Abstract
Study on Behaviour of Hybrid Fibre Reinforced Cementitious Composites
Highlights
1.1 GENERAL Concrete is most widely used material for the construction
Fibres prevents sudden and catastrophic failures under earth quake and blast type loading 1.5 APPLICATIONS Some of the applications of engineered cementitious composites are listed below: It is used as repair material in bridges, dams, road construction repair It is used in the shear element to increase shear resistance
3.1 PROPERTIES OF MATERIALS 3.1.1 CEMENT The ordinary Portland cement (OPC) of 53 Grade was used for the production of the cementitious composite
Summary
1.1 GENERAL Concrete is most widely used material for the construction. In ancient time itself the people started to use concrete for the construction because of its brittleness and compressive strength. 1.2 DEFINITION Engineered cementitious composite is “a special type of high performance fibre reinforced concrete containing small amount of short random fibres micromechanically designed to achieve high damage tolerance under severe loading conditions and high durability under normal service conditions”. ECC material can improve tensile strength, ultimate strain capacity and large strain hardening properties than conventional concrete. The addition of fibre improves the tensile strength, toughness along with strain capability, and it shows high damage tolerance These properties significantly the strain hardening behaviour of the material. 1.3 FIBRE REINFORCED CONCRETE Advanced cement based materials and improved concrete construction techniques provide opportunities for the design of structures to resist severe loads resulting from earthquakes, impact, fatigue, and blast environments. The addition of fibres to the conventional concrete is varying from 1% to 2% by volume depending on geometry of fibres and type of application
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