Corrugated pipe for prestressed concrete
1. Product introduction and application areas:
Prestressed bellows are mainly used in post-tensioned prestressed concrete structural systems. This product is used as the main product for prestressed tendons to form channels in prestressed beams and slabs. It is divided into two systems: metal bellows and plastic bellows. There are two types of round tubes and flat tubes according to the shape. Each type of corrugated tube has a variety of specifications to choose from, which can meet the matching requirements of prestressed bars of different specifications such as steel bars, steel strands, and steel wires. Prestressed corrugated pipes are widely used in prestressed corrugated pipe system products required for large-scale construction projects such as highways, railways, bridges, high-rise buildings, water conservancy, electric power, etc. of various grades.
2. Metal bellows and galvanized bellows:
The prestressed metal bellows is composed of two materials, one is a black steel strip and the other is a galvanized steel strip, which is mainly made by machining the bellows, with wavy ports and mutual engagement.
3. Plastic bellows:
The prestressed plastic bellows is made of HDPE, which is a new type of pore-forming material. It has good sealing performance, no water seepage and slurry leakage, high ring stiffness, small friction parameters, corrosion resistance, aging resistance, electrical erosion resistance, and flexible elasticity. Good, not easy to break and so on.
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