タイトルまたは説明

Asphalt, oxidized (blown or air-refined) (CAS number *******4): Asphalt treated by blowing air through it at elevated temperatures to produce physical properties required for the industrial use of the final product. Oxidized asphalts are used in roofing operations, pipe coating, undersealing for Portland cement concrete pavements, hydraulic applications, membrane envelopes, some paving-grade mixes [AI ***0b], and the manufacture of paints [Speight ***2].

Blowing still: A closed-process vessel fitted at its base with a sparger and used in the air-blowing process to make many types of roofing asphalt.

Coating asphalt: An air-blown or oxidized asphalt used to manufacture roofing materials used in a variety of roofing systems such as asphalt shingles, polymer-modified bitumen roofing, reinforcing and underlayment felts, and roll roofing products.

The majority of penetration grade bitumen's are used in road construction. The overall trend is towards adopting harder bitumen that produce asphalts which have superior properties to those manufactured using the softer grades.



Designation is by penetration range eg *0/*0 pen bitumen has a penetration that ranges from *0 to *0 decimillimetres (dmm).

*0/*0  *0/*5  *0/*0  *0/*0 *0/**0 **0/**0 **0/**0 **0/**0

 Emulsion Bitumen, Emulsion Asphalt

Emulsion Bitumen , Emulsion Asphalt E-Grade binders have been specifically developed to enable easy emulsification of bitumen. 



The use of these binders enables the production of:cationic emulsions; anionic emulsions; non-ionic emulsions; clay-stabilised emulsions.