Identification of Alternative Coarse and Fine Aggregates and Specifications for Evaluation

The main objectives of this research are as follows: 1) Provide an extensive critical review of the literature pertaining to alternative aggregates that have been used in concrete and the resultant quality of the concrete. Any additional aggregate types that could possibly be used should be identified for future evaluation. 2) Interview senior management from aggregate suppliers and integrate their suggestions into the testing program. 3) Determine if there are any coarse aggregates from approved sources that do not meet the grading requirements given in ASTM C33 (including limestone screenings). These become usable when combining aggregate gradations since the total aggregate gradation is what is important. Also, any distributions of non-reactive fillers could be used if they improve the packing density and enable the reduction of paste content. 4) Obtain supplies of all the available alternative aggregates and determine the mineralogy, strength, durability, and reactivity, particularly the alkali silica reaction potential. 5) Identify and/or develop performance-related testing and specifications without affecting currently approved sources.

Language

• English

Project

• Status: Active
• Funding: $239,844.00
• Contract Numbers:

  BED31 977-38

• Sponsor Organizations:

  Florida Department of Transportation

  Research Center
  605 Suwannee Street MS-30
  Tallahassee, FL  United States  32399-0450
• Managing Organizations:

  Florida Department of Transportation

  Research Center
  605 Suwannee Street MS-30
  Tallahassee, FL  United States  32399-0450
• Project Managers:

  Shoucair, John

• Performing Organizations:

  University of Florida, Gainesville

  219 Grinter Hall
  Gainesville, FL  United States  32611
• Principal Investigators:

  Tia, Mang

• Start Date: 20250501
• Expected Completion Date: 20270531
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Aggregate gradation; Coarse aggregates; Fine aggregates; Literature reviews; Performance tests; Specifications; Test procedures
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01954540
• Record Type: Research project
• Source Agency: Florida Department of Transportation
• Contract Numbers: BED31 977-38
• Files: RIP, STATEDOT
• Created Date: May 8 2025 11:15AM