CN101439943B - Composition for inhibiting concrete alkali aggregate reaction and preparation thereof - Google Patents
Composition for inhibiting concrete alkali aggregate reaction and preparation thereof Download PDFInfo
- Publication number
- CN101439943B CN101439943B CN200710187838A CN200710187838A CN101439943B CN 101439943 B CN101439943 B CN 101439943B CN 200710187838 A CN200710187838 A CN 200710187838A CN 200710187838 A CN200710187838 A CN 200710187838A CN 101439943 B CN101439943 B CN 101439943B
- Authority
- CN
- China
- Prior art keywords
- concrete
- alkali
- compsn
- aggregate reaction
- salt
- 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.)
- Active
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 114
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 49
- 239000000203 mixture Substances 0.000 title claims abstract description 34
- 239000003513 alkali Substances 0.000 title claims description 79
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 230000002401 inhibitory effect Effects 0.000 title abstract 3
- -1 alkali metal salt Chemical class 0.000 claims abstract description 35
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 16
- 150000004645 aluminates Chemical class 0.000 claims abstract description 14
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 18
- 150000003839 salts Chemical class 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 239000013543 active substance Substances 0.000 claims description 13
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 13
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 12
- 150000008130 triterpenoid saponins Chemical class 0.000 claims description 11
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims description 9
- 239000003638 chemical reducing agent Substances 0.000 claims description 9
- 229910003002 lithium salt Inorganic materials 0.000 claims description 7
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 6
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 229960004418 trolamine Drugs 0.000 claims description 6
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 5
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 claims description 4
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims description 4
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 claims description 4
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 claims description 4
- INHCSSUBVCNVSK-UHFFFAOYSA-L lithium sulfate Chemical compound [Li+].[Li+].[O-]S([O-])(=O)=O INHCSSUBVCNVSK-UHFFFAOYSA-L 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 238000010792 warming Methods 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 3
- NEEHYRZPVYRGPP-IYEMJOQQSA-L calcium gluconate Chemical compound [Ca+2].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O NEEHYRZPVYRGPP-IYEMJOQQSA-L 0.000 claims description 3
- WPJGWJITSIEFRP-UHFFFAOYSA-N 1,3,5-triazine-2,4,6-triamine;hydrate Chemical compound O.NC1=NC(N)=NC(N)=N1 WPJGWJITSIEFRP-UHFFFAOYSA-N 0.000 claims description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 2
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 2
- 229930006000 Sucrose Natural products 0.000 claims description 2
- 150000004996 alkyl benzenes Chemical class 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 2
- YNQRWVCLAIUHHI-UHFFFAOYSA-L dilithium;oxalate Chemical compound [Li+].[Li+].[O-]C(=O)C([O-])=O YNQRWVCLAIUHHI-UHFFFAOYSA-L 0.000 claims description 2
- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical compound O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 0.000 claims description 2
- 239000005720 sucrose Substances 0.000 claims description 2
- IIACRCGMVDHOTQ-UHFFFAOYSA-M sulfamate Chemical compound NS([O-])(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-M 0.000 claims description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 2
- TWQULNDIKKJZPH-UHFFFAOYSA-K trilithium;phosphate Chemical compound [Li+].[Li+].[Li+].[O-]P([O-])([O-])=O TWQULNDIKKJZPH-UHFFFAOYSA-K 0.000 claims description 2
- 229910001413 alkali metal ion Inorganic materials 0.000 abstract description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 2
- 150000001553 barium compounds Chemical class 0.000 abstract 1
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical class [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 150000002642 lithium compounds Chemical class 0.000 abstract 1
- 239000000463 material Substances 0.000 description 28
- 235000002639 sodium chloride Nutrition 0.000 description 19
- 239000004568 cement Substances 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 229920005646 polycarboxylate Polymers 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- PQVSTLUFSYVLTO-UHFFFAOYSA-N ethyl n-ethoxycarbonylcarbamate Chemical compound CCOC(=O)NC(=O)OCC PQVSTLUFSYVLTO-UHFFFAOYSA-N 0.000 description 7
- GLXDVVHUTZTUQK-UHFFFAOYSA-M lithium hydroxide monohydrate Substances [Li+].O.[OH-] GLXDVVHUTZTUQK-UHFFFAOYSA-M 0.000 description 7
- 229940040692 lithium hydroxide monohydrate Drugs 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 6
- 238000005336 cracking Methods 0.000 description 6
- 239000000499 gel Substances 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 5
- 239000008367 deionised water Substances 0.000 description 5
- 229910021641 deionized water Inorganic materials 0.000 description 5
- 230000036571 hydration Effects 0.000 description 5
- 238000006703 hydration reaction Methods 0.000 description 5
- 230000005764 inhibitory process Effects 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 208000037656 Respiratory Sounds Diseases 0.000 description 3
- 239000002956 ash Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 229910001415 sodium ion Inorganic materials 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 2
- 230000002528 anti-freeze Effects 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000000536 complexating effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 159000000002 lithium salts Chemical class 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229960001866 silicon dioxide Drugs 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000272525 Anas platyrhynchos Species 0.000 description 1
- 108010053481 Antifreeze Proteins Proteins 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 241000923606 Schistes Species 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 241000356114 Trachytes Species 0.000 description 1
- 230000009102 absorption Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000001164 aluminium sulphate Substances 0.000 description 1
- 235000011128 aluminium sulphate Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000005588 carbonic acid salt group Chemical group 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000004574 high-performance concrete Substances 0.000 description 1
- 230000000887 hydrating effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000002198 insoluble material Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 description 1
- 229910052912 lithium silicate Inorganic materials 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000005332 obsidian Substances 0.000 description 1
- 239000011022 opal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000009938 salting Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000011376 self-consolidating concrete Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical class O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000003245 working effect Effects 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
- 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
- C04B2103/0004—Compounds chosen for the nature of their cations
- C04B2103/0006—Alkali metal or inorganic ammonium compounds
- C04B2103/0008—Li
-
- 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
- C04B2103/0004—Compounds chosen for the nature of their cations
- C04B2103/001—Alkaline earth metal or Mg-compounds
- C04B2103/0011—Ba
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2023—Resistance against alkali-aggregate reaction
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to the technical field of concrete engineering, and in particular relates to a composition for inhibiting concrete alkali-aggregate reaction and a preparation method thereof. The composition for inhibiting the concrete alkali-aggregate reaction comprises the following compositions: 10 to 50 percent of plasticizing agent, 10 to 70 percent of aluminate and 10 to 30 percent of alkali metal salt or alkaline-earth metal salt, wherein the alkali metal salt or the alkaline-earth metal salt is selected from at least one group of lithium compounds, barium compounds or calcium-magnesium compounds, and the total content of various compositions is 100 percent. The composition can cover or coat active elements of aggregate, prevent or isolate contact reaction between alkali metalions such as K+ and Na+ and the active elements of the aggregate, prevent generation of soluble swelled gel and generation of insoluble compounds, and further eliminate alkali-aggregate reaction and improve the durability of concrete.
Description
Technical field
The invention belongs to the concrete works technical field, be specifically related to a kind of composition and method of making the same that is used to suppress concrete alkali aggregate reaction.
Background technology
Alkali is meant that concrete such as cement, admixture constitute the alkali in thing and the environment and the middle basic active mineral that gather materials slowly take place and causes the expansion reaction of concrete cracking destructive under wet environment.Alkali comprises alkali-silica reaction and alkali-carbonate reaction.In the aggregate (that is, gathering materials) if contain soft silica isoreactivity aggregate, when having moisture to exist in the concrete, its can with the alkali (K in the cement
2O and Na
2O) work, produce alkali, concrete is destroyed.
Alkali (mainly referring to alkali-silica reaction) is one of major reason that causes concrete durability decline.In decades recently, the problem that the concrete durability that is caused by alkali descends has worldwide caused tremendous loss.Simultaneously, the cracking that causes by alkali (as, crackle, crack etc.) destroy and be difficult to stop, and repair very difficulty, expense is also very big.Therefore, in the concrete industry technical field, the prevention of concrete alkali aggregate reaction has become the emphasis of various countries' research.
At present, prevent that the major measure of alkali from having: nonactive gathering materials used in (1), and concrete alkali content is controlled in (2), (3) controlling moisture, and blended material (silicon ash, flyash, slag) or chemical admixture are used in (4).Wherein, (1), (4) two be meant in concrete use, in batching, add nonactively gather materials, blended material or chemical admixture.
Using nonactive gathering materials is the measure that prevents that alkali is the most safe and reliable.Yet; The distribution of (particularly siliceous activity is gathered materials) is extensive because activity is gathered materials; And the resource of gathering materials not is the renewable resources of " inexhaustible ", so along with the influence of factors such as the continuous consumption of the resource of gathering materials, construction costs, but the choice that gathers materials often is restricted.In addition, at present evaluation alkali aggregate reactivity (the potential basic active that gathers materials slowly particularly expands) is not still had cocksure method, correctly judge yet not a duck soup of alkali aggregate reactivity.
When being lower than a definite value, concrete alkali content (it has been generally acknowledged that 3kg/m
3), the K in the concrete hole solution
+, Na
+And OH
-Concentration can be lower than certain threshold value, and alkali is difficult to take place. or level of response is lighter, and deficiency is so that concrete cracking and being damaged.The serious country of alkali takes place in early days, is lower than 0.60% cement reducing the alkali content in the concrete like the alkali content that once was widely used such as the U.S., Britain, Japan, nz, and has alleviated the problem of alkali to a certain extent.But, because alkali can the enrichment with the migration of moisture in the concrete, always this measure is ineffective.And, for OH in the concrete hole solution
-The affirmation of concentration threshold value is disunity still also.High reactivity gathers materials in higher alkali content greater than 2kg/m
3The time can cause remarkable expansion.On the other hand, with high grade cement consumption of raw materials and save energy, reduce cost and protect the pressure of environment to increase, worldwide cement alkali content is all in rising trend.In recent years, owing to pursue concrete HS, the use of the increase of cement consumption and multiple morning of strong admixture (major part contains alkali) limits concrete alkali content more and more difficult in the unit concrete.To there being the concrete works of outside alkali source, like seawater engineering concrete, be exposed to the saltings and use the concrete works of deicing salt, also alkali can take place even alkali content is low.Under these conditions, the alkali content meaning of restriction concrete itself is also little.
There are some researches show, reduce relative humidity and can reduce the concrete expansion that alkali causes.But the residing actual humidity condition of concrete works is not easy to artificial control, and factors such as drying and watering cycle, energising can also cause in the concrete the alkali migration and in Local enrichment, thereby the aggravation alkali.
Though the admixture blended material is the important channel that suppresses alkali in concrete; But along with further investigation; Also there are many problems in this measure; Relatively outstanding is: blended material needs quite high rate of displacement and could effectively suppress alkali under (1) some condition, and this often gives other performance deleterious impact of concrete; (2) it is still doubtful that blended material suppresses the long-term effectiveness that long-term effectiveness, the especially concrete of alkali be in when containing the alkali environment, has been proved to be limited under some occasion.Also have some problems even be considered to suppress the best silicon ash of alkali effect, particularly because of the resource scarcity of silicon ash, excessive rate of displacement also is unpractical in engineering.
There are some researches show; Use chemical admixture (mainly being lithium salts) can suppress the expansion that alkali causes, use this chemical admixture needn't change the Concrete Construction condition, operation is simple and feasible; Addition content is few, and in the widely used contemporary engineering of admixture, is prone to accepted.But, higher lithium salts price limit the universal use of this method.
Therefore; In the concrete works technical field,, improve concrete construction quality in order to improve concrete weather resistance; And prolong its work-ing life and reduce maintenance cost, press for a kind of low price and can suppress the admixture of concrete alkali aggregate reaction.
Summary of the invention
An object of the present invention is to provide a kind of environmental protection, the high performance compsn that suppresses concrete alkali aggregate reaction that can be used in.
Another object of the present invention provides a kind of method for compositions that is used to suppress concrete alkali aggregate reaction of the present invention for preparing.
To achieve these goals, the invention provides a kind of compsn that is used to suppress concrete alkali aggregate reaction, calculate according to weight percent, said composition comprises:
10～50% fluidizer;
10～70% aluminate; With
10～30% an alkali metal salt or alkaline earth salt, this an alkali metal salt or alkaline earth salt be selected from the group that comprises lithium salt compound, barium salt compound and calcium magnesium salt compound one of at least,
And each components contents summation is 100%.
In technique scheme, said fluidizer be selected from the group that comprises poly carboxylic acid series water reducer, naphthalene water reducer, melamine water reducing agent and sulfamate water reducer one of at least, be preferably poly carboxylic acid series water reducer.This fluidizer is the important source material that is used to suppress the compsn of concrete alkali aggregate reaction of the present invention, its have high water reducing rate, plasticising, strong dispersed, impervious, strengthen, reduce, premium properties closely knit, against corrosion.
Said aluminate is that alumina content is 55～65% calcium aluminate, Tai-Ace S 150 or its compsn, is preferably calcium aluminate.This aluminate is the important source material that is used to suppress the compsn of concrete alkali aggregate reaction of the present invention, and it has microdilatancy, cracking resistance, compensate for shrinkage, impervious waterproof, densification, function against corrosion.
Preferably; Said an alkali metal salt or alkaline earth salt are preferably lithium salt compound, and this lithium salt compound is at least a compound that is selected from the group that comprises Lithium Hydroxide MonoHydrate, Quilonum Retard, lithium chloride, lithium fluoride, Trilithium phosphate, Lithium Sulphate, lithium nitrate and lithium oxalate.This an alkali metal salt or alkaline earth salt are the important source material that is used to suppress the compsn of concrete alkali aggregate reaction of the present invention.Has higher electric density, stronger ionic bond power owing to the lithium ion radius is especially little; Therefore cause lithium ion replacement potassium, sodium ion preferentially to form the indissoluble salt of the lithium silicate reaction product (L-S-H) of non-expansibility; Cover and also to be wrapped in the active element surface that gathers materials, and stop going deep into of active element reaction, also stoped the erosion of potassium, sodium ion aggregate; The electric density that alkalimetal ion is bigger is inhaled with the alkali silicon gel static of oppositely charged mutually; And then the formation associated structure, a distance shortens gel assembles, thereby loses suction swelling ability.Simultaneously, lithium alkalimetal ion radius is less than K
+, Na
+, electric density is greater than K
+, Na
+Ion is so can replace or replace K
+, Na
+, improved the compactness and the stability of gel structure, reduced suction swelling ability, thereby the protection aggregate is avoided corroding.In addition, the entering of other composition provides H
+, reduced the basicity of hole solution, suppressed the alkali expansion of gathering materials.
Preferably, the compsn that is used to suppress concrete alkali aggregate reaction provided by the invention further comprises 0.4～0.8% tensio-active agent.
Said tensio-active agent be selected from the group that comprises rosin, colophonium pyrolytic polymer, alkylphenol and ethylene oxide condensate, sulfonated alkylbenzene and triterpenoid saponin one of at least, be preferably triterpenoid saponin.This tensio-active agent is the auxiliary material that is used to suppress the compsn of concrete alkali aggregate reaction of the present invention; It act as: form more airtight space to gather reaction product; Help the release of the alkali-silica gel swelling pressure; Thereby reduce the destruction of expanding and causing, can improve concrete freeze proof, impervious, anti-carbonization and corrosion resistance simultaneously.
Further preferably, the compsn that is used to suppress concrete alkali aggregate reaction provided by the invention further comprises 1.5～2.5% poly-hydroxy glucide.
Said poly-hydroxy glucide be selected from the group that comprises Sunmorl N 60S, calglucon, sucrose and sugared calcium one of at least, be preferably calglucon.This poly-hydroxy glucide has restraining effect to absorption, complexing, deposition, the crystallization nucleation at concrete hydrating initial stage; Can delay cement initial stage aquation; Regulate setting time; The control concrete slump through the time lose, suppress the hydration heat peak value, thereby prevent that crackle or crack from appearring in the concrete initial stage.
In technique scheme, calculate according to weight percent, the said compsn that is used to suppress concrete alkali aggregate reaction is a powder, and comprises:
10～20%, preferred 15% fluidizer;
40～70%, preferred 50% aluminate;
10～20%, preferred 10% an alkali metal salt or alkaline earth salt;
0.4～0.8%, preferred 0.5% tensio-active agent;
1.5 preferred 2.5% poly-hydroxy glucide～2.5%; With
10～20%, preferred 20% vitriol,
And each components contents summation is 100%.
Said vitriol is calcium sulfate, permanent white or its combination, and its particle diameter is 50～100 μ m, and this vitriol is preferably permanent white.This vitriol is the auxiliary material of the powder composition of inhibition concrete alkali aggregate reaction of the present invention, and it act as: at concrete cement sulfate ion (SO was provided between hydration period
4 2-), participate in hydrated cementitious and generate more calcium sulphoaluminate (gel) crystallized product, make concrete compactness higher, also reduced the pH value in the concrete hole solution simultaneously.
In technique scheme, calculate according to weight percent, the said compsn that is used to suppress concrete alkali aggregate reaction is a liquid, and comprises:
30～50%, preferred 45% fluidizer;
10～20%, preferred 15% aluminate;
20～30%, preferred 25% an alkali metal salt or alkaline earth salt;
0.4 preferred 0.5% tensio-active agent～0.8%;
1.5 preferred 2.0% poly-hydroxy glucide～2.5%;
1.0 preferred 2.0% alcohol amine compound～2.0%; With
10～40%, preferred 15.5% pure water,
And each components contents summation is 100%.
Said alcohol amine compound is trolamine, diethylolamine or its combination.This alcohol amine compound is the liquid auxiliary material that is used to suppress the compsn of concrete alkali aggregate reaction of the present invention; It act as: complexing action, in cement hydration process, play katalysis, and have enhancing, fine and close function; Can significantly improve concrete density, impermeability; Reduce the infiltration of outer water or attack solution significantly, minimizing water contacts with the alkali aggregate, prevents to form the colloidal sol dilator.
Said pure water is a deionized water, and it is the solvent and the carrier of the liquid compsn of inhibition concrete alkali aggregate reaction of the present invention.
Another technical scheme of the present invention provides a kind of method for preparing the powder composition of inhibition concrete alkali aggregate reaction of the present invention; This method comprises: under the situation of stirrer running; Successively or disposable adding aluminate, tensio-active agent, poly-hydroxy glucide, an alkali metal salt or alkaline earth salt, fluidizer and vitriol, and then stir and it was mixed in 10～20 minutes.
Another technical scheme of the present invention provides a kind of method for preparing the liquid compsn of inhibition concrete alkali aggregate reaction of the present invention; This method comprises: in reaction kettle, add pure water; Start stirrer when being warming up to 30～65 ℃, add aluminate then, it is fully dissolved after; Add an alkali metal salt or alkaline earth salt, poly-hydroxy glucide, alcohol amine compound and fluidizer when being cooled to 28～38 ℃ again; After it is fully dissolved, add tensio-active agent again, stir and it was mixed in 5～10 minutes.
The compsn that is used for suppressing concrete alkali aggregate reaction provided by the invention mainly uses when aggregate contains following composition: active silica composition (noncrystal silicon-dioxide), like pearl opal vitreous silica, perlite, pitchstone, obsidian, calcedony tridymite, anti-quartz, trachyte, andesite, Liu Wenyan, tuff etc.; The active carbonic acid salt component is like clay matter particulate dolomite limestone etc.; The active silicic acid salt component, like schist, thousand shale, stone rock salt, quartzy petroclastic rock, sandstone, grouan, numb shape grouan, quartzy argillite, Hd.sd. etc., contained Na in above-mentioned activeconstituents and the concrete
2O, K
2O causes concrete expansion through secular physics chemical action, makes concrete produce expansion stress, thereby causes concrete surface to form random cracking, finally loses intensity, until damage.In such reactive aggregate concrete; Use powder composition or the liquid compsn that is used to suppress concrete alkali aggregate reaction of the present invention with the ratio of 6～8kg/100kg cement or 2～3kg/100kg cement respectively; Can prevent and suppress alkali, significantly improve durability of concrete.The compsn that is used to suppress concrete alkali aggregate reaction of the present invention be except that can being used for the normal concrete, also is applicable to high performance concrete, pump concrete, strong concrete, mass concrete, frost-resistant concrete, flows or special concrete engineerings such as self-compacting concrete, impact-resisting wear-resisting concrete, slding form operation concrete, anti-corrosion concrete against corrosion, air tight concrete greatly.
The compsn that is used to suppress concrete alkali aggregate reaction provided by the invention has the following advantages:
(1) compsn of the present invention can make the active element that gathers materials be capped or wrap up, and can stop or isolated K
+, Na
+Deng the alkalimetal ion and the active element contact reacts of gathering materials, prevent the generation of solubility expansion gel, and make it to produce insoluble compound, thereby eliminated alkali;
(2) compsn of the present invention has high diminishing, high impervious waterproof, the contraction of antifreeze, the high cracking resistance inhibition of high anti-freezing concrete, mobile greatly self-compacting, early strong enhanced performance; And has the good endurance quality of water retention property; Can significantly suppress and the parcel active element that gathers materials, significantly improve the concrete construction performance;
(3) when compsn of the present invention is added fresh concrete; Under the prerequisite that guarantees concrete works fine property; Water consumption can reduce 25～35%, and free water will reduce significantly like this, and concrete capillary-size pore rate and aperture also will significantly reduce and dwindle; The mass crystallization property insoluble material that is generated by compsn of the present invention has simultaneously stopped up the capillary-size pore passage; Thereby make extraneous water molecules can not or be difficult to through, even alkalimetal ion and active element meet, under anhydrous situation, can not react generation solubility expansion gel;
(4) use the concrete shrinking percentage of compsn of the present invention significantly to reduce; Even mass concrete; Said composition also can suppress hydration heat of concrete, reduces to disperse the highest thermal peak of initial stage hydrated cementitious, prevents plastic shrinkage crackle or crack because of the too high generation of hydration heat;
(5) compsn of the present invention has the microdilatancy function, and during the concrete hardening of using said composition, the microdilatancy crystal of generation is expanded to 0.2～0.7Mpa from stress, contraction that can compensating concrete;
(6) the high-performance bleed composition of compsn of the present invention can significantly strengthen concrete freeze proof anti-freeze thawing performance, and 300 freeze-thaw cycle loss of strength rates are less than 5.0%;
(7) the low alkali of compsn of the present invention does not have chlorine, environmentally-friendly sanitary, safety, is applicable to high-performance, environmental protection concrete works, and to concrete reinforcement non-corroding property, cohesiveness, the bond stress of reinforcing bar can significantly improve simultaneously.
Use compsn of the present invention can make the weather resistance of normal concrete improve 10～20 times, can make full use of waste resource, reduce disposable production cost 10～20%, maintenance cost 70～80%.
Embodiment
Hereinafter, the present invention is carried out detailed description according to preferred embodiment, however following embodiment only be used for understanding of the present invention, and the present invention is not limited to this or is limited.
Embodiment 1 (preparation 1000kg powder composition 1)
At volume is to add 495kg calcium aluminate (300 order) powder in the stirrer of 1500L; Start stirrer; Add calcium sulfate (500 order) 100kg, Lithium Hydroxide MonoHydrate 200kg, polycarboxylate successively (available from Sichuan superstar's technological applications institute; Product type JX-GBNHG) 200kg, triterpenoid saponin 5kg add continued and stirred 5～10 minutes, promptly make powder composition 1 of the present invention.Calculate according to weight percent, powder composition 1 comprises: 20% polycarboxylate; 49.5% calcium aluminate; 20% Lithium Hydroxide MonoHydrate; 0.05% triterpenoid saponin; With 10% calcium sulfate.
Embodiment 2 (preparation 500L liquid compsn 1)
In the reaction kettle of 600～1000L, add the 112.5kg deionized water, be warming up to 30 ℃～38 ℃, start stirrer and add Tai-Ace S 150 50kg; It is fully dissolved, and (solid content is 40%, available from Sichuan superstar's technological applications institute to add the polycarboxylate emulsion again; Product type JX-GBNHY) 200kg, Quilonum Retard 125kg add the back and stirred 5～10 minutes, add trolamine 10kg again; Add colophonium pyrolytic polymer 2.5kg at last, restir 3～8 minutes promptly makes liquid compsn 1 of the present invention.Calculate according to weight percent, liquid compsn 1 comprises: 40% polycarboxylate emulsion; 10% Tai-Ace S 150; 25% Quilonum Retard; 0.5% colophonium pyrolytic polymer; 2% trolamine; With 22.5% deionized water.
Embodiment 3 (powder composition 2 that preparation 1000kg has slow setting property)
At volume is to add calcium aluminate powder 467kg in the stirrer of 1500L; Start stirrer; Add calcium sulfate 200kg, poly carboxylic acid successively (available from Sichuan superstar's technological applications institute; Product type JX-GBG) 150kg, Quilonum Retard 150kg, Sunmorl N 60S 25kg, triterpenoid saponin 8kg add continued and stirred 5～10 minutes, promptly make powder composition 2 of the present invention.Calculate according to weight percent, powder composition 2 comprises: 15% poly carboxylic acid; 46.7% calcium aluminate; 15% Quilonum Retard; 2.5% Sunmorl N 60S; 0.8% triterpenoid saponin; With 20% calcium sulfate.
Embodiment 4 (liquid compsn 2 that preparation 500L has slow setting property)
In the reaction kettle of 600～1000L, add deionized water 128.5kg, be warming up to 30～38 ℃, add Tai-Ace S 150 75kg; Fully after the dissolving, add Sunmorl N 60S 12.5kg, trolamine 5kg, (solid content is 42% to the polycarboxylate emulsion, available from Sichuan superstar's technological applications institute; Product type JX-GBNHY) 175kg, Lithium Hydroxide MonoHydrate 100kg; The dissolving back adds triterpenoid saponin 4kg fully, continues to stir after 3～8 minutes, promptly makes liquid compsn 2 of the present invention.Calculate according to weight percent, liquid compsn 2 comprises: 35% polycarboxylate emulsion; 15% Tai-Ace S 150; 20% Lithium Hydroxide MonoHydrate; 2.5% Sunmorl N 60S; 0.8% triterpenoid saponin; 1% trolamine; With 25.7% deionized water.
Embodiment 5 (powder composition 3 that preparation 1000kg has frost resistance)
At volume is to add Aluminium Sulphate usp (powder) 200kg, calcium aluminate 596kg in the stirrer of 1500L, after starting stirrer and fully mixing and stirring 3～5 minutes.Add polycarboxylate (available from Sichuan superstar's technological applications institute, product type JX-GBNHG) 100kg, Lithium Hydroxide MonoHydrate 100kg, triterpenoid saponin 4kg successively, add continued and mixed 5～10 minutes, promptly make powder composition 2 of the present invention.Calculate according to weight percent, powder composition 3 comprises: 10% polycarboxylate; 59.6% calcium aluminate; 10% Lithium Hydroxide MonoHydrate; 0.4% triterpenoid saponin; With 20% Tai-Ace S 150.
Test case 1
The chemical property of each compsn in test the foregoing description, test result is as shown in table 1 below.
Table 1. is of the present invention to be used to suppress the chemical property of the compsn of concrete alkali aggregate reaction
Test case 2
Respectively with the powder composition 1,2 of the 7kg of embodiment of the invention preparation and 3 and the liquid compsn 1 of 2.5kg and 2 and the cement mixing of 100kgJX-AARC1 model; And the physicals of after making corresponding concrete product, testing each concrete product, test result is as shown in table 2 below.
Table 2. mixes the concrete physicals that is used to suppress the compsn of concrete alkali aggregate reaction of the present invention
Claims (9)
1. a compsn that is used to suppress concrete alkali aggregate reaction calculates according to weight percent, and said composition comprises:
10～50% fluidizer, said fluidizer be selected from the group that comprises poly carboxylic acid series water reducer, naphthalene water reducer, melamine water reducing agent and sulfamate water reducer one of at least;
10～70% aluminate; With
10～30% an alkali metal salt or alkaline earth salt, this an alkali metal salt or alkaline earth salt be selected from the group that comprises lithium salt compound, barium salt compound and calcium magnesium salt compound one of at least,
And each components contents summation is 100%.
2. the compsn that is used to suppress concrete alkali aggregate reaction according to claim 1; It further comprises 0.4～0.8% tensio-active agent, this tensio-active agent be selected from the group that comprises rosin, colophonium pyrolytic polymer, alkylphenol and ethylene oxide condensate, sulfonated alkylbenzene and triterpenoid saponin one of at least.
3. the compsn that is used to suppress concrete alkali aggregate reaction according to claim 1 and 2; It further comprises 1.5～2.5% poly-hydroxy glucide, this poly-hydroxy glucide be selected from the group that comprises Sunmorl N 60S, calglucon and sucrose one of at least.
4. the compsn that is used to suppress concrete alkali aggregate reaction according to claim 3, wherein, said composition is a powder, and comprises:
10～20% fluidizer;
40～70% aluminate;
10～20% an alkali metal salt or alkaline earth salt;
0.4～0.8% tensio-active agent;
1.5～2.5% poly-hydroxy glucide; With
10～20% vitriol, this vitriol are calcium sulfate, permanent white or its combination,
And each components contents summation is 100%.
5. the compsn that is used to suppress concrete alkali aggregate reaction according to claim 3, wherein, said composition is a liquid, and comprises:
30～50% fluidizer;
10～20% aluminate;
20～30% an alkali metal salt or alkaline earth salt;
0.4～0.8% tensio-active agent;
1.5～2.5% poly-hydroxy glucide; With
1.0～2.0% alcohol amine compound, this alcohol amine compound are trolamine, diethylolamine or its combination; With
10～40% pure water,
And each components contents summation is 100%.
6. the compsn that is used to suppress concrete alkali aggregate reaction according to claim 3, wherein, said aluminate is that alumina content is 55～65% calcium aluminate.
7. the compsn that is used to suppress concrete alkali aggregate reaction according to claim 3; Wherein, said lithium salt compound is at least a compound that is selected from the group that comprises Quilonum Retard, lithium chloride, lithium fluoride, Trilithium phosphate, Lithium Sulphate, lithium nitrate and lithium oxalate.
8. one kind prepares the described method for compositions that is used to suppress concrete alkali aggregate reaction of claim 4; This method comprises: under the situation of stirrer running; Add aluminate, tensio-active agent, poly-hydroxy glucide, an alkali metal salt or alkaline earth salt, fluidizer and vitriol, stirring mixes it then.
9. one kind prepares the described method for compositions that is used to suppress concrete alkali aggregate reaction of claim 5, and this method comprises: in reaction kettle, add pure water, start stirrer when being warming up to 30～65 ℃; Add aluminate then; After it is fully dissolved, add an alkali metal salt or alkaline earth salt, poly-hydroxy glucide, alcohol amine compound and fluidizer when being cooled to 28～38 ℃ again, it is fully dissolved after; Add tensio-active agent again, stirring mixes it then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710187838A CN101439943B (en) | 2007-11-19 | 2007-11-19 | Composition for inhibiting concrete alkali aggregate reaction and preparation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710187838A CN101439943B (en) | 2007-11-19 | 2007-11-19 | Composition for inhibiting concrete alkali aggregate reaction and preparation thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101439943A CN101439943A (en) | 2009-05-27 |
| CN101439943B true CN101439943B (en) | 2012-09-19 |
Family
ID=40724577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710187838A Active CN101439943B (en) | 2007-11-19 | 2007-11-19 | Composition for inhibiting concrete alkali aggregate reaction and preparation thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101439943B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531458B (en) * | 2010-12-09 | 2014-05-28 | 苏笮斌 | Anti-crack and anti-corrosion plasticizer composition and preparation method thereof |
| CN102531452B (en) * | 2010-12-10 | 2014-09-10 | 苏笮斌 | Anti-corrosion anti-cracking reinforcing agent composition and preparation method thereof |
| CN102557509B (en) * | 2010-12-28 | 2013-08-07 | 中铁五局（集团）有限公司 | Preparation method of slate alkali reactivity restraining addition agent |
| CN102659339A (en) * | 2012-04-11 | 2012-09-12 | 云南建工集团有限公司 | Preparation method of sodium gluconate concrete super-retarding additive |
| AU2016377393B2 (en) * | 2015-12-23 | 2021-07-01 | Fine Powder Technologies Pty Ltd | Accelerator for hydraulic composition |
| CN109970367A (en) * | 2019-04-19 | 2019-07-05 | 四川省劲腾环保建材有限公司 | A method of preparing alkali during extruding dregs porcelain granule |
| CN112851234A (en) * | 2021-01-18 | 2021-05-28 | 天津大学 | Super-toughness concrete for prefabricated part and preparation method thereof |
| CN115340390B (en) * | 2022-07-14 | 2023-10-10 | 洛阳理工学院 | Preparation method of red mud-based baking-free high-strength clay brick alkali inhibitor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4968734A (en) * | 1986-07-01 | 1990-11-06 | W. R. Grace & Co.-Conn. | Cement admixture |
| CN101058499A (en) * | 2007-05-16 | 2007-10-24 | 肖燎 | Concrete light silicon fibre crack-proof intensifier |
-
2007
- 2007-11-19 CN CN200710187838A patent/CN101439943B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4968734A (en) * | 1986-07-01 | 1990-11-06 | W. R. Grace & Co.-Conn. | Cement admixture |
| CN101058499A (en) * | 2007-05-16 | 2007-10-24 | 肖燎 | Concrete light silicon fibre crack-proof intensifier |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2001-180996A 2001.07.03 |
| JP特开2007-169144A 2007.07.05 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101439943A (en) | 2009-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101439943B (en) | Composition for inhibiting concrete alkali aggregate reaction and preparation thereof | |
| JP4913303B2 (en) | Reactive magnesium oxide cement | |
| Hooton | Canadian use of ground granulated blast-furnace slag as a supplementary cementing material for enhanced performance of concrete | |
| CN101602589B (en) | Preformed material for post-tensioned prestressing pipeline vacuum grouting or mudjacking and preparation method thereof | |
| US5484480A (en) | Use of alumina clay with cement fly ash mixtures | |
| CN110590205B (en) | Geopolymer and preparation method | |
| CN112500056B (en) | Superfine solid waste base grouting material and preparation method thereof | |
| CN109942235A (en) | Room temperature conserves ground polymers concrete of high-strength high anti-carbonation properties and preparation method thereof | |
| CN109437649A (en) | A kind of preservative of Concrete Resist Reinforcing Sulfate Corrosion and preparation method thereof | |
| KR100655260B1 (en) | Water proof admixtures for concrete and mortar | |
| CN101786822A (en) | High-impervious microcrystal self-curing type cement additive | |
| CN104016611A (en) | High-durability concrete waterproofing agent | |
| CN101885589A (en) | Compound sulfate cement | |
| GB2514472A (en) | Metal oxide cement | |
| CN1982254A (en) | Antiseptic concrete air-tight agent composition and its production | |
| CN101503284B (en) | Anti-erosion agent and masonry mortar material containing the same | |
| Chakkor et al. | Metakaolin and red-mud based geopolymer: resistance to sodium and magnesium sulfate attack | |
| Mohapatra et al. | Hybrid alkali activated cements (HAACs) system: A state-of-the-art review on fresh, mechanical, and durability behaviour | |
| CN114751706A (en) | Concrete crack repairing material based on nano material and preparation method thereof | |
| CN110698149A (en) | High-corrosion-resistance marine cement cementing material and preparation method thereof | |
| KR101473228B1 (en) | The composition of solidificant having highstrength and rapid solidification | |
| CN111943546A (en) | Coral aggregate and low-cost modification method thereof | |
| CN111234711A (en) | High-durability inorganic bar-planting adhesive and preparation method thereof | |
| CN101497508B (en) | Composite modifying agent and low-strength concrete prepared thereby | |
| CN103342521B (en) | Concrete capable of resisting concentrated seawater and desulfurization flue gas corrosion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Composition for inhibiting concrete alkali aggregate reaction and preparation thereof Effective date of registration: 20160421 Granted publication date: 20120919 Pledgee: Chengdu small business financing Company Limited by Guarantee Pledgor: Su Zebin Registration number: 2016990000318 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170328 Granted publication date: 20120919 Pledgee: Chengdu small business financing Company Limited by Guarantee Pledgor: Su Zebin Registration number: 2016990000318 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Composition for inhibiting concrete alkali aggregate reaction and preparation thereof Effective date of registration: 20170411 Granted publication date: 20120919 Pledgee: Chengdu small business financing Company Limited by Guarantee Pledgor: Su Zebin Registration number: 2017990000291 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180409 Granted publication date: 20120919 Pledgee: Chengdu small business financing Company Limited by Guarantee Pledgor: Su Zebin Registration number: 2017990000291 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Composition for inhibiting concrete alkali aggregate reaction and preparation thereof Effective date of registration: 20180412 Granted publication date: 20120919 Pledgee: Chengdu small business financing Company Limited by Guarantee Pledgor: Su Zebin Registration number: 2018510000040 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190429 Granted publication date: 20120919 Pledgee: Chengdu small business financing Company Limited by Guarantee Pledgor: Su Zebin Registration number: 2018510000040 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Composition for inhibiting concrete alkali aggregate reaction and preparation thereof Effective date of registration: 20190506 Granted publication date: 20120919 Pledgee: Chengdu small business financing Company Limited by Guarantee Pledgor: Su Zebin Registration number: 2019510000052 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200506 Granted publication date: 20120919 Pledgee: Chengdu small business financing Company Limited by Guarantee Pledgor: Su Zebin Registration number: 2019510000052 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Composition for inhibiting concrete alkali aggregate reaction and preparation thereof Effective date of registration: 20200509 Granted publication date: 20120919 Pledgee: Chengdu small business financing Company Limited by Guarantee Pledgor: Su Zebin Registration number: Y2020510000048 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210428 Granted publication date: 20120919 Pledgee: Chengdu small business financing Company Limited by Guarantee Pledgor: Su Zebin Registration number: Y2020510000048 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: The invention relates to a composition for inhibiting alkali aggregate reaction of concrete and a preparation method thereof Effective date of registration: 20210430 Granted publication date: 20120919 Pledgee: Chengdu small business financing Company Limited by Guarantee Pledgor: Su Zebin Registration number: Y2021510000036 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220414 Granted publication date: 20120919 Pledgee: Chengdu small business financing Company Limited by Guarantee Pledgor: Su Zebin Registration number: Y2021510000036 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: The invention relates to a composition for inhibiting concrete alkali aggregate reaction and a preparation method thereof Effective date of registration: 20220705 Granted publication date: 20120919 Pledgee: Zhejiang Mintai Commercial Bank Co.,Ltd. Chengdu Jintang sub branch Pledgor: Su Zebin Registration number: Y2022510000193 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |