The use of micro-surfacing for pavement preservation.

Details

• Creators:
  Marquis, Brian
• Corporate Creators:
  Maine. Dept. of Transportation. Transportation Research Division
• Subject/TRT Terms:
  • Pavement maintenance
  • Preventive maintenance
  • Rehabilitation (Maintenance)
  • Service life
  • Superpave
  • Preservation
• Publication/ Report Number:
  42769
• Resource Type:
  Tech Report
• Geographical Coverage:
  Maine
• Corporate Publisher:
  Maine. Dept. of Transportation
• Abstract:
  The Maine Department of Transportation (MDOT) is responsible for maintaining approximately 14,000 ; kilometers of public highways. Maintenance of these highways consists of rehabilitation or reconstruction ; when the road has deteriorated to an unacceptable level. With economic fluctuations and ever increasing ; traffic levels, this policy does not effectively address the needs of the highway system when maintenance ; is necessary and creates a backlog of deficient highways. ; To reduce this trend, many states have adopted the policy of Pavement Preservation. This policy consists ; of applying preventative maintenance to the roadway before it has deteriorated to an undesirable level, ; maintaining the structural integrity and extending the service life of the pavement. Length of time ; between costly rehabilitation is increased, reducing the cost of maintaining the highway system. Several ; states have reported that they were able to improve the overall condition of their highway system after ; trying this approach and that every dollar spent using preventative maintenance could save up to six ; dollars in future spending. ; Maine has two types of roads: “A” roads, which are built to state standards and “B” roads, which are not. ; Pavement Preventive Maintenance (PPM) can be used effectively on “A” roads to extend service life. ; Examples of PPM treatments include Crack Sealing, Thin Overlays, and Micro-Surfacing. Crack Sealing ; prevents water and debris from entering cracks in the pavement by sealing them with a rubberized ; material. Hot Maintenance Mulch is a hot mix asphalt pavement with little or no crushed aggregate and is ; typically used on “B” roads. Thin Overlays are dense - open graded Superpave mixes including recycled ; mixes that are typically used on “A” roads. Micro-Surfacing is a thin overlay of a mixture of polymer-modified asphalt emulsion, mineral aggregate, mineral filler, and water. ; This report will examine the application of Micro-Surfacing to extend the service life of two projects in ; Aroostook County.
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• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28456/dot_28456_DS1.pdf
• File Type:
  [PDF - 637.35 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:b4960a7b2ccfd85c6e9cfaf0f00318505bcd41120ad2b749498012face9dd402