EP4281426A1 - Composition de liant hydraulique de laitiers de hauts fourneaux - Google Patents
Composition de liant hydraulique de laitiers de hauts fourneauxInfo
- Publication number
- EP4281426A1 EP4281426A1 EP22702437.9A EP22702437A EP4281426A1 EP 4281426 A1 EP4281426 A1 EP 4281426A1 EP 22702437 A EP22702437 A EP 22702437A EP 4281426 A1 EP4281426 A1 EP 4281426A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polymer
- formula
- hydraulic binder
- group
- cation
- 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.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 151
- 239000011230 binding agent Substances 0.000 title claims abstract description 113
- 239000002893 slag Substances 0.000 title claims abstract description 39
- 229920000642 polymer Polymers 0.000 claims abstract description 141
- 150000002357 guanidines Chemical class 0.000 claims abstract description 74
- 150000003751 zinc Chemical class 0.000 claims abstract description 63
- 239000012190 activator Substances 0.000 claims abstract description 38
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 17
- 229910000323 aluminium silicate Inorganic materials 0.000 claims abstract description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 62
- 229910052739 hydrogen Inorganic materials 0.000 claims description 62
- 239000001257 hydrogen Substances 0.000 claims description 62
- 150000001768 cations Chemical class 0.000 claims description 59
- 238000007792 addition Methods 0.000 claims description 39
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 39
- 125000004432 carbon atom Chemical group C* 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 27
- 239000011707 mineral Substances 0.000 claims description 27
- 235000010755 mineral Nutrition 0.000 claims description 27
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 claims description 24
- 238000012423 maintenance Methods 0.000 claims description 23
- 150000001875 compounds Chemical class 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 21
- 239000002671 adjuvant Substances 0.000 claims description 18
- 239000004568 cement Substances 0.000 claims description 18
- 125000002947 alkylene group Chemical group 0.000 claims description 15
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 15
- 125000003545 alkoxy group Chemical group 0.000 claims description 14
- 150000003839 salts Chemical class 0.000 claims description 13
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 claims description 12
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 claims description 12
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 10
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 8
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 6
- DXTIKTAIYCJTII-UHFFFAOYSA-N guanidine acetate Chemical compound CC([O-])=O.NC([NH3+])=N DXTIKTAIYCJTII-UHFFFAOYSA-N 0.000 claims description 5
- NDEMNVPZDAFUKN-UHFFFAOYSA-N guanidine;nitric acid Chemical compound NC(N)=N.O[N+]([O-])=O.O[N+]([O-])=O NDEMNVPZDAFUKN-UHFFFAOYSA-N 0.000 claims description 5
- ZJYYHGLJYGJLLN-UHFFFAOYSA-N guanidinium thiocyanate Chemical compound SC#N.NC(N)=N ZJYYHGLJYGJLLN-UHFFFAOYSA-N 0.000 claims description 5
- 239000011592 zinc chloride Substances 0.000 claims description 5
- 235000005074 zinc chloride Nutrition 0.000 claims description 5
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- XOROEPUWPNHOPP-UHFFFAOYSA-N O[S-](=O)=O.[Ca+] Chemical compound O[S-](=O)=O.[Ca+] XOROEPUWPNHOPP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 239000001175 calcium sulphate Substances 0.000 claims description 3
- 235000011132 calcium sulphate Nutrition 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- 229920000876 geopolymer Polymers 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 159000000011 group IA salts Chemical class 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 239000004115 Sodium Silicate Substances 0.000 claims 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims 1
- 229910052911 sodium silicate Inorganic materials 0.000 claims 1
- -1 alumino-silicate compound Chemical class 0.000 abstract description 2
- 150000003567 thiocyanates Chemical class 0.000 description 15
- 239000004570 mortar (masonry) Substances 0.000 description 13
- 238000002156 mixing Methods 0.000 description 12
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 9
- 239000000654 additive Substances 0.000 description 9
- 239000011701 zinc Substances 0.000 description 9
- 229910052725 zinc Inorganic materials 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 239000011833 salt mixture Substances 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- 125000005842 heteroatom Chemical group 0.000 description 6
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 150000002430 hydrocarbons Chemical group 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- 235000019738 Limestone Nutrition 0.000 description 3
- 229910018828 PO3H2 Inorganic materials 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000001595 flow curve Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- 102220007331 rs111033633 Human genes 0.000 description 3
- 102220029346 rs34541442 Human genes 0.000 description 3
- 102220012898 rs397516346 Human genes 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 2
- 235000015076 Shorea robusta Nutrition 0.000 description 2
- 244000166071 Shorea robusta Species 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- HGCIXCUEYOPUTN-UHFFFAOYSA-N cyclohexene Chemical compound C1CCC=CC1 HGCIXCUEYOPUTN-UHFFFAOYSA-N 0.000 description 2
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229910001414 potassium ion Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000001453 quaternary ammonium group Chemical group 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical group CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 1
- BKOOMYPCSUNDGP-UHFFFAOYSA-N 2-methylbut-2-ene Chemical group CC=C(C)C BKOOMYPCSUNDGP-UHFFFAOYSA-N 0.000 description 1
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000001118 alkylidene group Chemical group 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 125000000732 arylene group Chemical group 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001033 granulometry Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000006254 rheological additive Substances 0.000 description 1
- 235000002020 sage Nutrition 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 description 1
- 239000008030 superplasticizer Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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
- C04B28/08—Slag cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
-
- 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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- 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
- C04B2103/308—Slump-loss preventing agents
-
- 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
-
- 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 a hydraulic binder composition
- a hydraulic binder composition comprising at least one alumino-siliceous compound and an alkaline or sulphate activator and a reduced quantity of clinker and the maintenance of the workability of the hydraulic composition obtained, in particular by adding water to the composition. of hydraulic binder.
- the usual cementitious compositions include a variable, sometimes high proportion of clinker.
- a cementitious composition according to standard NF EN 197-1 of 2012 comprises from 5 to 95% by weight of clinker.
- compositions comprising at least one alumino-siliceous compound, for example blast furnace slag, and an alkaline or sulphate activator.
- One objective of the present invention is to provide a composition comprising at least one alumino-siliceous compound, for example blast furnace slag, and an alkaline or sulphate activator which makes it possible to obtain a hydraulic composition having improved maintenance of fluidity.
- alumino-siliceous compound for example blast furnace slag
- an alkaline or sulphate activator which makes it possible to obtain a hydraulic composition having improved maintenance of fluidity.
- Another object of the present invention is to provide such a composition allowing fluidity to be maintained for 1 hour or 1 hour 30 minutes. Still other objectives will appear on reading the description of the invention which follows.
- a hydraulic binder comprising at least one alumino-siliceous compound, for example blast furnace slag, and an alkaline or sulphate activator and a maximum of 10% by weight of clinker, preferably from 0 to 10% by weight of clinker;
- R 1 and R 2 independently represent hydrogen or methyl
- R 3 represents a hydrogen or a group of formula -COO(M)i/ m
- R 4 represents a group of formula -(CH 2 ) P -(OAIk)qR 5 in which:
- each OAlk unit of the group -(OAIk) q - independently represents a linear or branched alkylene comprising from 2 to 4 carbon atoms
- R 5 represents -OH or a linear or branched alkoxyl comprising from 1 to 4 carbon atoms
- R 11 and R 12 independently represent hydrogen or methyl
- R 13 represents a hydrogen or a group of formula -COO(M)i/ m ,
- - b is a number from 0.75 to 0.95, such that (100 xb) represents the molar percentage of units of formula (II) within the polymer.
- the inventors have advantageously shown that the addition of guanidine salt and/or of zinc salt and of polymer (P) according to the invention allows the improvement of the maintenance of fluidity (also called maintenance of workability) in the time of a hydraulic composition prepared from the hydraulic binder composition (CLH), in particular by adding at least water, relative to a composition not comprising guanidine salt, zinc salt and polymer ( P) according to the invention.
- the improvement in the retention of workability measured for example by the evolution of the threshold stress of a hydraulic composition obtained from the CLH composition, in particular by addition of water, during time, is preferably long-term, namely over a period greater than or equal to 45 minutes, in particular greater than 60 minutes, or even greater than 90 minutes when the composition is used at 20°C.
- threshold stresses of the order of 1 to 10 Pa during the same time intervals that is to say over a period greater than or equal to 45 minutes, in particular greater than 60 minutes, or even greater than 90 minutes. when the composition is used at 20°C.
- the threshold stress can in particular be measured using a rheometer by performing several measurements of the applied stress to obtain each corresponding strain rate value.
- the applied stress below which the strain rate becomes very low or zero can be considered as the threshold stress.
- the hydraulic binder composition (CLH) may be free of clinker.
- Blast furnace slag is defined in particular in parts 3.7 and 3.6 of standard NF EN 15167-1. Blast furnace slags are mostly glassy materials and are by-products of cast iron production. The blast furnace slags used in the hydraulic binder compositions are preferably finely ground to a maximum diameter of 100 to 150 ⁇ m, the diameter being measured by any method known to those skilled in the art, for example by laser granulometry. Blast furnace slags generally require calcic or sulpho-calcic activation or with the help of a strong base.
- the hydraulic binder composition (CLH) of the invention comprises an alkaline or sulphate activator of alumino-siliceous compounds, in particular blast-furnace slags, preferably a calcium or sulphate, preferably sulpho-calcium, or an alkali salt, preferably carbonate, hydroxide, silicate, sodium or potassium, or mixtures thereof or a calcium sulphate activator.
- This activator is preferably used in proportions of 0.1 to 20% by dry weight relative to the weight of binder hydraulic, preferably from 1% to 20% by dry weight relative to the weight of hydraulic binder.
- the activator can also be present in an amount of 0 to 10% by dry weight relative to the weight of hydraulic binder.
- Hydraulic binder compositions comprising blast furnace slags and calcium sulphate, in particular in a proportion of 5 to 20% by weight, are also called over-sulphated cement (CSS) and are in particular as defined in the NF standard EN 15743+A1.
- SCS over-sulphated cement
- the hydraulic binder composition (CLH) comprises a hydraulic binder comprising at least one alumino-siliceous compound, for example blast-furnace slag, an activator, preferably calcium or sulfate activator, preferably sulfo -calcium, or an alkaline salt, and a maximum of 10% by weight of clinker, preferably from 0 to 10% by weight of clinker.
- a hydraulic binder comprising at least one alumino-siliceous compound, for example blast-furnace slag, an activator, preferably calcium or sulfate activator, preferably sulfo -calcium, or an alkaline salt, and a maximum of 10% by weight of clinker, preferably from 0 to 10% by weight of clinker.
- alumino-siliceous compound means fly ash (as defined in the Cement standard NF EN 197-1 (2012) paragraph 5.2.4), metakaolins, such as type A metakaolins compliant to standard NF P 18-513 (March 2012) or calcined clays, alumino-silicates in particular of the inorganic geopolymer type.
- composition of the invention may comprise a mixture of alumino-siliceous compounds.
- the hydraulic binder consists of an alumino-siliceous compound and an alkaline or sulphate activator.
- the hydraulic binder consists of a blast-furnace slag and an alkaline or sulphate activator.
- the hydraulic binder can also comprise mineral additions, preferably from 0 to 10% by weight relative to the weight of hydraulic binder.
- siliceous additions such as siliceous additions of Qz mineralogy in accordance with standard NF P 18-509 (September 2012)
- the proportions of additions and their nature may also comply with standard prEN 197-5, which defines CEM II/CM cements comprising between 50 and 64% clinker and 36 to 50% blast furnace slag and CEM VI cements comprising 35 to 49% clinker, 31 to 59% blast furnace slag furnace and from 6 to 20% of mineral additions as defined above.
- the alumino-siliceous compound is a blast furnace slag and the hydraulic binder can also comprise mineral additions.
- mineral additions refers to pozzolanic materials (as defined in standard Cement NF EN 197-1 (2012) paragraph 5.2.3), fly ash (as defined in standard Cement NF EN 197-1 ( 2012) paragraph 5.2.4), calcined shales (as defined in standard Cement NF EN 197-1 (2012) paragraph 5.2.5), limestones (as defined in standard Cement NF EN 197-1 (2012 ) paragraph 5.2.6) or silica fumes (as defined in standard Cement NF EN 197-1 (2012) paragraph 5.2.7) or mixtures thereof.
- the proportions of additions and their nature can also comply with standard prEN 197-5, which defines CEM ll/C-M cements comprising between 50 and 64% clinker and 36 to 50% blast furnace slag and cements CEM VI comprising 35 to 49% clinker, 31 to 59% blast furnace slag and 6 to 20% mineral additions as defined above.
- the hydraulic binder comprises blast-furnace slag, optionally a slag activator as defined above, optionally clinker and optionally mineral additions as described above.
- the hydraulic binder composition comprises from 75 to 99% by weight of alumino-siliceous compound, preferably from 80 to 95% by weight, for example from 80 to 90% by weight, relative to the total weight of hydraulic binder .
- the guanidine salt and/or zinc salt mixture and the polymer of the invention form a water-soluble solution and not a suspension. This advantageously allows ease of use in hydraulic binder compositions.
- the CLH composition comprises a guanidine salt.
- the CLH composition comprises a zinc salt.
- the CLH composition comprises a guanidine salt and a zinc salt.
- the amount of guanidine salt and/or zinc salt in the hydraulic binder composition (CLH) is between 0.1 and 5% by dry weight, preferably between 1.0 and 2.5% by dry weight, relative to the total weight of hydraulic binder.
- the guanidine salt can be selected from guanidine thiocyanate, guanidine acetate and guanidine nitrate.
- the zinc salt can be chosen from zinc chloride and zinc nitrate.
- the guanidine salt and thiocyanate salt mixture comprises between 30 and 50% by dry weight of guanidine salt and between 50 and 70% by dry weight of salt of zinc.
- the CLH composition comprises from 0.1 to 3.0% by dry weight of polymer (P), preferably from 0.3 to 1.0% by dry weight of polymer (P), relative to the total weight of hydraulic binder.
- total weight of hydraulic binder is understood to mean the weight of the alumino-siliceous compounds, preferably blast-furnace slag, of the activator, of the clinker if present, and of the additions minerals if present.
- Alk represents -CH 2 -CH 2 -, -CH 2 -CH 2 -CH 2 -, -CH 2 -CH 2 -CH 2 -, -CH 2 -CHMe-, -CHMe-CH 2 -, - at least 80% of the Alks of the group -(OAIk) q - represent -CH 2 -CH 2 -, or even all the Alks of the group -(OAIk) q - represent -CH 2 -CH 2 -,
- - q represents an integer from 5 to 200, in particular from 10 to 100, preferably from 25 to 75,
- R 5 represents -OH or -OMe, preferably R 5 represents -OH,
- - R 12 represents H, and/or
- - M represents H or a monovalent or bivalent cation
- m then representing 1 or 2 the monovalent cation preferably being chosen from an ammonium salt NH4 + , a primary, secondary, tertiary or quaternary ammonium cation and a cation of a alkali metal, such as a sodium, lithium or potassium ion, and the divalent cation preferably being a cation of an alkaline earth metal, such as a magnesium or calcium ion,
- - a is a number from 0.05 to 0.20, preferably a represents a number between 0.10 and 0.20,
- - b is a number from 0.80 to 0.95, preferably b represents a number between 0.80 and 0.90.
- the units of formula (I) of the polymer (P) have the following formula (I'): in which :
- R 2 independently represents a hydrogen or a methyl, preferably a methyl
- R' 4 represents a group of formula -CH 2 -(O-CH 2 -CH 2 ) q -R 5 in which:
- - R 5 represents -OH or -OMe, preferably -OH
- - a is a number from 0.05 to 0.25, such that (100 x a) represents the molar percentage of units of formula (I') within the polymer (P).
- the units of formula (II) of the polymer (P) have the following formula (II'): in which :
- R 12 represents a hydrogen or a methyl, preferably a hydrogen
- - b is a number from 0.75 to 0.95, such that (100 x b) represents the molar percentage of units of formula (II') within the polymer.
- the polymer (P) comprises units of formulas (I') and (II').
- - q represents an integer from 5 to 200, in particular from 10 to 100, preferably from 25 to 75,
- R 5 represents -OH or -OMe, preferably R 5 represents -OH,
- - a is a number from 0.05 to 0.20, preferably a represents a number between 0.10 and 0.20,
- - b is a number from 0.80 to 0.95, preferably b represents a number between 0.80 and 0.90,
- - M represents H or a monovalent or bivalent cation
- m then representing 1 or 2 the monovalent cation preferably being chosen from an ammonium salt NH4 + , a primary, secondary, tertiary or quaternary ammonium cation and a cation of a alkali metal, such as a sodium, lithium or potassium ion, and the divalent cation preferably being a cation of an alkaline earth metal, such as a magnesium or calcium ion.
- the polymer (P) may comprise one or more additional unit(s) in addition to those of formula (I) and (II).
- the polymer (P) is free of units of the following formula (III): wherein M represents H or a cation, such as sodium.
- M represents H or a cation, such as sodium.
- the polymer (P) is free of sulphonic acid and sulphonate groups.
- the polymer (P) consists of units of formulas (I) and (II). It does not include any additional unit in addition to those of formula (I) and (II). The sum of a and b is then 1 .
- the weight-average molar mass of the polymer is generally from 10,000 to 200,000 g/mol, in particular from 10,000 to 100,000 g/mol.
- the polymer (P) is obtained by free radical polymerization.
- the polymer (P) is therefore a comb polymer whose pendent groups are linked to the main carbon chain by ether groups.
- the hydraulic binder composition may also comprise polyalkoxylated polyphosphonate-based polymers, preferably in a proportion of between 0.1 and 3.0% by dry weight relative to the total weight of hydraulic binder optionally comprising mineral additions , preferably from 0.3 to 1.0% by dry weight, in particular described in patent EP0663892 (for example CHRYSOOFluid Optima 100).
- the polyalkoxylated phosphonate is preferably a polyalkoxylated phosphonate polymer of formula (V) or one of its salts, alone or as a mixture: in which :
- R5 is a hydrogen atom or a monovalent hydrocarbon group comprising from 1 to 18 carbon atoms and optionally one or more heteroatoms;
- the Ri 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 Ri optionally contain one or several 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 Rj are similar or different from each other and can be chosen from: - the A-PO3H2 group, A having the aforementioned meaning,
- m is a number greater than or equal to 0
- Q, N and the Rj's can together form one or more rings, this or these rings possibly also containing one or more other heteroatoms.
- the polyalkoxylated phosphonate consists of a water-soluble or water-dispersible organic compound comprising at least one amino-di-(alkylene-phosphonic) 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 not, comprising from 1 to 8 carbon atoms and optionally one or more heteroatoms;
- the Ri represent ethylene or propylene or a mixture of ethylene or propylene, preferably 60 to 100% of the Ri are ethylene groups;
- Q is a hydrocarbon group having 2 to 8 carbon atoms and, optionally, one or more heteroatoms;
- A is the methylene group; each of Rj represents the group CH2-PO3H2; m is an integer between 10 and 250; q is an integer equal to 1 or 2; y is an integer equal to 1 or 2.
- the polyalkoxylated phosphonate can be a polyalkoxylated phosphonate of formula (V) in which R5 is a methyl group, the Ri are ethylene and propylene groups, m being between 30 and 50, r+q is 1, Q is a ethylene group, A is a methylene group, y is 1 and Rj corresponds to the CH2-PO3H2 group.
- V polyalkoxylated phosphonate of formula (V) in which R5 is a methyl group, the Ri are ethylene and propylene groups, m being between 30 and 50, r+q is 1, Q is a ethylene group, A is a methylene group, y is 1 and Rj corresponds to the CH2-PO3H2 group.
- the hydraulic binder composition (CLH) according to the invention comprises from 0.1 to 5.0% by dry weight, preferably 0.5 to 2.0% by dry weight of guanidine salt and/or zinc salt and from 0.1 to 3.0% by dry weight of polymer (P), preferably from 0.3 to 1% by dry weight of polymer (P), relative to the total weight of hydraulic binder.
- the guanidine salt and thiocyanate salt mixture comprises between 30 and 50% by dry weight of guanidine salt and between 50 and 70% by dry weight of salt of zinc.
- the present application also relates to a hydraulic binder composition (CLH) comprising:
- a hydraulic binder comprising blast furnace slag and a maximum of 10% by weight of clinker, preferably from 0 to 10% by weight of clinker;
- R 1 and R 2 independently represent hydrogen or methyl
- R 3 represents a hydrogen or a group of formula -COO(M)i/ m
- R 4 represents a group of formula -(CH 2 ) P -(OAIk)qR 5 in which:
- each OAlk unit of the group -(OAIk) q - independently represents a linear or branched alkylene comprising from 2 to 4 carbon atoms
- R 5 represents -OH or a linear or branched alkoxyl comprising from 1 to 4 carbon atoms
- R 11 and R 12 independently represent hydrogen or methyl
- R 13 represents a hydrogen or a group of formula -COO(M)i/ m ,
- the present invention also relates to an adjuvant composition (CA) comprising:
- R 1 and R 2 independently represent hydrogen or methyl
- R 3 represents a hydrogen or a group of formula -COO(M)i/ m
- R 4 represents a group of formula -(CH 2 ) P -(OAIk)qR 5 in which:
- each OAlk unit of the group -(OAIk) q - independently represents a linear or branched alkylene comprising from 2 to 4 carbon atoms
- R 5 represents -OH or a linear or branched alkoxyl comprising from 1 to 4 carbon atoms
- R 11 and R 12 independently represent hydrogen or methyl
- R 13 represents a hydrogen or a group of formula -COO(M)i/ m ,
- - b is a number from 0.75 to 0.95, such that (100 x b) represents the molar percentage of units of formula (II) within the polymer.
- the adjuvant composition of the invention comprises by dry weight, 1 part of polymer, between 0 and 4 parts, preferably between 1 and 4 parts, preferably between 1.5 and 2.5 parts of guanidine salt and between 0 and 5 parts, preferably between 1 and 5 parts, preferably between 2.5 and 3.5 parts of zinc salt.
- the adjuvant composition of the invention comprises, by dry weight, 1 part of polymer, between 1 and 4 parts, preferably between 1.5 and 2.5 parts, of guanidine salt and between 1 and 5 parts , preferably between 2.5 and 3.5 parts of zinc salt.
- the adjuvant composition includes a guanidine salt.
- the adjuvant composition includes a zinc salt.
- the adjuvant composition comprises a guanidine salt and a zinc salt.
- the zinc and thiocyanate salts as well as the polymer (P) are as described above.
- the present application also relates to the use of the adjuvant composition for the preparation of a hydraulic binder composition as defined above or for the preparation of a hydraulic composition as defined below by adding the composition adjuvant to a hydraulic binder composition comprising a hydraulic binder as defined above or to a composition comprising a hydraulic binder as defined above, water and optionally at least one aggregate.
- the use according to the adjuvant composition according to the invention makes it possible to improve the maintenance of fluidity of the hydraulic compositions compared to the same hydraulic composition not comprising the adjuvant composition.
- the guanidine salt can be selected from guanidine thiocyanate, guanidine acetate and guanidine nitrate.
- the zinc salt can be chosen from zinc chloride and zinc nitrate.
- the guanidine salt and thiocyanate salt mixture comprises between 30 and 50% by dry weight of guanidine salt and between 50 and 70% by dry weight of salt of zinc.
- the amount of adjuvant composition according to the invention used is such that the amount of guanidine salt and/or zinc salt added is between 0.1 and 5% by dry weight, preferably between 1.0 and 2 .5% by dry weight, relative to the total weight of hydraulic binder.
- the amount of adjuvant composition according to the invention used is such that the amount of polymer (P) is between 0.1 and 3.0% by dry weight of polymer (P), preferably between 0.3 and 1, 0% by dry weight of polymer (P), relative to the total weight of hydraulic binder.
- the amount of adjuvant composition according to the invention used is such that the amount of guanidine salt and/or zinc salt added is between 0.1 and 5% by dry weight, preferably between 1.0 and 2 5% by dry weight, relative to the total weight of hydraulic binder and that the amount of polymer (P) added is between 0.1 and 3.0% by dry weight of polymer (P), preferably between 0. 3 and 1.0% by dry weight of polymer (P), relative to the total weight of hydraulic binder.
- the present invention also relates to the use of the hydraulic binder composition (CLH) defined above for the preparation of a hydraulic composition (CH).
- the invention also relates to a hydraulic composition (CH) comprising (or even consisting of) the hydraulic binder composition (CLH) defined above, water, optionally at least one aggregate.
- CH hydraulic composition
- CLH hydraulic binder composition
- the present invention relates to a hydraulic composition (CH) comprising:
- a hydraulic binder comprising at least one alumino-silky compound, preferably blast-furnace slag, and an alkaline or sulphate activator, and a maximum of 10% by weight of clinker, preferably between 0 and 10% by weight of clinker and optionally mineral additions as described above; some water ;
- R 1 and R 2 independently represent hydrogen or methyl
- R 3 represents a hydrogen or a group of formula -COO(M)i/ m - R 4 represents a group of formula -(CH 2 ) P -(OAIk)qR 5 in which:
- each OAlk unit of the group -(OAIk) q - independently represents a linear or branched alkylene comprising from 2 to 4 carbon atoms
- R 5 represents -OH or a linear or branched alkoxyl comprising from 1 to 4 carbon atoms
- R 11 and R 12 independently represent hydrogen or methyl
- R 13 represents a hydrogen or a group of formula -COO(M)i/ m ,
- - b is a number from 0.75 to 0.95, such that (100 x b) represents the molar percentage of units of formula (II) within the polymer (P).
- the hydraulic binder, the activator, the guanidine and zinc salts, the activator, the mineral additives, as well as the polymer (P) are as defined above.
- the present invention relates to a hydraulic composition (CH) comprising:
- a hydraulic binder comprising blast furnace slag and a maximum of 10% by weight of clinker, preferably between 0 and 10% by weight of clinker, from 0 to 10% by dry weight of activator as described below above and optionally mineral additions as described above; some water ;
- - R 1 and R 2 independently represent hydrogen or methyl
- - R 3 represents a hydrogen or a group of formula -COO(M)i/ m
- R 4 represents a group of formula -(CH 2 ) P -(OAIk)qR 5 in which:
- each OAlk unit of the group -(OAIk) q - independently represents a linear or branched alkylene comprising from 2 to 4 carbon atoms
- R 5 represents -OH or a linear or branched alkoxyl comprising from 1 to 4 carbon atoms
- R 11 and R 12 independently represent hydrogen or methyl
- R 13 represents a hydrogen or a group of formula -COO(M)i/ m ,
- - b is a number from 0.75 to 0.95, such that (100 x b) represents the molar percentage of units of formula (II) within the polymer (P).
- the hydraulic binder, the guanidine and zinc salts, the activator, the mineral additives, as well as the polymer (P) are as defined above.
- the hydraulic composition may also comprise a polymer based on polyalkoxylated polyphosphonate, preferably in a proportion of between 0.1 and 3.0% by dry weight relative to the weight of hydraulic binder, preferably from 0.3 to 1, 0% dry weight. This polymer is as described above.
- the hydraulic composition includes a guanidine salt.
- the hydraulic composition includes a zinc salt.
- the hydraulic composition comprises a guanidine salt and a zinc salt.
- the amount of guanidine salt and/or zinc salt in the hydraulic composition is between 0.1 and 5% by dry weight, preferably between 1.0 and 2.5% by dry weight, relative to the total weight of hydraulic binder.
- the guanidine salt can be chosen from guanidine thiocyanate, guanidine acetate and guanidine nitrate.
- the zinc salt can be chosen from zinc chloride and zinc nitrate.
- the guanidine salt and thiocyanate salt mixture comprises between 30 and 50% by dry weight of guanidine salt and between 50 and 70% by dry weight of salt of zinc.
- the hydraulic composition comprises from 0.1 to 3.0% by dry weight of polymer (P), preferably from 0.3 to 1.0% by dry weight of polymer (P), relative to the total weight of hydraulic binder.
- the hydraulic composition comprises between 0.1 and 5% by dry weight, preferably between 1.0 and 2.5% by dry weight, relative to the total weight of hydraulic binder and from 0.1 to 3.0 % by dry weight of polymer (P), preferably from 0.3 to 1.0% by dry weight of polymer (P), relative to the total weight of hydraulic binder.
- the hydraulic composition is preferably a concrete, mortar or screed composition.
- aggregates is meant a set of mineral grains with an average diameter of between 0 and 125 mm. Depending on their diameter, aggregates are classified into one of the following six families: fillers, sand, sand, gravel, gravel and ballast (standard XP P 18-545). The most commonly used aggregates are:
- - fillers which have a diameter of less than 2 mm and for which at least 85% of the aggregates have a diameter of less than 1.25 mm and at least 70% of the aggregates have a diameter of less than 0.063 mm, including sands between 0 and 4 mm (in the 13-242 standard, the diameter can go up to 6 mm),
- the sands are therefore included in the definition of aggregate according to the invention.
- the fillers can in particular be of limestone or dolomitic origin.
- Still other additives can be added to the hydraulic composition (CH) according to the invention, such as anti-air-entrainment additives, antifoam agents, a setting accelerator or retarder, a rheology modifier, another plasticizer (plasticizer or superplasticizer).
- anti-air-entrainment additives such as anti-air-entrainment additives, antifoam agents, a setting accelerator or retarder, a rheology modifier, another plasticizer (plasticizer or superplasticizer).
- the inventors have advantageously shown that the addition of guanidine salt and/or of zinc salt and of polymer (P) according to the invention allows the improvement of the maintenance of fluidity (also called maintenance of workability) in the time of the hydraulic composition, relative to the same composition not comprising any guanidine salt, zinc salt and polymer (P) according to the invention.
- the improvement in the maintenance of workability is preferably long-term, namely over a period greater than or equal to 45 minutes. , in particular greater than 60 minutes, or even greater than 90 minutes when the composition is used at 20°C.
- threshold stresses of the order of 1 to 10 Pa during the same time intervals that is to say over a period greater than or equal to 45 minutes, in particular greater than 60 minutes, or even greater than 90 minutes when the composition is used at 20°C.
- the present application also relates to a process for the preparation of a hydraulic composition according to the invention in which the guanidine and/or zinc salts as well as the polymer (P) and the optional polymer based on polyalkoxylated polyphosphonate, are added to the hydraulic binder.
- the present application also relates to a process for the preparation of a hydraulic composition according to the invention in which the guanidine and/or zinc salts are added to the hydraulic binder and the polymer (P) and the optional polymer based on polyalkoxylated polyphosphonate is added with the water, for example to the mixing water.
- the hydraulic compositions are prepared conventionally by mixing the aforementioned constituents.
- the polymer (P) according to the invention, and where appropriate the polymer based on polyalkoxylated polyphosphonate, can be added to the components of the hydraulic composition in dry form (generally in powder form) or in solution, preferably in aqueous solution.
- the water in said aqueous solution can be the mixing water or the pre-wetting water (part of the total water which is used to moisten the aggregates before mixing, making it possible to simulate the hygrometric state of the aggregates, which are often wet, in a concrete plant or on the construction site.
- the present invention also relates to the use of guanidine salts and/or zinc salts and a polymer comprising units of the following formulas (I) and (II): in which :
- R 1 and R 2 independently represent hydrogen or methyl
- R 3 represents a hydrogen or a group of formula -COO(M)i/ m
- R 4 represents a group of formula -(CH 2 ) P -(OAIk)qR 5 in which:
- each OAlk unit of the group -(OAIk) q - independently represents a linear or branched alkylene comprising from 2 to 4 carbon atoms
- R 5 represents -OH or a linear or branched alkoxyl comprising from 1 to 4 carbon atoms
- R 11 and R 12 independently represent hydrogen or methyl
- R 13 represents a hydrogen or a group of formula -COO(M)i/ m ,
- - b is a number from 0.75 to 0.95, such that (100 x b) represents the molar percentage of units of formula (II) within the polymer, for the preparation of a hydraulic composition
- a hydraulic composition comprising a hydraulic binder comprising blast furnace slag and a maximum of 10% by weight of clinker, preferably between 0 and 10.0% by weight of clinker, from 0 to 10% by weight of activator as described above and optionally mineral additions as described above, water, optionally at least one aggregate.
- the hydraulic binder, the guanidine and zinc salts, the activator, the mineral additives, as well as the polymer (P) are as defined above.
- the present invention also relates to the use of guanidine salts and/or zinc salts and a polymer comprising units of the following formulas (I) and (II): in which :
- R 1 and R 2 independently represent hydrogen or methyl
- R 3 represents a hydrogen or a group of formula -COO(M)i/ m
- R 4 represents a group of formula -(CH 2 ) P -(OAIk)qR 5 in which:
- each OAlk unit of the group -(OAIk) q - independently represents a linear or branched alkylene comprising from 2 to 4 carbon atoms
- R 5 represents -OH or a linear or branched alkoxyl comprising from 1 to 4 carbon atoms
- R 11 and R 12 independently represent hydrogen or methyl
- R 13 represents a hydrogen or a group of formula -COO(M)i/ m ,
- - b is a number from 0.75 to 0.95, such that (100 x b) represents the molar percentage of units of formula (II) within the polymer, to improve the fluidity, in particular the maintenance of workability, d a hydraulic composition comprising a hydraulic binder comprising at least one alumino-siliceous compound, preferably blast-furnace slag, an alkaline or sulphate activator, and a maximum of 10% by weight of clinker, preferably between 0 and 10, 0% by weight of clinker, and optionally mineral additions as described above, water, optionally at least one aggregate.
- a hydraulic composition comprising a hydraulic binder comprising at least one alumino-siliceous compound, preferably blast-furnace slag, an alkaline or sulphate activator, and a maximum of 10% by weight of clinker, preferably between 0 and 10, 0% by weight of clinker, and optionally mineral additions as described above, water, optionally at least
- the hydraulic binder, the guanidine and zinc salts, the activator, the mineral additives, as well as the polymer (P) are as defined above.
- guanidine salt only a guanidine salt is used.
- a zinc salt is used.
- a guanidine salt and a zinc salt are implemented.
- the amount of guanidine salt and/or zinc salt added to the hydraulic composition is between 0.1 and 5% by dry weight, preferably between 1.0 and 2.5% by dry weight, relative to the weight total hydraulic binder.
- the guanidine salt can be selected from guanidine thiocyanate, guanidine acetate and guanidine nitrate.
- the zinc salt can be chosen from zinc chloride and zinc nitrate.
- the guanidine salt and thiocyanate salt mixture comprises between 30 and 50% by dry weight of guanidine salt and between 50 and 70% by dry weight of salt of zinc.
- the amount of polymer (P) added to the hydraulic composition is between 0.1 and 3.0% by dry weight of polymer (P), preferably from 0.3 to 1.0% by dry weight of polymer (P), relative to the total weight of hydraulic binder.
- the hydraulic composition (CH) between 0.1 and 5% by dry weight, preferably between 1.0 and 2.5% by dry weight, relative to the total weight of hydraulic binder and 0 1 to 3.0% by dry weight of polymer (P), preferably from 0.3 to 1.0% by dry weight of polymer (P), relative to the total weight of hydraulic binder.
- the use according to the invention allows the maintenance of fluidity (also called maintenance of workability) to be improved over time of the hydraulic composition compared to the same hydraulic composition not comprising the salts of guanidine, zinc and the polymer of the invention.
- This improvement in the maintenance of fluidity is as described above.
- a polyalkoxylated polyphosphonate-based polymer as described above can also be added, in particular in the proportions mentioned above.
- the present invention also relates to the use of guanidine salts and/or zinc salts and a polymer comprising units of the following formulas (I) and (II): in which :
- R 1 and R 2 independently represent hydrogen or methyl
- R 3 represents a hydrogen or a group of formula -COO(M)i/ m
- R 4 represents a group of formula -(CH 2 ) P -(OAIk)qR 5 in which:
- each OAlk unit of the group -(OAIk) q - independently represents a linear or branched alkylene comprising from 2 to 4 carbon atoms
- R 5 represents -OH or a linear or branched alkoxyl comprising from 1 to 4 carbon atoms
- R 11 and R 12 independently represent hydrogen or methyl
- R 13 represents a hydrogen or a group of formula -COO(M)i/ m ,
- - b is a number from 0.75 to 0.95, such that (100 x b) represents the molar percentage of units of formula (II) within the polymer, for the preparation of a hydraulic composition
- a hydraulic composition comprising a hydraulic binder comprising blast furnace slag and a maximum of 10% by weight of clinker, preferably between 0 and 10.0% by weight of clinker, from 0 to 10% by weight of activator as described above and optionally mineral additions as described above, water, optionally at least one aggregate.
- the hydraulic binder, the guanidine and zinc salts, the activator, the mineral additives, as well as the polymer (P) are as defined above.
- the present invention also relates to the use of guanidine salts and/or zinc salts and a polymer comprising units of the following formulas (I) and (II): in which :
- R 1 and R 2 independently represent hydrogen or methyl
- R 3 represents a hydrogen or a group of formula -COO(M)i/ m
- R 4 represents a group of formula -(CH 2 ) P -(OAIk)qR 5 in which:
- each OAlk unit of the group -(OAIk) q - independently represents a linear or branched alkylene comprising from 2 to 4 carbon atoms
- R 5 represents -OH or a linear or branched alkoxyl comprising from 1 to 4 carbon atoms
- R 11 and R 12 independently represent hydrogen or methyl
- R 13 represents a hydrogen or a group of formula -COO(M)i/ m ,
- - b is a number from 0.75 to 0.95, such that (100 x b) represents the molar percentage of units of formula (II) within the polymer, to improve the fluidity, in particular the maintenance of workability, d a hydraulic composition comprising a hydraulic binder comprising blast furnace slag and a maximum of 10% by weight of clinker, preferably between 0 and 10.0% by weight of clinker, from 0 to 10% by weight of activator as described above and optionally mineral additions as described above, water, optionally at least one aggregate.
- the hydraulic binder, the guanidine and zinc salts, the activator, the mineral additives, as well as the polymer (P) are as defined above.
- a polyalkoxylated polyphosphonate-based polymer as described above can also be added, in particular in the proportions mentioned above.
- the present invention also relates to a process for improving the maintenance of fluidity (also called maintenance of workability) over time of a hydraulic composition comprising a hydraulic binder comprising at least one alumino-siliceous compound, preferably high-grade slag.
- furnaces an alkaline or sulphate activator, and a maximum of 10% by weight of clinker, preferably between 0 and 10% by weight of clinker, and optionally mineral additions as described above, water, optionally least one aggregate, comprising the addition of a guanidine salt and/or a zinc salt and of a polymer comprising units of formulas (I) and (II) as defined above.
- the present invention also relates to a process for improving the maintenance of fluidity (also called maintenance of workability) over time of a hydraulic composition
- a hydraulic composition comprising a hydraulic binder comprising blast-furnace slag and a maximum of 10% by weight of clinker, preferably between 0 and 10% by weight of clinker, from 0 to 10% by weight of activator as described above and optionally mineral additions as described above, water, optionally at least an aggregate, comprising the addition of a guanidine salt and/or a zinc salt and of a polymer comprising units of formulas (I) and (II) as defined above.
- the hydraulic binder is as defined above.
- guanidine salt In a first embodiment, only a guanidine salt is used.
- guanidine salt and a thiocyanate salt are used.
- the method according to the invention comprises the addition of 0.1 to 5% by dry weight, preferably from 1.0% to 2.5% by dry weight, relative to the total weight of hydraulic binder, of zinc salt and/or guanidine salt.
- the process according to the invention comprises the addition of 0.1% to 3.0% by dry weight of polymer (P), preferably from 0.3 to 1.0% by dry weight of polymer (P ), relative to the weight of hydraulic binder.
- the guanidine salt and thiocyanate salt mixture comprises between 30 and 50% by dry weight of guanidine salt and between 50 and 70% by dry weight of salt of zinc.
- the method according to the invention comprises the addition of from 0.1 to 5% by dry weight, preferably from 1.0% to 2.5% by dry weight, relative to the total weight of hydraulic binder, of zinc salt and/or guanidine salt and the addition of 0.1% to 3.0% by dry weight of polymer (P), preferably from 0.3 to 1.0% by dry weight of polymer (P), relative to the weight of hydraulic binder.
- the zinc and guanidine salts, and the polymer (P) are as described above.
- the activator and mineral additions are as described above.
- the method of the invention may further comprise the addition of polyalkoxylated polyphosphonate-based polymers, preferably in a proportion of between 0.1 and 3.0% by weight relative to the weight of hydraulic binder, preferably 0 .3 to 1.0% by weight. These polymers are as described above.
- Guanidine and zinc salts can be added to the hydraulic binder and the polymer and optional polyalkoxylated polyphosphonate polymer is added in water, called mixing water.
- the polymer (P) according to the invention, and where appropriate the polymer based on polyalkoxylated polyphosphonate, can be added to the components of the hydraulic composition in dry form (generally in powder form) or in solution, preferably in aqueous solution.
- the water in said aqueous solution can be the mixing water or the pre-wetting water (part of the total water which is used to moisten the aggregates before mixing, making it possible to simulate the hygrometric state of the aggregates, which are often wet, in a concrete plant or on the construction site.
- guanidine and zinc salts as well as the polyalkoxylated polyphosphonate polymer (P) and optional polymer can be added to the hydraulic binder.
- Example 1 Study of the performance of an adjuvant composition according to the invention with guanidine salt
- the mortar composition is as follows
- the stopwatch is started and the hydraulic composition of blast furnace slag and sand are introduced into the bowl in 30 seconds.
- the speed is increased to 96 rpm and the mixture is mixed for one minute.
- the mixer is stopped for 30 seconds, the mortar composition possibly projected on the walls is scraped towards the center with a spatula.
- the mortar composition obtained is kneaded for one minute at 96 rpm.
- the mortar composition obtained which is in the form of a paste, is poured into the cylindrical measurement cell of a Kinexus Pro rheometer (Netzsch) fitted with a fin-type measurement geometry.
- the mortar composition is subjected to pre-shearing for one minute at a strain rate of 200 s ⁇ 1 .
- the mortar composition is then subjected to a series of decreasing strain rate stages, in logarithmic jumps from 200 to 0.01 s -1 and the rheometer records the stress to be applied at each point.
- This makes it possible to construct a flow curve linking the stress applied to obtain each strain rate value.
- These flow curves present a minimum stress which is interpreted as a threshold stress, ie a minimum stress to be applied to cause the flow. This value varies inversely to the fluidity, so we try to reduce it as much as possible.
- a flow curve measurement is then carried out every 30 min up to 120 min after the start of mixing to check the change in fluidity over time.
- Example 2 Study of the performance of an adjuvant composition according to the invention with zinc salt
- Example 2 The performance evaluation is carried out in the same way as in Example 1 with the same mortar composition.
- the proportions of salts are given in dry weight relative to the total weight of hydraulic binder.
- Example 3 Study of the performance of an adjuvant composition according to the invention with zinc salt and guanidine salt
- the performance evaluation is carried out in the same way as in Example 1 with the same composition of mortar.
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- Structural Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Curing Cements, Concrete, And Artificial Stone (AREA)
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Abstract
Description
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Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR2100670A FR3119166B1 (fr) | 2021-01-25 | 2021-01-25 | Composition de liant hydraulique de laitiers de hauts fourneaux |
PCT/EP2022/051622 WO2022157386A1 (fr) | 2021-01-25 | 2022-01-25 | Composition de liant hydraulique de laitiers de hauts fourneaux |
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EP4281426A1 true EP4281426A1 (fr) | 2023-11-29 |
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EP22702437.9A Pending EP4281426A1 (fr) | 2021-01-25 | 2022-01-25 | Composition de liant hydraulique de laitiers de hauts fourneaux |
Country Status (9)
Country | Link |
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US (1) | US20240092695A1 (fr) |
EP (1) | EP4281426A1 (fr) |
CN (1) | CN116867751A (fr) |
AU (1) | AU2022209984A1 (fr) |
CA (1) | CA3206266A1 (fr) |
FR (1) | FR3119166B1 (fr) |
MX (1) | MX2023008666A (fr) |
WO (1) | WO2022157386A1 (fr) |
ZA (1) | ZA202307374B (fr) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2696736B1 (fr) | 1992-10-12 | 1994-12-30 | Chryso | Fluidifiants pour suspensions aqueuses de particules minérales et pâtes de liant hydraulique. |
FR2815627B1 (fr) * | 2000-10-25 | 2003-09-05 | Coatex Sas | Procede pour ameliorer la resistance mecanique notamment "aux jeunes ages" des matrices cimentaires, matrices cimentaires ainsi obtenues et leurs utilisations |
EP2687498A1 (fr) * | 2012-07-20 | 2014-01-22 | Construction Research & Technology GmbH | Additif pour masses se détachant hydrauliquement |
MX2020004015A (es) * | 2017-10-20 | 2020-07-22 | Construction Research & Technology Gmbh | Composicion de control de fraguado para sistemas cementosos. |
US11021399B2 (en) * | 2019-01-23 | 2021-06-01 | United States Gypsum Company | Self-consolidating geopolymer compositions and methods for making same |
-
2021
- 2021-01-25 FR FR2100670A patent/FR3119166B1/fr active Active
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2022
- 2022-01-25 WO PCT/EP2022/051622 patent/WO2022157386A1/fr active Application Filing
- 2022-01-25 EP EP22702437.9A patent/EP4281426A1/fr active Pending
- 2022-01-25 CN CN202280011676.3A patent/CN116867751A/zh active Pending
- 2022-01-25 AU AU2022209984A patent/AU2022209984A1/en active Pending
- 2022-01-25 MX MX2023008666A patent/MX2023008666A/es unknown
- 2022-01-25 CA CA3206266A patent/CA3206266A1/fr active Pending
- 2022-01-25 US US18/262,665 patent/US20240092695A1/en active Pending
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Publication number | Publication date |
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ZA202307374B (en) | 2024-02-28 |
FR3119166A1 (fr) | 2022-07-29 |
FR3119166B1 (fr) | 2024-05-17 |
CA3206266A1 (fr) | 2022-07-28 |
MX2023008666A (es) | 2023-10-04 |
US20240092695A1 (en) | 2024-03-21 |
AU2022209984A1 (en) | 2023-08-10 |
CN116867751A (zh) | 2023-10-10 |
WO2022157386A1 (fr) | 2022-07-28 |
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