Laboratory performance of asphalt mixture with waste tyre rubber and APAO modified asphalt binder

Yan, Kezhen; Wang, Shaoquan; Ge, Dongdong; Chen, Jinghao; Tian, Shan; Sun, Hongjian

doi:10.1080/10298436.2020.1730837

Cited by 20 publications

(5 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The laboratory tests were conducted three times. The assessment of the deviation rate between the predicted and laboratory results was conducted using Equation (11). Table 11 shows the optimal predicted values and laboratory values of response variables of the asphalt mixtures.…”

Section: Optimization Results Based On CCCmentioning

confidence: 99%

“…The laboratory tests were conducted three times. The assess-ment of the deviation rate between the predicted and laboratory results was conducted using Equation (11). In Table 11, the deviation rates of all three response variables were lower than 2%, which showed that there was no discernible distinction between the predicted values and laboratory values.…”

Section: Optimization Results Based On CCCmentioning

confidence: 99%

“…Yan K.ZH. found that 15% waste tire rubber and 4% amorphous polyolefin was the optimal content for achieving the best performance for asphalt mixtures [11]. Zhang H.T.…”

Section: Introductionmentioning

confidence: 96%

See 2 more Smart Citations

The Multi-Objective Optimization Design and Hydrothermal Performance Evaluation of Anhydrous Calcium Sulfate Whisker and Polyester Fiber Compound Modified Asphalt Mixture in Hot-Humid Areas

Fan,

Song,

et al. 2023

Materials

View full text Add to dashboard Cite

In hot and humid climates, asphalt pavements frequently encounter environmental factors such as elevated temperatures and rainfall, leading to rutting deformations and potholes, which can affect pavement performance. The primary objective of this study was to enhance the hydrothermal characteristics of asphalt mixtures through an investigation into the impact of anhydrous calcium sulfate whisker (ACSW) and polyester fiber (PF) on the hydrothermal properties of asphalt mixtures. In this paper, a central composite concatenation design (CCC) was employed to determine the optimal combination of ACSW and PF contents, as well as the asphalt aggregate ratio (AAR). Each influencing factor was assigned three levels for analysis. The evaluation indexes included dynamic stability, retained Marshall stability, and tensile strength ratio. Using the analysis methods of variance and gray correlation degree analysis, the hydrothermal properties of the asphalt mixture were examined in relation to the contents of ACSW, PF, and AAR based on the CCC results. Consequently, the optimal mix design parameters for composite modified asphalt mixture incorporating ACSW and PF were determined. The results indicated that the asphalt mixtures with hydrothermal qualities exhibited optimal performance in terms of 4.1% ARR, 11.84% ACSW, and 0.4% PF. The interaction between AAR and ACSW content had a greater effect on the dynamic stability and tensile strength ratio of the asphalt mixture, whereas the incorporation of ACSW and PF had a greater effect on the retained Marshall stability of the asphalt mixture. Among the three contributing factors, AAR exhibited the strongest relationship with the hydrothermal characteristics of the asphalt mixture, followed by the ACSW content; the correlation of PF content was the lowest. Therefore, to enhance the hydrothermal characteristics of the asphalt mixture, it is important to conduct a full evaluation of the constituents of ACSW and PF, along with the AAR in hot–humid regions.

show abstract

Section: Optimization Results Based On CCCmentioning

confidence: 99%

Section: Optimization Results Based On CCCmentioning

confidence: 99%

See 1 more Smart Citation

The Multi-Objective Optimization Design and Hydrothermal Performance Evaluation of Anhydrous Calcium Sulfate Whisker and Polyester Fiber Compound Modified Asphalt Mixture in Hot-Humid Areas

Fan,

Song,

et al. 2023

Materials

View full text Add to dashboard Cite

show abstract

“…Previous research has shown that the implementation of recycled crumb rubber and natural rubber latex biopolymer as asphalt modifers improves the performance of road surfacing materials [1][2][3][4].Rubber-modifed asphalt mixture has superior resistance to rutting, thermal cracking, fatigue damage, and stripping and lower temperature sensitivity [5][6][7]. Compared to the conventional asphalt binder, using natural or synthetic polymers has signifcantly enhanced the binder properties [8,9].…”

Section: Introductionmentioning

confidence: 99%

The Characterisation of Fracture Resistance of Asphalt Mixtures Containing Rubber Modifiers and a Wax-Based Additive

Poovaneshvaran

Hasan

Jamshidi

et al. 2023

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

Asphalt mixture modification with rubberised material frequently results in improved characteristics and extended service life in actual application. This research characterised the synergistic consequences of rubber modifiers (crumb rubber powder (CRP) and natural rubber latex (NRL)) and wax-based admixtures (Tough Fix Hyper (TFH)) on the performance of the asphalt mixture from the fracture energy and laboratory fracture resistance perspectives. Semicircular bending (SCB) and indirect tensile strength (ITS) tests were conducted to assess the fracture properties of the asphalt mixture samples. To prepare asphalt mixture samples, the wet method was utilised. Higher CRP levels resulted in greater strength and a longer time to attain peak force for both control and mixtures containing wax admixture, as determined by SCB. The interaction between the higher CRP or NRL content and the TFH additive enhanced the fracture resistance, indicating that the components are highly compatible. The 10L + TFH additive produced the highest fraction of energy, indicating a more significant improvement than the counterpart mixes containing the CRP modifier. In addition, incorporation of the CRP and NRL increased the fracture plastic zone (FPZ), resulting in increased fracture toughness. Therefore, the gradient of fracture toughness and fracture energy in the asphalt mix depends on the rubber type, content, and TFH. Although the higher CRP, NRL, and TFH improve the fracture energy and cracking resistance, they increase the crack initiation and propagation velocities, whereby the high bitumen stiffness makes the mixture more brittle than the control mixture. Caution should be exercised when selecting the content of rubber modifier and TFH for the asphalt pavements in low-temperature service. Also, there is a direct interconnection between fracture resistance and fracture energy in the mixtures containing CRP, NRL, and TFH. Such correlations can be used as the premise of predictive micro- and macro-models to evaluate mixture performance in terms of fracture resistance.

show abstract

“…From the results of laboratory-based research investigations, it may be concluded that the inclusion of CR leads to increases in the value of the softening point, elastic recovery, viscosity, complex modulus and rutting results and decreases penetration values and ductility. Kezhen et al [17] also investigated the laboratory-based performance of AC mixes including waste tire rubber through testing, including Marshall stability, wheel tracking, Marshall immersion, freeze-thaw splitting, indirect tensile strength (ITS), indirect tensile fatigue (ITFT) and Marshall stability with long-term aging tests concluding the optimum mixture components. Fontes et al [18] researched issues in regards to permanent deformation and concluded that AC rubber-based mixes improved their resistance to permanent deformation when compared to commonly utilized conventional AC mixes, regardless of the type of asphalt rubber or gradation adopted.…”

Section: Introductionmentioning

confidence: 99%

Building Sustainable Pavements: Investigating the Effectiveness of Recycled Tire Rubber as a Modifier in Asphalt Mixtures

Plati

Cliatt

2021

Energies

View full text Add to dashboard Cite

Building more sustainable pavements for the future requires knowledge of alternative and innovative materials for utilization in future road construction and maintenance activities. Being mindful of this need, the present study investigates a Reacted and Activated Rubber (RAR) compound modifier with the aim of defining an optimal RAR percentage in Asphalt Concrete (AC) mixes. It is acknowledged that when this type of modifier is incorporated within an AC mix as an alternative for the bituminous binder material, the associated economic, environmental and social benefits are significant. Simply put, the use of RAR modifiers provides the potential to utilize a waste product (rubber tires) as a more sustainable alternative to bitumen within AC mixtures. However, it seems that the information about the overall performance of AC mixes modified with RAR is currently limited. On these grounds, the present study focuses on the surface course layer and evaluates (a) achieved physical characteristics (compaction degree/voids), (b) mechanical characterization results (stiffness moduli) and (c) friction-based properties of tested mixtures incorporating varying RAR levels and different test temperatures. From the evaluation, it is concluded that for the case of the surface course mixture under investigation, the optimal percentage by weight of bitumen for inclusion of the RAR modifier is 10%.

show abstract

Laboratory performance of asphalt mixture with waste tyre rubber and APAO modified asphalt binder

Cited by 20 publications

References 46 publications

The Multi-Objective Optimization Design and Hydrothermal Performance Evaluation of Anhydrous Calcium Sulfate Whisker and Polyester Fiber Compound Modified Asphalt Mixture in Hot-Humid Areas

The Multi-Objective Optimization Design and Hydrothermal Performance Evaluation of Anhydrous Calcium Sulfate Whisker and Polyester Fiber Compound Modified Asphalt Mixture in Hot-Humid Areas

The Characterisation of Fracture Resistance of Asphalt Mixtures Containing Rubber Modifiers and a Wax-Based Additive

Building Sustainable Pavements: Investigating the Effectiveness of Recycled Tire Rubber as a Modifier in Asphalt Mixtures

Contact Info

Product

Resources

About