Evaluación de elementos premoldeados de hormigón utilizados en instalaciones de crianza de ganado porcino en ambiente agresivo. Recomendaciones de fabricación
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Date
2013
Journal Title
Journal ISSN
Volume Title
Publisher
Asociación Latinoamericana de Control de Calidad, Patología y Recuperación de la Construcción
Abstract
Las modernas instalaciones destinadas a la crianza intensiva de ganado porcino se construyen con
elementos premoldeados de hormigón ensamblados in situ en grandes superficies techadas; están
sujetas a un ambiente agresivo por los excrementos y vapores que el ganado porcino produce,
produciéndose un recambio prematuro de piezas por la escasa durabilidad de las mismas. El trabajo
presenta los resultados del estudio realizado sobre elementos premoldeados de hormigón (sin uso)
que conforman la estructura, con el objetivo de verificar su comportamiento en las condiciones de
servicio y realizar recomendaciones para asegurar su correcto desempeño. Se extrajeron testigos
de las piezas y se midieron la resistencia a compresión, velocidad de pasaje de onda ultrasónica,
absorción capilar, absorción y permeabilidad al aire. Los resultados obtenidos permiten calificar
al hormigón entre regular y bueno y se presentan las recomendaciones que deberían considerarse
al fabricar los elementos premoldeados para asegurar su durabilidad.
The modern installations for the intensive rearing of pigs are constructed based on precast concrete elements that are assembled on site in large areas covered and which are subject to an aggressive environment and in the feces they produce vapors, causing a premature replacement of parts by the low durability of the same. The paper presents the results of a study on precast concrete (unworn) that make up the structure in order to verify its performance in service conditions and make recommendations to assure its correct performance. Witnesses were extracted from the parts and measured the resistance to compression, speed of passage of the ultrasonic wave, capillary absorption, absorption and permeability to air. The results obtained allow us to qualify to the concrete between regular and good and presents the recommendations should be considered when manufacturing the precast elements to ensure their durability.
The modern installations for the intensive rearing of pigs are constructed based on precast concrete elements that are assembled on site in large areas covered and which are subject to an aggressive environment and in the feces they produce vapors, causing a premature replacement of parts by the low durability of the same. The paper presents the results of a study on precast concrete (unworn) that make up the structure in order to verify its performance in service conditions and make recommendations to assure its correct performance. Witnesses were extracted from the parts and measured the resistance to compression, speed of passage of the ultrasonic wave, capillary absorption, absorption and permeability to air. The results obtained allow us to qualify to the concrete between regular and good and presents the recommendations should be considered when manufacturing the precast elements to ensure their durability.
Description
Keywords
Hormigón, Premoldeados, Durabilidad, Calidad, Testigos
Citation
Revista ALCONPAT.
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