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This article reports on a study undertaken to evaluate methods that can be used for determining the deformation modulus of a base course of road pavement. The authors use the increasing need for strengthening road pavement structures in the developing country of Lithuania as the motivation to look for new alternatives in structural pavement layers and to carry out research on road pavement structures in their real operational conditions. They assess the strength of measuring devices that use static and dynamic methods on a base course of experimental road section. The four measuring devices investigated are: static beam Strassentest, and dynamic devices ZORN ZSG 02, light weight deflectometer Prima 100, and falling weight deflectometer Dynatest 8000. The results showed that the measurements achieved with all devices are suitable for determining the deformation modulus on a base course of pavement structure. Additional research would be necessary to select the most suitable measuring method for each structural pavement layer.

Research and Evaluation of Methods for Determining Deformation Modulus of A Base Course of Road Pavement