沥青作为一种重要的战略资源，在国民经济建设中发挥着重要作用。近年来，国家为促进国民经济建设的发展，加大了公路建设的投资力度，仅1998年就投资1800亿元，至u2000年间年内）国家对公路建设累计投资达5000亿元。国家公路建设的大发展在给国产沥青提供空前发展机遇的同时， As a kind of important strategic resource, asphalt plays an important role in the national economic construction. In recent years, in order to promote the development of the national economy, the state has increased the investment in highway construction. Only in 1998, the country invested 180 billion yuan to reach a total of 5,000 billion yuan in highway construction. The great development of national highway construction in the asphalt to provide unprecedented opportunities for development at the same time,