Stanovenie miery zhutnenia asfaltových vrstiev deštruktívnymi a nedeštruktívnymi metódami a ich porovnanie

Abstract

The aim of this thesis is to determine the degree of compaction of asphalt layers using destructive and non-destructive methods, and compare these two methods. The theoretical part presents theoretical knowledge about compaction of asphalt mix. The practical section of this thesis focuses on determination of volume weight using both destructive and non-destructive methods. It was examined whether there is a relation between measurements using Troxler Model 3440 Gauge and Troxler Model 2701-B Gauge, PaveTrackerTM for the purpose of the TPA workers. Two sets for evaluation were prepared. First one was formed for an abradable layer ACO 11+ with thickness of 50 mm; second one for a bedding layer LV with thickness of 80 mm. Subsequently, the average deviations, accuracies, averages of measurements and correlation coefficients in the place of drill holes were identified. However, no relation between the Troxler devices and drill holes was not found. The correlation coefficients were not greater than R=0,4457. The main objective of the thesis was to provide a multi-criteria comparison of destructive and non-destructive methods for measurement of volume weights. The criteria for evaluation were: results, price, time, and other costs. The criteria were applied in this sequence. The main finding arising from the thesis is exclusion of the usage of the non-destructive method for measurement of volume weight using the Troxler Model 2701-B, PaveTrackerTM Plus for control of the degree of compaction.