Tar Felt
Tar Felt is produced by saturating center core of hessian with straight grade bitumen and coated with specially formulated bituminous compound on both sides. Thereafter, Mica sand is spread over bituminous surface to prevent inter layer sticking of felt during rolling and storage. It conforms to IS:1322:1993, Type 3 Grade 1.
...morePure Expansion Joint Filler Board
Road construction needs lot of consideration, including the harmful effects of climate on the products used in constructing them. Extreme climates may change the characteristics of these product and cause harm to the road structure. These chemicals and products can expand or contract. For example concrete slabs vary during winter and summer. In tropical countries where climates are extreme it can cause more hazardous effect to transportation. In order to correct this expansion and contraction and maintain road surface evenness, expansion joints are provided in between the butting slab. Commonly for runways and highways, both traverse and longitudinal joints for expansion are provided. Their width is generally 12mm, 18 mm or 25mm. These are inserted between regular intervals and at intersection with other constructions. An expansion joint filler board is a soft board made out of cane fiber. These cane fiber boards are water resistant and bitumen imbued. They are available as boards and strips. These are known for their characteristics of resisting compression.
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