Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 22 for “"Glass fiber reinforced polymer (GFRP)"”.
-
Bending behavior of concrete T-beams reinforced with glass fiber-reinforced polymer (GFRP) bars
Concrete slabs are integrally cast with girders or stringers (stiffening system) resulting in floor slabs, bridge decks, footers, retaining structures and others. A portion of slab between a stiffening system acts as flange and bends in unison with the stiffening system, i.e., classic T-beam …
-
Performance of a Bridge Deck with Glass Fiber Reinforced Polymer (GFRP) Bars as the Top Mat of Reinforcement
… investigate the effectiveness and durability of GFRP bars as reinforcement for concrete decks. Today's rapid bridge deck deterioration is calling for a replacement for steel reinforcement. The advantages of GFRP such as its high tensile strength, light weight, and resistance to corrosion make it …
-
Manufacture and rehabilitation of guardrail posts using composite fabrics
… primary objective of this study was to develop a Glass Fiber Reinforced Polymer (GFRP) wood post that is more cost effective than a steel post and has smaller diameter than a conventional wood post. Another objective was to develop a portable fabric-wrapping machine for field …
-
Strengthening historic covered bridges to carry modern traffic
… components of historic covered bridges using Glass Fiber Reinforced Polymer (GFRP) composite materials. The strengthening methodologies developed during this research project were designed to conform to the Secretary of the Interior's Standards for the Treatment of Historic Properties. More …
-
Behavior of FRP reinforced and partially prestressed concrete members under the effects of temperature gradients
… and on the control of thermal cracking in reinforced concrete (RC) and partially prestressed concrete (PPC) beams. A total of eleven RC and PPC beams using FRP rebars were tested. The test program consisted of two series; RC series and PPC series. The eleven beams had the same concrete …
-
Analyses Of Pultruded Polyester/ E-Glass Composites Subjected To Environmental Degradation
… of experimental mold releases for a pultruded glass fiber reinforced polymer (gfrp). The initial assessment criteria include comparisons between pull forces and surface appearances for each mold release. Composites fabricated using experimental mold releases that exhibited acceptable properties …
-
Strength Degradation of Gfrp Bars
… was to examine the strength degradation of Glass Fiber Reinforced Polymer (GFRP) bars at high temperature and alkalinity and determine if an Arrhenius type relationship can be used as a means of projecting life. The work done includes a thorough literature review, experiments and development …
-
Condition assessment of GFRP-retrofitted concrete cylinders using electromagnetic waves
… and rebars in the near-surface region of glass fiber reinforced polymer (GFRP)-retrofitted concrete cylinders through the use of far-field radar measurements (electromagnetic or EM waves). In this development, two far-field monostatic ISAR (inverse synthetic aperture radar) measurement …
-
Service and Ultimate Limit State Flexural Behavior of One-Way Concrete Slabs Reinforced with Corrosion-Resistant Reinforcing Bars
… and deformability of a concrete bridge deck reinforced with corrosion resistant reinforcing (CRR) bars, i.e., bars that exhibit improved corrosion resistance when embedded in concrete as compared to traditional black steel. Flexural tests of one-way slabs were conducted to simulate negative …
-
Analytical Modeling of Wood-Frame Shear Walls and Diaphragms
… application, the advantages of diaphragms using glass fiber reinforced polymer (GFRP) panels in conjunction with plywood panels as sheathing (hybrid diaphragms) are presented. In the second application, the response of shear walls with improperly driven (overdriven)nails is determined along with …
-
Interface durability of externally bonded GFRP to normal and high-performance concrete
Externally bonded glass fiber-reinforced polymer (GFRP) fabrics are being increasingly used for seismic retrofit and rehabilitation of concrete structures. Glass fibers exhibit high strength to weight ratio and low cost in comparison to carbon and aramid fibers. However, previous studies have shown …
-
Rehabilitation of timber railroad bridges using glass fiber reinforced polymer composite wraps
… cap/pile" joint and an above ground pile with Glass Fiber Reinforced Polymer (GFRP) composite wraps, in combination with phenolic formaldehyde adhesives. Static and dynamic testing was performed to determine the dynamic behavior and the live load distribution of the superstructure. This …
-
Experimental Nanoengineering of Multifunctionality into an Advanced Composite Laminate
Advanced structural fiber composite materials have lightweight, multi-directional, and tailorable properties which are vital for weight-critical applications such as aerospace vehicles. Nanoengineered aerospace-grade composites have been developed to have integrated multifunctionalities while …
-
Reliability-based durability assessment of GFRP bars for reinforced concrete
… (ACI) has developed guidelines for the design of fiber reinforced polymer (FRP) reinforced concrete structures. Current guidelines require the application of environmental and flexural strength reduction factors, which have minimal experimental validation. Our goal in this research is the …
-
Slender FRP Elements as Discrete Reinforcement for Concrete
… development of slender elements that look like fibers used for reinforcing concrete but with a very different reinforcing mechanism. These elements, referred to as “Needles” are very rigid and strong; when intersected by growing cracks in concrete under heavy and increasing loads, they do not …
-
Experimental and Theoretical Investigations of a New Flat Slab System Incorporating GFRP Stay-In-Place Structural Forms and Embedded I-Beams
… for floors is introduced. It includes embedded glass fiber-reinforced polymer (GFRP) I-sections as primary and secondary beams, with columns supporting the primary beams. GFRP stay-in-place (SIP) structural forms span the spacing between, and are bonded to, the lower flanges of the I-beams. …
-
Blast Performance of Hybrid GFRP and Steel Reinforced Concrete Beams
… ratio and being chemically inert, fiber reinforced polymer (FRP) reinforcing bars are not currently used in blast-resistant reinforced concrete due to their brittle nature and lack of ductility. However, the innovative use of blended mixtures of FRP and steel rebar as tensile …
-
Fundamental Behavior of Nanoporous Networks in the Out-of-Autoclave Manufacturing of Carbon Fiber Reinforced Polymer Composites
Throughout the aerospace industry, carbon fiber reinforced polymer (CFRP) laminated composites are used extensively in spacecraft and aircraft vehicles due to their high specific strength and stiffness and other properties. Processing these advanced structural CFRP composites, especially in prepreg …
-
Nanomaterial-Enabled Out-of-Autoclave and Out-of-Oven Manufacturing of Fiber Reinforced Polymer Composites
Fiber reinforced polymer composite materials have been a staple of the aerospace industry, integral to creating lightweight flight vehicles due to their high specific material properties. These materials often come in a prepreg form, where microfibers are pre-impregnated with a polymer matrix to …
-
Seismic precursor identification method integrating acoustic emission physical models and multi-source data
… conducted, including compression tests on steel fiber-reinforced concrete (SFRC), size effect tests on ultra-high performance concrete (UHPC), flexural tests on UHPC-strengthened beams, field monitoring of cracks in steel-UHPC composite decks, and flexural tests on glass fiber-reinforced polymer …
Page 1 of 2