| 摘要 |
<p>A Collar, A Concrete Pipe Section, and Methods of Manufacturing the Same A collar for attaching to a concrete pipe section and a method of manufacturing the collar, the concrete pipe section comprising a spigot formed on a tubular concrete body, the collar comprising: an abrasion resistant layer; and a corrosion resistant layer, wherein the collar is configured to mesh with the spigot of the concrete pipe section. A concrete pipe section and a method of manufacturing the concrete pipe section, the concrete pipe section comprising: a tubular concrete body having a first end and a second end, said second end disposed opposite to the first end; a collar disposed on the first end of the tubular concrete body, the collar comprising: an abrasion resistant layer; and a corrosion resistant layer; and a spigot formed on the tubular concrete body at the second end, wherein the collar is configured to mesh with a spigot of an adjoining concrete pipe section.</p> |
