International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 04 Issue: 07 | July -2017
p-ISSN: 2395-0072
www.irjet.net
AN EXPERIMENTAL STUDY ON SIFCON USING M – SAND AND PARTIALLY REPLACING CEMENT WITH SILICA FUME CHIRANTH GOWDA M1, MELITIA D’MELLO2 1PG
Student, Dept. of Civil Engineering, Shree Devi institute of technology, Mangalore, Karnataka, India. professor, Dept. of Civil Engineering, Shree Devi institute of technology, Mangalore, Karnataka, India. ---------------------------------------------------------------------***--------------------------------------------------------------------1.1 SIFCON Abstract - SIFCON is a high strength fiber reinforced 2Assistant
concrete which has high ductility, crack resistance and impact resistance. SIFCON is produced by a process in which fibers are put into an empty mould, after which the fiber mass is infiltrated by a slurry. An experimental program is conducted in order to study the behavior of SIFCON by using M-sand and partially replacing cement with silica fume. Strength tests were conducted to study the mechanical properties of SIFCON. Non-destructive tests such as Rebound hammer and Ultrasonic pulse velocity tests are also performed.
Slurry infiltrated fibrous concrete (SIFCON) could be said a generally another, one of a unique kind and exceptional sort of fiber reinforced concrete. SIFCON has incredible potential for application in areas where high flexibility, ductility and imperviousness to impact effect are required. SIFCON is made by preplacing short discrete filaments of steel (Steel Fibers) in to the moulds to full volume or to the desired part, consequently shaping an arrangement of network system. The fundamental contrasts amongst FRC and SIFCON apart from fiber content, is that coarse aggregates are absent in SIFCON and SIFCON has much water and cement content when compared to FRC.
Key Words: SIFCON, Steel fibers, Silica Fume, Ultrasonic pulse velocity, Rebound hammer.
1. INTRODUCTION
1.2 Necessity of Fibers
Concrete is most basic and much of the time utilized building material in development field which is utilized everywhere throughout the world. Concrete comprise of cement, water fine aggregates and coarse aggregates, water blended with concrete structures a glue which ties the sand and aggregates. Within a couple of hours initial hardening happens. Full strength of the solid concrete is accomplished in a little while. The strength gaining procedure of solid concrete will proceed over numerous years.
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Concrete which is made using Portland cement groups a few qualities such as strong in compression and weak in tension. This shortcoming can be overcome by usage of steel bars for reinforcement. Hence, for certain degree weakness can be dispensed with by expansion of certain fiber by adequate volume. The expansion of various strands in the solid blend will help in mechanical Improvement of Portland cement which is called fiber reinforced concrete (FRC).
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1.3 Factors affecting the efficiency of SIFCON The following factors affect the parameters such as ultimate strength, ductility and energy absorption of SIFCON.
Concrete has low strain limit thus as rigidity which assistant outcome in low resistance towards cracks. To upgrade such properties, this Fiber reinforced concrete has been created. Strands are relied upon to upgrade unbending nature, flexural quality, toughness and effect resistance and it likewise controls splitting. As to improve these properties a few strands are presented of various shapes and sizes and are created for use in Fiber reinforced concrete.
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Impact Factor value: 5.181
It Increases the Tensile strength, ductility and durability of concrete as well as decreases water and air voids Increase durability of concrete Fibers has prominent role in the performance of creep Minimizes the reinforcement bars used in concrete Fibers will improve dynamic properties and static properties Improves resistance towards plastic shrinkage Enhances the Structural strength of concrete and free-thaw resistance
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Strength of the slurry Alignment and volume of fiber Type of the fiber Water cement ratio
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