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Journal: International Journal of Civil Engineering and Technology (IJCIET) (Vol.9, No. 1)

Publication Date:

Authors : ; ;

Page : 230-237

Keywords : Steel; Concrete; FRC; Fibre; Aggregate; polyamides; Sub Area: Material Engineering; Broad area: Structural Engineering;

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Concrete is mainly used material for the construction of various types of structures in the modern time of civil infrastructures. Concrete is strong in compression but it is weak in tension and shear. To eliminate those problems, fibres were introduce in concrete to enhance its tensile strength and shear strength. By using fibres in concrete mix it converts brittle nature of concrete into ductile nature. Various Efforts are being made in the field of concrete technology to develop such type of concretes which have special characteristics. In the ancient time only plain and straight steel fibre were used. In modern development of fibre reinforced concrete some new type of fibres like glass, carbon, polypropylene and aramid fibres are provided in plain concrete for the improvement in tensile strength, fatigue characteristics, shrinkage characteristics, impact, flexural strength, and compressive strength. The various properties of FRC depend on fibre geometry, type, modulus of elasticity, stiffness, aspect ratio, fibre content and fibre orientation. Aggregate size and matrix strength is also an important parameter of fibre reinforced concrete. To use concrete as a load bearing member it is necessary to increase tensile resistance property of the concrete member. This phenomenon is achieved from hundred year back or more by using primary reinforcement and also by the Application of prestressing. Both of the two methods provide tensile strength to the structural element but do not increase the inherent tensile strength of concrete matrix itself. The overall performance of reinforced concrete composite material is affected then the individual performance of the concrete itself. This led to the search for new material i.e. two phase composite material in which weak concrete matrix is reinforced with strong fibre to produce composite of superior property and high performance. In two phase composite fibrous material, fibres inhibit the deformation of the concrete matrix and import to increase the properties of stiffness and strength. The main purpose of combining organic fibre (polyamide) and inorganic fibres (glass and steel) is to achieve superior properties of plain concrete strength. The main purpose of combining organic fibre (polyamide) and inorganic fibres (glass and steel) is to achieve superior properties of plain concrete.

Last modified: 2018-05-22 18:04:23