PENETRATION PROFILE OF CHLORIDE ION IN CRACKED REINFORCED CONCRETE
By P. Win, Makiko Watanabe, A. Machida. 2004
179 citations recorded by the source corpus.
A detailed observation on the penetration profile of chloride ions through and around a crack in reinforced concrete structures is described in this paper. Electron probe microanalysis (EPMA) and colorimetric tests were conducted on cracked specimens, which were exposed to NaCl solution at a temperature of 20 degrees C and a humidity of 60% RH, after being conditioned in the same condition for 2 months. Research parameters included water to cement ratio (w/c), single and multicracks, exposed direction, crack width, NaCl solution concentration and cover thickness. Increasing w/c led to a higher ingression rate of Cl- ions, not only from the exposed surface but also around the cracks. It was found that the penetration depth from the surface of the cracks was equal to or slightly higher than that from the exposed surface for higher w/c mixes of 0.45 and 0.65. The transportation of Cl- ion was strongly influenced by the bulk movement of the solution inside the concrete.
Subfields: Civil and Structural Engineering
View Paper: https://www.semanticscholar.org/paper/367eb630f7ff478353886459bd949e9b928039a0
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Civil and Structural Engineering
Citations in the corpus
- Modeling of the Influence of Transverse Cracking on Chloride Penetration into Concrete (2013, methodology): “In the COMSOL simulations, the user specifies the chloride diffusion coefficient in the bulk concrete, in a ‘damaged’ zone of concrete near the crack [21], and within the crack itself.”
- Influence of service loading and the resulting micro-cracks on chloride resistance of concrete (2016, background): “[11] suggested that chloride can readily penetrate into the concrete through an open crack.”