UTW直道足尺试验路结构性能评价

通过足尺试验对UTW试验路进行了结构性能试验和评价。通过分析试验路弯沉变化及动态模量,对路面整体承载能力进行了分析和评价;通过裂缝观察及结构性能评价对方案进行了比较分析。从试验结果及评价结果来看,不同方面的评价结果具有很好的一致性,各方案结构性能从好到差的排序依次为:方案三>方案四>方案五。评价结果也揭示出,基础强度和恰当的结构组合对路面的使用性能影响显著。

Evaluation of Structure Capability of UTW Full-Scale Testing Road

In this paper structure performance tests and evaluations of UTW (ultra-thin white topping) are made on a Full-Scale Testing Road. With the analysis of the deflection variation and dynamic model of the testing road, analysis and evaluation of the integral carrying performance of the pavement are carried through. Some comparisons are also done by the observations of pavement cracking and by the structure capability evaluations. Both test and evaluation results reveal that the evaluation results from different sides are consistent, and the structure performance of different mix types from goodness to not good enough is Mix Type 3 > Type 4> Type 5. The evaluation results open that base strength and proper structure composition have remarkable effects on the pavement service performance.