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China, Chinese Haider Aashto Certified Bridge Expansion Joint for Reliable Road Use1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Pipe FittingsExpansion JointAashto Certified JointBridge Expansion Joint
Haider Construction Engineering Materials Factory
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Product Description Explore the cutting-edge solutions in Bridge Expansion Joints with our premium Modular Expansion Joint technology.The Haider expansion joints are expertly crafted to include both the single rail type and the modular type, ensuring versatility and superior performance.Our state-of-the-art expansion joint system is designed to facilitate seamless bridge deck movements while maintaining an impeccably smooth and watertight riding surface for enhanced reliability. Meticulously engineered for enduring longevity surpassing that of the bridge deck itself, our joints boast a robust steel support system. They are crafted to combine exceptional strength to withstand traffic impacts with unparalleled flexibility to adapt to various deck movements, supporting a movement range of 80 to 640 mm.Our expansion joint system is meticulously optimized for this specific movement range, making it the ideal choice for the vast majority of bridges, offering both technical precision and economic efficiency.Featuring a streamlined structure where resilient rubber is strategically positioned between steel rails, our system adeptly accommodates thermal expansion and contraction or impact loads, leveraging the inherent flexibility of the rubber material.Enhanced with a support box bearing, our innovative design transforms the conventional assembled rail into a monolithic rail, significantly boosting durability, stability under cumulative fatigue, and offering superior waterproofing properties.Standard JT/T4-2004BS5400 Section 9.2 RubberNatural RubberNeopreneCRNaturalRubberNeopreneCRHardness(IRHD) 60±560±550±5/60±5/70±5Tensile Strength (M Pa)≥ 18171715.5Ultimate Elongation (%)≥ 450400450/400/350400/350/300Compression Set70 o C×22h70 o C×22h100 o C×22h<30<15<30<35Heat ResistanceTest Condition70 o C×168h100 o C×70h70 o C×168h100 o C×48hChange in Hardness-5,+100,+10<10<15(IRHD)Rate of Tensile Strength Reduction(%)<15<15Rate of Ultimate<20<40<20<40Elongation Reduction(%)Ozone Resistance25~50pphm,20% strain25~50pphm,20% strain40 o C×96h30 o C×96h No CracksNo Cracks
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