Inflatable Rubber Culvert Balloon for Structure Weight Reduction
Inflatable rubber culvert balloon, also called inflatable rubber core mold or inflatable rubber formwork, which is to form cavities for large reinforced concrete structures including bridge, tunnels, roof, stake, roof board column, beam, building construction, irrigation works and water conservancy projects, etc. In this way, 20% weight of building structure is reduced than those with solid concrete structures. Meanwhile, inflatable rubber culvert balloon shorten the pipe foundation, increase span as well as provide a simpler and safer construction.
Inflatable rubber culvert balloon can be divided into many kinds according to its shape: round, rectangle, octagon, hexagon, trapezoidal and so on. And round inflatable culvert balloon and octagonal inflatable rubber culvert balloon are common used in most projects.
Inflatable rubber culvert balloon
- High strength to withstand the pressure of concrete when the mandrel is inflated.
- Quality synthetic rubber and natural rubber materials make the mandrel durable, long lasting, flexible and elastic.
- Save materials, time and efforts.
- Soft to fold, curly, contract and store.
- Various shapes including round, oval, rectangular, vaulted, trapezoidal, etc.
- Great resistance to aging and bulge.
- Wide applicable temperature ranging form 10°C to 90°C.
Shapes of inflatable rubber culvert balloon
- Easy and convenient to operate - only place mandrels into negative reinforcement cage, inflate them to appropriate work pressure, pour concrete and deflate the mandrels until the concrete is solid, then pull the capsule out.
- Diameter: 9mm to 28000mm.
- Total length: 0.8m to 35m.
- Other specifications are also available upon customers’ requests.
|Thickness of rubber and fabric, mm||2.4mm - 15mm|
|Hardness(Shore A)||65 ± 5|
|Adhesive tension of rubber and fabric, N/25mm||≥8|
|Tensile strength, MPa||≥12|
|Elongation at break, %||≥350|
|300% Stretch set length, MPa||6|
|Stretch for deformation ratio||≤20 % (Prevent distortion)|
|Suitable temperature, °C||-10 to 80|
|Appearance||No cracks, no bubbles on the surface, the length of impurities trace is not more than 3mm, the depth is not more than 1.5mm, and quantity of the trace is not more than one. The deformation is not more than 2mm.|
The structure of inflatable rubber culvert balloon : the normal types of inflatable rubber culvert balloon are one fabric two rubber and two fabric three rubber. What’s more, we can also produce other types of inflatable rubber culvert balloon according to customers’ requirements.
Inflatable rubber culvert balloon structure.
The inflatable rubber culvert balloon products have many fittings, such as air value, pressure gauge, glue and tire piece.
Inflatable rubber culvert balloon fittings.
Mounted inflatable rubber culvert balloon before concreting.
Inflatable rubber culvert balloon form cavities after concreting.
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Zaoqiang Dacheng Rubber Co., Ltd.
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