Silica Bonding Reaction on Fly Ash Based Geopolymer Repair Material System with Incorporation of Various Concrete Substrates
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...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2022-11-01
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| Series: | Archives of Metallurgy and Materials |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/125061/PDF/AMM-2022-4-10-Al%20Bakri.pdf |
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| author | Mohd Mustafa Al Bakri Abdullah Ikmal Hakem A. Aziz Warid Wazien Ahmad Zailani Shayfull Zamree Abd Rahim Heah Cheng Yong Andrei Victor Sandu Loke Siu Peng |
| author_facet | Mohd Mustafa Al Bakri Abdullah Ikmal Hakem A. Aziz Warid Wazien Ahmad Zailani Shayfull Zamree Abd Rahim Heah Cheng Yong Andrei Victor Sandu Loke Siu Peng |
| author_sort | Mohd Mustafa Al Bakri Abdullah |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-11T06:44:02Z |
| format | Article |
| id | doaj.art-af603a0e619d477a9b0931556082bd5c |
| institution | Directory Open Access Journal |
| issn | 2300-1909 |
| language | English |
| last_indexed | 2024-04-11T06:44:02Z |
| publishDate | 2022-11-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Metallurgy and Materials |
| spelling | doaj.art-af603a0e619d477a9b0931556082bd5c2022-12-22T04:39:25ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092022-11-01vol. 67No 412771281https://doi.org/10.24425/amm.2022.141052Silica Bonding Reaction on Fly Ash Based Geopolymer Repair Material System with Incorporation of Various Concrete SubstratesMohd Mustafa Al Bakri Abdullah0https://orcid.org/0000-0002-9779-8586Ikmal Hakem A. Aziz1https://orcid.org/0000-0002-2152-8918Warid Wazien Ahmad Zailani2https://orcid.org/0000-0002-0619-4948Shayfull Zamree Abd Rahim3https://orcid.org/0000-0002-1458-9157Heah Cheng Yong4https://orcid.org/0000-0001-7093-7833Andrei Victor Sandu5https://orcid.org/0000-0002-9292-749XLoke Siu Peng6Universiti Malaysia Perlis (UniMAP), Centre of Excellence Geopolymer and Green Technology (CEGeoGTech), Perlis, MalaysiaUniversiti Malaysia Perlis (UniMAP), Centre of Excellence Geopolymer and Green Technology (CEGeoGTech), Perlis, MalaysiaUniversiti Teknologi Mara (UiTM), Faculty of Civil Engineering, Shah Alam, Selangor, MalaysiaUniversiti Malaysia Perlis (UniMAP), Centre of Excellence Geopolymer and Green Technology (CEGeoGTech), Perlis, MalaysiaUniversiti Malaysia Perlis (UniMAP), Centre of Excellence Geopolymer and Green Technology (CEGeoGTech), Perlis, Malaysia“Gheorghe Asachi” Technical University of Iasi, Faculty of Materials Science and Engineering, RomaniaUniversiti Malaysia Perlis (UniMAP), Centre of Excellence Geopolymer and Green Technology (CEGeoGTech), Perlis, MalaysiaThis 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.https://journals.pan.pl/Content/125061/PDF/AMM-2022-4-10-Al%20Bakri.pdffly ash geopolymerrepair materialconcrete substrateinterfacial zone transition |
| spellingShingle | Mohd Mustafa Al Bakri Abdullah Ikmal Hakem A. Aziz Warid Wazien Ahmad Zailani Shayfull Zamree Abd Rahim Heah Cheng Yong Andrei Victor Sandu Loke Siu Peng Silica Bonding Reaction on Fly Ash Based Geopolymer Repair Material System with Incorporation of Various Concrete Substrates Archives of Metallurgy and Materials fly ash geopolymer repair material concrete substrate interfacial zone transition |
| title | Silica Bonding Reaction on Fly Ash Based Geopolymer Repair Material System with Incorporation of Various Concrete Substrates |
| title_full | Silica Bonding Reaction on Fly Ash Based Geopolymer Repair Material System with Incorporation of Various Concrete Substrates |
| title_fullStr | Silica Bonding Reaction on Fly Ash Based Geopolymer Repair Material System with Incorporation of Various Concrete Substrates |
| title_full_unstemmed | Silica Bonding Reaction on Fly Ash Based Geopolymer Repair Material System with Incorporation of Various Concrete Substrates |
| title_short | Silica Bonding Reaction on Fly Ash Based Geopolymer Repair Material System with Incorporation of Various Concrete Substrates |
| title_sort | silica bonding reaction on fly ash based geopolymer repair material system with incorporation of various concrete substrates |
| topic | fly ash geopolymer repair material concrete substrate interfacial zone transition |
| url | https://journals.pan.pl/Content/125061/PDF/AMM-2022-4-10-Al%20Bakri.pdf |
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