Wuhai, Inner Mongolia Chifeng 90/100/110 bridge prestressed corrugated plastic pipe factory direct Hengshui prestressed corrugated HDPE pipe, prestressed concrete corrugated plastic pipe lowest prices nationwide have long prestressed works mostly metal bellows as a pore-forming material, but poor metal bellows seal performance, easy to damage, easy corrosion, friction large, in order to overcome these disadvantages metal bellows, but also work together in order to provide additional corrosion tendon protection, raw material is HDPE (high density polyethylene) plastic Bellows was used as a post-tensioned bonded revolutionary products, improve the life of prestressed concrete structures. After the bridge holes for optical card balance with prestressed corrugated plastic pipe into the hole as prestressing material tensioned prestressed is an important part of the system, tensioned concrete structure, the pore-forming component is applied. The company produces plastic corrugated pipe meets "prestressed concrete bridge with plastic corrugated pipe standard JT/529-2004". Its long life, without being subject to direct sunlight conditions, raw material is HDPE prestressed bellows life up to 50 years. Brittle temperature prestressed HDPE corrugated pipe is -70 ℃. Under normal low temperature conditions (above -30 ℃) do not have to take special protective measures during construction, winter construction is convenient, but, HDPE prestressed bellows have good impact resistance. Meanwhile prestressed corrugated plastic pipe sealing, no leakage of plasma leakage, high ring stiffness, low coefficient of friction than the metal bellows, anti-corrosion, good flexibility. Physical and mechanical properties of corrugated plastic pipe listed in the following table: No. Item Specifications 1 under the ring stiffness ≥ 4 2 loads under lateral load requirements unrecoverable residual deformation does not exceed 10% of the diameter of 3 flexibility required bend radius and number of cross-sectional deformation no more than 5% of the diameter, with 4 sealing plug inspection requirements under or outside pressure, the wall and the joints are not broken, do not leak under 5 abrasion resistance specified test conditions, the wall thickness of the residual tension after ≥ 1mm wear 6 bond performance ≥ πb = F ÷ (LbxPb,) 2013 summer rain, bridge construction to bring a lot of difficulties with its corrugated plastic pipe is not afraid of water, corrosion, rust and other features popular majority of bridge construction sector trust. Optical Engineering Rubber Co., Ltd. Hengshui solemn commitment of all demand in 2000 above all give the lowest wholesale price, the biggest return on tangible benefits to our customers ~! Buyers are welcome to call us to buy bridge series!