| 摘要 |
In methods of preparing asphalt including asphalt/elastomeric polymer compositions, it has been discovered that the emission or evolution of H<SUB>2</SUB>S can be reduced by adding certain H<SUB>2</SUB>S scavengers to the asphalt mixture, but that not every known H<SUB>2</SUB>S scavenger can be effective in this method. Particularly helpful H<SUB>2</SUB>S scavengers include inorganic metal salts. Suitable inorganic or organic metal salt H<SUB>2</SUB>S scavengers include, but are not necessarily limited to those where the metal of the salt is zinc, cadmium, mercury, copper, silver, nickel, platinum, iron, or magnesium, and mixtures of these salts. |
