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| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Centro Nacional de Investigaciones Científicas
2015
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=181643224014 |
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- Airborne salinity penetration in the coastal tropical climate of the Havana Cuba Abel Castañeda-Valdés Francisco Corvo-Pérez Juan J. Howland Rigoberto Marrero-Águila Química Concreto corrosión durabilidad medio ambiente ABSTRACT. Penetration of airborne salinity in a tropical coastal in Havana City where building structures constitute obstacles for entrance and distribution of the marine aerosol was studied. Chloride ions deposition in exposure site at different distances from the sea was measured. In Havana City, at a distance from the sea about 32 m, deposition of heavier and big chloride particles reaches a minimum. Average annual wind speed flow showed a higher influence on atmospheric corrosivity in the site close to the sea and without obstacles to the wind flow. Wind speed flow is not the only meteorological variable influencing on chloride ions deposition, but also temperature-humidity complex. The influence of this complex is higher in the site close to the seashore. A decrease in air temperature, due to transitory meteorological phenomena, such as the entrance of cold fronts, is the climatic factor with higher influence in chloride ions deposition in the City.INTRODUCCIÓNChanges in the chloride deposition rate versus distance from the sea, as an indicator of the airborne salinity penetrations, has been determined in several coastal areas of different countries, but generally in flat territories, not in cities.1-4 In a coastal city like Havana, at short distances from the sea, building structures and natural vegetation of high altitude may cause a significant screening effect. As it is well known, chloride deposition is the main aggressive agent in the initiation and propagation of the phenomenon of atmospheric corrosion in reinforced concrete and carbon steel building structures. Wet candle has been the device more frequently used to determine chloride deposition. 2015 artículo científico 1015-8553 https://www.redalyc.org/articulo.oa?id=181643224014 en http://www.redalyc.org/revista.oa?id=1816 Revista CENIC. Ciencias Químicas application/pdf Centro Nacional de Investigaciones Científicas Revista CENIC. Ciencias Químicas (Cuba) Vol.46