Publication:
Thin fly ash/ ladle furnace slag geopolymer: Effect of elevated temperature exposure on flexural properties and morphological characteristics

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cris.author.scopus-author-id 57210912441
cris.author.scopus-author-id 57204242778
cris.author.scopus-author-id 54402789500
cris.author.scopus-author-id 53164519100
cris.author.scopus-author-id 37020415600
cris.author.scopus-author-id 57206255413
cris.author.scopus-author-id 57210916620
cris.author.scopus-author-id 57219030010
cris.author.scopus-author-id 57219031044
cris.author.scopus-author-id 57226897182
cris.virtual.department Universiti Malaysia Perlis
cris.virtual.department Universiti Malaysia Perlis
cris.virtual.department Universiti Malaysia Perlis
cris.virtualsource.department 9414f569-850d-45d8-8fa2-e5f2c4194711
cris.virtualsource.department ce68e3ec-253c-437a-96ef-1266da6595d7
cris.virtualsource.department 1fb76e68-0c75-4529-ac9f-cf51941493f8
dc.contributor.author Yong-Sing Ng
dc.contributor.author Liew Yun Ming
dc.contributor.author Heah Cheng Yong
dc.contributor.author Mohd. Mustafa Al Bakri Abdullah
dc.contributor.author Pakawanit P.
dc.contributor.author Chan L.W.L.
dc.contributor.author Ng Hui-Teng
dc.contributor.author Ong Shee-Ween
dc.contributor.author Ooi Wan-En
dc.contributor.author Hang Yong-Jie
dc.date.accessioned 2024-09-27T01:11:44Z
dc.date.available 2024-09-27T01:11:44Z
dc.date.issued 2022-06-15
dc.description.abstract The flexural properties and thermal performance of 10 mm-thin geopolymers made from fly ash and ladle furnace slag were evaluated before and after exposure to elevated temperatures (300 °C, 600 °C, 900 °C, 1100 °C and 1150 °C). Class F fly ash was mixed with liquid sodium silicate (Na2SiO3) and 12 M sodium hydroxide (NaOH) solution using aluminosilicate/activator ratio of 1:2.5 and Na2SiO3/NaOH ratio of 1:4 to synthesise thin fly ash (FA) geopolymers. 40 wt% of ladle furnace slag was partially replacing fly ash to produce fly ash/slag-based (FAS) geopolymers. Thermal treatment enhanced the flexural strength of thin geopolymers. In comparison to the unexposed specimen, the flexural strength of FA geopolymers at 1150 °C and FAS geopolymers 1100 °C was increased by 161.3% to 16.2 MPa and 208.9% to 24.1 MPa, respectively. A more uniform heating was achieved in thin geopolymers which favoured the phase transformation at high temperatures and contributed to the substantial increase in flexural strength. The joint effect of elevated temperature exposure and the incorporation of ladle furnace slag further improved the flexural strength of thin geopolymers. The calcium-rich slag refined the pore structure and increased the crystallinity of thin geopolymers which aided in high strength development.
dc.identifier.doi 10.1016/j.ceramint.2022.02.201
dc.identifier.scopus 2-s2.0-85125459961
dc.identifier.uri https://hdl.handle.net/20.500.14170/3942
dc.relation.grantno undefined
dc.relation.ispartof Ceramics International
dc.relation.ispartofseries Ceramics International
dc.relation.issn 02728842
dc.subject Elevated temperature | Flexural properties | Fly ash | Ladle furnace slag | Thin geopolymer
dc.title Thin fly ash/ ladle furnace slag geopolymer: Effect of elevated temperature exposure on flexural properties and morphological characteristics
dc.type Journal
dspace.entity.type Publication
oaire.citation.endPage 16575
oaire.citation.issue 12
oaire.citation.startPage 16562
oaire.citation.volume 48
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit 111 University Avenue
oairecerif.affiliation.orgunit Ceramic Research Company Sdn Bhd (Guocera-Hong Leong Group)
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.author.affiliation Universiti Malaysia Perlis
oairecerif.author.affiliation Universiti Malaysia Perlis
oairecerif.author.affiliation Universiti Malaysia Perlis
oairecerif.author.affiliation Universiti Malaysia Perlis
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oairecerif.author.affiliation Universiti Malaysia Perlis
oairecerif.author.affiliation Universiti Malaysia Perlis
oairecerif.author.affiliation Universiti Malaysia Perlis
oairecerif.author.affiliation Universiti Malaysia Perlis
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person.identifier.scopus-author-id 57210912441
person.identifier.scopus-author-id 57204242778
person.identifier.scopus-author-id 54402789500
person.identifier.scopus-author-id 53164519100
person.identifier.scopus-author-id 37020415600
person.identifier.scopus-author-id 57206255413
person.identifier.scopus-author-id 57210916620
person.identifier.scopus-author-id 57219030010
person.identifier.scopus-author-id 57219031044
person.identifier.scopus-author-id 57226897182
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