Durability of sustainable repair mortars exposed to industrial environments
Abstract
Durability of sustainable repair mortars exposed to industrial environments
ABSTRACT
The repair and maintenance of concrete structures has increased in the activities of the construction industry. In this work, the durability of two mortars elaborated with fly ash substitutes (FA) is evaluated by weight with respect to the total cement; furthermore, its performance is compared to three commercial repair mortars, exposed to the CO2 attack in an industrial environment. To evaluate its performance as repair material, tests were carried out to evaluate its resistance to compression, bending, and adherence. Durability tests are also presented as potential measurements, corrosion rate, permeability, and carbonation depth.
Keywords:Â Mortar; repairing materials; corrosion; carbonation; durability.
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Durabilidad de morteros de reparación sustentables expuestos a ambiente industrial
RESUMEN
La reparación y mantenimiento de estructuras de concreto se ha incrementado en las actividades de la industria de la construcción. En el presente trabajo, se evalúa la durabilidad de dos morteros elaborados con sustituciones de ceniza volante (CV)  en peso con respecto al cementante total, adicionalmente se compara su desempeño con tres morteros de reparación comerciales, expuestos al ataque de CO2 en ambiente industrial. Para evaluar el desempeño como materiales de reparación se realizaron ensayos de resistencia a la compresión, flexión y adherencia. Se presentan también pruebas de durabilidad como mediciones de potencial, velocidad de corrosión, permeabilidad y profundidad de carbonatación.
Palabras clave: Mortero; materiales de reparación; corrosión; carbonatación; durabilidad.
Durabilidade de argamassas de reparo sustentáveis expostas a ambiente industrial
RESUMO
O reparo e manutenção de estruturas de concreto tem crescido dentre as atividades da indústria da construção. Foi avaliada a durabilidade de duas argamassas obtidas a partir de substituição de cinzas volantes (CV), em massa em relação à quantidade total de produto aglomerante. Foi comparado o desempenho dessa argamassa com o desempenho de três argamassas de reparo comerciais, frente a um ataque de CO2 num ambiente industrial. Para avaliar o desempenho como materiais de reparo foram realizados ensaios de resistência à compressão, flexão e aderência. São apresentadas também provas de durabilidade com medidas de potencial de corrosão, velocidades de corrosão, permeabilidade e profundidade de carbonatação.
Palavras-chave: Argamassa; materiais de reparo; corrosão: carbonatação; durabilidade.
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References
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