Study of Atmospheric Corrosion of Reinforcement Steel in Havana, Cuba

Authors

  • Abel Castañeda Centro Nacional de Investigaciones Científicas (Cuba). Dirección de Medio Ambiente
  • Juan José Howland Albear Instituto Superior Politécnico José Antonio Echeverría (Cuba). Facultad de Ingeniería Civil, CUJAE
  • Francisco Corvo Universidad Autónoma de Campeche (Mexico). Centro de Investigaciones de Corrosión
  • Rigoberto Marrero Instituto Superior Politécnico José Antonio Echeverría (Cuba). Facultad de Ingeniería Civil, CUJAE

Keywords:

Atmospheric Corrosion, Chloride, Corrosion Aggressivity, Reinforced concrete

Abstract

The atmospheric corrosion of reinforcement steel phenomenon has been frequently investigated under accelerated exposure, throughout diagnostic studies on site and no so much study under natural environmental conditions using probes with different concrete qualities. An exposure site placed at 20 m from the seashore without the presence of artificial of natural screening in the Havana northern coast was selected. Six reinforced concrete probes with water/cement ratios of 0.4, 0.5 and 0.6 and a wooden with four atmospheric pollutants devices, two of them for chloride deposition and the other two for the sulphur compounds deposition were placed in the exposure site. In each probe were placed two reinforced steel with recovering thickness of 20 and 40 mm. The increment of the atmospheric corrosion of the reinforcement steel inside in the time; permit us to estimate the service life of the structures that will be built in coastal zones of Havana with a high level of corrosion aggressivity of the atmosphere and without the presence of any kind of artificial screening. The reinforced concrete probes with water/cement ratios of 0.5, 0.6 and 0.4only with 2 cm of concrete coating thickness do not assure a suitable primary protection as a physic barrier, between the concrete structures.

Author Biography

Abel Castañeda, Centro Nacional de Investigaciones Científicas (Cuba). Dirección de Medio Ambiente


 

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Published

2014-04-30

How to Cite

Castañeda, A., Howland Albear, J. J., Corvo, F., & Marrero, R. (2014). Study of Atmospheric Corrosion of Reinforcement Steel in Havana, Cuba. Revista De La Construcción. Journal of Construction, 13(1), 24–32. Retrieved from https://revistadelaconstruccion.uc.cl/index.php/RDLC/article/view/13570

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