Influence of the interface conditions on flexible pavement structures life

Ştefan Marian Lazăr Lecturer PhD.eng. 1  and Elena Diaconu Prof.PhD.eng. 2
  • 1 Technical University of Civil Engineering Bucharest, Department of Roads, Railways and Construction Materials
  • 2 Technical University of Civil Engineering Bucharest, Department of Roads, Railways and Construction Materials


This paper aims to establish the interface conditions influence on the flexible pavement structures life. The methodology consists in using the interface constitutive model available in the Alizé calculation program to calculate the stresses and strains in the flexible pavement structures.

The design criteria related to limiting fatigue cracking of asphalt layers and permanent deformations at the subgrade level from the road bed are used to estimate the flexible pavement structures lifetime.

When calculating the critical stresses and strains, most mechanical design methods of the flexible pavement structures considers that the road layers at interfaces are perfect bonded or total unbonded.

Proper modeling of the interface binding condition is an important aspect in understanding the real behaviour of in-service flexible pavement structures.

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  • [1]. H. ZIARI, M.M. KHABIRI, “Interface Condition Influence on Prediction of Flexible Pavement Life”, Journal of Civil Engineering and Management, Vol. XIII, No. 1, pp. 71-76, 2007.

  • [2]. C. CĂPITANU, G. FODOR, S. CIOCA and C. DAMIAN, “Lack of adhesion between the bituminous layers, cause of premature structural deterioration of roads”, Scientific Symposium “Technical state investigation and remediation procedures used for roads”, TUCEB, Bucharest, June 28, 2002.

  • [3]. C. CĂPITANU, S. CIOCA and C. DAMIAN, “Analysis of some aspects of design calculations with negative consequences on the pavement structures performance”, Scientific Symposium “Road Research and Administration”, “CAR 2012”, Edition Vth, TUCEB, Bucharest, July 5, 2012.

  • [4]. ***, Normative for flexible and semi-rigid pavement structures design. (Analytical Method), ind. PD 177-2001.

  • [5]. ***, LCPC - Laboratoire Central des Ponts et Chaussées, “Alizé, Logiciel de calcul des contraintes et déformations dans un milieu multicouches élastique linéaire applique aux structures de chaussées”, Hugues Odéon, novembre 1991.

  • [6]. ***, LCPC, “Conception et dimensionnement des structures de chaussées”, Guide Technique, LCPC-SETRA, France, 1994.

  • [7]. D.M. BURMISTER, “The theory of the stress and displacements in layered systems and applications of design of airport runway, Proceeding of the Highway Research Board, 23, pp. 126-148, 1943.

  • [8]. G. FODOR and N. POPESCU, “Flexible and semi-rigid pavement structures. Design and composition”, Technical Guide, Revised Edition 2nd, BOMACO SRL, 2009.

  • [9]. C. DAMIAN, “Interpretation of results from flexible pavement structures measurement with Dynatest FWD equipment”, Dissertation, Technical University of Civil Engineering Bucharest, 2009.

  • [10]. M.A. MINER, “Cumulative Damage in Fatigue”, Journal of Applied Mechanics, ASME, Vol. 12, Sept. 1945.


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