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INTERNATIONAL JOURNAL OF INFORMATION AND COMPUTING SCIENC ISSN NO: 0972-1347 production of goods started and plastic seemed to be cheaper and effective raw material .Today ,every vital sector of the economy starting from agriculture to packing ,automobile, building construction, communication or info tech has been virtually revolutionized by the applications of plastic[2,3]. Use of these non-biodegradable (according to recent studies, plastics can stay unchanged for as long as 4500 years on earth) product is growing rapidly and the problem is what to do with plastic-waste. Big attention is being focused on the environment and safeguarding of natural resources and recycling of wastes materials. Actually many industries are producing a significant number of products which incorporate scrap (residues). In the last 20 years, a lot of works concerning the use of several kinds of urban wastes in building materials industrials process have been published. Many researchers have been extended to study new kinds of wastes to investigate deeply particular aspects. The addition of wastes, apart from the environmental benefits, also produces good effects on the properties of final products [4,5]. One of the new waste materials used in the concrete industry is recycled plastic. For solving the disposal of large amount of recycled plastic material, reuse of plastic in concrete industry is considered as the most feasible application. Recycled plastic can be used as coarse aggregate in concrete. However, it is important to underline that re-using of wastes is not yet economically advantageous, due to the high costs of transport and its effect on the total costs of production. Moreover, it is important not to neglect other costs, directly referable to the kind of wastes, due, in particular, to the need of measuring gas emission, during firing, and the presence of toxic and polluting elements[6,7]. Materials used in the present study Cement Ordinary Portland cement Zuari-53 grade conforming to IS: 12269-1987 [6] were used in concrete. The physical properties of the cement are listed in Table 1. Table 1. Physical Properties of Zuari-53 Grade Cement Sl.No.1234 5 Prope rties Specifi c gravity Norma l consist ency Initial setting time Final setting time Compressive strength (Mpa) Value 3.15 32% s 60 min 320 min 28d ays 37 day day ss 29.4 44.8 56.5 Volume 5, Issue 7, July 2018 102 http://ijics.com/PDF Image | Plastics Pipe Institute Handbook of Polyethylene Pipe
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