Silica Bonding Reaction on Fly Ash Based Geopolymer Repair Material System with Incorporation of Various Concrete Substrates

• Autorzy: Al Bakri Abdullah Mohd Mustafa , Aziz Ikmal Hakem A. , Zailani Warid Wazien Ahmad , Rahim Shayfull Zamree Abd , Yong Heah Cheng , Sandu Andrei Victor , Peng Loke Siu

Identyfikatory

DOI

10.24425/amm.2022.141052

• Języki publikacji: EN

Abstrakty

EN

This paper presents an experimental investigation on the mechanical properties and microstructure of geopolymer repair materials mixed using fly ash (FA) and concrete substrates. An optimal combination of FA and concrete substrate was determined using the compressive test of geopolymer mortar mixed with various concrete substrate classes. It was found that the contribution of (C35/45) concrete substrates with the FA geopolymer mortar increases the 28-day bonding strength by 25.74 MPa. The microstructure analysis of the samples using scanning electron microscopy showed the denser structure owing to the availability of high calcium and iron elements distribution. These metal cations (Ca²⁺ and Fe³⁺) are available at OPC concrete substrate as a result from the hydration process reacted with alumina-silica sources of FA and formed calcium aluminate silicate hydrate (C-A-S-H) gels and Fe-bonding linkages.

Słowa kluczowe

EN

fly ash geopolymer; repair material; concrete substrate; interfacial zone transition

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2022
• Tom: Vol. 67, iss. 4
• Strony: 1277--1281
• Opis fizyczny: Bibliogr. 11 poz., fot., rys., tab.

Twórcy

autor

Al Bakri Abdullah Mohd Mustafa

• Universiti Malaysia Perlis (UniMAP), Centre of Excellence Geopolymer and Green Technology (CEGeoGTech), Perlis, Malaysia
• Universiti Malaysia Perlis (UniMAP), Faculty of Chemical Engineering Technology, Perlis, Malaysia

• https://orcid.org/0000-0002-9779-8586

autor

Aziz Ikmal Hakem A.

• Universiti Malaysia Perlis (UniMAP), Centre of Excellence Geopolymer and Green Technology (CEGeoGTech), Perlis, Malaysia

• https://orcid.org/0000-0002-2152-8918

autor

Zailani Warid Wazien Ahmad

• Universiti Teknologi Mara (UiTM), Faculty of Civil Engineering, Shah Alam, Selangor, Malaysia

• https://orcid.org/0000-0002-0619-4948

autor

Rahim Shayfull Zamree Abd

• Universiti Malaysia Perlis (UniMAP), Centre of Excellence Geopolymer and Green Technology (CEGeoGTech), Perlis, Malaysia

• https://orcid.org/0000-0002-1458-9157

autor

Yong Heah Cheng

• Universiti Malaysia Perlis (UniMAP), Faculty of Chemical Engineering Technology, Perlis, Malaysia
• Universiti Malaysia Perlis (UniMAP), Centre of Excellence Geopolymer and Green Technology (CEGeoGTech), Perlis, Malaysia

• https://orcid.org/0000-0001-7093-7833

autor

Sandu Andrei Victor

• “Gheorghe Asachi” Technical University of Iasi, Faculty of Materials Science and Engineering, Romania

• https://orcid.org/0000-0002-9292-749X

autor

Peng Loke Siu

• Universiti Malaysia Perlis (UniMAP), Centre of Excellence Geopolymer and Green Technology (CEGeoGTech), Perlis, Malaysia

Bibliografia

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• [8] F. Pacheco-Torgal, J. Castro-Gomes, S. Jalali, Constr. Build. Mater. 22 (3), 154-161 (2008).
• [9] S.-Y.Guo, X. Zhang, J.-Z. Chen, B. Mou, H.-S. Shang, P. Wang, L. Zhang, J. Ren, Constr. Build. Mater. 264, 120715 (2020).
• [10] F. Moghaddam, V. Sirivivatnanon, K. Vessalas, Case Studies in Construction Materials 10, e00218 (2019).
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Uwagi

1. The authors thank the Centre of Excellent Geopolymer and Green Technology (CeGeoGTech), UniMAP, for its financial support. The authors would also like to thank the European Union (EU) for the “Partnership for Research in Geopolymer Concrete” (PRI-GeoC-689857) grant. Special thanks also go to the Thailand National Metal and Materials Technology Center (MTEC) for testing some of the samples.

2. Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).