Buletinul Institutului Politehnic din Iași Secția Chimie și Inginerie Chimică ISSN: 2537-2947
ISSN-L: 0254-7104
2025, Volume 71(75), Issue 1 (January), pp. 47 - 60
An Unconventional Asphalt. Some Characteristics of Steel Slag Asphalt
ANDREEA MONORANU, “Gheorghe Asachi” Technical University of Iași,
Faculty of Civil Engineering, Iași, Romania,
andreea.monoranu@student.tuiasi.ro GHEORGHE GUGIUMAN, “Gheorghe
Asachi” Technical University of Iași, Faculty of Civil Engineering, Iași,
Romania SILVIU CRISTIAN IRICIUC, “Gheorghe Asachi” Technical University
of Iași, Faculty of Civil Engineering, Iași, Romania GELU-RĂZVAN GIMIGA,
“Gheorghe Asachi” Technical University of Iași, Faculty of Civil
Engineering, Iași, Romania
Abstract It has been known since ancient times that a good
infrastructure is needed to develop an area. But because there are more and
more areas in continuous development, raw materials are consumed with
acceleration and the planet is becoming progressively occupied by waste, we
are trying to find other materials than the classic ones to use in road
construction. Ordinary asphalt mixtures have aggregates of different grades,
filler and bitumen in their composition. If normally the aggregates used for
the production of asphalt are extracted from nature, in this study we showed
how we produced an asphalt with aggregates from crushed steel slag, an
industrial waste, obtained after the manufacture of steel. Inside the
article you will discover the establishment of recipes for asphalt mixtures
with crushed steel slag, the making of samples and their testing according
to the norms in force. The results obtained are encouraging, some
characteristics of this asphalt being better than the asphalt prepared with
classic aggregates. The use of crushed steel slag in areas where there are
dumps with this waste could generate a double benefit: the release of some
storage spaces and the production of a cheaper asphalt. Keywords: steel
slag, asphalt mixture, recycle, waste