D-cracking field performance of portland cement concrete pavements containing limestone in Kansas : phase 1 report : technical summary.
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D-cracking field performance of portland cement concrete pavements containing limestone in Kansas : phase 1 report : technical summary.

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  • English

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      Technical summary.
    • NTL Classification:
      NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance ; NTL-HIGHWAY/ROAD TRANSPORTATION-Materials ;
    • Abstract:
      Introduction: Premature deterioration of concrete pavement due to D-cracking has been a problem in Kansas since the 1930s. Limestone is the major source of coarse aggregate in eastern Kansas where the majority of the concrete pavements are constructed. It is generally recognized that freeze-thaw deterioration of non durable aggregates is the cause of D-cracking. The KDOT Standard Specification Section 1102 Aggregates for Concrete requires the prequalification of limestone coarse aggregate materials by freeze-thaw testing with the intent of preventing D-cracking before 20 years.

      Project Objective: This study investigates the D-cracking field performance of Portland cement concrete pavements (PCCP) containing limestone in Kansas built under the current specifications, with the ultimate goal of increasing concrete pavement life in Kansas. Phase 1 of this study focuses on evaluating the success of the current aggregate durability specifications (implemented between 1981 and 1987) and whether KDOT pavements constructed under the specifications are achieving the intended 20-year design life. This was completed by conducting field-performance evaluations, determining the rate of success, and comparing the results with materials, design, and environmental parameters.

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