Establishing Indicators and an Analytic Method for Moisture Susceptibility and Rutting Resistance Evaluation Using a Hamburg Wheel Tracking Test

Wang, Weihan; Huang, C.L.

doi:10.3390/ma13153269

Cited by 9 publications

(7 citation statements)

References 16 publications

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“…In order to avoid this defect, Tsai and Harvey (2003) put forward the threestage Weibull approach to fit rut curve. Based on this, Yin et al (2014) proposed a new method to evaluate the performance of water stability and high-temperature performance by fitting the whole rutting process and proved the reliability of evaluation parameters. In this paper, the Yin fitting method is used to analyze the test results.…”

Section: Evaluation Parameter and Analysis Methodsmentioning

confidence: 99%

Effect of Gradation Variability on Volume Parameter and Key Performances of HMA

Liu

Zhu

Zhang³

et al. 2021

Front. Mater.

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The graded mineral aggregate composed of coarse aggregate, fine aggregate, and mineral powder is the main component of hot asphalt mixture (HMA), and it occupies a mass ratio of more than 95% in HMA. The gradation variability of mineral aggregate is frequently an unavoidable problem in the construction of asphalt pavement engineering. In order to investigate the effect of gradation variability on the volume parameters and key performances of HMA, the asphalt concrete with a nominal maximum particle size of 20 mm (AC20) was selected as the research carrier. Firstly, a benchmark mineral aggregate gradation (BMAG) was designed based on the theory of dense skeleton gradation presented in the paper. Secondly, six types of HMA (that is, AC20) with variable gradations were also determined and all the specimens were prepared by rotary compaction process with the same optimum asphalt content (gradation varies but asphalt content remains the same), and finally based on asphalt pavement analyzer, the performances of all the specimens of each gradation were tested. The results show that, compared with the BMAG-HMA, the volume parameters such as air voids, voids in mineral aggregate, and voids filled with asphalt of the variable-graded HMA change in different directions, but the water stability and high-temperature performance both degrade greatly. The experimental results also show the feasibility and effectiveness of the dense skeleton gradation design theory adopted in this study.

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Section: Evaluation Parameter and Analysis Methodsmentioning

confidence: 99%

Effect of Gradation Variability on Volume Parameter and Key Performances of HMA

Liu

Zhu

Zhang³

et al. 2021

Front. Mater.

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“…Another problem of the AASHTO procedure is the use of a straight line to represent stripping deformation. It is known that stripping deformation increases nonlinearly as the loading cycle increases (3)(4)(5)(6)(7). Drawing a straight line through these points can cause an error in the analysis.…”

Section: Graphical Methods (Aashto Method)mentioning

confidence: 99%

“…Finally, the cumulative rut depth versus loading cycle (or wheel pass, 1 cycle = 1 wheel pass) is plotted to evaluate the rutting and stripping performance of the tested sample. The typical HWTT plot usually has three distinct phases: post-compaction phase, creep phase, and stripping phase (3)(4)(5)(6)(7). The densification of the specimen under the wheel load in the earlier stage of loading is attributed to the post-compaction phase.…”

mentioning

confidence: 99%

Simple Robust Method for Analyzing Hamburg Wheel Tracking Test Data

Hasan

Bairgi

et al. 2022

Transportation Research Record: Journal of the Transportation R

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Though the Hamburg wheel tracking test (HWTT) is adopted by AASHTO for characterizing both rutting and stripping performance of an asphalt concrete mixture, the final rut depth or rut depth at certain loading cycle is the most common reporting parameter that is used by most of the state agencies. The probable reason for this situation is the human subjectivity associated with American Association of State Highway and Transportation Officials (AASHTO) procedure. Rutting and stripping are characteristically two different types of damage evolved from two different damage mechanisms. The final rut depths of two different mixtures can result from two different combinations of rutting and stripping damages. Thus, the direct comparison of final rut depth between these two mixtures is impractical. Though there are some mathematical models proposed by researchers to overcome this limitation, this study found that these models have reliability and robustness issues. To this end, this study developed a simple, reliable, and robust method to analyze HWTT data by accurately differentiating the rutting and stripping damage contributions from the cumulative rut-depth plot. A total of 48 different mixtures’ HWTT data were used to evaluate the accuracy of the method. The developed method is found to be more accurate and robust than the existing models.

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“…Two groups of laboratory methods are most often used to assess the rutting resistance of asphalt mixtures. The first group includes methods of testing a single layer [ 25 , 26 , 27 ], while the second group of methods enables the testing of a set of pavement construction layers [ 28 , 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

“…On the basis of rutting resistance tests carried out in many research centers, it was found that the content, type and quality of the binder used for asphalt mixtures production have a significant impact on their rutting resistance [ 24 , 25 , 26 , 27 ]. The literature describes many methods of binder modifications, including polymers, hydrated lime and basalt fibers, polyalphaolefins, CR, synthetic wax and cellulose fibers [ 31 , 32 , 33 , 34 , 35 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Type of Modified Binder on Stiffness and Rutting Resistance of Low-Noise Asphalt Mixtures

Pakholak¹,

Plewa²,

Gardziejczyk³

2021

Materials

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Low-noise asphalt mixtures are characterized by increased air void content. Their more open structure contributes to faster degradation within the operating temperature range. For this reason, binder modification is used in their production. The correct selection of modifiers allows one to significantly improve the technical properties of the mixtures. The article presents the results of tests of six types of mixtures: stone mastic asphalt (SMA8), porous asphalt (PA8), stone mastic asphalt reducing tire/road noise (SMA8 LA) and stone mastic asphalt reducing tire/road noise, with 10%, 20% and 30% content of rubber granulate (RG). Bitumen 50/70 modified with copolymer styrene butadiene styrene (SBS) and crumb rubber (CR) was used for the production of the mixtures. In order to determine the differences in the technical properties of the mixtures, the following parameters were tested: stiffness modules by indirect tensile testing of cylindrical specimens (IT-CY) in a wide range of positive temperatures, and resistance to permanent deformation using the British and Belgian methods with the use of double wheel tracker (DWT). The test results and their analysis confirmed that there was a significant improvement in the IT-CY stiffness modules of SBS and CR modified mixtures. Replacing more than 20% of coarse aggregate with RG causes a significant decrease in the stiffness of the mixture (by 90% in relation to the reference mixture SMA8 LA). The SMA mixtures obtained lower values of rutting resistance parameters (WTS and PRD) in water (Belgian method) compared to the results obtained in the air tests (British method). On the other hand, mixtures of PA, thanks to the compression of stresses in pores filled with water, obtained better results when the rutting resistance test was performed in the water (Belgian method).

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Establishing Indicators and an Analytic Method for Moisture Susceptibility and Rutting Resistance Evaluation Using a Hamburg Wheel Tracking Test

Cited by 9 publications

References 16 publications

Effect of Gradation Variability on Volume Parameter and Key Performances of HMA

Effect of Gradation Variability on Volume Parameter and Key Performances of HMA

Simple Robust Method for Analyzing Hamburg Wheel Tracking Test Data

Influence of Type of Modified Binder on Stiffness and Rutting Resistance of Low-Noise Asphalt Mixtures

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