ATDM natural rock asphalt, produced from bituminous rocks and it is a change after more than millions of years of natural mineral precipitation , under pressure and geological changes in the form of mining Having broken from the fine granular powder , light brown , where the asphalt content of about 80% to 85% , the rest are kind of limestone minerals. Quality rock asphalt can be used as a better modifier.
I. ATMD natural rock asphalt characteristics
High softening point can significantly improve the high temperature stability of asphalt pavement, improve the ability of pavement rutting. Nitrogen content of nitrogen element in the form of functional groups , can increase the viscosity of bitumen , enhanced oxidation resistance , adhesion and resistance make the cut off of the aggregate has been significantly improved, improved resistance to water damage ability asphalt pavement . Its molecular weight, when fused with the base asphalt at high temperature and small molecular , combined into a "semi- polymerization" effect.
It has very strong anti-microbial erosion on the surface protective film formed naturally tight light amount , more durable surface to improve the speed of slowing down the aging and prolong the service life of the road .
natural rock asphalt is wax-free , high wax can damage the quality of asphalt .
natural rock asphalt manufacturing process is simple , easy construction.
by the modified base asphalt Buton rocks makes more stable performance .
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