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. 85 - 100
Use of PET Fibers – Polyethylene Terephtalate (Plastic Bottles) in the
Composition of Asphalt Mixture Type BADPC 22.4
CLAUDIU-IONEL CHICUȘ, “Gheorghe Asachi” Technical University of Iași,
Faculty of Civil Engineering and Building Services, Iași, Romania,
claudiu-ionel.chicus@student.tuiasi.ro GHEORGHE GUGIUMAN, “Gheorghe
Asachi” Technical University of Iași, Faculty of Civil Engineering and
Building Services, Iași, Romania SILVIU CRISTIAN IRICIUC, “Gheorghe
Asachi” Technical University of Iași, Faculty of Civil Engineering and
Building Services, Iași, Romania GELU-RĂZVAN GIMIGA, “Gheorghe Asachi”
Technical University of Iași, Faculty of Civil Engineering and Building
Services, Iași, Romania
Abstract The use of plastic waste in construction represents an
innovative solution for reducing the environmental impact of these
materials. One of the most commonly recycled plastic types in construction
is polyethylene terephthalate (PET), due to its durability, lightweight
nature, and availability. In the construction industry, plastic waste and
PET are incorporated either into cement concrete or asphalt mixtures,
contributing to improved mechanical performance and the sustainability of
these materials. In cement concrete, the addition of PET fibers can enhance
crack resistance, durability, and flexibility while also reducing the need
for conventional materials. In the case of asphalt mixtures, PET is used in
the form of fibers or recycled aggregates, playing a role in enhancing road
performance and extending their service life. In this study, experiments
were conducted on the BADPC 22.4 asphalt mixture. In the first stage, the
optimal bitumen content was determined, and for this content, the asphalt
mixture was reinforced with PET fibers in proportions of 2%, 4%, 6%, 8%, and
10% to analyze their influence on the material's physical and mechanical
properties. Keywords: laboratory studies, binder, roads, PET