𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Studies of alkali-silica reaction. part 5. Verification of a newly proposed reaction mechanism

✍ Scribed by S. Chatterji; N. Thaulow; A.D. Jensen


Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
344 KB
Volume
19
Category
Article
ISSN
0008-8846

No coin nor oath required. For personal study only.

✦ Synopsis


To explain the roles of Ca(OH) 2 and alkali chlorides in alkali-silica reaction, it has been proposed that during the chemical reaction alkali and hydroxyl ions enter the reactive silica grains leaving behind Ca and chloride ions in the liquid


πŸ“œ SIMILAR VOLUMES


Studies of alkali-silica reaction, part
✍ S. Chatterji; N. Thaulow; A.D. Jensen πŸ“‚ Article πŸ“… 1988 πŸ› Elsevier Science 🌐 English βš– 244 KB

In this paper various practical implications of a recently proposed alkali-silica reaction mechanism have been expressed in a coherent fashion. Aspects of alkali-silica reaction considered are: long latency, sources of alkalies, relative aggressivity of sodium and potassium ions, reduction of expans

Studies of alkali-silica reaction. Part
✍ S. Chatterji; P. Christensen πŸ“‚ Article πŸ“… 1990 πŸ› Elsevier Science 🌐 English βš– 297 KB

It has been shown that expansion of mortar prisms, due to alkali-silica reaction, can be quantitatively related to their environment, i.e. alkali ion concentration and temperature by an equation of the type The physical significance of negative signs of dl/dC and dl/dT terms have been discussed. Th

Studies of alkali-silica reaction β€” part
✍ A. Damgaard Jensen; S. Chatterji; P. Christensen; N. Thaulow; H. Gudmundsson πŸ“‚ Article πŸ“… 1982 πŸ› Elsevier Science 🌐 English βš– 405 KB

The alkali-sillca reactivity of 35 different sand types have been evaluated by both the "German" and NaCl bath methods. The results show that although there is a general correlation between the results of these two methods, the evaluations of sand by the two methods are not identical. Analyses of th

Studies of alkali-silica reaction β€” part
✍ A.D. Jensen; S. Chatterji; P. Christensen; N. Thaulow πŸ“‚ Article πŸ“… 1984 πŸ› Elsevier Science 🌐 English βš– 475 KB

From an extensive petrographic investigation of concrete samples suffering from alkali-silica reaction, it has been hypothesized that a deliberately introduced air-bubble system will reduce expansion due to alkali-silica reaction. The above hypothesis has been tested using mortar bars made from 35 s

Studies of alkali-silica reaction: Part
✍ H. Strunge; S. Chatterji; A.DamgΓ₯rd Jensen πŸ“‚ Article πŸ“… 1991 πŸ› Elsevier Science 🌐 English βš– 255 KB

Recently a method for the detection of alkali-silica reactivity of sand has been proposed. In this method sand is digested in a mixture of Ca(OH)2 and saturated KCl for 24 hours. The OH ion concentration is determined by titration. The OH ion concentration for a control mixture without sand is deter