Title:
HPFRC Made with Recycled Steel Fibers from End-of-Life Tires
Author(s):
Fantilli
Publication:
Web Session
Volume:
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
10/17/2021
Abstract:
A detailed investigation on the use of large quantities of recycled steel fibers (RSF), obtained from end of life tires and used as an alternative reinforcement in structural concrete, is the object of this research. In particular, a large quantity of RFS is covered by a cement‐based grout in new high performance fiber‐reinforced composites (HPFRC), cast with a two‐stage procedure similar to that used for producing ferrocement. Mechanical properties are experimentally measured with bending and the uniaxial compression tests, performed on hardened concrete samples. In addition, the environmental impacts of HPFRC made with RSF, and with industrial steel fibers as well, are measured and then compared. The eco‐mechanical analysis reveals the capability of the new HPFRC to effectively substitute similar cement‐based composites manufactured with virgin materials. Accordingly, precast manufacts, such as corrugated slabs and manhole covers, can be produced without reducing the mechanical performances, but improving the environmental impact with a large volume of RSF.