CN107188467B - A kind of maritime concrete protection land used polymer coating materials - Google Patents
A kind of maritime concrete protection land used polymer coating materials Download PDFInfo
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- CN107188467B CN107188467B CN201710416708.9A CN201710416708A CN107188467B CN 107188467 B CN107188467 B CN 107188467B CN 201710416708 A CN201710416708 A CN 201710416708A CN 107188467 B CN107188467 B CN 107188467B
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- 238000000576 coating method Methods 0.000 title claims abstract description 110
- 239000011248 coating agent Substances 0.000 title claims abstract description 108
- 239000000463 material Substances 0.000 title claims abstract description 97
- 239000004567 concrete Substances 0.000 title claims abstract description 56
- 229920000642 polymer Polymers 0.000 title claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 230000008961 swelling Effects 0.000 claims abstract description 46
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 35
- 239000012190 activator Substances 0.000 claims abstract description 19
- 229910000323 aluminium silicate Inorganic materials 0.000 claims abstract description 9
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002657 fibrous material Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 6
- 239000007822 coupling agent Substances 0.000 claims abstract description 5
- 239000000375 suspending agent Substances 0.000 claims abstract description 5
- 229920003169 water-soluble polymer Polymers 0.000 claims abstract description 5
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical group CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 52
- 239000000835 fiber Substances 0.000 claims description 46
- 230000036961 partial effect Effects 0.000 claims description 37
- 239000004743 Polypropylene Substances 0.000 claims description 31
- 229920001155 polypropylene Polymers 0.000 claims description 31
- 239000000839 emulsion Substances 0.000 claims description 29
- 239000000395 magnesium oxide Substances 0.000 claims description 25
- 239000004576 sand Substances 0.000 claims description 24
- 239000010426 asphalt Substances 0.000 claims description 23
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 21
- 239000004927 clay Substances 0.000 claims description 19
- 239000002893 slag Substances 0.000 claims description 19
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 14
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical group O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 claims description 14
- 239000011863 silicon-based powder Substances 0.000 claims description 14
- 229940080314 sodium bentonite Drugs 0.000 claims description 14
- 229910000280 sodium bentonite Inorganic materials 0.000 claims description 14
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 12
- 239000010881 fly ash Substances 0.000 claims description 12
- HXOGQBSDPSMHJK-UHFFFAOYSA-N triethoxy(6-methylheptyl)silane Chemical compound CCO[Si](OCC)(OCC)CCCCCC(C)C HXOGQBSDPSMHJK-UHFFFAOYSA-N 0.000 claims description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 8
- 239000000292 calcium oxide Substances 0.000 claims description 8
- 229910052744 lithium Inorganic materials 0.000 claims description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Inorganic materials [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 8
- 229940092782 bentonite Drugs 0.000 claims description 7
- 229910000278 bentonite Inorganic materials 0.000 claims description 7
- 239000000440 bentonite Substances 0.000 claims description 7
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 7
- 229920001577 copolymer Polymers 0.000 claims description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 6
- 239000005977 Ethylene Substances 0.000 claims description 6
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 6
- -1 partial size≤2.36mm Substances 0.000 claims description 6
- OAOABCKPVCUNKO-UHFFFAOYSA-N 8-methyl Nonanoic acid Chemical compound CC(C)CCCCCCC(O)=O OAOABCKPVCUNKO-UHFFFAOYSA-N 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 229920001038 ethylene copolymer Polymers 0.000 claims description 5
- 239000006210 lotion Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- 239000004816 latex Substances 0.000 claims description 4
- 229920000126 latex Polymers 0.000 claims description 4
- 229920000058 polyacrylate Polymers 0.000 claims description 4
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 2
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000008399 tap water Substances 0.000 claims 1
- 235000020679 tap water Nutrition 0.000 claims 1
- 229920000876 geopolymer Polymers 0.000 abstract description 71
- 238000002360 preparation method Methods 0.000 abstract description 23
- 238000001764 infiltration Methods 0.000 abstract description 8
- 238000005336 cracking Methods 0.000 abstract description 7
- 230000002708 enhancing effect Effects 0.000 abstract description 7
- 230000008595 infiltration Effects 0.000 abstract description 7
- 230000002209 hydrophobic effect Effects 0.000 abstract description 6
- 230000002421 anti-septic effect Effects 0.000 abstract description 4
- 239000012752 auxiliary agent Substances 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 abstract description 3
- 230000008030 elimination Effects 0.000 abstract description 2
- 238000003379 elimination reaction Methods 0.000 abstract description 2
- 239000002585 base Substances 0.000 description 38
- 238000003756 stirring Methods 0.000 description 31
- 230000000052 comparative effect Effects 0.000 description 26
- ALVYUZIFSCKIFP-UHFFFAOYSA-N triethoxy(2-methylpropyl)silane Chemical group CCO[Si](CC(C)C)(OCC)OCC ALVYUZIFSCKIFP-UHFFFAOYSA-N 0.000 description 17
- 239000011247 coating layer Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 15
- 239000000203 mixture Substances 0.000 description 12
- 239000000725 suspension Substances 0.000 description 11
- 238000004090 dissolution Methods 0.000 description 10
- 239000002904 solvent Substances 0.000 description 10
- 239000004568 cement Substances 0.000 description 9
- 238000005507 spraying Methods 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 7
- 239000011253 protective coating Substances 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 6
- 230000004907 flux Effects 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 208000037656 Respiratory Sounds Diseases 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 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 2
- 235000011128 aluminium sulphate Nutrition 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000004574 high-performance concrete Substances 0.000 description 2
- 238000009775 high-speed stirring Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 239000011398 Portland cement Substances 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- CQBLUJRVOKGWCF-UHFFFAOYSA-N [O].[AlH3] Chemical compound [O].[AlH3] CQBLUJRVOKGWCF-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910000329 aluminium sulfate Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000004347 surface barrier Methods 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
- C04B28/006—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mineral polymers, e.g. geopolymers of the Davidovits type
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/24—Sea water resistance
-
- 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
Abstract
The present invention relates to antiseptic concrete technical fields, it is desirable to provide a kind of maritime concrete protection land used polymer coating materials.The coating material is mixed by the raw material components of following portions by weight: 100 parts of aluminosilicate material, 10~20 parts of alkali-activator, 50~200 parts of fine aggregate, 5~20 parts of water-soluble polymer, 0.2~0.5 part of fibrous material, 3~5 parts of swelling agent, 0.5~2 part of water-reducing agent, 0.5~1 part of suspending agent, 0.5~1 part of coupling agent, 0.2~0.5 part of defoaming agent, 30~50 parts of water.The present invention uses multi-ensuring measure, collaboration enhancing polymer coating materials anti-dry-shrinkage cracking property；Organic functional material is compounded, the hydrophobic and anti-ion infiltration function of geopolymer coating material is enhanced；By preferred function auxiliary agent, geopolymer coating material rheological property is improved, bubble in slurry, enhances the workability of geopolymer coating material in elimination preparation process.
Description
Technical field
The present invention relates to Marine Engineering High-performance Concrete technical field of anticorrosion, and in particular to a kind of maritime concrete protection land used
Polymer coating materials.
Background technique
China is ocean big country, develops marine resources, Development of Marine economy is China's grand strategy decision.Ocean engineering is built
If being the important prerequisite and basic guarantee of comprehensive marine exploitation, but since (radiation is strong, salinity is high, wet for the particularity of marine environment
Degree is big etc.), it is existing to will cause metal material corrosion and destruction, the expansion of reinforced concrete structure cracking, high molecular material deformation deterioration etc.
As.Concrete has high requirements to its durability as ocean engineering important materials.Conventional Marine Engineering High-performance Concrete is to suppression
The deterioration Yu failure of material have certain effect under marine environmental conditions processed, but it cannot fundamentally solve villaumite under marine environment
Corrosion with sulfate to concrete material.Its basic reason after being ordinary cement aquation is formed with C-S-H gel and 3Ca
(OH)2Based on heterogeneous material, SO4 2-、Cl-、Mg2+Plasma is easy and calcium hydroxide, the aluminium sulfate etc. in water mudrock structure
Crystalline phase reacts, and causes volume of concrete variation, short texture, shortens ocean engineering active time, cause serious commercial
Loss and life and property loss.
Geopolymer (Geopolymer) end of the seventies in last century proposes by professor Davidovits, also known as inorganic polymeric
Object is that alkali-activator reacts a kind of using aluminum-oxygen tetrahedron and oxygen-octahedron as structural units of generation with aluminosilicate material,
Three-dimensional network shape gel with crystalline state and amorphous state feature.Geopolymer raw material sources are extensive, and preparation process is simple, have
Ceramics and organic matter feature performance benefit, are a kind of novel gelled materials, are expected to replace conventional cement cementitious material.Geopolymer infiltration
Rate is low, high with concrete adhesive force, without crystalline phases such as calcium hydroxide, aluminium sulfates, not with SO in ocean4 2-、Cl-、Mg2+Deng
The reaction such as ion, corrosion resistance is strong, firm in structure, can be used as one of the preferred material of ocean engineering material.Li Wenjin is (inorganic poly-
Close the research of object durability of marine concrete, Harbin Institute of Technology's Master's thesis, 2012) using slag as aluminosilicate material,
Using NaOH as alkali-activator, geopolymer gelled material is synthesized, and admix coarse-fine aggregate, develop ocean engineering concrete, grind
Study carefully and shows that geopolymer is the non-crystalline substances that a kind of essential element is C, O, Si, Ca, Al, even particle distribution, with tradition
Cement is compared, and 3d, 7d resistance to compression and flexural strength are superior to cement, also superior to cement, bulking property in terms of anticorrosive, durability
It can be more superior than cement.
For geopolymer in addition to directly doing maritime concrete, main research emphasis is still used as traditional maritime concrete surface
Barrier material improves agent on crack resistance of concrete SO4 2-、Cl-Plasma erosion ability.(the A novel such as Aguirre-Guerrero
geopolymer application:coatings to protect reinforced concrete against
Corrosion, Applied Clay Science, 2017,135:437-446) respectively with flyash (FA) and metakaolin
It (MK) is aluminosilicate material, using potassium silicate as alkali-activator, and the auxiliary material such as compound sand river sand, PP fiber and Portland cement
Material, develops two kinds of geopolymer protective coatings, is used for concrete surface, and result of study shows the geopolymer coating in coagulation
There is high adhesive force on native surface, can significantly reduce Cl-Infiltration, can shield to concrete, and the polymer coated protection in the ground MK-
Effect is better than FA- geopolymer coating, but in accelerated corrosion test, MK- and FA- geopolymer coating can only all bear four
A drying and watering cycle, protection effect just disappear.(the Potential application of geopolymer such as Zhang Z
As protection coatings for marine concrete I-III, Applied Clay Science, 2010,
49:1-6, Applied Clay Science, 2010,49:7-12, Applied Clay Science, 2012,67-68:57-
60) three hierarchical research geopolymer coating is tested from theory, laboratory lab scale, real sea to make the protection of maritime concrete
With geopolymer coating under the effect of sodium base alkali-activator, and is compounded by aluminosilicate materials such as metakaolin, slags
MgO- base swelling agent and PP fiber and other material are prepared, preparation process are as follows: metakaolin, slag and MgO- base swelling agent etc. are dry
Material is first uniformly mixed, and PP fiber is mixed with alkali activating agent solution, and PP fiber is made to be uniformly dispersed, then after mixing with dry powder blend material,
Reaction generates geopolymer coating.It is suitable solidifying that result of study shows that geopolymer protective coating has on maritime concrete surface
Tie time, good adhesive force and fabulous anti-corrosion protection function.Meanwhile geopolymer easily shrinks in condensation, hardening process and opens
Splitting can be alleviated by MgO- base swelling agent and PP fiber, but in actual application, this relaxation effect is not enough.
Summary of the invention
The technical problem to be solved by the present invention is to overcome deficiency in the prior art, provide a kind of maritime concrete protection
Land used polymer coating materials.
In order to solve the technical problem, solution of the invention is:
There is provided a kind of maritime concrete protection land used polymer coating materials, which is characterized in that be by following portions by weight
Raw material components mix:
In heretofore described raw material components: aluminosilicate material is one in metakaolin, flyash, slag or silicon powder
Kind or a variety of, partial size≤325 mesh；Alkali-activator is NaOH, KOH, Na2O·nSiO2Or K2O·nSiO2Middle one kind, wherein n=1
~4；Fine aggregate is natural sand or artificial sand, and partial size≤2.36mm, clay content is less than 0.5%；Water-soluble polymer is redisperse
Latex powder or aqueous polymer lotion, wherein redisperse latex powder is the copolymer of ethylene/vinyl acetate, vinyl acetate/uncle
One of ethylene carbonate copolymer, aqueous polymer lotion are in asphalt emulsion, polyacrylate dispersion or polyaminoester emulsion
One kind；Fibrous material is polypropylene (PP) fiber or PVA fiber, and length is less than 10mm；Swelling agent is CaO base swelling agent, MgO
Base swelling agent or calcium sulphoaluminate class swelling agent；Water-reducing agent is polycarboxylate water-reducer；Suspending agent is sodium bentonite or lithium base swelling
Soil；Coupling agent is isobutyl triethoxy silane or isooctyltriethoxysilane；The defoaming agent is octanol；Water is originally
Water.
Maritime concrete of the present invention protects land used polymer coating materials, is prepared by following step:
(1) each raw material component is weighed by the parts by weight；
(2) aluminosilicate material, swelling agent and fibrous material is added, in mixing machine with the stirring of 600~1000rpm revolving speed
5~10min makes fibrous material be uniformly dispersed；
(3) water, alkali-activator, water-reducing agent and suspending agent are added in blender, with 600~1000rpm revolving speed stir to
Alkali-activator and water-reducing agent dissolution, suspension solvent swell；The mixing of water-soluble polymer, coupling agent and step (1) preparation is added
After continuing 3~5min of stirring with 1000~2000rpm revolving speed, fine aggregate is added in material；With 1000~2000rpm revolving speed stirring 3~
After 5min, defoaming agent is added；After stirring 1~3min with 300~500rpm revolving speed, geopolymer coating material is obtained.
The application method of maritime concrete protection land used polymer coating materials of the present invention is as follows: using spraying or brush
Geopolymer coating material is coated in maritime concrete surface, 5~10mm of coating layer thickness by the mode of painting；Coating after coating without
Crackle, adhesive force >=2.0MPa, protected maritime concrete 6h electric flux≤500C.
Inventive principle description:
1, multi-ensuring, collaboration enhancing geopolymer coating material anti-dry-shrinkage cracking property
For geopolymer in condensation and hardening process, volume contraction is serious, easily leads to cracking, is that geopolymer one is big
Drawback.The present invention takes multi-ensuring, and collaboration enhancing improves geopolymer coating material anti-dry-shrinkage cracking property, and means include:
1. using organic polymer material, membranous body is formed in geopolymer, fills geopolymer gelled material and fine aggregate
Between gap, strike up partnership with cementitious material, enhancing aggregate cohere, improve geopolymer coating material toughness, enhancing tension,
Bending strength reduces contraction distortion；2. use fine aggregate, reduce by cementitious material condensation hardening process in drying shrinkage bulking institute
Caused volume change, prevents crackle from generating；3. utilizing fibrous material, crackle diffusion energy is consumed, constrains crack growth；4. utilizing
Swelling agent compensates geopolymer drying shrinkage.
2, organic functional material is compounded, the hydrophobic and anti-ion infiltration function of geopolymer coating material is enhanced
Geopolymer aperture is small compared with cement concrete, and water resistant and ion penetrating power are strong compared with cement concrete, but as sea
Work concrete protection coating material, once ion penetration crosses geopolymer coating, inner concrete equally faces corrosion danger
Evil, therefore, it is necessary to further strengthen geopolymer coating water resistant and ion infiltration function.The present invention compounds organic functional material,
Enhance the hydrophobic and anti-ion infiltration function of geopolymer coating material, means include: 1. using organic polymer material, enhancing ground
Polymer coating materials compactness, and itself has hydrophobic function, can effectively prevent Cl-、SO4 2-Ion infiltration；2. using silane
Coupling agent, for silane coupling agent under geopolymer high alkalinity environment, the hydrophilic organic functional group in silane hydrolyzes to form high reaction
Active silanol, silanol continue to form chemical knot with the hydroxyl groups generation irreversible reaction in hydrated product
It closes, reaction product is filled in the microcrack and micropore of specimen surface, keeps specimen surface more closely knit, and moisture and ion is prevented to seep
Diffusion thoroughly improves geopolymer durability.
3, preferred function auxiliary agent strengthens geopolymer coating material workability
It is directed to the research of geopolymer at present, is all the use by geopolymer according to conventional cement concrete
Mode is studied, never have in the industry consideration using geopolymer as coating material carry out using.Thus lead
The geopolymer for causing the prior art to obtain, which is such as used as coating material to use, can have difference of application performance, cause to apply
Layer poor product quality, cannot achieve its safeguard function.The preferably suitable suspension aids of the present invention, prevent functional material from settling, and improve
Geopolymer coating material rheological property, and the defoaming agents such as octanol are taken, bubble in slurry, enhances ground in elimination preparation process
The workability of polymer coating materials.
Compared with prior art, the device have the advantages that including:
1, the present invention uses multi-ensuring measure, collaboration enhancing polymer coating materials anti-dry-shrinkage cracking property；
2, organic functional material is compounded, the hydrophobic and anti-ion infiltration function of geopolymer coating material is enhanced；
3, by preferred function auxiliary agent, geopolymer coating material rheological property is improved, is eliminated in preparation process in slurry
Bubble enhances the workability of geopolymer coating material.
Specific embodiment
Embodiment 1
A kind of maritime concrete protection land used polymer coating materials include the component of following weight fraction: slag (partial size
≤ 325 mesh) 50 parts, 50 parts of flyash (partial size≤325 mesh), 10 parts of NaOH, (partial size≤2.36mm, clay content are small for natural sand sand
In 0.5%) 50 parts, 5 parts of the copolymer of ethylene/vinyl acetate, 0.2 part of PP fiber (length≤10mm), CaO base swelling agent 3
Part, 0.5 part of poly carboxylic acid series water reducer, 0.5 part of sodium bentonite, 0.5 part of isobutyl triethoxy silane, 0.2 part of octanol, water 50
Part.
The preparation method comprises the following steps: 1) slag, flyash, CaO base swelling agent and PP fiber are added in a high speed mixer, stirring
5min (revolving speed 1000rpm) makes fiber be uniformly dispersed；2) toward be added in high-speed mixer water, NaOH, poly carboxylic acid series water reducer and
Sodium bentonite stirs (revolving speed 600rpm), and after alkali-activator, water-reducing agent dissolution and suspension solvent swell, step 1) system is added
Copolymer, the isobutyl triethoxy silane of standby mixture and ethylene/vinyl acetate, high-speed stirred 3min (revolving speed
After 2000rpm), river sand sand is added, continues high-speed stirred 3min (revolving speed 2000rpm), octanol is added, stirs 1min (revolving speed slowly
500rpm), geopolymer coating material is obtained.
Application method: using spraying method, and geopolymer coating material is coated in maritime concrete surface, coating layer thickness
5mm, coating performance are shown in Table 1.
Embodiment 2
A kind of maritime concrete protection land used polymer coating materials include the component of following weight fraction: slag (partial size
≤ 325 mesh) 80 parts, 20 parts of metakaolin (partial size≤325 mesh), Na2O·1.2SiO215 parts, artificial sand sand (partial size≤
2.36mm, clay content is less than 0.5%) 80 parts, vinyl acetate/8 parts of versatic acid ethylene copolymer, PVA fiber (length≤10mm)
0.5 part, 5 parts of MgO base swelling agent is 2 parts of poly carboxylic acid series water reducer, 1 part of lithium bentonite, 1 part of isooctyltriethoxysilane, pungent
0.5 part of alcohol, 30 parts of water.
The preparation method comprises the following steps: 1) slag, metakaolin, MgO base swelling agent and PVA fiber are added in a high speed mixer, stir
Mixing 10min (revolving speed 600rpm) makes fiber be uniformly dispersed；2) toward addition water, Na in high-speed mixer2O·1.2SiO2, polycarboxylic acids
Based water reducer and lithium bentonite stir (revolving speed 1000rpm), after alkali-activator, water-reducing agent dissolution and suspension solvent swell, add
Enter the mixture and vinyl acetate/versatic acid ethylene copolymer, isooctyltriethoxysilane of step 1) preparation, high-speed stirring
After mixing 5min (revolving speed 1000rpm), artificial sand sand is added, continues high-speed stirred 5min (revolving speed 1000rpm), octanol is added, slowly
3min (revolving speed 300rpm) is stirred, geopolymer coating material is obtained.
Application method: using spraying method, and geopolymer coating material is coated in maritime concrete surface, coating layer thickness
10mm, coating performance are shown in Table 1.
Embodiment 3
A kind of maritime concrete protection land used polymer coating materials include the component of following weight fraction: slag (partial size
≤ 325 mesh) 75 parts, 20 parts of metakaolin (partial size≤325 mesh), 5 parts of silicon powder (partial size≤325 mesh), 15 parts of KOH, artificial sand sand
(partial size≤2.36mm, clay content is less than 0.5%) 100 parts, 20 parts of polyaminoester emulsion, 0.3 part of PVA fiber (length≤10mm),
4 parts of swelling agent of calcium sulphoaluminate class base, 2 parts of poly carboxylic acid series water reducer, 0.8 part of sodium bentonite, isooctyltriethoxysilane 0.8
Part, 0.3 part of octanol, 40 parts of water.
The preparation method comprises the following steps: 1) slag, metakaolin, silicon powder, calcium sulphoaluminate class base swelling agent are added in a high speed mixer
With PVA fiber, stirring 8min (revolving speed 800rpm) makes fiber be uniformly dispersed；2) toward addition water, KOH, poly- carboxylic in high-speed mixer
Sour based water reducer and sodium bentonite stir (revolving speed 800rpm), after alkali-activator, water-reducing agent dissolution and suspension solvent swell,
The mixture and polyaminoester emulsion, isooctyltriethoxysilane of step 1) preparation, high-speed stirred 4min (revolving speed is added
After 1500rpm), artificial sand sand is added, continues high-speed stirred 4min (revolving speed 1500rpm), octanol is added, stirs 2min (revolving speed slowly
400rpm), geopolymer coating material is obtained.
Application method: using brushing mode, and geopolymer coating material is coated in maritime concrete surface, coating layer thickness
8mm, coating performance are shown in Table 1.
Embodiment 4
A kind of maritime concrete protection land used polymer coating materials include the component of following weight fraction: slag (partial size
≤ 325 mesh) 70 parts, 15 parts of metakaolin (partial size≤325 mesh), 10 parts of flyash, 5 parts of silicon powder (partial size≤325 mesh), K2O·
4SiO220 parts, (partial size≤2.36mm, clay content is less than 0.5%) 200 parts, 15 parts of polyacrylate dispersion, PP for natural sand sand
0.3 part of fiber (length≤10mm), 4 parts of MgO base swelling agent, 1 part of poly carboxylic acid series water reducer, 0.8 part of sodium bentonite, isobutyl group
0.8 part of triethoxysilane, 0.3 part of octanol, 35 parts of water.
The preparation method comprises the following steps: 1) slag, metakaolin, flyash, silicon powder, MgO base swelling agent are added in a high speed mixer
With PP fiber, stirring 8min (revolving speed 800rpm) makes fiber be uniformly dispersed；2) toward addition water, K in high-speed mixer2O·4SiO2、
Poly carboxylic acid series water reducer and sodium bentonite stir (revolving speed 800rpm), to alkali-activator, water-reducing agent dissolution and suspension solvent swell
Afterwards, the mixture and polyacrylate dispersion, isobutyl triethoxy silane of step 1) preparation, high-speed stirred 4min is added
After (revolving speed 1500rpm), artificial sand is added, continues high-speed stirred 4min (revolving speed 1500rpm), octanol is added, stirs 2min slowly and (turns
Fast 400rpm), obtain geopolymer coating material.
Application method: using spraying method, and geopolymer coating material is coated in maritime concrete surface, coating layer thickness
8mm, coating performance are shown in Table 1.
Embodiment 5
A kind of maritime concrete protection land used polymer coating materials include the component of following weight fraction: slag (partial size
≤ 325 mesh) 80 parts, 10 parts of metakaolin (partial size≤325 mesh), 10 parts of silicon powder (partial size≤325 mesh), Na2O·1.5SiO215
Part, (partial size≤2.36mm, clay content is less than 0.5%) 120 parts, 15 parts of asphalt emulsion, PP fiber (length≤10mm) for natural sand
0.3 part, 4 parts of MgO base swelling agent, 1 part of poly carboxylic acid series water reducer, 0.8 part of sodium bentonite, isobutyl triethoxy silane 0.8
Part, 0.3 part of octanol, 35 parts of water.
The preparation method comprises the following steps: 1) it is fine that slag, metakaolin, silicon powder, MgO base swelling agent and PP are added in a high speed mixer
Dimension, stirring 8min (revolving speed 800rpm) make fiber be uniformly dispersed；2) toward addition water, Na in high-speed mixer2O·1.5SiO2, it is poly-
Carboxylic acid water reducing agent and sodium bentonite stir (revolving speed 800rpm), to alkali-activator, water-reducing agent dissolution and suspension solvent swell
Afterwards, the mixture and asphalt emulsion, isobutyl triethoxy silane of step 1) preparation, high-speed stirred 4min (revolving speed is added
After 1500rpm), artificial sand is added, continues high-speed stirred 4min (revolving speed 1500rpm), octanol is added, stirs 2min (revolving speed slowly
400rpm), geopolymer coating material is obtained.
Application method: using spraying method, and geopolymer coating material is coated in maritime concrete surface, coating layer thickness
8mm, coating performance are shown in Table 1.
Embodiment 6
A kind of maritime concrete protection land used polymer coating materials include the component of following weight fraction: slag (partial size
≤ 325 mesh) 70 parts, 15 parts of metakaolin (partial size≤325 mesh), 15 parts of silicon powder (partial size≤325 mesh), K2O·2.5SiO215 parts,
(partial size≤2.36mm, clay content is less than 0.5%) 160 parts, 15 parts of asphalt emulsion, PP fiber (length≤10mm) 0.4 for natural sand
Part, 3 parts of CaO base swelling agent, 1.5 parts of poly carboxylic acid series water reducer, 0.8 part of sodium bentonite, isobutyl triethoxy silane 0.8
Part, 0.3 part of octanol, 45 parts of water.
The preparation method comprises the following steps: 1) it is fine that slag, metakaolin, silicon powder, CaO base swelling agent and PP are added in a high speed mixer
Dimension, stirring 9min (revolving speed 900rpm) make fiber be uniformly dispersed；2) toward addition water, K in high-speed mixer2O·2.5SiO2, poly- carboxylic
Sour based water reducer and sodium bentonite stir (revolving speed 800rpm), after alkali-activator, water-reducing agent dissolution and suspension solvent swell,
The mixture and asphalt emulsion, isobutyl triethoxy silane of step 1) preparation, high-speed stirred 4min (revolving speed is added
After 1500rpm), artificial sand is added, continues high-speed stirred 4min (revolving speed 1500rpm), octanol is added, stirs 2min (revolving speed slowly
400rpm), geopolymer coating material is obtained.
Application method: using brushing mode, and geopolymer coating material is coated in maritime concrete surface, coating layer thickness
10mm, coating performance are shown in Table 1.
Embodiment 7
A kind of maritime concrete protection land used polymer coating materials include the component of following weight fraction: slag (partial size
≤ 325 mesh) 20 parts, 70 parts of metakaolin (partial size≤325 mesh), 10 parts of silicon powder (partial size≤325 mesh), Na2O·2.0SiO215
Part, natural sand (partial size≤2.36mm, clay content less than 0.5%) 180 parts, 12 parts of polyaminoester emulsion, PP fiber (length≤
10mm) 0.3 part, 5 parts of MgO base swelling agent, 1 part of poly carboxylic acid series water reducer, 0.8 part of sodium bentonite, iso-octyl triethoxysilicane
0.8 part of alkane, 0.3 part of octanol, 40 parts of water.
The preparation method comprises the following steps: 1) it is fine that slag, metakaolin, silicon powder, MgO base swelling agent and PP are added in a high speed mixer
Dimension, stirring 8min (revolving speed 800rpm) make fiber be uniformly dispersed；2) toward addition water, Na in high-speed mixer2O·2.0SiO2, it is poly-
Carboxylic acid water reducing agent and sodium bentonite stir (revolving speed 800rpm), to alkali-activator, water-reducing agent dissolution and suspension solvent swell
Afterwards, the mixture and polyaminoester emulsion, isooctyltriethoxysilane of step 1) preparation, high-speed stirred 4min (revolving speed is added
After 1500rpm), natural sand is added, continues high-speed stirred 4min (revolving speed 1500rpm), octanol is added, stirs 2min (revolving speed slowly
400rpm), geopolymer coating material is obtained.
Application method: using spraying method, and geopolymer coating material is coated in maritime concrete surface, coating layer thickness
9mm, coating performance are shown in Table 1.
Embodiment 8
A kind of maritime concrete protection land used polymer coating materials include the component of following weight fraction: metakaolin
70 parts of (partial size≤325 mesh), 20 parts of flyash, 10 parts of silicon powder (partial size≤325 mesh), K2O·3.0SiO218 parts, natural sand (grain
Diameter≤2.36mm, clay content is less than 0.5%) 80 parts, 6 parts of the copolymer of ethylene/vinyl acetate, PVA fiber (length≤
10mm) 0.3 part, 5 parts of CaO base swelling agent, 1 part of poly carboxylic acid series water reducer, 0.6 part of lithium bentonite, iso-octyl triethoxysilicane
0.6 part of alkane, 0.3 part of octanol, 50 parts of water.
The preparation method comprises the following steps: 1) metakaolin, flyash, silicon powder, CaO base swelling agent and PVA are added in a high speed mixer
Fiber, stirring 6min (revolving speed 900rpm) make fiber be uniformly dispersed；2) toward addition water, K in high-speed mixer2O·3.0SiO2, it is poly-
Carboxylic acid water reducing agent and lithium bentonite stir (revolving speed 600rpm), to alkali-activator, water-reducing agent dissolution and suspension solvent swell
Afterwards, the mixture of step 1) preparation and copolymer, the isooctyltriethoxysilane of ethylene/vinyl acetate, high speed is added
After stirring 4min (revolving speed 1600rpm), natural sand is added, continues high-speed stirred 3min (revolving speed 1800rpm), octanol is added, slowly
3min (revolving speed 350rpm) is stirred, geopolymer coating material is obtained.
Application method: using spraying method, and geopolymer coating material is coated in maritime concrete surface, coating layer thickness
10mm, coating performance are shown in Table 1.
Embodiment 9
A kind of maritime concrete protection land used polymer coating materials include the component of following weight fraction: metakaolin
30 parts of (partial size≤325 mesh), 70 parts of flyash, Na2O·1.8SiO212 parts, (partial size≤2.36mm, clay content are less than artificial sand
0.5%) 100 parts, vinyl acetate/6 parts of versatic acid ethylene copolymer, 0.3 part of PVA fiber (length≤10mm), MgO base swelling agent
5 parts, 1 part of poly carboxylic acid series water reducer, 0.6 part of lithium bentonite, 0.6 part of isooctyltriethoxysilane, 0.3 part of octanol, water 50
Part.
The preparation method comprises the following steps: 1) metakaolin, flyash, MgO base swelling agent and PVA fiber are added in a high speed mixer,
Stirring 6min (revolving speed 900rpm) makes fiber be uniformly dispersed；2) toward addition water, Na in high-speed mixer2O·1.8SiO2, polycarboxylic acids
Based water reducer and lithium bentonite stir (revolving speed 600rpm), after alkali-activator, water-reducing agent dissolution and suspension solvent swell, add
Enter the mixture and vinyl acetate/versatic acid ethylene copolymer, isooctyltriethoxysilane of step 1) preparation, high-speed stirring
After mixing 4min (revolving speed 1600rpm), natural sand is added, continues high-speed stirred 3min (revolving speed 1800rpm), octanol is added, stirs slowly
3min (revolving speed 350rpm) obtains geopolymer coating material.
Application method: using spraying method, and geopolymer coating material is coated in maritime concrete surface, coating layer thickness
8mm, coating performance are shown in Table 1.
1. ground polymeric protective coating material property of table
Common C40 concrete or the minimum C30 concrete charge pass of hole are generally 1500C (6h), using routine techniques
Means are difficult to the electric flux of C30 or C40 concrete dropping to 500C (6h) below.
Compare embodiment
Following comparative example is carried out based on the best case-embodiment 5 of the comprehensive performance in above-mentioned 9 cases
Setting.
Comparative example 1
" 15 parts of asphalt emulsion " in embodiment 5 is changed to " 0 part of asphalt emulsion ", remaining is equal to embodiment 5, coating
2 can be shown in Table.
Comparative example 2
" 0.3 part of PP fiber (length≤10mm) " in embodiment 5 is changed to " 0 part of PP fiber (length≤10mm) ",
Remaining to be equal to embodiment 5, coating performance is shown in Table 2.
Comparative example 3
" 4 parts of MgO base swelling agent " in embodiment 5 is changed to " 0 part of MgO base swelling agent ", remaining etc.
With embodiment 5, coating performance is shown in Table 2.1. ground polymeric protective coating material property of table
Comparative example 4
" 0.8 part of isobutyl triethoxy silane " in embodiment 5 is changed to " 0 part of isobutyl triethoxy silane ",
Remaining to be equal to embodiment 5, coating performance is shown in Table 2.
Comparative example 5
" 0.3 part of octanol " in embodiment 5 is changed to " 0 part of octanol ", remaining is equal to embodiment 5, and coating performance is shown in Table
2。
Comparative example 6
" 15 parts of asphalt emulsion, 0.3 part of PP fiber (length≤10mm) " in embodiment 5 are changed to " 0 part of asphalt emulsion,
0 part of PP fiber (length≤10mm) ", remaining is equal to embodiment 5, and coating performance is shown in Table 2.
Comparative example 7
" 15 parts of asphalt emulsion, 4 parts of MgO base swelling agent " in embodiment 5 are changed to " 0 part of asphalt emulsion, the expansion of MgO base
0 part of agent ", remaining is equal to embodiment 5, and coating performance is shown in Table 2.
Comparative example 8
" 0.3 part of PP fiber (length≤10mm), 4 parts of MgO base swelling agent " in embodiment 5 is changed to " PP fiber (length
≤ 10mm) 0 part, 0 part of MgO base swelling agent ", remaining is equal to embodiment 5, and coating performance is shown in Table 2.
2. geopolymer protective coating performance of table
Comparative example 9
" 15 parts of asphalt emulsion, 0.8 part of isobutyl triethoxy silane " in embodiment 5 are changed to " 0 part of asphalt emulsion,
0 part of isobutyl triethoxy silane ", remaining is equal to embodiment 5, and coating performance is shown in Table 3.
Comparative example 10
By " 15 parts of asphalt emulsion, 0.3 part of PP fiber (length≤10mm), 4 parts of MgO base swelling agent " replacements in embodiment 5
For " 0 part of asphalt emulsion, 0 part of PP fiber (length≤10mm), 0 part of MgO base swelling agent, ", remaining is equal to embodiment 5, coating
Performance is shown in Table 3.
Comparative example 11
" 15 parts of asphalt emulsion " in embodiment 5 is changed to " 25 parts of asphalt emulsion ", remaining is equal to embodiment 5, coating
Performance is shown in Table 3.
Comparative example 12
" 15 parts of asphalt emulsion " in embodiment 5 is changed to " 4 parts of asphalt emulsion ", remaining is equal to embodiment 5, coating
3 can be shown in Table.
Comparative example 13
" 0.3 part of PP fiber (length≤10mm) " in embodiment 5 is changed to " 0.6 part of PP fiber (length≤10mm) ",
Remaining is equal to embodiment 5, and coating performance is shown in Table 3.
Comparative example 14
" 0.3 part of PP fiber (length≤10mm) " in embodiment 5 is changed to " 0.1 part of PP fiber (length≤10mm) ",
Remaining is equal to embodiment 5, and coating performance is shown in Table 3.
Comparative example 15
" 4 parts of MgO base swelling agent " in embodiment 5 is changed to " 6 parts of MgO base swelling agent ", remaining is equal to embodiment 5,
Coating performance is shown in Table 3.
Comparative example 16
" 4 parts of MgO base swelling agent " in embodiment 5 is changed to " 2 parts of MgO base swelling agent ", remaining is equal to embodiment 5,
Coating performance is shown in Table 3.
3. geopolymer protective coating performance of table
Comparative example 17
" 0.8 part of isobutyl triethoxy silane " in embodiment 5 is changed to " 0.4 part of isobutyl triethoxy silane ",
Remaining is equal to embodiment 5, and coating performance is shown in Table 3.
Comparative example 18
" 0.8 part of isobutyl triethoxy silane " in embodiment 5 is changed to " 1.2 parts of isobutyl triethoxy silane ",
Remaining is equal to embodiment 5, and coating performance is shown in Table 3.
Comparative example 19
" 0.3 part of octanol " in embodiment 5 is changed to " 0.1 part of octanol ", remaining is equal to embodiment 5, and coating performance is shown in
Table 3.
Comparative example 20
" 0.3 part of octanol " in embodiment 5 is changed to " 0.6 part of octanol ", remaining is equal to embodiment 5, and coating performance is shown in
Table 3.
Comparative example 21
" coating layer thickness 8mm " in embodiment 5 is changed to " coating layer thickness 4mm ", remaining is equal to embodiment 5, coating
3 can be shown in Table.
Comparative example 22
" coating layer thickness 8mm " in embodiment 5 is changed to " coating layer thickness 12mm ", remaining is equal to embodiment 5, coating
3 can be shown in Table.
Comparative example 23
" natural sand (partial size≤2.36mm, clay content is less than 0.5%) 120 parts " in embodiment 5 is changed to " natural sand
(partial size≤2.36mm, clay content is less than 0.5%) 40 parts ", remaining is equal to embodiment 5, and coating performance is shown in Table 3.
Comparative example 24
" natural sand (partial size≤2.36mm, clay content is less than 0.5%) 120 parts " in embodiment 5 is changed to " natural sand
(partial size≤2.36mm, clay content is less than 0.5%) 220 parts ", remaining is equal to embodiment 5, and coating performance is shown in Table 3.
4. geopolymer protective coating performance of table
From the data of comparative example 1-24 it can be seen that
(1) asphalt emulsion, PP fiber, the collaboration of MgO base swelling agent use, and dry shrink of geopolymer coating can be overcome to generate
Crack is avoided that Cl-It penetrates to maritime concrete surface, reduces maritime concrete electric flux value, improve antiseptic property；
(2) use of the organic functional materials such as asphalt emulsion, isobutyl triethoxy silane, can improve geopolymer coating
Material hydrophobic function can prevent Cl-Maritime concrete surface is infiltrated into, maritime concrete electric flux value is also reduced, improves
Antiseptic property.
(3) parameters such as geopolymer coating material formulation range and coating layer thickness all have strict demand, such as increase drip
Green lotion dosage will lead to coating adhesion decline, and reduce asphalt emulsion dosage, will lead to the raising of coating electric flux, increases and apply
It will lead to coating cracking after layer, and reduce coating layer thickness, then antiseptic property declines, and electric flux also increases.
The above list is only a few specific embodiments of the present invention for finally, it should also be noted that.Obviously, this hair
Bright to be not limited to above embodiments, acceptable there are many deformations.Those skilled in the art can be from present disclosure
All deformations for directly exporting or associating, are considered as protection scope of the present invention.
Claims (1)
1. a kind of maritime concrete protects land used polymer coating materials, which is characterized in that be the raw material by following portions by weight
Component mixes:
Aluminosilicate material: 100 parts
Alkali-activator: 10 ~ 20 parts
Fine aggregate: 50 ~ 200 parts
Water-soluble polymer: 5 ~ 20 parts
Fibrous material: 0.2 ~ 0.5 part
Swelling agent: 3 ~ 5 parts
Water-reducing agent: 0.5 ~ 2 part
Suspending agent: 0.5 ~ 1 part
Coupling agent: 0.5 ~ 1 part
Defoaming agent: 0.2 ~ 0.5 part
Water: 30 ~ 50 parts；
In the raw material components: aluminosilicate material is one of metakaolin, flyash, slag or silicon powder or a variety of, grain
Diameter≤325 mesh；Alkali-activator is NaOH, KOH, Na2O•nSiO2Or K2O•nSiO2Middle one kind, wherein n=1 ~ 4；Fine aggregate is day
Right sand or artificial sand, partial size≤2.36mm, clay content is less than 0.5%；Water-soluble polymer is redisperse latex powder or polymer water
Property lotion, wherein redisperse latex powder is the copolymer of ethylene/vinyl acetate, in vinyl acetate/versatic acid ethylene copolymer
One kind, aqueous polymer lotion is one of asphalt emulsion, polyacrylate dispersion or polyaminoester emulsion；Fibrous material is
Polypropylene fibre or PVA fiber, length are less than 10mm；Swelling agent is CaO base swelling agent, MgO base swelling agent or calcium sulphoaluminate class
Base swelling agent；Water-reducing agent is poly carboxylic acid series water reducer；Suspending agent is sodium bentonite or lithium bentonite；Coupling agent is isobutyl group
Triethoxysilane or isooctyltriethoxysilane；The defoaming agent is octanol；Water is tap water.
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| CN109020393B (en) * | 2018-09-07 | 2021-03-26 | 武汉轻工大学 | Geopolymer-based marine concrete protective coating material and preparation method thereof |
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