microscopy (SEM); and Fourier-transform infrared spectroscopy (FTIR) for molecular functional groups. Pastes of alkali-activated POFA (AAPOFA) are synthesized with 12 M sodium hydroxide (NaOH) as alkali activator where the liquid to binder ratio is 0.4. Calcination temperatures are observed to have some influences on the physical properties (such as color, texture, particle size and fineness) and chemical properties (such as composition and reactivity) of the raw precursor. These properties control microstructural evolution of hardened pastes, compressive strength and capillary sorptivity properties of the hardened pastes. Overall results show 500°C is the optimum calcination temperature for POFA that contributes to comparable strength and lowest permeability of AAPOFA binders. ASTM International 2020 Article PeerReviewed text en http://ir.unimas.my/id/eprint/42838/3/Characterization.pdf Flora, Albert Daud and Idawati, Ismail and Raudhah, Ahmadi and Nur Amalina Shairah, Abdul Samat (2020) Characterization of Alkali-Activated Palm Oil Fuel Ash Pastes as a Function of Calcination Temperatures of Raw Precursor. Materials Performance and Characterization, 9 (1). pp. 36-49. ISSN 2379-1365 https://www.astm.org/mpc20190212.html https://doi.org/10.1520/MPC20190212
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Flora, Albert Daud
Idawati, Ismail
Raudhah, Ahmadi
Nur Amalina Shairah, Abdul Samat
Characterization of Alkali-Activated Palm Oil Fuel Ash Pastes as a Function of Calcination Temperatures of Raw Precursor
description This research investigates the influence of calcination temperatures of palm oil fuel ash (POFA) on the properties of the raw precursor and its hardened binder after alkali activation.The raw POFA obtained from palm oil mill is treated at 500°C, 600°C, and 700°C for approximately 6 h. The treated POFA (TPOFA) is characterized for particle size distributions and chemical compositions by X-ray fluorescence (XRF); microstructural properties by observing through scanning electron microscopy (SEM); and Fourier-transform infrared spectroscopy (FTIR) for molecular functional groups. Pastes of alkali-activated POFA (AAPOFA) are synthesized with 12 M sodium hydroxide (NaOH) as alkali activator where the liquid to binder ratio is 0.4. Calcination temperatures are observed to have some influences on the physical properties (such as color, texture, particle size and fineness) and chemical properties (such as composition and reactivity) of the raw precursor. These properties control microstructural evolution of hardened pastes, compressive strength and capillary sorptivity properties of the hardened pastes. Overall results show 500°C is the optimum calcination temperature for POFA that contributes to comparable strength and lowest permeability of AAPOFA binders.
format Article
author Flora, Albert Daud
Idawati, Ismail
Raudhah, Ahmadi
Nur Amalina Shairah, Abdul Samat
author_facet Flora, Albert Daud
Idawati, Ismail
Raudhah, Ahmadi
Nur Amalina Shairah, Abdul Samat
author_sort Flora, Albert Daud
title Characterization of Alkali-Activated Palm Oil Fuel Ash Pastes as a Function of Calcination Temperatures of Raw Precursor
title_short Characterization of Alkali-Activated Palm Oil Fuel Ash Pastes as a Function of Calcination Temperatures of Raw Precursor
title_full Characterization of Alkali-Activated Palm Oil Fuel Ash Pastes as a Function of Calcination Temperatures of Raw Precursor
title_fullStr Characterization of Alkali-Activated Palm Oil Fuel Ash Pastes as a Function of Calcination Temperatures of Raw Precursor
title_full_unstemmed Characterization of Alkali-Activated Palm Oil Fuel Ash Pastes as a Function of Calcination Temperatures of Raw Precursor
title_sort characterization of alkali-activated palm oil fuel ash pastes as a function of calcination temperatures of raw precursor
publisher ASTM International
publishDate 2020
url http://ir.unimas.my/id/eprint/42838/3/Characterization.pdf
http://ir.unimas.my/id/eprint/42838/
https://www.astm.org/mpc20190212.html
https://doi.org/10.1520/MPC20190212
_version_ 1778166716435529728
score 13.211869

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