Generic Experimental Design for Product/Strategy Evaluation - Crumb Rubber Modified Materials

This report describes the framework for a generic process to evaluate new products and/or strategies for possible use within the California Department of Transportation (Caltrans). It presents a generic experimental design process that is applicable to all pavement types as well as the component materials of pavements. Included in the framework are different types of studies that may be used in the evaluation process, such as laboratory, accelerated pavement testing (APT) and field pilot studies. The report also identifies other factors that need to be considered in the evaluation of any new product or strategy: economic viability and environmental impact. The focus of the study was to examine specific ideas or hypotheses that may broaden and expand the use of crumb rubber modifier (CRM) in pavement applications. These included: 1) construction/rehabilitation and maintenance applications, including new construction, thick overlays, open graded-high binder mixes, and recycling; 2) materials studies, including type 1 vs. type 2 binders and binder testing; 3) structural design studies, including gravel factor for RAC-G and MB mixes, and modification of the deflection based overlay design procedure.

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  • Corporate Authors:

    California Department of Transportation

    Materials Engineering and Testing Services
    5900 Folsom Blvd
    Sacramento, CA  United States  95819

    California Department of Transportation

    Office of Flexible Pavement Materials
    5900 Folsom Boulevard
    Sacramento, CA  United States  95819
  • Publication Date: 2005-2-8


  • English

Media Info

  • Media Type: Print
  • Features: Appendices; Figures; References; Tables;
  • Pagination: 25p

Subject/Index Terms

Filing Info

  • Accession Number: 01044819
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Created Date: Feb 8 2007 5:42PM