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Microstructure characteristics of concrete incorporating metakaolin and PVA fibers and influence on the compressive strength

In this paper, microstructure of concrete is investigated using metakaolin (MK) as cement replacing material and Polyvinyl Alcohol (PVA) fibers. Total ten (10) mixes of concrete are examined by varying PVA fiber aspect ratio. It was found that MK refines the pore structure, improves interfacial tran...

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Main Authors: Khan, S.U., Shafiq, N., Ayub, T.
Format: Conference or Workshop Item
Published: American Institute of Physics Inc. 2015
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85063824924&doi=10.1063%2f1.4919155&partnerID=40&md5=1b6938efe86699d8e45233262a583886
http://eprints.utp.edu.my/31459/
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spelling my.utp.eprints.314592022-03-26T03:20:02Z Microstructure characteristics of concrete incorporating metakaolin and PVA fibers and influence on the compressive strength Khan, S.U. Shafiq, N. Ayub, T. In this paper, microstructure of concrete is investigated using metakaolin (MK) as cement replacing material and Polyvinyl Alcohol (PVA) fibers. Total ten (10) mixes of concrete are examined by varying PVA fiber aspect ratio. It was found that MK refines the pore structure, improves interfacial transition zone (ITZ) due to its pozzolanic effects, reduces portlandite (Ca(OH) 2 ) content and bridges the gap between matrix and aggregates due to finer particle size. Due to improvement in ITZ, the compressive strength was improved. There was no indication of Ca(OH) 2 around the PVA fibers in the presence of MK and the interface between the fiber and matrix was observed very narrow. © 2015 AIP Publishing LLC. American Institute of Physics Inc. 2015 Conference or Workshop Item NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85063824924&doi=10.1063%2f1.4919155&partnerID=40&md5=1b6938efe86699d8e45233262a583886 Khan, S.U. and Shafiq, N. and Ayub, T. (2015) Microstructure characteristics of concrete incorporating metakaolin and PVA fibers and influence on the compressive strength. In: UNSPECIFIED. http://eprints.utp.edu.my/31459/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description In this paper, microstructure of concrete is investigated using metakaolin (MK) as cement replacing material and Polyvinyl Alcohol (PVA) fibers. Total ten (10) mixes of concrete are examined by varying PVA fiber aspect ratio. It was found that MK refines the pore structure, improves interfacial transition zone (ITZ) due to its pozzolanic effects, reduces portlandite (Ca(OH) 2 ) content and bridges the gap between matrix and aggregates due to finer particle size. Due to improvement in ITZ, the compressive strength was improved. There was no indication of Ca(OH) 2 around the PVA fibers in the presence of MK and the interface between the fiber and matrix was observed very narrow. © 2015 AIP Publishing LLC.
format Conference or Workshop Item
author Khan, S.U.
Shafiq, N.
Ayub, T.
spellingShingle Khan, S.U.
Shafiq, N.
Ayub, T.
Microstructure characteristics of concrete incorporating metakaolin and PVA fibers and influence on the compressive strength
author_facet Khan, S.U.
Shafiq, N.
Ayub, T.
author_sort Khan, S.U.
title Microstructure characteristics of concrete incorporating metakaolin and PVA fibers and influence on the compressive strength
title_short Microstructure characteristics of concrete incorporating metakaolin and PVA fibers and influence on the compressive strength
title_full Microstructure characteristics of concrete incorporating metakaolin and PVA fibers and influence on the compressive strength
title_fullStr Microstructure characteristics of concrete incorporating metakaolin and PVA fibers and influence on the compressive strength
title_full_unstemmed Microstructure characteristics of concrete incorporating metakaolin and PVA fibers and influence on the compressive strength
title_sort microstructure characteristics of concrete incorporating metakaolin and pva fibers and influence on the compressive strength
publisher American Institute of Physics Inc.
publishDate 2015
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85063824924&doi=10.1063%2f1.4919155&partnerID=40&md5=1b6938efe86699d8e45233262a583886
http://eprints.utp.edu.my/31459/
_version_ 1738657250581413888
score 13.211869

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