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rubber waterstop bar

xqy-gjz_03.jpgJingtong supplier Rubber Expansion Hydrophilic waterstop strip/water expanding bar

 

Bentonite is a swellable clay waterproofing compound that is glued or nailed in strips into construction joints. Known as a hydrophilic waterstop system, bentonite expands up to sixteen times its dry volume when it comes into contact with water, forming a compression seal in concrete joints. Bentonite’s ability to swell enables it to fill small cracks and voids in concrete, preventing the ingress of water around joints. And since clay is a natural material, bentonite is a popular waterstop choice for potable water applications.

 

Bentonite waterstop sealing strip is made from bentonite rubber by extrusion and vulcanization, for application of construction and building concrete joint waterproofing.

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Application:

PN bentonite rubber waterstop, is widely used in swimming pools, waste water / sewer solution projects, underground railway, tunnels, culverts, buildings etc, in the construction joints, expansion joints and cracks of concrete constructions. It is designed for water stop / waterproof of concrete joints.

--dams, locks, canals, water reservoirs and aqueducts

--bridge and deck abutments, dry dock

--promary and secondary containment structures

--storage tanks

--slabs-on-grade

--retaining walls

--foundation

--parking garages

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Expanding waterstop Types:

PN type--made from bentonite rubber by extrusion forming.

data sheet:

ITEMPN-150PN-220PN-300
volumn expansion rate %≥150220300
flow at high temperature (80℃X5h)no flowno flowno flow
low temperature test (-20℃x2h)no fragileno fragileno fragile

 

 

PZ type-made from bentonite rubber by extrsion and vulcanization forming.

Data sheet:

expanding bentonite waterstop.png

 

 IMG_8706

Features:

bentonite waterstop is elastic water stop material of construction concrete joints.

It has the water stop, sealing and waterproofing functions. 

It features of expanding / swelling when meet with water. And can stop water with water absorption.

When it expand, it also has the features of rubber, and is acid and alkali resistant. 

 

Operation and Storage:

As with other hydrophilic waterstop systems, bentonite must be kept dry prior to installation and concrete must be poured immediately after the bentonite is applied. Exposure to rain or moisture can cause bentonite to expand prematurely, damaging joints and weakening concrete as it cures. As with PVC waterstops, bentonite can be displaced or damaged during subsequent concrete pours and extra care must be taken to ensure an effective application.

Another consideration with bentonite systems is that the clay eventually dries out and deteriorates. Bentonite waterstops have a finite number of wet-and-dry cycles, making them less suitable for extreme weather conditions or environments that frequently become wet.

While bentonite is relatively economical, application can be labor intensive. 

 

PNPZ WAN

 

 

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  expanding waterstops.jpg   pvc waterstop.jpg

 

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Contact Information

 

Contact us:

 

Sales Manager: June Lee

Whatsapp/Wechat/Mob/Facebook:+8615075813385

Email:jingtong_june(at)jingtongchina.net 

 

 



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