Title: Modelling and case study of reverse logistics for construction aggregates

Authors: Sanjeev Sinha, Ravi Shankar, Pichai Taneerananon

Addresses: Field of Transportation Engineering, School of Engineering and Technology, Asian Institute of Technology, P.O. Box 4, Klong Luang, Pathumthani 12120, Thailand. ' School of Management, Asian Institute of Technology, P.O. Box 4, Klong Luang, Pathumthani 12120, Thailand. ' Field of Transportation Engineering, School of Engineering and Technology, Asian Institute of Technology, P.O. Box 4, Klong Luang, Pathumthani 12120, Thailand

Abstract: The paper proposes a stochastic reverse logistics model for product recovery of construction aggregates. The problem undertaken is to find an optimal network for aggregate recycling under uncertain demand and supply conditions. The proposed model is designed as multi-commodity and capacitated facility location problems. It is formulated as Mixed Integer Linear Programming (MILP) with the objective of minimisation of total cost. The model has been tested for real-life data for National Capital Region (NCR) Delhi, India. It was found that transportation cost was the single largest cost component in the reverse logistics network for aggregate recycling.

Keywords: stochastic modelling; reverse logistics; construction industry; demolition industry; waste recycling; product recovery; aggregate recycling; mixed integer linear programming; MILP; India; Delhi; transportation costs; logistics management; multi-commodity networks; capacitated facility location; construction aggregates.

DOI: 10.1504/IJLSM.2010.029720

International Journal of Logistics Systems and Management, 2010 Vol.6 No.1, pp.39 - 59

Published online: 01 Dec 2009 *

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