Granular Carbon-Enhanced High Early Strength Concrete for Bridge Decks

This project, conducted in collaboration with the City of Nampa, will evaluate the use of granular carbon as a concrete additive to improve early strength gain in bridge deck concrete while maintaining durability and workability. The study will examine how different carbon dosages affect concrete strength, workability, durability, permeability, shrinkage, thermal properties, and overall performance. Laboratory testing will be used to identify mix designs that balance strength, durability, constructability, and cost effectiveness. The project will also evaluate the potential for granular carbon to improve heat retention and reduce snow and ice accumulation on bridge decks.

Language

• English

Project

• Status: Programmed
• Funding: $80,000.00
• Contract Numbers:

  RP 340

• Sponsor Organizations:

  Idaho Department of Transportation

  P.O. Box 7129
  3311 W. State Street
  Boise, ID  United States  83707-1129
• Project Managers:

  Dietz, Dana

• Start Date: 20270601
• Expected Completion Date: 0
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Bridge decks; Carbon; Durability; Granular materials; High early strength cement; High strength concrete; Permeability; Thermal properties; Workability
• Geographic Terms: Nampa (Idaho)
• Subject Areas: Bridges and other structures; Highways; Materials;

Filing Info

• Accession Number: 02003044
• Record Type: Research project
• Source Agency: Idaho Transportation Department
• Contract Numbers: RP 340
• Files: RIP, STATEDOT
• Created Date: Sep 21 2026 3:20PM