Naslov
Use of e-waste cables as part of aggregate or fibers in concrete

Autori
Juradin, Sandra ; Čota, Melina ; Lovrić Vranković, Jelena ; Grozdanić, Gabrijela

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
International Congress on Innovation TechnologIes & Engineering / BAŞARAN, Bahri ; BALTACI, Aysun - : IKSAD, 2022, 467-477

ISBN
978-625-8213-60-7

Skup
6th International Conference on Engineering Technology and Innovation (ICETI 2022)

Mjesto i datum
İzmir, Turska, 02.09.2022. - 04.09.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
e-waste cable, concrete, mechanical properties, durability, recycling

Sažetak
Today, e-waste is considered the fastest growing waste on the planet as more than 48 million tons of it are produced every year. Only 15 to 20 % of the total e-waste is recycled and the rest usually goes directly into landfills. This paper presents the possibility of using e-waste cables as a possible replacement for fine and coarse stone aggregates or as reinforcement in the form of fibers. E-waste cables have not undergone any pre- treatment other than manual cutting to the appropriate length. Cables of different diameters were used so that the cut pieces corresponded to 0/4, 4/8 and 8/16 mm aggregate fractions. The amount of e-waste aggregate replacement was 1 and 5% of the total volume of aggregate in concrete. For one concrete mixture, e-waste cables, like 3 cm long fibers, were added to the amount of 1% of the total volume of concrete. A total of 8 concrete mixes were made and tested in the fresh and hardened stage. The workability was tested in a fresh state by the slump and ultrasonic pulse velocity, dynamic modulus of elasticity, compressive strength and flexural strength, σ-δ diagram, saturated water absorption and sorptivity were tested on 28-day-old concrete specimens. The addition of e-waste cables affected the mechanical and durability properties of the concrete due to poorer grain/fiber adhesion and cement matrix. For this reason, the use of this type of concrete is limited, and additional tests are recommended.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti

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