Development of Guidelines for High-Volume Recycled Materials for Sustainable Concrete Pavement

Concrete production uses a considerable amount of non-renewable natural resources and generates a significant amount of greenhouse gases. To obtain a more sustainable solution requires examining the two main components of concrete – aggregates and cement. Recycling concrete as aggregate for new concrete reduces construction waste, diverts material from already over-burdened landfills, and lowers demand for virgin aggregate. Using supplementary cementitious materials – such as fly ash, blast furnace slag, and glass powder – also diverts material from landfills and reduces the carbon footprint of concrete. However, no studies have examined impact on service life or performance when combining high volumes of recycled concrete aggregate and supplementary cementitious materials in concrete. The main objective of this study is to produce guidance for concrete in conventional pavement construction, incorporating at least 50% recycled materials (both recycled concrete aggregate and supplementary cementitious materials) without compromising performance or service life. The study will characterize virgin and recycled aggregate sources; optimize the aggregate skeleton, binder composition, and concrete mixtures; evaluate fresh and hardened mechanical properties; evaluate durability; construct, instrument, monitor, and load test full-scale pavement test sections; perform forensic studies of existing concrete pavements in Oklahoma; and develop guidelines for material selection and mixture optimization.

  • Supplemental Notes:
    • Contract to a Performing Organization has yet to be awarded.

Language

  • English

Project

  • Status: Proposed
  • Sponsor Organizations:

    Oklahoma Department of Transportation

    200 NE 21st Street
    Oklahoma City, OK  United States  73105

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590
  • Start Date: 20160101
  • Expected Completion Date: 0
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01590812
  • Record Type: Research project
  • Source Agency: University of Oklahoma, Norman
  • Files: UTC, RiP
  • Created Date: Feb 22 2016 1:07PM