Glass fibre reinforced polymer reinforcing bar item no. Fibers suitable for reinforcing concrete have been produced from steel, glass, and organic polymers synthetic fibers. Use of carbon fiber reinforced polymer composites to increase. Experiments are carried out to study the effe on fl coir composites are developed and their forwarded to use the agricultural waste. Glass fiber reinforced plastics are composite materials manufactured by laminating unsaturated polyester resin with glass fiber and filler. Gfrp or glass fiber reinforced polymer rebar is a variant of frp. Review of industrial manufacturing capacity for fibrereinforced. Epoxy resin was used as polymer matrix material and glass fiber was used as reinforcing material. Fiberreinforced concrete frc is concrete made primarily of hydraulic cements, aggregates, and discrete reinforcing fibers.
The objective of the current study is to investigate and study the epoxypolyester composites which are used in aerospace. The mechanical tests, conducted at room temperature, included tests for density, tensile. Due to their noncorrossive nature, they are particularly suited for harsh environments where steel reinforcement is prone to corrosion. Shear strengthening of large reinforced concrete elements using carbon fiber reinforced polymer. In this way, glass fibre reinforced concrete gfrc was started to produce for the satisfaction of different demands. Aslan 100 fiberglass rebar is made using a vinyl ester resin matrix with ecr glass fibers. The primary data collection site i82, yakima river br. This paper summarises the findings of an investigation into the use of glass fibre reinforced polymer gfrp reinforcement in bridge decks for environments, such as coastal new zealand, where noncorrosive benefits of gfrp may offer an alternative to typical mild steel reinforcement. To enhance durability of materials, new generation of glass fibres directed to improvement process. Composite beams consisting of pultruded glass fibrereinforced polymer gfrp ibeams and ultrahighstrength fibrereinforced concrete ufc slabs have been developed for use in shortspan bridges. What is glass fiber reinforced polymer gfrp we are. The use of carbon fiber reinforced polymer cfrp composites to increase the flexural capacity of reinforced concrete bridges was investigated in this research project. Continues glass fibers were first manufactured in the 1930s for hightemperature electrical application.
An investigation has been performed into its mechanical properties such as bending strength, tensile strength and longterm performance under constant load and fatigue load. However, steel also has its disadvantages, such as its low resistance to corrosion and the resulting limited lifetime, which has lead engineers to look for alternative solutions. Concrete reinforced with fibre reinforced polymer frp materials has been under investigation since the 1960s. Glass fiber reinforced polymer architectural fiberglass. Sensitive concrete structures like seawalls, dams, and power plants have to be reinforced with corrosionresistant rebar. Compared to sheet materials edit bulk glass filled materials are considered distinct from fibreglass or fibre reinforced plastic materials. Archanaa dongre 3 1 assistant pr ofessor, vid ya jyothi in stitute of technology, hyderabad, 500081.
Fiber reinforced concrete frc is concrete made primarily of hydraulic cements, aggregates, and discrete reinforcing fibers. Pdf retrofitting of concrete short column using glass fibre. The fibres are usually glass in fibreglass, carbon in carbon fiber reinforced polymer, aramid, or basalt. Significant research has been performed on glass fiberreinforced polymer gfrp. Naturally occurring asbestos fibers and vegetable fibers, such as sisal and jute, are also used for reinforcement.
Glass fibre the composites used today in the industry are made of glass fibers. Fibre reinforced polymer bolts fibre reinforced polymer threaded rods and epoxy adhesive were used to connect the ufc slab to the gfrp ibeam. Flexural behaviour of glass fibrereinforced polymer and. Fiberglass rebar product types composites owens corning. The laminates are prepared according to the astm standard, without glass fibre, abs with single layer of glass fibre and abs with double layer of glass fibre using injection moulding process. Ozdemir ng, zhang t, hadavinia h, aspin i, scarpa f, glass fibre reinforced polymer composites toughened with acrylonitrile butadiene nanorubber, composites part b 2015, doi. This paper presents the mechanical performance properties of glass fibre reinforced plastic gfrp, based on resin recovered from recycled plastic waste. Fibrereinforced plastic frp also called fiber reinforced polymer, or fiber reinforced plastic is a composite material made of a polymer matrix reinforced with fibres.
Glass fibre reinforced polymer bars in concrete compression members joel brown 1, 1 structural engineer, airey taylor consulting, unit 1218 harvest tce, west perth, australia email. Mechanical properties of glass fibre reinforced polymer. The two commonly used systems include wet layup system and prefab system. Mechanical properties of glass fiber reinforced polymers members. The glass fibre reinforced plastic gfrp had a fibre content varied by weight from 35 to 50% while the thicknesses of the laminate were 10 mm, 12 mm and 16 mm. The glass content of grp reinforced with chopped strand mat generally varies between 25 to 35 for grp reinforced with cloth, the glass con tent ranges from 50 to 63. Fiberreinforced polymer frp materials are composite materials that typically consist of strong fibers embedded in a resin matrix. Aslan 100 fiberglass rebar brochure pdf 956 kb aslan. Feb 28, 2017 glass fibre reinforced plastic gfrp 1. Fiber reinforced polymer frp composites are made of continuous glass, carbon, or aramid fibers encapsulated in a resin matrix and can be bonded to a. Frp composites offer several features such as ease of shaping, strength, fatigue resistance, high stiffness, and low density over steel and other nonferrous metals. For this, hand layup method was used to fabricate glass fiber reinforced epoxy resin composites and tio 2 material was used.
Glassfilled polymer or glassfilled plastic, is a mouldable composite material. Glass fibre reinforced polymer gfrp bars have been developed as an alternative to steel reinforcement for various structural concrete applications. First developed in the mid 1930s, glass fiber reinforced plastic gfrp has become a staple in the building industry. Glass fibre reinforced plastic gfrp linkedin slideshare. What is glass fiber reinforced polymer gfrp we are the. The overall goal was to develop design procedures for strengthening existing bridges using cfrp to avoid replacement of bridges that have been functioning.
Mechanical behaviour of glass and carbon fibre reinforced. Polymermodified glass fibre reinforced gypsum springerlink. These materials have relatively high strength and stiffness. Use of carbon fiber reinforced polymer composites to increase 5. This is a pdf file of an unedited manuscript that has been accepted for publication. Fiber reinforced polymer frp has become an excellent alternative because of its properties. In the former system, dry unidirectional fibre sheet, dry multidirectional fabric, resin preimpregnated uncured. The global fiber reinforced polymer frp composites market size was worth usd 114. Bhagyashri d sangai, retrofitting of concrete short column using glass fibre reinforced polymer, march 15 volume 3 issue 3, international journal on recent and innovation trends in computing and. Frp is a generic term for fiber reinforced polymer and can include carbon, glass, kevlar, basalt and other materials as reinforcing elements. In the 1940s, potential of glass as a construction material was realized and improvement continued with the addition of zirconium dioxide in 1960s for harsh alkali conditions.
S80710 specification for fibre reinforced polymers. Pdf mechanical properties of glass fiber reinforced polymers. Glass fibers reinforced polymer composites have been prepared by various manufacturing technology and are widely used for various applications. High velocity impact response evaluation of a glass fibre. Design of fibre reinforced concrete beams and slabs master of science thesis in the masters programme structural engineering and building performance design ammar abid, kenneth b. Guidelines for inspection and acceptance of glass fibre reinforced polymer gfrp reinforcing bars. These materials do not rust and are comparatively corrosionresistant, hence the increasing use of. Glass fibre reinforced polymer gfrp pultruded profiles have great potential in the construction industry, presenting several advantages comparing with. Use of carbon fiber reinforced polymer composites to. Glass fiber reinforced polymer gfrp dowel bars were installed on one new construction project and two dowel bar retrofit projects to evaluate the performance of this type of dowel bar in comparison to steel dowel bars installed on the same contracts.
The present work describes the mechanical properties and development of a new set of synthetic and liquid epoxy resin. Fiber reinforced polymer frp composites market report. Advantages of using glass fiber reinforced polymer gfrp rebar. Naturally occurring asbestos fibers and vegetable fibers, such as sisal and jute, are also used for. Fibrereinforced polymer bolts fibrereinforced polymer threaded rods and epoxy adhesive were used to connect the ufc slab to the gfrp ibeam. Originally used merely for the construction of parts, in 1967, the architectural advantages were discovered with the attempted destruction of disneylands. Glass fibre reinforced cementitious composites have been developed mainly for the production of thin sheet components, with a paste or mortar matrix, and5% fibre content. Glass fiberreinforced plastics are normally resistant to degradation from mild acids, alkaline solutions, and humidity. Fibre reinforced polymer 1 modern construction materials. Carbon fibre reinforced polymer an overview sciencedirect.
However, the machining of glass fiberreinforced polymers gfrps is relatively slow, challenging, and shows reduced tool life while working. Use of glass fibre reinforced polymer gfrp reinforcing. Nondestructive testing of glassfibre reinforced polymers. It represents a class of materials that fall into a category referred to as composite materials. Composite beams consisting of pultruded glass fibre reinforced polymer gfrp ibeams and ultrahighstrength fibre reinforced concrete ufc slabs have been developed for use in shortspan bridges.
Glass fibre reinforced plastics gfrp are most widely used in aerospace, automobile and marine industries owing to their omni potential properties such as a high strength to weight ratio,and a high specific stiffness. The first major interest in commercial frp vessels was in the fishing industry, starting in the late 1960s with the construction of frp shrimp trawlers. Glass fiber reinforced polymer was developed in the mid1930s and is now a preferred construction material. In fiber glass products the resin or matrix transfers the shear and the glass fibers resist the tensile and compressive loads. It is an ideal glass alternative that offers design flexibility, chemical, durability, and chemical and shatter resistance.
Fiber glass composite materials exhibit significant reduction in the weight than the composites made of steel or timber. It is used to manufacture a wide range of structural components by injection or compression moulding. Reinforcing polymer material with fibers improves their. Glass fibrereinforced plastic an overview sciencedirect. Composite materials are made by dispersing particles of one or more materials in another material, which forms a continuous network around them. In this work, glass fiber reinforced epoxy composites were fabricated.
The thz images show the textures of the fibre network within the specimens and are compared with xray images. The components retain their original form and contribute their own unique properties that result in a new composite material with enhanced overall performance. Glass fiber reinforced polymer dowel bar evaluation. For instance, the term frp for fiber reinforced plastic usually indicates a thermosetting polyester matrix containing glass fibers1, and this particular composite has the lions share of todays commercial market. Fiber reinforced polymer frp materials are composite materials that typically consist of strong fibers embedded in a resin matrix. The main focus of this work was to fabricate this composite material by the cheapest and easiest way. Pdf glass fibers reinforced polymer composites have been prepared by various manufacturing technology and are widely used for various applications. Introduction fibre reinforced polymers and composites are increasingly used as constructional materials for their lightness and robustness. Rarely, other fibres such as paper, wood, or asbestos have been used. Initially, ancient egyptians made containers by glass fibers drawn from heat softened glass. Use of glass fibre reinforced polymer gfrp reinforcing bars. Carbonfibre reinforced polymers offer good potential for the manufacture of conrods. Unstressed frp reinforcement has been developed in a number of forms including ribbed frp rod similar in appearance to deformed steel reinforcing bar, undeformed eglass and carbon fibre bar bound with polyester, vinylester. Various applications of gfrc shown in the study, the experimental test results, technoeconomic comparison with other types, as well as the financial.
Design of fibre reinforced concrete beams and slabs. Paper open access related content experimental investigation. Apart from providing the facade with solar protection, they provide the building the aesthetic that the architects were looking for. Glass fibre reinforced polymer composites toughened with. As constructional material, steel has been a huge success story ever since the industrial revolution. Fibre reinforced polymer frp in construction, types and uses. Glass and carbonfibre reinforced plastics are examples. This masters thesis was carried out, between january 2011 and june 2011, at the. Different systems of externally bonded frp reinforcement exist. D m nuruzzaman1, a k m asif iqbal 2, a n oumer3, n m ismail and s basri2. Mechanical characterization of thermoplastic abs glass fibre.
Pdf this paper presents the results of an experimental investigation aiming at determining the mechanical properties of glass fiber reinforced polymer. Frp plates, sheets, and jacketsseveral types of glass, carbon, or aramid fiberreinforced polymer frp composites are used to strengthen concrete members. Fiber reinforced polymer frp bars uses, advantages. It comprises short glass fibers in a matrix of a polymer material. Butadine styrene used as an matrix and glass fibre as an reinforcement agent. S80612 design and construction of building components with fibre reinforced polymers. Mechanical properties of glass fibre reinforced polymer based. Advanced composite materials like frp was adopted by us and canada for structural applications in the late 1990s. The benefits of gfrp have been discovered throughout the years and this includes its incredible durability as seen in the attempted demolition of disneylands house of the future in 1967, when the wrecking ball simply bounced off the fiberglass walls of the structure. The fiberglass chopped strand e glass mat that backs up the veil forms the balance of the corrosion liner. Gfrp is a category of plastic composite that specifically uses glass fiber materials to mechanically improve the strength and stiffness of plastics11.
Frp sheets come in two forms, pre cured laminates that is, rigid plates that can only be applied to flat surfaces, and thin sheets that can either be attached to flat surfaces or. A composite material made of a polymer reinforced with fibres. Gfrp can be used for both interior and exterior fixtures in a variety of shapes, styles, and textures. Rarely, other fibres such as paper, wood, or asbestos have been. However, too high a glass content may result to insufficient impregnation, and therefore poorer bonding. The fibers provide strength and stiffness to the composite and generally carry most of the applied loads. Gfrp is a specific term and refers to glass fiber reinforced polymer.
Fibre reinforced polymer frp composite is defined as a polymer that is reinforced with fibre. The matrix acts to bond and protect the fibers and to provide for transfer of stress from fiber to fiber through shear stresses. Experimental investigation on the mechanical properties of glass fiber reinforced nylon. Compared to the native polymer, glass filled materials have improved mechanical properties of rigidity, strength and may also have improved surface hardness. Report date april 2001 the flexural capacity of reinforced concrete beams 6. The glass content does not make the dowel more or less susceptible to. As an example of the use of frp in towers the project of bbva headquarters in madrid, designed. Pdf characterization of glass fibre reinforced polymer. Mechanical properties of glass fiber reinforced polymers. With 14 the weight of steel rebar, this product exceeds the requirements of astm d7957 standard specifications for solid round glass fiber reinforced polymer bars for concrete reinforcing. The influence of moisture and temperature on mechanical. Pdf retrofitting of concrete short column using glass. In this study, glass fiber was used as reinforcement with nylon for making glass fiber reinforced nylon composite specimens using the injection molding process.
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