Oxidized Bitumen 75/35 Definition
Oxidized Bitumen 75/35 (in another word, blown asphalt 75/35, oxidized Asphalt 75/35) is Semi Solid grade of pure petroleum bitumen manufactured by air-blowing through an asphalt flux. Special physical properties of its grade can be used in different applications in the construction business. asphalt 75/35 is based on petroleum bitumen which is made by blowing bitumen 60/70 by very hot air. The numbers relate to the midpoint of the material’s softening point and penetration respectively. The softening point value is the degrees Centigrade measured by the Ring and Ball method as determined by ASTM D36. The penetration value is in 1/10 mm as determined by IP49 or ASTM -D5. SBI 75/35 has high softening point, high flash point and it is highly stable during melting. This product, utilized in the industrial sector,exhibits predominantly “solid” characteristics at ambient temperatures and provides SUPERIOR adhesive and waterproofing qualities when applied hot and allowed to cool than Oxidized Bitumen.
SBI company guaranty the quality of SBI Oxidized asphalt 75/35 with the arrangement of the international inspectors to check quality and quantity of the asphalt 75/35 during the loading to the vessel and controlling the production by QC by batch test report before shipping. SBI Company guarantees the quality to meet with ASTM.
Oxidized Bitumen 75/35 Applications
Oxidized asphalt 75/35 uses in the chemical, fuel, paints, lacquers, varnishes, paper-pulp-board, textile processing, road construction, pavement, crack seal and repairmen, civil works, roofing, construction industries; sealing and insulating buildings, adhesive, construction materials additive, dust-binding, insulating and impregnating agent, make rubber and plastic products. The oxidized asphalt 75/35 products are for paving. also used in asphalt-based paints for corrosion protection of metals, in lining public works structures, adhesives in electrical laminates, base for synthetic turf; typical uses for asphalt 75/35 used also for water-proof application and corrosion resistance for pipe coating, Portland cement pavement, hydraulic applications, paint manufacturing, caulking, mastics, and damp proofing. Asphalt 75/35 is using insulation and isolation bitumen membrane sheet. Also, Car undercoating Automobile industry is specially required for Blown Asphalt. Vehicle undercoating material is based on Bitumen . Bitumen provides excellent waterproof, dustproof and noise proof for automobile undercoating.
Oxidized asphalt 75/35 should be heated double temperature against the softening point to be able to have flow and viscosity. To use asphalt 75/35, surfaces must be dry, clean and free of loose particles, formwork, curing products, irregularities, slurry , etc.
Blown Asphalt 75/35 CHARACTERISTICS
|Specific gravity @ 25/25 C||ASTM D70||(Kg / m3)||1.05 approx.|
|Penetration @ 25 ° c||ASTM D5||mm / 10||30/40|
|Softening point ° c||ASTM D36||° C||70/80|
|Loss on heating (wt)%||ASTM D6||Wt.%||0.2 max|
|Flashpoint c||ASTM D92||° C||250 min|
|Solubility is CS2 (wt)%||ASTM D4||Wt.%||99.5 max|
|Spot test||AASHTO 102||—||Negative|