Laboratory Tests of the Selected Mechanical Properties of the Soil Stabilized With a Road Binder

Górszczyk, Jarosław

doi:10.5593/sgem2017/12/s02.063

Cited by 3 publications

(6 citation statements)

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“…According to the results, the indirect tensile strength is equal to about 10% of the value of compressive strength. This result is consistent with the results presented in the literature [40,41].…”

Section: Application Of Dic System For Testing Deformation Of Roadsupporting

confidence: 94%

“…Geosynthetics wide-width tensile tests were carried out according to the standard [42]. For other road materials the modulus of elasticity, Poisson’s ratio, compressive strength, and indirect tensile strength were determined according to the standards and procedures [40,41,43,44,45,46,47,48].…”

Section: Application Of Dic System For Testing Deformation Of Roadmentioning

confidence: 99%

“…In many cases, the insufficient tensile strength in bending of stone slabs causes a premature failure of a road pavement (see Figure 16). Therefore, the obtained parameters can be used in both theoretical and numerical analyses as well as during the design of pavement structures [40,41].…”

Section: Application Of Dic System For Testing Deformation Of Roadmentioning

confidence: 99%

“…Laboratory stand using the DIC method for the indirect tensile test: ( a ) HMA sample; ( b ) soil sample [40,41]. …”

Section: Figurementioning

confidence: 99%

“…Soil samples: ( a ) View of the samples prepared for the compressive test; ( b ) virtual grid on the surface of the sample [40]. …”

Section: Figurementioning

confidence: 99%

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Application of Digital Image Correlation (DIC) Method for Road Material Testing

2019

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The theoretical part of the paper presents the framework of the digital image correlation (DIC) method as well as its advantages and limitations. The DIC technique that can be used in static and fatigue tests is a non-contact, non-interferometric optical method for measuring the surface deformation of structural elements, and material samples. In the experimental part of the paper, the implementation of the DIC method for the selected laboratory tests of building materials is described. The results of the tests on the samples of the materials used in road construction, i.e., asphalt mixtures (HMA), stone, soil stabilized with a hydraulic binder, and geosynthetics are discussed. The conducted research pointed out the possibilities of using the DIC method to evaluate the deformation of road materials in laboratory tests, taking into account their specificity. The variety of samples of tested material allowed to indicate the areas in which the DIC method and the algorithms used to evaluate the results give a significant advantage compared to tensometric measurement methods.

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Section: Application Of Dic System For Testing Deformation Of Roadsupporting

confidence: 94%

Section: Application Of Dic System For Testing Deformation Of Roadmentioning

confidence: 99%

Section: Application Of Dic System For Testing Deformation Of Roadmentioning

confidence: 99%

“…Laboratory stand using the DIC method for the indirect tensile test: ( a ) HMA sample; ( b ) soil sample [40,41]. …”

Section: Figurementioning

confidence: 99%

“…Soil samples: ( a ) View of the samples prepared for the compressive test; ( b ) virtual grid on the surface of the sample [40]. …”

Section: Figurementioning

confidence: 99%

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Application of Digital Image Correlation (DIC) Method for Road Material Testing

2019

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Assessment of pavement deflection under vehicle loads using a 3D-DIC system in the field

Núñez-Temes

Bastos

Arza-García

et al. 2022

Sci Rep

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This study aims to introduce the use of 3D-digital image correlation (DIC) to the in situ testing of pavements and to support the development of techniques for a rapid evaluation of the conservation status of existing roads. Little research was found on this topic. The passage of a car wheel on an asphalt pavement was adopted as a case study. The DIC measurements were compared to those gathered by contact sensors. From a qualitative point of view, the DIC measurements captured the realistic shape of a deflection basin. From a quantitative point of view, the deflection values provided by the DIC system had a mean error of 0.015 mm and a standard deviation of 0.011 mm. At the moment of highest load, these errors had a mean value and standard deviation of − 0.016 mm and 0.021 mm, respectively. Thus, to improve the accuracy of the system, we propose modifying the camera support, speckle pattern, and control of natural light.

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