Effects of Plastic Waste Materials on Geotechnical Properties of Clayey Soil

Abstract Recently, the use of plastic products, such as polyethylene (PE) bottles and polypropylene (PP), has been significantly increased, which may lead to many environmental issues. Therefore, it is important find methods manage these waste materials without causing any ecological hazards. One wastes soil stabiliser materials. In this study, PE PP have used in form fibres. The effect stabilisation was evaluated through carrying out standard laboratory tests. These tests conducted on natural stabilised soils with four fibre contents (1%, 2%, 3%, 4%) weight. included compaction test, unconfined compressive strength (UCS) California Bearing Ratio (CBR) resilient modulus (Mr) all tests, content added two lengths, were 1.0 cm 2.0 cm. Laboratory test results revealed that pieces decrease maximum dry density (MDD) optimum moisture (OMC) soils, are required for construction embankments lightweight addition, there a significant improvement UCS by 76.4 96.6% both lengths fibres 57.4% 73.0% fibres, respectively. Results CBR demonstrated inclusion clayey improves deformation behaviour especially 4% cm, respectively, figure 185 150% PP, Furthermore, Mr mechanical properties improved an extent. For increase content, increased about 120% at PE. However, declined 3% content. material, shall be sought.