Guangdong Reinforced Concrete Pipe Manufacturer - Price - Factory Supply - Sales [Songshulin Environmental Protection Building Materials Co., Ltd.] Reinforced concrete pipes are pipes made from batch concrete or reinforced concrete, used for conveying fluids such as water, oil, and gas. They can be categorized into four types: plain concrete pipes, ordinary reinforced concrete pipes, prestressed reinforced concrete pipes, and pre-stressed concrete pipes. Their main feature is the use of self-compacting cement (see special cement) to generate prestress during the hardening process, simplifying the manufacturing process. Compared to steel pipes, concrete pipes can save a significant amount of steel, extend service life, require less investment to set up factories, and are easy to lay and install. They are widely used in factories, mines, oil fields, ports, urban construction, and irrigation projects. They are used for conveying water, oil, gas, and other fluids. Concrete pipes are divided into four categories: plain concrete pipes, ordinary reinforced concrete pipes, self-compacting reinforced concrete pipes, and pre-stressed concrete pipes. Depending on the internal diameter of the pipes, they can be categorized as small diameter pipes (diameter less than 400mm), medium diameter pipes (400-1400mm), and large diameter pipes (above 1400mm). According to the water pressure-bearing capacity of the pipes, they can be divided into low-pressure pipes and pressure pipes, with working pressures of 0.4, 0.6, 0.8, 1.0, 1.2 MPa, etc. Compared to steel pipes, concrete pipes can also be divided into flat-end pipes, socket-and-spigot pipes, and beveled-end pipes based on the type of pipe joints. Their joint types include cement mortar tape joints, wire mesh cement mortar tape joints, cement mortar socket-and-spigot joints, and rubber ring socket-and-spigot joints.