6506-22 - Continuous Plant Laydown Laydown Laydown and...

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Cold-Mix Asphalt Recycling (Central Plant) Construction Methods and Equipment (From “Pavement Recycling Guidelines for State & Local Government” by NCAT) Cold Mix Recycling ± RAP and Reclaimed Aggregate (if any) Mixed with New Asphalt Binder and New Aggregate (if Needed) to Produce Cold Recycled Mix Without Application of Heat ± Recycled Mix is Produced at a Central Plant Rather than In-Place. Steps Involved ± Removal of Existing Pavement ± Crushing and Stockpiling ± Mixing ± Laydown, Aeration and Compaction Removal of Existing Pavement ± Rip Existing Pavement and Crush and Size at Central Plant ± Rip, Break and Pulverize on Site ± Cold Milling Ripping Process Milling with Truck Being Loaded with RAP
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RAP Stockpile Mixing ± Batch, Drum, or Continuous (Stabilization) Plants Used ± Control Feed Rate of Cold Bins ± Plants should have capability to Add Water and Asphalt Binder ± Continuous Plants Most Common Continuous Plant Truck Being Loaded with Mix From
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Unformatted text preview: Continuous Plant Laydown Laydown Laydown and Compaction Aeration ± Required to Reduce Water and Volatile Content ± Required to Support the Compaction Equipment ± Use Multiple Lifts if Curing is a Problem Compaction ± Steel Wheel, Pneumatic-Tired or Vibratory Roller ± Use Heavy Weight, Pneumatic-Tired Roller for Breakdown ± Achieve Optimum Density Steel Wheel and Pneumatic-Tired Roller Compacted Cold Recycled Base Overlay ± HMA ± Double Surface Treatment ± Do not Place if Excessive Moisture in Cold Recycled Base ± Apply Fog Seal, if Necessary, before Opened to Traffic Prior to Overlay Project with HMA Overlay Summary ± Cold Mix Recycling can Rectify Reflection Cracking, Frictional Resistance, and Improve Ride Quality ± Procedure Involves Removal of Pavement Material, Crushing, Mixing and Laydown ± Aeration may be Required Before Compaction ± Wearing Surface Recommended...
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This note was uploaded on 05/26/2011 for the course CGN 6505 taught by Professor Mang during the Spring '11 term at University of Florida.

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6506-22 - Continuous Plant Laydown Laydown Laydown and...

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