Use of polymer powder compositions capable of redispersing in water for loam construction materials

Abstract

The present invention relates to the use of polymer powder compositions in loamy soil building materials. Said compositions are redispersible in water, contain no emulsifiers, and comprise one or more film-forming polymers, one or more protective colloids and optionally an antiblocking agent.

Description

field of invention [0001] The present invention relates to the use of a water-redispersible polymer powder composition comprising one or more film-forming polymers, one or more protective Colloid and, if necessary, antiblocking agent. Background technique [0002] Loam building materials have been used for centuries as building materials, 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 , and its clay content is about 10 to 30 wt%. The advantages of loam building materials are their easy availability, simple processing, their high water storage effect (pleasant atmosphere in the house) and their ecological advantages (reusability). [0003] For these reasons, loamy building materials are now increasingly used again in the form of wet mortars, especial...

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)