Price of φ90 Prestressed Plastic Corrugated Pipe for High-Speed Precast Beams

Price of φ90 Prestressed Plastic Corrugated Pipe for High-Speed Precast Beams

Prestressed plastic corrugated pipe is produced using HDPE as the raw material and is primarily used in post-tensioned prestressed concrete structures for forming ducts in tension members. It offers advantages such as excellent sealing, no water leakage or grout seepage, high ring stiffness, low friction coefficient, aging resistance, electrical erosion resistance, good flexibility, resistance to damage by tamping rods, and a new connection method that facilitates easier construction connections. Price of φ90 Prestressed Plastic Corrugated Pipe for High-Speed Precast Beams, mainly used in large-span tensioning projects such as highways, railways, bridges, slopes, and high-rise buildings.

When the duct-forming material is damaged, the grout serves as the final protective barrier for the prestressed steel in prestressed concrete structures. Plastic corrugated pipe is a new type of duct-forming material. Compared to metal corrugated pipes, it offers the following advantages:

Prestressed Plastic Corrugated Pipe

1. The raw material for prestressed corrugated pipes is mostly made from recycled HDPE pellets through extrusion molding. Price of φ90 Prestressed Plastic Corrugated Pipe for High-Speed Precast Beams, which requires the raw material to have high strength and good flexibility to ensure the produced pipes meet national standards. Due to early involvement in the field, technology, production capacity, and services are relatively mature. The above-mentioned enterprises, having started early, dominate the raw material supply for prestressed plastic corrugated pipes, with supplies covering nationwide. Prestressed corrugated pipes have far superior corrosion resistance compared to metal, being resistant to acid and alkali corrosion. They do not corrode themselves and effectively protect the prestressed tendons from corrosion. Many prestressed structures are subjected to severe external influences, such as deicing salts or saline water. When post-tensioned components suffer from waterproofing layer failure, micro-crack leakage, or blocked or failed drainage facilities, the prestressed tendons may be exposed to corrosion.Price of φ90 Prestressed Plastic Corrugated Pipe for High-Speed Precast BeamsThe "Grouting of Prestressed Tendons" in the FIP Construction Guide (1990) points out that metal pipes do not have permanent anti-corrosion capabilities and are insufficient to resist water penetration and reach the grout and prestressed tendons. In contrast, prestressed plastic corrugated pipes provide a barrier protection for prestressed tendons far superior to metal corrugated pipes, preventing harmful substances from penetrating and contaminating the pipeline, thereby ensuring better durability of post-tensioned prestressed structures;