Evaluation of typical wma additives on design parameters of SMA mixtures

Abstract

Warm Mix Asphalt (WMA) technologies have made a considerable development in recent years, where studies on environmental pollution and protection of natural resources have become prominent all over the world. Thanks to the rapidly developing and renewed WMA technologies, nonrenewable resources can be saved while environmental effects caused by asphalt production can be reduced. In recent years, WMA technologies have begun to gain importance in the production of Hot Mix Asphalt (HMA), particularly in developing countries where energy supplying is quite expensive for economic reasons. In this study, Stone Mastic Asphalt (SMA) was produced by using pure and modified bitumen with three different WMA admixtures. Marshall tests were carried out to examine the design parameters of these samples. As a result, Marshall Design parameters of Warm Mix Stone Mastic Asphalt (WM-SMA) blends have been produced with WMA additives by decreasing the construction temperature. The resulting mixtures fall within specification criteria.

Investigation of rutting, fatigue and cracking resistance parame-ters of CR modified warm asphalt binders compare with SBS modified binders

“…In recent years, warm asphalt technology has frequently been used since it reduces the carbon emissions and production temperature and energy of asphalt pavements (Aktaş, Aytekin, & Aslan, 2019; Herrera de la Rosa, Alonso Aenlle, & Villegas Muñoz, 2018). One of the most common warm asphalt additives is Sasobit.…”

Functional grading of viscoelastic defined hot mix asphalt layers

“…The two critical distress types used in pavement life estimation are fatigue and rutting. While the maximum compressive strain values occurring on the top of the subgrade are used in the rutting lifetime estimation of the pavement, the tensile strain values occurring under the hot mix asphalt (HMA) surface layer are also used in the fatigue-based pavement life estimate (Aktaş, Aytekin, & Aslan, 2019;Behiry, 2012;Mousa et al, 2015).…”