Show simple item record

dc.contributor.authorJunior, Jacob
dc.contributor.authorSaha, Ashish Kumer
dc.contributor.authorSarker, Prabir
dc.contributor.authorPramanik, Alokesh
dc.date.accessioned2022-07-26T09:44:46Z
dc.date.available2022-07-26T09:44:46Z
dc.date.issued2021
dc.identifier.citationJunior, J. and Saha, A.K. and Sarker, P.K. and Pramanik, A. 2021. Workability and flexural properties of fibre-reinforced geopolymer using different mono and hybrid fibres. Materials. 14 (16): ARTN 4447.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/89045
dc.identifier.doi10.3390/ma14164447
dc.description.abstract

The effects of mono (single type) and hybrid (mixed types) fibres on the workability, compressive strength, flexural strength, and toughness parameters of fly ash geopolymer mortar were studied. The ratio of sand to geopolymer paste of the mortar was 2.75. It was found that workability of mortar decreased more with the use of PP fibres due to its higher dispersion into individual filaments in geopolymer mortar compared to the bundled ARG and PVA fibres. Compressive strength increased by 14% for using 1% steel with 0.5% PP fibres compared to that of the control mixture, which was 48 MPa. However, 25 to 30% decrease of compressive strength was observed in the mortars using the low-modulus fibres. Generally, flexural strength followed the trend of compressive strength. Deflection hardening behaviours in terms of the ASTM C1609 toughness indices, namely I5, I10 and I20 were exhibited by the mortars using 1% steel mono fibres, 0.5% ARG with 0.5% steel and 1% PVA with 0.5% steel hybrid fibres. The toughness indices and residual strength factors of the mortars using the other mono or hybrid fibres at 1 or 1.5% dosage were relatively low. Therefore, multiple cracking and deflection hardening behaviours could be achieved in fly ash geopolymer mortars of high sand to binder ratio by using steel fibres in mono or hybrid forms with ARG and PVA fibres.

dc.languageEnglish
dc.publisherMDPI
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectScience & Technology
dc.subjectPhysical Sciences
dc.subjectTechnology
dc.subjectChemistry, Physical
dc.subjectMaterials Science, Multidisciplinary
dc.subjectMetallurgy & Metallurgical Engineering
dc.subjectPhysics, Applied
dc.subjectPhysics, Condensed Matter
dc.subjectChemistry
dc.subjectMaterials Science
dc.subjectPhysics
dc.subjectdeflection hardening
dc.subjectfibre-reinforced geopolymer mortar
dc.subjectflexural strength
dc.subjectresidual strength factor
dc.subjecttoughness index
dc.subjectDEFLECTION HARDENING BEHAVIOR
dc.subjectTOUGHNESS
dc.subjectCONCRETE
dc.subjectCEMENT
dc.subjectSTEEL
dc.titleWorkability and flexural properties of fibre-reinforced geopolymer using different mono and hybrid fibres
dc.typeJournal Article
dcterms.source.volume14
dcterms.source.number16
dcterms.source.issn1996-1944
dcterms.source.titleMaterials
dc.date.updated2022-07-26T09:44:46Z
curtin.departmentSchool of Civil and Mechanical Engineering
curtin.accessStatusOpen access
curtin.facultyFaculty of Science and Engineering
curtin.contributor.orcidPramanik, Alokesh [0000-0001-8985-7358]
curtin.contributor.orcidSarker, Prabir [0000-0002-5014-7444]
curtin.contributor.researcheridPramanik, Alokesh [K-6758-2012]
curtin.identifier.article-numberARTN 4447
dcterms.source.eissn1996-1944
curtin.contributor.scopusauthoridPramanik, Alokesh [14058599200]
curtin.contributor.scopusauthoridSarker, Prabir [6603379031]


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

http://creativecommons.org/licenses/by/4.0/
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by/4.0/