What is a notable feature of pre-stressed concrete pipe?

The notable feature of pre-stressed concrete pipe is that it contains a steel reinforcement cage. This design is integral because it enhances the strength and durability of the pipe. The pre-stressing process involves placing the steel reinforcement under tension before the concrete is poured. This tension counteracts the tensile forces that the pipe experiences during its use, allowing it to support heavy loads and withstand external pressures without cracking.

The presence of the steel reinforcement cage is crucial for applications involving significant environmental stressors, such as soil movement and water pressure. This characteristic distinguishes pre-stressed concrete pipe from other types of pipes that may not have the same level of structural integrity or load-bearing capacity.