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The performance of concrete exposed to marine environments: Predictive modelling and use of laboratory/on site test methods

S. V. Nanukuttan ; P. A. M. Basheer ; W. J. McCarter ; Luping Tang (Institutionen för bygg- och miljöteknik, Byggnadsteknologi) ; N. Holmes ; T. M. Chrisp ; G. Starrs ; B. Magee
Construction and Building Materials (0950-0618). Vol. 93 (2015), p. 831-840.
[Artikel, refereegranskad vetenskaplig]

This paper reports an approach by which laboratory based testing and numerical modelling can be combined to predict the long term performance of a range of concretes exposed to marine environments. Firstly, a critical review of the test methods for assessing the chloride penetration resistance of concrete is given. The repeatability of the different test results is also included. In addition to the test methods, a numerical simulation model is used to explore the test data further to obtain long-term chloride ingress trends. The combined use of testing and modelling is validated with the help of long-term chloride ingress data from a North Sea exposure site. In summary, the paper outlines a methodology for determining the long term performance of concrete in marine environments. (C) 2015 Elsevier Ltd. All rights reserved.

Nyckelord: Chloride ingress, Chloride diffusivity, Electrical resistivity, Concrete testing, Chloride modelling, Permit ion migration test, Charge passed, Performance testing, Performance-based specification, chloride diffusion-coefficients, migration test, steady-state, design, Construction & Building Technology, Engineering, Materials Science



Denna post skapades 2015-09-03. Senast ändrad 2017-03-21.
CPL Pubid: 221873

 

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Institutioner (Chalmers)

Institutionen för bygg- och miljöteknik, Byggnadsteknologi (2005-2017)

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Husbyggnad

Chalmers infrastruktur