In road construction, an Expansion Joint Filler Board is a compressible, non-extruding material used to fill gaps between concrete slabs to accommodate expansion and contraction due to temperature changes, traffic load, or shrinkage.
Heres a practical overview for your use:
Its a preformed board placed in expansion joints of rigid pavements, runways, bridges, or concrete roads, to:
Absorb expansion during heat
Prevent cracking or blowouts
Maintain joint integrity
| Feature | Description |
|---|---|
| Material | Bitumen impregnated fiberboard (standard), also available in polymer-based, EVA, or closed-cell foam |
| Thickness | 12mm, 18mm, 25mm (common for roads) |
| Height | Matches slab depth (e.g., 100300mm) |
| Length | Typically 1m or 2m boards |
| Density | 300500 kg/m for bitumen boards |
| Compression Recovery | >85% (good quality boards) |
| Water Absorption | Low (especially for bituminous type) |
Bitumen Impregnated Fiber Board (BIFB)
Traditional, economical, semi-rigid
Moisture and chemical resistant
Cross-linked Polyethylene (XLPE) / EVA Foam
Lightweight, flexible, and rot-proof
Excellent rebound
Resin or Rubber-Based Boards
High-end, durable, heavy-duty applications
Cut to required width and insert into joint gap before concreting.
Ensure full depth and vertical alignment.
Leave top 510mm recess for joint sealant (like polysulfide or bitumen).
Secure board to prevent movement during pour.
Withstands compressive stress from concrete expansion
Ensures clean joint edges
Prevents water ingress
Easy to install and cut
Complies with IRC and MoRTH standards (India) or ASTM D1751 (USA)
Let me know if you need a technical spec sheet, BOQ format, or help choosing between material types based on climate or project type.






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