Zvýšení trvanlivosti cementových kompozitů pomocí vodouředitelných hydrofobizací

Název projektu anglicky
Increasing the durability of cement composites using water-based hydrophobization
Anotace anglicky
If a concrete or other cementitious building structure is stressed by plastic shrinkage caused by drying, or by self-drying in the case of high-quality concretes, it may be damaged. This happens mainly due to non-compliance with measures to reduce unwanted shrinkage of concrete. Products that eliminate plastic shrinkage, such as hydrophobizations, can be the solution. However, the standard products are solvent-based, they contain about 70-90 wt.% of volatile solvents, which limits their effectiveness in shrinkage eliminating. Their annual consumption in the Czech Republic is in the hundreds of tons, and considerable amount of solvents, evaporate into the air. Water-based hydrophobic agents without the mentioned solvents are the solution, but its development is still in the beginning. Such compositions are based on a different chemical base and contain more dry matter, thus much more effectively reducing the plastic shrinkage of the cement-bound layers. Preferably, they contain water instead of solvents, the evaporation of which does not produce any toxic emissions.

Kategorie VaV
ZV - Základní výzkum
OECD FORD - hlavní obor
20101 - Civil engineering
OECD FORD - vedlejší obor
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OECD FORD - další vedlejší obor
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CEP - odpovídající obory <br>(dle <a href="http://www.vyzkum.cz/storage/att/E6EF7938F0E854BAE520AC119FB22E8D/Prevodnik_oboru_Frascati.pdf">převodníku</a>)
JN - Stavebnictví

Důvěrnost údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Systémové označení dodávky dat
CEP25-GA0-GA-R
Datum dodání záznamu
12. 3. 2025

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