Wheat fiber from a residue to a reinforcing material

dc.contributor.authorAlbahttiti, Mohammed T.
dc.date.accessioned2012-04-27T18:14:31Z
dc.date.available2012-04-27T18:14:31Z
dc.date.graduationmonthMayen_US
dc.date.issued2012-04-27
dc.date.published2012en_US
dc.description.abstractThroughout history natural fiber was used as one of the main building materials all over the world. Because the use of such materials has decreased in the last century, not much research has been conducted to investigate their performance as a reinforcing material in cement and concrete. In order to investigate one of the most common natural fibers, wheat fibers, as a reinforcing material, 156 mortar specimens and 99 concrete specimens were tested. The specimens were tested in either uniaxial compression or flexure. The uniaxial compression test included 2 in (50.8 mm) mortar cubes and 4x8 in (101.6 x 203.2 mm) concrete cylinders. As for the flexure test, they were either 40x40x160 mm cementitious matrix prisms or 6x6x21 in (152.4x152.4x533.4 mm) concrete prisms. Several wheat fibers percentages were studied and compared with polypropylene fiber as a benchmarking alternative. The average increase in the uniaxial compression strength for cementitious matrix cubes reinforced with 0.5% long wheat fiber exceeded that of their counterparts reinforced with polypropylene fiber by 15%. Whereas for concrete cylinders reinforced with 0.75% long wheat fiber, their strength exceeded that of their counterparts reinforced with polypropylene fiber by 5% and that of the control by 7%. The flexural strength of cementitious matrix prisms reinforced with 0.75% long wheat fiber exceeded that of their counterparts reinforced with polypropylene fiber by 27%. Meanwhile, concrete prisms reinforced with both long wheat fiber and polypropylene fiber showed deterioration in strength of up to 17%. Finally, ABAQUS models were developed for concrete cylinders and prisms to simulate the effect of inclusion of the wheat fibers.en_US
dc.description.advisorHayder A. Rasheeden_US
dc.description.degreeMaster of Scienceen_US
dc.description.departmentDepartment of Civil Engineeringen_US
dc.description.levelMastersen_US
dc.description.sponsorshipNational Science Foundationen_US
dc.identifier.urihttp://hdl.handle.net/2097/13725
dc.language.isoen_USen_US
dc.publisherKansas State Universityen
dc.subjectNatural fibersen_US
dc.subjectConcreteen_US
dc.subjectCementitious matrixen_US
dc.subjectFinite element modelingen_US
dc.subjectMortaren_US
dc.subjectFiber Reinforcementen_US
dc.subjectWheat Fibersen_US
dc.subjectUniaxial Compressionen_US
dc.subjectFlexuralen_US
dc.subjectAbaqus Simulationsen_US
dc.subject.umiArchitectural engineering (0462)en_US
dc.subject.umiCivil Engineering (0543)en_US
dc.subject.umiEnvironmental Engineering (0775)en_US
dc.subject.umiMaterials Science (0794)en_US
dc.titleWheat fiber from a residue to a reinforcing materialen_US
dc.typeThesisen_US

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