Mechanical Properties of Pavement Tiles Manufactured from Waste Plastic and River Sand
Creators: name: Getenet Tefaye
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2020
Subjects: Waste Plastic, High density polyethylene (HDPE), Manufactured Pavement tile, Mechanical Properties

description: Plastic wastes are the major environmental concerns that need rapid and continuous<br> Solution. These wastes have to be either recycled or converted to products. Apart from this,<br> construction industry is growing with booming rate with high demand of construction<br> materials. This thesis work is aimed to study the mechanical properties of pavement tiles<br> manufactured from waste plastic and river sand in construction applications. The<br> significance of this study it will minimize plastic waste and if this study is successfully<br> converted to actual production at industrial level, it will have many fold benefits both for<br> producers and for the local community their environmental effects and cost to treat them<br> and it can minimize environmental pollution. The production steps include: raw materials<br> preparation (collection), melting the plastic wastes, mixing molten plastic and sieved river<br> sand and molding. The single and the interaction effects of three processes variable<br> (percentage of plastic waste, sand particle size and percentage and melting point<br> temperature) on the compressive strength and water absorption of tiles were analyzed and<br> discussed. In this thesis work different proportion of river sand to waste plastic have been<br> used to get the best compressive strength and it is 13.12Mpa which way beyond than the<br> conventional one namely concrete tile. For the production of one tile it costs almost 6.5 birr<br> on the other hand the time consumption for manufacturing of one tile is 14.5minutes note<br> that this minute is taken from traditional way of production system for the future the time<br> will be minimized by using mechanical production system, and totally the tile can be ready<br> for the intended purpose within 1-2 days. The water absorption of plastic tiles is 0.17% and<br> the maximum water absorption of conventional concrete tile is 0.5% so the plastic tile is<br> 194% less water absorbent than the concrete tiles which makes it recommendable for outdoor services like pedestrian roads, parking areas etc. This research can create a wide range of job opportunity for micro and small enterprises who are participating in waste collecting jobs and on the other hand it also can create so many job opportunities for the peoples who<br> participate in plastic tile manufacturing industries. The produced pavement tiles were analyzed for their mechanical properties such as compressive strength and physical properties such as water absorption, compared to conventional materials. Since the required properties are in the commonly experienced range, and it can be that plastic wastes can be used for the production of tiles in the presence of High density polyethylene (HDPE) and Polyethylene Terephthalate (PETE or PET) and reinforcing river<br> sand. Here, the plastic waste used for binding purpose and it can be potential substitution for cement in the production of composite pavement tiles. The optimal ratio is 1:2 this means one part of waste plastic and two Part of River sand which leads to pavement tiles