Establecimiento de la relación del grado de corrosión de una varilla de construcción cuando esta es sometida a varias condiciones de deformación: establecimiento de la relación del grado de corrosión de una varilla de construcción cuando esta es sometida a varias condiciones de deformación.

Abstract

This document shows the influence of the plastic deformation of a steel in the presence of a simulated corrosive medium, by means of a process of immersion in a saline medium. The material used is a corrugated carbon steel rod and the solution to which it is exposed is 5% sodium chloride, for a period of fifteen days. The samples used were subjected to a bending process at ninety degrees by means of a two-inch diameter mandrel, value specified by the ACI – 318 standard, for rods of twelve millimeters in diameter. The plastically deformed specimens were subjected to mechanical and metallographic tests in order to observe how their properties change due to deformation. Hardness is the property that underwent changes, due to acrimony. Subsequently, the bent rods were exposed by immersion in a saline solution. During the exposure period, each sample was weighed every 48 hours, in order to quantify the mass loss, thus it was identified that the highest value of mass loss corresponds to specimen 22-048-09, with a value of 0.31 grams. The mass loss values of the samples do not vary significantly because they were bent under the same conditions, for this reason, the corrosion rate is similar for each of them, and likewise, the mass lost.