What is the size of the waterproof steel sheet for the tension bolt, and is there any requirement in

Pull bolts. The water-stopping steel sheet should be 50*50, 30*30, 15*15. There is no requirement in the specification, the purpose of using the waterproof steel sheet is to prevent water seepage at the tension bolt, one is to ensure that the weld at the welding place of the tension bolt and the waterproof steel sheet should be fully welded, and no pores can be left, and the other is to ensure that the concrete is poured and compacted to play a waterproof effect.

Bolts: mechanical parts, cylindrical threaded fasteners with nuts. Consisting of a head and a screw (a cylinder with an external thread.

A type of fastener composed of two parts, which needs to be matched with a nut to fasten and connect two parts with through holes. This form of connection is called bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection.

According to the force mode of connection: ordinary and with hinged holes. According to the shape of the head: there are hexagonal heads, round heads, square heads, countersunk heads, etc. Among them, hexagonal heads are the most commonly used. Generally, countersunk heads are used where connection is required. ‍

According to the requirements of page 52 of the waterproof structure of underground building 10J301, the wing ring of the bolt should be 5mm thick and 30mm higher than the screw, and the screw should be usually used, so the waterproof wing ring 80*80-5 is in line with the requirements.

There is no requirement in the specification, the purpose of using the waterproof steel sheet is to prevent water seepage at the tension bolt, one is to ensure that the weld at the welding place of the tension bolt and the waterproof steel sheet should be fully welded, and no pores can be left, and the second is to ensure that the concrete is poured and compacted, so as to have a water-stopping effect. 50*50 water-stop steel sheet is commonly used in engineering. Of course, there are also 30*30, 15*15

Hello, waterproof bolt is a kind of building waterproof material, in the process of use can play a role in building a building template, fixing the width of the template, preventing the role of violent mold, another role after the use of waterproof bolts can stop water, waterproof.

What is the specification of a waterstop bolt? It is not difficult for us to understand that the specification includes the scope of use, the diameter of use, the length of use, and the operation details of the water-stopping bolt.

Waterstop bolts are suitable for all walls that need to be waterproofed, such as garages, basements, passageways, subway tunnels, sewage treatment tanks, nuclear power plants, etc.

The diameter of the water-stopping bolt is: 12mm, 14mm, 16mm, 18mm, and the larger specification can be customized, and it is usually recommended to use a water-stop bolt with a diameter of 12mm for walls below 5 meters. The higher the wall, the larger the diameter, regardless of the thickness of the wall.

The length of the water-stop bolt is the width of the wall plus the length of the exposed wall rod, and under normal circumstances, a 30 cm wall can be used with a length of 65 cm. There is a certain relationship between the width of the wall and the length of use.

The operation details of the water-stopping bolt are used in the project, and there are operating standards in the early stage of the project, which are formulated and issued by the relevant personnel. We hope you find it helpful. Thank you.

The specification does not make specific requirements for the size of the waterstop;

Technical specification for waterproofing of underground works GB 50108-2001

All kinds of steel bars or binding wires set inside the waterproof concrete structure shall not touch the formwork. When the bolts used to fix the formwork must pass through the concrete structure, tool-type bolts or bolts can be plugged, and a square water-stopping ring should be welded on the bolts. After removing the mold, waterproof measures should be taken to seal the grooves left, and waterproof paint should be applied on the surface of the water. See figure.