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21 80 a Catalog of Airport Pavement Preservation Treatments pro- AC material PCC material Percentage of responses vided in Appendix B. 60 Some of the treatments listed in Tables 3 and 4 can be 40 applied, with only very small modifications, to both AC and PCC pavements; for example, microsurfacing, and controlled 20 shot blasting. Other treatments listed in the tables are just a variation of the same treatment using different materials. An 0 Very good Good Poor example for AC pavements would be the crack sealing of Performance rating such pavements with hot-poured sealant versus cold-applied sealant. An example for PCC pavements would be the shallow FIGURE 12 Performance of materials used for patch repair using PCC material versus using AC material or shallow patch repairs of PCC slabs. proprietary material. CATALOG OF AIRPORT PAVEMENT For survey purposes, treatments common to both pavement PRESERVATION TREATMENTS types, as well as treatments that differ only by the material used, were considered separately because the usage and per- There is a large amount of information available concern- formance of these treatments may differ. For the description in ing the technology of pavement preservation treatments. the Catalog the treatments used in the survey were combined For example, there are literally dozens and in some cases even into generic categories based primarily on the construction hundreds of reports on each of the 38 M&R treatments listed technology of the treatments. As a result, the 38 treatments in Tables 3 and 4. To present information in a concise and sys- listed in Tables 3 and 4 were combined into the 24 treatments tematic way, each of the 38 M&R treatments was described listed in Table 6 and are described in the Catalog of Airport using the same structure in less than three pages. The result is Pavement Preservation Treatments (Appendix B). TABLE 6 AIRPORT PAVEMENT PRESERVATION TREATMENTS INCLUDED IN THE CATALOG Both Pavement Types Asphalt Concrete Portland Cement Concrete Texturization using controlled Sealing and filling of cracks (with Joint and crack sealing (with shot blasting hot- or cold-applied sealants) bituminous, silicone, or Diamond grinding Small area patching (using hot mix, compression sealants) Microsurfacing cold mix, or proprietary material) Partial-depth repairs (using AC, Spray patching (manual chip seal or PCC, or proprietary materials) mechanized spray patching) Full-depth repairs (using AC, Machine patching with AC material PCC, or proprietary materials) Rejuvenators and seals Machine patching using hot mix Texturization using fine milling Slab stabilization and slab- Surface treatment (chip seal, chip jacking seal coat) Load transfer Slurry seal Crack and joint stitching Hot-mix overlay (includes milling Hot-mix overlays of AC pavements) Bonded PCC overlay Hot in-place recycling Cold in-place recycling Ultra-thin whitetopping 3 treatments 12 treatments 9 treatments