svelleffekten
Svelleffekten, often translated as the "swelling effect" or "bloating effect," is a phenomenon observed in certain types of concrete and mortar when exposed to specific environmental conditions. This effect is primarily associated with the presence of reactive aggregates, particularly those containing certain forms of silica like opal or strained quartz. When these aggregates come into contact with the alkaline pore solution of the cementitious material, a slow, expansive chemical reaction can occur.
This reaction, known as alkali-aggregate reaction (AAR), leads to the formation of an expansive gel. As the
While svelleffekten can be a concern in some concrete structures, especially those exposed to moist environments,