Bridge Expansion Joint

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Bridge Road Expansion Joint Series

Product Item : OVTB-11025
Category： Bridge Expansion Joint
After-sale Service Online technical support
Chemical Composition steel
Application Bridge Road Tunnel
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Product Description:

Deformed steel can be moulded as your request. Please send us your drawing

Materials

Steel grade Q235 or Q345.
EPDM sealing strip.

Physical Properties of Rubber Strip Seal

Physical Properties		CR	NR	EPDM
Hardness		50±5	50±5	50±5
Tensile Strength/Mpa ≥		15	16	14
Elongation at Break/% ≥		400	400	350
brittleness temperature(℃) ≤		-40	-50	-60
EN Compression Set(70℃*24h)/% ≤		15	30	25
Ozon Resistance(20% elongation, 40℃*96h)		No Crack	No Crack	No Crack
Air Oven Aging(Max change, comparing with datas without aging)	Test Conditions(℃*h)	70*96	70*96	70*96
	Tensile Strength(%)	±15	±15	±15
	Elongation at Break/%	±25	±25	±20
	Hardness Change	0~+10	-5~+10	0~+10
Peel Strength between Rubber and Steel(kN/m)﹥		7	7	7
Resistance to Salt Solution(23℃*14d, concentraction 4%)	Volume Change(%)≤	10	10	10
Resistance to Salt Solution(23℃*14d, concentraction 4%)	Hardness Change ≤	10	10	10
Oil Resistance(ASTM1,23℃*168h)	Volume Change	-5~+10	<+45	<+45
Oil Resistance(ASTM1,23℃*168h)	Hardness Change	-10~+5	<-25	<-25

Design Features

1.A number of profiled steels at different dimensions and weight available;
2.Steel profiles are integrated fabrication to ensure consistent strength; Yield strength of steel profiles all reaches 345 MPa;
3.Extrusion cavity mechanically locks rubber seals for watertight purpose;
4.Movement can reach up to 80 mm;
5.Movement and rotation can occur in three axes;
6.Joint system can be cast into the concrete slab;
7.Installation and maintenance convenient;
8.Design and manufacture standard:AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS,Section 14.5
9.Custom design available for unique projects.