Effects of addition of Al(OH)3 on the strength of alkaline activated ground blast furnace slag-ultrafine palm oil fuel ash (AAGU) based binder

Moruf Olalekan Yusuf; Megat Azmi Megat Johari; Zainal Arifin Ahmad; Mohammad Maslehuddin

doi:10.1016/j.conbuildmat.2013.09.054

Effects of addition of Al(OH)₃ on the strength of alkaline activated ground blast furnace slag-ultrafine palm oil fuel ash (AAGU) based binder

Moruf Olalekan Yusuf, Megat Azmi Megat Johari^*, Zainal Arifin Ahmad, Mohammad Maslehuddin

^*Corresponding author for this work

Applied Research Center for Metrology, Standards and Testing

Research output: Contribution to journal › Article › peer-review

44 Scopus citations

Abstract

Effects of Al(OH)₃ content on the compressive-strength of alkaline activated ground blast furnace slag (GBFS)-ultrafine palm oil fuel ash (UPOFA) based mortar (AAGU) were investigated. The mortar was activated with combined activators (Na₂SiO_3aq of silica modulus (Ms = SiO₂/Na₂O) of 3.3 and 10 M NaOH_aq). The Scanning Electron Microscope couple with energy dispersive X-ray (SEM + EDX) revealed the possibility of formation of distinctive products of calcium-silicate-hydrate (C-S-H) and Ca/Na-alumino-silicate-hydrate (C/N-A-S-H) while Fourier transform infra-red spectroscopy (FTIR) revealed the existence of higher degree of Si-Al substitution, amorphousity and carbonation as a result of inclusion of Al(OH)₃ in the mixture. The 3-day compressive-strength of AAGU_Al mortar increased with Al(OH)₃ up to optimum value of 4 wt.% of PMs (GBFS + UPOFA) but started decreasing when the Al(OH)₃ is outside the optimum. The strength of 42-49.5 MPa could be achieved at the Al(OH)₃ dosage of 3-4 wt.% while the equivalent SiO₂/Al₂O₃ molar-ratio ranged from 6.72 to 8.94.

Original language	English
Pages (from-to)	361-367
Number of pages	7
Journal	Construction and Building Materials
Volume	50
DOIs	https://doi.org/10.1016/j.conbuildmat.2013.09.054
State	Published - 2014

Bibliographical note

Funding Information:
The authors gratefully acknowledge the Universiti Sains Malaysia for providing the financial support through the Research University Scheme (1001/PAWAM/814103) for undertaking the research work. The supports from Center for Engineering Research (CER) Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia are specially acknowledged. Thanks are also due to United Palm Oil Industries and Southern Steel Company for providing the palm oil fuel ash and blast furnace slag, respectively.

Keywords

Alkaline-activated-binder
Alumina-hydroxide
Compressive-strength
Ground-blast-furnace-slag
Palm-oil-fuel-ash

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
General Materials Science

Access to Document

10.1016/j.conbuildmat.2013.09.054

Cite this

@article{e15936128ce84d04921f7f8789e3d713,

title = "Effects of addition of Al(OH)3 on the strength of alkaline activated ground blast furnace slag-ultrafine palm oil fuel ash (AAGU) based binder",

abstract = "Effects of Al(OH)3 content on the compressive-strength of alkaline activated ground blast furnace slag (GBFS)-ultrafine palm oil fuel ash (UPOFA) based mortar (AAGU) were investigated. The mortar was activated with combined activators (Na2SiO3aq of silica modulus (Ms = SiO2/Na2O) of 3.3 and 10 M NaOHaq). The Scanning Electron Microscope couple with energy dispersive X-ray (SEM + EDX) revealed the possibility of formation of distinctive products of calcium-silicate-hydrate (C-S-H) and Ca/Na-alumino-silicate-hydrate (C/N-A-S-H) while Fourier transform infra-red spectroscopy (FTIR) revealed the existence of higher degree of Si-Al substitution, amorphousity and carbonation as a result of inclusion of Al(OH)3 in the mixture. The 3-day compressive-strength of AAGUAl mortar increased with Al(OH)3 up to optimum value of 4 wt.\% of PMs (GBFS + UPOFA) but started decreasing when the Al(OH)3 is outside the optimum. The strength of 42-49.5 MPa could be achieved at the Al(OH)3 dosage of 3-4 wt.\% while the equivalent SiO2/Al2O3 molar-ratio ranged from 6.72 to 8.94.",

keywords = "Alkaline-activated-binder, Alumina-hydroxide, Compressive-strength, Ground-blast-furnace-slag, Palm-oil-fuel-ash",

author = "Yusuf, \{Moruf Olalekan\} and Johari, \{Megat Azmi Megat\} and Ahmad, \{Zainal Arifin\} and Mohammad Maslehuddin",

note = "Funding Information: The authors gratefully acknowledge the Universiti Sains Malaysia for providing the financial support through the Research University Scheme (1001/PAWAM/814103) for undertaking the research work. The supports from Center for Engineering Research (CER) Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia are specially acknowledged. Thanks are also due to United Palm Oil Industries and Southern Steel Company for providing the palm oil fuel ash and blast furnace slag, respectively. ",

year = "2014",

doi = "10.1016/j.conbuildmat.2013.09.054",

language = "English",

volume = "50",

pages = "361--367",

journal = "Construction and Building Materials",

issn = "0950-0618",

publisher = "Elsevier Ltd.",

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T1 - Effects of addition of Al(OH)3 on the strength of alkaline activated ground blast furnace slag-ultrafine palm oil fuel ash (AAGU) based binder

AU - Yusuf, Moruf Olalekan

AU - Johari, Megat Azmi Megat

AU - Ahmad, Zainal Arifin

AU - Maslehuddin, Mohammad

N1 - Funding Information: The authors gratefully acknowledge the Universiti Sains Malaysia for providing the financial support through the Research University Scheme (1001/PAWAM/814103) for undertaking the research work. The supports from Center for Engineering Research (CER) Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia are specially acknowledged. Thanks are also due to United Palm Oil Industries and Southern Steel Company for providing the palm oil fuel ash and blast furnace slag, respectively.

PY - 2014

Y1 - 2014

N2 - Effects of Al(OH)3 content on the compressive-strength of alkaline activated ground blast furnace slag (GBFS)-ultrafine palm oil fuel ash (UPOFA) based mortar (AAGU) were investigated. The mortar was activated with combined activators (Na2SiO3aq of silica modulus (Ms = SiO2/Na2O) of 3.3 and 10 M NaOHaq). The Scanning Electron Microscope couple with energy dispersive X-ray (SEM + EDX) revealed the possibility of formation of distinctive products of calcium-silicate-hydrate (C-S-H) and Ca/Na-alumino-silicate-hydrate (C/N-A-S-H) while Fourier transform infra-red spectroscopy (FTIR) revealed the existence of higher degree of Si-Al substitution, amorphousity and carbonation as a result of inclusion of Al(OH)3 in the mixture. The 3-day compressive-strength of AAGUAl mortar increased with Al(OH)3 up to optimum value of 4 wt.% of PMs (GBFS + UPOFA) but started decreasing when the Al(OH)3 is outside the optimum. The strength of 42-49.5 MPa could be achieved at the Al(OH)3 dosage of 3-4 wt.% while the equivalent SiO2/Al2O3 molar-ratio ranged from 6.72 to 8.94.

AB - Effects of Al(OH)3 content on the compressive-strength of alkaline activated ground blast furnace slag (GBFS)-ultrafine palm oil fuel ash (UPOFA) based mortar (AAGU) were investigated. The mortar was activated with combined activators (Na2SiO3aq of silica modulus (Ms = SiO2/Na2O) of 3.3 and 10 M NaOHaq). The Scanning Electron Microscope couple with energy dispersive X-ray (SEM + EDX) revealed the possibility of formation of distinctive products of calcium-silicate-hydrate (C-S-H) and Ca/Na-alumino-silicate-hydrate (C/N-A-S-H) while Fourier transform infra-red spectroscopy (FTIR) revealed the existence of higher degree of Si-Al substitution, amorphousity and carbonation as a result of inclusion of Al(OH)3 in the mixture. The 3-day compressive-strength of AAGUAl mortar increased with Al(OH)3 up to optimum value of 4 wt.% of PMs (GBFS + UPOFA) but started decreasing when the Al(OH)3 is outside the optimum. The strength of 42-49.5 MPa could be achieved at the Al(OH)3 dosage of 3-4 wt.% while the equivalent SiO2/Al2O3 molar-ratio ranged from 6.72 to 8.94.

KW - Alkaline-activated-binder

KW - Alumina-hydroxide

KW - Compressive-strength

KW - Ground-blast-furnace-slag

KW - Palm-oil-fuel-ash

UR - https://www.scopus.com/pages/publications/84886495003

U2 - 10.1016/j.conbuildmat.2013.09.054

DO - 10.1016/j.conbuildmat.2013.09.054

M3 - Article

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SN - 0950-0618

VL - 50

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EP - 367

JO - Construction and Building Materials

JF - Construction and Building Materials

ER -