Hengshui Hengguang Engineering Co., Ltd.

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Vacuum grouting technology and BB plastic corrugated pipes are a new technology in post-tensioned prestressed grouting construction. Plastic corrugated pipes are used instead of traditional metal corrugated pipes. , seal and evacuate the hole tube, and then pour optimized special mud. It can not only solve the problem of incomplete and non-dense grouting in the metal corrugated pipe channels of the traditional pressure grouting process, but also provide two layers of powerful protective barriers for the post-tensioned prestressed system, greatly improving the protective conditions of the prestressed tendons, thereby improving the prestressed force The safety and durability of the structure and components can also reduce the project cost (accounting for the prestressed part), reduce maintenance and repairs, and save a lot of costs. It can be widely used in bridges, highways, railways, high-rise buildings, Hydropower, nuclear power, sewage treatment plants and other fields.
Although traditional metal corrugated pipes can protect the force bars, they may still be corroded when the concrete cracks or are used for too long, and often cannot provide good protection for the force bars. The project hopes to have a material that will not corrode, can resist the intrusion of eroding substances, and can still prevent the intrusion of eroding substances even after grouting damage. Plastic corrugated pipes are an ideal material.
Product features:
, Corrosion resistance, ensuring the durability of the post-tensioned prestressed structure
, Can effectively prevent the intrusion of chloride ions
Non-conductive, can prevent current corrosion
br/>, has a high linear expansion coefficient (*-)
, has a low elastic modulus
, has high strength, is not afraid of being stepped on, and is not easily penetrated by the vibrator
, has good fatigue resistance and can greatly improve the fatigue resistance of components.