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This work summarized the experimental results of modified concrete samples by recycled polymer shots. The polymer shots were equal to (5, 10, 15) w/% of the amount of cement. The main purpose of this research was to characterize the final mechanical strength of the concrete samples and investigate the basic physio-chemical properties of the newly fabricated concrete. The concrete mixtures were prepared using a new, laboratory-calculated recipe with polymer shots, basalt as an aggregate, deflocculant based on polycarboxylates and portland cement (42.5 MPa). After 28 d the mechanical properties such as the compressive strength and bending strength were characterized. The initial and final binding times were determined. SEM micrographs and LM images were taken. The thermal conductivity was also measured. Additionally, the thingness test was investigated. The presented research shows that the tested samples containing polymer shots exhibit lower mechanical properties than the samples without modifications. Compared to the reference sample the rest of the investigated properties are higher. These kinds of concrete are very promising for applications in civil engineering in special building constructions in the future.

Characterization of new recycled polymer shots addition for the mechanical strength of concrete