Gold Member Since 2014
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Haider Construction Engineering Materials Factory

Bridge Expansion Joint, Roadway Bridge Expansion Joint, Highway Bridge Expansion Joint manufacturer / supplier in China, offering Good Quality Bridge Expansion Joint, Bridge Joint with Big Movement, Bridge Expansion Joint and so on.

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Good Quality Bridge Expansion Joint

FOB Price: US $30 / Meter
Min. Order: 10 Meters
Min. Order FOB Price
10 Meters US $30/ Meter
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Production Capacity: 1, 000, 000 Meters/Year
Transport Package: as Request
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: ZL, GL, SF, JZSF, SCF, TSSF
  • Material: Carbon Steel
  • Trademark: Haider
  • Origin: China
  • Connection: Welding
  • Movement: 0-2000mm
  • Specification: AASHTO
  • HS Code: 7308100000
Product Description
Modular Expansion Joint, Bridge Expansion Joint

Modular Expansion Joint Systems have gained overwhelming worldwide acceptance for accommodating and sealing large joint movements on bridge structures. By incorporating the results of recent research activities, each joint system is designed to provide watertight, fatigue resistant, long-term, maintenance-free performance.

Design Principles

Fatigue Resistant
Modular expansion joint assemblies are subjected to millions of high dynamic stress cycles due to passing vehicle loads. Recognizing the significance of these dynamic loads on the long-term performance of expansion joint systems, Haider became the first China company to introduce fatigue-resistant design principles to modular expansion joint assemblies. It is strongly recommended that a specification which includes fatigue design provisions be included in the contract documents.

Watertight Integrity
Each Modular Expansion Joint System not only bridges the joint gap but also protects the structure from premature corrosion. Design of the strip seal sealing element is based on compression of the neoprene seal lug into the gland recess of the centerbeam and edge beam. This mechanically-locked neoprene seal not only provides excellent watertight characteristics but also achieves high pullout resistance.
Good Quality Bridge Expansion Joint

Standard  JT/T4-2004 BS5400 Section 9.2 
Rubber Natural Rubber Neoprene
CR
Natural
Rubber
Neoprene
CR
Hardness(IRHD)  60±5 60±5 50±5/60±5/70±5
Tensile Strength (M Pa)≥
 
18 17 17 15.5
Ultimate Elongation (%)≥
 
450 400 450/400/350 400/350/300
Compression Set 70 o C×22h 70 o C×22h 100 o C×22h
<30 <15 <30 <35
Heat Resistance Test Condition 70 o C×168h 100 o C×70h 70 o C×168h 100 o C×48h
Change in Hardness -5,+10 0,+10 <10 <15
(IRHD)
Rate of Tensile Strength Reduction(%) <15 <15
Rate of Ultimate <20 <40 <20 <40
Elongation Reduction
(%)
Ozone Resistance 25~50pphm,20% strain 25~50pphm,20% strain
40 o C×96h 30 o C×96h
 No Cracks No Cracks
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