01472357

Component

The mechanistic evaluation of pavement utilizing full scale test data is an important component to the study of pavement behavior. This study focuses on the use of concrete strain gages (CSG) and crack location data to evaluate the effect of localized cracking on the stress-based load transfer efficiency (LTE (S)) of transverse doweled pavement joints. Concrete strain gage data generated from the full scale testing carried out by the Federal Aviation Administration at the National Airport Pavement Test Facility has been analyzed in this study. Load Transfer Efficiency was determined from paired concrete strain gages for the test vehicle moving in opposite directions at two specific locations, resulting in four distinct cases of LTE (S). It was found that LTE (S) varies as loading progresses on the test sections, especially after cracking near the joint has occurred on the slabs. Additionally, peak strains from gages located at the joint can be used to evaluate the behavior of LTE (S) during the formation of cracks on the slab, in particular the case where the cracks have formed close to the doweled joint but are not yet visible on the surface.

This paper was sponsored by TRB committee AV070 Aircraft/Airport Compatibility.

01470560

13-1353

English

27p

2013

Transportation Research Board 92nd Annual Meeting

Digital/other

Figures; References; Tables

Landing fields; Load tests; Load transfer; Pavement cracking; Pavement joints; Rigid pavements; Strain gages

Aviation; Pavements; I22: Design of Pavements, Railways and Guideways

Transportation Research Board Annual Meeting 2013 Paper #13-1353

TRIS, TRB, ATRI

Feb 5 2013 12:21PM