Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F15/00—Flooring
  • E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
  • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
  • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
  • C04B28/06—Aluminous cements
• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
  • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
  • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
  • C04B41/5076—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with masses bonded by inorganic cements
  • C04B41/5079—Portland cements
• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
  • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
  • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
  • C04B41/5076—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with masses bonded by inorganic cements
  • C04B41/508—Aluminous cements
• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
  • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
  • C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
  • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
  • E04B1/66—Sealings
• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
  • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
  • C04B2111/00482—Coating or impregnation materials
  • C04B2111/00543—Coating or impregnation materials for wet surfaces

Definitions

• the present invention is the use of a flexible after curing curing slurry for the aftertreatment of a concrete body.
• the CM measurement is suitable for determining the moisture content of mineral building materials.
• the measurement process can be carried out completely uncomplicated on site and provides reliable results. Since a sample has to be taken for the measurement, the CM method is a "destructive" method, in which a measuring sample of about 10 to 50 g is taken from the mineral component to be tested, depending on the suspected moisture penetration Precise weighing of the sample is then pulverized and, with the addition of 4 steel balls, mixed with an ampoule of calcium carbide in a steel bottle with a manometer by vigorous shaking. bids with water releases acetylene gas.
• the curing time is used as a criterion for the ready-made.
• DIN 18 157 defines the required time span between the freshly applied substrate and the occupation with tiles.
• For laying with cementitious tile adhesives on concrete substrates a period of 6 months and on cement screeds of 28 days for the laying of tiles and slabs with cementitious tile adhesives is to be adhered to.
• the waiting times and their characteristics are generally dependent on various factors, such as thickness Concrete body, the W / Z (water / cement) value of the concrete body, the humidity and temperature, etc. is dependent. Further information on the proof of use can be found in the BEB leaflet "Assessment and preparation of substrates" and in DIN 18560 Part I "Screeds in construction - terms, general requirements, testing".
• the material composition of commonly used flexible sealing slurries describe, for.
• the binder system consists in two-component systems of cement and a liquid aqueous polymer dispersion and in one-component systems of cement and a polymer dispersion powder.
• a plastic / cement ratio of> 0.6 is required.
• the flexibility of the sealing slurries serves to bridge potential surface cracks in the concrete body. This means that the waterproofness achieved by the sealing slurry can not be affected or lost by the formation of cracks. This is the difference between flexible sealing slurries and conventional rigid mineral sealing slurries.
• the post-treatment of concrete bodies serves to improve the properties of the treated body, which is usually a cement screed or other substrate.
• the strength development, the shrinkage behavior and the tendency of the bodies treated with it to crack are improved.
• the aftertreatment can be carried out according to the prior art using a variety of methods:
• so-called curing agents are applied or else films are applied.
• the published patent application DE 2 042 735 describes a plastic film serving for sealing purposes on buildings, which has rib webs projecting on one side with respect to the film. This as plaster or foil
• the plastic film which can be used is designed as a wave-web foil, wherein the rib webs projecting on one side are designed as waveguide ribs which continue uninterruptedly in the longitudinal direction of the film and which, in plan view, are substantially meandering.
• CH 630 984 describes a film which has been folded to form anchoring projections and which is sunk into the uncured concrete.
• This Isolierveritate which is particularly attached to interior walls, has at its rear side and at a mutual distance from each other extending fastening ribs.
• the cladding preferably consists of an elastic foil in which the fastening ribs and the joints are formed by folding. In this way, the Isolierveritate can be stretched when mounted on the wall transverse to their ribs to the desired cover length.
• Described is a method for treating a concrete body to prevent evaporation of not readily bound water.
• the treatment is carried out with the help of a special leaf material, which is applied to the not quite fresh concrete body and firmly connected to it. This is done by pressing the sheet material, which may be a foil, into the concrete body with a surface having structural parts.
• the purpose of the described method for the aftertreatment of fresh concrete is to be seen in the fact that concrete components develop by drying out through the concrete surface through fading and thus deform. These deformations can subsequently cause fracture of the concrete structure and cracking resulting in static failure and wet penetration. The drying and the fading phenomena should be prevented by the application of the sheet material.
• a disadvantage of the known process for the aftertreatment of concretes by ringers is that they can not remain permanently on the treated substrate due to the usually adhesion-resistant surfaces. Thus, for example, no further coverings or surface finishes in the form of plaster or the laying of tiles and plates can be applied. However, such additional surface finishes can take over a reliable and permanent sealing of the building against water penetration, which is excluded due to the disadvantages of Curing means described, however.
• a disadvantage of the use of conventional and used for post-treatment film materials is that they also do not remain permanently connected to the ground. Rather, they would have to be removed after curing of the concrete body in the rule.
• the application of a subsequent surface coating is not possible due to the material properties of the film materials.
• the sheet material used according to DE 103 453 979 it is considered difficult to process it, since it is bonded to the concrete body mandatory, which represents an additional step.
• the sheet material as needed to adapt the structures of the concrete body for example by cutting. If tiles and boards are finally applied to the sheet material described, an additional gluing step must follow.
• the object of the present invention is to provide a suitable new system for the aftertreatment of a concrete body having a defined residual moisture content.
• the system in question should be inexpensive. The main focus was on reliably preventing the penetration of water from outdoor areas into a concrete body.
• a subsequent rigid surface coating such. B. by tile and tile coverings, be possible within a short period of time after completion of the concrete body.
• the term "elasticizing” is understood to mean the plasto-elastic behavior of the plastic component, which can subsequently deform when tensile forces are applied, which usually manifests itself in a stretching behavior but not completely back to its original shape, but there remains a slight deformation.
• the present use preferably a variant in which the sealing slurry contains as component a) a mortar, preferably a cement mortar and in particular a fine cement mortar.
• the cement component may, according to the invention, be a Portland cement, a high-alumina cement or mixtures thereof.
• the present invention also encompasses a variant in which the sealing slurries as component b) comprise at least one member of the series homo-, co- or terpolymers based on styrene, butadiene, vinyl acetate, vinyl propionate, vinyl laurate, vinyl versatate, vinyl chloride, vinylidene chloride, ethylene , Acrylates and mixtures thereof.
• the flexible sealing slurry should be two-component, with the components a) and b) being present separately.
• the property of the two-component nature thus relates primarily to the two components a) and b) of the sealing slurries.
• component b) is a liquid polymer dispersion having a preferred polymer content of not more than 60% by weight.
• the proportion of polymer should not fall below 20% by weight and preferably between 25 and 50% by weight, values of 30, 40 and 45% by weight being regarded as particularly preferred.
• the flexible sealing slurry according to the invention additionally comprises at least one member selected from the group of fillers, additives, pigments, flow agents, thickeners, rheological aids, setting accelerators, setting retarders, defoamers, wetting agents, dispersants, plasticizers, film formers and surfactants.
• fillers silicates and carbonates with a particle size of 0.06 mm to 0.5 mm pigments based on titanium dioxide or iron hydroxide, rheological aids such as starch ethers, cellulose fibers, polyacrylamides, phyllosilicates, setting accelerators such as lithium carbonate, calcium carbonate, calcium nitrate Calcium formate, retardants such as alhaliphyrophosphates, complex phosphates,
• the flexible sealing sludge according to the invention develops its advantageous properties, in particular on concrete bodies which have a residual moisture content of> 4 CM-%.
• the claimed use is not limited to certain concrete bodies. However, application to cement screeds or to balcony and terrace surfaces has proven particularly suitable.
• the underground should be accessible in general form, d. H. be resilient to a certain weight limit.
• the flexible sealing slurry is usually on the nachzubehandelnden concrete body, with the help of z. As smoothing trowels or tooth scrapers applied.
• the layer thickness should achieve a minimum layer thickness.
• the present invention includes a wet layer thickness of the sealing slurries of> 1, 0 mm, preferably> 1, 5 mm and particularly preferably> 2.0 mm.
• the concrete body may be a cement screed and in particular a screed on a release liner or a screed on insulating layer. Screeds on separating layer are on a hafthindernden edition, the so-called release layer, on z.
• the separating layer is usually carried out as a moisture or vapor barrier. Screeds on insulating layer, so-called floating screeds are applied to an insulating layer.
• the flexible sealing slurries according to the use according to the invention should cover the surface of the concrete body to> 80%, preferably to> 90% and particularly preferably to> 95% without gaps.
• the present invention also takes into account that the sealing slurry applied to the concrete body is provided with a rigid layer and preferably with tiles.
• the mentioned rigid layer can be applied to the not yet cured sealing slurry.
• the subsequent coating is applied after hardening of the sealing slurry.
• a covering of tiles and slabs is laid with a conventional tile adhesive.
• the aftertreatment in wet-stressed area and preferably against leachate, against pressurized water and spray has been found.
• the advantage of the use of the invention is clear, since thus a simultaneous treatment of the concrete body, a bonding of the plate covering, a seal against penetrating or rising water, and a decoupling of the substrate is achieved by the rigid coating.
• the invention proper use on cement screeds.
• the decoupling of the screed from the rigid topping prevents deformation of the screed. Deformation occurs when a rigid top coat is applied to an uncured screed. Due to shrinkage due to shrinkage of the screed and the anti-shrinkage top layer, the screed area facing away from the upper side of the screed is shortened. The screed shows a convex deformation or bulge, which can lead to damage.
• the product PCI Seccoral ® 2K PCI Augsburg GmbH was used.
• This product is a two-component composition consisting of a modified acrylate dispersion as a liquid component and a special cement mortar with sealing plastics as a powder component.
• a cement screed (4 cm layer thickness) was applied to release layer.
• the area was 2X2m; the insulation consisted of 3 cm thick Styrofoam ® panels, which were covered with PE-FoNe. Edge trim strips were applied at the edges.
• the sealing slurries were applied according to the manufacturer's instructions using a tooth trowel and smoothing trowel in a wet layer thickness of 3 mm. The applied surface was cured after a further 16 hours and fully accessible.
• a cement screed (4 cm layer thickness) was applied to release layer.
• the area was 2X2m, the insulation consisted of 3 cm thick Styrofoam ® panels, which were covered with PE-FoNe. Edge trim strips were applied at the edges.
• the sealing slurries were applied to it with a tooth trowel and smoothing trowel in a wet layer thickness of 3 mm according to the manufacturer's instructions.
• the surface thus applied was cured after a further 16 hours and accessible.
• a tile topping consisting of 60X60cm fine stone tile with a conventional Tile adhesive (PCI FT adhesive mortar) laid. Another 16 hours later, the joints (joint width 3mm) were closed with grout.
• the screed surface without the aftertreatment with sealing sludge showed a bulge in the center of the screed (convex curvature).
• the bulge is caused by the fact that the cement screed shrinks in the course of its hardening (water loss but above all chemical shrinkage).
• the combination of the screed with the rigid and non-shrinking surface covering made of fine stoneware hinders the shrinkage on the screed surface facing the tile covering.
• the shortening of the screed is thus lower at the surface than at the surface facing away from the underside of the screed. It comes to the bulge of the screed, d. H. the screed center is higher compared to the corner and edge area.

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Ceramic Engineering (AREA)
• Structural Engineering (AREA)
• Materials Engineering (AREA)
• Organic Chemistry (AREA)
• Architecture (AREA)
• Inorganic Chemistry (AREA)
• Civil Engineering (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Sealing Material Composition (AREA)
• Adhesives Or Adhesive Processes (AREA)
• Finishing Walls (AREA)
• Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
• Aftertreatments Of Artificial And Natural Stones (AREA)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

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• 2008
  • 2008-04-29 DE DE102008021451A patent/DE102008021451A1/de not_active Withdrawn
• 2009
  • 2009-04-17 CA CA2721223A patent/CA2721223A1/en not_active Abandoned
  • 2009-04-17 AU AU2009242229A patent/AU2009242229A1/en not_active Abandoned
  • 2009-04-17 WO PCT/EP2009/054572 patent/WO2009132967A1/de active Application Filing
  • 2009-04-17 US US12/936,937 patent/US20110033625A1/en not_active Abandoned
  • 2009-04-17 CN CN2009801150060A patent/CN102015581A/zh active Pending
  • 2009-04-17 JP JP2011506649A patent/JP2011518753A/ja active Pending
  • 2009-04-17 EP EP09738011A patent/EP2271597A1/de not_active Withdrawn

Non-Patent Citations (1)

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