Bitumens Expansion Joint Filler Board

Bitumens Expansion Joint Filler Board 
We are well-known manufacturers of Bitumens Expansion Joint Filler Board.These are used in the construction of runways, roads and buildings involving the costing of concrete slab form provision must be made to accomodate the expansion and contraction which occurs with seasonal variations in temperature.In tropical countries these variations may be considerable. It is of utmost importance to use correct joint filling and sealing compounds to preserve the life and eveness of the surface. Normal practise in runway & road construction is to provide both longitudinol and transvers expansion joints of 12mm, 18mm. or 25mm width between butting slabs of reinforced concrete of designed inervals, and at inersections with other construciton I.e.
Sizes Available : 2'x4'x4 or '4' x' x 4' in 12mm/1 8mm/25mm thickness.TECHNICAL ASPECTSThe expansion joints between the slabs must fulfill the following functions:


Permit free movement of the concrete slabs in expansion & contracion.
Provide a water proof seal which will at all times prevent the percolation of surface water downwards, thereby adversely affecting the bearing properties of the subrade.
Resist entry of foreign matter in to the joint space thereby avoiding inerference with the free movement of the slabs under expansion & thus preventing damage to the slab.


In order to fulfil these functions, the materials comprising the expansion joints must be compressable , resilient & nonextrudable.RANGE OF OTHER PRODUCTS


Sealing compound as per 1834
Felt as per 1322/93
Primer as per is 3384
Emulsion etc