Application of basalt fiber reinforced polymer rebar for prestressed concrete beams

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dc.contributor.advisorVolz, Jeffery S.
dc.contributor.authorSomatri, Wassime
dc.contributor.committeeMemberFloyd, Royce W.
dc.contributor.committeeMemberVemuganti, Shreya
dc.date.accessioned2022-07-29T13:44:19Z
dc.date.available2022-07-29T13:44:19Z
dc.date.issued2022-08
dc.date.manuscript2022-07
dc.description.abstractAll steel reinforced concrete infrastructure that is facing a chemical environment and corrosion will have their service life greatly reduced. With time it will lead to a premature and an inevitable failure of the steel reinforced members. After the World War II in the 1940s, the development of fiber reinforced polymer (FRP) composites has found extensive applications in different fields such as aerospace and the defense industry thanks to the expanded use of composites and recently it has found applications in the construction industry. FRP composites are characterized by various beneficial features such as high strength-to-weight ratios and excellent corrosion resistance and can be used as a substitute for steel. This research focused on investigating the implementation of a new materiel, basalt fiber reinforced polymer (BFRP) for prestressed concrete members. Using BFRP rods instead of traditional prestressing steel tendons could increase the durability of reinforced concrete structures. To assess the behavior of prestressed members made with tensioned BFRP rods, and determine if it would be suitable for prestressing applications, three prestressed BFRP concrete beams were fabricated. For each one, a companion nonprestressed BFRP concrete beam was fabricated at the same time. The nonprestressed BFRP concrete beams had the same characteristics as the prestressed BFRP concrete beams. This would enable an assessment of the effectiveness of BFRP for prestressing. After developing an anchoring system using a steel sleeve that will confine the BFRP rod from slipping through an expansive mortar, the prestressed BFRP beams could be fabricated. The transfer length as well as the prestress losses were measured through the use of DEMEC points. The transfer length results were dispersed depending on the method used to calculate them. Prestress losses were also evaluated, and a prestress loss of approximately 10% was observed after 28 days. The results of the flexural testing of the beams lead to a conclusion that prestressed BFRP concrete beams are 20% stronger than nonprestressed ones, and they could sustain a load five times greater before the appearance of cracks in the prestressed BFRP concrete beams. As a result, BFRP prestressed concrete beams will have a greater service life expectancy than regular reinforced BFRP members.en_US
dc.identifier.urihttps://hdl.handle.net/11244/336280
dc.languageen_USen_US
dc.subjectPrestresseden_US
dc.subjectConcreteen_US
dc.subjectBFRPen_US
dc.subjectbeamen_US
dc.thesis.degreeMaster of Scienceen_US
dc.titleApplication of basalt fiber reinforced polymer rebar for prestressed concrete beamsen_US
ou.groupGallogly College of Engineering::School of Civil Engineering and Environmental Scienceen_US
shareok.nativefileaccessrestricteden_US
shareok.orcid0000-0003-4051-9117en_US

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