MODIFICATION IMPROVES ASPHALT PROPERTIES

Reaction of asphalt with maleic anhydride or sulfur trioxide and neutralization with alkaline earth oxides or carbonates produces asphalt ionomers with improved properties for road and building construction and for extending filled thermoplastic resins. Magnesium maleate asphalt shows good breaking load retention with sand but not with traprock. The reverse is true for magnesium sulfonate asphalt. It is concluded that both sulfonation and maleic anhydride treatment may be needed in actual road-building composites. Asphalt ionomers may also be used in caulkis, sealants, adhesives, shingles, coatings and roofing membranes, felts, and papers. Good preliminary results have been achieved with 10 to 20% loadings of asphalt ionomer extenders in talc-filled polypropylene.

  • Corporate Authors:

    American Chemical Society

    1155 16th Street, NW
    Washington, DC  United States  20036
  • Publication Date: 1978-9-18

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00183701
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 3 1978 12:00AM