Putty type water expansion sealing ring universal name: water expansion sealing ring, pull bolt water expansion sealing ring, pull bolt sealing piece. Classification: putty type water expansion sealing ring and product type water expansion sealing ring

Product features:

in the traditional concrete wall formwork support, the pull bolt or the slatted pull rod is the main connection between the internal and external two groups of vertical formwork, because the fixed steel formwork used by thousands of pull bolts because of its length through the wall, thus losing the waterproof concrete itself has the waterproof function. In order to solve this problem, the current construction is to weld a 2-3mm thick, 80mmx80mm steel sealing plate in the middle of the puller bolt. the defects of this method are: it is difficult to check and guarantee the quality of the weld, and it is passive waterproof once there is a weld crack, slag, burn through, needle strong pores and other defects, it will produce water seepage access and difficult to cure.

Putty type water swelling sealing ring is made of PN-300 type water swelling rubber, and the performance reaches the indexes in GB/T18173 "Polymer Waterproof Materials" part III water swelling rubber. It can be circular or rectangular piece strong body general specifications for outer diameter size D=40mm, thickness H=10mm. In use, as long as the water stop sheet is tightly set in the middle of the pull bolt or lat type pull rod, and finally buried in cast-in-place concrete can play the best waterproof effect.

Putty type water expansion sealing ring is made of polymer inorganic water absorption expansion material and rubber refining, a new waterproof engineering material. Treat water expansion o-ring seal general specifications for the outer diameter of 40 mm and 45 mm, thickness of a centimeter, inner diameter processed into inner diameter according to the steel size is 8 mm, 10 mm. 12 mm, 14 mm. 16 mm. 20 mm specification. Water expansion sealing ring water after water can absorb water expansion, expansion rate of 200%, by its own expansion of the concrete and the gap of the pull bolt, can completely play the role of water stop, in the actual construction, the operation is very flexible and convenient, and save labor and time and raw material costs. It is the replacement product of welding sealing plate (ring). At present, concrete formwork pair bolt sealing ring has been applied in various projects.

the putty type water expansion sealing ring is made of water expansion rubber, it can be a round sheet, the opening of the middle position should be based on the bolt or the different on the pull ring, respectively made of a round hole or cut a long seam through both sides (. the thickness of the sealing ring is 7~20mm, and the diameter or side length is 30~80mm. the commonly used specifications are PZ type, which is a rubber ring with outer dimension D=40mm, thickness H =10mm, and middle hole diameter 2mm smaller than the diameter of the pull bolt (adjust the external dimension according to the height of the water head, ring body thickness or the number of rings used on each bolt). In use, as long as the water stop ring is tightly set on the middle of the pull bolt or the pull piece, and it is finally buried in the cast-in-place concrete. When the building is used, such as a side of the pressure water bolt gap (due to the dry shrinkage of the concrete itself, inevitable) into the middle of the rubber sealing ring, sealing ring water absorption expansion, the formation of impermeable plastic colloid, blocking its surrounding seepage access, play a role in sealing.