Vertical distribution of marine aerosol salinity in a Brazilian coastal area - The influence of wind speed and the impact on chloride accumulation into concrete

被引：27

作者：

Meira, G. R. ^{[1
,2
]}

Pinto, W. T. A. ^{[1
]}

Lima, E. E. P. ^{[2
]}

Andrade, C. ^{[3
]}

机构：

[1] Fed Inst Educ Sci & Technol Paraiba, Av 1 Maio,720, BR-58015430 Joao Pessoa, Paraiba, Brazil

[2] Univ Fed Paraiba, Civil & Environm Engn Postgrad Programme, Joao Pessoa, Paraiba, Brazil

[3] Eduardo Torroja Construct Res Inst, C Serrano Galvache 4, Madrid 28033, Spain

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 135卷

关键词：

Chloride; Concrete; Height effect; Marine aerosol; Marine atmosphere zone; Wind regime; SEA-SALT AEROSOL; ATMOSPHERIC CORROSION; HOLISTIC MODEL; DRY DEPOSITION; ZONE; TRANSPORTATION; PENETRATION; DEPENDENCE; DISTANCE; REGIME;

D O I：

10.1016/j.conbuildmat.2016.12.181

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper analyses the influence of height from the ground on the vertical distribution of marine aerosol salinity for altitudes under the major influence of surf produced aerosol. Results show that the rate of chloride deposition on wet candle decreases drastically when the altitude increases and this relationship can be represented by an exponential decay function, which is influenced by wind regime. A new model is proposed to represent this phenomenon, which is based on the simultaneous influence of the height from the ground and of the wind speeds higher than 3.0 m/s weighted by their residence times. The impact of the salinity decrease with altitude on chloride accumulation into concrete is significant and this should be considered when analysing the performance of vertical concrete structures. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：287 / 296

页数：10

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