Análisis del Hormigón Reforzado con Fibras de Cabuya al 0.5%, 0.75% y 1% con tratamiento químico : análisis del Hormigón Reforzado con Fibras de Cabuya al 0.75%.

Abstract

This curricular integration work analyzes the behavior of concrete reinforced with natural cabuya fibers. To introduce the fibers in the concrete, they must go through a series of procedures and comply with the regulations of: ""Instituto Ecuatoriano de Normalización"" (INEN), ""American Concrete Institute"" (ACI) and ""American Society for Testing Materials"" (ASTM). When acquiring the fiber, it is cut in 4cm length according to ACI 544.4R-18 (2018). To improve its properties, it is necessary the chemical treatment with sodium hydroxide (NaOH) with a concentration percentage of 6%, finally it is necessary a process of constant washing of the fibers and verification of the neutral ph for subsequent drying. As for the concrete, several tests are conducted to determine the ideal standard dosage. After determining it, samples of beams and standard cylinders are taken. The properties obtained are compared with some concrete at the same dosage with the addition of treated fibers at 0.75% as a percentage by weight of the coarse aggregate. These results will be analyzed at ages 7 and 28 days. The following was evidenced in the fiber concrete: a 12.62% decrease in compressive strength, a 27.4% increase in peak load in flexure and a 15.8% reduction in deflections after 28 days of analysis.