Joints are required in concrete roads, runways, floor and roof slabs of building to relieve stresses developed due to temperature shrinkage , crap, relaxation ,vibration etc. To provide an even surface these joints must be filled and at the same time the materials used for filling should permit expansion and contraction of concrete. SUPER BOARD Bituminous Expansion Pad is a strip of compressible material used to form and fill the expansion joints in the structure. It permits the joints to expand without developing stresses. It consists of a preformed strip of fibre board of cellular nature securely bounded together and uniformly saturated with bitumen.
AREA OF APPLICATION :
• Filling structural expansion and structural separation joints in block and in situ concrete construction including screed floors, motorways, roads, runways, pedestrian areas, bridges, curbs, basements, retaining walls, site slabs, subways and other structures etc.
• Filling all types of expansion joints in piers and lateral supports like abutments.
• Various other flat works and concrete floors