WO2014177695A1 - Système d'adjuvant comprenant un phosphonate polyalcoxylé, un polycarboxylate polyalcoxylé et un retardateur de prise et son utilisation - Google Patents
Système d'adjuvant comprenant un phosphonate polyalcoxylé, un polycarboxylate polyalcoxylé et un retardateur de prise et son utilisation Download PDFInfo
- Publication number
- WO2014177695A1 WO2014177695A1 PCT/EP2014/058992 EP2014058992W WO2014177695A1 WO 2014177695 A1 WO2014177695 A1 WO 2014177695A1 EP 2014058992 W EP2014058992 W EP 2014058992W WO 2014177695 A1 WO2014177695 A1 WO 2014177695A1
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- WO
- WIPO (PCT)
- Prior art keywords
- polyalkoxylated
- retarder
- group
- formula
- portland cement
- Prior art date
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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
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/243—Phosphorus-containing polymers
- C04B24/246—Phosphorus-containing polymers containing polyether side chains
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/10—Carbohydrates or derivatives thereof
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2641—Polyacrylates; Polymethacrylates
- C04B24/2647—Polyacrylates; Polymethacrylates containing polyether side chains
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
Definitions
- Adjuvant system comprising a polyalkoxylated phosphonate, a polyalkoxylated polycarboxylate and a set retarder and its use
- the present invention relates to an adjuvant system for hydraulic composition and its use to improve the maintenance of rheology of hydraulic compositions and more particularly of Portland cement compositions.
- the hydraulic compositions are compositions comprising a hydraulic binder, that is to say a compound having the property of hydrating in the presence of water and whose hydration makes it possible to obtain a solid having characteristics of mechanical strengths.
- the hydraulic compositions are for example concrete compositions, screed or mortar.
- fluidizers also called plasticizers or superplasticizers
- plasticizers or superplasticizers additives
- superplasticizers additives
- These fluidifiers also provide a maintenance of rheology thus allowing a use of the hydraulic binder composition over a longer period before hardening and setting.
- adjuvants comprising in admixture at least one polyalkoxylated phosphonate and at least one second polyalkoxylated polycarboxylate superplasticizer.
- An object of the present invention is therefore to provide an adjuvant system for improving the fluidity maintenance of a hydraulic composition, especially Portland cement, especially at a reduced cost.
- Another object of the present invention is to provide an adjuvant system for improving the maintenance of fluidity of a hydraulic composition for a long time.
- one of the objectives of the present invention is to provide an adjuvant for maintaining fluidity over a period greater than or equal to 90 minutes, for example from 240 to 300 minutes, in particular greater than 300 minutes.
- Another object of the present invention is to provide a method for limiting the dosage of polyalkoxylated phosphonate in the adjuvants while improving the fluidity maintenance of a hydraulic composition.
- an adjuvant system for hydraulic composition comprising:
- R represents H, an ammonium, an amino group or an alkali or alkaline earth metal
- the retarder of taken is a retarder of formula (I):
- R represents H, an ammonium, an amino group or an alkaline or alkaline earth metal n represents an integer between 2 and 6, for example 4 or 5.
- n 4 or 5, preferably 4.
- the set retarder is a compound of formula (Ia):
- n represents an integer between 2 and 6, for example 4 or 5.
- hydraulic composition is understood to mean a composition comprising a hydraulic binder.
- hydraulic composition is meant a composition comprising a hydraulic binder, optionally a granulate, a mineral addition, water, an adjuvant (such as a superplasticizer, an anti-foam additive, an air-entraining additive, a plasticizer or a plasticizer).
- an adjuvant such as a superplasticizer, an anti-foam additive, an air-entraining additive, a plasticizer or a plasticizer.
- the hydraulic compositions are, for example, concrete, mortar or screed compositions.
- aggregates is meant a set of mineral grains with a mean diameter of between 0 and 125 mm. Depending on their diameter, aggregates are classified into one of six families: fillers, sand, sand, gravel, chippings and ballast (standard XP P 18-545). The most used aggregates are:
- chippings with a diameter of between 2 mm and 63 mm.
- Sand is therefore included in the definition of granulate according to the invention.
- the fillers can in particular be of calcareous or dolomitic origin.
- hydraulic binder is understood to mean any compound having the property of hydrating in the presence of water and whose hydration makes it possible to obtain a solid having mechanical characteristics, in particular a cement such as a Portland cement, aluminous cement, pozzolanic cement or an anhydrous or semi-hydrated calcium sulphate.
- the hydraulic binder may be a cement according to EN197-1 (2001) and in particular a Portland cement, mineral additions, especially dairy, or a cement comprising mineral additions.
- cement and in particular "Portland cement” means a cement according to the EN 197-1 (2001) standard and in particular a CEM I, CEM II, CEM III, CEM IV or CEM V type cement according to the NF Cement standard.
- the cement, and in particular Portland cement as defined in the EN 197-1 (2001) standard, may comprise mineral additions.
- the term "mineral additions” refers to slags (as defined in NF Cement Standard EN 197-1 (2001) section 5.2.2), steelmaking slags, pozzolanic materials (as defined in NF Cement Standard). EN 197-1 (2001) paragraph 5.2.3), fly ash (as defined in standard Cement NF EN 197-1 (2001) section 5.2.4), calcined shales (as defined in NF Cement Standard EN 197-1 (2001) section 5.2.5), limescale (as defined in standard Cement NF EN 197-1 (2001) section 5.2.6) or fumed silica (as defined in the standard Cement NF EN 197-1 (2001) section 5.2.7) or their mixtures.
- the hydraulic compositions of the invention are Portland cement compositions as defined in standard EN 197-1 (2001).
- the Portland cement compositions according to the invention may further comprise mineral additions as defined above, in particular with the exception of aluminate.
- the invention more particularly covers the use of said adjuvant system as a fluidizer for hydraulic compositions of Portland cement, in particular to improve the maintenance of fluidity of these hydraulic compositions over time, especially in the long term, especially over longer or equal periods of time. at 90 minutes, preferably between 240 and 300 min, especially greater than 300 minutes.
- the polyalkoxylated polycarboxylate polymer is preferably a comb polymer comprising a backbone and side chains comprising the following units (III) and (IV):
- R1 a chemical bond or an alkylene group of 1 to 8 carbon atoms
- m 0 or 1
- R2 denotes an oxygen atom or an amino group
- Alk denotes an alkylene of 2 to 4 carbon atoms linear or branched
- n denotes an integer between 3 and 500
- R3 denotes a hydrogen atom or a hydrocarbon group such as an alkyl containing from 1 to 25 carbon atoms.
- R4 comprises an acidic and / or dissociated anionic function.
- superplasticizer of the comb polymer type is also meant superplasticizers obtained by mixing different polymers having side chains of type (I) and (II).
- the polyalkoxylated phosphonate polymer is preferably a polyalkoxylated phosphonate of formula (V) or a salt thereof, alone or as a mixture:
- R5 is a hydrogen atom or a monovalent hydrocarbon group having 1 to 18 carbon atoms and optionally one or more heteroatoms;
- the R are similar or different from each other and represent an alkylene such as ethylene, propylene, butylene, amylene, octylene or cyclohexene, or an arylene such as styrene or methylstyrene, the R, optionally contain one or more heteroatoms;
- Q is a hydrocarbon group having 2 to 18 carbon atoms and optionally one or more heteroatoms;
- A is an alkylidene group having 1 to 5 carbon atoms
- the R j are similar or different from each other and can be chosen from:
- the alkyl group comprising from 1 to 18 carbon atoms and capable of carrying [R 5 -O (R 10) m 1 , R 5 and R 3 groups, having the abovementioned meanings,
- m is a number greater than or equal to 0
- Q, N and R j may together form one or more rings, which ring (s) may further contain one or more other heteroatoms.
- the polyalkoxylated phosphonate consists of a water-soluble or water-dispersible organic compound comprising at least one amino-di- (alkylenephosphonic) group and at least one polyoxyalkylated chain or at least one of its salts.
- the polyalkoxylated phosphonate is a compound of formula (V) in which:
- R 5 is a hydrogen atom or a monovalent hydrocarbon group, saturated or unsaturated, having from 1 to 8 carbon atoms and optionally one or more heteroatoms;
- the Rs represent ethylene or propylene or a mixture of ethylene or propylene, preferably 60 to 100% of the Rs are ethylene;
- Q is a hydrocarbon group having 2 to 8 carbon atoms and optionally one or more heteroatoms
- A is the methylene group
- each of R j is CH 2 -PO 3 H 2 ;
- n is an integer from 10 to 250;
- q is an integer equal to 1 or 2;
- the polyalkoxylated phosphonate may be a polyalkoxylated phosphonate of formula (V) in which R5 is a methyl group, the Rs are groups ethylene and propylene, m being between 30 and 50, r + q is 1, Q is an ethylene group, A is a methylene group, y is 1 and R j is CH 2 -PO 3 H 2 .
- the retarder is chosen from gluconic acid and its salts, in particular alkaline salts, for example sodium, lithium or potassium, ammonium or amine group.
- the system according to the invention preferably comprises, by dry weight relative to the weight of total binder, 0.03 to 1% of polyalkoxylated phosphonate, 0.03 to 1% of polyalkoxylated polycarboxylate and 0.03 to 0.3 % of retarder of formula (I).
- total binder means the sum of the masses of cement, preferably Portland cement, mineral additions and fillers (filler).
- the fillers can in particular be of calcareous, siliceous or dolomitic origin.
- the system according to the invention preferably comprises, by dry weight relative to the weight of total binder, preferably relative to the weight of Portland cement and any mineral additions as defined above, 0.09 to 0.65 %, preferably 0.09 to 0.35% polyalkoxylated phosphonate, 0.09 to 0.35% polyalkoxylated polycarboxylate and 0.06 to 0.24% retarder of formula (I).
- a retarder of formula (I), in particular in the aforementioned proportions, added to an adjuvant system comprising at least one polyalkoxylated polycarboxylate and at least one polyalkoxylated phosphonate makes it possible to to improve the maintenance of fluidity (maintenance of rheology), in particular in the long term, especially over durations greater than or equal to 90 minutes, preferably between 240 and 300 min, especially greater than 300 minutes, compared to other known retarders of the skilled person.
- the retarders of formula (I) compared to other retarders known to those skilled in the art advantageously allow, in combination with a polyalkoxylated phosphonate and a polyalkoxylated polycarboxylate, to obtain a hydraulic composition, preferably Portland cement, with a maintenance of rheology especially over durations greater than or equal to 90 min, preferably between 240 and 300 min, preferably greater than 300 min.
- the inventors have shown that the replacement of a part of the polyalkoxylated polycarboxylate or of part of the polyalkoxylated phosphonate, especially a portion of the polyalkoxylated phosphonate, with an equivalent amount of retarder of formula (I), especially in the aforementioned proportions, in a system comprising at least one polyalkoxylated polycarboxylate and at least one polyalkoxylated phosphonate makes it possible to improve the maintaining fluidity (maintenance of rheology or maintenance of workability) especially in the long term especially over durations greater than or equal to 90 minutes, preferably between 240 and 300 min, especially greater than 300 minutes.
- the adjuvant system of the present invention may further comprise additives of the air-entraining additive type and / or antifoam additive.
- a system consisting of the three components described above, excluding other adjuvants, at least adjuvants likely to affect workability and early resistance, for example excluding aluminate .
- the invention also relates to a process for preparing the adjuvant system according to the invention comprising the step of mixing at least one polyalkoxylated polycarboxylate, at least one polyalkoxylated phosphonate and a retarder of formula (I).
- the invention also relates to a process for the preparation of hydraulic compositions, preferably of Portland cement, in particular of concrete, mortar or screed, comprising the step of adding in appropriate quantity respectively
- the adjuvant system according to the invention is therefore added to the mixing water.
- polyalkoxylated polycarboxylate the polyalkoxylated phosphonate and the retarder of formula (I) are as defined above.
- the invention also relates to a process for the preparation of hydraulic compositions, preferably of Portland cement, in particular of concrete, mortar or screed, comprising the step of adding in appropriate quantity respectively
- the solid components of the hydraulic composition preferably Portland cement, in particular to the hydraulic binder, preferably Portland cement, or sand.
- polyalkoxylated polycarboxylate the polyalkoxylated phosphonate and the retarder of formula (I) are as defined above.
- the invention also relates to a method for preparing a hydraulic composition, preferably Portland cement, comprising the mixing step:
- At least one hydraulic binder preferably Portland cement
- the invention also relates to a hydraulic composition, preferably of Portland cement, comprising an adjuvant system according to the invention.
- the invention also relates to the use of the adjuvant system described for the preparation of hydraulic compositions, preferably of Portland cement.
- the adjuvant system is added to the hydraulic composition during mixing, preferably by adding to the mixing water.
- the adjuvants can be added to the solid components of the hydraulic composition, including hydraulic binder, preferably Portland cement, and / or sand.
- the present invention also relates to the use of the adjuvant system as a fluidizer for hydraulic compositions, in particular of Portland cement, in particular to improve the maintenance of fluidity (or maintainability of workability) of said hydraulic compositions over time, especially in the long term especially over durations greater than or equal to 90 minutes, preferably between 240 and 300 min, in particular greater than 300 minutes.
- the invention relates to the use of an adjuvant system comprising, by dry weight relative to the weight of total binder, especially with respect to the weight of Portland cement and any mineral additions, 0.03 to 1% of polyalkoxylated phosphonate, 0.03 to 1% polyalkoxylated polycarboxylate and 0.03 to 0.3% retarder of formula (I) as a fluidizer for hydraulic compositions, in particular to improve the maintenance of fluidity (or maintenance of workability) hydraulic compositions over time, especially in the long term especially over durations greater than or equal to 90 minutes, preferably between 240 and 300 min, especially greater than 300 minutes.
- an adjuvant system comprising, by dry weight relative to the weight of total binder, especially with respect to the weight of Portland cement and any mineral additions, 0.03 to 1% of polyalkoxylated phosphonate, 0.03 to 1% polyalkoxylated polycarboxylate and 0.03 to 0.3% retarder of formula (I) as a fluidizer for hydraulic compositions, in particular to improve the maintenance of fluid
- the invention relates to the use of an adjuvant system comprising, by dry weight relative to the total binder weight, from 0.09 to 0.65%, preferably from 0.09 to 0.35% of polyalkoxylated phosphonate, 0.09 to 0.35% polyalkoxylated polycarboxylate and 0.06 to 0.24% retarder of formula (I), as a fluidizer for hydraulic compositions, in particular to improve the maintenance of fluidity (or maintenance of workability) of hydraulic compositions over time, especially in the long term especially over durations greater than or equal to 90 minutes, preferably between 240 and 300 min, especially greater than 300 minutes.
- an adjuvant system comprising, by dry weight relative to the total binder weight, from 0.09 to 0.65%, preferably from 0.09 to 0.35% of polyalkoxylated phosphonate, 0.09 to 0.35% polyalkoxylated polycarboxylate and 0.06 to 0.24% retarder of formula (I), as a fluidizer for hydraulic compositions, in particular to improve the maintenance of fluidity (or maintenance of
- the present invention also relates to a process for improving the maintenance of fluidity (or maintenance of workability) over time of a hydraulic composition, in particular Portland cement, comprising a step of bringing said hydraulic composition into contact with a hydraulic system. adjuvant according to the invention.
- the characterizations of the hydraulic compositions obtained are made using the Abrams cone by measuring the slump test for the concretes and by the measurement of mortar spreading using the MBE cone (Mortar of Equivalent concrete) of 700 cm 3 , according to the CALIBE method described in "Results and Recommendations of the project National CALIBE ", 2004, Edition: Press of the National School of Roads and Bridges, Chapter 5 page 1 1 1:” The MBE method ".
- the method determination of the Abrams cone is carried out in accordance with the EN 12350-2 standard of 2012.
- the test consists in filling with a freshly prepared concrete a bottomless mold of frustoconical shape of following dimensions:
- the cone is lifted vertically.
- the spread is measured between 5 and 300 minutes in four diameters at 45 ° with calipers.
- the result of the spread measurement is the average of the four values at +/- 10 mm.
- the tests are carried out at 20 ° C.
- the adjuvant system is added to the hydraulic composition by the mixing water.
- the concentrations of the adjuvants are expressed respectively as a percentage of dry extract relative to the amount of total binder (cement + filler and / or cement additives).
- the polyalkoxylated phosphonate (A) is CHRYSO®Fluid Optima 100 marketed by CHRYSO.
- the polyalkoxylated polycarboxylate (B) is a polyalkoxylated polycarboxylate mixture marketed by CHRYSO.
- the retarder (C) according to the invention is sodium gluconate.
- % loss (value of spreading or slump at 300 minutes - value of spreading or slump at initial T5) / value of spreading or slump at initial T5
- % loss (value of spreading or slump at 90 minutes - value of spreading or slump at initial T5) / value of spreading or slump at initial T5
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Curing Cements, Concrete, And Artificial Stone (AREA)
- Lubricants (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/888,671 US20160168029A1 (en) | 2013-05-03 | 2014-05-02 | Additive system including a polyalkoxylated phosphonate, a polyalkoxylated polycarboxylate and a retarding agent, and use thereof |
MA38623A MA38623B1 (fr) | 2013-05-03 | 2014-05-02 | Système d'adjuvant comprenant un phosphonate polyalcoxylé, un polycarboxylate polyalcoxylé et un retardateur de prise et son utilisation |
EP14725030.2A EP2991948A1 (fr) | 2013-05-03 | 2014-05-02 | Système d'adjuvant comprenant un phosphonate polyalcoxylé, un polycarboxylate polyalcoxylé et un retardateur de prise et son utilisation |
PH12015502453A PH12015502453A1 (en) | 2013-05-03 | 2015-10-23 | Additive system including a polyalkoxylated phosphonate, a polyalkoxylated polycarboxylate and a retarding agent, and use thereof |
ZA2015/08036A ZA201508036B (en) | 2013-05-03 | 2015-10-29 | Additive system including a polyalkoxylated phosphonate, a polyalkoxylated polycarboxylate and a retarding agent, and use thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1354090A FR3005314B1 (fr) | 2013-05-03 | 2013-05-03 | Systeme d'adjuvant comprenant un phosphonate polyalcoxyle, un polycarboxylate polyalcoxyle et un retardateur de prise et son utilisation |
FR1354090 | 2013-05-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014177695A1 true WO2014177695A1 (fr) | 2014-11-06 |
Family
ID=49237259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2014/058992 WO2014177695A1 (fr) | 2013-05-03 | 2014-05-02 | Système d'adjuvant comprenant un phosphonate polyalcoxylé, un polycarboxylate polyalcoxylé et un retardateur de prise et son utilisation |
Country Status (7)
Country | Link |
---|---|
US (1) | US20160168029A1 (fr) |
EP (1) | EP2991948A1 (fr) |
FR (1) | FR3005314B1 (fr) |
MA (1) | MA38623B1 (fr) |
PH (1) | PH12015502453A1 (fr) |
WO (1) | WO2014177695A1 (fr) |
ZA (1) | ZA201508036B (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3925941A1 (fr) * | 2020-06-19 | 2021-12-22 | Sika Technology Ag | Procédé pour augmenter l'aptitude au façonnage d'une composition de liant comprenant du ciment portland, de l'argile calcinée et du calcaire |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2696736A1 (fr) | 1992-10-12 | 1994-04-15 | Chryso | Fluidifiants pour suspensions aqueuses de particules minérales et pâtes de liant hydraulique. |
FR2776285A1 (fr) | 1998-03-19 | 1999-09-24 | Chryso | Dispersant hydrosoluble ou hydrodispersable pour compositions de ciment et suspensions aqueuses de particules minerales, et adjuvants contenant un tel dispersant |
FR2893938A1 (fr) | 2005-11-28 | 2007-06-01 | Lafarge Sa | Procede de realisation de pieces et ouvrages en beton |
FR2942223A1 (fr) * | 2009-02-17 | 2010-08-20 | Lafarge Sa | Liant hydraulique rapide pour pieces et ouvrages en beton contenant un sel de calcium |
WO2011015781A1 (fr) | 2009-08-05 | 2011-02-10 | Lafarge | Melange fluidifiant pour composition a base d'un liant hydraulique |
WO2011161383A1 (fr) * | 2010-06-24 | 2011-12-29 | Lafarge | Procede de transport d'une composition hydraulique |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4746367A (en) * | 1986-12-17 | 1988-05-24 | The Dow Chemical Company | Superplasticizer composition for use with hydraulic cements |
EP1731491A1 (fr) * | 2005-06-10 | 2006-12-13 | Lafarge | Compositions de liant rapide pour pièces et ouvrages en béton contenant un sel de calcium |
US20080227891A1 (en) * | 2007-03-14 | 2008-09-18 | Nova Chemicals Inc. | Methods for making concrete compositions |
-
2013
- 2013-05-03 FR FR1354090A patent/FR3005314B1/fr active Active
-
2014
- 2014-05-02 US US14/888,671 patent/US20160168029A1/en not_active Abandoned
- 2014-05-02 WO PCT/EP2014/058992 patent/WO2014177695A1/fr active Application Filing
- 2014-05-02 EP EP14725030.2A patent/EP2991948A1/fr not_active Withdrawn
- 2014-05-02 MA MA38623A patent/MA38623B1/fr unknown
-
2015
- 2015-10-23 PH PH12015502453A patent/PH12015502453A1/en unknown
- 2015-10-29 ZA ZA2015/08036A patent/ZA201508036B/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2696736A1 (fr) | 1992-10-12 | 1994-04-15 | Chryso | Fluidifiants pour suspensions aqueuses de particules minérales et pâtes de liant hydraulique. |
FR2776285A1 (fr) | 1998-03-19 | 1999-09-24 | Chryso | Dispersant hydrosoluble ou hydrodispersable pour compositions de ciment et suspensions aqueuses de particules minerales, et adjuvants contenant un tel dispersant |
FR2893938A1 (fr) | 2005-11-28 | 2007-06-01 | Lafarge Sa | Procede de realisation de pieces et ouvrages en beton |
FR2942223A1 (fr) * | 2009-02-17 | 2010-08-20 | Lafarge Sa | Liant hydraulique rapide pour pieces et ouvrages en beton contenant un sel de calcium |
WO2011015781A1 (fr) | 2009-08-05 | 2011-02-10 | Lafarge | Melange fluidifiant pour composition a base d'un liant hydraulique |
WO2011161383A1 (fr) * | 2010-06-24 | 2011-12-29 | Lafarge | Procede de transport d'une composition hydraulique |
Non-Patent Citations (1)
Title |
---|
"Résultats et Recommandations du projet National CALIBE", 2004, PRESSE DE L'ÉCOLE NATIONALE DES PONTS ET CHAUSSÉES, pages: 111 |
Also Published As
Publication number | Publication date |
---|---|
MA38623B1 (fr) | 2018-10-31 |
ZA201508036B (en) | 2017-08-30 |
FR3005314B1 (fr) | 2019-06-21 |
EP2991948A1 (fr) | 2016-03-09 |
US20160168029A1 (en) | 2016-06-16 |
FR3005314A1 (fr) | 2014-11-07 |
PH12015502453A1 (en) | 2016-02-22 |
MA38623A1 (fr) | 2018-03-30 |
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