Determination of Surface Roughness Parameters by Optical Profilometry and Sand Patch Test

Čairović, Đorđe; Zlámal, Martin; Štěpánek, Petr; Trčka, Tomáš; Škarvada, Pavel; Macků, Robert

doi:10.4028/www.scientific.net/ssp.259.15

Cited by 5 publications

(2 citation statements)

References 1 publication

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“…Čairović et al compared a laser triangulation system and the sand patch method for assessing surface roughness parameters [14]. For their experiments, the authors used five concrete specimens with roughness ranging from very smooth to rough and illustrated the correlation of both methods in a diagram.…”

Section: State Of the Art And Related Work 21 Recent Advances In Roug...mentioning

confidence: 99%

Quality Assessment of a Novel Camera-Based Measurement System for Roughness Determination of Concrete Surfaces—Accuracy Evaluation and Validation

Özcan¹,

Blankenbach²

2022

Sensors

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The roughness of a surface is a decisive parameter of a material. In rehabilitation of concrete structures, for example, it significantly affects the adhesion between the coating material and the base concrete. However, the standard measurement procedure in construction suffers from considerable disadvantages, which leads to the demand for more sophisticated methods. In a research project, we, therefore, developed a novel camera-based measurement system, which is customized to meet the prevailing requirements for practical use on construction sites. In this article, we provide an overview of the measurement system and present comprehensive examinations to evaluate the accuracy and to provide evidence of validity. First, we examined the accuracy of the system by empirically assessing both trueness and precision of measurements using three concrete specimens. Trueness was determined by comparing the surface measurements to those of a highly accurate microscope system, revealing RMSE values of around 40–50 µm. Precision, on the other hand, was assessed considering the scattering of the roughness measurements under repeat conditions, which led to standard deviations of less than 6 µm. Furthermore, to proof validity, a comparative study was conducted based on sixteen concrete specimens, which includes the sand patch method and laser triangulation as established roughness measurement methods in practice. The empirically determined correlation coefficients between all three methods were greater than 0.99, indicating extraordinarily high linear relationships. Among them, the greatest correlation was between the camera-based system and laser triangulation.

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Section: State Of the Art And Related Work 21 Recent Advances In Roug...mentioning

confidence: 99%

Quality Assessment of a Novel Camera-Based Measurement System for Roughness Determination of Concrete Surfaces—Accuracy Evaluation and Validation

Özcan¹,

Blankenbach²

2022

Sensors

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“…The surface topography, as presented in Figure 10a, was obtained using 3D optical profilometry. 37 A mobile measurement system based on the scanCONTROL 2,750-100 laser triangulation profilometer allowed roughness parameters to be obtained with high accuracy of 50 μm. Both 2D and 3D surface texture parameters were established by following the guidelines of ISO 4287 and ISO 13565-1, 38,39 respectively, and ISO 25178-1 40 was utilized for areal methods.…”

Section: Interface Roughnessmentioning

confidence: 99%

Suitability of different tests for characterization of the dimpled concrete‐to‐concrete interface

Čairović

Fuente

Zlámal

et al. 2020

Structural Concrete

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The main aim of this study was to assess the suitability of different existing test setups for the mechanical characterization of a dimpled interface obtained by casting concrete against dimpled high-density polyethylene (HDPE) membrane. Even though this type of interface roughening is widely used, especially for monolithic connections between precast elements, to the best of the authors' knowledge there is no research providing any data regarding its roughness parameters, tension, and shear strength, nor its failure modes. To this end, a two-fold objective was established for this research: (a) to identify and analyze, from a technical standpoint, the available test configurations for characterizing the mechanical performance of interfaces, and (b) to perform an extensive experimental program devoted to characterizing the mechanical performance of a dimpled HDPE membrane-cast concrete interface. The suitability of each test for reproducing the expected stress state and the actual resistance mechanism was analyzed. Moreover, a comparison between tension and shear tests, including its main advantages and disadvantaged are also presented.

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Experimental study on bond performance at UHPC-UHPC cold joints

Semendary

Kriegl

Svecova

2022

Construction and Building Materials

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Determination of Surface Roughness Parameters by Optical Profilometry and Sand Patch Test

Cited by 5 publications

References 1 publication

Quality Assessment of a Novel Camera-Based Measurement System for Roughness Determination of Concrete Surfaces—Accuracy Evaluation and Validation

Quality Assessment of a Novel Camera-Based Measurement System for Roughness Determination of Concrete Surfaces—Accuracy Evaluation and Validation

Suitability of different tests for characterization of the dimpled concrete‐to‐concrete interface

Experimental study on bond performance at UHPC-UHPC cold joints

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