Basic Info.
Product Description
Rubber Bridge Expansion Joint
Reinforced Neoprene Expansion Joint for CE/SGS Crtification
Rubber Bridge Expansion Joint is used in Highway bridge decks, Service ramps, Multi-storey car parks and so on. Rubber Bridge Expansion Joint is used to prevent buildings or bridges appear some cracks because of climate change.
Feature:
It makes bridge smooth and seamless, and it's good for preserving, cleaning and moving snow.
The structure is simple, no need to have special stretch frame and anchoring steel bar. Construction is convenient and fast.
It could absorb all kinds of deformations and shaking. And its damping property is high and it's good for bridge shock absorption.
Best sealing and waterproof property and anti-acid-base and corrosion.
Low cost of construction, durable and remarkable economic benefit and social benefit.
Propertities
| 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 | ||