The Effect of Rubber Fills on the Performance of Infrastructure, Phase 1

This project investigates using large chips of scrap tires having various shapes and sizes as tire derived aggregate (TDA) in different infrastructure applications including subgrade fill and the core of embankment fills as well as backfill material for retaining walls and bridge abutments. The TDA possesses unique engineering properties of being durable, lightweight, allowing drainage, and having cohesive abilities. Due to its lightweight, using TDA backfill will reduce the lateral pressures on retaining walls and bridge abutments which can reduce the design forces and hence lighter structural elements can be used. The lightweight backfill will also reduce the settlement of underlying soils and increase the global stability of the structural elements which may allow using a spread footing rather than deep foundations leading to significant savings in the construction costs. The drainage capabilities of the TDA can eliminate the need for a clean granular backfill.

Language

• English

Project

• Status: Active
• Funding: $220,066
• Contract Numbers:

  TR202013

• Sponsor Organizations:

  Missouri Department of Transportation

  1617 Missouri Boulevard
  P.O. Box 270
  Jefferson City, MO  United States  65102
• Project Managers:

  Harper, Jennifer

• Performing Organizations:

  Missouri University of Science & Technology, Rolla

  Department of Engineering
  202 University Center
  Rolla, MO    65409
• Principal Investigators:

  ElGawady, Mohamed

• Start Date: 20191015
• Expected Completion Date: 20240930
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Backfilling; Bridge abutments; Embankments; Fills; Infrastructure; Performance; Retaining walls; Subgrade (Pavements); Subgrade materials; Tires; Waste products (Materials)
• Subject Areas: Bridges and other structures; Highways; Materials;

Filing Info

• Accession Number: 01733978
• Record Type: Research project
• Source Agency: Missouri Department of Transportation
• Contract Numbers: TR202013
• Files: RIP, STATEDOT
• Created Date: Mar 20 2020 2:32PM