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Anuja Narayanan


Roads are the major constructions. In India the road networks comprises of about 59,03,293 kilometers. The aim of this project is to replace the base course of the WBM with rubber and steel stacked mats. Over 1 million tonnes of rubber tyre wastes are produced in India and about 15 million tonnes of rubber tyre wastes are produced. In that about 60% of the rubber wastes are recycled. The reason for choosing rubber and steel is why because rubbers have the capacity of flexibility and steel have high strength to bear the load coming from the top surface. This tyre of arrangements are seen in elastomeric bearings which are used in bridges, Earthquake resistant structures etc., The methodology is to prepare the mats by incorporating rubber and steel back to back and at certain intervals there will be groove at this place the mats can be rolled. The prepared mats are placed over the sub base course and rolled. Basically, a hole is made in the mat at certain intervals in order to increase the density of soil so that the bearing capacity of soil will be increased. The hole in mats allows soil inside and hence the density of soil is increased at the same time the mat is also inserted into the soil. Over the mat fine courses are dumped and rolled. The mats that are used can be rolled and hence easily transported. The compaction period for the base course can be avoided by using this mat. This kind of methodology is proposed and appreciated only for Water Bound Macadam roads. This methodology reduces the overall time for laying the roads and at the same time it recycles the waste tyers produced. The overall cost of project is also reduced. At the end we can obtain a very efficient road which can be laid over a little period of time.

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