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随着国民经济的快速发展,辽宁省以高速公路、国道主干线为主骨架的各等级公路建设进入了一个崭新的时期。在公路总里程不断增长的同时,怎样搞好公路养护工作也摆在我们面前。近年来的实践证明:一方面,公路建设急需多种新技术、新材料、新工艺来代替原有的路用材料和施工工艺,改善和提高路面的使用性能,延长道路的使用寿命;另一方面,公路养护工作也急切需要多种加快养护速度、提高养护质量、降低养护成本的新材料、新技术。就辽宁而言,“八五”期间修建公路路面基本上都是上贯下拌的路面结构,已经进入大、中修期,现有黑色路面2万多公里,每年进入大修期限的沥青路面达2000多公里,如果还按3厘米罩面方式进行养护,一年就需6～10亿元资
With the rapid development of the national economy, all levels of highway construction in Liaoning Province, which are mainly composed of expressways and national trunk roads, have entered a brand-new period. In the continuous growth of the total mileage of the highway at the same time, how to do a good job in road maintenance work before us. In recent years, practice has proved that, on the one hand, many new technologies, new materials and new technologies are urgently needed for highway construction to replace the existing road materials and construction technology to improve and enhance the serviceability of pavements and prolong the service life of roads; In respect of road maintenance, there is also an urgent need for new materials and new technologies that speed up conservation, improve the quality of conservation and reduce the cost of conservation. In terms of Liaoning, the construction of road pavement during the “1985” period is basically a pavement structure that runs on the understory. It has entered the period of major and intermediate repairs. The current black pavement has more than 20,000 kilometers of asphalt that enters the overhaul period every year Pavement up to more than 2000 kilometers, if also according to 3 cm cover the way of conservation, one year will need 6 to 1 billion yuan