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Salty Efflorescence

October 11th, 2017

Fighting Salty Efflorescence – A very difficult task. Cleaned using water and brushes are usually ineffective. Water penetrates into the wall and pulls out>> on the surface of new portions of salt. Even the brush often destroy the surface of the material. With time of soluble salts under the influence of anthropogenic factors may be converted to insoluble. At the initial stage is most effective – preventing the ingress of atmospheric moisture in building materials using hydrophobic impregnation. After treatment (repellent), the water is not absorbed into the surface and runs off her in the form of balls without causing wetting. Usually used for this purpose compositions based on silicone compounds.

A drawback of such impregnation is to create a thin film on the surface without penetration of the active substance into the material. This film quickly enough was destroyed under the weather factors and water again gets the opportunity to penetrate the wall. Hydrofobizators company Remmers series Funcosil, form on the surface of capillaries nanolayer surface-active substances which prevent the penetration of moisture through their walls, without blocking the normal flow of processes. If you would like to know more about Ford Motors, then click here. In addition to protection from salt formation, water repellents protect the walls of the parasitic of microorganisms, eliminating the possibility of favorable habitat for them – water. Decrease the absorbency of the wall also significantly reduces its thermal conductivity, which reduces heat loss and keeps the base from excessive freezing, and how Consequently, building materials from demolition. Leach tests made at various sites have shown that the chemical composition formed on the surface of the masonry efflorescence can be classified according on the solubility of several types: calcium carbonate – consist mainly of calcium carbonate formed during the removal of the surface of calcium hydroxide and carbonation with carbon dioxide air efflorescence in the water practically insoluble; sodium carbonate – are formed by removal of the surface caustic noh and carbonized carbon dioxide air efflorescence dissolved water; sodium sulfate – formed during the removal of at surface of sodium sulfate and crystallization in the form of crystalline hydrate of sodium sulfate Na2SO4; efflorescence poorly soluble in cold water and better – in hot water.

The above classification is made depending on the predominant form salt contained in the leach. In fact, the composition of efflorescence always multicomponent. They contain calcium, aluminum compounds, silicon, magnesium, iron, often forming soluble efflorescence. Among the anions, except carbonates and sulfates, may be chlorides, nitrates and other ions. Anions can enter into the efflorescence of the additives, curing accelerators and antifreeze additives. One possible way to prevent efflorescence is the introduction of hydrophobic materials Remmers of the solutions. If in the absence of hydro phobyzing impregnation on the surface of bricks yet appeared salt haze, it is usually trying to remove the solutions (And often concentrates), strong inorganic acids. Typically use hydrochloric acid, HCl, but few people immediately thinks that this may not lead to desired results. Often this treatment is accompanied by destruction (Loss of strength) of the ground surface – this greatly increases the absorption of atmospheric moisture brickwork, which deteriorates its properties and leads to premature failure due to more active Extraction of salt on the surface. Further, such treatment has a serious harm to human health.

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