Aashto Bridge Expansion Joint by Haider - Engineered for Roads

• Customization: Available
• Connection: Welding
• Type: Modular
• Model NO.: D160
• Material: S355jr,St52
• Surface Treatment: Galvanizing, Painting
• Customized: Customized
• Certification: CE, ISO14001, ISO9001
• Warranty: 5 Years
• Application: Bridge
• Transport Package: as Request
• Specification: AASHTO
• Trademark: Haider
• Origin: China
• HS Code: 7308100000
• Production Capacity: 1, 000, 000 Meters/Year

Product Description

Discover our top-of-the-line Bridge Expansion Joint, featuring both Modular Expansion Joint designs for superior performance and reliability.

At Haider, our expansion joints feature an exquisite range, including both the single rail type and the versatile modular type, ensuring a perfect fit for diverse infrastructure needs.

Our state-of-the-art expansion joint system is expertly crafted to permit seamless bridge deck movements while guaranteeing an impeccably smooth and watertight riding surface, ensuring safety and longevity.

Meticulously engineered for durability that surpasses even the bridge deck itself, our joints derive their longevity from a robust steel support system. They blend resilience to withstand traffic impacts with exceptional flexibility to adapt to various deck movements, accommodating ranges from 80 to 640 mm.

Technically and economically perfected, our expansion joint system is tailored for a movement range that makes it the unparalleled choice for the vast majority of bridges, promising unparalleled efficiency and reliability.

Featuring a straightforward yet ingenious design where rubber is interposed between steel rails, our system adapts effortlessly to expansion and contraction caused by temperature changes or impact loads, thanks to the dynamic properties of the rubber.

Enhanced with a support box bearing, the conventional assembled rail design is evolved into a monolithic rail, yielding remarkable improvements in durability, cumulative fatigue resistance, and outstanding waterproofing characteristics.

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