Effect of Different Rheological Models on the Distress Prediction of Composite Pavement

Ki Hoon Moon; Augusto Cannone Falchetto; Hae Won Park; Di Wang

doi:10.3390/ma13010229

Effect of Different Rheological Models on the Distress Prediction of Composite Pavement

Materials (Basel). 2020 Jan 4;13(1):229. doi: 10.3390/ma13010229.

Authors

Ki Hoon Moon¹, Augusto Cannone Falchetto², Hae Won Park³, Di Wang⁴

Affiliations

¹ Korea Expressway Corporation, Pavement Research Division, 208-96, Dongbu-daro 922 beon-gil, Dongtan-myeon, Hwaseong-si 04717, Korea.
² Department of Civil & Environmental Engineering, University of Alaska Fairbanks, 1760 Tanana Loop, Fairbanks, AK 99775, USA.
³ Department of Civil Engineering, Inha University 100 Inha-ro, Michuhol-gu, Incheon 22212, Korea.
⁴ Department of Civil Engineering and Environmental Science, Technische Universität Braunschweig, Beethovenstraße 51 b, 38106 Braunschweig, Germany.

Abstract

In this paper, three different rheological models including a newly developed formulation based on the current Christensen Anderson and Marateanu (CAM) model, named sigmoidal CAM model (SCM), are used to estimate the evolution of roughness, rutting, and reflective cracking in a typical composite pavement structure currently widely adopted in South Korea. Three different asphalt mixtures were prepared and dynamic modulus tests were performed. Then, the mechanistic-empirical pavement design guide (MEPDG) was used for predicting the progression of the pavement distress and to estimate the effect of the three different models on such phenomena. It is found that the three different mathematical models provide lower and upper limits for roughness, rutting, and reflective cracking. While the CAM model may not be entirely reliable due to its inability in fitting the data in the high-temperature domain, SCM might result in moderately more conservative pavement design.

Keywords: composite pavement; dynamic modulus; mechanistic-empirical pavement design guide (MEPDG); reflective cracking.