Comparative life cycle assessment of asphalt pavements using reclaimed asphalt, warm mix technology and cold in-place recycling

Abstract In this work the environmental sustainability of asphalt pavement is analyzed, from material production and maintenance strategy point of view. The work consists of an analysis of the life cycle of 1 km of road pavement and includes all stages of the life cycle: from extraction of virgin materials to end of life. Three types of pavements are compared, among which one produced with virgin materials and traditional technologies in plant, which is used as a reference, and two in which the use of Reclaimed Asphalt Pavement (RAP) and Warm Mix Asphalt (WMA) technology are combined. Also the implementation of the practice of Cold In-Place Recycling (CIR) at the end of life is considered from an environmental point of view: after the first 15 years of life the comparison is made between traditional recycling in plant and CIR. The impacts are evaluated using different methods. Decrease in environmental impacts are found for the options that combine the use of RAP and WMA reaching up to a percentage of reduction of 12% for CO2eq, 15% for energy consumptions, 15% for water used during the lifecycle, and 10–15% for the three macro-categories of damage evaluated in the ReCiPe endpoint method. Additional reductions could be achieved by applying also CIR technology especially for greenhouse gas emissions (−9%).

[1]  Brian D Prowell,et al.  Warm-Mix Asphalt: European Practice , 2008 .

[2]  John A. Gambatese,et al.  Energy Consumption of Asphalt and Reinforced Concrete Pavement Materials and Construction , 2005 .

[3]  Brian K Diefenderfer,et al.  A life cycle assessment of in-place recycling and conventional pavement construction and maintenance practices , 2015 .

[4]  Agnès Jullien,et al.  Air emissions from pavement layers composed of varying rates of reclaimed asphalt , 2006 .

[5]  F. Moreno,et al.  Warm mix asphalt: an overview , 2012 .

[6]  G. Psacharopoulos.  Overview and methodology , 1991 .

[7]  Stephen T Muench,et al.  Roadway Construction Sustainability Impacts , 2010 .

[8]  J. Dutoit.  The Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) , 2007 .

[9]  M. Hauschild,et al.  Life cycle assessment of disposal of residues from municipal solid waste incineration: recycling of bottom ash in road construction or landfilling in Denmark evaluated in the ROAD-RES model. , 2007, Waste management.

[10]  Yue Huang,et al.  Development of a life cycle assessment tool for construction and maintenance of asphalt pavements , 2009 .

[11]  Bin Yu,et al.  Life cycle assessment of pavement: Methodology and case study , 2012 .

[12]  E. Friedman.  Life cycle. , 2003, Health Forum journal.

[13]  Tony Parry,et al.  Sensitivity analysis of methodological choices in road pavement LCA , 2012, The International Journal of Life Cycle Assessment.

[14]  Agnès Jullien,et al.  Sensitivity of the LCA allocation procedure for BFS recycled into pavement structures , 2010 .

[15]  Tseng-Hsing Hsu,et al.  Life cycle assessment on using recycled materials for rehabilitating asphalt pavements , 2008 .

[16]  Kwang-Ho Park,et al.  QUANTITATIVE ASSESSMENT OF ENVIRONMENTAL IMPACTS ON LIFE CYCLE OF HIGHWAYS , 2003 .

[17]  Henrikke Baumann,et al.  The hitch hiker's guide to LCA : an orientation in life cycle assessment methodology and application , 2004 .

[18]  John T Harvey,et al.  Life Cycle Assessment of Pavements , 2014 .

[19]  Eric Masanet,et al.  Life-cycle assessment of pavements. Part I: Critical review , 2011 .

[20]  I van Wijk,et al.  The use of warm mix asphalt as surfacing on a heavy vehicle route: a case study in South Africa , 2015 .

[21]  Anna Björklund,et al.  Opportunities for environmentally improved asphalt recycling: the example of Sweden , 2013 .

[22]  N. H. Ravindranath,et al.  2006 IPCC Guidelines for National Greenhouse Gas Inventories , 2006 .

[23]  Rosario Vidal,et al.  Life cycle assessment of hot mix asphalt and zeolite-based warm mix asphalt with reclaimed asphalt pavement , 2013 .

[24]  Xiao Yao-hu,et al.  On Warm Mix Asphalt , 2010 .

[25]  Yue Huang,et al.  Development Of A Life Cycle Assessment Tool For Sustainable Construction Of Asphalt Pavements , 2008 .

[26]  Guillermo Thenoux,et al.  Energy consumption comparison for different asphalt pavements rehabilitation techniques used in Chile , 2007 .

[27]  Nicholas Santero,et al.  Life Cycle Assessment of Pavements: A Critical Review of Existing Literature and Research , 2010 .

[28]  Robert B. Noland,et al.  Life-Cycle Greenhouse Gas Emissions of Materials Used in Road Construction , 2012 .

[29]  H Stripple.  LIFE CYCLE ASSESSMENT OF ROAD: A PILOT STUDY FOR INVENTORY ANALYSIS. SECOND REVISED EDITION , 2001 .

[30]  Ioanna Papayianni,et al.  Comparative life cycle assessment of concrete road pavements using industrial by-products as alternative materials , 2015 .

[31]  Björn Birgisson,et al.  Life cycle assessment framework for asphalt pavements: methods to calculate and allocate energy of binder and additives , 2014 .

[32]  Eric Masanet,et al.  Life-cycle assessment of pavements Part II: Filling the research gaps , 2011 .

[33]  Stephen A Cross,et al.  Life-Cycle Environmental Analysis for Evaluation of Pavement Rehabilitation Options , 2011 .