CONCRETE PAVEMENT A SUSTAINABLE CHOICE

Abstract

Portland cement concrete pavement (PCCP) has long enjoyed the reputation as a longer lasting, durable pavement surface with low maintenance costs. Likewise, PCCP from a safety perspective has demonstrated a reduced potential for hydroplaning and better night time visibility. This paper will look at the sustainable performance characteristics of concrete pavement by examining and documenting some of its many social, economic and environmental advantages. The paper will provide details on the various social benefits of concrete pavement including: reduced potential for hydroplaning; better night time visibility; improved stopping distance; and enhanced ride and comfort. Research on the environmental benefits such as reduced life cycle embodied energy for concrete compared to asphalt roadways, reduced “urban heat island” effect, and smog reduction are also identified. In addition, the paper will review the findings of several studies on truck fuel savings from traveling on rigid versus flexible pavement and show how these fuel savings translate into reduced greenhouse gas (GHG) and smug emissions. The reuse and recyclable nature of PCCP and use of supplementary cementing materials (SCM) will also be addressed. PCCP structures will be discussed to demonstrate the aggregate savings of when utilizing PCCP. Economic benefits such and life cycle cost and potential for reduced lighting requirements for PCCP are also being provided.