WO2008012438A2 - Ciment géopolymérique à base de cendres volantes et à grande innocuité d'emploi. - Google Patents
Ciment géopolymérique à base de cendres volantes et à grande innocuité d'emploi. Download PDFInfo
- Publication number
- WO2008012438A2 WO2008012438A2 PCT/FR2007/001285 FR2007001285W WO2008012438A2 WO 2008012438 A2 WO2008012438 A2 WO 2008012438A2 FR 2007001285 W FR2007001285 W FR 2007001285W WO 2008012438 A2 WO2008012438 A2 WO 2008012438A2
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- WIPO (PCT)
- Prior art keywords
- fly ash
- weight
- sio
- ratio
- geopolymeric
- Prior art date
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Classifications
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- 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
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- 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
- C04B12/00—Cements not provided for in groups C04B7/00 - C04B11/00
- C04B12/005—Geopolymer cements, e.g. reaction products of aluminosilicates with alkali metal hydroxides or silicates
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- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
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- 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
- C04B2111/00215—Mortar or concrete mixtures defined by their oxide composition
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- 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
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- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S106/00—Compositions: coating or plastic
- Y10S106/01—Fly ash
Definitions
- Geopolymeric cement based on fly ash and high safety of use is
- the present invention relates to a new type of geopolymeric cement for construction.
- This cement is called geopolymeric cement because it is based on mineral geopolymer, consisting of alkaline aluminosilicates, better known as poly (sialate), poly (sialate-siloxo) and / or poly (sialate-disiloxo).
- the geopolymeric cement is based on silico-aluminous fly ash collected after the combustion of coal in thermal power plants. It is hardened at room temperature.
- Geopolymeric cements result from a mineral polycondensation reaction, called geosynthesis, as opposed to traditional hydraulic binders in which curing is the result of hydration of calcium aluminates and calcium silicates.
- Poly (sialate) has been adopted to refer to alumino-silicate geopolymers.
- the sialate network consists of SiO 4 and AlO 4 tetrahedra alternately linked by oxygen atoms.
- the cations (Na + , K + , Ca ++ , H 3 O + ) present in the structural cavities of the poly (sialate) balance the negative charge of Al 3+ in coordination (IV).
- the empirical formula of the polysialates is: M n ⁇ - (SiO 2 ) z -AlO 2 ⁇ n , wH 2 0, with M representing the cation K, Na or Ca and "n" the degree of polymerization; "Z" is equal to 1, 2, 3 or more, up to 32.
- the three-dimensional network (3D) polymers are of type:
- Binders or geopolymeric cements of poly (sialate), poly (sialate-siloxo) and / or poly (sialate-disiloxo) type have been the subject of several patents highlighting their particular properties. There may be mentioned, for example, the French patents: FR 2,489,290, 2,489,291, 2,528,818, 2,621,260, 2,659,319, 2,669,918, 2,758,323 and 2,839,970.
- the geopolymeric cements of the prior art are the result of a polycondensation between three distinct mineral reagents, it is that is to say: a) aluminosilicate oxide (Si 2 O 5, Al 2 O 2), or metakaolin, resulting from the calcination of kaolin clay at around 750 ° C. In the present description, we will designate it by MK-750.
- Reagents a) and b) are industrial products added to the reaction medium.
- ingredient c) calcium disilicate, occurs in the nascent state, in situ, in the strongly alkaline medium. It is generally the result of the chemical reaction between a calcium silicate such as calcium mellilite present in the blast furnace slag.
- fly ash the industrial residue of coal-fired power plants.
- fly ash the industrial residue of coal-fired power plants.
- fly ash there are several types of fly ash depending on whether they contain little or a lot of calcium, in the form of CaO combined with silico-aluminates or free lime.
- ashes from coal combustion are low in lime and are called Class F ash or silico-aluminous.
- Ashes from lignite are rich in lime and belong to class C, or calcium and sulpho-calcium. Table 1 reproduces some chemical compositions of these two types of ash.
- the geopolymer cement is essentially obtained from fly ash of class F, silico-aluminous, CaO content less than 8% by weight, preferably less than 4%.
- the fly ash used in the context of the present invention are those obtained in boilers burning at temperatures above LOOO 0 C.
- the ash is then in the form of small spheres consisting essentially of glassy parts.
- the ashes resulting from the lower temperature or fluidized bed combustion are excluded from the scope of the present invention at about 750-1000 ° C.
- These low-temperature ashes are not vitrified and some contain silico-aluminates very close to the metakaolin MK-750 mentioned below.
- This type of ash belongs to the geopolymeric cements of the prior art and is mentioned in FR 2,758,323, page 6, lines 15-18.
- Table 1 Chemical composition, deduced carbon, of fly ash (according to A. Jarrige, Fly ash, ro ries - industrial applications ed E rolls Paris 1971
- the geopolymerization temperature (hardening) at room temperature (20 ° C.) or at an oven (20 ° C.);
- the alkali silicates of sodium and potassium are classified as “Corrosive” if the molar ratio M 2 OrSiO 2 is greater than 0.69, and the SiO 2 : M 2 O ratio is lower than 1.45, M denoting Na and / or K.
- the reaction medium geopolymeric the ratio M 2 O: SiO 2 is less than 0.69, and the ratio SiO 2: M 2 O greater than 1.45, it is classified "Irritant".
- Such a geopolymer cement will be comparable to a traditional hydraulic binder. In the present invention, it is said to be highly safe to use.
- Table 2 indicates whether the geopolymeric cement of the prior art is safe to use, written YES, or is corrosive, writes NO.
- One of the oldest geopolymeric patents comprising fly ash is Schumann US 4,642,137 and its companion US 4,640,715, describing a powder formulation for blending with ordinary Portland cement.
- the presence of KOH potash alone is dangerous because it is corrosive.
- Brouns Seratius US Pat. No. 5,084,102 also discloses a class F ash powder mixture, blast furnace slag with a specific surface area of between 500-650 m 2 / kg, which is very fine, and sodium metasilicate powder of formula Na 2 .5H 2 O 2 O.SiO classified as "Corrosive". It also uses a plug activator, Portland cement clinker. The ratio of the alkali silicate M 2 OrSiO 2 is close to 1.0, and the SiO 2 : M 2 O ratio is close to 1.0. This cement is "corrosive". There is no job safety.
- Silverstrim US Pat. No. 5,601,643 (WO 96/25369) only includes class F fly ash and alkali silicate with sodium hydroxide NaOH.
- the geopolymerization temperature is 60-90 ° C., for more than 15 hours.
- the ratio of alkali silicate M 2 O: SiO 2 is between 1.0-5.0 and the ratio SiO 2 : M 2 O between 0.2-1.0.
- This cement is "corrosive". There is no job safety. The most curious is that in the text of the description of the Silverstrim patent it is suggested to use this highly corrosive formulation for common building and public works works, which is an aberration, because the workers should use protective clothing against the risk of a chemical accident.
- Skvara CZ 289,735 contains all the mineral ingredients, MK-750, blast-furnace slag with a specific surface area of 400-600 m 2 / kg, fly ash of class F, alkaline silicate, in addition to Portland cement as an activator.
- the hardening is preferably carried out at 60-90 ° C.
- the ratio of the alkali silicate M 2 O: SiO 2 is between 1.0-2.5 and the ratio SiO 2 : M 2 O between 0.4-1.0. This cement is "corrosive". There is no job safety.
- the other Skvara patent WO 03/078349 essentially uses class C fly ash, that is to say rich in free lime.
- certain activating agents mainly calcium salts, ie Ca ++ CaCO3 cations, CaSO4 and lime Ca (OH) 2, promote the curing which takes place at 60 0 C for 8 hours. There is no blast furnace slag.
- the alkali silicate has the ratio M 2 O: SiO 2 of between 1-1.66, and SiO 2 --M 2 O ratio between 0.6-1.0.
- the Nicholson patent WO 2005/019130 is mainly intended for the use of class C fly ash. It is known that this type of lime-rich ash hardens too rapidly, sometimes in the mixer. In order to increase the time of use of the geopolymeric mixture, boron salts, such as borax, are added thereto. The geopolymerization is at 90 ° C. for 16 hours. In the examples of the description of this patent, the molar ratio of the alkali silicate Na 2 OiSiO 2 is equal to 3.2 and the ratio SiO 2 : M 2 O is equal to 0.31. This cement is "corrosive". There is no job safety.
- the main object of the invention is the description of geopolymeric cements based on fly ash which, unlike the prior art, are endowed with a great safety of use favoring their use in the common applications of the building and works public.
- the industrial interest of the cements according to the present invention is obvious, if in addition it is added that their manufacture requires only 9 times less energy than that of Portland cement and that in addition, it emits 8 to 10 times less energy. CO 2 greenhouse gas.
- These geopolymeric cements contain:
- reagent (I) 10 to 15 parts by weight of alkali silicate solution containing 45% to 55% by weight of water, in which the molar ratio M 2 O 1 SiO 2 is less than 0.78, preferably less than 0 , 69, and the SiO 2 : M 2 O ratio greater than 1.28, preferably greater than 1.45; M denoting Na or K, and
- reagent (II) 10 to 20 parts by weight of water and - reagent (III): 5 to 15 parts by weight of blast furnace slag with a specific surface area of less than 400 m 2 / kg, preferably less than 380 m 2 / kg.
- the ratio between the quantity of fly ash and the amount of alkali silicate solution is greater than 4.
- the alkali silicate is potassium silicate
- this ratio between the amount of fly ash and the amount of alkali silicate solution is greater than 5. It will be seen in the examples of this description that this ratio varies depending on the ashes, being 6 or more. This is a great advantage because it allows the use of potassium silicate which, according to the prior art, generates cements with properties far superior to those of sodium silicate cements, at an equivalent economic cost.
- This new geopolymeric cement is a mixture of the following constituents: -
- the reagent (D is a water-soluble alkali silicate Since the description of the Davidovits patent (EP 0 153 097), it is known to those skilled in the art that said alkali silicate, the molar ratio M 2 Orsio 2 (M denotes either Na or K, or Na + K mixture) should be close to 0.5, ie substantially correspond to a silicate M 2 O: 2SiO 2 , nH 2 ⁇ , n being between 2 and 6.
- M is K.
- the molar ratio M 2 OrSiO 2 is between 0.5 and 0.78
- the alkali silicate solution contains 20-30% by weight of SiO 2 ,
- the reagent (III) is a basic calcium silicate, that is to say with the atomic ratio Ca / Si greater than or equal to 1, such as wollastonite Ca (SiO 3 ), gehlenite (2CaO.Al 2 O 3 . SiO 2 ), the akermanite (2CaO.MgO.2SiO 2 ).
- CaO desorption occurs very rapidly so that the Ca / Si atomic ratio becomes less than 1 and tends to 0.5.
- In situ production of soluble Ca (H 3 SiO 4) 2 calcium disilicate is involved in the geopolymeric reaction.
- Some by-products of industrial processing or high-temperature combustion mainly contain the basic silicates gehlenite, akermanite, wollastonite and are therefore very suitable. They are found in the blast furnace slag. When viewed under the microscope hardened cements from the mixtures described in the examples, we see that a thinner part of the slag grains has disappeared. Only an imprint of their initial form is seen, in the form of an envelope probably composed of akermanite which has not reacted. This process is very regular and can be complete in 30 minutes at room temperature.
- the specific surface is greater than 400 m 2 / kg, preferably between 500 and 800 m 2 / kg. This is not the case in this invention.
- 5 to 15 parts by weight of blast furnace slag with a specific surface area of less than 380 m 2 / kg or d 50 of between 15 and 25 microns will be used. This makes it possible to obtain lifetimes of the mixture spreading between 1-4 hours.
- the reagent (IV) is a class F silico-aluminous fly ash whose CaO content is less than 8% by weight, preferably less than 4%.
- the objective was to dissolve the fly ash in order to release the silica and alumina reactive elements. This required corrosive reaction conditions and temperature. In addition to the alkali silicate, therefore, sodium hydroxide NaOH and / or potassium KOH were added in large quantities.
- fly ash particles only control surface, with a different chemical mechanism. It is sufficient to make a geopolymer matrix using the reaction between the reagent (I) and the reagent (III). This geopolymer matrix, of non-corrosive chemical condition classified "irritant", is sufficiently reactive to activate the surface of the particles of ash, generating a surface geopolymeric reaction. This gives a geopolymeric cement with great safety of use.
- Table 4 Chemical composition of fly ash from the Czech Republic (Opatovice).
- This Australian fly ash is interesting because it allows us to clearly show the difference between the prior art method (see Table 2) and the geopolymeric cements according to the present invention. Indeed, this ash was used by the team of researchers at Perth Curtin University of Technology, under the direction of VJ. Rangan, to make a complete study on the behavior of the cement based on fly ash and concretes thus obtained, according to the technique of the prior art.
- the alkaline solution of sodium silicate is obtained by adding sodium hydroxide solutions NaOH, 8M, 12 M and 14 M. This gives molar ratios of the following alkali silicate:
- the mechanical properties are a function of the alkalinity and the curing temperature for about 24 hours.
- the ratio of the amount of fly ash to the amount of alkali silicate is 2.83.
- the molar ratio H 2 OiNa 2 O is 10 and if it increases to 12.5, the compressive strength drops from 70 MPa (at 90 ° C.) to 45 MPa (at 90 ° C.).
- the molar ratio Na 2 O: SiO 2 of all components the geopolymeric cement is 0.097 to 0.11.
- the ratio M 2 O: SiO 2 encompassing all the constituents is more than 2 times higher than that of the present invention.
- the prior art therefore uses 2 times more alkaline elements M 2 O than the present invention.
- Example 4 The mixture of Example 3 is taken up, but the potassium silicate is replaced by sodium silicate.
- the ratio of ash to sodium silicate becomes 4.6 instead of 6.0; the molar ratio H 2 OiNa 2 O increases from 40 to 28.
- the molar ratio M 2 OiSiO 2 encompassing all the components varies from 0.043 to 0.060, but remains much lower than the prior art of Table 6.
- Geopolymeric cement is classified as “irritating” and is highly safe to use.
- the amount of slag can vary from 5 to 15 parts by weight.
- the ratio between the amount of fly ash and the amount of alkali silicate solution is greater than 4.
- the alkali silicate is potassium silicate
- this ratio between the amount of fly ash and the amount of solution The ratio of alkali silicate is greater than 5. This ratio varies according to the ashes, which can be 6 or more. This is a great advantage because it allows the use of potassium silicate which, according to the prior art, generates cements with properties far superior to those of sodium silicate cements, at an equivalent economic cost.
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Abstract
Description
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Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007800286399A CN101541707B (zh) | 2006-07-28 | 2007-07-26 | 基于粉煤灰的无害使用的地质聚合物水泥 |
PL07823342.6T PL2061732T5 (pl) | 2006-07-28 | 2007-07-26 | Cement geopolimeryczny oparty na lotnych popiołach i nieszkodliwość jego stosowania |
AT07823342T ATE465983T1 (de) | 2006-07-28 | 2007-07-26 | Unschädlicher geopolymerzement auf der basis von flugasche |
EP07823342.6A EP2061732B2 (fr) | 2006-07-28 | 2007-07-26 | Ciment géopolymérique à base de cendres volantes et à grande innocuité d'emploi. |
US12/374,912 US8202362B2 (en) | 2006-07-28 | 2007-07-26 | Geopolymeric cement based on fly ash and harmless to use |
DK07823342.6T DK2061732T4 (da) | 2006-07-28 | 2007-07-26 | Uskadeligt anvendelig geopolymercement på grundlag af flyveaske |
DE200760006212 DE602007006212D1 (de) | 2006-07-28 | 2007-07-26 | Unschädlicher geopolymerzement auf der basis von flugasche |
CA 2658117 CA2658117C (fr) | 2006-07-28 | 2007-07-26 | Ciment geopolymerique a base de cendres volantes et a grande innocuite d'emploi |
AU2007279186A AU2007279186B2 (en) | 2006-07-28 | 2007-07-26 | Geopolymeric cement based on fly ash and harmless to use |
ES07823342T ES2345572T5 (es) | 2006-07-28 | 2007-07-26 | Cemento geopolimérico a base de cenizas volantes y de gran inocuidad de uso |
EG2009010123A EG25326A (en) | 2006-07-28 | 2009-01-28 | Geopolymeric cement based on fly ash and harmless to use. |
HK09111437A HK1133422A1 (en) | 2006-07-28 | 2009-12-07 | Geopolymeric cement based on fly ash and harmless to use |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0606923 | 2006-07-28 | ||
FR0606923A FR2904307B1 (fr) | 2006-07-28 | 2006-07-28 | Ciment geopolymerique a base de cendres volantes et a grande innocuite d'emploi. |
Publications (2)
Publication Number | Publication Date |
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WO2008012438A2 true WO2008012438A2 (fr) | 2008-01-31 |
WO2008012438A3 WO2008012438A3 (fr) | 2008-03-13 |
Family
ID=37735182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2007/001285 WO2008012438A2 (fr) | 2006-07-28 | 2007-07-26 | Ciment géopolymérique à base de cendres volantes et à grande innocuité d'emploi. |
Country Status (15)
Country | Link |
---|---|
US (1) | US8202362B2 (fr) |
EP (1) | EP2061732B2 (fr) |
CN (1) | CN101541707B (fr) |
AT (1) | ATE465983T1 (fr) |
AU (1) | AU2007279186B2 (fr) |
CA (1) | CA2658117C (fr) |
DE (1) | DE602007006212D1 (fr) |
DK (1) | DK2061732T4 (fr) |
EG (1) | EG25326A (fr) |
ES (1) | ES2345572T5 (fr) |
FR (1) | FR2904307B1 (fr) |
HK (1) | HK1133422A1 (fr) |
PL (1) | PL2061732T5 (fr) |
WO (1) | WO2008012438A2 (fr) |
ZA (1) | ZA200900600B (fr) |
Cited By (59)
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WO2010079414A2 (fr) | 2009-01-09 | 2010-07-15 | Stephen Alter | Compositions de géopolymères |
WO2010121886A1 (fr) * | 2009-04-22 | 2010-10-28 | Construction Research & Technology Gmbh | Système de liant à faible retrait |
WO2011003918A1 (fr) | 2009-07-06 | 2011-01-13 | Banah Uk Ltd. | Unités structurales de construction géopolymères et leurs procédés de fabrication |
FR2949227A1 (fr) * | 2009-08-21 | 2011-02-25 | France Etat Ponts Chaussees | Ciment geopolymetrique et son utilisation |
WO2011038123A1 (fr) * | 2009-09-24 | 2011-03-31 | Ash Improvement Technology, Inc. | Production d'additifs pour ciment à partir de produits de combustion de combustibles hydrocarbonés et d'oxydes métalliques augmentant la résistance |
WO2011064005A1 (fr) | 2009-11-26 | 2011-06-03 | Construction Research & Technology Gmbh | Système de liant inorganique pour la production de produits chimiques pour le bâtiment chimiquement résistants |
EP2389345A2 (fr) * | 2009-01-22 | 2011-11-30 | The Catholic University Of America | Liants composites géopolymères personnalisés destinés à des applications de ciment et de béton |
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WO2013152963A1 (fr) | 2012-04-11 | 2013-10-17 | Construction Research & Technology Gmbh | Produit de polycondensation à base de composés aromatiques, son procédé de fabrication et son utilisation |
WO2014067721A1 (fr) | 2012-10-31 | 2014-05-08 | Construction Research & Technology Gmbh | Liant aluminosilicaté à activation alcaline doté d'une stabilité supérieure au gel-dégel |
US8961684B2 (en) | 2009-09-24 | 2015-02-24 | Ash Improvement Technology Inc. | Production of coal combustion products for use in cementitious materials |
EP2853550A1 (fr) | 2013-09-27 | 2015-04-01 | Construction Research & Technology GmbH | Copolymères cationiques |
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US9365451B2 (en) | 2009-09-24 | 2016-06-14 | Ash Improvement Technology Inc. | Cement additives produced by combustion of coal with clay and slag |
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WO2018069062A1 (fr) | 2016-10-12 | 2018-04-19 | Construction Research & Technology Gmbh | Copolymères appropriés pour la plastification de systèmes de liant inorganique |
WO2018077772A1 (fr) | 2016-10-31 | 2018-05-03 | Basf Se | Additif pour compositions chimiques de construction |
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DE102021116928A1 (de) | 2021-06-30 | 2023-01-05 | Metten Technologies Gmbh & Co. Kg | Betonelement und Verfahren zu seiner Herstellung |
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WO2023217567A1 (fr) | 2022-05-09 | 2023-11-16 | Basf Se | Composition de mortier sec contenant un sel métallique d'un polyol |
EP4421048A1 (fr) | 2023-02-24 | 2024-08-28 | Construction Research & Technology GmbH | Matériau de remblayage |
WO2024175758A1 (fr) | 2023-02-24 | 2024-08-29 | Construction Research & Technology Gmbh | Matériau de remblayage |
WO2024180241A1 (fr) | 2023-03-01 | 2024-09-06 | Construction Research & Technology Gmbh | Compositions de béton projeté améliorées |
EP4438577A1 (fr) | 2023-03-28 | 2024-10-02 | Sika Technology AG | Mousse inorganique a base de ciment portland ordinaire |
WO2024200688A1 (fr) | 2023-03-28 | 2024-10-03 | Sika Technology Ag | Mousse inorganique à base de ciment portland ordinaire |
RU2802651C1 (ru) * | 2023-04-05 | 2023-08-30 | федеральное государственное бюджетное образовательное учреждение высшего образования "Южно-Российский государственный политехнический университет (НПИ) имени М.И. Платова" | Сырьевая смесь на основе золошлаковых отходов для получения геополимерного материала с низкой плотностью |
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Publication number | Publication date |
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ATE465983T1 (de) | 2010-05-15 |
PL2061732T3 (pl) | 2010-10-29 |
ES2345572T3 (es) | 2010-09-27 |
US8202362B2 (en) | 2012-06-19 |
CN101541707B (zh) | 2012-11-07 |
CA2658117C (fr) | 2014-05-13 |
PL2061732T5 (pl) | 2023-03-13 |
AU2007279186A1 (en) | 2008-01-31 |
FR2904307A1 (fr) | 2008-02-01 |
CN101541707A (zh) | 2009-09-23 |
DE602007006212D1 (de) | 2010-06-10 |
ES2345572T5 (es) | 2022-10-07 |
EP2061732B2 (fr) | 2022-06-15 |
HK1133422A1 (en) | 2010-03-26 |
WO2008012438A3 (fr) | 2008-03-13 |
DK2061732T4 (da) | 2022-09-12 |
EP2061732B1 (fr) | 2010-04-28 |
CA2658117A1 (fr) | 2008-01-31 |
US20100010139A1 (en) | 2010-01-14 |
EG25326A (en) | 2011-12-14 |
EP2061732A2 (fr) | 2009-05-27 |
DK2061732T3 (da) | 2010-08-09 |
FR2904307B1 (fr) | 2008-09-05 |
ZA200900600B (en) | 2010-05-26 |
AU2007279186B2 (en) | 2012-06-14 |
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