Development of Procedures and Technologies for Chip Seal Construction Quality Control in Oregon

In SPR777 (2016), a chip seal design method was developed for ODOT. Although the developed design method is expected to improve the long-term performance of chip seals in Oregon, ensuring the proper construction of the chip seals by following the new design method is crucial to be able to achieve major improvements in long-term performance. For this reason, technologies and field and laboratory test methods for chip seal construction quality control need to be developed and implemented. To address this need, this research would have six major objectives: i) determine the major factors that control chip seal performance; ii) develop a process for percentage aggregate embedment measurement; iii) develop a field and laboratory test to measure aggregate-binder adhesion and binder stiffness and tackiness; iv) using the developed experiments for adhesion and dynamic shear rheometer (DSR) testing, determine the effectiveness of several different binder and aggregate types [including pre-screened recycled asphalt pavement (RAP)] for chip sealing and develop a comprehensive list of ideal chip seal materials; v) using the wireless OreTackRate system developed in SPR818 (2020), develop a field quality control process for emulsion/binder and aggregate application rate and uniformity; and vi) implement all tests and methods for chip seal construction quality control. Methods to increase the longevity of chip seals are expected to provide significant performance and cost advantages for ODOT. Technologies, procedures, and the list of highest quality materials for chip sealing that will be developed in this research study are expected to increase the quality of chip seal construction, improve long-term chip seal performance, avoid premature failures, and provide new tools for ODOT and contractors to monitor and improve the quality of current materials and methods used for chip seal construction.

Language

• English

Project

• Status: Active
• Funding: $245000
• Contract Numbers:

  SPR 858

• Sponsor Organizations:

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Managing Organizations:

  Oregon Department of Transportation

  555 13th Street NE
  Salem, OR  United States  97301
• Project Managers:

  Lazarus, Jon

• Performing Organizations:

  Oregon State University, Corvallis

  101 Kearney Hall
  Corvallis, OR  United States  97331
• Principal Investigators:

  Coleri, Erdem

• Start Date: 20211231
• Expected Completion Date: 20240331
• Actual Completion Date: 0
• USDOT Program: Transportation, Planning, Research, and Development

Subject/Index Terms

• TRT Terms: Chip seals; Quality control
• Identifier Terms: Oregon Department of Transportation
• Subject Areas: Highways; Maintenance and Preservation; Pavements;

Filing Info

• Accession Number: 01829895
• Record Type: Research project
• Source Agency: Oregon Department of Transportation
• Contract Numbers: SPR 858
• Files: RIP, STATEDOT
• Created Date: Dec 13 2021 6:41PM