ABSTRACT
Pavement construction is a major employer in the United States; it is a critical driver of infrastructure development, which supports industries, and key to lifeblood of the economy. Therefore, adopting sustainable pavement engineering practices will be an important step towards the implementation of the principles of sustainable development. The key sustainability dimensions are often illustrated by three circles-social, environmental and economic, where sustainability is achieved in confluence of them. Sustainable construction (SC) refers to the integration of environmental, social and economic considerations into construction business strategies and practices. Many departments of transportation (DOTs) have established their own sustainability goals and developed authorizing environments. The concept of life cycle assessment (LCA) has steadily gained importance over the last decade, as a criterion for evaluation of sustainability of a product or a system. LCA has been defined as a structured method that quantifies environmental impact over full life cycle of a system or product, including impacts that occur throughout the supply chain.
