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MACHINERY SELECTION FOR DEMOLITION AND RECYCLING OF PAVEMENTS: A SIMULATION-BASED TOOL

Hassan Nasir*, Rashid Rehan,** Rizwan Younis,*** Fazal Mabood,**** Salman Saeed,**, Muhammad Sagheer Aslam** 

* Department of Civil Engineering, King Abdulaziz University, Jedah, Saudi Arabia.
** National Institute of Urban Infrastracture Planning, University of Engineering & Technology, Peshawar-Pakistan.
*** Center of Advancement of Trenchless Technologies, University of Waterloo, Canada.
**** Pavement Design & Evaluation officer, Ministry of Transportation, Ontario, Canada. 

ABSTRACT

Proper selection of the type and number of machinery on construction is critical to the total cost and duration of
projects. This especially applies to projects involving using of heavy machinery such as earthmoving projects. Currently,
many construction managers – especially in Pakistan, rely on their intuition and judgement based on past
experience to select their construction machinery fleet configuration. This approach is obviously subjective and prone
to inefficient utilization of resources. Computer-based tools, such as simulation models, have the potential to greatly
benefit the construction mangers in their routine tasks. This paper presents a unique simulation tool based on the
system dynamics methodology to help the construction manager in investigating the cost and duration implications of
various combinations of machinery items. Utility of the developed model is illustrated with the help of a case study
involving demolition and recycling of a flexible pavement. 

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Journal of Engineering and Applied Sciences

December

Vol. 42, pp. 01-48

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