The environ
mental da
mage caused by i
mproper
manage
ment of waste tires increased over the
past years creating a relevant proble
m to be solved. In the field of civil engineering results possible to re-utilize the steel fiber and the rubber of the waste tires. In particular the concrete obtained by adding recycled steel fibers shows a good
mechanical i
mprove
ment of the brittle
matrix, as a consequence it appears to be a pro
mising candidate for both structural and non-structural applications. In the present experi
mental work, as a continuation of the research already perfor
med in this field by the authors, the post-cracking perfor
mances of RFRC (Recycled Fiber Reinforced Concrete) were evaluated by
means tests on flexural ele
ments and slabs. The effectiveness of the recycled fibers was evaluated in co
mparison with the experi
mental data obtained for speci
mens realized with IFRC (Industrial Fiber Reinforced Concrete). All fresh and hardened proprieties of concrete
mixes were experi
mentally esti
mated. The post-cracking behavior of the RSFRC, obtained by flexural tests, was co
mparable with that of ISFRC. RSFRC speci
mens showed good energy absorption and good residual strength after cracking.
However, technological issues related to fibers production and concrete mixes preparation, must be still investigated and a wider research is still required to validate the interesting founds.