EFFECT OF RECYCLED CONCRETE AGGREGATES ON THE PHYSICAL AND MECHANICAL PROPERTIES OF WALL BLOCKS

The article investigates the feasibility of using recycled concrete aggregates obtained from the processing of construction waste in the production of wall blocks. The main objective of the study is to evaluate the influence of the recycled concrete aggregate content on the density, water absorption, and compressive strength of wall blocks. As an experimental model, replacement levels of 25, 50, 75, and 100% of natural aggregate with recycled concrete aggregate were considered. According to the model results, an increase in the proportion of recycled aggregate was accompanied by a certain reduction in block density and an increase in water absorption. At recycled aggregate contents of up to 50%, the compressive strength of the blocks remained at a satisfactory level. The results indicate that the use of recycled concrete aggregates can reduce the consumption of natural mineral raw materials and enable construction waste to be reintroduced as a secondary resource.