Full depth reclamation with cement, second and third interim, December, 2008.
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2008-12-01
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Abstract:Due to the rising cost of virgin aggregate and asphalt products the Maine Department of Transportation
(MaineDOT) utilizes a number of reconstruction and rehabilitation processes to cost effectively maintain
Maine’s highway system. One rehabilitation process in particular is full-depth reclamation (FDR) with
cement. This process rebuilds deteriorated roadways by recycling the existing Hot Mix Asphalt (HMA).
The old HMA and a portion of base material are pulverized in-place, mixed with cement and water, then
shaped and compacted to produce a strong and durable stabilized base material that is sealed with a HMA
surface. With the added strength of the stabilized base, thickness of the HMA surface can be reduced
resulting in additional cost savings. By recycling the existing HMA materials, construction costs are
reduced by 25% to 50% as compared to conventional construction methods
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