Performance of preventive maintenance treatments for flexible pavements in Texas.

Details

• Creators:
  Serigos, Pedro A. ; Smit, Andre de Fortier ; Prozzi, Jorge Alberto
• Corporate Creators:
  University of Texas at Austin. Center for Transportation Research
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Implementation Office
• Subject/TRT Terms:
  • Pavement maintenance
  • Highway maintenance
  • Statistical analysis
  • Flexible pavements
  • Chip seals
  • Surfacing
  • Overlays (Pavements)
  • Preventive maintenance
  • chip seal
  • thin overlay
  More +
• Publication/ Report Number:
  FHWA/TX-16/0-6878-2 ; 0-6878-2
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Texas
• Corporate Publisher:
  University of Texas at Austin. Center for Transportation Research
• Abstract:
  This report documents the work performed in the first year of the Texas Department of TxDOT Project 0-6878. ; The main objective of this project is to quantify the effectiveness of various popular preventive maintenance ; (PM) treatments under varying conditions toward optimizing their design and application. The work conducted in ; the first year is divided into two main parts. ; The first part consists of an evaluation of the effectiveness of different PM treatments through a model-based ; approach using pavement sections included in the Specific Pavement Study (SPS)-3 experiment of the Federal ; Highway Administration (FHWA) Long-Term Pavement Performance (LTPP) program. For this analysis, the ; effectiveness of the different PM treatments was assessed and ranked using statistical analysis and modelling of ; the performance response of a set of treated and non-treated (control) pavement sections. The proposed model ; aimed to explain the relationship between the loss in serviceability rate as a function of treatment type along with ; pavement, traffic, climate conditions, and their interaction with the PM treatment effectiveness. ; The second part estimates the effective life of PM treatments of in-service flexible pavements located throughout ; Texas through the statistical analysis and modelling of TxDOT databases that include more than twenty years of ; relevant design, construction, and performance data of maintenance and rehabilitation (M&R) works. The ; preliminary analysis focused on the three most popular PM treatment types: chip seals, microsurfacing, and thin ; overlays. The effective life of these treatments is estimated using survival analysis techniques as a function of the ; underlying pavement characteristics and external influences with regard to traffic and climate.
  More +
• Format:
  PDF
• Funding:
  0-6878
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/32140/dot_32140_DS1.pdf
• File Type:
  [PDF - 821.13 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:64e758ef54352f20c4bc23415986e762184bba85e4a77aeafb9b61344090ae86