The Development Of Fibres Reinforced Flowable High Strength Mortar And Concrete As Repair Materials

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dc.contributor.authorDawood, Eethar Thanon
dc.date.accessioned2018-10-09T08:01:53Z
dc.date.available2018-10-09T08:01:53Z
dc.date.issued2011-04
dc.description.abstractThe study of flowable high strength concrete and mortar as repair materials was carried out to understand the behaviour of these materials on construction sites. The experimental tests were carried out on High Strength Flowable Mortar (HSFM) and High Strength Flowing Concrete (HSFC) mixes reinforced with different percentages of steel fibres and hybrid fibres of steel, Palm and Barchip fibres. These materials are proposed as repair materials which are more beneficial and effective than epoxy or polymer materials. The tests results revealed that the increase in steel fibre inclusions in the HSFM and HSFC mixes resulted in reduction of flow. Thus, a higher dosage of SP is needed to achieve the required flowability. The results of HSFM with steel fibres show that the highest increase in compressive strength, in order of 20%, is obtained with steel fibres fraction of 1.25%. Whereas, the results of HSFC with steel fibres show that the highest increase in compressive strength, of about 10%, is obtained with steel fibres fraction of 1.0%. The results obtained for each HSFM and HSFC specimen reinforced with steel fibres indicated that the inclusion of 1.5, 1.75 & 2.0 % by volume exhibited the most appropriate percentages to be used for repair applications. Furthermore, the results for the hybrid fibres for each of the HSFM & HSFC showed that the mixes of 1.75% steel fibres + 0.25% palm fibres, 1.5% steel fibres + 0.5% palm fibres and 1.5% steel fibres + 0.25% palm fibres + 0.25% Barchip Fibres exhibit the best performance amongst the mixes tested. The hybridization of Steel Fibres with Palm and Barchip Fibres enhances the tensile strength, flexural toughness, static modulus of elasticity, and impact resistance, among other characteristics for each of the HSFM and HSFC mixes.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/6720
dc.language.isoenen_US
dc.publisherUniversiti Sains Malaysiaen_US
dc.subjectFlowable high strength concrete and mortaen_US
dc.subjectas repair materialsen_US
dc.titleThe Development Of Fibres Reinforced Flowable High Strength Mortar And Concrete As Repair Materialsen_US
dc.typeThesisen_US
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