TY - JOUR N2 - This paper describes the analyses of the fatigue life of the asphalt pavement reinforced with geogrid interlayer under traffic loading. Finite Element ANSYS package with using nCode applications, as well as macros specially designed in APDL programming script and VBA were used to model the considered problem. Our analysis included computation of stress, fatigue life, damage matrix and rainflow matrix. The method applied was the one of fatigue calculation: stress – number of cycles in short S-N. On the basis of the performed high cycle fatigue analysis, the influence of the location of the used geogrid and of its bond with asphalt layers on the fatigue life and the work of the asphalt pavement structure were determined. The study was carried out for three temperature seasons i.e. spring and fall (assumed as one season), winter and summer. The variability of the traffic conditions were taken into account by assuming weekly blocks of traffic loading. The calculations were made using the real values of loading measured in field tests on the German highways by means of HS-WIM weighing system. As a result of the performed tests, it was proved that the use of geogrid-reinforcement may prolong the fatigue life of the asphalt pavement. However, it is required that: the geogrid should be located in the tension zone as low as possible in the structure of the asphalt layers. Moreover, it is necessary to provide high stiffness of the bond between the geogrid and the asphalt layers. L1 - http://www.journals.pan.pl/Content/83806/mainfile.pdf L2 - http://www.journals.pan.pl/Content/83806 PY - 2012 IS - No 1 EP - 113 KW - geogrid KW - asphalt pavements KW - discrete and finite element modeling KW - fatigue KW - geogrid-reinforcement KW - contact of layers KW - stress–number of cycles A1 - Górszczyk, J. A1 - Gaca, S. PB - WARSAW UNIVERSITY OF TECHNOLOGY FACULTY OF CIVIL ENGINEERING and COMMITTEE FOR CIVIL ENGINEERING POLISH ACADEMY OF SCIENCES DA - 31.03.2012 T1 - The influence of the carbo-glass geogrid-reinforcement on the fatigue life of the asphalt pavement structure SP - 97 UR - http://www.journals.pan.pl/dlibra/publication/edition/83806 T2 - Archives of Civil Engineering ER -