EP3768909A1 - Roof tile and method for producing a roof tile - Google Patents
Roof tile and method for producing a roof tileInfo
- Publication number
- EP3768909A1 EP3768909A1 EP19711264.2A EP19711264A EP3768909A1 EP 3768909 A1 EP3768909 A1 EP 3768909A1 EP 19711264 A EP19711264 A EP 19711264A EP 3768909 A1 EP3768909 A1 EP 3768909A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roof tile
- hydrophobic
- roof
- impregnation
- fresh concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 51
- 238000005470 impregnation Methods 0.000 claims abstract description 40
- 239000003795 chemical substances by application Substances 0.000 claims description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 239000004575 stone Substances 0.000 claims description 24
- 230000004888 barrier function Effects 0.000 claims description 18
- 239000004890 Hydrophobing Agent Substances 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 5
- 230000036571 hydration Effects 0.000 claims description 3
- 238000006703 hydration reaction Methods 0.000 claims description 3
- 239000011449 brick Substances 0.000 claims description 2
- 229910000077 silane Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 20
- 239000003921 oil Substances 0.000 description 17
- 235000019198 oils Nutrition 0.000 description 17
- 238000000034 method Methods 0.000 description 11
- 239000010410 layer Substances 0.000 description 8
- 244000005700 microbiome Species 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 150000004702 methyl esters Chemical class 0.000 description 5
- 239000005871 repellent Substances 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 241000195493 Cryptophyta Species 0.000 description 4
- 235000019486 Sunflower oil Nutrition 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000036541 health Effects 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 239000002600 sunflower oil Substances 0.000 description 4
- PHYFQTYBJUILEZ-IUPFWZBJSA-N triolein Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/CCCCCCCC)COC(=O)CCCCCCC\C=C/CCCCCCCC PHYFQTYBJUILEZ-IUPFWZBJSA-N 0.000 description 4
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 3
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 3
- 241000195940 Bryophyta Species 0.000 description 3
- 239000005642 Oleic acid Substances 0.000 description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 3
- 239000002480 mineral oil Substances 0.000 description 3
- 235000010446 mineral oil Nutrition 0.000 description 3
- MSRJTTSHWYDFIU-UHFFFAOYSA-N octyltriethoxysilane Chemical compound CCCCCCCC[Si](OCC)(OCC)OCC MSRJTTSHWYDFIU-UHFFFAOYSA-N 0.000 description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 235000015112 vegetable and seed oil Nutrition 0.000 description 3
- 239000008158 vegetable oil Substances 0.000 description 3
- 235000019484 Rapeseed oil Nutrition 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 231100001261 hazardous Toxicity 0.000 description 2
- 230000005661 hydrophobic surface Effects 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 240000002791 Brassica napus Species 0.000 description 1
- 235000004977 Brassica sinapistrum Nutrition 0.000 description 1
- 206010061217 Infestation Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D1/00—Roof covering by making use of tiles, slates, shingles, or other small roofing elements
- E04D1/12—Roofing elements shaped as plain tiles or shingles, i.e. with flat outer surface
- E04D1/16—Roofing elements shaped as plain tiles or shingles, i.e. with flat outer surface of ceramics, glass or concrete, with or without reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
- B28B5/02—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type
- B28B5/026—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of indefinite length
- B28B5/028—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of indefinite length the moulding surfaces being of definite length, e.g. succession of moving pallets, and being continuously fed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/384—Treating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/388—Treating surfaces of moulds, cores, or mandrels to prevent sticking with liquid material, e.g. lubricating
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- 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
- C04B41/46—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 organic materials
- C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
- C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
- C04B41/4922—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as monomers, i.e. as organosilanes RnSiX4-n, e.g. alkyltrialkoxysilane, dialkyldialkoxysilane
-
- 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
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/62—Coating or impregnation with organic materials
- C04B41/64—Compounds having one or more carbon-to-metal of carbon-to-silicon linkages
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/002—Provisions for preventing vegetational growth, e.g. fungi, algae or moss
-
- 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
- C04B2111/00586—Roofing materials
- C04B2111/00594—Concrete roof tiles
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
Definitions
- the invention relates to a roof tile according to the preamble of claim 1 and to a method for producing a roof tile according to claim 7.
- roofing stones are usually scaly, overlapping laid in First-eaves line, wherein each of the foot-side end of the ridge-side Dachstein is supported by the head end of the eaves-side Dachstein. Even if the support surfaces of the two roof tiles lie on each other as flat as possible, a small gap remains between the roof tiles, for example due to surface irregularities. Based on a capillary effect and, for example, during driving rain, water can penetrate into this gap and thus into the pores of the roof tile or even into the roof itself.
- Moisture but also an increased colonization with microorganisms, such as algae, mosses and lichens, on the latently moist roof tiles.
- the patent application DE 35 22 846 A1 shows a method for the production of roof tiles in the extrusion process, in which a layer of fresh concrete is applied to an endless strand of sub-forms. This fresh concrete layer, which is more endless
- Fresh concrete strand is formed, is then compacted and profiled, so that an endless fresh concrete strand is formed, whose cross section corresponds to that of a Dachstein.
- This is then cut in a cutting station into individual roof stone blanks.
- the Dachsteinrohling is preferably separated by a taking place at its head-side end straight cut from the fresh concrete strand, while it is processed at its foot-side end with a circular blade.
- the round cut knife separates a narrow strip of fresh concrete and at the same time forms a rounding from the surface of the roof tile blank to the foot-side edge.
- the fresh concrete is compacted in the area of the round section, thus reducing the porosity of the surface. This should sometimes the settlement of microorganisms, such as
- a manufacturing method in which the roof stone is provided on its upper side with a fine-grained, mineral cover layer is described for example in DE 39 32 573 C2.
- a cover layer By this cover layer, a flat, fine-pored surface is to be created, whereby the gap between two roof tiles in the uncovered state should be reduced.
- the object of the invention is therefore to eliminate the existing disadvantages of the prior art and to provide a Dachstein, where a settlement of
- the Dachstein should have an aesthetic appearance of a Dachstein covered roof area long term
- a roof tile for an overlapping roofing of a surface having a first and a second support surface, wherein the first support surface on an upper side of the Dachstein, in a region of a head-side end, and the second support surface on an underside of the
- the invention provides that at least the underside of the roof tile in the region of the second support surface has a hydrophobic impregnation.
- An impregnation is a protective layer of an impregnating agent containing the
- Impregnations resistant to mechanical stresses such as when laying the roof tiles is the case, since the walls of the pores are not directly exposed to mechanical stresses and also small abrasion does not damage a completely closed coating. Rather, even with minor damage to the surface impregnation of the hydrophobic character of the impregnation layer is maintained, so that a water absorption is further significantly reduced.
- the hydrophobic impregnation comprises at least one hydrophobing agent which comprises an alkoxysilane and / or alkoxysiloxane compound which is in particular hydrophobic.
- Alkoxysilane compounds have the general structure formula:
- R is an organic radical such as an alkyl group.
- Alkoxysiloxane compounds have the general structural formula:
- R is an organic radical such as an alkyl group.
- the hydrophobic impregnation comprises at least one oil component and a hydrophobizing agent.
- An impregnating agent comprising at least one oil component and a hydrophobing agent can be easily applied to a surface of the roof tile.
- the impregnating agent is applied to the sub-forms for Dachsteinher too before the manufacture of the Dachsteinrohlinge, whereby after completion of the Dachstein and separation of the Dachstein from the lower mold, the hydrophobic
- Impregnating remains as a hydrophobic impregnation on the underside of the Dachstein.
- the oil component has at least one oil or oil derivative.
- the oil component can act, for example, as a release agent between the lower mold and the Dachsteinrohling made of fresh concrete.
- oils usually already have a hydrophobic character, so that the use of an oil component as a carrier for a hydrophobing agent supports the hydrophobic character of the impregnation.
- impregnating agents based on at least one oil component can be processed much more easily than, for example, organic solvents as a carrier for a water repellent, because they have a high flash point and are usually hardly harmful to health.
- an organic solvent is used as a carrier for a hydrophobing agent, it must be ensured in the production plant and in the warehouse that Solvent vapors are sufficiently extracted, so that no risk of explosion or other health risk to the employees within the manufacturing plant arises.
- the oil component comprises a vegetable oil, an esterified vegetable oil, oleic acid and / or mineral oil.
- esterified rapeseed oil and / or sunflower oil in particular in the form of the methyl ester used. This has good properties for the production of a roofing stone with impregnation and as a release agent and is also environmentally friendly, not hazardous to health and cost.
- the hydrophobic impregnation causes no color change of
- the hydrophobic impregnation is applied in the region of the second support surface in the transverse direction of the roof tile over an entire width of the roof tile.
- essentially the entire underside of the roof tile has the hydrophobic impregnation.
- This preferred embodiment can be particularly simple and inexpensive hers tone, also a best possible hydrophobic effect of the surface of the underside of the
- the impregnation on a portion or the entire underside of the roof tile reduces the water adsorption by at least 50% over an unimpregnated portion of the underside of a comparative roof tile.
- the absorbed amount of water in an impregnated area to a non-impregnated area after 24 hours of exposure to moisture.
- the measurement can be carried out on fresh and weathered roof tiles.
- the second support surface is formed by a water barrier, which has the hydrophobic impregnation.
- the second support surface which is arranged on the underside of a roof tile at the foot end, is formed by a water barrier.
- This water barrier prevents the ingress of water, for example in the form of driving rain, effectively, so that no moisture can penetrate into the roof.
- the hydrophobic impregnation acts synergistically.
- the invention relates to a process for the preparation of an inventive
- the top of the bottom mold corresponds to the side on which the endless strand of fresh concrete is applied.
- the area of the upper side of the lower mold corresponds to that hydrophobic impregnating agent is applied, the area that forms the second support surface of the finished roof tile.
- the impregnating agent absorbed by the fresh concrete which wets areas of the underside of the roofing stone blank after removal of the roofing stone blank, forms the impregnation of the roofing tile.
- the hydrophobic impregnating agent is applied to the lower mold prior to extrusion of the strand of fresh concrete.
- the impregnating agent is automatically transferred to the underside of the roofing stone blank during extrusion, without the finished roof tile blank or roof tile having to be impregnated in a separate step.
- the production method of this type is thus quick and inexpensive to carry out.
- the roof tiles produced in this way have a uniform hydrophobic impregnation, which ensures a reduced water absorption of the finished roof tiles, in particular on the underside of the roof tiles.
- the impregnating agent is applied to the entire upper surface of the lower mold.
- a roof stone is obtained whose entire underside has the hydrophobic impregnation and is impregnated.
- the hydrophobic impregnating agent is applied to the region of the upper surface of the lower mold by a rotating brush.
- the hydrophobic impregnating agent is applied to the entire upper surface of the lower mold.
- the hydrophobic impregnating agent is N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl
- Spray application applied to the top of the lower mold.
- a uniform layer of impregnating agent can also be applied to the upper side of the lower mold.
- the impregnating agent forms a uniform film in the
- the impregnating agent with a layer thickness of 10-50 pm on the
- the impregnating agent is transferred from the area of the lower mold to which it has been applied to the fresh concrete applied to this area.
- the hydrophobic impregnating agent comprises at least one peeling oil and a hydrophobizing agent.
- the peeling oil has at least one oil or oil derivative and serves as a release agent between the lower mold and the fresh concrete and / or the roof stone blank made of fresh concrete.
- the peeling oil comprises vegetable oil, esterified oil, oleic acid and / or mineral oil.
- a mixture of esterified rapeseed oil and / or sunflower oil, in each case in particular in the form of the methyl ester, is used with oleic acid and mineral oil without volatile organic compounds.
- the hydrophobizing agent preferably comprises an alkoxy-silane and / or alkoxy-siloxane compound, which is particularly hydrophobic.
- the hydrophobic impregnating agent is applied to the entire upper surface of the lower mold.
- Forming unit performed with a shaped piece and a forming die, wherein the forming die presses fresh concrete into a mold cavity of the fitting.
- Corresponding methods for the formation of water barriers on roof stone blanks are described in the documents DE 10 2015 113 328 A1 and EP 18 55 856 B1.
- the water barrier can already by the shape of the lower mold and the
- the water barrier of the roof tile preferably forms the second support surface of the roof tile with overlapping roofing, so that at least this area of the water barrier has the hydrophobic impregnating agent.
- the impregnating agent is so on the
- Alternative impregnation methods for producing a roof tile according to the invention are the addition of a hydrophobic impregnating agent into the mixture of fresh concrete or the spraying of an impregnating agent from below onto the underside of the roofing stone blank, which has previously been removed from the lower molds.
- Impregnating agent are needed to achieve a corresponding hydrophobic surface effect at the bottom of the Dachstein. As a result, the production is such
- Contain substances that have a high respiratory tract in the form of spray Contain substances that have a high respiratory tract in the form of spray.
- Fig. 2 enlarged side view of the overlap region of two in First-eaves line
- Fig. 1 shows a schematic side view of a scale-like, overlapping roofing of a roof, wherein a ridge-side roof tile 1 and a second, roof-sided Jardin 2 are shown as examples.
- Both roof tiles 1, 2 each have a head-side end 3 and a foot-side end 4.
- the roof tiles 1, 2 also each have a first support surface 5 on the upper side 6 of the roof tile 1, 2 in the region of the head end 3 and a second support surface 7 on an underside 8 of the roof tile 1, 2 in the region of the foot end 4.
- the foot-side end 4 has an integrally formed curve 11 and a water barrier 12, the underside 13 of the water barrier 12 being the second Support surface 7 acts.
- the water barrier 12 extends in the transverse direction 21 of the roof tile 1, 2 over its entire width.
- the first support surface 5 is arranged on the top end 3 on the top side 6 of the eaves-side roof tile 2.
- At least the underside 8 of the roof tile 1, 2 has a hydrophobic impregnation 14 in the region of the second support surface 7.
- the impregnation 14 is shown only schematically.
- the hydrophobic impregnation 14 covers the pore walls of the roof tile 1, 2, which are not shown.
- This mixture is applied to a lower mold made of aluminum.
- the shape has in particular a size of 420mm * 330mm.
- the order quantity with the mixture described above is 1.5 g.
- a tile is extruded onto this mold and cured for at least 8 hours at 50 ° C. Thereafter, the Dachstein can be separated from the mold.
- the surface of the roof stone underside has clearly water-repellent properties.
- This mixture is applied to a lower mold made of aluminum.
- the shape has in particular a size of 420mm * 330mm.
- the order quantity with the mixture described above is 6g.
- a tile is extruded onto this mold and cured for at least 8 hours at 50 ° C. Thereafter, the Dachstein can be separated from the mold.
- the surface of the roof stone underside has clearly water-repellent properties.
- This mixture is applied to a lower mold made of aluminum.
- the shape has in particular a size of 420mm * 330mm.
- the order quantity with the mixture described above is 3 g.
- a tile is extruded onto this mold and cured for at least 8 hours at 50 ° C. Thereafter, the Dachstein can be separated from the mold.
- the surface of the roof stone underside has clearly water-repellent properties.
- This mixture is applied to a lower mold made of aluminum.
- the shape has in particular a size of 420mm * 330mm.
- the order quantity with the mixture described above is 3 g.
- a tile is extruded onto this mold and cured for at least 8 hours at 50 ° C. Thereafter, the Dachstein can be separated from the mold.
- the surface of the roof stone underside has clearly water-repellent properties.
- the invention is not limited to one of the above-described embodiments, but can be modified in many ways.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018106614.7A DE102018106614A1 (en) | 2018-03-21 | 2018-03-21 | Dachstein and method of making a Dachstein |
PCT/EP2019/055699 WO2019179784A1 (en) | 2018-03-21 | 2019-03-07 | Roof tile and method for producing a roof tile |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3768909A1 true EP3768909A1 (en) | 2021-01-27 |
Family
ID=65802040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19711264.2A Pending EP3768909A1 (en) | 2018-03-21 | 2019-03-07 | Roof tile and method for producing a roof tile |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3768909A1 (en) |
DE (1) | DE102018106614A1 (en) |
WO (1) | WO2019179784A1 (en) |
ZA (1) | ZA202006506B (en) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH362642A (en) * | 1957-09-25 | 1962-06-15 | Michoud Roger | Process for treating a terracotta object |
DE3522846A1 (en) | 1985-06-26 | 1987-01-02 | Braas & Co Gmbh | METHOD AND DEVICE FOR PRODUCING CONCRETE ROOFS |
DE3932573A1 (en) | 1989-09-29 | 1991-04-11 | Nelskamp Dachziegelwerke Gmbh | Durable coloured concrete roofing tiles - consist of pigmented portland cement mixes with extruded or rolled on covering of similar cement mix plus specified type of polymer |
DE19746053B4 (en) * | 1997-10-17 | 2006-11-16 | Erlus Aktiengesellschaft | Process for producing a self-cleaning property of surfaces, in particular roofing tiles, and ceramic bodies with a self-cleaning surface |
GB2382356B (en) | 2001-11-22 | 2005-08-31 | Forticrete Ltd | Improvements in or relating to interlocking roof tiles |
DE102005011201A1 (en) | 2005-03-09 | 2006-09-21 | Lafarge Roofing Technical Centers Gmbh | Apparatus and method for producing a water barrier in a not yet hardened roof tile |
FR2955858B1 (en) * | 2010-02-04 | 2012-10-26 | Lafarge Sa | CONCRETE ELEMENT WITH SUPERHYDROPHOBIC SURFACE |
DE102015102382A1 (en) * | 2015-02-19 | 2016-08-25 | Bundesrepublik Deutschland, Vertreten Durch Den Bundesminister Für Wirtschaft Und Energie, Dieser Vertreten Durch Den Präsidenten Der Bundesanstalt Für Materialforschung Und -Prüfung (Bam) | Process for permanent hydrophobing and / or superhydrophobing of concrete surfaces |
DE102015113328A1 (en) | 2015-08-12 | 2017-02-16 | Monier Roofing Gmbh | Method of producing a roof tile with a water barrier and a roof tile with a molded water barrier |
DE102016109201A1 (en) * | 2016-05-19 | 2017-11-23 | Monier Roofing Gmbh | Dachstein and method of making a Dachstein |
-
2018
- 2018-03-21 DE DE102018106614.7A patent/DE102018106614A1/en active Pending
-
2019
- 2019-03-07 WO PCT/EP2019/055699 patent/WO2019179784A1/en unknown
- 2019-03-07 EP EP19711264.2A patent/EP3768909A1/en active Pending
-
2020
- 2020-10-20 ZA ZA2020/06506A patent/ZA202006506B/en unknown
Also Published As
Publication number | Publication date |
---|---|
RU2020134284A (en) | 2022-04-22 |
WO2019179784A1 (en) | 2019-09-26 |
ZA202006506B (en) | 2023-01-25 |
DE102018106614A1 (en) | 2019-09-26 |
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