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Cement is applied to the pulverized road in the form of a slurry for a thorough application and dust control. FDR Makes Economic and Environmental Sense for City of Dallas S ince 2004, the City of Dallas has been committed to a sustainability policy to make it a “greener,” more environmentally friendly city. Among the many environmental issues it faced was waste management and in particular, the disposal of materials resulting from road repairs. In keeping with the City of Dallas Environmental Policy, the Department of Street Services has established innovative programs to reuse, reclaim, and recycle the materials used in its street rehabilitation, restoration, and partial reconstruction. One of the most cost-effective, durable and sustainable methods the Department of Street Services has embraced is the use of full-depth reclamation (FDR) with cement for its street restoration program. “This process rebuilds worn-out asphalt pavements by recycling the existing roadway. The old asphalt and base materials are pulverized, mixed with cement and water, and compacted to produce a strong, durable base for either an asphalt or concrete surface,” said Dan Richwine of TXI, a leading supplier of building materials such as cement and concrete. “By using the old asphalt and base material for the new road, there is no need to haul in aggregate or haul out old mate- rial for disposal, reducing the amount of fuel consumed and reducing fuel emissions in the area.” Dallas commuters and residents also benefit FDR. “We were able to get our streets back to the motoring public faster than we've done in the past,” stated Gilbert Aguilar, assistant director of the City of Dallas Department of Street Services. Street rehabilitation involves the repair of failed sections of asphalt streets followed by an under seal and 2” asphalt overlay. Asphalt and base material removed from failed sections of these streets are taken to the landfill. However, 100% of the material used for 8 Special advertising supplement to the McGraw-Hill Construction Regional Publications
Full-Depth Reclamation
Table of Contents for the Digital Edition of Full-Depth Reclamation
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