SOLUTIONS FOR DETERIORATION OF PLASTER - Ivas
Ivas Industria vernici

SOLUTIONS FOR DETERIORATION OF PLASTER - Ivas

SOLUTIONS FOR DETERIORATION OF PLASTER

Exposure to the weather and the way a building is used alters the equilibrium between “external cladding, plaster and finishing coat”. This phenomenon leads to deterioration and disintegration of the plaster and a loss of its mechanical properties, making it impossible to maintain the static and functional quality. Such disintegration and deterioration can also derive from direct or induced mechanical stresses. Much of these depend on the moisture present in the masonry, both derived from external (rainwater) and internal causes (vapour diffusion). These phenomena can cause changes in state and micro-variations in volume (freeze-thaw) and chemical and electrochemical phenomena (efflorescence, oxidation, chemical incompatibility). In the end, these can lead to physical pathologies (wash away, risk of cracks and fissures, swelling, mechanical erosion, detachment, disintegration) and biophysical pathologies (mould, mildew, algae and corrosion).

 
physical
physical
chemical
type of decay
substrate loss of adhesion
freeze/thaw
salt crystallization
chemical corrosion
causes
substrate not adequately prepared,
incompa bility between plaster and substrate,
mechanical stresses,
differentiated expansion
excessive plaster impermeability,
low porosity
salts dissolved in the mixture water,
salts dissolved in the rising damp,
salts dissolved in the rainwater
pollution, acid rain
effects
detachment, breakage, fissures
hair-line fractures, disintegration, swelling,
detachment
efflorescence, hair-line fractures,
disintegration, breakage
corrosion, disintegration, detachment,
loss of resistance and consistency
chemical
type of decay
chemical corrosion
causes
pollution, acid rain
effects
corrosion, disintegration, detachment,
loss of resistance and consistency
before
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after
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| BROCHURE

SOLUTION 1: TOWER® RASO-PROTECTIONPlaster restoration process

  Support: Painted, cementbased plaster with microcracks

  Support: Painted, cement-based plaster with loose parts

  Support: Cement-based plaster with microcracks and/ or loose parts

Products of the System

SOLUTION 2: TOWER® LIME PROTECTIONBased plaster restoration process

  Support: Lime-based plaster with microcracks and/ or loose parts; natural stone masonry

Products of the System
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img Ivas Industria Vernici Spa
  • Via Bellaria, 40
  • 47030 San Mauro Pascoli (FC) - Italia
  • ph. +39 0541 815811
  • fax +39 0541 815815
  • info@gruppoivas.com
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