𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Diffusion behavior of chloride ions in concrete

✍ Scribed by Tiewei Zhang; Odd E. Gjørv

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
623 KB
Volume
26
Category
Article
ISSN
0008-8846

No coin nor oath required. For personal study only.

✦ Synopsis

In the present paper, an analysis of the diffusion behavior of chloride ions in concrete is presented. In concentrated electrolytic aqueous solutions such as seawater or that typically used in laboratory experiments, the effect of ionic interaction may significantly reduce the chemical potential and thus the driving force of the diffusing species. Because of different drift velocities of the cations and chloride ions in the solution, the lagging motion of the cations will also retard the drift velocity of the chlorides. In addition, both the electrical double layer forming on the solid surface and the chemical binding may significantly interfere with the transport of the chloride ions. As a result, the diffusion behavior of the chloride ions in concrete is a more complex and complicated transport process than what can be described by Fick's law of diffusion.

📜 SIMILAR VOLUMES

Diffusion of chloride ions from seawater
Diffusion of chloride ions from seawater into concrete
✍ O.E. Gjørv; Ø. Vennesland 📂 Article 📅 1979 🏛 Elsevier Science 🌐 English ⚖ 498 KB

The rates of chloride diffusion from seawater into concrete made with different w/c ratios and different types of cements were studied. The effect of cathodic protection on the chloride penetration was also investigated. The effect of w/c ratio on the chloride content was limited mainly to a surfa

Kinetic method to analyse chloride diffu
Kinetic method to analyse chloride diffusion in various concretes
✍ R. Frey; T. Balogh; G.L. Balázs 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 650 KB

The diffusion of hydrated chlorine ions (Cg) in concrete is influenced by the porosity and the composition of hardened cement paste. Results of the experimental series demonstrate that the addition of aluminates, granulated blast furnace slag or fly ash to ordinary Portland cement considerably reduc

Diffusion of chlorides into concrete inf
Diffusion of chlorides into concrete influence of PFA quality
✍ R.K. Dhir; M.R. Jones; A.M.G. Senerirathe 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 592 KB

The influence of pfa quality, specifically alumina and glass contents and fineness, together with the effect of replacement ratio and content on the diffusion of chlorides in concrete have been investigated. It is shown that it is not the pfa quality per se that effects D but the quantity of pfa in