A Review of the Use of Natural Asphalt in Hot Mix Asphalt for Flexible Pavement Construction
Year: 2025
Type: article
Abstract: Natural asphalt is a very important material that has been in use by man for various purposes for centuries. There are numerous advantages, such as being more environmentally friendly as opposed to artificial alternatives, great versatility, and cost-effectiveness, that make it an important natural resource. The use of asphalt mixtures should be tailored within target limits to improve the serviceability of flexible pavements by enhancing their ability to withstand rutting, waviness, fatigue cracking, or moisture damage, which in turn can present opportunities for cost savings and pollution reduction. Most of the work has focused on the application of NAs in asphaltic formulations, considering their good performance in these systems and the binding properties of the mixtures. The primary goals of this research are to examine previous related studies about the use of natural asphalt in the manufacturing of hot-mixed asphalt for the construction of flexible highway pavement and to use some types of natural asphalt in the modification of petroleum asphalt cement properties. This study deals with the description of the resources and uses of natural asphalt in the production of hot-mix asphalt to construct flexible pavements. According to past related studies, the use of natural asphalt as a modifier with petroleum asphalt cement showed improvement of asphalt and hot mixture properties.
Source: Jurnal Kejuruteraan
Authors: Ameer Mohammed Ali, Ali Fadhil Naser, Zahraa Fakhri Jawad
Institution: Al-Furat Al-Awsat Technical University
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4415740887