Sustainable Adaptive Cycle Pavements Using Composite Foam Concrete at High Altitudes in Central Europe

Decký, Martin; Hodásová, Katarína; Remišová, Eva

doi:10.3390/su14159034

Cited by 7 publications

(6 citation statements)

References 59 publications

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“…The research activities initially focused on monitoring and subsequent numerical modeling of the effect of non-transport (climatic) loads on the construction of linear buildings [1][2][3]. Later, the research assessed the possibility of applying thermal insulation materials in the structural layers of linear buildings and, in some cases, also monitoring their deformation resistance (assessment of the static component of the traffic load) [4][5][6][7]. Subsequently, the research activities focused on transition zones (transition between the earthwork and the buildings of the sub-ballast layers) on the already upgraded parts of the railway infrastructure of the Slovak Railways [8,9].…”

Section: Research Backgroundmentioning

confidence: 99%

Experimental Monitoring of Dynamic Parameters of the Sub-Ballast Layers as a Prerequisite for a High-Quality and Sustainable Railway Line

Ižvolt,

Dobeš,

Papánová

et al. 2024

Sustainability

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Monitoring dynamic load transfer from train traffic to sub-ballast layers is crucial for verifying the reliability and safety of railway lines, assessing the design cost-effectiveness and achieving minimum environmental impact. For this purpose, measurements in labs, in situ or modeling the influence of dynamic loads on the immediate and long-term roadway quality are often performed using suitable software. The available test sections enabled monitoring of the dynamic loads and optimizing the critical spots where increased dynamic effects from railway traffic may occur. The subject of this paper is the calibration of the sensors installed in the different test sections of the trans-European corridor number V. As a result, the necessary input parameters for the subsequent numerical modeling of the dynamic effects on the track substructure and vibration propagation on the available sections of the upgraded railway line were obtained. The sensor calibration was carried out on the experimental field, part of the Experimental Basis of the Department of Railway Engineering and Track Management. As part of the calibration, the sensitivity of the sensors embedded in the track bed to the applied dynamic loads resulting from the impact effects of the lightweight deflectometer was assessed. The result of the calibration was the demonstration of sufficient sensitivity of the sensors and their suitability for implementation in an actual railway track structure, with the aim of obtaining relevant values of the response of the sub-ballast layers to dynamic loads and assessing the operational impacts on the sustainable environment. Also, the main result of the research was the possibility of using the theoretical–experimental route to optimize the layers of the railway body.

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Section: Research Backgroundmentioning

confidence: 99%

Experimental Monitoring of Dynamic Parameters of the Sub-Ballast Layers as a Prerequisite for a High-Quality and Sustainable Railway Line

Ižvolt,

Dobeš,

Papánová

et al. 2024

Sustainability

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“…Additionally, the climate of the project was characterized by the same period of rain and heat, winter covered by snow and ice, and concentrated summer rainfall. The average annual temperature is between 1.3 • C and 4.0 • C, the frost-free period is from 120 to 140 days, the sunshine duration is from 2600 to 2900 h, and the average precipitation is 483 mm [22]. The geographic location of the project is shown in Figure 1.…”

Section: Test Section Project Informationmentioning

confidence: 99%

Effect of Asphalt Pavement Base Layers on Transverse Shrinkage Cracking Characteristics

et al. 2023

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Transverse shrinkage cracking is considered to be one of the main factors leading to the degradation of sustainable service performance for asphalt pavement, but the effect of base layers on it is rarely studied. To investigate the effect of asphalt pavement base layers on transverse shrinkage cracking characteristics, this study analyzed and evaluated it through the test section data. The transverse shrinkage cracking test section data of four different asphalt pavement base layers were compared, and the variation characteristics of transverse shrinkage cracking under the influence of the base layer types and temperature were analyzed. Based on the conventional characteristics, the concept and calculation method of cracking area ratio (CAR) was proposed, and its rationality and accuracy were proved by calculation. It has been found that the CAR can reflect the longitudinal shrinkage performance of asphalt pavement. The shrinkage rate of a semi-rigid base is larger, while the shrinkage performance of a flexible base is better, and the shrinkage performance of the whole pavement is not affected by a small amount of cement. The research provides a practical basis for improving the anti-cracking performance of asphalt pavement and helps to enhance its sustainable service performance.

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“…In the field of road engineering, Slovakia has significant potential for innovation in a university environment. Consequently, in recent times, the employees of the Faculty of Civil Engineering of UNIZA have published articles on the development of innovative building materials [1] and their quality control [2]. Their research activities were based on the perception of innovation, for which credible insights are provided in [3].…”

Section: Introductionmentioning

confidence: 99%

Innovative Quality Assessment of Pavement Subgrades Using the Glegg Impact Soil Tester

Hodasova,

Musuta,

Decky

et al. 2024

Applied Sciences

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This article presents the case study of our research in the field of innovative methods of pavement subgrade quality control using the CIST (Clegg Impact Soil Tester) device. The CIST device developed by Dr Clegg from the University of Western Australia measures soil compaction indirectly using the CBR value. The value is evaluated based on the deceleration rate of a falling 4.5 kg weight moving in a vertical guide roller. In Europe, for the assessment of the mechanical efficiency (bearing capacity) of cohesive soils in the pavement subgrade, priority is given to indirect assessment methods especially using the laboratory determination of CBR (Californian Bearing Ratio) and directly through the implementation of a static plate load test (SPLT). This article reports the long-term results of our research in the field of verification and validation of an innovative CIST device, which minimizes the time, space, and economic disadvantages of SPLT. This article presents the results of determining the field of applicability of the CIST device for cohesive soils, the correlation dependencies (CD) of the CBR values determined by the CIST device, and, according to STN 72 1016, the CD of the impact dynamic deformation modulus Evd from the CIV (Clegg Impact Value). We consider the most important results of our long-term research to be a recognition of the ability of CIST to assess the quality of cohesive soils up to a compression value of 40 mm, corresponding to a CBR of 2.2% and a modulus of subgrade deformation of 20 MPa. A very strong correlation dependence of CBRClegg [%] on the moisture content of clayey soils in the interval from 5 to 19% was also observed. The presented knowledge led to the creation of relevant documents for the credible implementation of the CIST device in the system approach for assessing the quality of the pavement subgrade.

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Sustainable Adaptive Cycle Pavements Using Composite Foam Concrete at High Altitudes in Central Europe

Cited by 7 publications

References 59 publications

Experimental Monitoring of Dynamic Parameters of the Sub-Ballast Layers as a Prerequisite for a High-Quality and Sustainable Railway Line

Experimental Monitoring of Dynamic Parameters of the Sub-Ballast Layers as a Prerequisite for a High-Quality and Sustainable Railway Line

Effect of Asphalt Pavement Base Layers on Transverse Shrinkage Cracking Characteristics

Innovative Quality Assessment of Pavement Subgrades Using the Glegg Impact Soil Tester

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