TAG Meeting #1: May, 17, 2005 Developing Re-Use Applications and Improving the Economic Benefits of Florida’s Waste Materials Florida Institute of Technology Civil Engineering Department PI:Dr. Paul Cosentino Associate PI:Dr. Howell Heck Graduate Student:Carl Sandin Undergraduate: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 LangenbachGeoSyntec 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 1 st 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: – Currently contains: –Project Description –Proposal –Proposal Presentation –1 st 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 Type 2.Quantities 3.Engineering Behavior 4.Economics Survey Link: 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?