Evaluation of the fatigue performance of asphalt mixtures with high RAP content

2014 ◽  
pp. 1089-1098 ◽  
Keyword(s):  
Asphalt Mixtures ◽  
Fatigue Performance

Use of Mechanistic Models to Investigate Fatigue Performance of Asphalt Mixtures

2015 ◽  
Vol 2507 (1) ◽  
pp. 108-119 ◽  
Author(s):  
Jong-Sub Lee ◽  
Nelson Gibson ◽  
Y. Richard Kim
Keyword(s):  
Damage Model ◽  
Asphalt Mixtures ◽  
Fatigue Performance ◽  
Void Content ◽  
Continuum Damage ◽  
Direct Tension ◽  
Air Voids ◽  
Viscoelastic Continuum Damage ◽  
Air Void ◽  
Air Void Content

Effects of design air void contents, design voids in mineral aggregate (VMA), and in-place air voids on the fatigue performance of asphalt mixtures were investigated with mechanistic analyses based on the viscoelastic continuum damage (VECD) analyses and the mechanistic–empirical pavement analysis using the AASHTOWare Pavement ME Design program. The VECD analyses included the simplified viscoelastic continuum damage model at the material level and two structural models: ( a) layered viscoelastic analysis and ( b) layered viscoelastic pavement analysis for critical distresses. The mix design of a 2013 accelerated loading facility test lane was selected to develop the volumetric mix designs with the design air voids of 3%, 4%, and 5%, design VMAs of 13%, 14%, and 15%, and in-place air void contents of 5%, 7%, and 9% with the Bailey method. Dynamic modulus and direct tension cyclic fatigue tests were performed in accordance with the AASHTO TP 107 procedure. The test results showed that the linear viscoelastic property was affected by the design VMA, design air void content, and in-place air void content in order of sensitivity. Also, the damage states at failure determined from the damage characteristic curves and the mechanistic fatigue predictions had consistent trends as observed for the design VMA, in-place air void, and design air void content in rank of sensitivity. Finally, the design VMA, in-place air void, and design air void parameters were found to be sensitive in the mechanistic analyses, whereas the parameter that was most sensitive in the pavement mechanistic–empirical analysis was the in-place air void content.

scholarly journals Fatigue Performance of Different Thickness Structure Combinations of Hot Mix Asphalt and Cement Emulsified Asphalt Mixtures

Materials ◽  
2018 ◽  
Vol 11 (7) ◽  
pp. 1145 ◽  
Author(s):  
Zhenjun Wang ◽  
Linlin Cai ◽  
Xiaofeng Wang ◽  
Chuang Xu ◽  
Bo Yang ◽  
...  
Keyword(s):  
Hot Mix Asphalt ◽  
Asphalt Mixtures ◽  
Fatigue Performance ◽  
Emulsified Asphalt ◽  
Different Thickness

scholarly journals Potential of Using Imidazoline in Recycled Asphalt Pavement

2019 ◽  
Vol 14 (4) ◽  
pp. 521-542
Author(s):  
Robert Jurczak ◽  
Paweł Mieczkowski ◽  
Bartosz Budziński
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Pavement ◽  
Asphalt Mixtures ◽  
Fatigue Performance ◽  
Recycled Asphalt Pavement ◽  
Recycled Asphalt ◽  
Stiffness Modulus ◽  
Optimum Content ◽  
Environmental Considerations ◽  
Freezing Temperatures

The environmental considerations need to be taken into account in any road resurfacing and upgrading project, for example, by reusing asphalt rubble for production of new pavement courses. Mixtures containing larger amounts of recycled asphalt pavement are improved by adding rejuvenator additives. The tests performed on the recycled asphalt mixtures containing lard imidazoline confirm the suitability of this agent for paving applications. Lard imidazoline was found to improve the stiffness modulus, fatigue performance and resistance to the action of water and freezing temperatures. The parameters obtained at the optimum content of additive complied with the criteria defined for virgin asphalt concrete and other mixtures of that kind.

Aggregate gradation effect on the fatigue performance of recycled asphalt mixtures

2019 ◽  
Vol 22 (1) ◽  
pp. 165-184 ◽  
Author(s):  
G. Bharath ◽  
K. Sudhakar Reddy ◽  
Vivek Tandon ◽  
M. Amaranatha Reddy
Keyword(s):  
Asphalt Mixtures ◽  
Fatigue Performance ◽  
Recycled Asphalt ◽  
Aggregate Gradation

Unified characterizing fatigue performance of rubberized asphalt mixtures subjected to different loading modes

2021 ◽  
Vol 279 ◽  
pp. 123740 ◽  
Author(s):  
Chengdong Xia ◽  
Songtao Lv ◽  
Milkos Borges Cabrera ◽  
Xiaofeng Wang ◽  
Chao Zhang ◽  
...  
Keyword(s):  
Asphalt Mixtures ◽  
Fatigue Performance ◽  
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