Efecto del agua de mar en el hormigón.

Abstract

This thesis evaluates the mechanical properties and durability of concrete made with eawater as mixing water, with the aim of analyzing its performance compared to the conventional use of potable water in construction contexts. To this end, international standards that support the validity of the procedures used are taken into account. The characterization of the water is performed based on ASTM C1602, which establishes the requirements for its use in concrete. Compressive strength is evaluated using ASTM C109 as a reference, adapted for specimen testing according to ASTM C39. For indirect tensile strength, in the absence of a specific standard for cube specimens, ASTM C496 / AASHTO T273 is adopted. Regarding flexural strength, ASTM C293 and ASTM C78 are used as guidelines. Experimentally, two types of mixtures were prepared: Type A, with Portland cement and calcareous aggregates, and Type B, with pozzolanic cement and basaltic aggregates, both using seawater. The results show improved performance for Type B, due to its lower permeability and greater resistance to chloride penetration in marine environments.