WO2006102989A1 - Method for producing a flooring and concrete blank for producing same - Google Patents

Abstract

The invention concerns a method for producing a concrete flooring. Said method is characterized in that a base material for the flooring, preferably concrete, is enriched in particles to obtain particular optical properties, then said base material is used, in particular laid or cast to construct a flooring. The particles are at least partly exposed under the effect of the circulation of the flooring, thereby enabling an optical effect to be achieved at the flooring surface based on the particles used. The advantage of such a solution is that the laid flooring need not be manually or mechanically treated subsequently for the particles to be at least partly exposed. The invention also concerns a blank for producing such a type of flooring.

Description

A method for producing a soil cover and molding of concrete for producing such a soil cover

description

The invention relates to a method for producing a soil cover with special optical properties in the region of an upper side (visible side) thereof. Furthermore, the invention relates to a molding of concrete, in particular a paving slab or a paving stone, which is used in the method according to the invention.

As a rule, in the production of paving stones or paving slabs made of concrete with a specially designed visible side, a special manual or mechanical method is used, by means of which the aggregates embedded in the area of the visible side of the molding are partially uncovered. In this connection, it is known, for example, a chemical treatment of the upper side of the molding, by means of which the binder (cement) is partially removed and coarse aggregates are exposed. A comparable effect can be achieved if the top is washed out, brushed or blasted. Such treated products are known for example in the form of washed concrete slabs. Soil covers can be created from these products, such as roads, parking areas, pedestrian or cycle paths or the like. However, a disadvantage of the known products or processes for producing the same is that the respective after-treatment is time-consuming and therefore cost-intensive.

On this basis, the present invention seeks to further develop the known methods in order to produce the products in question in a simpler way.

To solve this problem, the invention proposes that a base material for the soil cover, preferably concrete, is enriched before curing with particles to achieve special optical properties, and that the base material then installed to a soil cover, in particular laid or potted, is what the Particles are exposed by traffic on the soil cover, in particular by walking on or driving, at least partially, the Achieving an optical effect on the surface of the soil cover in accordance with the particles used.

The claimed solution has the advantage that the laid soil cover 'no manual or mechanical aftertreatment to at least partially

Exposure of the particles must be subjected. After the invention

Processes can therefore be produced inexpensively soil coverings whose

Surface has special optical properties. The type of achieved

Effects depend on the one hand on the particular particles used and on the other on the particular concrete recipe.

Of course, the inventive method is not only suitable for the production of soil coverings made of concrete, but can also be used in asphalt coverings. Paving stones or paving slabs for producing the soil cover can also be produced by this process.

It is preferably provided that the particles are embedded only in a facing layer or wearing layer of the soil cover. The main body can therefore be produced inexpensively in a conventional manner.

In a preferred embodiment of the invention, it is provided that the soil cover is made of paving stones or paving slabs made of concrete, which have an attachment layer in the region of a visible surface, wherein the particles are admixed in the manufacture of paving stones or paving slabs exclusively the concrete for the facing layer. This approach has the advantage that the individual Formiinge need not be made on site, but can be pre-produced in known manufacturing facilities. In this way, the addition of the particles takes place under controllable conditions, which has a positive effect on the quality of the product.

An inventive molding for the preparation of the soil cover according to the method of the invention is analogous characterized in that in the region of a visible side of the molded article an attachment layer is arranged, wherein (only) the attachment layer particles to achieve special optical properties of the Surface of the molding has. After laying the molding, the particles are exposed by the traffic and thus achieved the visual effect on the surface of the molding.

In the formations may be paving slabs or paving stones or even smaller ornamental stones that do not have the same dimensions as conventional paving stones. In this way, conventional paving stones or paving slabs can be combined with moldings according to the invention in order to specifically achieve an effect in individual areas.

Preferably, the facing layer is homogeneously interspersed with particles over the entire cross section (in particular the entire height). In this way, the optical effect lasts for a long time, even if the topmost layer of the facing layer is removed by the traffic.

In a preferred embodiment of the invention it is provided that ultrafine particles of the material for producing the concrete for the facing layer are at least partially replaced by the particles. In this way, the concrete has a comparatively smooth surface (e.g., compared to washed concrete plates). On the other hand, this can be achieved by a very uniform effect on the surface of the molding.

In a development of the invention, it is provided that the particles have reflective or luminescent properties. In this way, a gloss or luminous effect can be produced on the surface of the molding.

Preferably, to achieve reflection effects, glass beads are used which are added to the concrete or base material. In particular, the glass beads have a size of 150 // to 900μ, preferably from 300μ to 600μ. Preference is given to glass beads or other particles having a size of up to 600μ, in particular 1 OOμ to 600μ. Alternatively, other metallic or non-metallic materials, for example based on plastics, can also be used as particles. The particles may also be formed as splinters or other non-circular bodies.

Further details of the invention will become apparent from the dependent claims and the description otherwise.

A preferred embodiment of the invention will be explained below with reference to the drawing. In this show:

Hg. 1 a paving stone with intent layer in a spatial representation,

Fig. 2 is a vertical cross section through the paving stone of FIG. 1, and

3 shows an enlarged section of the cross section according to FIG. 2.

FIGS. 1-3 show a paving stone 10 or cutouts thereof. The paving stone 10 consists of a (lower) base body 11 and a (top) attachment layer 12. An upper side 13 of the attachment layer 12 represents the visible surface (surface) of the paving stone 10. The base body 11 and attachment layer 12 are made of concrete in the present case.

A peculiarity of the paving stone 10 shown is that different concrete mixtures for the base body 11 and the attachment layer 12 are used. While the base body 11 is made of a concrete usual for paving stones, the concrete mixture for the attachment layer 12 has the peculiarity that glass beads 14 are mixed in at the location of the superfine aggregate (aggregate with grain size 0-2). The glass beads 14 may, for example, a size of 150 to 900 /; exhibit. Glass beads 14 having a size of 300 to 600 μ are preferably used. Another preferred size of the glass beads is in the range of less than 600μ, especially 100 /; - 600 //.

As particularly shown in the enlarged view of FIG. 3, the glass beads 14 are distributed homogeneously distributed throughout the concrete of the facing layer 12. The glass beads 14 are positioned like the Feinstzuschläge in the gaps formed between larger aggregates. Cement is used as a binder, as is usual with paving stones 10. Due to the glass beads 14 mixed into the concrete, the glass beads 14, which are partially exposed in the area of the upper side 13, reflect the ambient light cast onto the paving stone 10, so that a comparatively fine gloss effect is produced. Due to the small size of the glass beads 14, the effect achieved is more of a "silky" shine than a bright surface.

Of course, other particles may also be added to the concrete at the location of the glass beads 14 in order to be able to produce various optical effects on the upper side 13. Conceivable, for example, metallic or non-metallic particles or

Particles of plastic. The particles do not necessarily have a spherical shape

Have shape, but may also be in the form of threads, fibers, broken

Materials such as broken pieces, splinters or the like exist. Furthermore, other binders can be used as cement, such as (synthetic) resins. Of course, the paving stone 10 according to the invention may also be made of materials other than concrete, e.g. made of clay, asphalt or the like.

In the manufacture of the paving stone 10 is deviated from known methods for the production of paving stones 10 with attachment layer 12 such that the

Fresh concrete for the facing layer 12 instead of Feinstzuschläge the particles or

Glass beads 14 are added. When compacting the concrete for the facing layer 12, it must be ensured that the particles do not segregate but are evenly distributed in the concrete. After the setting of the concrete, the paving stone 10 can then be laid as usual to a soil cover. The

Dirt cover then has on its surface by the inventive

Paving stones 10 conditional optical effect, for example, the gloss effect described above. Of course it is also conceivable that not the total

Dirt cover from the paving stones 10 of the invention is created, but that they are placed only at specific locations within the soil cover.

A peculiarity of the soil cover created in this way is that no processing of the surface of the soil cover or paving stones 10 is required. The particles or glass beads 14 are through the traffic, so by Walking or driving, partially uncovered. Since the particles or glass beads 14 are distributed over the entire cross section or the entire thickness of the attachment layer 12, the effect is retained, even if the attachment layer 12 is partially removed as a result of the traffic stress. In contrast to a superficial coating of the soil cover or the paving stones 10, the solution according to the invention is therefore significantly more durable. The fact that the post-processing of the surface is eliminated, the costs are also reduced.

It is understood that in the method according to the invention not necessarily paving stones must be used. The method could also be used for asphalt floors, in which the topmost wearing layer of the facing layer 12 according to the invention corresponds.

In principle, the concrete mixture for the facing layer 12 can of course be varied. So it is e.g. conceivable that not the complete Feinstzuschlag is replaced by the particles.

Furthermore, the particles, in particular the glass beads 14, can be colored, clear, coated, vapor-deposited, etc. for the purpose of achieving optical effects or for technical reasons.

Another alternative results from modification of the manufacturing process. So it is e.g. conceivable that a visible side of the moldings is stamped with a stamp to change the structure or shape of the visible side. In particular, by imprinting elevations and / or depressions on the visible side, special optical effects can be achieved since the incident light is partially refracted differently by the structured surface.

A further advantage of the production method according to the invention or the corresponding shaped articles described at the outset is that the color quality or brilliance is increased. March 13, 2006/6224

LIST OF REFERENCE NUMBERS

10 paving stone

11 basic body

12 attachment layer

13 top

14 glass bead

Claims

claims 1. A method for producing a soil cover made of concrete, wherein a base material for the soil cover, preferably concrete, is enriched with particles to achieve special optical properties and wherein the base material then installed to a soil cover, in particular laid or potted, and wherein the particles through Traffic on the soil cover are at least partially exposed, to achieve an optical effect on the surface of the soil cover in accordance with the particles used. 2. The method according to claim 2, characterized in that the laid soil cover no manual or mechanical aftertreatment for at least partially exposing the particles is subjected. 3. The method according to claim 1 or 2, characterized in that the particles are embedded only in a facing layer (12) or wear layer of the soil cover. 4. The method according to claim 1 or one of the further claims, characterized in that the soil cover made of paving stones (10) or paving slabs made of concrete, which have a facing layer (12) in the region of a visible surface, wherein the particles in the manufacture of paving stones (10) or paving slabs are admixed exclusively to the concrete for the facing layer (12). 5. The method according to claim 1 or one of the further claims, characterized in that the particles are preferably homogeneously over the cross section of Attachment layer (12) are added mixed so that the achieved optical effect is maintained even after the wear of upper layers of the attachment layer (12). 6. The method according to claim 1 or one of the further claims, characterized in that the base material or the concrete for the attachment layer (12) glass beads (14) are added, in particular glass beads (14) having a size of up to 600 / y, preferably from 100 // - 600 //. 7. forming concrete for creating a soil cover according to the method of claim 1 or one of the further claims, characterized in that in the region of a visible side of the molded article an attachment layer (12) is arranged, wherein the attachment layer (12) particles to achieve special optical Has properties on the surface of the molding. 8. forming according to claim 7, characterized in that the attachment layer (12) is interspersed with particles over the entire cross-section. 9. Shaping according to claim 7 or 8, characterized in that Feinstkornanteile of the material for producing the concrete for the facing layer (12) are at least partially replaced by the particles. 10. forming according to claim 7 or one of the further claims, characterized in that particles with reflective properties in the concrete of Attachment layer (12) are embedded. 11. Forming according to claim 7 or one of the further claims, characterized in that particles with luminescent properties in the concrete of the facing layer (12) are embedded. 12. Shaping according to claim 7 or one of the further claims, characterized in that the particles have a size of 150 // to 900 //, preferably 300 // to 600 / v. 13. Shaping according to claim 7 or one of the further claims, characterized in that the concrete glass body, preferably glass beads (14).