Evaluación de la oxidación del acero de refuerzo en elementos estructurales de concreto reforzado. Sector Bahía de Caráquez

Abstract

Abstract: The research shows levels of steel oxidation in structural elements of reinforced concrete (columns, beams and walls), after testing the reinforcement of several diameters (10, 12 and 14 mm) of buildings in Bahia de Caráquez, Province of Manabí. Esclerometría tests were carried out, concrete nuclei contaminated by chlorides and sulphates were extracted in the elements of the analyzed structures to evaluate their resistance and porosity. Also it has characterized the stone materials of the area of study (arid of ¾ of inch and crushed sand of the quarries of San Isidro and Picoazá respectively). By comparison we analyze aggregates of the concrete (crushed sand) of the quarry Catamayito (province of Loja) to establish physical parameters-chemical and mechanical reference. The mixing water was analyzed according to the ACI 318 code determining the quantity of sulphates and chlorides. The sea sand was pulverized and analyzed by the X-ray diffraction assay, an experimental technique that determines quantities of chemical components, especially salts.