Steel Big Long Finger Expansion Joint for Bridge

Features1,A simplistic design with no moving parts
2,Designed to accommodate any bridge deck,
3,Expansion joint movement
4,A smooth transition for vehicular traffic resulting in low noise
5,Designed for ease of maintenance with a small crew and minimal lane closure time,
6,Can be supplied with integral self-cleaning closed cell foam seals or a durable neoprene trough to channel water away from the structure
7,Designed to be replaced without the need for excavation of the anchorage system,
8,Can be supplied in three foot lengths to permit ease of installation without the need for heavy lifting equipment
9,Can be fabricated to meet bridge deck skews,
10,Lasts the life of the bridge deck under normal circumstances
11,Can be supplied with post tensioned anchors into concrete headers, cast into concrete blockouts, or bolted to existing steel members
Physical Properties of Rubber Strip SealPhysical PropertiesCRNREPDMHardness50±550±550±5Tensile Strength/Mpa ≥151614Elongation at Break/% ≥400400350brittleness temperature(ºC) ≤-40-50-60EN Compression Set(70ºC*24h)/% ≤153025Ozon Resistance(20% elongation, 40ºC*96h)No CrackNo CrackNo Crack
Air Oven Aging(Max change, comparing with
datas without aging)Test Conditions(ºC*h)70*9670*9670*96Tensile Strength(%)±15±15±15Elongation at Break/% ±25±25±20Hardness Change0~+10-5~+100~+10Peel Strength between Rubber and Steel(kN/m)>777
Resistance to Salt Solution(23ºC*14d, concentraction 4%)Volume Change(%)≤101010Hardness Change≤101010
Oil Resistance(ASTM1,23ºC*168h)Volume Change-5~+10<+45<+45Hardness Change-10~+5<-25<-25
MaterialsEdge steel, grade Q235 or Q345.
Finger plates, grade Q345.
Drainage channel, EPDM, PVC or stainless steel, depending on customer preference.
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