Three-stage water stop screws are advanced construction fasteners designed to provide both structural support and waterproofing capabilities in concrete structures. These screws are particularly useful in applications where water resistance is crucial, such as in the construction of basement walls, dams, and other water-retaining structures.

Carbon Steel: Typically used for general applications.

Stainless Steel: For environments where corrosion resistance is required.

Alloy Steels: Used in applications requiring high strength or high temperature resistance.

Advantage:

Reusability: Unlike traditional water stop screws that are often left in the wall and cannot be reused, the three-stage water stop screw can be disassembled and its components reused, reducing construction costs and waste .

Waterproofing: The central water stop plate effectively blocks water penetration, providing a reliable waterproofing solution for concrete structures .

Adjustability: The design allows for adjustments to the wall thickness by simply changing the size of the central pull tube, without needing to replace the entire screw system .

Efficiency: The ability to disassemble and reuse the screws can increase construction efficiency by 10 to 20 times, simplifying the construction process and reducing costs .

Scope of Application

Basement Walls: Used in the construction of basement walls to prevent water seepage and provide structural support.

Dams and Retaining Walls: Employed in dam construction and other retaining walls to ensure watertightness and stability.

Underground Structures: Ideal for use in underground structures where waterproofing is critical to prevent water infiltration.

Industrial Construction: Used in industrial construction projects where both strength and waterproofing are required.