A probabilistic source assessment framework for leaching from secondary materials in highway applications

  • Defne S. Apul
  • Kevin H. Gardner
  • T. Taylor Eighmy
Original Paper


Recovered materials from the transportation sector or secondary or by-product materials from the industrial, municipal, or mining sector can be used as substitutes for natural materials in the construction of highway infrastructure. The environmental impact of traditional and newer secondary materials needs to be determined for the conditions of their expected use. The purpose of this paper is to introduce a probabilistic framework for evaluating the environmental acceptability of candidate secondary materials based on the risk of soil and groundwater contamination from leached metals and organics from the pavement. The proposed framework provides a structured guidance for selecting the appropriate model, incorporating uncertainty, variability, and expert opinion, and interpreting results for decision making. This new approach is illustrated by a probabilistic analysis of arsenic leaching from Portland cement concrete and asphalt concrete materials that were constructed using virgin and secondary products.


Arsenic Asphalt Concrete Recycle Material Latin Hypercube Sampling Reclaim Asphalt Pavement 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work was funded through a cooperative agreement (DTFH61-98-X-00095) between FHWA and the University of New Hampshire. The comments of anonymous reviewers were valuable in helping to focus and improve this paper.


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Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  • Defne S. Apul
    • 1
  • Kevin H. Gardner
    • 2
  • T. Taylor Eighmy
    • 2
  1. 1.Environmental Research Group, Department of Civil Engineering, 330 Environmental Technology BuildingUniversity of New HampshireDurhamUSA
  2. 2.Recycled Materials Resource Center, Department of Civil Engineering, 336 Environmental Technology BuildingUniversity of New HampshireDurhamUSA

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