Hydrophobing dispersion gel having reduced active ingredient content, method for the production thereof, and use thereof for the hydrophobing of mineral materials

Abstract

The invention relates to a hydrophobing dispersion gel having a reduced active ingredient content, comprising the following components in relation to a total amount of 100 wt%: (A) 0.1 - less than 50 wt% alkyl trialkoxysilane, (B) 0.1 - 1.0 wt% branched polyacrylic acid, (C) 0.5 - 2.0 wt% trialkyl amine n-oxide, (D) 3.0 - 10 wt% non-ionic surfactant, and (E) 10 - 80 wt% water. The invention further relates to a method for producing the hydrophobing dispersion gel and the use of the hydrophobing dispersion gel for the hydrophobing of mineral materials.

Description

Technical field [0001] The present invention relates to a hydrophobic dispersion gel with a reduced active substance content and a method for producing the hydrophobic dispersion gel, and its use for hydrophobizing mineral materials. Background technique [0002] Cement stabilized materials, such as reinforced concrete seen in concrete buildings, are exposed to various environmental influences depending on their use. It is especially important for the functionality and durability of these materials, as well as for the components and buildings made from them, to resist the ingestion of saline solutions (such as deicing salts). Most of the commercially available deicing salt consists of table salt or rock salt, namely sodium chloride (NaCl). As a result of bringing the concrete components into contact with these aqueous chloride solutions, they are transported into the edge zone of the material by capillary suction. If chlorides reach the rebar, under certain conditions it may tr...

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Problems solved by technology

Dust or soot particles then deposit on these sticky films, which visually damage the surface

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