The objectives of this project were to identify the causes of the premature failure of Florida's green-colored pavement markings (GCPMs) and to produce guidelines and improved specifications for the future installation and testing of new GCPM materials. The researchers reviewed relevant literature, interviewed contractors and vendors, visited existing GCPM sites in Florida, and performed laboratory testing on GCPM materials. In the field, the researchers evaluated four types of GCPM materials across 32 site installations. The materials included preformed thermoplastic, epoxy-modified acrylic, epoxy-resin, methyl methacrylate, and nondurable paint. While many installations were successful, some were severely distressed and failing, as noted by cracking, pavement deterioration, delamination, wear, color degradation, etc. The probable causes range from poor installation methods, moisture movement, shrinkage, thermal incompatibility, susceptibility to UV light, and traffic abrasion.
The objectives of this project were to identify the causes of the premature failure of Florida's green-colored pavement markings (GCPMs) and to produc...
The Louisiana Department of Transportation and Development (DOTD) has constructed many of its roadways with hot mix asphalt, relying on control of vol...
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