TY - JOUR N2 - The introduction of new road pavement materials causes the need to verify whether the existing pavement design methods enable correct incorporation of their properties. In the case of asphalt pavements, the origins of contemporary methods may be traced back to the mid-20th century, when solely unmodified binders were used. The introduction of highly SBS-modified binders in 2009 significantly changed the behaviour of the asphalt mixtures and the entire pavement structure. Asphalt courses are now characterised by very high flexibility, elasticity and fatigue resistance, with simultaneous high resistance to rutting. The aim of the article is to present the effect of the use of asphalt mixtures with HiMA (Highly Modified Asphalt) binders in different variants of flexible pavement structures – including one, two or three courses containing HiMA. Fatigue life calculations were performed using the “Similarity Method”, which enables estimation of the fatigue life of the structure based on its relationship with the results of laboratory fatigue tests. The layer system with HiMA in the asphalt base course proved the most advantageous, combining excellent fatigue properties of the mixture containing HiMA with greater stiffness of the wearing and binder courses containing classic binders. The other aspect taken into account in the calculations was the effect of changing the mixture in the asphalt base course from AC 22 to AC 16. This change proved advantageous in all the analysed structures. The deflections and critical strains decreased, while pavement life, determined by fatigue and permanent deformation criteria, increased. L1 - http://journals.pan.pl/Content/122018/PDF-MASTER/art39_corr.pdf L2 - http://journals.pan.pl/Content/122018 PY - 2021 IS - No 4 EP - 624 DO - 10.24425/ace.2021.138521 KW - road pavement KW - highly modified asphalt binder KW - HiMA KW - fatigue life prediction KW - durability analysis A1 - Błażejowski, Krzysztof A1 - Złotowska, Magdalena A1 - Nagórski, Roman A1 - Tutka, Paweł PB - WARSAW UNIVERSITY OF TECHNOLOGY FACULTY OF CIVIL ENGINEERING and COMMITTEE FOR CIVIL ENGINEERING POLISH ACADEMY OF SCIENCES VL - vol. 67 DA - 2021.12.30 T1 - The influence of highly modified asphalt binder on pavement fatigue life prediction – selected problems SP - 605 UR - http://journals.pan.pl/dlibra/publication/edition/122018 T2 - Archives of Civil Engineering ER -