TL;DRAbstract
Polymer-coated steel culverts were first installed in New York State in late 1978 and 1979 on two sections of the Genesee Expressway in Livingston County. A roller-coated product (Beth-Cu-Loy PC) was used in Section 7A and a laminate (Nexon) in Section 7B. Shortly after installation, several Nexon-coated pipes showed signs of abrasion and delamination. This study was initiated to determine the causes of this early failure and to provide the Department with guidelines for future use of polymer coatings. Included is a summary of site conditions at each of 71 culverts, together with condition surveys conducted over a 9-year period. In addition, several 2- by 4-ft polymer and metallic coated plates (eight different products in all) were installed in three other sites in New York State to compare their relative performances. These plates have been observed for up to 8 years.
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Polymer-coated steel culverts were first installed in New York State in late 1978 and 1979 on two sections of the Genesee Expressway in Livingston County. A roller-coated product (Beth-Cu-Loy PC) was used in Section 7A and a laminate (Nexon) in Section 7B. Shortly after installation, several Nexon-coated pipes showed signs of abrasion and delamination. This study was initiated to determine the causes of this early failure and to provide the Department with guidelines for future use of polymer coatings. Included is a summary of site conditions at each of 71 culverts, together with condition surveys conducted over a 9-year period. In addition, several 2- by 4-ft polymer and metallic coated plates (eight different products in all) were installed in three other sites in New York State to compare their relative performances. These plates have been observed for up to 8 years.
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