沥青路面压实度无损检测技术与应用研究

Research on nondestructive testing technology and application of asphalt pavement compactness

为了更好的应用无损检测方法,提高沥青路面压实质量监测水平,根据无核密度仪、探地雷达法和车载检测法的技术原理,通过分析它们的技术特点,明确了各方法的使用条件和应用场合。无核密度仪操作简单,实时性较好,可用于沥青路面压实度测量和离析判别;探地雷达自动化程度高,可用于沥青层的压实度、厚度以及缺陷探测;车载检测技术与压路机械相结合,可用于压实施工过程,实现压实度在线检测。

In order to improve the quality of asphalt pavement,nondestructive testing method is used.According to the technical principles of nuclear free densitometer,ground penetrating radar method and vehicle detection method,through the analysis of their technical characteristics,the use conditions and application occasions of each method are defined.The non-nuclear densitometer has simple operation and good real-time performance,and can be used for asphalt pavement compactness measurement and segregation discrimination.Ground penetrating radar has high degree of automation,which can be used to detect the compactness,thickness and defects of asphalt layer.The vehicle detection technology combined with road roller machinery can be used in the compaction construction process to realize the on-line detection of compactness.