GLASS FIBE R REINFORCED CONCRETE

ABSTRACT:

Glass-fibre reinforced concrete (GRC) is a material made of a cementatious matrix composed of cement, sand, water and admixtures, in which short length glass fibres are dispersed. It has been widely used in the construction industry for non-structural elements, like façade panels, piping and channels.GRC offers many advantages, such as being light weight,  students debt consolidation loans.

fire resistance, good appearance and strength. In this paper trial tests for concrete with glass fiber and without glass fiber are discussed to indicate the differences in compressive strength and flexural strength by using cubes of varying sizes. Various applications of GFRC shown in the paper, the experimental test results, techno-economic comparison with other types, as well as the financial calculations presented, indicate the tremendous potential of GFRC as an alternative construction material

 INTRODUCTION

            

GLASS Fiber Reinforced Concrete (GFRC) or (GRC) is a type of fiber reinforced concrete. Glass fiber concrete are mainly used in exterior building façade panels and as architectural precast concrete. This material is very good in making shapes on the front of any building and it is less dense than steel. GFRC is a form of concrete that uses fine sand, cement, polymer (usually an acrylic polymer), water, other admixtures and alkali-resistant (AR) glass fibers. Many mix designs are freely available on various websites, but all share similarities in ingredient proportions. Glass fibre reinforced cementitious composites have been developed mainly for the production of thin sheet components, with a paste or mortar matrix, and ~5% fibre content. Other applications have been considered, either by making reinforcing bars with continuous glass fibres joined together and impregnated with plastics, or by making similar short, rigid units, impregnated with epoxy, to be dispersed in the concrete during mixing.  

Glass fibres are produced in a process in which molten glass is drawn in the form of filaments, through the bottom of a heated platinum tank or bushing. Usually, 204 filaments are drawn simultaneously and they solidify while cooling outside the heated tank; they are then collected on a drum into a strand consisting of the 204 filaments. Prior to winding, the Filaments are coated with a sizing which protects the filaments against weather and abrasion effects, as well as binding them together in the strand Glass fibre reinforced concrete (GFRC) consists of a cementitious fine-grained concrete reinforced with alkali-resistant glass fibres. The use of glass fibres instead of steel makes components and structures thinner, more streamlined and ultimately lighter than concrete parts with metal reinforcement. These properties mean that GFRC is used above all in the manufacture and design of very thin-walled, lightweight façades and similar components. Phoenix dui lawyers.

 HYPOTHESIS

Most ideas used in this paper to promote the various applications  of GFRC  are based on designed and analytical calculations by S.S. Pimpkikar (presently Professor and Head of the Department of Civil Engineering, Maharashtra Institute of Technology, Pune). In this paper GFRC refers to glass fiber reinforced concrete  . Test results in this paper have been taken from the test conducted by S.S pimpkikar and the results have been proved experimentally. Many of the content in the paper deal with comparison of  GFRC and ordinary concrete in various aspects like strength, cost, weight  Secured Loans .

ADVANTAGES OF USING GRC OVER CONVENTIONAL CONCRETE

                                        

 White cement, when reinforced with glass fibre, produces precast elements much thinner—typically 10 mm—than would be possible with traditional steel-reinforced precast concrete, where 30mm or more concrete cover to the steel is essential as protection against corrosion. Thinner sections are also made possible by the low water: cement ratio of the material, the lack of coarse aggregate, and its low permeability. As a result, panels of equal strength and function of precast concrete can be produced with thinner sections and therefore less weight. The tests conducted on GFRC in laboratory have shown good resistance for fire, since the major use of GFRCs is for architectural building panels. In these buildings, fire resistance becomes an important factor in design. Tests on telecommunication towers by using GRC with carbon fibre and/or stainless steel bars have shown that GRC can be used as structural material,  car free insurance online quote .