Fix it first : utilizing the seismic property analyzer and MMLS to develop guidelines for the use of polymer modified thin lift HMA vs. surface treatments.

Details

• Creators:
  Mogawer, Walaa S. ; Austerman, Alexander J. ; Daniel, Jo Sias ; Engstrom, Bryan
• Corporate Creators:
  University of Massachusetts Dartmouth. Department of Civil and Environmental Engineering
• Subject/TRT Terms:
  Asphalt Mixtures Benefit Cost Analysis Nondestructive Tests Overlays (Pavements) Pavements--Overlays--Testing Polymer Asphalt Polymer Asphalt--Cost Effectiveness Surface Treating
• Publication/ Report Number:
  NETCR91
• Resource Type:
  Tech Report
• Geographical Coverage:
  New England
• Edition:
  Final report.
• Corporate Publisher:
  New England University Transportation Center
• Abstract:
  The main objective of this study was to develop thin lift overlay mixtures with polymer modified asphalt for use in New England. As part of this
  
  research a comprehensive literature review and internet survey was conducted. Moreover, laboratory testing was conducted to develop thin lift Polymer
  
  Modified Asphalt (PMA) mixtures in an effort to evaluate their use for New England.
  
  It was attempted to use the Model Mobile Load Simulator (MMLS) to investigate the feasibility of using a non-destructive testing (Potable Seismic
  
  Property Analyzer) to evaluate the thin lift mixtures. However, after several attempts to compact the asphalt mixtures in the device, achieving target
  
  density was not attainable. Accordingly this thin lift mixture testing was replaced by dynamic modulus testing in the Asphalt Mixture Performance
  
  Tester and low temperature cracking using the Indirect Tensile Test (IDT).
  
  The survey conducted showed the method of selection for either a surface treatment or lift HMA overlay were decision trees, functional classification of
  
  the roadway, existing pavement condition, experience and treatment cost. Moreover, the majority of respondents did not have a methodology to select
  
  the appropriate time to apply a strategy. Based on the survey, transportation agencies utilized PMA to reduced cracking, reduce rutting, reduce thermal
  
  cracking, and extended pavement life. No disadvantages of using polymer modified asphalt were noted.
  
  Thin lift mixtures were developed with five modified binders and one conventional binder for comparison purposes. The laboratory data indicated that
  
  the low temperature performance grade of the binders were warmer than the low temperature cracking of the mixtures predicted using IDT
  
  measurements. This indicates that the use of the PMA did not increase the low temperature susceptibility of the mixtures tested. Therefore, PMA could
  
  be utilized for thin lift mixtures placed in the New England region.
  
  
• Format:
  PDF
• Collection(s):
  University Transportation Centers US Transportation Collection
• Main Document Checksum:
  urn:sha256:e7fca603294c46ac196035bde3aa5b47da6f211b3f2a56b5a11c959d67296cdd
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/25460/dot_25460_DS1.pdf
• File Type:
  [PDF - 914.86 KB ]