𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Assessment of simple methods of determining the free chloride ion content of cement paste

✍ Scribed by C. Arya; N.R. Buenfeld; J.B. Newman

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
565 KB
Volume
17
Category
Article
ISSN
0008-8846

No coin nor oath required. For personal study only.

✦ Synopsis

A range of possible techniques for assessing the "free" chloride ion content of hydrated cement pastes dosed with sodium chloride or calcium chloride have been investigated. The techniques are based on mixing powdered samples with a solvent and measuring the amount of chloride passing into solution. The values obtained have been compared with the chloride ion content of pore solution expressed from parallel specimens.

The results indicate that in the range of chloride additions considered several extraction techniques may be used to estimate the free chloride ion content of cement paste; the total chloride content will dictate the most appropriate extraction technique(s) to adopt.

📜 SIMILAR VOLUMES

Non destructive determination of the fre
Non destructive determination of the free chloride content in cement based materials
✍ B. Elsener; L. Zimmermann; H. Böhni 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 German ⚖ 187 KB

## Abstract A non‐destructive chloride sensitive sensor element for use in cement based porous materials is presented. The sensor element determines the activity of the free chloride ions in solutions and in porous cement based materials such as cement paste, mortar or concrete. The calibration in

Action of chloride ions on hydrated ceme
Action of chloride ions on hydrated cement pastes: Influence of the cement type and long time effect of the concentration of chlorides
✍ P. Gégout; E. Revertégat; G. Moine 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 323 KB

Two sets of neat paste samples, prepared with an ordinary Portland cement and a ternary blended cement (containing slag and fly ash), were stored in various corrosive solutions of different pH (11.5 and 13) and chloride concentrations (up to 20 g/1 of Cl'). Structural and textural alterations were i

Influence of chloride ions and pH level
Influence of chloride ions and pH level on the durability of high performance cement pastes
✍ Anik Delagrave; Michel Pigeon; Éliane Revertégat 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 978 KB

The resistance to chemical attack of low water to binder ratio pastes containing silica fume was studied by soaking small paste disks in three different pH controlled solutions, with or without sodium chloride, for periods of up to three months. The pastes were made using water to binder ratios of 0