Effect of Recycled Fibers Addition on Mechanical Properties of Concrete

In this work results of concrete modification based on portland cement (CEM 1-42.5 R) by large amount of steel and polymer recycled fibers into the matrix was done. The main purpose of this study was to obtain directly influence addition of fibers on concrete mechanical properties as eg. tensile strength. The recipe of concrete was prepared use three parts of aggregates: 0.125-0.250; 0.250-0.500 and 0.500-1.000 mm. SEM and LM observations, chemical composition was widely done. Samples of concrete was identified by compressive strength and bending tests after 1, 7, 14 and 28 days of curing. Summarized results were compare with reference concrete. This study was proven that all chosen modifiers revealed increase effect on final mechanical properties of studied concrete and are very perspective for future application in civil engineering. (c) 2018