SPR-5027: Evaluation of Recycled Concrete Pavement (RCP) for Base and Subbase Layers

This research will evaluate the feasibility, performance, and cost-effectiveness of incorporating recycled concrete pavement (RCP) into pavement base and subbase layers and subgrade replacement. The study will focus on mechanical, hydraulic, and durability characteristics of RCP gradations, fines control strategies, and field validation, aiming to provide practical implementation guidelines for the Indiana Department of Transportation (INDOT) pavement design framework. Further, the study will explore the viability of blending RCP with local fine-grained soils (such as American Association of State Highway and Transportation Officials (AASHTO) A-7-6 as a strategy to mitigate calcium leaching and reduce the risk of tufa formation, while maintain adequate drainage performance.

Language

• English

Project

• Status: Active
• Funding: $232,202.00
• Contract Numbers:

  SPR-5027

• Sponsor Organizations:

  Purdue University/Indiana Department of Transportation JHRP

  Purdue University
  1284 Civil Engineering Building, Room 4154
  West Lafayette, IN  United States  47907-1284
• Principal Investigators:

  Tutumluer, Erol

• Start Date: 20260701
• Expected Completion Date: 20280630
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Concrete; Fine grained soils; Pavement base course; Pavement design; Recycled materials; Subbase materials; Subgrade materials
• Identifier Terms: Indiana Department of Transportation
• Geographic Terms: Indiana
• Subject Areas: Design; Highways; Materials; Pavements;

Filing Info

• Accession Number: 01988830
• Record Type: Research project
• Source Agency: Indiana Department of Transportation
• Contract Numbers: SPR-5027
• Files: RIP, STATEDOT
• Created Date: May 6 2026 3:26PM