| Customization: | Available |
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| After-sales Service: | Installation Guide |
| Warranty: | 2 Years After Leaving The Factory |
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Rubber bridge expansion joints are mainly made of rubber, steel plate and angle iron. Steel plates are set in the rubber bridge expansion to strengthen the bearing capacity and they can slide freely along the angle iron to meet the expansion deformation of main grid.
Because of the excellent sealability and shock-absorbing effect of rubber, rubber bridge expansion joints do well in proofing water and reducing noise. The elasticity of rubber plates and its shear deformation in the telescopic channel helps the whole device to realize telescopic motion.
Rubber expansion joint installation
Feature:
| Item Properties Materials |
Neoprene Rubber (Apply to -25ºC~ 60ºC areas) |
Natural Rubber (Apply to -35ºC~ 60ºC areas) |
Neoprene Rubber (Apply to -40ºC~ 60ºC areas) |
||
| Hardness (IRHD) | 60±5 | 60±5 | 60±5 | ||
| Tensile Strength (Mpa) | >=15 | >=16 | >=14 | ||
| Elongation at break (%) | >= 400 | >= 400 | >= 350 | ||
| Brittleness temperature (ºC) | <=-40 | <=-50 | <=-60 | ||
| Compression set constant (Room temperature ×24h) |
<=20 | <=20 | <=20 | ||
| Resistant Ozone aging (25~50pphm) 20% Elongation 40ºC×96h |
No cracks | No cracks | No cracks | ||
| Hot air aging test (Compared with the previous unaged value occurred biggest change ) | Test conditions(ºC×h) | 70ºC×96h | 70ºC×96h | 70ºC×96h | |
| Tensile Strength (%) | ±15 | ±15 | ±10 | ||
| Elongation at break (%) | ±25 | ±25 | ±20 | ||
| Hardness change(IRHD) | 0~+10 | -5~+10 | 0~+10 | ||
| Rubber and steel bonding peel strength(kN/m) | >7 | >7 | >7 | ||
| Salt water(23ºC×14d, 4% Concentration) | Volume Change (%) | <=+10 | <=+10 | <=+10 | |
| Hardness Change(IRHD) | <=+10 | <=+10 | <=+10 | ||
| oil resistance(No.1 Standard Oil, 23ºC×168h) | Volume Change (%) | -5~+10 | <+45 | <+45 | |
| Hardness Change(IRHD) | -10~+5 | <-25 | <-25 | ||
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