2017
DOI: 10.1016/j.conbuildmat.2017.03.007
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Quantitative measurement of the influence of degree of saturation on ion penetration in cement paste by using X-ray imaging

Abstract: The external penetration of ions into concrete plays an important role in long-term durability of concrete structures. In addition, the degree of saturation (DoS) of the paste has a large impact on rate and mechanisms of fluid penetration into concrete. There is little knowledge of the dynamic process of fluid penetration into these materials because few experimental techniques are able to give quantitative spatial measurements of the fluid movement without damaging the sample. This paper uses laboratory trans… Show more

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Cited by 32 publications
(3 citation statements)
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“…The iodide The diffusion test in this study used a potassium iodide (KI) tracer on top of the unwaxed surface of the samples. X-rays were used to take images before and after applying KI on top of the samples to study the one-directional mass transport into the samples for 28 days [3,5,47]. In this test, the gravity and moisture movement in the samples were in the same direction.…”
Section: Diffusion Testmentioning
confidence: 99%
“…The iodide The diffusion test in this study used a potassium iodide (KI) tracer on top of the unwaxed surface of the samples. X-rays were used to take images before and after applying KI on top of the samples to study the one-directional mass transport into the samples for 28 days [3,5,47]. In this test, the gravity and moisture movement in the samples were in the same direction.…”
Section: Diffusion Testmentioning
confidence: 99%
“…neutron radiography [80]). Therefore, several studies have used different contrast agents to enhance the visualization of water in l-XCT images, such as, cesium (Cs) [33,77,78,[81][82][83] and iodide (I) [84][85][86][87] solutions. For instance, when a small amount of soluble cesium-based salt (e.g.…”
Section: Introductionmentioning
confidence: 99%
“…A influência do GS sobre a difusão de íons cloreto tem sido objeto de inúmeras pesquisas, sendo demonstrada a sua importância em modelos de análise de vida útil de estruturas de concreto armado e protendido. Entre vários desses estudos, pode-se citar: Guimarães e Helene (2000,2007), Climent et al (2002Climent et al ( , 2007, Souza (2005), Guimarães et al (2011), Bandeira et al (2015), Moradllo (2017), Savoye et al (2018) e Zhang et al (2020).…”
Section: Introductionunclassified