WO2011038956A1 - Mélange pour matériaux liés avec du ciment ayant des propriétés « easy-to-clean » (nettoyage facile) - Google Patents

Mélange pour matériaux liés avec du ciment ayant des propriétés « easy-to-clean » (nettoyage facile) Download PDF

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Publication number
WO2011038956A1
WO2011038956A1 PCT/EP2010/061214 EP2010061214W WO2011038956A1 WO 2011038956 A1 WO2011038956 A1 WO 2011038956A1 EP 2010061214 W EP2010061214 W EP 2010061214W WO 2011038956 A1 WO2011038956 A1 WO 2011038956A1
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Prior art keywords
weight
parts
hydraulically setting
silane
mixture according
Prior art date
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PCT/EP2010/061214
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German (de)
English (en)
Inventor
Manuel Friedel
Wolfgang Lortz
Spomenko Ljesic
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Evonik Degussa Gmbh
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Publication of WO2011038956A1 publication Critical patent/WO2011038956A1/fr

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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
    • 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
    • C04B28/04—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
    • 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
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
    • C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
    • C09K8/467—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
    • C09K8/473—Density reducing additives, e.g. for obtaining foamed cement compositions
    • 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
    • C04B2111/2038—Resistance against physical degradation
    • C04B2111/2069—Self cleaning materials, e.g. using lotus effect
    • 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
    • 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 present invention relates to a special hydraulically setting mixture, wherein a hardened or hardened material surface produced therefrom has dirt-repellent properties.
  • Hydraulically setting materials such as cementitious materials
  • pollution of the surfaces of such concrete paving stones by a variety of materials, such as traffic and industrial emissions, especially carbon blacks, pollen, grass stains, oils, especially engine oils, beverage and food residues, especially cola, coffee, red wine or ketchup, and by the growth of microorganisms, such as algae or fungi, from a aesthetic point of view is a major problem.
  • the equipment of hydraulically set materials in such applications with dirt-repellent properties hereinafter also "easy-to-clean" or ETC called) is therefore desirable.
  • dirt-repellent properties is meant the property of the surface to prevent the penetration of both aqueous and oily substances into the material and to facilitate the removal of these substances from the surface.
  • EP 0 838 467 teaches the use of a fluorine-containing silane or silane system
  • EP 1 445 242 discloses non-cement-based plasters or coatings for facades which have dirt-repellent properties.
  • the dirt-repellent properties are achieved by the microroughness is reduced so that dirt particles can not penetrate into the pore space and set.
  • the disadvantage here is that kaliwasserglasbasêt, non-cementitious plaster mixtures are modified as such.
  • mixture according to the invention such as cement and aggregates, premix in a suitable mixing unit.
  • the subject of the present invention is thus a hydraulically setting mixture which
  • At least one siliceous additive having an average particle size of 1 nm to 20 ⁇ m and an inner surface area (BET) of 20 to 800 m 2 / g,
  • a hydraulically setting mixture according to the invention can be advantageously used as further components at least
  • plasticizer preferably selected from the group of polycarboxylate ethers (PCEs), polymethyl methacrylates and lignosulfonates or naphthalene-formaldehyde sulfonates, and
  • At least one further auxiliary agent preferably selected from the group of dispersing aids and wetting auxiliaries, such as, for example, siliconates or alkylphosphonates, defoamers, such as
  • trialkyl phosphates for example, trialkyl phosphates, air entraining agents, such as saponified resin acids, retarders and accelerators, such as formates, and / or
  • mixtures according to the invention in particular cement-bound mixtures which
  • plasticizer preferably selected from the group of polycarboxylate ethers (PCEs), polymethyl methacrylates and lignosulfonates or naphthalene-formaldehyde sulfonates optionally 0.05-0.9, in particular 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7 or 0.8 parts by weight of at least one further auxiliary, preferably selected from the group of dispersing aids and wetting aids, such as, for example, siliconates or alkylphosphonates, defoamers, such as, for example, trialkyl phosphates, air-entraining agents, such as saponified resin acids, retarders and accelerators, such as, for example, formates, and / or water reducers
  • PCEs polycarboxylate ethers
  • defoamers such as, for example, trialkyl phosphates
  • air-entraining agents such as saponified resin acids, retarders and accelerators, such as, for example, formates, and
  • cements in a mixture according to the invention all conventional Portland cements and Portland composite cements and blast furnace cements can be used or contained.
  • the cement is preferably - but not exclusively - from the series of
  • a mixture according to the invention may advantageously contain additives which are preferably selected from the series of sands, gravels and chippings, preferably those
  • mixtures according to the invention are preferably based on at least one silane- or siloxane-based hydrophobing agent selected from the series of aqueous silane- and / or siloxane-based compositions, silane- and / or siloxane-based emulsions, where the silane and / or siloxane-based
  • Composition or emulsion preferably has an active ingredient content of silane and / or siloxane of from 2.5 to 90 wt .-%, based on the composition or emulsion.
  • Water repellents in the context of the present invention can be any active ingredient content of silane and / or siloxane of from 2.5 to 90 wt .-%, based on the composition or emulsion.
  • R 2 is a hydrogen atom or an alkyl radical having 1 to
  • hydrophobicizing agents according to the invention may be oligomeric siloxanes of the general formula II
  • groups R 1 and R 3 are independently of each other Ci-Cis-alkyl, which may contain one or more heteroatoms such as N, O, F, Cl, P or S
  • groups R 2 are identical or different and R 2 is a hydrogen atom or is an alkyl radical having 1 to 6 carbon atoms, preferably having 1 or 2 carbon atoms, and n + m the degree of oligomerization as with 2 to 50, preferably 2 to 30, determined.
  • Oligomerization degree of 2 to 50 preferably from 2 to 30, wherein the average molecular weight is preferably 300 to 10,000 g / mol.
  • the silanoligomers of the general formula II can be present as linear, cyclic and / or branched units.
  • the molecular weight can be determined, for example, by means of GPC according to methods familiar to the person skilled in the art.
  • silanoligomers are those having radicals: R 1 - CH 3 -, C 2 H 5 -, C 3 H 7 -, C 4 Hg-, iC 4 Hg-, C6H 13-, 1-C6H13, CsHi6-, i-CsHi6- and
  • R 2 H, methyl or ethyl
  • R 3 CH 3, C 2 H 5 -, C3H 7 -, C 4 Hg, iC 4 Hg, 13- C6H, 1-C6H 13, CsHi6-, ⁇ - ⁇ - ⁇ -, NH2-C3H6-,
  • hydrophobing agents of the general formulas I and II can be used or used according to the invention.
  • each of the hydrophobizing agents I and II independently account for between 0% and 100% of the total amount of hydrophobizing agent (proportion of total hydrophobing agent).
  • Preparation can be taken, for example, but not exclusively, from EP 0 838 467, EP 0 814 110, EP 0 960 921, EP 1 205 481, EP 1 099 703 and / or EP 1 306 381.
  • EP 0 838 467 EP 0 814 110
  • EP 0 960 921 EP 1 205 481, EP 1 099 703 and / or EP 1 306 381.
  • a mixture according to the invention can usually be found in a simple and
  • the said silane / siloxane-containing hydrophobizing agents can be used in the form of an aqueous preparation. This allows the
  • Such aqueous preparations may, in particular, be aqueous emulsions which have a content of hydrophobizing agent of the formula I and / or II of in total 2.5% by weight to 90% by weight, preferably 5% by weight to 80% by weight, particularly preferably from 5% by weight to 70% by weight, very particularly preferably from 10% by weight to 60% by weight (in each case based on the total mass of the aqueous emulsion).
  • water repellents used according to the invention may contain at least one emulsifier which advantageously comprises a series of alkyl sulfates with Cs-Cis-alkyl, alkyl and alkaryl ether sulfates with Cs-Cis-alkyl in the hydrophobic radical and with 1 to 40 ethylene oxide (EO) or propylene oxide (PO) units, alkyl sulfonates with Cs-Cis-alkyl, alkarylsulfonates with Cs-Cis-alkyl and half esters of sulfosuccinic acid with monohydric alcohols or alkylphenols having 5 to 15 carbon atoms, alkali metal and ammonium salts of carboxylic acids having 8 to 20 carbon atoms in the alkyl, aryl, alkaryl or aralkyl radical, alkyl and alkaryl phosphates having 8 to 20 carbon atoms in the organic
  • the content of emulsifier in such an emulsion is preferably 0.01 to 5 wt .-%, based on the total weight of the emulsion.
  • an aqueous composition of a hydrophobizing agent used according to the invention may advantageously also contain conventional auxiliaries,
  • Fungicides Fungicides, bactericides, algicides, microbiocides, fragrances,
  • silicatic additives are advantageously selected from the series of microsilica, fly ash, flame silicic acids, precipitated silicas, zeolites, crystalline in inventive hydraulically setting mixtures
  • Wollastonite or clay or from an aqueous dispersion of at least one pyrogenic silica or at least one precipitated silica or a mixture of pyrogenically prepared and precipitated silicas.
  • silicate additives i. which are used for the preparation of a hydraulically setting mixture according to the invention or are present in the mixture according to the invention can be oxides, hydroxides or oxide hydrates of the silicon. These may contain other elements, e.g. Lithium, sodium, potassium, magnesium, calcium, boron, aluminum, carbon, phosphorus, sulfur, halogens, titanium, chromium, iron, nickel, copper, zinc, zirconium, molybdenum, silver preferably in ionized form, optionally also in the form of Oxides, included.
  • Such siliceous fillers may be microsilica, fly ash, flame silicic acids, precipitated silicas, silica sols, kaolin, mica, kieselguhr, diatomaceous earth, talc, wollastonite or clay or even silicates inter alia in the form of glass beads, ground glass splinters (glass powder), glass fibers or glass fabrics.
  • Silica acids such as flame silicic acids, precipitated silicas, crystalline silicic acids or zeolites are preferably used. Particularly preferred flame silicas and / or precipitated silicas.
  • Siliceous fillers used according to the invention may be pulverulent solids, but they are preferably in the form of aqueous dispersions. Also, grinding and / or sifting of the powders may be carried out before or after.
  • the average particle size used according to the invention or present in a mixture according to the invention silicate additives advantageously 1 nm to 20 ⁇ including all intervening numbers, preferably 2 nm to 10 ⁇ , particularly preferably 3 nm to 5 ⁇ .
  • Average particle size can be determined, for example, by means of transmission electron microscopy (TEM).
  • TEM transmission electron microscopy
  • mixture of present silicate additives according to the invention are advantageously from 20 to 800 g / m 2 including all numbers lying between them, preferably from 25 to 600 g / m 2 , particularly preferably from 50 to 500 g / m 2 , very particularly preferably from 60 to 400 g / m 2 , in particular 70 and 300 g / m 2 .
  • the specific surface area (BET) can be determined, for example, on the basis of DIN 66131.
  • silicatic additives according to the invention in the form of aqueous
  • Dispersions are used or a mixture according to the invention contains an aqueous dispersion of silicate additives, these advantageously have a content of at least one of said silicate additives from 2 wt .-% to 80 wt .-%, preferably 2 wt .-% to 60 wt. -%, particularly preferably 5 wt .-% to 50 wt .-%, most preferably 10 wt .-% to 40 wt .-% (each based on the total mass of the aqueous dispersion).
  • aqueous dispersion preferably 2 to 80 wt .-%.
  • Aqueous dispersions of silicate additives used according to the invention can be stabilized by salts of elements of main groups I and II of the Periodic Table of the Elements (PSE) and by salts of compounds of main group V of PSE, in particular by oxides, hydroxides, nitrates, nitrites, sulfates , Sulfites, sulfides, halides, phosphates, hydrogen phosphates, dihydrogen phosphates, carbonates, bicarbonates of sodium, potassium and / or ammonium.
  • PSE Periodic Table of the Elements
  • precipitated silicas are used as additives in the present invention, they can advantageously be premixed in suitable mixing units.
  • suitable mixing units are, for example, Lödige type mixers.
  • Advantageously precipitated silicas are premixed at 100 to 1000, in particular at 150 to 500 revolutions using a ploughshare mixer for a period of 30 minutes.
  • the silicate additive used according to the invention or present in the mixture according to the invention can have a content of carbon in pure or chemically bound form of between 0.1 and 25% by weight, preferably between 0.1 and 10% by weight, more preferably between 0 and 0 , 1 and 5 wt .-% (based on the total mass of the siliceous filler) have.
  • the silicate additive used according to the invention or present in the mixture according to the invention can furthermore contain a content of physically and chemically bound alcohol between 0 and 25% by weight, preferably between 0 and 15% by weight, particularly preferably between 0 and 10% by weight. % (based on the total mass of the siliceous filler).
  • Silicate additive may be predominantly homogeneous or inhomogeneous.
  • Silane-modified silicate additives are obtainable by mixing at least one microbeaded or microgranular silicate additive according to the invention in a compressed gas with at least one silane from the series of organosilicon compounds of general formula I and / or II and / or an organosilicon compound, as described in DE 198 44 607 described, implemented.
  • suitable silane-modified silicate additives can be obtained, for example, by treating silicate additives with a silanizing reagent.
  • the treatment can be carried out, for example, by wetting (mixing, kneading, grinding, dipping, flooding) said silicate additives with the silanizing reagent and subsequent thermal aftertreatment, for example in a drying cabinet. But the treatment can also be by spraying the silicate additives with a silanizing reagent, optionally under the influence of a higher temperature and
  • a silicate, silane-modified additive used according to the invention may contain from 0.1 to 50% by weight, preferably from 0.1 to 25.0% by weight, particularly preferably from 0.1 to 10% by weight, of silane in a tethered or unbonded form contain.
  • a silane-modified silicate additive used in accordance with the invention may further contain from 50 to 99.9% by weight of microbeaded or microbaked, siliceous filler.
  • the silane-modified silicate additive may have a bead fraction greater than 1000 ⁇ of less than 30% by weight, preferably less than 20% by weight, more preferably less than 10% by weight, and / or a bead fraction greater than 500 ⁇ of less than 30 Wt .-%, preferably less than 20 wt .-%, more preferably less than 10 wt .-%, have.
  • the above-mentioned silane may be chemically and / or physically linked to the surface of the additives.
  • the silane used may in particular be an organosilicon compound or mixtures of organosilicon compounds of the general formula I and / or II.
  • silanes in the context of the present invention for the modification of siliceous additives it is also possible to use mixtures of silanes,
  • silicate additive used in accordance with the invention and / or the silane which can be used to modify the additive can be admixed with additives before the reaction.
  • silicate additive during the implementation of
  • Silane modification can be brought into contact with additional additives.
  • the modification reaction can take place at temperatures between 1 and 300 ° C,
  • a silane-modified silicate additive to be used according to the invention can additionally be subjected to a compaction or processing step.
  • silicate optionally silanized, additives are used.
  • hydrophobizing agents of the general formula I and / or II according to the invention and / or the silicatic additives according to the invention are used in the form of their aqueous preparations, then it is advantageous for the calculation of the total composition of the cement-bound mixture to use only the proportion of active substance in the respective aqueous composition as inventive Silane / siloxane-containing hydrophobizing agent, or inventive silicate Additive, taken into account.
  • inventive Silane / siloxane-containing hydrophobizing agent, or inventive silicate Additive taken into account.
  • the water content of these aqueous preparations in the calculation of the necessary addition amount of water
  • Condensers may be all common flow aids, in particular polycarboxylate ethers (PCEs) and / or polymethyl methacrylates and lignosulfonates or naphthalene-formaldehyde sulfonates.
  • PCEs polycarboxylate ethers
  • Condensers may be all common flow aids, in particular polycarboxylate ethers (PCEs) and / or polymethyl methacrylates and lignosulfonates or naphthalene-formaldehyde sulfonates.
  • Hydraulically setting mixtures according to the invention can be used as further
  • Adjuvants for example, dispersants and wetting aids, such as, for example, siliconates or alkyl phosphonates, defoamers, such as, for example, trialkyl phosphates, air entraining agents, such as saponified resin acids, retarders and
  • Accelerators such as formates, and / or water reducers.
  • hydraulically setting mixtures according to the invention can be used in the concrete industry, these being mixed in conventional compulsory mixers.
  • aqueous emulsions according to the invention of hydrophobizing agents and / or said aqueous dispersions of the well-defined silicatic additives are added together with the mixing water.
  • the content of additionally introduced water can advantageously be taken into account when setting the desired w / c value.
  • a hydraulically setting mixture of the invention obtained in this way can subsequently be subjected to shaping and curing known per se to the person skilled in the art, whose surfaces in the sense of the invention advantageously also have a lower tendency to become soiled ("easy-to-clean" property) during abrasion.
  • the present invention thus also relates to components, concrete products or molded articles obtainable using a hydraulically setting mixture according to the invention.
  • the mortar test specimens used were from a commercial source.
  • Water repellents and additives were each predispersed in the mixing water.
  • the resulting mixture was filled in PE cups, dried for 24 days at 25 ° C, then disconnected from the PE cup and cured for a further 28 days at 25 ° C.
  • the pollution properties were in
  • a mortar specimen was prepared as described above. However, no silane-based or siloxane-based water repellents, silicate additives or other auxiliaries were used.
  • a mortar test specimen was prepared as described above. In the mixing water, before addition, 2% by weight of an aqueous emulsion containing 50% by weight of a propylethoxyoligosiloxane having an average molar mass of about 700 g / mol, and 3 wt .-% of a finely divided precipitated silica which has a specific
  • a mortar test specimen was prepared as described above. In the mixing water before addition 2 wt .-% of an aqueous emulsion containing 50 wt .-% of an octyltriethoxysilane, and 5 wt .-% of an aqueous dispersion containing 20 wt .-% of a fumed silica and is stabilized with KOH, and which is characterized by a mean aggregate size of 0.12 ⁇ and a pH of 9.0 to 10.0, dispersed.
  • a mortar test specimen was prepared as described above. In the mixing water before addition 2 wt .-% of an aqueous emulsion containing 50 wt .-% of an octyltriethoxysilane, and 1 wt .-% of a hydrophilic, pyrogenic
  • a mortar test specimen was prepared as described above. In the mixing water 2 wt .-% of an aqueous emulsion containing 50 wt .-% of an octyltriethoxysilane, dispersed before addition.
  • a mortar test specimen was prepared as described above. In the mixing water before addition 5 wt .-% of an aqueous dispersion containing 20 wt .-% of a fumed silica and is stabilized with KOH and which is characterized by a mean aggregate size of 0.12 ⁇ and a pH of 9.0 to 10.0, dispersed.
  • a mortar test specimen was prepared as described above. In the mixing water 3 wt .-% of a finely divided precipitated silica having a specific surface area of 175 m 2 / g and an average particle size of 5 ⁇ , were dispersed before addition.
  • Polluting agents (coffee, cola, red wine) each achieve a 4 or 5 and at the same time olive oil a marked improvement over an untreated one
  • Table 1 below shows the results of the soiling test. Pollution pollution game coffee (sweetened) with cola with red wine with olive oil

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

La présente invention concerne un mélange assemblé avec de l'eau présentant 6 à 25 parties en poids de ciment, 50 à 90 parties en poids d'au moins un adjuvant, 0,01 à 3 parties en poids d'au moins un agent hydrophobant à base de silanes ou de siloxanes, 0,01 à 3 parties en poids d'au moins un additif contenant des silicates présentant une taille de particule moyenne de 1 nm à 20 μm et une surface intérieure (BET) de 20 à 800 m2/g, et facultativement en tant qu'autres composants, au moins 1 à 20 parties en poids d'eau, 0,05 à 0,5 partie en poids de fluidifiant ainsi que 0,01 à 1 partie en poids d'au moins un autre agent auxiliaire. L'invention concerne également des matériaux de construction, des éléments de construction, des produits en béton ou des moules fabriqués à partir de ces composants. L'invention concerne en outre l'utilisation d'un mélange selon l'invention assemblé avec de l'eau permettant de fabriquer des matériaux de construction, des éléments de construction, des produits en béton ou des moules, par exemple sous la forme de béton de parement, la surface des corps correspondants ne présentant qu'une faible tendance aux salissures (propriétés « easy-to-clean »), également en cas d'abrasion.
PCT/EP2010/061214 2009-09-29 2010-08-02 Mélange pour matériaux liés avec du ciment ayant des propriétés « easy-to-clean » (nettoyage facile) WO2011038956A1 (fr)

Applications Claiming Priority (2)

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DE102009045112.9 2009-09-29
DE102009045112A DE102009045112A1 (de) 2009-09-29 2009-09-29 Mischung für zementgebundene Werkstoffe mit Easy-to-Clean-Eigenschaften

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WO2011038956A1 true WO2011038956A1 (fr) 2011-04-07

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8679247B2 (en) 2010-04-01 2014-03-25 Evonik Degussa Gmbh Hydraulic setting mixture for materials having “easy-to-clean” properties
US9040608B2 (en) 2010-04-01 2015-05-26 Evonik Degussa Gmbh Curable mixture
US9382383B2 (en) 2011-11-15 2016-07-05 Evonik Degussa Gmbh Composition comprising block cocondensates of propylfunctional alkaline siliconates and silicates, and method for the production thereof
US9528036B2 (en) 2014-04-03 2016-12-27 Evonik Degussa Gmbh Low-voc dialkyl-functional alkoxysiloxanes, processes and use thereof as hydrophobizing impregnating agents for mineral building materials
CN109761535A (zh) * 2019-03-26 2019-05-17 李好荣 一种混凝土高效防水抗压合金粉及其制备方法

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CN104230228B (zh) * 2014-08-25 2016-04-27 安徽升翔建设工程有限公司 一种耐高温抗菌混凝土及其制备方法
CN108129086B (zh) * 2017-12-29 2020-07-10 成都精准混凝土有限公司 一种清水混凝土制备工艺及专用外加剂制备
DE102018100354A1 (de) * 2018-01-09 2019-07-11 Braun Steine Gmbh Betonstein und Verfahren zur Herstellung eines Betonsteins
DE102019124726A1 (de) * 2019-09-13 2021-03-18 METTEN Consulting GmbH Betonelement und Verfahren zu seiner Herstellung

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