Mohamed Zakariah Mustapha
Published on March 23, 2015
Decisions to use any road surfacing material are usually based on traffic level, soil conditions, atmospheric factors and costs. In many cases, the initial construction cost is usually the main consideration; the future maintenance and replacement costs are hardly taken into consideration during this period. Life Cycle Cost Analysis provides a methodology for calculating the cost of a different projects, materials or service during its lifetime. It can also be used to compare competing road design alternatives over the lives of each alternative, considering all significant costs and benefits, expressed in equivalent monetary value. This project presents the Life cycle costing analysis of four commonly used road pavement materials namely asphalt, concrete, bitumen and tarmac. It involves a structured approach which was used to identify both direct and indirect costs that may occur during the lifecycle of these four road pavement. The research methods used involves the review of an extensive literature on the design of roads, construction, maintenance and replacement. The benefits of the application of life cycle methodology were also presented. Both qualitative and quantitative research methods were also used in the collection and analysis of relevant primary data from an Engineer who has worked for over 10 years at Derby City Council. The result obtained provides a basis for comparing alternative maintenance intervention strategies for the road surfacing materials and helped to identify the most economically advantageous option over a defined period. The Net Present value (NPV) was used to convert future costs to present values so that the lifetime costs of different road materials can be assessed. The results show that asphalt in comparison to the rest the materials used is the most economic for its value.