CP Tech Center

National Concrete Pavement Technology Center

CP Tech Center|Concrete Recycling

Concrete Recycling

Demand for quality aggregates has increased as virgin resources have decreased—so recycled concrete aggregate (RCA) increasingly offers significant savings. RCA also supports environmentally sustainable construction, lessening not only needless use of limited landfill space but also haul distances— which, in turn, cuts fuel consumption associated with aggregate acquisition and concrete slab disposal. Ultimately, concrete recycling saves energy and reduces greenhouse gas emissions.

Though the following CP-Tech-Center-curated collection of resources is not comprehensive, it does cover both best practices and the state of the research in relation to concrete pavement recycling.

Webinars

 

  1. Recycled Concrete Aggregates (RCA): The Basics (Cavalline & Fonte–2021)—Slides / Q&A
  2. Introduction to Concrete Pavement Recycling (Snyder & Cavalline–Slides–2016)
  3. Environmental Considerations in Concrete Pavement Recycling (Cavalline–Slides–2017)
  4. Construction Considerations in Concrete Pavement Recycling (Fick–Slides–2017)
  5. Case Studies in Concrete Pavement Recycling (Snyder–Slides—2017)
Guides/Manuals
Recycling Concrete Pavement Materials: A Practitioner's Reference Guide (2018)
Tech Briefs
Concrete Pavement Recycling Series: Concrete Pavement Recycling and the Use of Recycled Concrete Aggregate (RCA) in Concrete Paving Mixtures (PDF)
Concrete Pavement Recycling Series: Protecting Water Quality through Planning and Design Considerations (PDF)
Concrete Pavement Recycling Series: Quantifying the Sustainability Benefits of Concrete Pavement Recycling (PDF)
Concrete Pavement Recycling Series: Using Recycled Concrete Aggregate (RCA) in Unbound Aggregate Shoulders (PDF)
Concrete Pavement Recycling Series: Protecting the Environment during Construction (PDF)
CP Road Map: Concrete Pavement Recycling—Project Selection and Scoping (PDF)
CP Road Map: Using Recycled Concrete Aggregate in Pavement Base Products (PDF)
Current Utilization and Guidance

Recycled Concrete Aggregate Usage in the US (2016 Benchmarking Survey of state highway agencies and paving contractors and summary of technology transfer guidance results and conclusions) (PDF)

Technical Resources

ACPA
EB043P Recycling Concrete Pavements

Construction and Demolition Recycling Association
Recycled Concrete Aggregate, A Sustainable Choice for Unbound Base (For complete paper, contact info@cdrecycling.org)

National Concrete Pavement Technology Center
A Technology Deployment Plan for the Use of Recycled Concrete Aggregates in Concrete Paving Mixtures (2011 Report) (PDF)
Supplementary Cementitious Materials and Blended Cements to Improve Sustainability of Concrete Pavements (PDF)

FHWA
Pavement Life-Cycle Assessment Framework (FHWA-HIF-16-014)
Technical Advisory T5040.37 Use of Recycled Concrete Pavement as Aggregate in Hydraulic-Cement Concrete Pavement
Towards Sustainable Pavement Systems: A Reference Document (FHWA HIF-15-002)

RMC Research & Education Foundation
Crushed Returned Concrete as Aggregates for New Concrete (Project 05-13)

For more information

For more information about CP Tech Center work related to concrete recycling, contact:

Peter Taylor

Director, CP Tech Center

515-294-9333
ptaylor@iastate.edu

Additional Training by Format

The CP Tech Center provides concrete pavement training promoting best practices (including with new tools/methodologies) as follows:

Request additional training

Want to schedule CP Tech Center training at your event or need additional training materials developed? Please contact:

Sharon Prochnow

Program Coordinator, cp tECH cENTER

515-294-3781
prochnow@iastate.edu

Improve training in your state

Since 2006, informal quarterly “Lunch & Learn” training has kept Iowa’s county and municipal engineers on top of best practices and new methods/tools in concrete pavements in now ten locations across Iowa every fall, winter, and spring. For help setting up similar training for your state, contact:

Peter Taylor

Director, CP Tech Center

515-294-9333
ptaylor@iastate.edu

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