Analysis of acid-soluble chloride in cement, mortar, and concrete by potentiometric titration without filtration steps

Climent, M.Á.; Viqueira, Estanislao; Almenar, Guillem de Vera; López-Atalaya, M.

doi:10.1016/s0008-8846(99)00063-0

Cited by 38 publications

(23 citation statements)

References 3 publications

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“…Thus, 10 dust samples were extracted from the 2 cm concrete cover. The measurement of the samples acid-soluble Cl -contents was carried out by potentiometric titration as stated by Climent et al [28][29]. These values are always expressed as percentage relative to mass of cement in concrete.…”

Section: Case Study 1: Application Of Ecementioning

confidence: 99%

Efficiency of a conductive cement-based anodic system for the application of cathodic protection, cathodic prevention and electrochemical chloride extraction to control corrosion in reinforced concrete structures

2015

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Please cite this article as: J. Carmona, P. Garcés, M.A. Climent, Efficiency of a conductive cement-based anodic system for the application of cathodic protection, cathodic prevention and electrochemical chloride extraction to control corrosion in reinforced concrete structures, Corrosion Science (2015), doi: http://dx.doi.org/10.1016/ j.corsci. 2015.04.012 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractThis article describes the research carried out regarding the application of cathodic protection (CP) and cathodic prevention (CPrev), in some cases with a pre-treatment of electrochemical chloride extraction (ECE), on representative specimens of reinforced concrete structures, using an anodic system consisting of a graphite-cement paste applied as a coating on the surface. The aim of this research is to find out the competence of this anode for the aforementioned electrochemical treatments. The efficiency of this anode has been clearly demonstrated, as well as its capability to apply a combined process of ECE and after CP.

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Section: Case Study 1: Application Of Ecementioning

confidence: 99%

Efficiency of a conductive cement-based anodic system for the application of cathodic protection, cathodic prevention and electrochemical chloride extraction to control corrosion in reinforced concrete structures

2015

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“…Thus, considering that the specimens concrete cover was 20 mm, 10 dust samples were extracted each 2 mm depth, from the external concrete surface to the rebar. The measurement of the acid-soluble Cl -contents of samples was carried out by potentiometric titration following the procedures stated by previous researches [25,26]. Values were always expressed as percentage relative to mass of cement in concrete.…”

Section: Determination Of CL -Content Profilesmentioning

confidence: 99%

Influence of different ways of chloride contamination on the efficiency of cathodic protection applied on structural reinforced concrete elements

Calero

Climent

Terradillos

2017

Journal of Electroanalytical Chemistry

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Cathodic protection is a method to protect reinforced concrete structures located in saline environments against corrosion effect produced by Cl -penetration. But there are significant differences among these aggressive environments. The aim of this article is to show how different ways of saline contamination can affect the efficiency of cathodic protection. For this research, a series of laboratory specimens representing structural elements were subjected to two versions of cathodic protection (cathodic protection strictly speaking, and cathodic prevention), while two different ways of saline contamination were applied (permanent immersion in a NaCl solution and periodic pouring of discrete amounts of a NaCl solution in atmospheric exposure). Depending on the saline environment, differences in the efficiency of cathodic protection were detected. Results can be useful to determine the specific features of the cathodic protection to be applied in each case, taking into account both the initial Clcontent of the structural element and the particular saline environment where it is located.

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“…In this way 20 concrete dust samples were gained from each core, thus allowing the obtention of sufficiently detailed chloride content profiles. The determination of the samples' acid soluble chloride contents was carried out by potentiometric titration [37,38]. All the chloride content values are expressed in this work as % Cl´relative to cement mass.…”

Section: Experimental Details Of the Ece Testsmentioning

confidence: 99%

Graphite–Cement Paste: A New Coating of Reinforced Concrete Structural Elements for the Application of Electrochemical Anti-Corrosion Treatments

2016

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This paper reviews research carried out towards the development of a novel conductive coating for reinforced concrete structures in order to enable the application of electrochemical anti-corrosion treatments. The coating is composed of a hardened paste containing graphite powder and cement. The applied techniques were electrochemical chloride extraction (ECE), cathodic protection (CP), and cathodic prevention, as well as combined treatments such as ECE-CP. This research has demonstrated their efficiency when using the new conductive coating as an anode system. The influence of the shape of the structural elements on the performance of the electrochemical treatments was also studied. Several characteristics of the coating have been determined, such as conductivity, durability, adhesion to the concrete surfaces, and ease of application. The results demonstrate the adequacy of using this coating as the anode for anti-corrosion treatments on reinforced concrete structural elements of different shapes, for the purpose of extending service life.

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Analysis of acid-soluble chloride in cement, mortar, and concrete by potentiometric titration without filtration steps

Cited by 38 publications

References 3 publications

Efficiency of a conductive cement-based anodic system for the application of cathodic protection, cathodic prevention and electrochemical chloride extraction to control corrosion in reinforced concrete structures

Efficiency of a conductive cement-based anodic system for the application of cathodic protection, cathodic prevention and electrochemical chloride extraction to control corrosion in reinforced concrete structures

Influence of different ways of chloride contamination on the efficiency of cathodic protection applied on structural reinforced concrete elements

Graphite–Cement Paste: A New Coating of Reinforced Concrete Structural Elements for the Application of Electrochemical Anti-Corrosion Treatments

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