Oxidized Bitumen

Oxidized bitumen

Oxidized bitumen (also known as blown bitumen) is manufactured by blowing air through bitumen. To be more specific, in the air blowing method of bitumen production, the air in 190 to 200 c is blown to the substance and the oxidized or air blown asphalt is produced. Due to the air blowing process, oxidized bitumen comes with more rubbery properties. Among unique specifications of blown bitumen are flexibility, increased durability, and resistance to water.

Blown bitumen grades broadly used as an anti-slip layer compound in the industry. It is also applicable to roofing and waterproofing industries, piling industry, sound dampening, the automotive industry, and so on. As oxidized bitumen is hard, its softening point is much higher than regular bitumen. Also, its Penetration Index is higher than a regular one.

Bitumen 75/30
Specification of oxidized bitumen 75/30
Bitumen 75/30 Specification Unit Test method
Specific gravity @25/25 °C 1.05 approx. (Kg/m3) ASTM D70
Penetration @25 °C 30/40 mm/10 ASTM D5
Softening point °C 70/80 °C ASTM D36
Ductility @25 °C 1.5 min Cm ASTM D113
Loss on heating (wt) % 0.2 max Wt. % ASTM D6
Flashpoint °C 260 min °C ASTM D92
Solubility is CS2 (wt) % 99 min Wt. % ASTM D4
Spot test Negative A.A.S.H.O.T 102
Bitumen 85/25
Specification of oxidized bitumen 85/25
Bitumen 85/25 Specification Unit Test method
Specific gravity @25/25 °C 1.05 approx. (Kg/m3) ASTM D70
Penetration @25 °C 20/30 mm/10 ASTM D5
Softening point °C 80/90 °C ASTM D36
Ductility @25 °C 3 min Cm ASTM D113
Loss on heating (wt) % 0.2 max Wt. % ASTM D6
Flashpoint °C 250 min °C ASTM D92
Solubility is CS2 (wt) % 99.5 max Wt. % ASTM D4
Spot test Negative A.A.S.H.O.T 102
Bitumen 85/40
Specification of oxidized bitumen 85/40
Bitumen 85/40 Specification Unit Test method
Specific gravity @25/25 °C 1.05 approx. (Kg/m3) ASTM D70
Penetration @25 °C 35/40 mm/10 ASTM D5
Softening point °C 80/90 °C ASTM D36
Ductility @25 °C 3 Cm ASTM D113
Loss on heating (wt) % 0.2 max Wt. % ASTM D6
Flashpoint °C 260 min °C ASTM D92
Solubility is CS2 (wt) % 99 min Wt. % ASTM D4
Spot test Negative A.A.S.H.O.T 102
Bitumen 90/40
Specification of oxidized bitumen 90/40
Bitumen 90/40 Specification Unit Test method
Specific gravity @25/25 °C 1.05 approx. (Kg/m3) ASTM D70
Penetration @25 °C 35/45 mm/10 ASTM D5
Softening point °C 85/95 °C ASTM D36
Ductility @25 °C 5.5min Cm ASTM D113
Loss on heating (wt) % 0.2 max Wt. % ASTM D6
Flashpoint °C 250 min °C ASTM D92
Solubility is CS2 (wt) % 99.5 max Wt. % ASTM D4
Spot test Negative A.A.S.H.O.T 102
Bitumen 95/25
Specification of oxidized bitumen 95/25
Bitumen 95/25 Specification Unit Test method
Specific gravity @25/25 °C 1.05 approx. (Kg/m3) ASTM D70
Penetration @25 °C 20/30 mm/10 ASTM D5
Softening point °C 90/100 °C ASTM D36
Loss on heating (wt) % 0.2 max Wt. % ASTM D6
Flashpoint °C 250 min °C ASTM D92
Solubility is CS2 (wt) % 99.5 max Wt. % ASTM D4
Spot test Negative A.A.S.H.O.T 102
Bitumen 105/35
Specification of oxidized bitumen 105/35
Bitumen 105/35 Specification Unit Test method
Specific gravity @25/25 °C 1.05 approx. (Kg/m3) ASTM D70
Penetration @25 °C 30/40 mm/10 ASTM D5
Softening point °C 100/110 °C ASTM D36
Loss on heating (wt) % 0.2 max Wt. % ASTM D6
Flashpoint °C 250 min °C ASTM D92
Solubility is CS2 (wt) % 99.5 max Wt. % ASTM D4
Spot test Negative A.A.S.H.O.T 102
Bitumen 115/15
Specification of oxidized bitumen 115/15
Bitumen 115/15 Specification Unit Test method
Specific gravity @25/25 °C 1.05 approx. (Kg/m3) ASTM D70
Penetration @25 °C 10/20 mm/10 ASTM D5
Softening point °C 110/120 °C ASTM D36
Ductility @25 °C 1.5 min Cm ASTM D113
Loss on heating (wt) % 0.2 max Wt. % ASTM D6
Flashpoint °C 250 min °C ASTM D92
Solubility is CS2 (wt) % 99.5 max Wt. % ASTM D4
Spot test Negative A.A.S.H.O.T 102