Amirkabir University of Technology AUT Journal of Civil Engineering 2588-2899 1 2 2017 12 01 Mechanical Properties of Open Graded Asphalt Mixtures with Pumice Aggregate 189 194 2732 10.22060/ceej.2017.13383.5396 EN Gh. H. Hamedi Faculty of Engineering, University of Guilan, Rasht, Iran M. R. Esmaeeli Faculty of Civil Engineering, Iran University of Science and Technology, Tehran, Iran Journal Article 2017 09 03 Open graded asphalt is used as a wearing course to provide both increased safety in<br />wet weather (through reduced surface water and spray during rain) and reduced noise levels. In this<br />study, Pumice aggregates were applied as a portion of fine aggregate for the improvement of dynamical<br />specification of porous asphalt and the Cantabro, Los Angeles abrasion, and the bitumen precipitation<br />tests were conducted. First, the amount of optimized bitumen related to each of the three types of<br />aggregates and fine Pumice has been estimated, then the properties of the Marshall Resistance and<br />indirect tensile strength have been assigned. Mixtures with 5 percent of fine Pumice has shown better<br />characteristics in Marshall test as well as indirect tensile strength. Also, the results of dynamic creep<br />test showed that the rutting potential decreased by using Pumice aggregate. There is the best amount of<br />permanent deformation for mixtures containing 5% Pumice https://ajce.aut.ac.ir/article_2732_361440528766bbaaaa1901845cf4152b.pdf