DIAGNÓSTICO ESTRUCTURAL EN TRES ESTRUCTURAS DE HORMIGÓN ARMADO EMPLAZADAS EN LA PARROQUIA COLÓN, PORTOVIEJO MANABÍ, ECUADOR.

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Bibliographic Details
Title:	DIAGNÓSTICO ESTRUCTURAL EN TRES ESTRUCTURAS DE HORMIGÓN ARMADO EMPLAZADAS EN LA PARROQUIA COLÓN, PORTOVIEJO MANABÍ, ECUADOR.
Alternate Title:	STRUCTURAL DIAGNOSIS OF THREE REINFORCED CONCRETE STRUCTURES LOCATED IN THE PARISH OF COLÓN, PORTOVIEJO MANABÍ, ECUADOR.
Authors:	Moreira Centeno, Gabriel Marcelo¹, Guerra Mera, Juan Carlos² juan.guerra@utm.edu.ec
Source:	Revista CENIC Ciencias Quimicas. 2025, Vol. 56, p167-187. 21p.
Subjects:	REINFORCED concrete testing, CORROSION & anti-corrosives, NONDESTRUCTIVE testing, CHLORIDE ions, CARBONATION (Chemistry), REINFORCED concrete
Geographic Terms:	ECUADOR
Abstract (English):	The structural diagnosis was carried out on three reinforced concrete buildings located in an urban zone of the Colón parish belonging to the canton of Portoviejo, Manabí, Ecuador. Non-destructive and destructive tests were used. Due to the extensive data obtained, an analysis of variance, as well as the behavior of the 10 values of each test determined in the elements, was used to demonstrate the concrete quality used, as well as the definition of the type of service life of the three buildings. The fitting of linear and multiple linear regression models allowed us to demonstrate the most influential factors in the atmospheric corrosion of reinforcement steel in each of the structural elements. It was demonstrated that reinforced concrete quality used was inadequate as an indicator of its durability. The three buildings may have reached their final, residual service life. Visual observation of the structural elements of all three buildings showed otherwise. It continues to be confirmed that the carbonation phenomenon influence does not compromise the service life of buildings, as long as they are located in urban or rural zones. The most influential factors in the atmospheric corrosion of reinforcement steel embedded in reinforced concrete in each of the structural elements were the carbonation constant, the effective capillary porosity percentage and the concentration of soluble chloride ions. It was shown that this second factor, which is very important in the concrete quality evaluation and durability, was not taken into account in other diagnostic studies previously carried out on structures located in coastal zones of Manabí. Chloride ion salts originating from the interior of the ocean and deposited in saline solution form in structures located at great distances from the coastline and penetrating the concrete matrix, which has a high effective capillary porosity percentage, as occurred in all the structural elements of the three buildings, could influence the atmospheric corrosion of the reinforcement steel embedded in the reinforced concrete. [ABSTRACT FROM AUTHOR]
Abstract (Spanish):	El diagnóstico estructural fue ejecutado en tres estructuras de hormigón armado emplazadas en una zona urbana de la parroquia Colón perteneciente al cantón de Portoviejo, Manabí Ecuador. Cinco elementos estructurales entre columnas y vigas fueron seleccionados. Ensayos no destructivos y destructivos fueron usados. Debido a la amplia data obtenida, un análisis de varianza, así como el comportamiento de los 10 valores de cada ensayo determinados en los elementos fue usado para demostrar la calidad del hormigón usado, así como la definición del tipo de vida útil de las tres estructuras. El ajuste de modelos de regresiones lineales y lineales múltiples, permitieron demostrar los factores más influyentes en la corrosión atmosférica del acero de refuerzo en cada uno de los elementos estructurales. Se demostró, que la calidad del hormigón armado usado como un indicador de su durabilidad resultó inadecuada. Las tres estructuras pudieran haber alcanzado su vida útil última y residual. La observación visual de los elementos estructurales de las tres estructuras demostró todo lo contrario. Se continúa confirmando, que la influencia del fenómeno de la carbonatación, no compromete la vida útil de las estructuras, siempre y cuando las mismas estén emplazadas en zonas urbanas y rurales. Los factores más influyentes en la corrosión atmosférica del acero de refuerzo embebido en el hormigón armado en cada uno de los elementos estructurales fueron, la constante de carbonatación, el porcentaje de porosidad capilar efectivo y la concentración de iones cloruro solubles. Se demostró que este segundo factor, muy importante en la evaluación de la calidad y durabilidad del hormigón no fue tenido en cuenta en otros estudios de diagnóstico ejecutados anteriormente en estructuras emplazadas en zonas costeras de Manabí. Las sales de iones cloruro procedentes desde el interior del océano y depositadas en forma de disolución salina en las estructuras emplazadas a grandes distancias desde la línea costera y que penetran por la matriz del hormigón que presentan un porcentaje elevado porosidad capilar como sucedió en todos los elementos estructurales de las tres estructuras, pudieran ejercer su influencia en la corrosión atmosférica del acero de refuerzo embebido en el hormigón armado. [ABSTRACT FROM AUTHOR]
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Database:	MedicLatina

Description
Abstract:	The structural diagnosis was carried out on three reinforced concrete buildings located in an urban zone of the Colón parish belonging to the canton of Portoviejo, Manabí, Ecuador. Non-destructive and destructive tests were used. Due to the extensive data obtained, an analysis of variance, as well as the behavior of the 10 values of each test determined in the elements, was used to demonstrate the concrete quality used, as well as the definition of the type of service life of the three buildings. The fitting of linear and multiple linear regression models allowed us to demonstrate the most influential factors in the atmospheric corrosion of reinforcement steel in each of the structural elements. It was demonstrated that reinforced concrete quality used was inadequate as an indicator of its durability. The three buildings may have reached their final, residual service life. Visual observation of the structural elements of all three buildings showed otherwise. It continues to be confirmed that the carbonation phenomenon influence does not compromise the service life of buildings, as long as they are located in urban or rural zones. The most influential factors in the atmospheric corrosion of reinforcement steel embedded in reinforced concrete in each of the structural elements were the carbonation constant, the effective capillary porosity percentage and the concentration of soluble chloride ions. It was shown that this second factor, which is very important in the concrete quality evaluation and durability, was not taken into account in other diagnostic studies previously carried out on structures located in coastal zones of Manabí. Chloride ion salts originating from the interior of the ocean and deposited in saline solution form in structures located at great distances from the coastline and penetrating the concrete matrix, which has a high effective capillary porosity percentage, as occurred in all the structural elements of the three buildings, could influence the atmospheric corrosion of the reinforcement steel embedded in the reinforced concrete. [ABSTRACT FROM AUTHOR]
ISSN:	10158553