Engineered cementitious composite with nanocellulose and high-volume fly ash

Withana, H; Rawat, S; Fanna, DJ; Zhang, YX

Engineered cementitious composite with nanocellulose and high-volume fly ash

Withana, H Rawat, S

Fanna, DJ Zhang, YX

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Construction and Building Materials, 2024, 451, pp. 138849
Issue Date:: 2024-11-15

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Field	Value	Language
dc.contributor.author	Withana, H
dc.contributor.author	Rawat, S https://orcid.org/0000-0002-1985-7579
dc.contributor.author	Fanna, DJ
dc.contributor.author	Zhang, YX
dc.date.accessioned	2025-04-01T04:54:56Z
dc.date.available	2025-04-01T04:54:56Z
dc.date.issued	2024-11-15
dc.identifier.citation	Construction and Building Materials, 2024, 451, pp. 138849
dc.identifier.issn	0950-0618
dc.identifier.uri	http://hdl.handle.net/10453/186413
dc.description.abstract	This research develops a sustainable Engineered Cementitious Composites (ECC) with reduced cement usage by incorporating high volume fly ash (HVFA) and silica fume, along with the novel application of nanocellulose (NC)- a plant-based nanomaterial- and hybrid fibres to achieve high strength and ductility simultaneously. 12 mixes were developed including three base ECC mixes with 1.5 % polyethylene (PE) and 0.5 % steel fibres with varying proportions of fly ash and silica fume (1.2:0–1:0.2) and nine NC reinforced ECC mixes with varying dosages of NC (0.15 %, 0.2 %, 0.25 % by weight). The effect of fly ash/silica fume ratio and NC on mechanical properties was investigated through compressive and uniaxial tensile tests. Scanning electron microscope (SEM) and differential scanning calorimetry (DSC) techniques were utilized to gain insights into the HVFA and NC matrix systems as well as the mechanisms of NC and hybrid fibres. Results showed that reducing the fly ash/ silica fume ratio increased strength but reduced tensile strain. Incorporating NC improved strength across all mixes, irrespective of fly ash/silica fume content, with the mix containing 0.2 % NC showing the highest improvement. This novel ECC is anticipated to offer a sustainable and high-performance material solution for engineering structures.
dc.language	en
dc.publisher	Elsevier
dc.relation.ispartof	Construction and Building Materials
dc.relation.isbasedon	10.1016/j.conbuildmat.2024.138849
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	0905 Civil Engineering, 1202 Building
dc.subject.classification	Building & Construction
dc.subject.classification	3302 Building
dc.subject.classification	4005 Civil engineering
dc.subject.classification	4016 Materials engineering
dc.title	Engineered cementitious composite with nanocellulose and high-volume fly ash
dc.type	Journal Article
utslib.citation.volume	451
utslib.for	0905 Civil Engineering
utslib.for	1202 Building
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	open_access	*
dc.date.updated	2025-04-01T04:54:54Z
pubs.publication-status	Published
pubs.volume	451

Abstract:

This research develops a sustainable Engineered Cementitious Composites (ECC) with reduced cement usage by incorporating high volume fly ash (HVFA) and silica fume, along with the novel application of nanocellulose (NC)- a plant-based nanomaterial- and hybrid fibres to achieve high strength and ductility simultaneously. 12 mixes were developed including three base ECC mixes with 1.5 % polyethylene (PE) and 0.5 % steel fibres with varying proportions of fly ash and silica fume (1.2:0–1:0.2) and nine NC reinforced ECC mixes with varying dosages of NC (0.15 %, 0.2 %, 0.25 % by weight). The effect of fly ash/silica fume ratio and NC on mechanical properties was investigated through compressive and uniaxial tensile tests. Scanning electron microscope (SEM) and differential scanning calorimetry (DSC) techniques were utilized to gain insights into the HVFA and NC matrix systems as well as the mechanisms of NC and hybrid fibres. Results showed that reducing the fly ash/ silica fume ratio increased strength but reduced tensile strain. Incorporating NC improved strength across all mixes, irrespective of fly ash/silica fume content, with the mix containing 0.2 % NC showing the highest improvement. This novel ECC is anticipated to offer a sustainable and high-performance material solution for engineering structures.

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http://hdl.handle.net/10453/186413