Water swelling waterstop strip is made from water swelling rubber water line on the basis of the ordinary rubber water-stop. The product swell when contact with the structures and increased the tightness between them which improved water stop and waterproof performance and also solved the problem of circle seepage which puzzled people long term.This series product have been used widely in some key projects and got excellent results.
Application
Water swelling waterstop strip can be widely applied to various types of concrete structures, such as :dams. Reservoirs, subway, culverts, tunnels and other underground works.
Classification
According to shape it can be divided into “rubber putty type(BW type)”and rubber product type(PZ type) (unvalcaization and vulcanization).We can select according to diffient demand of water-roof construction.
1)BW seal (rubber putty type)which when water go in, is a new type of seal material.It can effectively resolve the sealing problems of settlement joints of concrete structures.
The GBW seal with high inflation rate, the mobile complementary is strong. Have stronger balance self-healing function when in the construction joints. It can block of new tiny cracks caused by settlement , For completed projects, Such as aperture infiltration water, can be used to be leaked.
2)PZ water-swellable rubber waterstop bar(rubber product type)
It is sulfided and formed, but it is different from common rubber products. It features good resilience and extendibility ,and also has elastic sealing and water stopping effect.
It expands with water, and stops water by water, making the water-stop effect more reliable than common waterstop materials
Product Features
1.It features good elasticity, extendability ,swellability and water stopping performance. The swelling rate in water could adjusted between 100% and 500%. The swelled volume remaions the elasticity and extendability of rubber , and the swellability of rubber , and the swellability rate is not influenced by water quality.
2.It still has good water stopping performance in the wide temperature range and perfect weather resistance.
3.It features good water resistance ,chemical media resistance and endurance.
It has no hazardous matters ,no precipitate from dissolving and swelling, and no pollution to environment.
It could be manufactured into any shape in accordance with end user’s requirements,
And also be made with common rubber into a composite water proof material.
Installation
1.for concrete construction joint interface after hardening , sweeping away the dross, dust and other debris, expose the hard base.
2.construction of the late poured band and horizontal construction joint, the water swelling strip along the extension direction of construction joint, using its own adhesive paste directly in the middle position of construction joints ,joint lap joint is not less than 5cm, and shall not leave the breakpoint; for vertical construction joint shall be set aside, positioning and shallow groove , the sealing strip embedded in the reserve tank, if not reserved slots , can also be used for high strength steel nails. And its use of self-adhesive ,directly pasted on the construction joint interface , through the isolation paper uniform compaction.
3.sealing strip fixed end, tear off isolation paper will be poured concrete under.
4.seal paste parts can be selected in the opening laterally mounted.
5.for sealing strip is firmly fixed , horizontal seam at intervals of 1m high strength steel for nailing , vertical seam at intervals of 0.5m high strength steel for nailing.
