Evaluation of mechanical properties of textile concrete subjected to different environmental exposures

 

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dc.contributor.advisor Tait, Robert B en_ZA
dc.contributor.advisor Alexander, Mark Gavin en_ZA
dc.contributor.author Mumenya, Siphila Wanjika en_ZA
dc.date.accessioned 2014-07-31T11:19:27Z
dc.date.available 2014-07-31T11:19:27Z
dc.date.issued 2007 en_ZA
dc.identifier.citation Mumenya, S. 2007. Evaluation of mechanical properties of textile concrete subjected to different environmental exposures. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/5499
dc.description Includes bibliographical references (leaves 310-327).
dc.description.abstract Within the last decade, a new class of civil engineering materials referred to as High Performance Fibre Reinforced Cementitious Composites (HPFRCC) has been developed. As a subset in this new field, additions of polypropylene (PP) fibres, in the form of woven textile fabrics, have proved most successful as reinforcement to cementitious matrices, leading to the development of a novel composite material: so called "Textile Concrete" (TC). Although the strength and modulus of PP are not very high, careful design through the appropriate placement and high fibre volume fraction of a textile format, has led to sufficient strength and stiffness, while at the same time high toughness has been achieved. In particular the development of a fibrillated core fibre to which is attached an outer layer of ultrasonically welded, or bonded "fluffy" PP fibres, has been most successful, and is a unique feature. These outer fluffy layers provide excellent physical bonding characteristics to the cement matrix, thus overcoming the intrinsic hydrophobic nature and otherwise weak matrix bonding of PP fibres. In South Africa where TC has found ready application, the composite is produced from a fine grained cementitious matrix and a PP textile commercially known as CemForce. en_ZA
dc.language.iso eng en_ZA
dc.subject.other Mechanical Engineering en_ZA
dc.title Evaluation of mechanical properties of textile concrete subjected to different environmental exposures en_ZA
dc.type Doctoral Thesis
uct.type.publication Research en_ZA
uct.type.resource Thesis en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Engineering and the Built Environment
dc.publisher.department Department of Mechanical Engineering en_ZA
dc.type.qualificationlevel Doctoral
dc.type.qualificationname PhD en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Mumenya, S. W. (2007). <i>Evaluation of mechanical properties of textile concrete subjected to different environmental exposures</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering. Retrieved from http://hdl.handle.net/11427/5499 en_ZA
dc.identifier.chicagocitation Mumenya, Siphila Wanjika. <i>"Evaluation of mechanical properties of textile concrete subjected to different environmental exposures."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 2007. http://hdl.handle.net/11427/5499 en_ZA
dc.identifier.vancouvercitation Mumenya SW. Evaluation of mechanical properties of textile concrete subjected to different environmental exposures. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 2007 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/5499 en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Mumenya, Siphila Wanjika AB - Within the last decade, a new class of civil engineering materials referred to as High Performance Fibre Reinforced Cementitious Composites (HPFRCC) has been developed. As a subset in this new field, additions of polypropylene (PP) fibres, in the form of woven textile fabrics, have proved most successful as reinforcement to cementitious matrices, leading to the development of a novel composite material: so called "Textile Concrete" (TC). Although the strength and modulus of PP are not very high, careful design through the appropriate placement and high fibre volume fraction of a textile format, has led to sufficient strength and stiffness, while at the same time high toughness has been achieved. In particular the development of a fibrillated core fibre to which is attached an outer layer of ultrasonically welded, or bonded "fluffy" PP fibres, has been most successful, and is a unique feature. These outer fluffy layers provide excellent physical bonding characteristics to the cement matrix, thus overcoming the intrinsic hydrophobic nature and otherwise weak matrix bonding of PP fibres. In South Africa where TC has found ready application, the composite is produced from a fine grained cementitious matrix and a PP textile commercially known as CemForce. DA - 2007 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2007 T1 - Evaluation of mechanical properties of textile concrete subjected to different environmental exposures TI - Evaluation of mechanical properties of textile concrete subjected to different environmental exposures UR - http://hdl.handle.net/11427/5499 ER - en_ZA


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