Prestressed plastic corrugated pipe is a new type of hole-forming material. Compared with prestressed metal corrugated pipe, it has the following advantages: Prestressed plastic corrugated pipe is made of high-density polyethylene as raw material and produced with advanced production technology. Its corrosion resistance is far better than that of metal. It is not afraid of acid and alkali corrosion. It does not corrode itself and can effectively protect prestressed tendons from corrosion. Many prestressed structures are exposed to severe external influences, such as deicing salts or brine. Prestressed plastic corrugated pipes can provide a barrier protection function for prestressed tendons that is far superior to metal corrugated pipes, and can prevent harmful substances from penetrating the pipeline and contaminating it, thus ensuring better durability of the post-tensioned prestressed structure.
Under the same conditions, the friction coefficient of the reserved holes of the prestressed plastic bellows is significantly smaller than the friction coefficient of the reserved holes of the metal bellows, which reduces the friction loss of the prestressed force during the tensioning process. The friction coefficient of general prestressed plastic bellows is taken and the friction coefficient of metal bellows is taken as stress. Plastic bellows has high strength, is not afraid of being stepped on, and is not easily punctured by vibrator rods. Its sealing performance and anti-permeability performance are higher than those of metal corrugated pipes. Pipe, more suitable for vacuum grouting
Prestressed plastic corrugated pipe has good flexibility and high ring stiffness. It is not afraid of being stepped on and is not easily chipped by a tamping rod.
Prestressed plastic corrugated pipes are non-conductive and can prevent stray current corrosion, while metal is a good conductor of electricity
Stressed plastic corrugated pipes have better fatigue resistance and can greatly improve the fatigue resistance of components.
Anhui Bengbu prestressed plastic corrugated pipes with excellent quality 15933187015