Road petroleum asphalt and preparation method thereof

The invention discloses road petroleum asphalt and a preparation method thereof. The road petroleum asphalt comprises the following raw material components in parts by weight: 100 parts of a pretreatment component; 10 to 80 parts of modified reduced slag; wherein the modified reduced slag comprises the following raw material components in parts by weight: 100 parts of inferior reduced slag; and 0.5 to 6 parts of a modifier. According to the invention, the inferior reduced slag which is difficult to treat is used as a raw material, and an asphalt product meeting the requirement of Kazakstein road asphalt BND 60/90 is obtained. 本发明公开了一种道路石油沥青及其制备方法。本发明道路石油沥青，按重量份计，包括以下原料组分：预处理组分：100份；改性减渣：10～80份；其中改性减渣，按重量计，包括以下原料组分：劣质减渣：100份；改性剂：0.5～6份。本发明以难处理的劣质减渣为原料，得到了满足哈萨克斯坦道路沥青BND 60/90要求的沥青产品。