Evaluation of the physical mechanical behavior of concrete f'c=28 MPa with partial replacement of coarse recycled aggregate in pavers, Trujillo

Abstract

The research “Evaluation of the physical mechanical behavior of concrete f'c=280 kg/cm² with partial replacement of recycled coarse aggregate in pavers, Trujillo” is aligned with the Sustainable Development Goals (SDG), particularly with SDG 11, by promoting sustainable practices through the use of construction and demolition waste (CDW). The objective was to evaluate the impact of partially replacing natural coarse aggregate (AGN) with coarse recycled aggregate (ARG) in percentages of 10%, 30%, 40% and 50%. The study had a quantitative approach, applied experimental type, and used an experimental research design. The sample consisted of 120 concrete pavers subjected to compression, bending, abrasion, absorption and dimensional variation tests. The instruments included records and guides. The results showed that with 10% ARG, the concrete paver achieved a higher compressive strength than proposed. However, by increasing the proportion of ARG to 30, 40 and 50%, a decrease in mechanical properties (strength) was evident. In conclusion, the results show that with the replacement of 10% of ARG to replace the natural coarse aggregate, it is viable to produce pavers for pedestrian pavement, which comply with NTP 399,611 and contribute to the reduction of the use of natural resources.