Búsqueda de posibles usos sostenibles de arena de mar para concreto reforzado en vivienda de interés social.

Abstract

The goal is to design a concrete mix using sea sand focused on economically depressed construction sectors. The Pedernales earthquake occurred on April 16, 2016 has revealed the inadequate use of this material in the cities of the Ecuadorian Litoral causing early aging carbonation in the concrete and oxidizing the reinforcing steel. Based on this problem arises the need to present this study with the purpose of reducing the economic cost of construction in the provinces of the Ecuadorian coast. The investigation aims to determine if the use of the sea sand is applicable to the design of mixtures for concrete reinforced with steel and that it meets characteristics of resistance to the simple compression, durability, without presenting / displaying oxidative factors for the steel of reinforcement, with attachment strict to current regulations. Tests were carried out to physically and mechanically characterize the aggregates, including sea sand. Concrete mixes were designed under the American Concrete Institute (ACI) regulations that meet parameters for the presence of salts, pH and porosity.