Análise bibliográfica dos resultados na produção de concreto de alto desempenho utilizando agregados leves de argila calcinada

Abstract

Concrete is the most widely used material in civil construction, and advances in construction technologies have led to the development of materials that surpass conventional concrete in performance. In this context, HighPerformance Concrete (HPC) stands out for presenting superior characteristics, such as high mechanical strength, low permeability, and greater durability. This study aims to analyze the results of producing high-performance concrete incorporating lightweight aggregates of calcined clay, comparing it with conventional concrete and evaluating its mechanical and physical properties, as well as economic aspects. The adopted methodology consisted of an evaluative and analytical research approach, based on a literature review of scientific studies, technical standards, and specialized documents published between 2010 and 2025, including punctual references to classical works. The analyzed parameters included compressive strength, density, water absorption, production costs, and the clay calcination process. The results indicate that the use of lightweight calcined clay aggregates contributes to reducing concrete density, increasing matrix compaction, and improving mechanical performance, enabling compressive strengths higher than those of conventional concrete. Despite the increase in initial material costs, HPC demonstrates advantages related to durability, reduced maintenance, and structural efficiency. Therefore, calcined clay represents a technically and economically feasible alternative for the production of high-performance concrete, particularly in regions with material availability, contributing to more efficient and sustainable construction solutions.