TAG Meeting #1: May, 17, 2005
Developing Re-Use Applications and Improving the Economic Benefits of Florida’s Waste Materials
Florida Institute of TechnologyCivil Engineering Department
PI: Dr. Paul CosentinoAssociate PI: Dr. Howell Heck
Graduate Student: Carl SandinUndergraduate: Lennon Shade
Technical Awareness Group (TAG) Members
• Current members:– David Horhota FDOT-SMO
– John Shoucair FDOT-SMO
– David Westcott CEMEX Corp.
– Chris Brunais Goodson Paving, Inc.
– Suzanne Boroff FDEP
– Jim Langenbach GeoSyntec Consultants
Objectives
The objectives of this 12-month project are:
• identify environmentally safe waste materials; including recycled asphalt pavement (RAP) and concrete rubble
• mix with common fill to improve strength and stiffness
• evaluate economic impacts and benefits to the state
• develop construction specifications
First Quarter Accomplishments
• Website prepared• Report posted on website and submitted April 1st to
FCSHWM
• Site Visit to Goodson Paving to collect concrete samples
• Survey prepared for RAP and Concrete Rubble producers
Web Site• The web site is available to view:
– http://www.civil.fit.edu/cosentino_project.html
• Currently contains:– Project Description– Proposal– Proposal Presentation– 1st Quarterly Report– TAG Presentation
• Continuously Update as Work Progresses
Samples Obtained
• RAP Samples from APAC Melbourne Plant– Good Material in Nonstructural Areas– Subject to Creep under Constant Stress– Mixes Show Improvement but not eliminated
• Concrete Rubble Samples from Goodson Paving Melbourne Plant– Visually a Coarse Granular Material– Several Stockpiles available
Critical Tasks:
1. Sampling Waste Materials
2. Survey Waste Material Generators
3. Begin Testing & Mixing Program
4. Initialize Specifications
Second Quarter Tasks
1. Sampling Waste Materials
• Material sources:– Recycled Asphalt Pavement (RAP)
– Recycled Concrete Aggregate (RCA), concrete rubble
• Improvements to Recycled Materials:– Add % of AASHTO A-3 clean sand
• Improvements to Marginal Soils by Adding RAP or RCA– Sand-clay base
– Muck
2. Survey Waste Generators• To: FDOT District Engineers, then
contractors and processing facilities• Objective: To estimate variability of:
1. Production Type2. Quantities3. Engineering Behavior4. Economics
• Survey Link: • http://my.fit.edu/~cosentin/rap_rca_survey.php\
• Discussion and Comments
3. Testing & Mixing Program
• Fundamental Geotechnical Testing– Grain Size Distribution
– Moisture-Density
– LBR
• Mixes:– RAP and RCA with A-3 sand– RAP and RCA with fill soil or sand-clay base
4. Initialize Specifications
• States using RAP and/or concrete rubble:» Texas
» Virginia
» Michigan
» Minnesota
» California
Next TAG Meeting
• Tuesday July 12th ?
• Time, 2pm?
Top Related