Use of polymer powder compositions that can be redispersed in water for loam construction materials

Abstract

The invention relates to the use of polymer powder compositions in loam construction materials. Said compositions can be redispersed in water, are devoid of emulsifiers and contain one or more film-forming polymers, one or more protective colloids, in addition to optional anti-caking agents.

Description

Invention field [0001] The present invention relates to the use of a water-redispersible polymer powder composition in loam building materials, especially loam dry mortar. The composition includes one or more film-forming polymers and one or more protective properties. Colloid and, if necessary, antiblocking agent. Background technique [0002] Loam building materials have been used as building materials for hundreds of years, especially for house construction. Loam is not a standardized building material and its composition varies depending on the source; it is usually a mixture of clay, silt (very fine sand) and sand, and it can also contain coarser components such as pebbles, gravel or stones , The clay content is about 10-30wt%. The advantages of loam building materials are their easy availability, simple processing, their high-moisture storage effect (a pleasant atmosphere in the house) and their ecological advantages (reusable). [0003] For these reasons, loam-based buildi...

AI Technical Summary

Problems solved by technology

[0004] However, the disadvantages of loamy building materials are their limited ability to withstand mechanical loads (low strength, i.e. low internal cohesion), sensitivity to water and moisture (not water resistance), and poor adhesion to various building substrates (adhesion Difference)