Leakage/flooding
In addition to the ‘efflorescence’ that is often visible in masonry, leaching is leaching is also a cause of visual and technical deterioration, especially in older masonry.
For en lekmann er det vanskelig å skille mellom disse to fenomenene.
vanskelig.
Mens de lettløselige, oppblomstrende stoffene
hovedsakelig stammer fra forurensende tilsetninger i råmaterialene
til
bindemidler, tilslag og murstein og er for det meste
forekommer for det meste som svovelforbindelser i varierende mengder
utvasking har nesten alltid sin opprinnelse i hovedkomponenten i
alle mørtelblandinger.
hovedbestanddelen i alle mørtelblandinger, kalsiumhydroksid.
Unlike leaching, sintering mainly occurs in older masonry. masonry. in older masonry. They occur when rainwater containing carbon dioxide water can seep through the joint system and mortar over a long period of time. and mortar over a long period of time. The lime, which is already bound as carbonate, dissolves. The lime, which is already bound as carbonate, dissolves as bicarbonate, which after escaping onto the wall surface precipitates out again as insoluble carbonate (dripstone cave effect).
Acids must usually be used to remove limescale leaching and sintering acids must usually be used, as the basic substance consists of calcium carbonate calcium carbonate, which is not soluble in water.
To effectively prevent leaching, there must be
measures to prevent water from penetrating the masonry and
the flow of the grout
from flowing through.
These refurbishment and
cleaning measures
and cleaning measures should only be carried out by qualified professionals.
be carried out. However, a thorough damage analysis must be carried out in advance.
and damage analysis must be carried out in advance.
