One of the load-bearing elements of the pavement is the asphalt binder, a viscoelastic, thermoplastic substance that has the stiffness of an elastic solid body but also flows and loses energy as a viscous fluid due to frictional losses. Asphalt materials have been studied using creep testing at multiple service temperatures. One of the most significant pavement distresses is persistent strain or rutting. It is thought that the primary cause of rutting in asphalt pavements is the accumulation of tension in the asphalt binder driven due to traffic. The commercial software ABAQUS CAE is utilized to simulate the creep behavior of asphalt concrete samples modeled as 2D bar elements. The viscoelastic properties of the material are characterized using the Prony series, enabling the numerical results to closely align with experimental observations. The outcomes of the analysis are presented as strain-time and displacement-time graphs.
One of the load-bearing elements of the pavement is the asphalt binder, a viscoelastic, thermoplastic substance that has the stiffness of an elastic solid body but also flows and loses energy as a viscous fluid due to frictional losses. Asphalt materials have been studied using creep testing at multiple service temperatures. One of the most significant pavement distresses is persistent strain or rutting. It is thought that the primary cause of rutting in asphalt pavements is the accumulation of tension in the asphalt binder driven due to traffic. The commercial software ABAQUS CAE is utilized to simulate the creep behavior of asphalt concrete samples modeled as 2D bar elements. The viscoelastic properties of the material are characterized using the Prony series, enabling the numerical results to closely align with experimental observations. The outcomes of the analysis are presented as strain-time and displacement-time graphs.
| № | Муаллифнинг исми | Лавозими | Ташкилот номи |
|---|---|---|---|
| 1 | Joldasbaev E.. | assistent | Тashkent State Transport University |
| 2 | Sadikov I.. | professor | Тashkent State Transport University |
| № | Ҳавола номи |
|---|---|
| 1 | Van der Poel C. A general system describing the visco-elastic properties of bitumen and its relation to routine test data. Journal of Applied Chemistry. 1954;4:221-236 |
| 2 | Faheem A, Bahia H. Using gyratory compactor to measure mechanical stability of asphalt mixtures. Wisconsin Highway Research Program; 2004 |
| 3 | Centeno M, Sandoval I, Cremades I, Alarcon J. Assessing rutting susceptibility of five different modified asphalts in bituminous mixtures using rheology and wheel tracking test (No. 08-0705); 2008 |
| 4 | Hofstra A, Klomp AJG. Permanent deformation of flexible pavements under simulated road traffic conditions. In: Third International Conference on the Structural Design of Asphalt Pavements. Vol. 1. 1972. pp. 613-621 |
| 5 | McGennis RB. Background of SUPERPAVE asphalt mixture design and analysis. Federal Highway Administration; Available through the National Technical Information Service; 1994 |
| 6 | Anderson DA, Peterson JC, Christensen DW. Variations in asphalt cements and their effects on performance of asphalt concrete mixtures. In: Presented to the Association of Asphalt Paving Technologies; 1986 |
| 7 | Kim YR. Modeling of Asphalt Concrete (the American Society of Civil Engineers). McGraw-Hill Professional; 2009 |
| 8 | Bahia HU, Hanson DI, Zeng M, Zhai H, Khatri MA and Anderson MR. NCHRP Report 459, Characterization of Modified Asphalt Binders in Superpave Mix Design. Prepared for the National Cooperative Highway Research Program. Washington, D.C.: Transportation Research Board, National Research Council; 2001 |
| 9 | D’Angelo JA, Dongre R, Reinke G. Creep and recovery. Public Roads. 2007; 70(5):24-30 |
| 10 | Delgadillo R, Nam K, Bahia HU. Why do we need to change G*/sin δ and how? Road Materials and Pavement Design. 2006;7(1):7-27 |
| 11 | Delgadillo R, Cho DW, Bahia HU. Nonlinearity of repeated creep and recovery binder test and relationship with mixture permanent deformation. Transportation Research Record. 2006b; 1962(1):2-11 |
| 12 | D’Angelo J, Kluttz R, Dongre R, Stephens K, Zanzotto L. Revision of the superpave high temperature binder specification: The multiple stress creep recovery test. Asphalt Paving Technology. 2007b;76(123) |
| 13 | D’Angelo R, Dongre R, Reinke G. Evaluation of repeated creep and recovery test method as an alternative to SHRP+ requirements for polymer modified asphalt binders. In: Proceedings, Canadian Technical Asphalt Association, November; 2006 |
| 14 | Shenoy A. Refinement of the superpave specification parameter for performance grading of asphalt. Journal of Transportation Engineering. 2001;127 (5):357- 362 |
| 15 | Shenoy A. Nonrecovered compliance from dynamic oscillatory test Vis-a-Vis nonrecovered compliance from multiple stress creep recovery test in the dynamic shear rheometer. International Journal of Pavement Engineering. 2008;9:329-341 |
| 16 | Bouldin MG, Dongré R, D’Angelo J. Proposed refinement of superpave high temperature specification parameter for performance-graded binders. Transportation Research Record: Journal of the Transportation Research Board. 2001;1766(1):40-47. |