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Plastic and rubber products considered of being a great importance to humans, but their residues and wastes are a real environmental disaster. They are dumped in fields, streams and forests or buried in large landfills that pose a serious hazard th at needs to work on solve it in the best possible way. On the other hand, the economic problems caused by the erosion of concrete cement have made it the major problem of infrastructure in the industrialized countries. Over the past three decades, this problem has reached alarming proportions, which led to high repair costs, whether in concrete or in reinforcing steel, Especially acidic media due to concrete permeability of acid rainwater, where these costs exceeded initial construction amounts in some cases. This paper deals with the recycling of used tires and some types of plastic waste to be used in the preparation of insulating materials for water and heat at a low cost compared to the insulation materials currently used in the construction process, in addition to the preparation of floor tiles for internal and external use.
Manufacturing processes are the main source of waste materials, however the increasing awareness about the environment has tremendously contributed to the concerns related with disposal of the generated wastes. Solid waste management is one of the ma jor environmental concerns in the world. With the scarcity of space for land filling and due to its ever increasing cost, waste utilization has become an attractive alternative to disposal. Research is being carried out on the utilization of waste products in concrete. Such waste products include discarded tires, plastic, glass, and coal combustion by-product. This paper presents a detailed review about recycled plastics (polyethylene), as aggregates to cement mortar by replace equivalent weight of sand by plastic in regular specimen and watch its effect on the property of mortar include compressive strength, splitting tensile strength, absorption and heating effect. It is clear that compressive strength, splitting tensile strength decreased with increase in plastic content but this property increases by exposing samples to high temperatures.
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