3/11/2024 0 Comments Iitpave software demo![]() However, analysis of the fatigue performance of typical pavement sections with different RAP contents do not suggest any significant detrimental effect of increasing the RAP content for pavements with thick bituminous layers. ![]() The corresponding ‘Initial strain vs fatigue life’ trends suggest a decrease (for any specific strain level) in the fatigue life with an increase in the RAP content. Laboratory fatigue life determined under stress controlled mode increased with increase in the RAP content for all the five aggregate gradations. VG 30 viscosity grade virgin binder was used. Two dense mixes and three gap graded mixes, both with different percentages of RAP, were investigated. The effect of different aggregate gradations on the fatigue performance of RAP mixes is the main focus of the study as this helps us to identify the proportion of RAP that can be used from fatigue performance consideration. This paper presents the details of a laboratory study on the evaluation of the fatigue characteristics of asphalt mixtures containing Recycled Asphalt Pavement (RAP) material using controlled stress indirect tensile fatigue test (ITFT).
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