A T Type Strip Seal Expansion Joint is a specialized expansion joint system used mainly in bridges, flyovers, and elevated roads, designed to absorb structural movements caused by temperature changes, shrinkage, creep, and traffic loads while also preventing water, debris, or chemical infiltration into the substructure.
T-Shape Edge Beams (Steel)
Typically made of structural steel conforming to IS or ASTM standards.
Cast or embedded in concrete at the expansion joint edge.
The top of the T acts as the support for vehicular loads, while the vertical leg holds the elastomeric strip.
Elastomeric Strip Seal (EPDM / Neoprene)
Fits into the cavity formed between the T-beams.
Flexible and watertight, allowing movement in multiple directions.
Resistant to UV, ozone, oil, chemicals, and temperature fluctuations.
Easily replaceable without removing steel components.
Anchoring System
Consists of bolts or welds to fix the T-beams to the deck.
Ensures the joint is locked in place during thermal or mechanical movement.
| Parameter | Typical Range |
|---|---|
| Movement Capacity | 40 mm 80 mm (can be custom-made) |
| Elastomer Material | EPDM / Neoprene Rubber |
| Steel Grade | ASTM A36 / IS 2062 |
| Load Bearing | Up to Class 70R (IRC), heavy traffic |
| Joint Width | 50 mm 80 mm (at rest) |
| Water Tightness | 100% watertight when installed correctly |
Surface must be clean, level, and dry.
T-beams are aligned with required expansion gap and anchored into concrete.
Elastomeric seal is compressed and inserted into the beam channels using manual or pneumatic tools.
Joint must be tested for water tightness and movement post-installation.
Watertight & Durable
Low Maintenance
High Load Bearing Capacity
Quick Replacement of Rubber Seal
Suitable for Longitudinal and Transverse Movements
Highway & Expressway Bridges
Railway Overpasses
Flyovers
Parking Decks
Large Concrete Slab Transitions
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