Collared Joint

Concrete pipes are mostly joined by collared joints. Pipes are having spigot at one end and socket at the other and jointed by a gasket or hemp and clean cement. It is further strengthened by providing a concrete collar wide enough to cover the overlap of the joint. Pipes of bigger diameters are joined along with collared joints. Pipes without sockets are put butting together and joined with collar.

                                                           Figure 4: Collared Joint

Since Welding techniques have developed to a great extent, now-a-days practice is developing to join pipes through welding. Specially, metal pipes are most appropriate for welding.