What type of pipe is vitrified clay pipe classified as?

Vitrified clay pipe is classified as a rigid pipe due to its structural characteristics. Rigid pipes are known for their strength and ability to maintain their shape under load, which is essential for applications in collection systems where ground movement or external weight from the surrounding soil may occur.

Vitrified clay pipe is made from a mixture of clay and other materials that are fired at high temperatures to create a strong, impermeable product. This high-temperature processing gives the pipe its rigidity and durability, making it suitable for use in sewer and drainage applications.

In contrast, flexible pipes, like certain types of plastic or rubber pipes, allow for more movement and distortion without breaking. Composite pipes typically involve a combination of different materials, and plastic pipes are generally made of polymers that provide flexibility. Vitrified clay pipe's rigid nature makes it distinctly different from these other classifications.