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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.
studying the recycling of bituminous pavements is important to achieve a set of objectives. The most important one is to examine the asphalt obtained from the recycled bituminous pavements in order to identify its properties and suitability for reuse according to its serviceability, reductions and cost benefit.
This research demonstrated a way to study the thermal properties of raw and recycled High Density Polyethylene HDPE which is used to make oil containers. Also, the research has dealt with the effect of recycling on blow molding process used to manufacture these containers.
This paper presents an experimental study to determine the physical and some other important properties of certain waste materials, in order to identify the appropriate field of their recycling. The experiments have been carried out using five proposed materials, namely: corn cob, peanut peel, straw, pine cone, and sticks of the stem Thistle Syrian plants.
A synthetic fibre from polyolefins wastes was obtained as follow: 1. From polyethylene and polypropylene wastes in various percentages to get the optimum percentage in the fibre 2.From polyethylene and polypropylene gralunar. We used an indirect recycling operation using extrusion by the extruder. The obtained fibre was tested mechanically, physically and chemically and the results demonstrate that the production of these fibers are available laboratorially and industrially.
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