High-adhesiveness 90A asphalt and preparation method thereof

The high-adhesiveness 90A asphalt comprises the following raw materials in parts by weight: 10-100 parts of Kraft-based crude oil, 0-90 parts of other imported crude oil, 0.3-0.5 part of a tackifier and 0.2-0.4 part of a modifier, and the sum of the weight parts of the Kraft-based crude oil and the other imported crude oil is 100. The high-adhesiveness 90A asphalt has excellent adhesiveness, and an asphalt pavement paved by the high-adhesiveness 90A asphalt has relatively good water damage resistance and long service life. The invention further provides a preparation method of the high-adhesiveness 90A asphalt, the process is flexible, and the preparation difficulty is low. 一种高黏附性90A沥青，包括以下重量份数的原料：卡夫基原油10～100份，其它进口原油0～90份，增黏剂0.3～0.5份，改性剂0.2～0.4份，其中卡夫基原油和其它进口原油重量份之和为100份。该高黏附性90A沥青具有优异的黏附性，用其铺筑的沥青路面具有较好的抗水损害性，路面使用寿命长。还提供了该高黏附性90A沥青的制备方法，工艺灵活，制备难度低。