Diseño de hormigón celular de baja densidad, utilizando áridos de la cantera del rio jubones. analizar sus propiedades y aplicaciones.

Abstract

A cellular concrete has been designed with a specific weight lower than that of a common concrete. To make this concrete, aggregates from the local area were used, in this case from the Jubones River quarry. To make the foam, a Sika additive called, SIKA AIR was used, a product exclusively dedicated to this type of concrete. This cellular concrete is presented as a lightweight concrete with a plasticizing and foaming additive with different applications depending on the compressive stress and its specific weight. During its elaboration, previous tests of fluidity and quantity of cement were carried out. The dosage used in this concrete was 1 for cement, 2 for sand, 0.91 for foam and 1.85 for water, cement ratio. The density of the cellular concrete was then determined, determining a specific weight equivalent to 1700 Kg, m3. Then a compression test was performed on the setting days of 7, 14 and 28 days, respectively, the cylinders of specimens were subjected to compression according to the ASTM C31 standard. The compression test results recorded were 141 Kg, cm² for 7 days, 157 Kg, cm² for 14 days and 181 Kg, cm² for 28 days.