Solid Concrete Bricks with the Incorporation of Demolition Waste Application under Peruvian Standards such as NTP 399.601

Neyra C.S.V.; Vega S.A.L.C.; Flores C.M.M. · Civil Engineering and Architecture (2025) · DOI: 10.13189/cea.2025.130531

Resumen

Solid concrete brick is a commonly used material in construction, although it often presents some problems such as low strength, cracking, and dimensional fluctuations that do not always comply with current regulations. The purpose of this study was to analyze the physical and mechanical properties of solid concrete bricks made with demolition waste (DW), incorporated in different proportions of 0%, 5%, 10%, 15%, and 20% of fine aggregate. An applied methodology, experimental design, and a quantitative approach were used. The population consisted of all solid concrete brick units with DW, while the sample consisted of 110 specimens selected in accordance with Peruvian Technical Standard NTP 399.601. These bricks were subjected to compressive strength, absorption, and dimensional variation tests. The results obtained show that all dosages with demolition waste improved compressive strength, with 5% DW standing out, reaching an average strength of 24.6 MPa (+12.86%). This same dosage showed a maximum absorption of 8.4% (+5.00%) and a minimum dimensional variation, with values of 1.82% in length, 3.64% in width, and 0.00% in thickness, demonstrating that the incorporation of demolition waste not only increases concrete strength but also maintains absorption and dimensional variation within acceptable ranges according to regulations. It is concluded that demolition waste has a significant impact on the physical and mechanical properties of solid concrete bricks, optimizing their performance and offering a viable alternative for their production.

Instituciones: Universidad Nacional de Barranca