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Fly ash-GBBS blended geopolymer mortar for early engineering characteristic at ambient temperature

Geopolymer concept is by using industrial waste materials which is rich in silica and alumina, then activating them with alkaline solution. An appropriate binder combination that achieves high early age strength at ambient temperature using FA is still subject required. Thus, this study has been des...

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Main Authors: Nadarajah, Archanaah, Mohd Nasir, Noor Azline, Abu Bakar, Nabilah, Safiee, Nor Azizi
Format: Article
Language:English
Published: Ain Shams University 2024
Online Access:http://psasir.upm.edu.my/id/eprint/113353/1/113353.pdf
http://psasir.upm.edu.my/id/eprint/113353/
https://www.sciencedirect.com/science/article/pii/S2090447924001965
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spelling my.upm.eprints.1133532024-11-19T08:21:56Z http://psasir.upm.edu.my/id/eprint/113353/ Fly ash-GBBS blended geopolymer mortar for early engineering characteristic at ambient temperature Nadarajah, Archanaah Mohd Nasir, Noor Azline Abu Bakar, Nabilah Safiee, Nor Azizi Geopolymer concept is by using industrial waste materials which is rich in silica and alumina, then activating them with alkaline solution. An appropriate binder combination that achieves high early age strength at ambient temperature using FA is still subject required. Thus, this study has been designed in two stages which involving the paste and mortar studies. The alkaline activator as a blend of sodium hydroxide and sodium silicate solution with SS/SH ratio of 2.5, NaOH molarity of 12 M and L/B ratio of 0.43 are used for geopolymer composite. Compressive strength, water absorption and shrinkage are tested on geopolymer mortar with various level of blended combination. High volume content (60–80 %) gave a promising early age compressive strength at ambient temperature. Metakaolin gave a further strength improvement on geopolymer mortar. Overall, the finding suggested that the geopolymer with high FA content is suitable for cement-based material repair product. Ain Shams University 2024-07 Article PeerReviewed text en cc_by_nc_nd_4 http://psasir.upm.edu.my/id/eprint/113353/1/113353.pdf Nadarajah, Archanaah and Mohd Nasir, Noor Azline and Abu Bakar, Nabilah and Safiee, Nor Azizi (2024) Fly ash-GBBS blended geopolymer mortar for early engineering characteristic at ambient temperature. Ain Shams Engineering Journal, 15 (7). art. no. 102821. pp. 1-13. ISSN 2090-4479 https://www.sciencedirect.com/science/article/pii/S2090447924001965 10.1016/j.asej.2024.102821
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Geopolymer concept is by using industrial waste materials which is rich in silica and alumina, then activating them with alkaline solution. An appropriate binder combination that achieves high early age strength at ambient temperature using FA is still subject required. Thus, this study has been designed in two stages which involving the paste and mortar studies. The alkaline activator as a blend of sodium hydroxide and sodium silicate solution with SS/SH ratio of 2.5, NaOH molarity of 12 M and L/B ratio of 0.43 are used for geopolymer composite. Compressive strength, water absorption and shrinkage are tested on geopolymer mortar with various level of blended combination. High volume content (60–80 %) gave a promising early age compressive strength at ambient temperature. Metakaolin gave a further strength improvement on geopolymer mortar. Overall, the finding suggested that the geopolymer with high FA content is suitable for cement-based material repair product.
format Article
author Nadarajah, Archanaah
Mohd Nasir, Noor Azline
Abu Bakar, Nabilah
Safiee, Nor Azizi
spellingShingle Nadarajah, Archanaah
Mohd Nasir, Noor Azline
Abu Bakar, Nabilah
Safiee, Nor Azizi
Fly ash-GBBS blended geopolymer mortar for early engineering characteristic at ambient temperature
author_facet Nadarajah, Archanaah
Mohd Nasir, Noor Azline
Abu Bakar, Nabilah
Safiee, Nor Azizi
author_sort Nadarajah, Archanaah
title Fly ash-GBBS blended geopolymer mortar for early engineering characteristic at ambient temperature
title_short Fly ash-GBBS blended geopolymer mortar for early engineering characteristic at ambient temperature
title_full Fly ash-GBBS blended geopolymer mortar for early engineering characteristic at ambient temperature
title_fullStr Fly ash-GBBS blended geopolymer mortar for early engineering characteristic at ambient temperature
title_full_unstemmed Fly ash-GBBS blended geopolymer mortar for early engineering characteristic at ambient temperature
title_sort fly ash-gbbs blended geopolymer mortar for early engineering characteristic at ambient temperature
publisher Ain Shams University
publishDate 2024
url http://psasir.upm.edu.my/id/eprint/113353/1/113353.pdf
http://psasir.upm.edu.my/id/eprint/113353/
https://www.sciencedirect.com/science/article/pii/S2090447924001965
_version_ 1817844626254462976
score 13.223943

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