International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 08 Issue: 06 | June 2021
p-ISSN: 2395-0072
www.irjet.net
STUDY ON THE MECHANICAL PROPERTIES OF FIBRE REINFORCED CONCRETE MADE OF POLYPROPYLENE FIBRE AND STEEL INDUSTRIAL WASTE Monika P1, Pooja R G2, Siddesh B3, Vivotuonuo Miachie O4, Mrs. R S Dakshayini5 1-4UG Students, Malnad College of Engineering R S Dakshayini: Associate Professor, Dept. of Civil Engineering, Malnad College of Engineering, Karnataka, India ---------------------------------------------------------------------***---------------------------------------------------------------------Concrete has ability to consume and recycle waste. Abstract - Sand is a prime material used for preparation Minimum use of natural resources and recycling of of mortar and concrete and which plays a major role in mix design. In conventional concrete, one of the ingredient sand unused materials are key elements in sustainable is replaced by steel industrial waste (SIW) and its nature is development. Nowadays, different waste materials studied in this project. In this study, extensive laboratory are used in concrete production. A lot of waste is investigations have been undertaken to study the effect of produced from steel plants while producing pig iron, varying steel industrial waste contents on the mechanical steel and end products. If these wastes are properties such as compressive strength, split tensile incorporated into the concrete production, cost of strength and flexural strength. The same study is made by production will be reduced along with reduction in adding polypropylene fibre with the dosage of 1.2% by health hazards and helping in creating eco-friendly weight of cement to the steel industrial waste concrete. environment. Polypropylene fibre increases the mechanical properties of 5Mrs.
concrete. It prevents crack formation and provides reinforcement to the concrete structure. Steel industrial waste concrete and steel industrial waste with polypropylene fibre reinforced concrete specimens were casted, cured and tested for mechanical properties. Conventional concrete specimens were also casted and tested for reference. In this experiment the results of steel industrial waste concrete, polypropylene fibre with steel industrial waste concrete and plain concrete are discussed for M30 grade of concrete.
Fibre-reinforced Concrete (FRC) is concrete containing fibrous material which increases its structural integrity. It contains short discrete fibres that are uniformly distributed and randomly oriented. Fibres include steel fibres, glass fibres, synthetic fibres and natural fibres- each of which lend varying properties to the concrete. Polypropylene fibre can improve cohesion, pump ability over long distances, resistance to plastic shrinkage during curing, structural strength, ductility and durability.
Key Words: Steel industrial waste, Polypropylene fibres, Compressive strength, Spilt tensile strength, Flexural strength.
In this study, steel industrial waste is used as replacement to fine aggregate with the addition of polypropylene fibre. Strength properties and durability properties of this concrete is carried out.
1. INTRODUCTION Concrete is one of the oldest and most common construction materials in the world. Conventionally concrete is a mixture of cement, water and aggregates. Plain concrete is good in compression but weak in tensile strength with very limited ductility and little resistance to cracking. Conventionally reinforced steel bars are used to reduce cracks and impart improvements in tensile property of concrete members. But they provide tensile strength to concrete members , they however do not increase the tensile strength of concrete itself.
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2. METHODOLOGY 1) 2) 3) 4) 5) 6) 7)
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Literature review Collection of materials Tests on materials Mix design Tests on fresh concrete Tests on hardened concrete Results and discussions
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