Modeling of transient temperature distribution in multilayer asphalt pavement

Teltayev, Bagdat; Aitbayev, Koblanbek; Ablaliyev, S.A.

doi:10.12989/gae.2015.8.2.133

Cited by 18 publications

(5 citation statements)

References 6 publications

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“…In the general case, the total heat flux ( ) q t arrives at the surface of the road surface [6][7][8] at the moment, which is determined as follows [8]:…”

Section: Matricesmentioning

confidence: 99%

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Modeling of Non-Stationary Temperature Mode of a Multi-Layer Road Structure

Zhurinov¹,

Teltayev²,

Aitbayev³

et al. 2022

SGTS

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The article presents an analysis of changes in the temperature regime in the road pavement and soil foundation of the section of the road "Kyzylorda -Shymkent" based on the results of experimental studies and calculations on a mathematical model. Experimental temperature measurement was carried out using special sensors from the 1 st till the 31 st of July in 2014. Theoretical calculations were carried out on a one-dimensional model of non-stationary thermal conductivity in a multilayer road structure developed by authors. It accounts thermo conductivity properties and thermo resistance of materials of all layers of a pavement structure and subgrade, and also thermo fluxes of convection, solar radiation and thermo flux from a pavement surface. By comparing the experimental and calculated values of the temperature at the points of the pavement, the adequacy of the proposed mathematical model of the non-stationary temperature regime was proved.An adequate mathematical model gives possibility to predict temperature regimes in a pavement structure and subgrade of a road at different changes of air temperature and weather conditions.Results of the experimental measurements showed that in the south region of the republic in July in the afternoon air temperature reaches 40ºC. Its daily average value was more than 30ºC. And a temperature of the asphalt pavement surface exceeds 50ºC, which is more by 15ºC than air temperature. A temperature in layers of the subgrade decreases with depth. For example, at depth of 15 cm from the pavement surface a temperature is 8-10ºC lower than the pavement surface temperature.

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“…In the general case, the total heat flux ( ) q t arrives at the surface of the road surface [6][7][8] at the moment, which is determined as follows [8]:…”

Section: Matricesmentioning

confidence: 99%

“…the total heat flow is applied to the upper boundary of the calculated area. The finite element analog of equation ( 1) has the form [8][9][10]:…”

mentioning

confidence: 99%

Modeling of Non-Stationary Temperature Mode of a Multi-Layer Road Structure

Zhurinov¹,

Teltayev²,

Aitbayev³

et al. 2022

SGTS

View full text Add to dashboard Cite

show abstract

“…These models are appropriate for complex surface boundary conditions because the PDE of heat conduction is solved over the nodes or volumes numerically. In the literature, there are plenty of FEM-models for predicting temperature profiles (McCullough and Rasmussen 1999;Minhoto et al 2005;Jeong and Zollinger 2006;Teltayev and Koblanbek 2015). Alavi et al (2014) proposed a temperature prediction model using the finite control volume approach (FCVM) with fully implicit scheme, that solved some of the known limitations in current temperature prediction models.…”

Section: Prediction Of Temperature Profilesmentioning

confidence: 99%

Characterisation of the climatic temperature variations in the design of rigid pavements

Bayraktarova

Eberhardsteiner

Blab

2021

International Journal of Pavement Engineering

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The design of rigid pavements in Austria is currently based on a catalogue of standard structures, which can be chosen depending on traffic-related parameters. This approach does not allow the consideration of real material characteristics, detailed traffic load information, local climate conditions, and other boundary conditions. To overcome these limitations, a new mechanistic-empirical pavement design method for rigid pavements (MEPDR) has been developed. The focus of this paper is laid on the proper characterisation of climatic boundary conditions and their impact on the design results. To simulate the actual temperature distribution within a concrete slab, a temperature prediction model was proposed and validated with measured weather data. Furthermore, representative temperature gradients were established using the proposed model and surface temperature data from measuring stations distributed over the Austrian highway pavement network. Additionally, the effect of these temperature gradients on the design life of a typical pavement structure was demonstrated using the MEPDR.

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“…Measurements are performed for a long time, data results are recorded into memory block, and then they are transferred by noise-proof cable into interface. More detailed information regarding design of sensors and conditions of their installation can be obtained in the works [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Temperature and moisture distribution in a highway in south-eastern Kazakhstan

Teltayev¹,

Suppes²

2019

MATEC Web Conf.

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The matters of investigation for water thermal regime of pavement and subgrade structures of the highways are especially important as the moisture and temperature distribution in pavement and subgrade layers impact greatly on their deformation and strength indicators. Experimental results, which can be obtained by special measurement devices, are primary ones for establishing of peculiarities and regularities for distribution and migration of heat and moisture in the mentioned structural elements of the highways. Special measurement devices are required to obtain such experimental data. The paper shows the results for analysis of temperature and moisture variation in points of pavement and subgrade of “Almaty-Bishkek” highway. Temperature measurement has been performed by set of special sensors. Regular temperature and moisture measurement have been performed for the period from September 18, 2015 to June 2, 2016. Regularities for temperature regime variation in points of pavement for 24 hours are coordinated with air temperature variations. Amplitude of vibration for temperature is decreased with the depth increase. Moisture in subgrade points is gradually decreased with the reduction of daily average air temperature.

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Modeling of transient temperature distribution in multilayer asphalt pavement

Cited by 18 publications

References 6 publications

Modeling of Non-Stationary Temperature Mode of a Multi-Layer Road Structure

Modeling of Non-Stationary Temperature Mode of a Multi-Layer Road Structure

Characterisation of the climatic temperature variations in the design of rigid pavements

Temperature and moisture distribution in a highway in south-eastern Kazakhstan

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