EP2421806A1 - Système de liant à faible retrait - Google Patents

Système de liant à faible retrait

Info

Publication number
EP2421806A1
EP2421806A1 EP10711401A EP10711401A EP2421806A1 EP 2421806 A1 EP2421806 A1 EP 2421806A1 EP 10711401 A EP10711401 A EP 10711401A EP 10711401 A EP10711401 A EP 10711401A EP 2421806 A1 EP2421806 A1 EP 2421806A1
Authority
EP
European Patent Office
Prior art keywords
mixture
alkali
binder
binders
shrinkage
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.)
Withdrawn
Application number
EP10711401A
Other languages
German (de)
English (en)
Inventor
Uwe Gehrig
Florian Ellenrieder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Construction Research and Technology GmbH
Original Assignee
Construction Research and Technology 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 Construction Research and Technology GmbH filed Critical Construction Research and Technology GmbH
Priority to EP10711401A priority Critical patent/EP2421806A1/fr
Publication of EP2421806A1 publication Critical patent/EP2421806A1/fr
Withdrawn legal-status Critical Current

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
    • 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
    • C04B28/006—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 mineral polymers, e.g. geopolymers of the Davidovits type
    • 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
    • C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
    • C04B2111/00672—Pointing or jointing materials
    • 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
    • C04B2111/10—Compositions or ingredients thereof characterised by the absence or the very low content of a specific material
    • C04B2111/1037—Cement free compositions, e.g. hydraulically hardening mixtures based on waste materials, not containing cement as such
    • 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
    • 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
    • C04B2111/34—Non-shrinking or non-cracking 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • 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 mixtures comprising alkali-activatable aluminosilicate binders, preferably solid binder mixtures, particularly preferably building material mixtures which contain vegetable oils and / or fats for reducing shrinkage. Furthermore, the invention relates to the use of vegetable oils and / or fats as Schwundreduzierer in alkali-activated aluminosilicate binders. Likewise subject of the invention are joint mortar, leveling compounds or coatings containing the mixtures according to the invention.
  • Alkali-activatable aluminosilicate binders are inorganic binder systems which are based on reactive water-insoluble oxides based on, inter alia, silicon dioxide in combination with aluminum oxide. They harden in aqueous alkaline medium. Such binder systems are also generally known by the term geopolymers. Geopolymers are described, for example, in the documents EP 0 026 687, EP 0 153 097 B1 and WO 82/00816.
  • the alkaline medium for activating the binder usually consists of aqueous solutions of alkali carbonates, sulfates, fluorides and in particular alkali hydroxide and / or soluble water glass.
  • the hardened binders have a high mechanical and chemical resistance. Compared to cement, these can be cheaper, more durable and have a lower carbon footprint.
  • EP 1 236 702 A1 describes, for example, a building material mixture containing water glass for the production of chemical-resistant mortars based on a latently hydraulic binder, water glass and metal salt as a control agent.
  • Granulated blastfurnace slag can also be used as a latent hydraulic component.
  • metal salt alkali salts are called and used.
  • Alkali-activatable aluminosilicate binders have the advantage that many products otherwise obtained as waste in energy or steel production (binders such as granulated blastfurnace, fly ash, slag, etc.) are sent for useful recycling can. They are characterized by a favorable energy balance (CO2 emission balance).
  • a major disadvantage of the known building material mixtures based on alkali-activatable aluminosilicate binders is the so-called shrinkage.
  • the onset of condensation undesirably leads to a volume contraction of the hardening binder.
  • This effect is even more pronounced compared to the shrinkage of cementitious binders in which a hydration reaction and no condensation reaction take place.
  • Average values of the shrinkage after 28 days under standard conditions according to DIN 12808-4 are, for example, for aluminosilicate binders at relative humidities up to 50% in the range up to 10 mm / m compared to 0 to 2 mm / m for cement.
  • the activator also usually contributing a large amount to the shrinkage behavior.
  • autogenous shrinkage chemical fading
  • Binders and activator compositions which would actually have good end properties, for example good compressive strength, scratch resistance and / or freeze / thaw resistance, are difficult or impossible to put into practice in some materials due to the excessive shrinkage. It should also be borne in mind that optimizing binders and activators for shrinkage also changes other final product properties. In order to obtain the desired product properties (low shrinkage and end product properties mentioned above), it is therefore necessary to optimize a complex system of interdependent parameters.
  • drying shrinkage Alkali-Activated Cements and Concretes, Caijun Shi, Pavel V. Krivenko, DeIIa Roy, (2006), 133-134, especially Chapter 5.5.2 Drying shrinkage.
  • This can be influenced by changing the ambient conditions (curing conditions such as temperature and humidity). At 100% humidity this shrinkage fraction is vanishingly small and very large at very low humidities.
  • the shrinkage in particular should depend as little as possible on the conditions of curing (curing conditions). In practice, strict adherence to the ideal curing conditions would in most cases not be possible and this would ultimately lead to large quality fluctuations. Therefore, an effective method for shrinkage reduction as far as possible independent of boundary conditions such as temperature and humidity should lead to good success in shrinkage reduction.
  • alkali-activatable aluminosilicate binders preferably solid binders, particularly preferably latently hydraulic binders (such as granulated blastfurnace slag), and / or pozzolans (for example natural pozzolans from ashes and rocks of volcanic origin and / or artificial Pozzolans such as fly ashes, silica fume (microsilica), burnt ground clay and / or oil shale ash), particularly preferably granulated blastfurnace, fly ash, microsilica, slag, activated clay and / or metakaolin mixtures and vegetable oils and / or fats, preferably oils, more preferably vegetable oils ,
  • This object is likewise achieved by the use of the mixtures according to the invention for shrinkage reduction and / or hydrophobization in alkali-activatable aluminosilicate binders.
  • a hydrophobization of the building materials causes in particular that the penetration of water can be prevented by the water-repellent effect and thus a further improvement of the resistance to environmental influences is achieved.
  • the object is also achieved in joint mortars, leveling compounds or coatings containing the mixtures according to the invention.
  • the mixtures according to the invention offer the advantage that low-shrinkage and high-quality mortars and concretes, in particular joint mortar, leveling compounds and coatings for the construction industry, can be realized cost-effectively.
  • oils and / or fats have shrinkage-reducing properties.
  • binders in the mixtures according to the invention for example, cottage sand, kaolin, metakaolin, slag, fly ash, microsilica, activated clay, silicon oxides, Traß, Puzzolanerde, kieselguhr, diatomaceous earth, Gaize, aluminum oxides and / or mixed aluminum / silicon oxides can be used.
  • These substances are also known by the generic terms latent hydraulic binders and pozzolans. In this case, one or more of said binders can be used.
  • Blastfurnace flour is the most preferred.
  • the composition of mineral binders is given as the particular oxide. However, this does not mean that the respective elements must also be in the form of the oxides or must be present.
  • oxide is only a standardized form of representation of the analytical results, as is common in this field.
  • the oxide composition of the preferably pulverulent, alkali-activatable binders and binder mixtures varies in relatively wide ranges, depending on the nature of the binder.
  • Alumosilikatbindesch have, in contrast to cements, mostly amorphous and calcium poor phases. Due to the high crystalline content of calcium silicate, calcium aluminate and calcium silicate aluminates, the cementic clinker phases hydrate when added with water to form calcium silicate hydrates, calcium aluminate hydrates and calcium silicate aluminate hydrates. However, these are only moderately stable to acids. Due to the high amorphous content or due to the lower content of calcium in alkali-activatable aluminosilicate binders (Portland cement: usually greater than 50 wt .-% CaO) form corresponding phases, which differ significantly from the cationic phases. Consequently, the content of Ca (usually expressed as CaO) in the aluminosilicate binder should be in the range given in the previous section to ensure good acid resistance.
  • oils and / or greases are used as a shrinkage reducer. These hydrophobic natural products are environmentally friendly, biodegradable and readily available at a great price.
  • vegetable oils preferably selected from the group of sunflower oil, soybean oil, thistle oil, olive oil, rapeseed oil, palm oil, peanut oil, rapeseed oil, cottonseed oil and / or linseed oil.
  • sunflower oil Particularly preferred is sunflower oil.
  • vegetable oils which are liquid at temperatures greater than 0 0 C, in order to ensure a sufficient efficacy at low temperatures. Oils, especially vegetable oils are preferred over fats, which are mostly of animal origin (for example beef tallow).
  • the vegetable oils and / or fats are preferably present in the mixtures in an amount of 0.01 to 15% by weight, preferably 0.02 to 10% by weight and more preferably 0.05 to 8% by weight.
  • the mixture contains as binder, granulated blastfurnace, fly ash and / or microsilica.
  • Advantage here is the better acid resistance of the binder (mixtures), mainly due to their preferred high content of aluminate and silicate.
  • the said binders are amorphous to a high degree and have relatively high and reactive surfaces. This accelerates the setting behavior.
  • the proportion of aluminate (as Al 2 O 3) and silicate (as SiO 2) should preferably total more than 50% by weight, more preferably more than 60% by weight, based on the total mass of the binder (mixture).
  • Granulated slag flour as particularly preferred alkali-activatable aluminosilicate binder may preferably be used in an amount between 5 and 90% by weight, preferably between 5 and 70% by weight, in each case based on the total weight of the mixture.
  • the granulated blastfurnace meal can be used alone, preferably in the abovementioned amount, or preferably together with pozzolans, particularly preferably with microsilica and / or fly ash.
  • the binder used is metakaolin.
  • the metakaolin may preferably be present in a proportion by weight of from 1 to 60% by weight, particularly preferably from 5 to 60% by weight, in each case based on the total weight of the mixture.
  • Metakaolin can be used as a binder alone or in combination with one or more alkali-activatable aluminosilicate binders, preferably selected from the group of granulated blastfurnace, fly ash and / or microsilica. Metakaolin is thermally treated kaolin and is particularly reactive due to its high amorphous content. It also binds quickly, especially at high grinding.
  • the binders used are characterized in that they have a specific surface area (Blaine value) greater than 2000 cm 2 / g, more preferably from 4000 to 4500 cm 2 / g.
  • a high Blaine value will generally lead to high strengths and high setting activity.
  • the mixture contains vegetable oils.
  • Embodiments of the invention in which cement is contained in the mixtures are also particularly advantageous, preferably in an amount of 0 to 50% by weight, preferably 0 to 25% by weight, particularly preferably 0 to 15% by weight and most preferably 0 to Contains 10 wt .-% cement.
  • Alumina cement with its relatively high aluminate content is preferred over Portland cement (OPC).
  • the phases calcium silicate hydrate (CSH) and calcium silicate aluminate (CSA) in cement have the property of being relatively stable to alkalis. By suitable selection of the binder can thus control the properties of the hardened building materials.
  • mixtures according to the invention which contain no cement.
  • these are suitable for the production of particularly acid-resistant building material mixtures.
  • an activator is contained, particularly preferably it is powdered.
  • the activator can also be used in the form of a solution.
  • the activator solution is usually mixed with an alkali-activatable binder or a binder mixture, whereupon the curing begins.
  • the mixtures contain as activator at least one alkali compound, e.g. Alkali silicates, alkali metal sulphates, carbonates of (alkaline) alkalis, such as, for example, magnesium carbonate, calcium carbonate, potassium carbonate, sodium carbonate, lithium carbonate, cement, alkali salts of organic and inorganic acids, particular preference is given to sodium, potassium and lithium hydroxide and / or calcium hydroxide, magnesium hydroxide.
  • alkali compound e.g. Alkali silicates, alkali metal sulphates, carbonates of (alkaline) alkalis, such as, for example, magnesium carbonate, calcium carbonate, potassium carbonate, sodium carbonate, lithium carbonate, cement, alkali salts of organic and inorganic acids, particular preference is given to sodium, potassium and lithium hydroxide and / or calcium hydroxide, magnesium hydroxide.
  • any compound which is alkaline in aqueous systems is useful.
  • alkali hydroxides are preferred because of their high alkalinity.
  • water glass preferably liquid water glass, in particular alkaline potassium or sodium water glass. It may be sodium, K or lithium water glass, with potassium water glass is particularly preferred.
  • the modulus (mol ratio SiC "2 to alkali oxide) of the water glass is preferably less than 4, preferably less than 2. In the case of water glass powder, this is Modulus smaller than 5, preferably between 1 and 4, more preferably between 1 and 3.
  • the mixtures contain at least one alkali aluminate, carbonate and / or sulfate as activators.
  • the activator can be used in aqueous solution.
  • concentration of the activator in the solution may be based on common practice.
  • the alkaline activation solution is preferably sodium, potassium, lithium hydroxide solutions and / or sodium, potassium lithium silicate solutions having a concentration of 0.1 to 60% by weight solids, preferably 1 to 55% by weight solids.
  • the amount used in the binder system is preferably 5 to 80 wt .-%, particularly preferably 10 to 70 wt .-%, particularly preferably 20 to 60 wt .-%.
  • mixtures which contain granulated blast-furnace slag between 5 and 90% by weight, preferably between 5 and 70% by weight, more preferably between 10 and 60% by weight, of microsilica and / or fly ash between 0 and 70% by weight. -%, preferably between 5 and 70, particularly preferably between 5 and 50 wt .-%.
  • the mixture may preferably contain aqueous activator solutions or, more preferably, pulverulent activators, between 0.1 and 90% by weight, preferably between 1 and 80% by weight, particularly preferably between 2 and 70% by weight. The weights are in each case based on the total weight of the mixture.
  • oils and / or fats according to the invention can preferably be added to the alkali-activatable, preferably pulverulent aluminosilicate binders. These are preferably coated onto the binder (s) and / or fillers.
  • pulverulent activator according to one of the preferred embodiments of the invention to the binder or to coat the binder and / or the fillers, if appropriate.
  • 2-component systems (2-component systems) are characterized in that the addition of an activator, preferably an aqueous activator solution, to the binder takes place.
  • an activator preferably an aqueous activator solution
  • the most alkaline activator systems according to the preferred embodiments of the invention are suitable as activators.
  • the oils and / or fats according to the invention which are suitable as shrinkage reducers in the aqueous activator solution.
  • suitable surfactants such as sodium dodecyl sulfate to produce stable emulsions to prevent phase separation of the oils and / or fats in the aqueous environment.
  • the following components are present in the mixture: between 0.01 and 15% by weight, preferably 0.02 to 10% by weight and more preferably 0.05 to 8% by weight of vegetable Oil, preferably selected from the group of sunflower oil, soybean oil, olive oil, rapeseed oil, palm oil, peanut oil, rapeseed oil, cottonseed oil and / or linseed oil, particularly preferably sunflower oil, particularly preferably vegetable oils which are liquid at temperatures greater than 0 0 C, between 1 and 90% by weight alkali-aluminosilicate binder, preferably 5 to 80% by weight, particularly preferably 10 to 70% by weight, preferably solid binders, particularly preferably latently hydraulic binders (such as granulated blastfurnace slag), and / or pozzolans (in particular for example, natural pozzolans of ashes and rocks of volcanic origin and / or artificial pozzolans such as fly ashes, silica fume (microsilica), burnt ground clay and / or oil
  • vegetable Oil preferably selected from the
  • between 0 and 80 wt .-%, more preferably between 30 and 70 wt .-% of fillers and optionally between 0 and 15 wt .-% additives, preferably of the abovementioned components differing additives may be present in the mixtures.
  • the weights are in each case based on the total weight of the mixture.
  • the binder system according to the invention is preferably used for the production of mortars and concretes.
  • the binder system described above is usually mixed with other components such as fillers, latent hydraulic substances and other additives.
  • the addition of the powdered activator is preferably carried out before the components mentioned are mixed with water, so that a so-called dry mortar is produced.
  • the activation component is in powder form, preferably as a mixture with the binders and / or sand.
  • an aqueous, preferably alkaline, activating solution may be added to the other powdered components. In this case one speaks then of a two-component binder.
  • Suitable fillers are generally known gravels, sands and / or flours, for example based on quartz, limestone, barite or clays.
  • Lightweight Fillers such as perlite, kieselguhr (diatomaceous earth), expanded mica (vermiculite) and foam sand can be used.
  • the proportion of fillers in mortar or concrete can usually be between 0 and 80% by weight, based on the total weight of the mortar or concrete.
  • Suitable additives are generally known flow agents, defoamers, water retention agents, pigments, fibers, dispersion powders, wetting agents, retarders, accelerators, complexing agents, aqueous dispersions and rheology modifiers.
  • the invention also relates to the use of vegetable fats and / or oils, preferably selected from the group of sunflower oil, soybean oil, olive oil, rapeseed oil, palm oil, peanut oil, rapeseed oil, cottonseed oil and / or linseed oil, particularly preferably sunflower oil, particularly preferably vegetable oils at temperatures C are greater than 0 0 liquid, to shrinkage reduction in alkali-activated Alumosilikatbindeschn, preferably solid binders, particularly preferably latent hydraulic binders (such as granulated blast furnace slag), and / or pozzolans (for example, natural pozzolans from ashes and rocks of volcanic origin and / or artificial pozzolans such as fly ashes, silica fume (microsilica), burnt ground clay and / or oil shale ash), particularly preferably granulated blastfurnace, fly ash, microsilica, slag, activated clay and / or metakaolin.
  • vegetable fats and / or oils
  • the invention also relates to the use of vegetable fats and / or oils, preferably selected from the group of sunflower oil, soybean oil, olive oil, rapeseed oil, palm oil, peanut oil, rapeseed oil, cottonseed oil and / or linseed oil, particularly preferably sunflower oil, particularly preferably vegetable oils which are liquid at temperatures greater than 0 ° C., for the hydrophobization of alkali-activatable aluminosilicate binders, preferably solid binders, particularly preferably latently hydraulic binders (such as granulated blastfurnace slag), and / or pozzolans (for example natural pozzolans from ashes and rocks of volcanic origin or artificial pozzolans such as fly ash, siliceous dust (microsilica), burnt ground clay and / or oil shale ash), in particular preference of granulated blastfurnace, fly ash, microsilica, slag, activated clay and / or metakaolin.
  • the vegetable oils and / or fats are each suitable for the uses of shrinkage reduction and hydrophobization for all alumosilicate binders described in this invention.
  • the present invention relates to grout, leveling compounds or coatings containing the mixtures according to the invention. Examples:
  • the mixtures are advantageously prepared by premixing first all the powdered constituents according to Table 1.
  • the binders granulated blastfurnace, microsilica and / or metakaolin are premixed together with the filler quartz sand.
  • the mixtures according to the invention M1a, M2a and M3a
  • this mixture is sprayed with the respective oil and mixed again.
  • M1 a is a comparative example with a shrinkage reducer not according to the invention.
  • Granulated blastfurnace 200 200 200 200 Microsilica 50 50 50 50 50 Metakaolin
  • Metakaolin 200 200 130 130

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

Abstract

L'invention concerne des mélanges contenant des liants d'aluminosilicate à activation alcaline, caractérisés en ce que le mélange contient des huiles et/ou des graisses végétales, ainsi que l'utilisation des graisses et/ou des huiles végétales pour la réduction du retrait et pour l'hydrophobisation dans des liants d'aluminosilicate à activation alcaline. L'invention concerne également des mortiers de jointement, des masses de lissage ou des revêtements contenant les mélanges selon l'invention.
EP10711401A 2009-04-22 2010-03-30 Système de liant à faible retrait Withdrawn EP2421806A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10711401A EP2421806A1 (fr) 2009-04-22 2010-03-30 Système de liant à faible retrait

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09158500 2009-04-22
PCT/EP2010/054158 WO2010121886A1 (fr) 2009-04-22 2010-03-30 Système de liant à faible retrait
EP10711401A EP2421806A1 (fr) 2009-04-22 2010-03-30 Système de liant à faible retrait

Publications (1)

Publication Number Publication Date
EP2421806A1 true EP2421806A1 (fr) 2012-02-29

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Country Status (9)

Country Link
US (1) US20120048147A1 (fr)
EP (1) EP2421806A1 (fr)
CN (1) CN102414143A (fr)
AU (1) AU2010241142B2 (fr)
BR (1) BRPI1016178A2 (fr)
CA (1) CA2759454A1 (fr)
MX (1) MX2011011166A (fr)
RU (1) RU2011147101A (fr)
WO (1) WO2010121886A1 (fr)

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US10926241B2 (en) * 2014-06-12 2021-02-23 Arizona Board Of Regents On Behalf Of Arizona State University Carbon dioxide adsorbents
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US10865146B2 (en) 2015-05-06 2020-12-15 En-Tech Corporation System and method for making and applying a non-Portland cement-based material
US10196310B2 (en) * 2016-08-04 2019-02-05 Geopolymer Solutions LLC Cold fusion concrete
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CA3098123A1 (fr) 2018-04-30 2019-11-07 Gcp Applied Technologies Inc. Impermeabilisation de masse sans eau
CA3125574A1 (fr) * 2018-12-31 2020-07-09 Materr'up Nouvelle formulation pour liant de construction bas carbone, procede de preparation et materiaux de construction
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US20120048147A1 (en) 2012-03-01
RU2011147101A (ru) 2013-05-27
MX2011011166A (es) 2011-11-07
AU2010241142A1 (en) 2011-11-10
CA2759454A1 (fr) 2010-10-28
CN102414143A (zh) 2012-04-11
BRPI1016178A2 (pt) 2016-04-19
AU2010241142B2 (en) 2014-02-06

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