Comparative Seismic Laboratory and Non-Contact Field Measurements of Asphalt Concrete
2016 (English)In: 2016 Structural Materials Technology Paper Summaries / [ed] American Society for Nondestructive Testing, 2016Conference paper (Refereed)
Non-contact acoustic field measurements are performed on a newly built highway to characterize the real part of the dynamicmodulus of the asphalt concrete (AC) top layer. The in situ measurements are performed using an array of 48 micro-electromechanicalsystem (MEMS) sensors. Cores extracted from the field measurement positions are then examined in a laboratory usingseismic modal testing for comparison. The laboratory testing allows master curves to be constructed to characterize the AC over awide temperature and frequency range. It is demonstrated that the real parts of the dynamic moduli are consistent at the fieldtemperatures using the two test methods. The in situ measurements are also shown to be highly repeatable. The presentedcomparative study indicates a possible application for assuring the quality of AC based on mechanical properties using fast noncontactin situ measurements.
Place, publisher, year, edition, pages
IdentifiersURN: urn:nbn:se:kth:diva-194360OAI: oai:DiVA.org:kth-194360DiVA: diva2:1039630
NDE/NDT hfor Highway and Bridges: Structural Materials Technology
QC 201610252016-10-242016-10-242016-10-25Bibliographically approved