Corrugated plastic tie rod pipe

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Water‑Stop Tie‑Rod and Accessories

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Corrugated PVC pipe, also known as corrugated plastic pipe, is made of UPVC and has wide applications in the construction and utilities industries. This pipe is manufactured with a diameter of 25 mm and a wall thickness of 1.8 mm, with thickness customizable upon request

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Corrugated plastic pipe is manufactured using special thermal and pressure corrugating devices so that, when used in concrete, the corrugations provide greater bonding with the concrete. This pipe serves as an intermediate piece between the waterstop tie rod and double-cone sheath, and in cases where sealing the tie rod passage through concrete is not important, it is used as a sheath for the tie rod.

In general, this corrugated plastic pipe is a tubular or hollow cylindrical section made of plastic, with multiple applications in the construction industry. It is also used to protect electrical or telephone cables. Due to its light weight, corrosion resistance, and ease of installation, it is recommended for specific applications.

Important points about corrugated plastic tie rod pipe

Protection of tie rods: Using corrugated plastic pipe as a sheath for tie rods keeps them intact and prevents damage.
Greater precision: These pipes, thanks to their special design, offer greater precision in installation and assembly.
Increased efficiency and longevity: Using corrugated plastic pipe improves the performance and lifespan of tie rods, which is very useful for later reuse in future projects.
Corrosion resistance: Due to their plastic material, these pipes are highly resistant to corrosion and suitable for different environments.
Ease of installation: Lightweight and well-designed corrugated plastic pipes are easy to install without the need for complex equipment.

Usage quantity of corrugated plastic pipe

As an intermediate piece between plastic waterstop tie rods:

To determine the pipe cutting length, subtract 16 cm from the wall thickness.

Example: For a wall thickness of 30 cm, the cutting length of the pipe will be 14 cm.
As an intermediate piece for double-cone sheaths:

To determine the cutting length, subtract 2 cm from the wall thickness.

Example: For a 30 cm-thick wall, the cutting length will be 28 cm.
As a sheath for passing tie rods:

Cut the pipe to match the full wall thickness.

Example: For a 30 cm-thick wall, the pipe cutting length will also be 30 cm.

Storage and maintenance of corrugated plastic pipe

Conditions: Keep away from cold, frost, heat, and prolonged direct sunlight exposure.
Ideal temperature: +10 °C to +30 °C

The corrugated tie rod pipe is made of high-density polyethylene (HDPE) or polypropylene (PP), both of which are strong, lightweight, and chemically resistant plastics.

Physical properties:

Cylindrical in shape, with a regularly corrugated or grooved outer surface that ensures better bonding with concrete and greater stability in place.
Outer diameter is typically between 20 and 25 mm, and the length is adjusted according to wall thickness (e.g., 10, 15, or 20 cm).
Resistant to the mechanical pressure of concrete, it does not deform or crack during the concreting process.
The inner surface is smooth so that the bent tie rod can move easily inside and be removed afterwards.

Chemical properties:

The plastic material is completely resistant to moisture, alkaline compounds in concrete, sulfates, and harmful ions such as chlorides.
It does not react with concrete or rebar and does not decompose or degrade even with prolonged contact.
To enhance durability and service life, it often contains UV stabilizers, thermal stabilizers, and antioxidants.
It withstands normal concreting temperatures, with deformation occurring only at high temperatures (above 130 – 150 °C).
Non-corrosive, non-toxic, and chemically inert, though it is not biodegradable and should be recycled industrially like other plastics

To use corrugated plastic pipe between a waterstop tie rod and a double-cone sheath, first cut the pipe to the desired length. Then, use this pipe as an intermediate piece during the assembly process. This method allows you to connect the components with greater precision and efficiency while ensuring proper sealing.