Bu çalışmada, polimer katkılı B50/70 sınıfına ait bitümlü bağlayıcının laboratuvar ortamında uzun süreli yaşlandırılması gerçekleştirilerek asfalt kaplamadaki yorulma ömrü tahmin edilmiştir. Bitümlü sıcak karışımların (BSK) orta sıcaklıklardaki performansını arttırma amacıyla Etilen Vinil Asetat (EVA) katkısı bitüme yaygın olarak eklenmektedir. Asfalt bağlayıcıların modifiye işlemi tamamlanması...

The study aims at investigating diffusion behaviors between virgin asphalt and recycled mastic (RAM) an atomistic scale. Firstly, a mutual model of asphalt–RAM considering the actual mass ratio filler to binder (F/A) condition was developed by molecular dynamic (MD)simulation. Secondly, indexes relative concentration (RC), radial distribution function (RDF) mean square displacement (MSD) were u...

The Joint Transportation Research Program serves as a vehicle for INDOT collaboration with higher education institutions and industry in Indiana to facilitate innovation that results in continuous improvement in the planning, design, construction , operation, management and economic efficiency of the Indiana transportation infrastructure. NOTICE The contents of this report reflect the views of ...

Using a rejuvenator to improve the performance of asphalt pavement is an effective and economic way of hot asphalt recycling. This research analyzes the rejuvenating effect on aged asphalt by means of a Mortar Transfer Ratio (MTR) test, which concerns the ratio of asphalt mortar that moves from recycled aggregates (RAP aggregates) to fresh added aggregates when aged asphalt is treated with a re...

The adoption of warm mix asphalt (WMA) technologies is well accepted due to its promising environmental benefits, however, their long-term field performance not understood. This study focused on the rutting resistance WMA and companion hot (HMA) based 83 samples collected from 28 projects across United States covering four climate zones, quantified impacts for various as compared HMA. Field cor...

Asphalt road reflectance spectra change as pavement ages. This provides the possibility for remote sensing to be used to monitor a change in asphalt pavement conditions. However, the relatively narrow geometry of roads and the relatively coarse spatial resolution of remotely sensed imagery result in mixtures between pavement and adjacent landcovers (e.g., vegetation, buildings, and soil), incre...

MATERIALS Pavement Core Samples COAL TAR AND ASPHALT CEMENT SAMPLES METHODS OF ANALYSIS Binder Content PAH Analysis Analysis of Phenols Modified Ames Assay RESULTS Coal Tar and Asphalt Cement Core Sample Analyses COMPARISON OF CORE SAMPLES WITH U.S. AND EUROPEAN ASPHALT AND COAL TARS COMPARISON OF DIN METHOD FOR PHENOLS WITH THE CORE SAMPLES COMPARISON OF MODIFIED AMES TEST RESULTS DISCUSSION C...