BITUMEN.... ??? Binding material present in asphalt. Hydrocarbon obtained from distillation of crude petroleum. Black or brown in colour & obtained in solid n semi solid state. Contains 87%-carbon,11%-hydrogen,2%oxygen. USES.... !!! Damp proof course Water proofing of roof, tanks,basements,swimming pools,etc... Preparing paints & roofing felts Filling cracks in masonry structures,for stopping leakages DIFFERENT FORMS OF BITUMEN.... Bitumen emulsion: Liquid containing bitumen to a great extent in aqueous medium. Blown bitumen: Used as roofing &damp-proofing felts,manufacture of pipe asphalt &joint fillers,as heat insulating material. Cut-back bitumen: Can be applied cold as a bitumen paint. Plastic bitumen: Used for filling cracks in masonry structures,for stopping leakages etc. DIFFERENT TYPES OF BITUMEN FELT.... Fibre-based bitumen felt Asbestos-fibre-based bitumen felt Glass-fibre-based felt Hi...