Bitumen Impregnated Expansion Joint Filler Boards

Product Description

Construction of concrete roads, runways, floor and roof slabs of buildings, involves casting of concrete in slab form, which leads to construction joints. Provision must be made to accommodate the expansion and contraction at these joints which occurs with seasonal variations in temperature.Our Bitumen Impregnated Expansion Joint Fillers Boards display excellent resistance to compression, with outstanding recovery characteristics.Provision of these boards in the joints permits free movement of the concrete slabs. This prevents damage to the slabs besides providing waterproofing and resisting entry of foreign matter into the joints.

It is a low densityhigh quality fibre board which is cellular in nature, securely bonded together and uniformly saturated with Bituminous Compound. Impregnation with Bituminous Compound makes it durable and water proof. Cellular nature provides compressible properties and ability to recover after compression load is released; conforming to Indian as well as international technical specifications.It bears normal structural movements without breaking or cracking. It ensures sealing of joints as no gap exists between the joint spaces. The fillers are environment friendly as opposed to the environment destroying thermocol /plastic expansion joint filler.

Features:
 

■  Meets worldwide technical specifications
    - Indian Standard IS: ***8
    - American Standard ASTM: D.***1
    - British Standard BS: ***2
■  Standard Bitumen content *6%. Other possibilities upon bulk orders

■  Excellent resiliency
■  Unaffected by temperature extremes
■  Excellent dimensional tolerances
■  Non extruding
■  Compression to *0% thickness in the initial state:- Recovery is *0/*4%
■  Weathering and compression to *0% thickness: - Recovery is *0/*6%. Extrusion: No effect (0.*5 mm)
■  Low moisture absorption due to bitumen impregnation.

■  Cuts cleanly