A kind of environment-friendly modified pitch and preparation method thereof

The invention provides a kind of environment-friendly modified pitch and preparation method thereof, the modified pitch includes the component of following parts by weight, 100 parts of pitch, 3~10 parts of forsterite powder, 1~5 part of yttrium aluminium garnet fibers, 1~5 part of styrene-acrylic resin, 0.5~2.2 part of dibenzalacetone, 0.2~1.4 part of hydroquinones, 2~7 parts of polyisobutene succinimide.Environment-friendly modified pitch of the present invention, while bitumen properties are obviously improved, have the multiple environment effect such as flame-retardant smoke inhibition, hot-mix emission reduction concurrently, meet low-carbon environment-friendly, safe and reliable green traffic construction requirements, the sustainable development of society can be promoted.It is pollution-free in production preparation process and the raw material sources used are extensively, with good economic benefit.