Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering

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  • Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
  • Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
  • Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
  • Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
  • Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
  • Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
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  • Overview
  • Product Description
  • Specification
  • Installation
  • FAQ
Overview

Basic Info.

Model NO.
JT-SW17
Certification
CE, ISO
Shape
Strip
Size
10X20mm, 15X20mm, 20X25mm, 20X30mm, 30X40mm
Type
Roofing and Waterproofing
Colour
Black/Red/Blue/Customized
Function
Anti-Static, Heat Insulation, Sound-Absorbing, Wat
Bentonite Expansion Rate
≥300%
Polymer Expansion Rate
>400%
Tensile Strength(MPa)
≥22
Density(Mg/M3)
1.1-1.3
Elongation at Break(%)
400
Working Temperature
-40-120 Celsius
Hardness
30-90 Shore
Transport Package
According to Customer Needs
Specification
Customized
Trademark
HengJingGong
Origin
China

Packaging & Delivery

Package Size
36.00cm * 36.00cm * 2.00cm
Package Gross Weight
1.500kg

Product Description

Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
Product Description
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
Water-expandable waterstop is a new type of watertight sealing strip made mainly of hydrophilic polymers (e.g., super-absorbent resin or modified rubber). Inside the material are a large number of hydrophilic groups (carboxyl, hydroxyl, etc.). On contact with water, osmotic pressure, hydrogen bonding and chain-unfolding make the strip swell rapidly to 2–6 times its original volume, forming a gel-like elastic body that plugs the leakage paths in concrete construction joints, deformation joints or around wall-penetrating pipes, thus realizing a "stop-water-with-water" seal.
Main types
    *Bentonite (PN/BW): usually rectangular, soft and self-adhesive, swelling 150 %–300 %, suitable for irregular gaps or post-construction repairs.
    *Polymer (PZ/BF): vulcanized and shaped, with better rebound and compression resistance, swelling 150 %–600 %, widely used in new underground works, tunnel segments and other long-term pressure locations.
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
Features & benefits:
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
*Quality sodium bentonite clay and rubber materials.
*Moisture activated.
*Strong, durable with high cost effectiveness.
*High water absorption with excellent compression seal.
*High expansion control ability for preserving its integrity.
*Controlled internal pressure in surrounding concrete to avoid spalling and cracks.
*Withstand high water pressure.
*Capable to self-healing.
*Easy and fast to transport and install.
*Easy to joining.
*Non toxic
Key properties
    *Swelling pressure 0.5–1.5 MPa, establishing a dynamic balance with groundwater pressure.
    *Swelling rate can be adjusted (slow-swell type ≤ 50 % of maximum within 186 h), preventing displacement before concrete pour.
    *Ageing-resistant, non-toxic, no leachate, stable after long immersion.
    *Self-adhesive or nail-fixed, easy to install, capable of self-sealing micro-cracks caused by subsequent settlement.
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
Sizes:
    *Width: 10 mm, 15 mm, 20 mm, 30 mm, 40 mm, 50 mm.
    *Height: 10 mm, 20 mm, 30 mm, 25 mm, 40 mm, 50 mm, 60 mm.
    *Color: black, red and other colors also can be customized.
    *Note: Other specifications also can be customized.
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
All Types of Waterstops to Prevent Liquid Leaking
Waterstop plays an important role in waterproofing a concrete structure, especially joints, the weakest part which is liable to leakage of water or chemical liquids. So waterstops are designed as a fluid-tight diaphragm embedded in or running along the joints to solve these problems. Manufactured from various materials in a range of shapes and sizes, the waterstops are perfect for various types of applications as shown below:
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
Specification
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
Bentonite Waterstop Strip Parameters
NO.
ITEM
Result
PN-150
PN-220
PN-300
1
Expansion rate/%≥
150
220
300
2
Flow at High Temperature (80℃×5h)
No fiow
No fiow
No fiow
3
Low temperature test (-20℃×5h)
No crack
No crack
No crack
4
Peel strength
0.05MPa
5
Shear Strength
1.0MPa
6
Hydrostatic Pressure
1.2MPa
Polymer Waterstop Strip Parameters
Physical properties
PZ-150
PZ-250
PZ-400
PZ-600
Hardness (shore A)
42±7
42±7
45±7
48±7
Tensile strength
3.5 Mpa (min)
3.5 Mpa (min)
3 Mpa (min)
3 Mpa (min)
Elongation
450% (min)
450% (min)
350% (min)
350% (min)
Expansion rate
150%
250%
400%
600%
Repeated water immersion test
Tensile strength
3 Mpa (min)
3 Mpa (min)
2 Mpa (min)
2 Mpa (min)
Elongation
350% (min)
350% (min)
250% (min)
250% (min)
Expansion rate
150%
250%
300%
500%
Low temperature bending (-20°C*2h)
No crack
No crack
No crack
No crack
Installation
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
Hengshui Jingtong Rubber Co., Ltd., located in Hebei Province's Hengshui City, is a professional manufacturer of engineering rubber products. Our product range includes bridge bearings, expansion joints, water stop strips, water stop belts, inflatable cores, building deformation joint device and water plugs, which are widely used in bridge, tunnel, water conservancy, and power engineering projects. The company boasts advanced technology and mature processes to ensure reliable product quality.
We have a professional technical team and a comprehensive after-sales service system to ensure customers receive high-cost-performance products and attentive service. Hengshui Jingtong Rubber Co., Ltd. is committed to continuous innovation to meet market demands and looks forward to esta blishing long-term cooperative relationships with customers from both domestic and international markets.
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
Self-Expansion Hydrophilic Bentonite Swelling Waterstop Swelling Strip for Constructional Tunneling Engineering
FAQ
1.When can I get the quotation?
A:We usually quote within 24 hours after we get your inquiry.
2.How long can I expect to get the sample?
A:The samples will be ready for delivery in 5-10days. The samples will be sent to you via express and arrive in 5-7days.
3.How long is the delivery time
A:Usually 10-15 days, depending on the quantity purchased.
4.How can I get a sample to check your quality?
A:After negotiating the price, we will provide you with samples for testing.
5.what can you buy from us?
Bridge Bearing Pad,Seismic isolation bearing,Expansion Joint,Rubber Inflatable Airbag,Waterstop Belt/Strip,Steel Expansion Joint,Butyl Tape
6.What's payment term?
A:T/T, L/C at sight, Western Union
7. Do we have quality guarantee?
Of Course!
--from raw material to manufacturing, we have rigid quality control.
--before delivery, we have strict quality inspection.
--Third party inspection is also available at your request.
--We also have ISO, CE certificates.

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