The ordinary pipe of uniform internal diameter and well thikness throughout its lenght jointed at one or both ends with short length “collars” of slightly large diameter but similar in design and Construction. Reinforced concrete (RCC) Pipes are manufactured by centrifugal spinning process in which mechanical mixer concrete and reinforcement cage extended throughout the pipes barrel are used. The reinforcement cage for precast concrete pipes consist of spirals or circular rings and straights of mild steel wire. Reinforcement cages are placed symmetrically with respect to the thickness of the rcc pipe wall. By combining the centrifugal force and vibration to spin pipes horizontally, the compaction of concrete is achieved in these precast concrete pipes.
