Use of Carbonate Aggregates in Pavement Preservation Treatments

The rougher surfaces provided through pavement preservation treatments along with the observed performance in the Bristol district underscores that local carbonate aggregate sources, when properly evaluated, can meet safety performance requirements. Furthermore, their use may offer notable benefits, including reduced transportation costs, strengthened local economies, and a lower environmental footprint due to decreased fuel consumption and emissions. The purpose of this project is to generate data-driven insights that may inform more flexible and performance-based criteria for the safe and effective use of carbonate aggregates in Virginia’s roadways, particularly in pavement preservation treatments. This purpose will be achieved through (1) further evaluating the performance of existing microsurfacing sites in the Bristol district to determine whether the conclusions drawn from short-term performance monitoring remain consistent over a longer observation period, and (2) implementing additional field trials with carbonate aggregates in pavement preservation treatments across multiple districts, including Salem, Lynchburg, and Staunton, on routes with traffic levels exceeding 750 average daily traffic (ADT).

Language

• English

Project

• Status: Active
• Funding: $99,252.00
• Contract Numbers:

  127240

• Sponsor Organizations:

  Virginia Transportation Research Council

  530 Edgemont Road
  Charlottesville, VA  United States  22903
• Performing Organizations:

  Virginia Transportation Research Council

  530 Edgemont Road
  Charlottesville, VA  United States  22903
• Principal Investigators:

  Boz, Ilker

• Start Date: 20250415
• Expected Completion Date: 20270228
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Carbonates; Pavement maintenance; Pavement performance; Preservation
• Geographic Terms: Virginia
• Subject Areas: Highways; Maintenance and Preservation; Materials; Pavements;

Filing Info

• Accession Number: 01951365
• Record Type: Research project
• Source Agency: Virginia Department of Transportation
• Contract Numbers: 127240
• Files: RIP, STATEDOT
• Created Date: Apr 11 2025 8:40AM