Published: 2023-12-30

Non-contact method for measuring deformation in testing selected materials used in road construction

Jarosław Górszczyk , Konrad Malicki

Abstract

High requirements for materials used in road construction make it necessary to use modern methods for assessing the mechanical parameters of these materials. One such method is the Digital Image Correlation (DIC) method. The paper presents the possibilities of using the non-contact DIC method to measure deformation in testing selected mechanical properties of asphalt mixture samples and a composite made of a polymer matrix reinforced with a glass fiber grid (fiber reinforced polymer – FRP). The paper shows deformation analysis of all the observed surfaces of the tested samples. It was found that in terms of static tensile strength, the performance of the FRP tape is similar to the behavior of geogrids used to strengthen road pavement structures. The discussed results of own research and research described in the literature confirmed the usefulness of the DIC method in testing materials used in civil engineering.

Keywords:

asphalt mixtures, mechanical properties testing, digital image correlation method (DIC), fiber reinforced polymer (FRP)

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Górszczyk, J., & Malicki, K. (2023). Non-contact method for measuring deformation in testing selected materials used in road construction. Roads and Bridges - Drogi I Mosty, 22(4), 423–432. https://doi.org/10.7409/RABDIM.023.024

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