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Showing 1 to 8 of 8 for “"Chloride migration"”.
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Design and Development of an In-situ Chloride Migration Test
The predominant mechanism of transport of chloride ions into concrete is diffusion. The rate of diffusion is largely controlled by the chloride diffusivity or chloride diffusion coefficient of the concrete. The determination of this parameter requires a long test duration and, hence, migration test …
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Chloride Penetration Resistance and link to Service Life Design of Virginia Bridge Decks
… concrete (RC) bridge decks are exposed to chlorides from deicing salts. Chloride ingress in RC initiates corrosion of the reinforcing steel. The high costs of corrosion have sparked interest in service life design of bridge decks. This thesis characterized the exposure conditions of …
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Development of a new test protocol for the permit Ion migration test
Chloride induced corrosion of steel in concrete is one of the most common reasons for the deterioration of reinforced concrete in both marine and transportation structures. In order to assess the chloride penetration resistance of concrete, the common practice is to remove cores from the structure …
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The Moisture Transport Properties of Cement Mortar under Salt Spray Deposition
… properties of porous building materials. 2)Ion migration and crystal distribution of sodium chloride in cement mortar. The salt crystal distribution and chloride migration patterns of cement mortars with different water-cement ratios and surface evaporation conditions were determined after 120 …
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Estudio de métodos probabilísticos para la predicción de la vida útil de estructuras de hormigón : influencia del factor variabilidad espacial en el caso de plataformas offshore en Brasil
… intrusion de mercurio, permeabilidad al agua, migration de cloruros, contenido de cemento, densidad y resistencia mecanica) relacionadas con la durabilidad de los mismos. Los resultados encontrados, a pesar de no haber sido constatado una variation espacial importante en las propiedades del …
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Enhancing the service life of concrete exposed to chloride attack
… to enhance the durability of concrete exposed to chloride attack by means of two approaches: (i) to design sustainable concrete compositions and (ii) to apply suitable maintenance techniques consisting of electrochemical chloride extraction (ECE) and surface coating (SC) treatments. Subsequently, …
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The Mechanism and Timescales of Soil Formation in the Hyper-arid Atacama Desert, Chile
… with depth and a simple accumulation model that chloride builds up over time via atmospheric inputs and <sup>36</sup>Cl radioactively decays in situ also reproduces the data remarkably well. This model suggests the atmospheric origin of soil chloride and the chloride age at 225 cm of 860 (±90) …
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Durability of cement and concrete matrices incorporating nanocellulose fibers (NCF)
L'introduction des nanofibres de cellulose (NFC) représente une avancée significative dans le domaine des matériaux de construction, offrant des propriétés mécaniques, une durabilité et une rentabilité supérieures par rapport aux fibres traditionnelles. Face aux inquiétudes concernant la durabilité …