Waste polymer base asphalt comprehensively modifying agent and the preparation method and application thereof

Waste polymer base asphalt comprehensively modifying agent and the preparation method and application thereof

  • CN 104,861,676 B
  • Filed: 06/11/2015
  • Issued: 11/27/2018
  • Est. Priority Date: 06/11/2015
  • Status: Active Grant
First Claim
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1. a kind of method that the comprehensively modifying agent of waste polymer base asphalt prepares modified asphalt mixture, feature existIn, including:

  • 1) fiber and carbon black are premixed, is uniformly dispersed, filler is made;

    2) filler, thermoplastic macromolecule resin, the rubber powder being discarded or recycled, thermoplastic elastomer (TPE) are mixed according to a certain percentageIt closes uniform;

    3) mixture that step

         2) obtains mixed at 110 DEG C -185 DEG C, melted, mixing process, and make its reaction, madeAt impartial substance, extrudate is then made by nozzle;

    4) above-mentioned extrudate is subjected to cooling, solidified, recycled high-speed rotating blade, be made into the granular of 3-5mm, must dripGreen mixed material modifier;

    5) waste polymer base asphalt comprehensively modifying agent described in step

         4) is directly launched into the mineral aggregate of heating, andIt is mixed with, pitch and miberal powder is then added, is mixed evenly again, modified asphalt mixture is made;

    The additional amount of the thermoplastic macromolecule resin is 30~60 parts by weight, and the additional amount for the rubber powder being discarded or recycled is 20~50 parts by weight, the additional amount of thermoplastic elastomer (TPE) are 10~20 parts by weight, and the additional amount of filler is 5.5~16.5 weightPart, wherein the mass ratio of fiber and carbon black is 5~15:

    0.5~1.5.

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