What makes polymer-based fillers different from bituminous fillers?

Polymer fillers are highly resilient (often recovering >90% of their thickness) and do not extrude or bulge out of the joint when the concrete expands.

Which code specifies the testing methods for these fillers?

IS 10566 covers the methods of test for preformed expansion joint fillers.

Where are these fillers typically used?

In concrete highway pavements, airport runways, bridge decks, and liquid-retaining structures.

IS 1838

: 2000

Preformed Fillers for Expansion Joints in Concrete Pavements and Structures(non-extruding and resilient type) Part 3 Polymer Based

CurrentSpecializedSpecificationMaterials Science · Building Construction Practices incl. Painting, Varnishing

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This standard specifies the physical requirements, dimensions, and conformity criteria for non-extruding, resilient, polymer-based preformed fillers used in expansion joints of concrete pavements and structures.

Preformed Fillers for Expansion Joints in Concrete Pavements and Structures(non-extruding and resilient type) Part 3 Polymer Based

Quick Reference Values

Minimum recovery after 50% compression90%

Maximum extrusion at 50% compression3.0 mm

Maximum water absorption by volume5%

Typical thickness tolerance± 1.5 mm

Practical Notes

Polymer-based fillers are highly preferred over traditional bituminous fillers in critical structures due to their excellent recovery and lack of extrusion under pressure.

Always leave sufficient depth above the preformed filler during installation to accommodate the hot or cold applied joint sealant.