Reinforced Cement Concrete Pipes:

RCC cylinder pipes are similar to pre-stressed concrete pipes except that in place of high tensile steel wire mild steel rods are used as circumferential reinforcement. A rod is wound spirally under tension onto a rotating metal cylinder and being welded to the cylinder at both ends. The reinforced cylinder is then covered internally and externally with concrete. The internal lining is spun and external coating applied by impact and smoothed in layers. For designing, the core steel cylinder and the reinforcement both are assumed to resist hoop stresses. They are available within diameters from 200 mm to 1800 mm. They are mainly used as water mains.