Recycled material availability in Maryland – a synthesis study.
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2016-10-01
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Abstract:There is growing interest in using recycled materials in highway construction nationwide. The research study focused on four types of recycled materials: recycled concrete aggregate (RCA), reclaimed asphalt pavement (RAP), dredged materials, and foundry sand. The project team examined the current practices on the use of these recycled materials and identified potential concerns related to material performance, environmental considerations, design and field performance. A survey to State Departments of Transportation was conducted through the AASHTO Subcommittee on Materials and pertinent Maryland specifications for highway applications were examined to identify areas where the revised specifications need to be developed for a wider use of these recycled materials. Implementation actions were recommended.
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