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A 12mm bitumen expansion joint filler board is another variation of expansion joint filler used in construction to accommodate the movement between concrete slabs. This size is often chosen for smaller expansion gaps or where a thinner filler is adequate. It serves the same purpose as thicker options, but it is designed for more specific applications where the joint space is less pronounced.

An 25mm bitumen expansion joint filler board is another size option for filling expansion joints in concrete structures. The 25mm version, like the 18mm filler board is designed to absorb the movement between concrete slabs caused by temperature fluctuations, settling, or stress, preventing cracking or other damage.

A 50mm bitumen expansion joint filler board is typically used in construction and civil engineering applications to fill the expansion joints in concrete structures. The expansion joints are spaces between two sections of concrete that allow for movement due to temperature changes, settling, or other forces. The filler board helps to absorb and manage these movements while maintaining the integrity of the structure.