Effects of Candle Wax on the Physical Properties of Grade 80/100 Bitumen used in Asphalt Road Pavements in Nigeria
Keywords:
Bitumen, Physical Properties, Candle Wax, Road PavementsAbstract
Improving on the performance of bituminous concrete (i.e. a typical flexible road pavement) has been one of the major concerns in highway engineering, due mainly to the problems of temperature susceptibility and oxidation of bitumen as a road construction material. However, there are several methods and techniques in which this can be achieved ranging from quality of aggregates used to quality of binder, particularly bitumen used during construction. On this basis, this study was directed towards exploring techniques that will improve the performance of bitumen by modifying its physical properties using non-bituminous modifier (candle wax). The results revealed that the addition, of varying amounts of candle wax between 5-25% by weight of bitumen linearly improved the properties of the grade 80/100 bitumen considerably; thus providing bitumen that will enhance the overall performance of the asphalt road pavement.
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