Effect of NaOH Molar Concentration on Microstructure and Compressive Strength of Dolomite/Fly Ash-Based Geopolymers

• Autorzy: Azimi Emy Aizat , Mohd Salleh M. A. A. , Al Bakri Abdullah Mohd Mustafa , Aziz Ikmal Hakem A. , Hussin Kamarudin , Chaiprapa Jitrin , Vizureanu Petrica , Yoriya Sorachon , Nabiałek Marcin , Wyslocki Jerzy J.

Identyfikatory

DOI

10.24425/amm.2022.139693

• Języki publikacji: EN

Abstrakty

EN

Dolomite can be used as a source of aluminosilicate to produce geopolymers; however, this approach is limited by its low reactivity. This study analyzes the viability of producing geopolymers using dolomite/fly-ash with sodium silicate and NaOH solutions (at multiple concentrations) by determining the resultant geopolymers’ compressive strengths. The dolomite/fly-ash-based geopolymers at a NaOH concentration of ~22 M resulted in an optimum compressive strength of 46.38 MPa after being cured for 28 days, and the SEM and FTIR analyses confirmed the denser surface of the geopolymer matrix. The synchrotron micro-XRF analyses confirmed that the Ca concentration exceeded that of Si and Mg, leading to the formation of calcium silicate hydrate, which strengthens the resulting geopolymers.

Słowa kluczowe

EN

dolomite/fly ash; geopolymer; NaOH concentration; synchrotron; micro-XRF

• 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. 3
• Strony: 993--998
• Opis fizyczny: Bibliogr. 21 poz., fot., rys., tab., wykr.

Twórcy

autor

Azimi Emy Aizat

• Universiti Malaysia Perlis (Unimap), Centre of Excellence Geopolymer and Green Technology (CeGeoGTech), Perlis, Malaysia

• https://orcid.org/0000-0001-5057-6081

autor

Mohd Salleh M. A. A.

• Universiti Malaysia Perlis (Unimap), Centre of Excellence Geopolymer and Green Technology (CeGeoGTech), Perlis, Malaysia

• https://orcid.org/0000-0002-9523-7558

autor

Al Bakri Abdullah Mohd Mustafa

• Universiti Malaysia Perlis (Unimap), Centre of Excellence Geopolymer and Green Technology (CeGeoGTech), 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

Hussin Kamarudin

• Universiti Malaysia Perlis (Unimap), Centre of Excellence Geopolymer and Green Technology (CeGeoGTech), Perlis, Malaysia

• https://orcid.org/0000-0001-9644-4244

autor

Chaiprapa Jitrin

• Synchrotron Light Research Institute (SLRI), 111 University Avenue, Muang District, Nakhon Ratchasima 30000, Thailand

• https://orcid.org/0000-0002-3755-4635

autor

Vizureanu Petrica

• ”Gheorghe Asachi” Technical University, Faculty of Materials Science and Engineering, Blvd. D. Mangeron 71, 700050 Lasi, Romania

• https://orcid.org/0000-0002-3593-9400

autor

Yoriya Sorachon

• National Metal and Materials Technology Center (MTEC), 114 Thailand Science Park, Phaholyothin Road, Klong 1, Klongluang, Pathumthani 12120, Thailand

• https://orcid.org/0000-0002-8890-5407

autor

Nabiałek Marcin

• Czestochowa University of Technology, Department of Physics, 42-200, Czestochowa, Poland

• https://orcid.org/0000-0001-6585-3918

autor

Wyslocki Jerzy J.

• Czestochowa University of Technology, Department of Physics, 42-200, Czestochowa, Poland

• https://orcid.org/0000-0002-6157-5065

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).