ARRA has recently compiled a list of recent pavement preservation research needs and active projects related to asphalt recycling and other forms of preservation treatment. The research "catalog" has been broken down by treatment type / topic area, or may be downloaded as a single document below (very large file!). Thanks to Russ Thielke of NYSDOT for compiling this information and to Todd Thomas of SemMaterials, Inc. for making these research needs statements available.

Chip Seals

Cold In-Place Recycling

Concrete Joint Repair

Crack and Joint Sealing

Heater Scarification

Hot In-Place Recycling

Joint Filling and/or Sealing

Joint Filling and Sealing Detailed Project Information

Micro-Surfacing Mix Design Procedures

Misc. Preservation / Preventive Maintenance

Slurry Seals

Thin Hot Mix Overlays

Complete Research Needs List
(all of the above, large file)