Investigations on the mechanical properties of concrete with sheep wool fibers and fly ash

Abstract

The aim of this paper was to investigate the influence of sheep wool fibers (SWF) and fly ash (FA) on the compressive and tensile strength of concrete. There were prepared seven types of mixes, including one reference mix without any addition and the others, apart with SWF only, and a part with SWF and FA addition. The tests were performed to determine the compressive strength and flexural and split tensile strength of the concrete mixes. The experimental results showed that SWF did not improve, overall, the strength of the concrete at the studied percentages of addition and, more than that, in most of the cases, resulting in lower strength.