Measurement and Evaluation for Interbedded Pore Water Pressure of Saturated Asphalt Pavement under Vehicle Loading

Chen, Wuxing; Wang, Zhenyong; Guo, Wei; Dai, Wenting

doi:10.3390/app10041416

Cited by 9 publications

(3 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to the huge difference between the hydrostatic test in the laboratory and the actual road used, many reclaimed roads experience different degrees of water damage within a short period of time after being put into operation. Therefore, in order to better investigate the scouring effect of vehicle loads on the asphalt–aggregate interface in the presence of water, simulation tests need to be designed in the laboratory [ 17 , 18 ]. A dynamic water pressure experimental simulator was designed for the test using the idea of the pneumatic pressure approach, and the final results obtained show that the main reason for the attenuation of the mechanical properties of asphalt mixtures is a decrease in asphalt viscosity under the condition that the dynamic water scour is directional and quantitative [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

Adhesion Properties of Recycled High-Viscosity Asphalt–Aggregate Interface under Dynamic Water Erosion

Zhao,

Song,

Wei

et al. 2023

Materials

View full text Add to dashboard Cite

The drainage of asphalt pavement requires the use of a large amount of high-viscosity-modified asphalt, which faces the service environment under dynamic water erosion. The feasibility of recycling high-viscosity-modified asphalt should be investigated to facilitate sustainable infrastructure construction. This study used ultrasonic equipment to simulate dynamic water erosion test conditions and tested the adhesion performance of different types of recycled high-viscosity asphalt at various environmental temperatures. The adhesion energy index and microstructure of recycled high-viscosity asphalt were analyzed using the contact angle test and AFM test. The results demonstrate that the higher the environmental temperature, the worse the anti-stripping performance of recycled high-viscosity asphalt. From the perspective of adhesion performance indicators, a 6% recycling agent dosage is more conducive to restoring the performance of aged high-viscosity -modified asphalt. The AFM test showed that the microstructure of high-viscosity -modified asphalt represented significant changes with an increase in the recycling agent content, and the change in the adhesion force of recycled high-viscosity -modified asphalt was consistent with the results of macroscopic adhesion performance tests. This study illustrates the applicability of implementing regeneration technology for the recycling of aged drainage asphalt pavement.

show abstract

Section: Introductionmentioning

confidence: 99%

Adhesion Properties of Recycled High-Viscosity Asphalt–Aggregate Interface under Dynamic Water Erosion

Zhao,

Song,

Wei

et al. 2023

Materials

View full text Add to dashboard Cite

show abstract

“…The analysis of the causes of dynamic water pressure reveals that each vehicle passing over the road surface generates a "pumping" effect, as illustrated in Figure 1. During this process, water is forced into the adhesive layer through micro-cracks on the road surface, and the water under dynamic water pressure exerts a scouring effect on the tack coat [18][19][20][21]. Consequently, the bond strength of the tack coat gradually deteriorates over time due to the combined effects of temperature and dynamic water pressure.…”

Section: Introductionmentioning

confidence: 99%

Water Resistance of Super Adhesive Emulsified Asphalt Based on Dynamic Water Scouring

Li,

Sun,

Wang

et al. 2023

Coatings

View full text Add to dashboard Cite

This study aimed to address the issue of inadequate water resistance in asphalt pavement tack coat materials by preparing super adhesive emulsified asphalt (SAE). Due to the lack of consideration of dynamic water scouring in previous studies on the water resistance analysis of tack coat materials, this research employed self-designed inclined shear, pullout, and dynamic water scouring devices to examine the shear and tensile strength of matrix emulsified asphalt, styrene block copolymer (SBS)-modified emulsified asphalt, and SAE under various conditions of sprinkling volumes, temperatures, and scouring times. The findings indicate that, in the dynamic water scouring test conducted under the optimal sprinkling amount of tack coat material and the most unfavorable temperature conditions between layers, SAE exhibited residual shear and tensile strengths that were higher than SBS-modified emulsified asphalt and matrix emulsified asphalt. Combining polymerized styrene butadiene rubber (SBR) and polyurethane (PU) as two modifiers in the mix exhibits a synergistic effect, enhancing the bonding performance, scouring resistance, and water resistance of SAE as the tack coat material.

show abstract

“…In order to study the change law of pore water pressure in asphalt pavement, studies about numerical calculations and theoretical analyses have been carried out to calculate the pore water pressure [8][9][10][11][12][13]. For example, based on the porous media theory and Biot theory, Sun et al [14] built a hydromechanical coupling model to investigate the spatial distribution and the change law with time of pore water pressure in asphalt pavement.…”

Section: Introductionmentioning

confidence: 99%

Evaluation on Distribution Characteristics of Pore Water Pressure within Saturated Pavement Structure Based on the Proposed Tire-Fluid-Pavement Coupling Model

Zheng

Huang

et al. 2022

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

To investigate the flow characteristics of pore water in asphalt pavement and the variation law of the pore water pressure under vehicle loading, a novel method based on BA network and quartet structure generation set method was proposed to reconstruct the three-dimensional (3D) pavement model with pores. The permeability coefficient and the gradation curve were adopted to evaluate the reliability and stability of the random growth pavement model. Then, the tire-fluid-pavement coupling model was established with FLUENT 3D based on the fluid Mie–Gruneisen state equation. According to the built fluid-solid coupling model, the pressure-velocity coupled finite volume algorithm was applied to study the distribution of the pore water pressure in asphalt pavement. Results show that the pore water pressure in asphalt pavement decays periodically with time under vehicle loading. For different types of asphalt pavement, the pore water pressure in open-graded friction course (OGFC) pavement is the smallest during the whole process. Moreover, the peak values of the pore water pressure decrease in the order of asphalt concrete (AC) pavement, stone mastic asphalt (SMA) pavement, and OGFC pavement. The maximum negative value of the pore water pressure is generally less than 0.3 times the maximum positive values. As for saturated pavement pores, the pore water pressure is hardly affected by the water film thickness. The positive peak value of the pore water pressure increases on an approximate parabolic curve as the vehicle speed improves gradually, while the negative one remains largely unchanged. The results are expected to help reduce tire hydroplaning risk and provide guidance for the selection of asphalt mixtures of drainage asphalt pavement.

show abstract

Measurement and Evaluation for Interbedded Pore Water Pressure of Saturated Asphalt Pavement under Vehicle Loading

Cited by 9 publications

References 16 publications

Adhesion Properties of Recycled High-Viscosity Asphalt–Aggregate Interface under Dynamic Water Erosion

Adhesion Properties of Recycled High-Viscosity Asphalt–Aggregate Interface under Dynamic Water Erosion

Water Resistance of Super Adhesive Emulsified Asphalt Based on Dynamic Water Scouring

Evaluation on Distribution Characteristics of Pore Water Pressure within Saturated Pavement Structure Based on the Proposed Tire-Fluid-Pavement Coupling Model

Contact Info

Product

Resources

About