WO2005037725A2 - Tuile en beton comprenant au moins deux couches - Google Patents

Tuile en beton comprenant au moins deux couches Download PDF

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Publication number
WO2005037725A2
WO2005037725A2 PCT/EP2004/011144 EP2004011144W WO2005037725A2 WO 2005037725 A2 WO2005037725 A2 WO 2005037725A2 EP 2004011144 W EP2004011144 W EP 2004011144W WO 2005037725 A2 WO2005037725 A2 WO 2005037725A2
Authority
WO
WIPO (PCT)
Prior art keywords
dachstein
coating
sand
parts
binder
Prior art date
Application number
PCT/EP2004/011144
Other languages
German (de)
English (en)
Other versions
WO2005037725A3 (fr
Inventor
Andreas Drechsler
Michael Heise
Heinz-Werner Vissmann
Stephan Westphal
Henner Patzwall
Original Assignee
Lafarge Roofing Technical Centers Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lafarge Roofing Technical Centers Gmbh filed Critical Lafarge Roofing Technical Centers Gmbh
Publication of WO2005037725A2 publication Critical patent/WO2005037725A2/fr
Publication of WO2005037725A3 publication Critical patent/WO2005037725A3/fr

Links

Classifications

    • 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
    • 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
    • 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
    • C04B28/08—Slag 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
    • C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
    • C04B41/61—Coating or impregnation
    • C04B41/65—Coating or impregnation with inorganic materials
    • 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
    • E04D1/28—Roofing elements comprising two or more layers, e.g. for insulation
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0027—Standardised cement types
    • C04B2103/004—Standardised cement types according to DIN
    • 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
    • C04B2111/00034—Physico-chemical characteristics of the mixtures
    • C04B2111/00129—Extrudable mixtures
    • 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
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the invention relates to a roof tile according to the preamble of claim 1.
  • concrete roof tiles are often used, which consist of a hydraulic binder, in particular cement, and a mineral aggregate.
  • These concrete roof tiles are usually manufactured using an extrusion or extrusion process, whereby beaver tails, rabbet roof tiles and pans are produced.
  • a continuous layer of concrete is applied to the lower molds and then compacted by means of a shaping roller and smoother and, if necessary, profiled.
  • the compacted fresh concrete layer is then cut in a cutting station to form Dachstein shaped pieces of the same length with a head-side and a foot-side edge, the foot-side edge being trimmed.
  • the concrete roof tiles manufactured according to this method have a cut surface on both the head-side edge and the foot-side edge, which is provided with pores and other irregularities.
  • the roughness and porosity of these cut surfaces are significantly greater than that of the compacted top, so that the end faces of these concrete roof tiles are of a poorer quality than the compacted top.
  • these cut surfaces tend to efflorescence.
  • a ner driving method for the production of concrete roofing tiles is already known, with which the foot-side edge of these roofing tiles obtains better weather resistance and strength and also avoids efflorescence at this point (DE 35 22 846 C3).
  • the edge section on the foot side is pre-compacted, and when dressing, further material compaction is carried out on the foot-side edge of the Dachstein molding within an edge zone that is at least 2 to 8 mm deep and adjoins the end face.
  • this material compression creates a rounding or beveling that starts from the lower cutting edge adjacent to the lower mold and extends up to the upper side of the molding.
  • the roof tiles produced according to this extrusion process have a relatively rough surface on their top exposed to weathering. This favors the settlement of algae, lichen and moss.
  • the concrete roof tile consists of a base layer in the form of a mixture of hydraulic binders, such as Portland cement, sand and water, as well as a coating of up to several millimeters thick based on hydraulic binders, the coating being applicable in the plastic state.
  • the concrete roof tile has the extruded and / or rolled coating as well as any additional layers on all surface areas - except on the underside facing away from the weathering side.
  • the coating as such contains: cement, sand with a sieve line of up to 2 mm, cement-compatible, polymeric compounds from the polymerization of unsaturated, monomeric compounds, fillers and water in a ratio of 1: 1.2 to 3.5: 0.5 to 0 , 05: 0.15 to 0.03: 0.60 to 0.22 and dyes with color additives in the usual amount.
  • a roof tile which contains at least two layers, of which one layer is a base body and the other layer is a coating on this base body (German Utility Model 89 11 160.5).
  • the coating of this roof tile contains at least sand and a binder, the diameter of the largest grain of the sand being not less than a third of the thickness of the coating.
  • the invention has for its object to provide a coating for roof tiles and the like, which has improved rheological properties.
  • the invention thus relates to a roof tile that consists of two layers or layers.
  • the lower layer is a base body or concrete roof tile blank
  • the upper layer is a coating that contains at least sand and a binder.
  • the sand in the coating has grains of various sizes. The diameter of the largest grains is at most equal to the thickness of the coating, while the smallest grains have a diameter that is at least a third of the thickness of the coating.
  • the advantage achieved by the invention is, in particular, that the coating can be applied to a concrete roof tile blank with almost no force and is also dimensionally stable.
  • the properties, the so-called theological properties, regarding the phenomena which occur during deformation or when flowing under the influence of external forces, are considerably improved.
  • the second layer is applied to a base body that is not yet mechanically very stable, a low extrusion resistance is important.
  • the thickness of the coating can be reduced to up to 1 mm, which leads to a considerable saving in the coating material and a corresponding reduction in the material costs.
  • the coating composition can be applied in a very small layer thickness, it nevertheless ensures a complete and high-quality sealing, in particular of the surface of a roof tile. In the case of profiled roof tiles, the freshly applied coating compound does not flow down from the arched areas of the center brim and the top rebate into the water courses of the roof tile.
  • Fig. 3 shows a schematic diagram of the method for producing roof tiles and for applying a coating to the surface of these roof tiles.
  • the extrusion resistance as a function of the ratio of the desired coating thickness S ext to the maximum diameter D max sand of a grain of sand in a mixture of sand grains , once under conventional conditions and once according to the invention.
  • the upper curve I represents the conventional conditions, while the lower curve II represents the conditions according to the invention.
  • Conventional means that only sand and water are mixed together, while in the invention sand, water and cement are mixed together. In both cases, the sand mixture used contains sand grains in a uniform distribution from a predetermined minimum size to a predetermined maximum size.
  • the thickness S ext of the coating must be kept within very narrow limits during extrusion in order to obtain curve II. If the layer thickness reaches three times the largest grain diameter, the fine mortar begins to flow. The result is an inadequate definition of the sealing structures and impairments of the aesthetic appearance of the roof tile. It is therefore not possible to choose the ratio S ext : D maxSand to "7", although the extrusion resistance is still lower there.
  • the layer thickness falls below 1.5 times the maximum grain diameter, there is an increasing separation of cement paste - a non-solid mixture of cement and water - and sand, and the surface quality deteriorates drastically. If the sieve line of the cements and fillers overlap with the sieve line of the sand, the tendency to form bubbles increases significantly. If one tries to compensate for the formation of bubbles by reducing the water in the mixture, the extrusion resistance increases sharply.
  • the sieve line here means the grain size distribution of a bulk material.
  • the extrusion resistance is plotted once again over the ratio of the size of the extrusion gap and the maximum diameter of the sand. It can be seen here that the curve has a similar course to the curve in FIG. 1. This was to be expected because the extrusion gap determines the coating thickness. The effect described above also occurred in experiments in which the concrete roof tile blanks known from DE 35 22 846 C3 were coated in the area of the round cut. For this purpose, a second molding station for extruding the coating material and a second cutting station were installed, in which the extruded coating material strand was cut by a second circular cutting knife. The coating mass strand was cut in the area of the gap filled with coating mass between two blanks adjacent in the lower mold strand. This is shown schematically in more detail in FIG.
  • A denotes a position in which extrudable concrete is supplied for the production of the basic body of a roof tile.
  • This concrete contains the following components, for example: a) 100 parts of river sand with a grain size of 0 - 4 mm b) 25 parts of Portland cement c) 1 part of iron oxide pigment d) 10 parts of water, the Portland cement belonging to the class CEM 142.5 or CEM II AS.
  • Position B denotes a first tool box 1, on which the base body is extruded with underlayer tools.
  • a first cutting station 3 is provided, where the base body is cut with a profiled straight cut knife 4 and with an underlayer round cut knife 5.
  • a gap 6 is opened for the cutting waste.
  • Position F shows the finished base body 7 of a roof tile.
  • a molding station 8 is then provided at position H, with which a strand of top layer material is extruded on the base body by means of top layer tools.
  • This top layer material consists, for example, of a) 100 parts of quartz sand with grains of sand with a diameter between 0.1 and 0.6 mm b) 70 parts of Portland cement c) 14 parts of fly ash with a grain size of less than 80 mm or 14 parts of limestone powder of the same grain size d) 3 parts Iron oxide pigment e) 1 part of concrete liquefier of the substance class polycarboxylate ether f) 35 parts of water.
  • Portland cement belongs to the class CEM 142.5 or CEM II AS. At position I there is a strand on an upper layer on the base body, the gap 11 between two base bodies 9, 10 being closed.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

L'invention concerne une tuile en béton comprenant deux couches. La couche inférieure est un corps de base ou une tuile en béton crue, tandis que la couche supérieure est un revêtement renfermant au moins du sable et un liant. Le sable du revêtement présente des grains de différentes grosseurs. Le diamètre des grains les plus gros est, au maximum, égal à l'épaisseur du revêtement, alors que les grains les plus petits ont un diamètre s'élevant, au minimum, au tiers de l'épaisseur du revêtement.
PCT/EP2004/011144 2003-10-14 2004-10-06 Tuile en beton comprenant au moins deux couches WO2005037725A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10347578.8 2003-10-14
DE2003147578 DE10347578A1 (de) 2003-10-14 2003-10-14 Dachstein, der wenigstens zwei Lagen enthält

Publications (2)

Publication Number Publication Date
WO2005037725A2 true WO2005037725A2 (fr) 2005-04-28
WO2005037725A3 WO2005037725A3 (fr) 2005-06-09

Family

ID=34441918

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/011144 WO2005037725A2 (fr) 2003-10-14 2004-10-06 Tuile en beton comprenant au moins deux couches

Country Status (2)

Country Link
DE (1) DE10347578A1 (fr)
WO (1) WO2005037725A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1826332A1 (fr) * 2006-02-23 2007-08-29 Lafarge Roofing GmbH Tuile à durabilité de surface améliorée et procédés pour sa fabrication
EP2747995A4 (fr) * 2011-07-27 2016-03-16 Abbey And Pride Ip Pty Ltd Produit stratifié produit par disposition d'une couche sur une couche de base partiellement durcie semi-prise

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009021123B4 (de) * 2009-05-13 2015-01-15 Monier Technical Centre Gmbh Verfahren zum Herstellen eines Betonkörpers sowie Anlage hierfür

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5017320A (en) 1984-11-20 1991-05-21 Uralita, S.A. Process for the manufacuture of stratified pieces such as roof tiles and wall tiles
DE3932573C2 (fr) 1989-09-29 1992-10-15 Dachziegelwerke Nelskamp Gmbh, 4235 Schermbeck, De
DE3522846C2 (fr) 1985-06-26 1993-05-06 Braas & Co Gmbh, 6370 Oberursel, De

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8911160U1 (de) * 1989-09-19 1989-11-16 Braas & Co GmbH, 6370 Oberursel Mehrschichtiger Betondachstein
AU3503799A (en) * 1998-07-08 2000-02-03 Rohm And Haas Company Compositions useful for suppressing efflorescence on mineral substrates

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5017320A (en) 1984-11-20 1991-05-21 Uralita, S.A. Process for the manufacuture of stratified pieces such as roof tiles and wall tiles
DE3522846C2 (fr) 1985-06-26 1993-05-06 Braas & Co Gmbh, 6370 Oberursel, De
DE3932573C2 (fr) 1989-09-29 1992-10-15 Dachziegelwerke Nelskamp Gmbh, 4235 Schermbeck, De

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1826332A1 (fr) * 2006-02-23 2007-08-29 Lafarge Roofing GmbH Tuile à durabilité de surface améliorée et procédés pour sa fabrication
WO2007096773A2 (fr) * 2006-02-23 2007-08-30 Monier Technical Centre Gmbh , Nouvelle tuile pour toiture presentant une durabilite de surface amelioree et son procede de fabrication
WO2007096773A3 (fr) * 2006-02-23 2007-11-01 Lafarge Roofing Gmbh Nouvelle tuile pour toiture presentant une durabilite de surface amelioree et son procede de fabrication
EP2747995A4 (fr) * 2011-07-27 2016-03-16 Abbey And Pride Ip Pty Ltd Produit stratifié produit par disposition d'une couche sur une couche de base partiellement durcie semi-prise

Also Published As

Publication number Publication date
DE10347578A1 (de) 2005-05-19
WO2005037725A3 (fr) 2005-06-09

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