石油沥青的来源有两种:一种是天然沥青,另一种是氧化石油沥青。作为一种石油产品,沥青远远晚于汽油、煤油和柴油。但沥青作为大自然的恩赐,被人类认识和利用,已经有几千年的历史。早在远古时代,古埃及人就用含有沥青的香料保存了尸体,成为今天的木乃伊。据我国史料记载,三国时期,诸葛亮在战争中就使用 There are two sources of petroleum bitumen: one is a natural bitumen, the other is a petroleum bitumen. As a petroleum product, bitumen is far behind gasoline, kerosene and diesel. However, bitumen, as a gift of nature, has been recognized and used by mankind for thousands of years. As early as ancient times, the ancient Egyptians preserved the body with spices containing bitumen and became today’s mummy. According to our historical records, during the Three Kingdoms, Zhuge Liang was used in the war