Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The chemistry of ‘alkali-aggregate’ reaction
AbstractTo clarify ideas about the alkali aggregate reaction, the reaction between sodium hydroxide and various forms of silica has been studied. Variations with time in the sodium, hydroxyl and silica concentrations in solution have been followed and the volume change of solid silica immersed in solution has been measured.If the silica is an absorbant and reactive form such as silica gel, there is an immediate drop in both sodium and hydroxyl concentrations. Subsequently, as the silica dissolves, sodium concentration rises again. Both the final concentration of dissolved silica and the volume expansion of solid silicate pass through a maximum at an intermediate total Si02/Na20 mole ratio.
The chemistry of ‘alkali-aggregate’ reaction
AbstractTo clarify ideas about the alkali aggregate reaction, the reaction between sodium hydroxide and various forms of silica has been studied. Variations with time in the sodium, hydroxyl and silica concentrations in solution have been followed and the volume change of solid silica immersed in solution has been measured.If the silica is an absorbant and reactive form such as silica gel, there is an immediate drop in both sodium and hydroxyl concentrations. Subsequently, as the silica dissolves, sodium concentration rises again. Both the final concentration of dissolved silica and the volume expansion of solid silicate pass through a maximum at an intermediate total Si02/Na20 mole ratio.
The chemistry of ‘alkali-aggregate’ reaction
Dent Glasser, L.S. (Autor:in) / Kataoka, N. (Autor:in)
Cement and Concrete Research ; 11 ; 1-9
15.09.1980
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Elsevier | 1991
Engineering Index Backfile | 1958
| Springer Verlag | 2021
| Springer Verlag | 2013
Alkali-aggregate reaction (AAR)
| TIBKAT | 2008