Evaluating the fatigue characteristics and healing potential of asphalt binder modified with Sasobit® and polymers using linear amplitude sweep test

Yue, Mingjing; Yue, Jinchao; Wang, Riran; Xiong, Yuchao

doi:10.1016/j.conbuildmat.2021.123054

Cited by 41 publications

(16 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The test temperature condition was 20 °C, 25 °C, and 30 °C respectively. The loading frequency changes logarithmically and varies in the range of 0.1–100 rad/s [ 26 , 38 ]. Then, the strain-controlled loading mode was used to carry out the LAS test, the amplitude range increases linearly from 0.1% to 30%.…”

Section: Methodsmentioning

confidence: 99%

“…In addition, with the increase of strain, the stress of CS-0.5 decreased more obviously. The pseudo stiffness C represents the integrity of the material, and the damage variable S represents the damage degree of the material [26]. Figure 11 were C-damage strength curves drawn according to the material integrity coefficient C and the strength damage parameter S. It can be seen in the figure that the addition of CNTs can affect the damage evolution of the sealant.…”

Section: Master Curvesmentioning

confidence: 99%

“…This parameter is measured in the linear viscoelastic region of the material, and cannot have a good correlation with the fatigue damage of modified asphalt. However, a suitable fatigue damage criterion should be applicable to a wide range of loading environment, so this evaluation standard has been questioned by many researchers [ 26 , 27 , 28 ]. At present, time scan test (TS) and linear amplitude scan test (LAS) are two widely accepted methods.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigation on Preparation and Properties of Crack Sealants Based on CNTs/SBS Composite-Modified Asphalt

et al. 2021

View full text Add to dashboard Cite

Crack is the main distress of asphalt pavement. Sealant is one of the most commonly used crack repair materials, and its performance is the key to affect the service life of asphalt pavements. In order to find an efficient modifier and optimize the performances of crack sealants. In this paper, carbon nanotubes (CNTs) and styrene-butadiene-styrene (SBS) were used as modifiers to prepare CNTs/SBS composite-modified asphalt crack sealant. The properties of the sealant were tested to evaluate its suitability for crack repair, which included the viscosity, softening point, resilience recovery, cone penetration, flow value, penetration, aging resistance, and fatigue resistance. The results showed that the conventional properties of the sealants meet the requirements of the specification. In addition, after heating aging, the elastic recovery rate of the sealant containing more CNTs decreased only slightly. The sealant containing 1 wt% CNTs exhibited a higher viscosity, fatigue resistance, thermal aging resistance.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Master Curvesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Investigation on Preparation and Properties of Crack Sealants Based on CNTs/SBS Composite-Modified Asphalt

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Highlighted results were that Sasobit can reduce the water-induced adhesion degradation and water-induced aging and Sasobit can delay polar enrichment of asphalt. Yue et all [40] investigated the fatigue characteristics and healing potential of asphalt binder modified with Sasobit and polymers under linear amplitude sweep test. They indicated that after Sasobit modification, the performance of polymer modified bitumen by means of fatigue life, healing capacities.…”

Section: Article Info Abstractmentioning

confidence: 99%

Investigation the Physical and Rheological Properties of Bitumen Modified with Warm Mix Asphalt Additive

Gökalp¹

2021

European Journal of Technic

View full text Add to dashboard Cite

“…There are three main methods for producing WMA by use of synthetic or organic additives, which are zeolite [ 5 , 6 ], surfactant [ 7 , 8 ] and wax [ 9 , 10 ]. The zeolite and wax reduce the mixing temperature of asphalt and aggregate by reducing the viscosity of the asphalt.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Adhesion Performance of Wax Based Warm Mix Asphalt with Molecular Dynamics Simulation

et al. 2022

View full text Add to dashboard Cite

Compared with traditional hot mix asphalt (HMA), wax based warm mix asphalt (WWMA) can be mixed with the aggregate at a lower temperature and achieve the desired compaction. However, the adhesion performance of WWMA on aggregate is uncertain. To evaluate the adhesion performance of asphalt and aggregate, researchers used contact angle test, pull-off test, and ultrasonic washing experiments. However, these tests cannot adequately explain the microscopic mechanism of the interface between asphalt and aggregate. Molecular dynamics (MD) can better explain the adhesion mechanism of asphalt aggregates because they can be simulated at the molecular scale. So, the purpose of this research is to use the MD method to study the adhesion performance between WWMA and aggregate. Two aggregate oxides (CaCO3 and SiO2) models, the matrix asphalt model and WWMA models, were built in Materials Studio (MS) software. The adhesion work of asphalt and aggregate oxides was calculated. With the increase of wax modifier content, the adhesion work of asphalt and aggregate oxides (CaCO3 and SiO2) first increases and then decreases. When the wax modifier is increased to 3 wt%, the adhesion works of the WWMA-SiO2 and WWMA-CaCO3 increase by 31.2% and 14.0%, compared with that of matrix asphalt. In this study, the accuracy of the MD calculation result was verified by the pull-off experiments and the contact angle experiments. WWMA was prepared by a high-shear mixer emulsifier. In the pull-off experiments and the contact angle experiments, the tensile strength and the adhesion work between the aggregate and the asphalt containing 3% wax modifier reaches peak values. These values are 140.7% and 124.9%, compared with those between the aggregate and the matrix asphalt. In addition, the results of the pull-off experiments and the contact angle experiments are in good agreement with that of the MD simulation. Finally, Fourier transform infrared spectroscopy (FTIR) shows that the carbonyl content of WWMA is greater than that of matrix asphalt. It explains well that the wax modifier promotes the adhesion between asphalt and aggregate. This paper provides an important theoretical basis to understand the adhesion performance of WWMA and aggregate.

show abstract

Evaluating the fatigue characteristics and healing potential of asphalt binder modified with Sasobit® and polymers using linear amplitude sweep test

Cited by 41 publications

References 48 publications

Investigation on Preparation and Properties of Crack Sealants Based on CNTs/SBS Composite-Modified Asphalt

Investigation on Preparation and Properties of Crack Sealants Based on CNTs/SBS Composite-Modified Asphalt

Investigation the Physical and Rheological Properties of Bitumen Modified with Warm Mix Asphalt Additive

Investigation of Adhesion Performance of Wax Based Warm Mix Asphalt with Molecular Dynamics Simulation

Contact Info

Product

Resources

About