Years to first rehabilitation of superpave hot mix asphalt.

Details

• Creators:
  Goldbaum, Jay E. ; Perkins, Melody A.
• Corporate Creators:
  Colorado. Dept. of Transportation. Materials and Geotechnical Branch
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  Deformation Hot Mix Paving Mixtures Life Cycle Analysis Mix Design Pavement Cracking Pavement Performance Rehabilitation (Maintenance) Service Life Smoothness Superpave
• Publication/ Report Number:
  CDOT-2014-10
• Resource Type:
  Tech Report
• Geographical Coverage:
  Colorado
• Corporate Publisher:
  Colorado. Dept. of Transportation. Applied Research and Innovation Branch
• Abstract:
  The Colorado Department of Transportation (CDOT) spends more than 30 percent of its annual construction and
  
  maintenance budget on pavements, so pavements need to be properly designed using an analytical process with
  
  accurate design inputs. A pavement design needs to be performed during the early phase of project development to
  
  estimate and establish the project cost. The performance life of the initial pavement design and associated
  
  rehabilitations greatly impact the life cycle cost analysis (LCCA) used to determine the most cost-effective final
  
  pavement design. Currently, due to lack of actual data, an assumption of the expected life of an asphalt pavement is
  
  often being made. Thus, a precise initial pavement life span is essential for developing a reliable forecasting model
  
  and an accurate LCCA.
  
  This study evaluated the performance of four roadway functional classes utilized by CDOT: interstates, principal
  
  arterials, minor arterials, and major collectors. Performance was evaluated with respect to smoothness, permanent
  
  deformation, fatigue cracking, transverse cracking, and longitudinal cracking.
  
  Implementation
  
  The purpose of this study was to quantify the initial design life of a roadway’s pavement prior to rehabilitation and
  
  provide specific performance information through the analysis of pavement management data and historical
  
  experience. The analyzed data may be used to estimate the initial life of a pavement which can be incorporated into
  
  the LCCA within CDOT’s M-E Pavement Design Guide. It will also provide guidance to CDOT and subcontractors
  
  in determining the cost-effectiveness of different pavement designs, construction and maintenance costs.
  
  
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:6c226db7d5d5144d1f489a5e43861d6c0137c7d46bb3e69bd3e72fdc9bec4c3a
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27732/dot_27732_DS1.pdf
• File Type:
  [PDF - 12.72 MB ]