International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 06 | Jun 2023
p-ISSN: 2395-0072
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Study on Flexural and Shear Behaviour of Metalized Plastic Waste Fibre Reinforced Green Concrete Prageeth P G 1 * Kavya Mohan2* 1MTech Student, Department of civil engineering, Rajadhani Institute of Engineering and Technology, Kerala, India 2Assistant Professor, Department of civil engineering, Rajadhani Institute of Engineering and Technology, Kerala,
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Abstract – Metalized Plastic Waste (MPW) is a major kind
furnaces is silica fume, sometimes referred to as micro silica. When added to Portland cement concrete. which primarily consists of amorphous (non-crystalline) silicon dioxide (SiO2), enhances the material's properties, particularly its compressive strength, bond strength, and abrasion resistance. Silica fume, which is used in concrete due to its fine particles, large surface area, and high SiO2 content, is a highly reactive pozzolan. The volume of big pores is significantly reduced in all ages when silica fume is included in concrete mixes made with regular Portland cement. Because of its fineness, it essentially serves as a filler. Compared to concrete without silica fume, it is more cohesive and less prone to segregation and bleeding.
of plastic waste produced mostly by the food packaging sector globally. MPW is unsuited for effective recycling, leads to pollution and garbage rise, and is hazardous to the environment. The use of cement in the construction of concrete structures has a substantial influence on environmental pollution due to the emission of carbon dioxide. Employing industrial by-products with pozzolanic reactivity as a cement substitute can minimise carbon dioxide emissions while also improving the hardened characteristics of concrete. In this investigation, MPW fibre is added to concrete at 0 %, 0.25 %, 0.5%, 0.75 %, and 1 % by total volume of concrete, with cement substituted with 10 % silica fume. The optimum amount of MPW fibre in green concrete is determined by examining the fresh and hardened characteristics. Flexural and shear behaviours are investigated utilising the optimal dose of MPW fibres. In the case of flexural and shear behaviour studies, the optimal specimens achieve almost the same failure load as the control specimen. MPW fibre reinforcement improves fracture resistance and increases specimen ductility.
In this study cement is replaced by 10 % silica fume. Silica fume is substituted with cement from 5 %-15 % further it decreases the mechanical properties [5]. The silica fume concrete provides an increased compressive strength compared to other cement replacing materials such as natural zeolite [1]. By analysing research works it is identified that the silica fume concrete can increase the mechanical strength than conventional concrete at 28 days curing [6] and 10 % replacement of cement with silica fume provides more mechanical strength [6]. Many studies are being undertaken to test the performance of MPW fibre in various types of concrete. There hasn't been a lot of research done on MPW fibres in silica fume-based concrete. There has been no research in to the behaviour of shear fractures in MPW fibre reinforced concrete.
Keywords: Metalized Plastic Waste (MPW) Fibres, Silica fume concrete, Sustainability, Mechanical properties, Flexural behaviour, Shear behaviour
1.INTRODUCTION Metalized plastics are a non-bio degradable waste material mainly produced from the food packing industry. The constant demand for plastic in daily use by a growing population has led to an alarming rise in post-consumer plastic waste, posing a danger to the environment. The current scenario in food industry has led to large-scale production of metallised plastic wastes (MPW). MPW is relatively unsuitable for effective recycling because it is made by a polymer coated in a thin layer of aluminium film therefore the recycling is not cost effective and mainly contributes to littering and landfill expansion thus, posing an environmental hazard. Safe and sustainable disposal methods are needed for the safety of the environment, current and the future generation.
The MPW fibres are added to the total volume of concrete at 0 %. 0.25 %. 0.5 %, 0.75 % and 1 %. The MPW fibres are. distributed uniformly throughout the concrete. A total of 5 mixes are prepared with different dosage of MPW Fibre. For compressive strength test cube specimens are casted with a size of 150 × 150 × 150 mm, cylinders are casted with a size of 150 mm diameter and 300 mm length for split tensile strength test, prisms are casted with a size of 100 × 100 × 500 mm for flexural test. The optimum percentage value is used for conducting flexural and shear behaviour study of RC Beams. The flexural and shear behaviour was conducted in 1 m × 0.15 m × 0.15 m size beam specimen under three-point loading in Universal Testing Machine (UTM). The flexural and shear crack
One of the industrial by-products obtained from the exhaust gases of ferrosilicon, silicon, and other metal alloy smelting
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