PERFORMANCE EVALUATION OF ASPHALT BINDER USING WASTE TIRE RUBBER, WASTE COOKING OIL AND WASTE ENGINE OIL

Abstract

Most of the roads in Pakistan are built using bituminous material (asphalt). Bitumen is susceptible to failures due to increased axle weights, heavy traffic, and harsh climatic conditions. As a result, bitumen’s performance-related qualities, such as resistance to permanent deformation, low-temperature cracking, wear, stripping, and ageing need to be addressed (Abrahim, 2012). It has revealed that bitumen and asphalt can fulfil pavement requirements by incorporating certain additives. Crumb Rubber Modified Bitumen is one such effort that improves bitumen’s elastic response at higher temperatures (Kamal et al., 2016). This research is based on the performance assessment of hot mix asphalt (HMA) by incorporating different percentages of WCO and WEO in combination with WRT in place of the ideal bitumen content. Aside from enhancing pavement construction and exploring innovative ways to improve it, the study also focuses on waste management which has been a growing problem throughout the world. According to the Environmental Protection Agency (EPA), Pakistan generates about 20 million tonnes of solid waste every year, with the rate increasing by 2.4 per cent each year (Malik, 2019). It also analyses the impact on the cost of using the waste materials as possible replacement materials. To achieve the goals of the research, several laboratory tests including penetration, ductility, softening point and rotational viscosity test were undertaken on virgin bitumen and modified bitumen. In addition, Performance tests namely the Indirect Tensile Strength test for Moisture Susceptibility and Resilient Modulus were calculated. All physical and performance test result shows that about 16% of bitumen can be replaced with WCO or

ix WEO and WRT powder. Modified bitumen carrying 4% WEO and 12 % WRT shows massive resistance to moisture. Cost Analysis of virgin bitumen and modified bitumen concluded that utilizing modified bitumen can result in the reduction of cost used per Km by almost 10-15%.