Model NO.: Diameter range 150mm-2500mm
Material: Rubber with Canvas
Shape: Round, Rectangular, Square, Octagon
Usage Place: Tunnel/Culvert/ Precast Beam Construction
Business Type: Factory Manufacturer
Specification: As Drawing Requests
HS Code: 5522233
Usage: Concrete Pipe Making
Color: Black
Certificate: ISO9000
Urgent Order: Yes
Trademark: JianFeng
Origin: Hebei, China
Contact information
Sales Manager: Miss Anna Lee
Mobile Phone: +86-15132836877
Tel: 86-318-5106277
Fax: 86-0318-5106277
Website: www.prolianz.com
Company: Hengshui Jianfeng Engineering Rubber Co., LTD.
Description of bridge air core mold
Inflatable Rubber Mandrel, also called inflatable rubber core mold or
inflatable rubber formwork, is similar to a marine airbag, but different in
usage - that 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 mandrels shorten the pipe foundation,
increase span as well as provide a simpler and safer construction.
Shapes of bridge air core mold
bridge air core mold can be divided into many kinds according to its shape:
round, rectangle, octagon, hexagon, trapezoidal and so on. And round
inflatable rubber mandrel and octagonal inflatable rubber mandrel are
common used in most projects.
Features of bridge air core mold
1.High strength to withstand the pressure of concrete when the mandrel is
inflated.
2.Quality synthetic rubber and natural rubber materials make the mandrel
durable, long lasting, flexible and elastic.
3.Save materials, time and efforts.
4.Soft to fold, curly, contract and store.
5.Various shapes including round, oval, rectangular, vaulted, trapezoidal,
etc.
6.Great resistance to aging and bulge.
7.Wide applicable temperature ranging form 10°C to 90°C.
8.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.
Details of bridge air core mold
Diameter: 150mm to 28000mm.
Total length: 0.8m to 35m.
Other specifications are also available upon customers' requests.
Properties of bridge air core mold
| Items | Index |
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 3
mm, 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 bridge air core mold: the normal types of ibridge air core
mold are one fabric two rubber and two fabric three rubber. What's more,
we can also produce other types of inflatable rubber mandrel according to
customers' requirements.
Contact us if you need more details on Bridge Air Core Mold. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Inflatable Core Mold、Construction Core Mold. If these products fail to match your need, please contact us and we would like to provide relevant information.
Product Categories : Inflatable Rubber Mandrel
