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将无核密度仪(PQI)和钻芯后表干法测试密度(压实度)进行了对比试验分析,验证了PQI检测现场热再生沥青混凝土路面密度的准确性和有效性。在利用PQI和红外热像仪联合进行的摊铺温度离析对再生沥青混合料压实效果研究中,基于PQI测试结果,得出了一定温度下碾压遍数与再生沥青混合料压实度的关系。研究表明,快速、无损、精度高的PQI在沥青混凝土路面现场再生施工质量控制中将有较好的应用前景。
The test of density of non-nuclear density meter (PQI) and dry-core test density (compaction degree) of drill core is comparatively analyzed, which verifies the veracity and validity of PQI on-site thermal recycling asphalt concrete density. Based on the results of PQI test, the compaction effect of reclaimed asphalt mixtures at a certain temperature was obtained in the study of compaction effect of reclaimed asphalt mixture by paving temperature analysis using PQI and infrared thermal imager. relationship. The research shows that PQI with fast, non-destructive and high precision will have a good application prospect in the site construction quality control of asphalt concrete pavement.