permeability of asphalt mixtures exposed to freeze–thaw

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Permeability of asphalt mixtures exposed to freeze–thaw ...

2016-3-1  A special constant head permeameter following the UNI EN 12697/19 protocol was adopted to evaluate the permeability of asphalt mixtures exposed to freeze–thaw cycles. The permeability of asphalt mixtures mainly focuses on two aspects: regime of flow in asphalt mixtures and hydraulic conductivity of asphalt mixtures.

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Permeability of asphalt mixtures exposed to freeze–thaw ...

The permeability of asphalt mixtures mainly focuses on two aspects: regime of flow in asphalt mixtures and hydraulic conductivity of asphalt mixtures. Results showed that the discharge velocity and hydraulic conductivity of asphalt mixtures are aggravated when samples are subjected to freeze–thaw cycles.

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Permeability of Asphalt Mixtures Exposed to Freeze-Thaw ...

A special constant head permeameter following the UNI EN 12697/19 protocol was adopted to evaluate the permeability of asphalt mixtures exposed to freeze–thaw cycles. The permeability of asphalt...

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10.1016/j.coldregions.2015.12.001 DeepDyve

2020-6-11  The permeability of asphalt mixtures mainly focuses on two aspects: regime Available online 12 December 2015 of flow in asphalt mixtures and hydraulic conductivity of asphalt mixtures. Results showed that the discharge ve- locity and hydraulic conductivity of asphalt mixtures are aggravated when samples are subjected to freeze–thaw Keywords ...

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Influence of Freeze–Thaw Cycles on Thermal Conductivity ...

2020-10-10  Water permeability test. The test method (T0703) given in the Test Procedure for Highway Engineering Asphalt and Asphalt Mixture (JTG E20-2011) was selected to measure the permeability coefficient of asphalt mixtures

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Evaluation of asphalt and asphalt mixtures’ water ...

The water stability and water permeability coefficient of the asphalt mixture of three kinds of asphalt under different grading types were tested after multiple freeze-thaw cycles. The correlation degree between the adhesion evaluation index and the water stability index was evaluated by

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A micromechanical model of freeze-thaw damage in

2021-6-11  Freeze-thaw cycles is a major concern for asphalt pavements in countries with a cold climate. Damage due to these freeze-thaw cycles has been shown to affect several material properties and thus the behaviour of asphalt mixtures. Considering the com-plex process of freeze-thaw damage and the complexity of

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Evolution of dynamic flow behavior in asphalt mixtures ...

2020-9-20  1. Introduction. Asphalt mixture is a special porous medium consisted of asphalt binder, aggregate, and air void, which is widely used in pavement engineering .The role of moisture in pore structure and its transport phenomena occurring in asphalt mixtures have long been recognized, and during the last 20 years, many studies have been conducted on freeze-thaw damage of asphalt mixtures

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Multi-scale damage characterization of asphalt mixture ...

2020-4-20  The freeze-thaw damage of asphalt mixture was characterized from multi-scale. X-ray CT and SEM were employed to study the internal structure. The internal structure indicated three diversifications during freeze-thaw cycles. The evolution of IDT strength was consisted with the variations of meso-parameters.

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Analysis of Compressive Characteristics of Asphalt Mixture ...

2016-10-21  Analysis of Compressive Characteristics of Asphalt Mixture under Freeze-Thaw Cycles in Cold Plateau Regions Journal of Highway and Transportation Research and Development, 2013, 7(4): 17-22. 10.3969/j.ISSN.1002-0268.2013.04.002 Article

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Impact of freeze-thaw cycles on the performance of asphalt ...

2021-4-27  DOI link for Impact of freeze-thaw cycles on the performance of asphalt mixture based permeability. Impact of freeze-thaw cycles on the performance of asphalt mixture based permeability book. By J. Yi, D. Feng D. Wang. Book Advanced Testing and Characterization of Bituminous Materials, Two Volume Set.

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Impact of salt and freeze-thaw cycles on performance of ...

Abstract The impact of salt on asphalt binders was first studied through basal experiments of binders. The complex influence of freeze–thaw cycles and salt on strength, volume and weight of three types of asphalt mixtures was then investigated through freeze–thaw tests. Test results indicate that salt has a significant effect on the low temperature performance of asphalt binders; Freeze ...

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Internal structure evolution of asphalt mixtures during ...

Xu et al. studied the internal evolution and analyzed the pore distribution changes and permeability of asphalt mixture during a freeze-thaw cycle with X-ray tomography [28, 29]. Wang et al ...

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Evaluation of asphalt and asphalt mixtures’ water ...

The water stability and water permeability coefficient of the asphalt mixture of three kinds of asphalt under different grading types were tested after multiple freeze-thaw cycles.

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A micromechanical model of freeze-thaw damage in

2021-6-11  Freeze-thaw cycles is a major concern for asphalt pavements in countries with a cold climate. Damage due to these freeze-thaw cycles has been shown to affect several material properties and thus the behaviour of asphalt mixtures. Considering the com-plex process of freeze-thaw damage and the complexity of

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Characterization of Three-Dimensional Internal Structure ...

mixture exposed to freeze–thaw cycles should be explored first. Mohammad et al. proved that specimens with the same macro-scale air void volume may have diverse aggregate and air void ...

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Permeability of hot mix asphalt concrete as affected by ...

2020-10-13  Permeability of Compacted Asphalt Paving Mixtures to examine how permeability is affected by binder content and compaction level. Asphalt samples containing 5.2, 5.7, 6.2, and 6.7 percent binder at air void levels of 4, 6, 8, and 10 percent were tested in a Florida Department of Transportation (FDOT) style permeameter. Gyratory and indirect

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Experimental Study on the Performance Decay of

2020-4-8  freeze-thaw cycle is an important factor a ecting the long-term performance of asphalt mixture [19–21]. Furthermore, it has been shown that air voids have a great influence on the freeze-thaw resistance of asphalt mixture [22–24]. However, in the technical specifications for permeable asphalt

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Analysis of Compressive Characteristics of Asphalt Mixture ...

2016-10-21  Analysis of Compressive Characteristics of Asphalt Mixture under Freeze-Thaw Cycles in Cold Plateau Regions Journal of Highway and Transportation Research and Development, 2013, 7(4): 17-22. 10.3969/j.ISSN.1002-0268.2013.04.002 Article

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Evaluation of mechanical and durability properties of ...

2020-11-16  The CNTs used in the study had an average length of 30 μm, an outer diameter of 20–30 nm, 95% purity, specific surface area of 110 m 2 /g, and density of 1.2 g/m 3.. The fibers used to fabricate ECC are 8 mm PVA fibers manufactured by

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Evolution of dynamic flow behavior in asphalt mixtures ...

This study aims to understand the evolution of dynamic moisture flow in asphalt mixtures exposed to freeze-thaw cycles. X-ray CT was utilized to capture the moisture dynamics in unsaturated asphalt mixtures during simulated rainfall events. Three main characteristics of the dynamic flow behaviors within asphalt mixtures were measured and ...

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Permeability of hot mix asphalt concrete as affected by ...

2020-10-13  Permeability of Compacted Asphalt Paving Mixtures to examine how permeability is affected by binder content and compaction level. Asphalt samples containing 5.2, 5.7, 6.2, and 6.7 percent binder at air void levels of 4, 6, 8, and 10 percent were tested in a Florida Department of Transportation (FDOT) style permeameter. Gyratory and indirect

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Figure 5.13 from Evaluation of the damage of an asphalt ...

Asphalt mixtures are temperature sensitive and have viscoelastic characteristics, so the performances of an asphalt mixture are often affected by nature phenomenon. In Canada, like in many other northern countries, freeze-thaw cycles are a common phenomenon.

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[PDF] Strength, Permeability, and Freeze-Thaw Durability ...

Pervious concrete (PC), as an environmental friendly material, can be very important in solving urban problems and mitigating the impact of climate change; i.e., flooding, urban heat island phenomena, and groundwater decline. The objective of this research is to evaluate the strength, permeability, and freeze-thaw durability of PC with different aggregate sizes, porosities, and water-binder ...

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Comparative Study on the Damage Characteristics of Asphalt ...

The main distresses of asphalt pavements in seasonal frozen regions are due to the effects of water action, freeze-thaw cycles, traffic, and so on. Fibers are usually used to reinforce asphalt mixtures, in order to improve its mechanical properties. Basalt fiber is

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Analysis of Compressive Characteristics of Asphalt Mixture ...

2016-10-21  Analysis of Compressive Characteristics of Asphalt Mixture under Freeze-Thaw Cycles in Cold Plateau Regions Journal of Highway and Transportation Research and Development, 2013, 7(4): 17-22. 10.3969/j.ISSN.1002-0268.2013.04.002 Article

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Reliability-based assessment of deteriorating

Reliability-based assessment of deteriorating performance to asphalt pavement under freeze–thaw cycles in cold regions Wei Si1, Biao Ma⇑, Ning Li, Jun-ping Ren2, Hai-nian Wang3 Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang’an University, Xi’an, Shaanxi 710064, China

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ResearchofMethodforImprovingAntifreeze

2020-8-27  It is well accepted that the strength loss of the asphalt mixture exposed to the freeze-thaw cycle is caused by the ... Attenuation Law of Asphalt Mixture on Freeze-aw ... Damage Evolution of Asphalt Mixture. To study the freeze-thaw damage evolution process of the six types of

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Towards the local expansion and contraction measurement

Abstract This paper aims at analyzing the local strain fields in several asphalt mixtures exposed freeze-thaw cycles. Four types of asphalt with different Recycled Asphalt Pavement (RAP) content (0%, 20%, 40%, and 100% of RAP) were considered. They were subjected to freeze-thaw cycles, in the temperature range of −11 °C and 20 °C. The local contraction/expansion of these samples during the ...

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Evaluation of mechanical and durability properties of ...

2020-11-16  The CNTs used in the study had an average length of 30 μm, an outer diameter of 20–30 nm, 95% purity, specific surface area of 110 m 2 /g, and density of 1.2 g/m 3.. The fibers used to fabricate ECC are 8 mm PVA fibers manufactured by

Get Price