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Haider Construction Engineering Materials Factory

Modular Expansion Joint, Rail Expansion Joint, Bridge Expansion Joint manufacturer / supplier in China, offering Expansion Joint for Bridge Construction, Building Expansion Joint, Floor Expansion Joint, Bridge Joint with Big Movement and so on.

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Expansion Joint for Bridge Construction

FOB Price: Get Latest Price
Min. Order: 10 Meters
Port: Shanghai, China
Production Capacity: 1, 000, 000 Meters/Year
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: ZL, GL, SF, JZSF, SCF, TSSF
  • Type: Modular
  • Surface Treatment: Galvanizing, Painting
  • Certification: CE, ISO14001, ISO9001
  • Application: Bridge
  • Edge Beam: Z,E,F Type
  • Transport Package: as Request
  • Origin: China
  • Connection: Welding
  • Material: S355jr,St52
  • Customized: Customized
  • Warranty: 5 Years
  • Movement: 320mm
  • Trademark: Haider
  • Specification: D320
  • HS Code: 7308100000
Product Description
Expansion Joint for Bridge Construction

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.

Expansion Joint for Bridge Construction

 
Standard JT/T4-2004BS5400 Section 9.2 
RubberNatural RubberNeoprene
CR
Natural
Rubber
Neoprene
CR
Hardness(IRHD) 60±560±550±5/60±5/70±5
Tensile Strength (M Pa)≥18171715.5
Ultimate Elongation (%)≥450400450/400/350400/350/300
Compression Set70oC×22h70oC×22h100oC×22h
<30<15<30<35
Heat ResistanceTest Condition70oC×168h100oC×70h70oC×168h100oC×48h
Change in Hardness-5,+100,+10<10<15
(IRHD)
Rate of Tensile Strength Reduction(%)<15<15
Rate of Ultimate<20<40<20<40
Elongation Reduction
(%)
Ozone Resistance25~50pphm,20% strain25~50pphm,20% strain
40oC×96h30oC×96h
 No CracksNo Cracks
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