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Worldwide research has been conducted concerning the use of Fiber and PET (Poly Ethylene Teraphthalate) in the area of strengthening of the reinforced concrete members. The PET bottles are the remaining from the storage of cold beverages or drinks or even water. On the other side ultra-high strength with high performance becomes the need of the hour in order to make the structure durable, sensitive to the environment and even economical sometimes. Composite material has been developing these days to satisfy the construction industry by producing concrete which are more flexible and durable. Disposing plastics in any form is the big challenge to the producers and users of plastic. Producing eco-friendly plastics have not reached its height in today’s scenario. Here is an attempt to dispose the same effectively by incorporating it in to the concrete as effective component. Crushed PET bottles have found its way in concrete when replaced for fine and coarse aggregates by its improvised strength. PET bottles ad fine aggregate and polypropylene fiber to enhance the tensile property of concrete has been made a try with M35 grade concrete in order to make it effective light weight and efficient concrete. The mechanical properties have been assessed and the performance of the concrete has been evaluated in this study.

Urbanization has become a major phenomenon in India were lakhs are migrating every year increasing the traffic congestions. In many places over population has affected the local authorities even to provide basic transport services. Traffic problems in India are already an extensive task and will become much difficult due to urbanization and changing lifestyle of people. This analysis introduces a solution to the problem in transportation in erode city. In this project the electrical obstructions for transportation movement been identified and mapped by which they can be removed or altered in their routes. An integrated approach to electric utility mapping is more than the sum of its parts. Location and mapping teams need to participate in a multi-phased process that includes lobbying and action on their part. They must be involved from start to finish. This project aims at mapping the electric utilities such as electric poles and transformers in major roadways of Erode City [Corporation limits] using GIS. These utilities have been mapped and differentiated based on their impact to the traffic flow operations in the roads. Initially, locating the utilities has been done through GPS (Global Positioning Systems) which will be very useful for finding the accurate latitude and longitude values. And then, mapping of utilities is carried out through GIS (Geographic Information Systems) which give better results in mapping. The software used for mapping is QGIS. The electric utilities which are obstructions to traffic movement are all to be identified and mapped which will be later altered in their alignment or removed.

Abstract. This paper presents an experimental investigation on the behaviour of concrete filled steel tube columns under axial compression. The steel columns were filled with self-compacting and self-curing concrete instead of normal conventional concrete. A test program consisting of square column, circular column and rectangular column was firstly conducted. The behaviour of three concrete filled steel tubular sections (CFSTs) under axial load is presented. The effect of steel tube dimensions, shapes and confinement of concrete are also examined. Measured column strengths are compared with the values predicted by Euro code 4 and American codes. Euro code 4, gives good estimation of self-compaction concrete. However, lower values as measured during the experiments were predicted by the American Concrete Institute (ACI) equation. Also, the effect of thickness of steel tubes, concrete cube strength and steel percentage is also studied. In addition to CFST column the steel tube also acts as confinement for concrete.