Results of experimental analyses of concrete with metal wastes

Abstract

The purpose of this work was to obtain concrete for energy piles, which served not only the main function of the foundation, but also the function of a heat exchanger when the piles came into contact with the underlying soils. Studies aimed at partial replacement of granite crushed stone (20%, 30% and 40%) with steel reinforcement wastes. It has been obtained that, producing energy piles, the optimal amount of steel reinforcement wastes in a concrete mix is 30%. Increasing the amount of steel reinforcement wastes in a concrete mix up to 40%, the compressive strength decreases due to the concentration of stress in the mortar part. It was found that steel reinforcement wastes evenly without contacting, are distributed with each other in the concrete mix, thereby increasing the density of concrete, compressive strength, thermal conductivity, and also reduces water absorption of the samples. Based on the results of statistical analysis, the data obtained showed that the density of concrete and thermal conductivity, increasing the number of steel reinforcement wastes in the concrete mix, increase in a linear relationship, it follows that this wastes can be used in the production of energy piles.