| Model: | dia600 dia900 |
|---|---|
| Brand: | BLESS |
| Origin: | Made In China |
| Category: | Construction & Decoration / Other Construction Materials |
| Label: | culvert balloon , rubber balloon , inflated balloon |
| Price: |
¥100
/ pc
|
| Min. Order: | 1 pc |
| Last Online:22 Jun, 2017 |
CULVERT BALLOON
Culvert balloon is used for making concrete pre-casting formwork projects in culvert bridge construction.
pneumatic tubular form, culvert balloon used for making concrete pipe
Material:
Culvert balloon is made from natural rubber and fabric. In general, it is formed by three layers(1+2=2layers of rubber and 1 layer fabric): inner layer is high strength synthetic polymer fabric withstanding the force from concrete and air pressure. Outer layer is vulcanized rubber. Rubber hardness is about 65Shore A to keep its excellent features, such as soft, durable, wear-resistance.
If your concrete slab is thicker, it should be manufactured in 2layers of fabric and 3layers of rubber(2+3).
Standard specification
Technical Parameters
|
Items |
Index |
|
Thickness, mm |
3.2±0.2(1+2) 5.0±0.2(2+3) |
|
Hardness(Shore A) |
65±5 |
|
Adhesive tension of rubber and fabric,N/25mm |
≥8 |
|
Tensile strength, M pa |
≥12 |
|
Elongation at break, % |
≥350 |
|
300% Stretch set length, M Pa |
6 |
|
Stretch for deformation ratio |
≤20 %(Prevent distortion) |
|
Suitable temperature,°C |
-10~80 |
|
Appearance |
No cracks, no bubbles on the surface;
|
Working Pressure
|
Diameter(mm) |
Pressure(Mpa) |
|
150 |
0.08 |
|
160~190 |
0.08 |
|
200~220 |
0.07 |
|
230 |
0.06 |
|
240~280 |
0.05 |
|
300~370 |
0.045 |
|
380~480 |
0.04 |
|
500~520 |
0.035 |
|
550~600 |
0.03 |
|
620~680 |
0.025 |
|
700 |
0.02 |
