Influência das técnicas de cura na resistência à compressão do concreto de cimento Portland

Abstract

The quality control of materials in civil construction is essential to certify the performance of structures, guaranteeing the requirements conditioned by the project and technical standards. Concrete is one of the most used materials on construction sites, being applied in various structural and non-structural elements due to its properties, like any other industrial product that performs a responsibility function, it needs to be submitted to technological control for quality verification. The technological control of concrete involves a series of standardized tests and one of the tests most performed by the works is to verify the compressivestrength, which is one of the most important properties of concrete. Within this context, the work was developed with the aim of verifying the influences of different types of cure on the performance of the concrete's compressive strength. From the elaboration of a rational concrete dosage, standardized tests were carried out through concrete specimens subjected to cure by immersion in a tank of water saturatedwith lime, cure in a humid chamber and cure exposed to air. After the curing process, the specimens were subjected to tests to determine the compressive strength at the ages of 03, 07 and 28 days, allowing the test results to be obtained and proving the efficiency of a correctly performed cure in the development of strength of the concrete.