The effects of asphalt migration on the flow number of asphalt mixture

Wang, Hui; Zhan, Shihao; Liu, Guojun; Xiang, Junwei

doi:10.1016/j.conbuildmat.2019.07.246

Cited by 15 publications

(5 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The smaller the Fi value, the stronger the resistance to deformation, while Fi In addition to the above indicators, the flow index F i (i.e., the ratio of the permanent strain E p to the F n ) and N f were used to evaluate the anti-rutting performance of the asphalt mixtures. The smaller the F i value, the stronger the resistance to deformation, while F i comprehensively measured the void ratio of the mixtures and the resistance to shear loads, to some extent [39,40].…”

Section: Dynamic Creep Analysis Of Mixturesmentioning

confidence: 99%

“…In Figures 15 and 16, the ratios of the four indicators are defined as the ratios of increase or decrease compared to the control mixture. comprehensively measured the void ratio of the mixtures and the resistance to shear loads, to some extent [39,40].…”

Section: Dynamic Creep Analysis Of Mixturesmentioning

confidence: 99%

“…Regarding the rheological properties, Figure 17a-c show the correlation curves between dynamic stability and shear viscosity, dynamic stability and the parameters of the Burgers model at 0.1 kPa, and dynamic stability and the parameters of the Burgers model at 3.2 kPa, respectively. comprehensively measured the void ratio of the mixtures and the resistance to shear loads, to some extent [39,40].…”

Section: Statistical Analysesmentioning

confidence: 99%

See 2 more Smart Citations

Rheological and Fatigue Characteristics of Asphalt Mastics and Mixtures Containing Municipal Solid Waste Incineration (MSWI) Residues

Loprencipe

et al. 2023

Sustainability

View full text Add to dashboard Cite

The large-scale implementation of municipal solid waste incineration (MSWI) has put great pressure on waste management and environmental protection. Road construction engineering has also been confronted with the challenges of the heavy consumption of non-renewable mineral resources. Therefore, we evaluated the feasibility of recycling and reusing MSWI residue as an alternative to limestone filler (LF) in transport infrastructure. We investigated the rheological characteristics and fatigue performance of asphalt mastics and mixtures containing MSWI residue. Firstly, a particle size analyzer and environmental scanning electron microscope were adopted to characterize the particle distribution and surface micromorphology of the investigated fillers, respectively. Then, tests for determining the steady shear viscosity and multiple-stress creep recovery were conducted to evaluate the high-temperature rheology of five asphalt mastics. Meanwhile, we used Burgers models with fitting parameters to describe the classic creep recovery measurements and viscoelastic responses. The wheel-tracking test revealed the rutting resistance, and the linear amplitude sweep (LAS) and time sweep tests were combined to investigate the fatigue performances of the five asphalt mastics. A dynamic creep test identified the fatigue life of the asphalt mixtures according to the flow number index. Finally, statistical analysis was conducted to identify the correlations between the rheological and fatigue properties of the mastics and mixtures (R2 over 0.87 and 0.78, respectively). Since the fatigue life predictions for the asphalt mastic decreased by over 42.9% according to the MSWI residue/LF volume ratio, the results of the correlations could improve pavement designs. The substitution of the mineral filler in asphalt mixtures with MSWI residue could be a sustainable strategy for the road construction sector.

show abstract

Section: Dynamic Creep Analysis Of Mixturesmentioning

confidence: 99%

Section: Dynamic Creep Analysis Of Mixturesmentioning

confidence: 99%

Section: Statistical Analysesmentioning

confidence: 99%

See 1 more Smart Citation

Rheological and Fatigue Characteristics of Asphalt Mastics and Mixtures Containing Municipal Solid Waste Incineration (MSWI) Residues

Loprencipe

et al. 2023

Sustainability

View full text Add to dashboard Cite

show abstract

“…In the realm of asphalt mixture testing, standard procedures such as the rutting test are commonly employed to evaluate the high-temperature performance of asphalt mixtures. However, field applications have revealed that even when the results of rutting tests conform to specified standards, the guarantee of high-temperature stability in the pavement during service remains uncertain [25]. According to an NCHRP report, the flow number (Fn) describes the boundary points of the second and third stages in the permanent strain curve of the asphalt mixture [26,27].…”

Section: Introductionmentioning

confidence: 99%

Viscoelastic Characteristics and Mechanical Performances of Asphalt Mastic and Mixtures with Fly Ash from Municipal Solid Waste Incineration Residues

Xu,

Du,

Bruno

et al. 2024

Buildings

View full text Add to dashboard Cite

The extraction and utilization of non-renewable mineral resources impose significant transportation and economic challenges in infrastructure construction. At the same time, recycling fly ash derived from the bottom ash in municipal solid waste incineration residues (MSWIRs) presents a waste management hurdle. This study investigates the viscoelastic characteristics and mechanical performances at different scales of asphalt mastic and mixture with fly ash from MSWIRs. Firstly, Fourier transform infrared spectrometry (FTIR) was adopted to distinguish the physically blended states of asphalt and fillers. Then, a frequency test using a dynamic shear rheometer (DSR) was conducted to construct viscoelastic master curves, focusing on asphalt mastic. A dynamic modulus test characterized the viscoelastic behavior at the asphalt mixture scale. Furthermore, the mechanical performances of asphalt mixtures were evaluated, including the resilient modulus through indirect tension tests, moisture susceptibility via the immersed Marshall stability test, and anti-cracking properties with a low-temperature bending test. The FA incorporation in the mixture decreased the immersion residual stability by 7.40%, and increased the flexural tensile strength by 5.03% and the stiffness modulus by 78.67%. The mechanical evaluation of the mixture with FA could meet the application requirements of the asphalt layer. Finally, statistical analyses were conducted to present strong correlations (coefficient R2 over 0.70) among the mechanical results. Fly ash in asphalt mixtures revealed potential as a sustainable approach for waste reuse in road construction. Additionally, substituting mineral fillers at the mastic scale significantly influences the viscoelastic characteristics and mechanical performances of asphalt materials at the mixture scale.

show abstract

“…Permanent deformation that is revealed in wheel paths, bus stops, and area with steep slopes significantly affects the safety, roughness, and ease of transport [1][2][3]. Accordingly, numerous research studies have been performed aimed at determining a convenient way of improving resistance against permanent deformation, such as Binder modification [4][5][6][7], incorporating high modulus and artificial aggregates [8,9], and the use of recycled materials [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

On the Role of Loading Configurations in Creep Curve Accumulation: An Statistical Analysis by Applying Weibull Probability Distribution Function

Motevalizadeh

2021

Int. J. Pavement Res. Technol.

View full text Add to dashboard Cite

Flow number (FN) reflects the resistance of asphalt mixtures against rutting failure by assessing the results of repeated loading permit deformation (RLPD) testing, affecting the different loading regimes. Accordingly, this work was conducted to investigate the impact of loading variables, i.e., loading duration, rest ratio, and loading pulse waveform, in addition to the testing temperature on the permanent deformation accumulation. Square and Haversine waveforms were chosen as the loading waves. Besides, three levels of loading duration (100, 500, and 1000 ms), two levels of rest ratios (1 and 3), and two testing temperatures (40 and 55 °C) were considered in the definition of loading regimes. The Francken model was fitted over the experimental data aim to determine the FN points. Weibull distribution analysis was also applied to distinguish between the different levels of testing variables. The results indicated that testing temperature was the most significant variable in permanent deformation accumulation, and loading duration was the most effective in defining loading regimes. Increasing loading duration and rest ratios resulted in an increased rate of permanent deformation accumulation and lower FN values. The specimens exposed to the square waveform were reached the FN sooner than those exposed to haversine.

show abstract

The effects of asphalt migration on the flow number of asphalt mixture

Cited by 15 publications

References 18 publications

Rheological and Fatigue Characteristics of Asphalt Mastics and Mixtures Containing Municipal Solid Waste Incineration (MSWI) Residues

Rheological and Fatigue Characteristics of Asphalt Mastics and Mixtures Containing Municipal Solid Waste Incineration (MSWI) Residues

Viscoelastic Characteristics and Mechanical Performances of Asphalt Mastic and Mixtures with Fly Ash from Municipal Solid Waste Incineration Residues

On the Role of Loading Configurations in Creep Curve Accumulation: An Statistical Analysis by Applying Weibull Probability Distribution Function

Contact Info

Product

Resources

About