DE102006030110A1 - Floor pavement/final floor covering comprises calcite, calcium carbonate, rounded marble sanding/granulates, rounded basalt/andesite, color pigments, color paste, solvent-free, water-dispersed epoxide and/or resin/polyurethane resin - Google Patents

Abstract

Floor pavement/final floor covering comprises calcite, calcium carbonate, rounded marble sanding/granulates, rounded basalt/andesite, color pigments, color paste, solvent-free, water-dispersed epoxide resin/polyurethane resin, acrylate resin dispersion, methacrylacrylate and self-leveling plastic reinforced concrete filler. The floor pavement/final floor covering shows noise- and heat insulating, crack-insensitive, quick drying property and is suitable for instant under-floor heating and open to diffusion. Floor pavement/final floor covering comprises calcite, calcium carbonate, rounded marble sanding/granulates, rounded basalt/andesite, color pigments, color paste, solvent-free, water-dispersed epoxide resin/polyurethane resin, acrylate resin dispersion, methacrylacrylate and self-leveling plastic reinforced concrete filler. A smooth, thin-layered floor pavement/final floor covering is produced with a thickness of 8 mm and exhibits less weight. The floor pavement/final floor covering shows noise- and heat insulating, crack-insensitive, quick drying property and is suitable for instant under-floor heating and open to diffusion.

Description

The The invention relates to a screed according to the preamble of the claim 1.

Screeds in their various fields of application and material compositions are known ( see. Pages 62-70 of the book "screed and floor coverings in building construction" by Friedrich Eichler, published in 1955 in VEB Verlag, Berlin ) and DIN 18560 regarding their properties and requirements.

screeds are, according to the current state of the art, from cement, aggregates and water produced, the mixing ratios depending on the used Screed are different.

screeds serve to remove unevenness in the substrate (such as concrete) for later problem-free recording of floor coverings or end coverings to eliminate and, by appropriate insulation, thermal insulation values and impact sound to improve. Floating screed ensures the decoupling of flooring and base to prevent cracks.

To The current state of the art are mainly wet screed like the Cement screed and anhydrite screed as compound screeds, screed on Separation / insulation, on underfloor heating and on installation / cavity floors used.

cement screed has high Strength, but is due to its required thickness of at least 35 mm, the resulting high weight, the strong water content and the resulting long drying time of 20-30 days to maturity and the risk of cracking when drying (shrinkage cracks) problematic. Furthermore is the use of underfloor heating only after a heating process after approx. 14-21 days (with rapid screeds after 3-4 days) possible.

anhydrite, i.d.R. consists of calcium sulfate (anhydrite binder), gypsum, aggregates, water as well as sand and is also afflicted with the aforementioned problems. It must not be used as screed or as final covering in the wet area and also not used as a composite screed with rising damp become.

Both Wet screed systems are due to the water content, the weight, the drying time and the risk of cracking in the field of old building renovation / renovation difficult to use.

she are pumped into the building with the addition of water and are self-leveling ..

The Problem of the wet screeds are those from the high water content in the Screed resulting in too long drying times up to Belagreife, which crack formation in the screed or end coating and lead to a high building moisture. With the building moisture is a time delay in the further processing connected.

One Another problem is the high weight of the wet screeds. This results from the construction height of about 35-65 mm and the usual used materials.

Out these reasons can, According to the current state of the art, wet screeds only used there where the statics or construction permits.

One Another problem is that the wet screeds produced today only conditionally, floor heating suitable because they burn too fast due to the fading behavior tear.

One Another problem is that in so-called seamless calcium sulfate screeds (Liquid screed) due the drying problem due to the different screed thickness inside a building that different drying conditions within a building, uneven ventilation, increased heating by selective solar radiation, different heating conditions with different thermal expansions et al and the resulting dry shrinkage to residual stresses can come in the screed. this leads to then to cracking and problems with subsequently applied Flooring systems.

So-called Quick marks, which is a shorter Drying time are usually not economical.

The protection specified in claim 1 invention is based on the problem that thin-layer, crack-insensitive, diffusion-open and jointless screeds / Endbeläge with very low water content and used in old building renovations, with low weight (of about 15-20 kg / m ² ), today without time delay can also be used in underfloor heating and are immediately ready for use.

This Problem is solved by the features listed in the protection claim 1 solved.

The advantages achieved by the invention are in particular that in the production of screed / end coverings consisting of calcite and / or calcium carbonate and / or rounded marble sand / granules and / or basalt / andesite, also rounded and or color pigments and / or Color pastes by an epoxy resin / polyurethane resin, / also water-dispersed, dispersion acrylate resin and / or methacrylacylate and self-leveling, also plastic-coated filler bound screed mass, a seamless, open diffusion screed / end coating is produced.

One The advantage is that mentioned by the use of the protection claim 1 solvent-free Synthetic resins and hardeners / putty only such a low no water content is included that no Bauabdichtungsmaßnahmen necessary, no water can penetrate into the building and no "shrinkage process" during curing too Cracks leads.

By the use of solvent-free or water-dispersed synthetic resins as a binder in screed coating this can be made in a small layer thickness from 8 mm.

One Another advantage is that the flooring without time delay on underfloor heating can be used, since it is open to diffusion. The solvent-free Binders improve elasticity and flexural strength the screed / Endbelages. The screed / finish is within less Hardened and days walkable and can already on the 2nd day with dry grinding machines be sanded with suction, this creates no dirt / dust.

One Another advantage is that the inventive, seamless, vapor-permeable screed / finish due to the low layer thicknesses Renovations, extension and conversion work and wherever static establish only low installation heights / strengths are possible and where problematic substrates, are also specified with low load capacity on site, used can be. Due to the additives mentioned becomes a very authentic terrazzo achieved that the "usual" cement-bound Terrazzo is in no way inferior.

When embodiment The invention will hereinafter be a screed / end coating with the binder Epoxy resin and hardener and basalt / andesite granules, splintered and rounded.

For the production of the jointless screed / finish will be on a cleaned surface of tiles or natural stone or screed or concrete or insulation or Separator or raised floor a primer applied to the Place is made. The mixing ratio of Primer is 2 parts by weight of epoxy resin and 1 part by weight of epoxy hardener. The Primer is applied to the ground using a lambskin roller. On this primer is a quartz sand with a grain of 0.3-2 mm sprinkled before the primer has cured. The advantage of substrate preparation from epoxy resin is in excellent adhesion to the substrate. The subsequent diversion with quartz sand the optimal adhesion of the jointless screed is used or Endbelages on the ground. In addition, by the epoxy resin primer the substrate solidifies in the uppermost zone.

Within of 24 hours after applying the primer will be in place and Place mixed mass of granules in a thickness of 8-15 mm or stronger seamlessly applied. This mass is compacted and smoothed.

With Exception necessary and depending on the floor plan to be determined Baudehnungsfugen this can Screed or end coating seamless over arbitrarily large surfaces be moved.

At the next Day becomes self-leveling. also plastic-coated putty pumped into the construction or mixed on-site and scrapped and on subtracted from the grain. The next Day becomes the jointless screed or end coating in the dry grinding process processed according to the use as a screed or as a final covering and is ready for the Inclusion of all commercial Floor coverings or is sealed with epoxy / PU resin or wax or wax emulsion impregnated.

The Invention provides opposite the conventional one Screed a considerable simplification and thus cheapening of Laying, because of the low layer thickness of the screed or end coating saved considerable time in laying and further use can be.

Claims (1)

Screed, at the same time end coating consisting of calcite and / or calcium carbonate and / or rounded marble sand / granules and / or basalt / andesite, also rounded and or pigments and / or color pastes characterized in that as a further addition solvent-free epoxy resins / polyurethane resins, also water-dispersed. , and / or dispersion acrylate resin, and / or methacrylacrylate and self-leveling, also plastic-coated fillers, and a jointless, thin-layered, in thickness from 8 mm, with low weight produced, impact sound and heat insulating, crack-insensitive, quick-drying, immediately floor heating suitable, permeable screed or end coating is produced.