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Mixing sequence effect of cement composites with carbon fibres

Carbon fibres are widely recognised as reinforcement materials that effectively control cracks in concrete structures. Nonetheless, these fibres do not disperse uniformly inside the cement matrix, disrupting the mixture homogeneity. To address this concern, this study investigated two distinct mixin...

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Main Authors: Elizer Nevall Anthony, Ahmad Nurfaidhi Rizalman, Anand Ryan Thurairajah, S.M. Iqbal S. Zainal, Muhd Fauzy Sulaiman
Format: Article
Language:English
English
Published: International Islamic University Malaysia 2024
Subjects:
TA401-492 Materials of engineering and construction. Mechanics of materials
TA715-787 Earthwork. Foundations
Online Access:https://eprints.ums.edu.my/id/eprint/40815/1/ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/40815/2/FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/40815/
https://doi.org/10.31436/iiumej.v25i1.2983
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spelling my.ums.eprints.408152024-08-28T01:13:57Z https://eprints.ums.edu.my/id/eprint/40815/ Mixing sequence effect of cement composites with carbon fibres Elizer Nevall Anthony Ahmad Nurfaidhi Rizalman Anand Ryan Thurairajah S.M. Iqbal S. Zainal Muhd Fauzy Sulaiman TA401-492 Materials of engineering and construction. Mechanics of materials TA715-787 Earthwork. Foundations Carbon fibres are widely recognised as reinforcement materials that effectively control cracks in concrete structures. Nonetheless, these fibres do not disperse uniformly inside the cement matrix, disrupting the mixture homogeneity. To address this concern, this study investigated two distinct mixing sequences of cement composites with carbon fibres. Two mixing sequences were investigated including the addition of fibres after cement (ACCF) and the addition of fibres before cement (BC-CF). The surface topography of carbon fibres and the engineering properties of the cement paste were also examined. Consequently, carbon fibres in cement composite produced lower flowability due to the surface roughness. The AC-CF specimen demonstrated the highest hardened density at 28 days with 2679.22 kg/m3 followed by BC-CF and the control specimen with 2386.08 kg/m3 and 2278.36 kg/3 , respectively. The AC-CF specimen also had the highest compressive strength at 28 days with 69.91 MPa, followed by BC-CF and the control specimen with 65.92 MPa and 63.20 MPa, respectively. Further, the flexural strength of the AC-CF specimen exhibited the highest strength with 10.86 MPa, followed by BC-CF and the control specimen with 9.35 MPa and 9.17, respectively. The fibre dispersion in AC-CF was also superior to BC-CF. Therefore, it can be concluded that the best mixing sequence is the addition of fibre after cement (AC-CF) because it had better fibre dispersion and engineering properties compared to the addition of fibre before cement (BC-CF). International Islamic University Malaysia 2024 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/40815/1/ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/40815/2/FULL%20TEXT.pdf Elizer Nevall Anthony and Ahmad Nurfaidhi Rizalman and Anand Ryan Thurairajah and S.M. Iqbal S. Zainal and Muhd Fauzy Sulaiman (2024) Mixing sequence effect of cement composites with carbon fibres. IIUM Engineering Journal, 25 (1). pp. 1-11. https://doi.org/10.31436/iiumej.v25i1.2983
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic TA401-492 Materials of engineering and construction. Mechanics of materials
TA715-787 Earthwork. Foundations
spellingShingle TA401-492 Materials of engineering and construction. Mechanics of materials
TA715-787 Earthwork. Foundations
Elizer Nevall Anthony
Ahmad Nurfaidhi Rizalman
Anand Ryan Thurairajah
S.M. Iqbal S. Zainal
Muhd Fauzy Sulaiman
Mixing sequence effect of cement composites with carbon fibres
description Carbon fibres are widely recognised as reinforcement materials that effectively control cracks in concrete structures. Nonetheless, these fibres do not disperse uniformly inside the cement matrix, disrupting the mixture homogeneity. To address this concern, this study investigated two distinct mixing sequences of cement composites with carbon fibres. Two mixing sequences were investigated including the addition of fibres after cement (ACCF) and the addition of fibres before cement (BC-CF). The surface topography of carbon fibres and the engineering properties of the cement paste were also examined. Consequently, carbon fibres in cement composite produced lower flowability due to the surface roughness. The AC-CF specimen demonstrated the highest hardened density at 28 days with 2679.22 kg/m3 followed by BC-CF and the control specimen with 2386.08 kg/m3 and 2278.36 kg/3 , respectively. The AC-CF specimen also had the highest compressive strength at 28 days with 69.91 MPa, followed by BC-CF and the control specimen with 65.92 MPa and 63.20 MPa, respectively. Further, the flexural strength of the AC-CF specimen exhibited the highest strength with 10.86 MPa, followed by BC-CF and the control specimen with 9.35 MPa and 9.17, respectively. The fibre dispersion in AC-CF was also superior to BC-CF. Therefore, it can be concluded that the best mixing sequence is the addition of fibre after cement (AC-CF) because it had better fibre dispersion and engineering properties compared to the addition of fibre before cement (BC-CF).
format Article
author Elizer Nevall Anthony
Ahmad Nurfaidhi Rizalman
Anand Ryan Thurairajah
S.M. Iqbal S. Zainal
Muhd Fauzy Sulaiman
author_facet Elizer Nevall Anthony
Ahmad Nurfaidhi Rizalman
Anand Ryan Thurairajah
S.M. Iqbal S. Zainal
Muhd Fauzy Sulaiman
author_sort Elizer Nevall Anthony
title Mixing sequence effect of cement composites with carbon fibres
title_short Mixing sequence effect of cement composites with carbon fibres
title_full Mixing sequence effect of cement composites with carbon fibres
title_fullStr Mixing sequence effect of cement composites with carbon fibres
title_full_unstemmed Mixing sequence effect of cement composites with carbon fibres
title_sort mixing sequence effect of cement composites with carbon fibres
publisher International Islamic University Malaysia
publishDate 2024
url https://eprints.ums.edu.my/id/eprint/40815/1/ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/40815/2/FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/40815/
https://doi.org/10.31436/iiumej.v25i1.2983
_version_ 1809140095209439232
score 13.211869

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