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沥青碎石因其施工工艺简单,造价低,高温抗车辙性能好,表面粗糙度高,在农村公路建设中被广泛应用,但其水稳定性差、低温性能差、耐久性差,运营一、二年后易产生松散、坑槽等病害,如何提高沥青碎石路面的耐久性,是广大农村公路建设者关心的重要课题。在县道六安至三河工程中成功引用多级嵌挤密实级配理论,从而改善沥青碎石组成结构,提高沥青碎石路用性能,提高其耐久性。
Because of its simple construction technology, low cost, high rutting resistance at high temperature and high surface roughness, asphalt gravel is widely used in rural road construction, but its water stability is poor, its low temperature performance is poor, its durability is poor, and its operation is one or two years After prone to loose, pit and other diseases, how to improve the durability of asphalt pavement, is the majority of rural road builders are concerned about the important issue. In the County Road, Lu’an to Sanhe project successfully quoted multi-level intrusion dense grading theory, thereby improving the composition of asphalt and gravel, improve the road performance of asphalt pavement and improve its durability.