blown asphalt

blown asphalt

[¦blōn ¦as‚fȯlt]
(materials)
Asphalt which is treated or heated with air or steam within a blowing still at relatively high temperature.

blown asphalt

Asphalt that is treated by blowing air through it at elevated temperature to give it characteristics desired for certain special uses such as roofing, pipe coating, undersealing portland cement concrete pavements, membrane envelopes, and hydraulic applications.
References in periodicals archive ?
The refinery will also be equipped with a vacuum gas oil hydrotreater unit of 36,000bpsd capacity, a 31,500bpsd fluid catalytic cracking unit, an 11,500bpsd polynaphtha unit, a sulphur recovery unit, and a blown asphalt unit.