摘要
为了分析公路路基材料对路面使用性能的影响,文中对水泥稳定碎石和沥青混凝土两种路基材料的使用性能(抗压强度、弯沉值、压实度)进行了试验分析。结果表明,水泥稳定碎石混合料无侧限抗压强度的平均值为3.8 MPa,变异系数为1.6%,即数据差异性较小,可靠性高,具有较高的抗压强度和承载力,可摊铺在重载路段;沥青混合料类型的路基较为平整且施工快速,但抗压强度较弱,其抗变形能力较强,可应用于大交通流量的路段。
In order to analyze the influence of highway subgrade materials on pavement performance,the paper conducted test analysis on the performance of cement stabilized gravel and asphalt concrete subgrade materials(compressive strength,bending value,compaction degree).The results show that the average unconfined compressive strength of the cement stabilized crushed stone mixture is 3.8 MPa,and the coefficient of variation is 1.6%,that is,the data difference is small,the reliability is high,the compressive strength and bearing capacity are high,and the cement stabilized crushed stone mixture can be spread on the heavy-duty road section.The asphalt mixed beam type roadbed is relatively flat and fast in construction,but its compressive strength is weak,but its deformation resistance is strong,and it can be applied to the section with large traffic flow.
作者
邓超
Deng Chao(Sichuan Qinba Expressway Co.Ltd.,Chengdu,Sichuan 610041)
关键词
公路工程
水泥稳定碎石
沥青混凝土
路面性能
Highway engineering
Cement stabilized crushed stone
Asphalt concrete
Pavement performance
