Temperature variation of flexible and rigid pavements in Eastern Saudi Arabia

Ramadhan, Rezqallah H.; Wahhab, Hamad I. Al‐Abdul

doi:10.1016/s0360-1323(96)00072-8

Cited by 37 publications

(27 citation statements)

References 2 publications

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“…The model revealed that the surface temperature of permeable pavement is appreciably lower than that of impermeable pavement [11]. A filed experiment conducted in Eastern Saudi Arabia found a good correlation between pavement temperature and air temperature [12]. Other experiments in Singapore showed that granite slab, terracotta bricks and concrete interlocking blocks provide lower surface temperatures and heat output than conventional asphalt concrete pavements [13].…”

Section: Grass Ground Covermentioning

confidence: 98%

Mitigating Heat Gain Using Greenery of an Eco-House in Abu Dhabi

Al-Sallal¹,

Al-Rais²

2011

Linköping Electronic Conference Proceedings

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Two fundamental design strategies should be taken into consideration when designing a residential building in desert climates, they are as follows: minimizing solar heat gain through shading and proper building envelope and maximizing passive cooling through natural ventilation. By introducing extensive vegetation yet carefully distributed, shading of building's facades or roofs will directly mitigate heat gain through building envelope. An eco-house was designed in Abu Dhabi with special attention to greenery. In this study, landscape elements were intensively analyzed with the aim of reducing heat gain and improving overall building energy performance. Landscape elements such as green roofs, grass ground cover and greenery next to external walls were simulated in order to achieve optimum energy performance. The use of outdoor landscape (grass ground cover and shade trees) has made a 9% improvement of performance over the reference case regarding the electrical energy use and greenhouse gas emissions. The energy use of the house dropped down by 16% for cooling and 18% for fan operation. With regards to the green roof scenario, a performance improvement of 19% over the base case has been achieved. The energy use of the house dropped down by 24% for cooling and 27% for fan operation.

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Section: Grass Ground Covermentioning

confidence: 98%

Mitigating Heat Gain Using Greenery of an Eco-House in Abu Dhabi

Al-Sallal¹,

Al-Rais²

2011

Linköping Electronic Conference Proceedings

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“…In establishing thermal stress and design parameters of flexible pavement and rigid pavement, daily and seasonal variations in the maximum, minimum, average, and gradient temperature across the pavement depth need to be considered. The principal element is not the actual temperature at or near the surface, but the temperature gradients within the slab that can create cracks in the rigid pavement slab [8][9][10][11][12] and rutting in the asphalt pavement [13]. Significant thermal stress and deformations in the concrete pavement with laterally-fixed concrete slabs can result from daily change in temperature.…”

Section: Introductionmentioning

confidence: 99%

“…In concrete slab pavement, temperature difference between the top and bottom of the PCC layer results in temperature gradients across the concrete slab depth, which in turn leads to a tendency to curl and differential expansions [11,16,17]. Concrete slab weight controls this curling tendency, making thermal stress induced in concrete materials.…”

Section: Introductionmentioning

confidence: 99%

The role of temperature differential and subgrade quality on stress, curling, and deflection behavior of rigid pavement

Setiawan

2020

Journal of the Mechanical Behavior of Materials

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To determine performance of rigid pavement, pavement engineers should not only conduct stress, curling, and deflection analysis, but also understand weather conditions and subgrade quality effects on rigid pavement performance well. This study aims to analyze and visualize the mechanical behaviors of rigid pavement in terms of stress, curling, and deflection using the KENPAVE Program under different curling temperature and subgrade quality. Besides, this study also evaluated temperature differential and k-value effects on the stress, curling, and deflection behavior of concrete pavement. The findings revealed that there is a linear correlation between stress and both k-value and curling temperature, with the latter having more significant impact in controlling stress than the former. However, even though curling is not affected by subgrade quality, it significantly depends on the temperature differential since a higher curling temperature produces higher curling behavior. Lastly, a higher temperature differential produces greater deflection, but a higher k-value produces smaller deflection. Nevertheless, deflection behavior has a more significant curve and the position of the highest deflection shifted towards the center of the slab as the curling temperature and subgrade quality increase.

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“…Numerical and empirical models have been contributed to predict the pavement temperature development and to estimate the variation of the pavement surface temperature, or the impact of the thermal effect at different positions of the pavement structure [10][11][12]. This distributions presented in a very simplified way, or more complete but on short sequences, less analytical formulas that measure this temperature [13][14][15][16]. Mammeri et al (2014), has developed a finite element numerical model using software (Cast3M) where we highlighted the importance of sun rays parameters and the cooling effect at night.…”

Section: Introductionmentioning

confidence: 99%

Elaboration of an Analytical Formula for the Calculation of the Surface Temperature

Mammeri

Lallam

2019

Civ Eng J

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Pavement structures are sometimes subject to repeated dimensional variations of thermal origin generating mechanical stresses that may be detrimental to their durability. Among the most frequently observed degradations, by these stress, are the transverse cracks whose frequency, depth, and variable openings reduce the ride comfort. In this context, where such solicitations are preponderant and the strong variation is noticed on the surface, an analytical approach for calculating the surface temperature of a flexible pavement has been proposed. This approach is able to deal with the transient thermal problem including the phenomenon of ambient temperature and the influx of solar flux specifically for arid regions where the sky is often clear. This approach is adopted because it proposes a simplified calculation of the surface temperature. The model was built on a database measured on the experimental pavement of the laboratory of Egletons GEMH (France), using the calculation code Eureqa formulate. Although neglected in the domain's literature, the meteorological parameters (air temperature and solar flux) are taken into consideration in the analytic function because they give good prediction. The model has practical meanings to predicting the maximum, minimum, and amplitude of the pavement surface temperature. Hence, a good surface temperature assessment provides a key factor for further thermal cracking modeling.

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Temperature variation of flexible and rigid pavements in Eastern Saudi Arabia

Cited by 37 publications

References 2 publications

Mitigating Heat Gain Using Greenery of an Eco-House in Abu Dhabi

Mitigating Heat Gain Using Greenery of an Eco-House in Abu Dhabi

The role of temperature differential and subgrade quality on stress, curling, and deflection behavior of rigid pavement

Elaboration of an Analytical Formula for the Calculation of the Surface Temperature

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