Design and analysis of bitumen mix for hearing course / Paisal Salim

Bitumen mix is widely used in the design and construction of road pavement for Wearing Course. It has the properties to provide a smooth running surface on which the traffic runs beside the flexibility of construction techniques available and relatively cheaper in cost. This experimental research project attempt to determine the optimum bitumen content for Wearing Course of road pavement based on Marshall test method. In this method, the Marshall properties, such as density, air voids, voids filled with bitumen, stability and flow, are plotted against bitumen content. The range of bitumen contents that satisfy each of the properties are computed, and subsequently the range of bitumen content that satisfy all requirement is determined. The range of bitumen content used is between 4.5% to 7.0% The sample are prepared and tested, with the bitumen contents varies at 0.5% intervals