Rigid pavements have widespread use, e.g, in motorways and airports, due to their excellent properties such as high bearing capacity and long lifetime. However, when rigid pavements fail it is often due to bad load transfer efficiency (LTE) at its joints. Traditional methods of measuring LTE can be time consuming. Here, we study the possibility of measuring LTE using a moving load with the aim of achieving higher productivity. An experiment simulating Rolling Weight Deflectometer (RWD) measurements on a joint was carried out to gain understanding and confidence that can guide the analysis of real RWD data. Continuous data from measurements across a joint allows for determination of not only the LTE but also additional parameters characterizing the pavement and the joint. A semi-analytical model was implemented for simulating the pavement response next to a joint and used for interpretation and verification of the experimental data. The results show promise for the use of moving loads for rapid evaluation of joints.

Deep P., Andersen M.B., Rasmussen So., Thom N., Marradi A., Lo Presti D. (2020). Evaluation of Load transfer in rigid pavements by Rolling wheel deflectometer and Falling weight deflectometer. TRANSPORTATION RESEARCH PROCEDIA, 45, 376-383 [10.1016/j.trpro.2020.03.029].

Evaluation of Load transfer in rigid pavements by Rolling wheel deflectometer and Falling weight deflectometer

Lo Presti D.
2020-01-01

Abstract

Rigid pavements have widespread use, e.g, in motorways and airports, due to their excellent properties such as high bearing capacity and long lifetime. However, when rigid pavements fail it is often due to bad load transfer efficiency (LTE) at its joints. Traditional methods of measuring LTE can be time consuming. Here, we study the possibility of measuring LTE using a moving load with the aim of achieving higher productivity. An experiment simulating Rolling Weight Deflectometer (RWD) measurements on a joint was carried out to gain understanding and confidence that can guide the analysis of real RWD data. Continuous data from measurements across a joint allows for determination of not only the LTE but also additional parameters characterizing the pavement and the joint. A semi-analytical model was implemented for simulating the pavement response next to a joint and used for interpretation and verification of the experimental data. The results show promise for the use of moving loads for rapid evaluation of joints.
2020
AIIT 2nd International Congress on Transport Infrastructure and Systems in a changing world (TIS ROMA 2019), 23rd-24th September 2019, Rome, Italy
Rome
23rd-24th September 2019
Deep P., Andersen M.B., Rasmussen So., Thom N., Marradi A., Lo Presti D. (2020). Evaluation of Load transfer in rigid pavements by Rolling wheel deflectometer and Falling weight deflectometer. TRANSPORTATION RESEARCH PROCEDIA, 45, 376-383 [10.1016/j.trpro.2020.03.029].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/596821
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