Blown bitumen grades or Oxidized Bitumen are produced by passing air through the penetration grades. This process gives the bitumen more rubbery properties than its original formula and they are simply harder bitumen. Hard bitumen under controlled temperature conditions is widely used as an anti-slip layer compound in the piling industry, for manufacture of roofing felts, the roofing and waterproofing industries, for sound dampening felts and under carriage sealant in the automotive industry, electric cable joint protection, joint filling compound, sealant compound and many others. Also used in sealing saw cuts and joints where expected movements are minimum. It is also used in the manufacturing of bituminous marine mastic for the oil & gas pipeline joints.
|BITUMEN R 85/25||BITUMEN R 85/40||BITUMEN R 95/25||BITUMEN R 95/40||BITUMEN R 115/15|
|Relative Density at 25 deg C, g/ml||1.00-1.06||1.00-1.05||1.00-1.05||1.00-1.05||1.00-1.06||ASTM D70|
|Softening Point (Ring and Ball), dec C||80-90||80-90||90-100||90-100||110-120||ASTM D36|
|Penetration at 25 °C, 0.1 mm||20-30||35-45||20-30||35-45||42663||ASTM D5|
|Flash Point ( Cleveland open Cup), °C, Min||200||200||200||200||200||ASTM D92|
|Loss on heating % by mass||0.2||0.5||0.2||0.5||0.2||ASTM D6|
|Ductility at 25 °C cm, min||2||2||2||2||2||ASTM D113|
|Solubility in toluene % wt min||99||99||99||99||99||EN12592:2000|
Ms. Rupa Alamelu
P.O BOX – 49012, SHARJAH HAMARIYAH FREE ZONE – U.A.E, Sharjah, , United Arab EmiratesView Mobile No.