Improving and Developing Pavement Design Inputs and Performance Functions for Cold Recycled Pavement Layers in Minnesota

Details

• Creators:
  Dave, Eshan V. ; Sias, Jo E. ; Al-Ihekwaba, Ebubechukwu
• Corporate Creators:
  University of New Hampshire. Department of Civil and Environmental Engineering ; Local Road Research Board
• Corporate Contributors:
  Minnesota. Department of Transportation. Research Services & Library
• Subject/TRT Terms:
  Cold In-place Recycling Emulsions Full-depth Reclamation Mechanical Properties Mechanistic-empirical Pavement Design Pavement Performance Performance Based Specifications Predictive Models Recycled Materials Rutting
• Publication/ Report Number:
  MN 2026-12
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Minnesota
• Edition:
  Final Report
• Corporate Publisher:
  Minnesota. Department of Transportation. Research Services & Library
• Abstract:
  Existing specifications in Minnesota and many other states fail to adequately characterize the properties of cold recycled pavement materials necessary for pavement design procedures. Current assumptions for these materials are not entirely accurate as these materials often possess complex, non-linear, stress and rate dependent behavior. This can lead to under/overdesigned pavement structures that are not economically and environmentally viable. Adequately characterizing the recycled material layer will ensure that the appropriate thickness of wear course is determined through pavement design with no negative impact on structural capacity or serviceability. This research, through a series of laboratory and field investigations, develops a user-friendly, Excel-based material property prediction tool to estimate necessary material properties to be used in quality assurance evaluation and/or performance modelling efforts within mechanistic-empirical design of cold recycled pavement structures. In addition, a rutting performance function and early life rutting failure threshold is developed to assist in minimizing the risk of premature rutting failure of the recycled layer. From these, longer pavement lives can be achieved, leading to a decrease in the frequency of repair and maintenance as well as the costs associated with them.
• Format:
  PDF
• Funding:
  (c)1036343
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:ac9d39744a80639bfc06c93ebc98f91fded92d1ebc483010166d85cb7165b783ab57a906b38295eb26f790c96330c69717779ec8a88c17d911ad4e5ed8032f55
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/92355/dot_92355_DS1.pdf
• File Type:
  [PDF - 9.14 MB ]