Innovative Rheological Modifiers for Decreasing the Cracking Susceptibility of Asphalt Mixtures

Abstract

Incorporating additives into asphalt binders or mixtures to mitigate the adverse effects of aging can improve the resistance to fatigue cracking and, thus, prolong asphalt pavement service life. This study aimed to assess five candidate anti-aging technologies through a comprehensive laboratory testing matrix that can reduce the aging susceptibility and enhance the cracking resistance of asphalt mixtures. Two base binders were modified with the additives. The resultant asphalt mixtures were tested at three aging conditions, including short-term and long-term oven aging and the National Center for Asphalt Technology (NCAT) Accelerated Weathering System. The study assessed the impact of additive technology on cracking performance through dynamic modulus and cyclic fatigue testing. The results were utilized to calculate the S_app and Glover–Rowe mix (G-R_m) indexes to gauge the cracking resistances and aging susceptibilities of the asphalt mixtures. A 20-year pavement structural analysis was conducted using FlexPAVE™ 1.1 software to determine the evolution of each mixture’s percent cracking damage. The results consistently indicated that additives 3, 4, and 5 increased the cracking resistance of asphalt mixtures for both base binders. FlexPAVE™ 1.1 pavement analysis also showed that all tested additives reduced the percent damage over 20 years, except for additive 4 with one of the base binders. Implementing and developing promising additives to counteract aging effects is vital for creating more sustainable and durable asphalt pavements.

Keywords

asphalt materials asphalt mixture performance tests cracking reclaimed asphalt pavements asphalt production and use aging

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References

Kim

Y. R.

Castorena

Yousefi Rad

Elwardany

Underwood

B. S.

Farrar

M. J.

Glaser

R. R.

Long-Term Aging of Asphalt Mixtures for Performance Testing and Prediction. Contract No.: 871. National Cooperative Highway Research Program, Washington, D.C., 2017.

Glover

C. J.

Martin

A. E.

Chowdhury

Han

Prapaitrakul

Jin

Lawrence

Evaluation of Binder Aging and Its Influence in Aging of Hot Mix Asphalt Concrete: Literature Review and Experimental Design. Contract No.: Research Report No. FHWA/TX-08/0-6009-1. Texas Transportation Institute, The Texas A&M University System, College Station, 2009.

Jin

Han

Cui

Glover

C. J.

Fast-Rate–Constant-Rate Oxidation Kinetics Model for Asphalt Binders. Industrial & Engineering Chemistry Research, Vol. 50, No. 23, 2011, pp. 13373–13379.

Jing

Varveri

Liu

Scarpas

Erkens

Differences in the Ageing Behavior of Asphalt Pavements with Porous and Stone Mastic Asphalt Mixtures. Transportation Research Record: Journal of the Transportation Research Board, 2021. 2675: 1138–1149.

Ahmed

R. B.

Hossain

Waste Cooking Oil as an Asphalt Rejuvenator: A State-of-the-Art Review. Construction and Building Materials, Vol. 230, 2020, p. 116985.

Yin

Fortunatus

Moraes

Elwardany

M. D.

Tran

Planche

J.-P.

Performance Evaluation of Asphalt Mixtures Modified with Recycled Polyethylene via the Wet Process. Transportation Research Record: Journal of the Transportation Research Board, 2021. 2675: 491–502.

Moraes

Yin

Evaluation of Epoxy Asphalt Binders for Open-Graded Friction Course (OGFC) Application. In Proc., RILEM International Symposium on Bituminous Materials, ISBM 2020. RILEM Bookseries ( Di Benedetto

Baaj

Chailleux

Tebaldi

Sauzéat

Mangiafico

, eds.), Springer, Cham, Vol. 27, 2022, pp. 787–794. https://doi.org/10.1007/978-3-030-46455-4_100.

Keuliyan

Rheological and Chemical Evaluation of Aging Resistant Binder Technologies. Auburn University, AL, 2022.

Luo

Pei

Xia

Chen

Kang

Effect of Different Polymer Modifiers on the Long-Term Rutting and Cracking Resistance of Asphalt Mixtures. Materials, Vol. 14, No. 12, 2021, p. 3359. https://doi.org/10.3390/ma14123359.

10.

Youtchef

Gibson

Shenoy

Al-Katheeb

The Evaluation of Epoxy Asphalt and Epoxy Asphalt Mixtures. Proceedings of the Canadian Technical Asphalt Association Conference on Asphalt Pavements, Vol. 51, 2006, pp. 351–368.

11.

Behnood

Application of Rejuvenators to Improve the Rheological and Mechanical Properties of Asphalt Binders and Mixtures: A Review. Journal of Cleaner Production, Vol. 231, 2019, pp. 171–182.

12.

Kaseer

Martin

A. E.

Arámbula-Mercado

Use of Recycling Agents in Asphalt Mixtures with High Recycled Materials Contents in the United States: A Literature Review. Construction and Building Materials, Vol. 211, 2019, pp. 974–987.

13.

Zhou

Lee

Scullion

Impacts of Rejuvenators on Performance and Engineering Properties of Asphalt Mixtures Containing Recycled Materials. Construction and Building Materials, Vol. 53, 2014, pp. 596–603.

14.

Wang

Y. D.

Underwood

B. S.

Kim

Y. R.

Development of a Fatigue Index Parameter, S_app, for Asphalt Mixes Using Viscoelastic Continuum Damage Theory. International Journal of Pavement Engineering, Vol. 23, No. 2, 2020, pp. 438–452.

15.

Timm

D. H.

Yin

Tran

Foshee

Rodezno

Comparison of Relative Structural Characterization Methods for Additive-Modified Asphalt Mixtures. Transportation Research Record: Journal of the Transportation Research Board, 2022. 2676: 676–688.