Hydrophilic Swelling Bentonite Strip Swellable Waterstop for Basement Construction in Waterbar Joint

Product Description

Product Description:

Product Description 
General description of waterstop tape:
waterstop is a hydrophilic rubber waterstop that swells upon contact with water to prevent water infiltration 
through cast-in-place concrete construction joints subjected to continuous or intermittent hydrostatic pressure. 
It is easy to install and functionally replaces conventional passive PVC dumbbell waterstops.
waterstop is also ideal for industrial projects that may require an elevated level of chemical compatibility 
for long term performance.

Hydrophilic waterproof rubber water stop strip for concret joints is an absorbent strip used to seal 
and waterproof concrete joints. It is commonly made of natural sodium bentonite clay and synthetic rubber. 
Both the modified synthetic rubber and the bentonite expand in the joint when exposed to moisture. 
It is a new type of waterproof material, water stop, waterproof effect is more reliable than ordinary rubber. 
In contact with water the waterstop strip will swell approximately 150%-600 % of its original dry volume, 
the expansive clay mass will seal the cracks and small voids in the joint.

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
[The physical properties of the water stop material ]
 

No	Items		B	S	J
1	Hardness(SHAO ER A)		60±5	60±5	60±5
2	Breaking ength MPa		≥15	≥12	≥10
3	Elongation at break,%		380	380	300
4,Constant pressure permanent deformation	70ºC×24h(%)		≤35	≤35	≤35
	23ºC×168h(%)		≤20	≤20	≤20
5	Brittleness temperature(ºC)		≤-45	≤-40	≤-40
6	Air aging 70ºC×168h	Hardness change(degree)	≤+8	≤+8	/
		Strength rate low(%)	≥12	≥10	/
		Elongation rate reduce (%)	≥300	≥300	/

[ NOTE] construction:
Water stop is in concrete pouring process of some or all of the buried in the concrete, concrete has a lot of the stones and sharp Angle steel head,
 
Due to the tear strength of plastic and rubber three to five times stronger than tensile low, water stop once punctured or tear, does not need much force gap will enlarge,
 
So in the process of water stop positioning and concrete is poured concrete, should be attention aid to cast positioning method and stress, in order to avoid water-stop punctured, influence water effect,

Specific matters needing attention are as follows:
 
1 Water stop shall not exposure long time at outdoor, prevent the rain, do not contact with strong polluting chemicals.

2When transport and construction To prevent machinery, water-stop steel damage.
 
3 After construction process, water stop must be reliable fixation, avoid displacement occurred when pouring concrete, guarantee the water stop in the correct position in concrete.
 
4Fixed water-stop methods are: to use the additional reinforcement fixed; Special fixture fixed; Lead wire and fixed templates, etc., if you want to punch, only selected in
 
Edge of the area, and may not damage other parts.
 
5 Users order should according to the engineering structure, calculation length of good product design drawings, heterotypic structure should have the drawings, as far as possible will check the water in the factory
 
Belt connected into a whole, can be used to connect at the scene, the electric heating plate vulcanizing bonding or cold bonding (rubber water-stop) or welding (plastic water stop)
 
Methods, If user connections have difficulty, can send technical personnel on-site guidance.

Product Specifications

Length(mm)	Width(mm)	Thickness(mm)
5000	20	25
Standard Specifications:1.Section Size:20mmX25mm;2.lLength:5.0m/roll;3.Package:10rolls/box. Size bias:Length is within specification value±1%,width and thickness is within specification value±1%.Other special specification and size is confirmed by two sides.

Product Performance and Standard(JG/T141-2001- The People's Republic of China Building Industry Standards)

Items		Index
		Common	Slow-swelling
Anti-water pressure,Mpa≥		1.5	2.5
Water welling rate in specified time/%	4h	200-250	----
	24h	----	200-250
	48h
	72h
	96h
	120h
	144h
Maximum water swelling ratio/% ≥		400	300
Density,g/cm3		1.6±0.1	1.4±0.1
Heat resisitance	80°C,2h	----	No flow
	150°C,2h	No flow	----
Low temperature flexibility	-20°C,2h circleΦ20mm Rods	----	No crack
	-35°C,2h circleΦ20mm Rods	No crack	----
Water resistance	Soak 24h	No mud	----
	Soak 240h	----	Overrall expansion,no fragments

 

Items		Index
		Common	Slow-swelling
Anti-water pressure,Mpa≥		1.5	2.5
Water welling rate in specified time/%	4h	200-250	----
	24h	----	200-250
	48h
	72h
	96h
	120h
	144h
Maximum water swelling ratio/% ≥		400	300
Density,g/cm3		1.6±0.1	1.4±0.1
Heat resisitance	80°C,2h	----	No flow
	150°C,2h	No flow	----
Low temperature flexibility	-20°C,2h circleΦ20mm Rods	----	No crack
	-35°C,2h circleΦ20mm Rods	No crack	----
Water resistance	Soak 24h	No mud	----
	Soak 240h	----	Overrall expansion,no fragments

Installation and Notes
1. To clear the debris, dross and dust, etc before installing the waterstop and keep the base dry;
2. The waterstop must be fixed with nails or adhesive on the surface of the central position, make sure not fall off;
3. The overlap joints of the waterstop must be parallel connection and form a closed, not leaving the breakpoint;
4. The storage and transport of the waterstop avoid moisture, extrusion, deformation;
5. The package box cantains detailed installation instructions, the construction must follow the instruct.

Packaging & Shipping

Packing: 50 metres per piece.

 

Company Profile

Our Advantages

FAQ

Q1. Can you provide OEM & ODM service?
A:  Yes.

Q2. What's your Trading Term ,Payment Term?
A: 1)EXW,FOB, CFR or CIF.
   2)T/T or L/C at sight by production order,accept Western Union or Paypal for sample freight.

Q3. Is the samples free?
A: Sample is Free, but the freight will refund you when your big order.

Q4. What's your MOQ?
A: 1 PC is available to our company,but the freight cost for unit price will be very high.

Q5. Can we print our own logo or brand on the products?
A: Welcome, you can send your own design of LOGO, we can make new mold and print or label any LOGO for you.

Q6. What's your nearby sea port?
A: Shanghai or Ningbo port in China.

Q7. What's carrier in your plastic industry?
A: PE,PP,PBT,PET,PA,PS,PC,PVC,ABS,EVA,TPE,TPU,TPR,TPV,PLA etc.

Q8. What's material of your rubber?
A: HNBR,NBR,NR,FKM,EPDM,SIR,PU,ACM,FVMQ,SBR,CR,IIR and so on.