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Investigation on Strength Enhancement of U-TPOFA Based Binary Blended Alkali Activated Mortar Through Addition of Fly Ash

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Proceedings of AICCE'19 (AICCE 2019)

Part of the book series: Lecture Notes in Civil Engineering ((LNCE,volume 53))

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Abstract

Alkaline activated binders (AAB), which are the results of reaction between source aluminosilicates and alkaline activator, are an environmentally friendly binder that exhibits high compressive strength (CS). This study explores the effects of different combinations of ultrafine treated palm oil fuel ash (u-TPOFA) and fly ash (FA) on the compressive strength and structural composition changes of the u-TPOFA-FA alkali-activated binary binder mortar (AABBM). The alkaline activated mortar (AAM) was synthesized using mixtures of u-TPOFA and FA in varying ratio of u-TPOFA:FA of (100:0), (90:10), (80:20), (70:30), (50:50), (25,75) and (0:100), respectively, and the alkaline activating solution consist of a combination of Na2SiO3 and NaOH. The combination and concentration of Na2SiO3 and NaOH were constant for all mixtures. Primarily, it was found that mixture with a combination of u-TPOFA:FA of 25:75 gain the highest compressive strength (CS) of 54.82 MPa at 28 days. Therefore, the replacement of SiO2 from u-TPOFA by Al2O3 provided by FA contributes towards significant CS enhancement due to the formation of more N-A-S-H gel binder. The result observed for the gel binder formation was emphasized with XRD and FTIR analyses.

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Acknowledgements

The authors gratefully acknowledge the Ministry of Higher Education, Malaysia and Universiti Sains Malaysia for providing financial support through the Fundamental Research Grant Scheme (203/PAWAM/6071365) and University Bridging Grant Scheme (304/PAWAM/6316313), respectively for the undertaking of the research work. Special thanks are due to United Palm Oil Industries for providing the palm oil fuel ash and Lafarge Malaysia Berhad, (Associated Pan Malaysia Cement Sdn. Bhd.) for providing the fly ash.

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Authors and Affiliations

  1. School of Civil Engineering, Universiti Sains Malaysia, Engineering Campus, 14300, Nibong Tebal, Penang, Malaysia

    Otman M. M. Elbasir, Megat Azmi Megat Johari & M. J. A. Mijarsh

  2. Civil Engineering Department, Faculty of Engineering, Al-Merghab University, Al-Khums, Libya

    M. J. A. Mijarsh

  3. Civil Engineering Department, High Institute of Science and Technology, Qaser Bin Gashear, Libya

    Otman M. M. Elbasir

  4. Structural Materials Niche Area, School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300, Nibong Tebal, Penang, Malaysia

    Zainal Arifin Ahmad

Authors
  1. Otman M. M. Elbasir
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  2. Megat Azmi Megat Johari
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  3. M. J. A. Mijarsh
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  4. Zainal Arifin Ahmad
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Corresponding author

Correspondence to Megat Azmi Megat Johari .

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Editors and Affiliations

  1. School of Civil Engineering, Universiti Sains Malaysia, Nibong Tebal, Malaysia

    Fadzli Mohamed Nazri

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Elbasir, O.M.M., Johari, M.A.M., Mijarsh, M.J.A., Ahmad, Z.A. (2020). Investigation on Strength Enhancement of U-TPOFA Based Binary Blended Alkali Activated Mortar Through Addition of Fly Ash. In: Mohamed Nazri, F. (eds) Proceedings of AICCE'19. AICCE 2019. Lecture Notes in Civil Engineering, vol 53. Springer, Cham. https://doi.org/10.1007/978-3-030-32816-0_85

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  • DOI: https://doi.org/10.1007/978-3-030-32816-0_85

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-32815-3

  • Online ISBN: 978-3-030-32816-0

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