CN107151114A - A kind of preparation method of epoxy concrete for underwater concrete defect repair - Google Patents
A kind of preparation method of epoxy concrete for underwater concrete defect repair Download PDFInfo
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- CN107151114A CN107151114A CN201710300295.8A CN201710300295A CN107151114A CN 107151114 A CN107151114 A CN 107151114A CN 201710300295 A CN201710300295 A CN 201710300295A CN 107151114 A CN107151114 A CN 107151114A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/30—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds
- C04B26/32—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds containing silicon
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/40—Compounds containing silicon, titanium or zirconium or other organo-metallic compounds; Organo-clays; Organo-inorganic complexes
- C04B24/42—Organo-silicon compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G14/00—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00
- C08G14/02—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes
- C08G14/04—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols
- C08G14/12—Chemically modified polycondensates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/14—Polycondensates modified by chemical after-treatment
- C08G59/1433—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds
- C08G59/1477—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds containing nitrogen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/62—Alcohols or phenols
- C08G59/621—Phenols
- C08G59/623—Aminophenols
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/72—Repairing or restoring existing buildings or building materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/74—Underwater applications
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Abstract
The invention belongs to technical field of civil engineering, it is related to a kind of preparation method of the epoxy concrete for underwater concrete defect repair, including：(1) epoxy hardener is made by oneself；(2) the homemade epoxy hardener is modified；(3) modified epoxy；(4) underwater epoxy concrete is prepared.Beneficial effects of the present invention are：Both curing performance under concrete (mortar) mixture water at low temperature had been ensure that, the water resistance and cohesiveness of mixture can be improved again, the underwater construction performance of epoxy concrete (mortar) is improved；Graft reaction is carried out to epoxy resin-base by Amino End Group silane coupler, both while concrete (mortar) mixture and the adhesive property at old concrete interface can have been improved, the water solubility of silane coupler can be reduced again, improve the persistence of concrete (mortar) mechanical property；Technique is simple, flexible, and underwater epoxy concrete (mortar) construction technology of preparation is convenient, and the early strength of concrete (mortar) is high, good mechanical properties.
Description
Technical field
The invention belongs to technical field of civil engineering, it is related to a kind of epoxy concrete for underwater concrete defect repair
Preparation method.
Background technology
Underwater concrete structure is due to by the erosion of aqueous medium and destroying for other foeign elements, easily producing and splitting for a long time
Seam, seepage, the disease such as degrade, if carrying out repairing treatment not in time, by the safe handling of whole concrete structures and durable
Property cause serious threat.The defect repair of underwater concrete structure is complicated because there is substantial amounts of water, environment in construction environment, and
The development of patching material, Processes and apparatus is locked into, cannot be efficiently solved for a long time.
Non-dispersible underwater concrete technology, although can carry out concreting under water, but not disperseing under water of being poured
The strength grade of concrete is generally relatively low, and its early strength is low, loss of slump big, be not suitable for long distance transportation and pumping
Deng being not particularly suited for the thin layer reparation of underwater concrete fault of construction.Epoxy concrete (mortar) class material has excellent glue
The features such as connecing performance, the mechanical property of protrusion, is the preferable defects of concrete structure repair materials of a class, but ought be directly applied to
When underwater concrete fault of construction is repaired, then the adhesive strength, bonding stability and persistence of patching material can be caused significantly to drop
It is low, have a strong impact on construction quality.
Application No. 200910017156.X Chinese patent application discloses " underwater epoxy concrete, grout additive
And preparation method thereof ", propose to carry out toughening modifying to resin matrix using strange scholar's toughener QS-BE, improve the toughness of solidfied material
And impact resistance, making curing agent using phenolic aldehyde amine T-31 improves the submerged applications performance of mortar, prepares available under water
Epoxy concrete, grout additive.The additive prepared using this method can assign the gravity flow of epoxy concrete, mortar necessarily
Flat, self compacting ability, available for thin layer repairing under water, and with certain mechanical strength.
Application No.：201610768952.7 Chinese patent application disclose " a kind of underwater epoxy mending mortar and its
Preparation method ", proposes to make component A, cashew nut oil modified phenolic aldehyde amine curing agent using bisphenol A epoxide resin and reactive diluent
Make B component with toughener, different-grain diameter quartz sand filler makees component C, prepares underwater epoxy mending mortar.Ring prepared by this method
Oxygen mortar have under water rapid curing, it is water-fast the characteristics of.Epoxy concrete or mortar prepared by both approaches is used all for three
Component, necessarily increases the triviality of work progress, and simple epoxy concrete using modified phenolic amine curing agent mix,
Water resistance, underwater construction performance and the mechanical property of mortar need further to improve.
The content of the invention
The purpose of the present invention is to can be directly used for underwater concrete defect repair there is provided one kind in view of the shortcomings of the prior art
High-performance epoxy concrete (mortar, similarly hereinafter) preparation method, by using water-repelling agent to alicyclic phenol amine curable epoxide
Agent carries out graft modification, while curing performance under ensureing concrete mix water at low temperature, can improve the water resistance of mixture
And cohesiveness；By Amino End Group silane coupler to epoxy resin-base carry out graft reaction, improve concrete mix with
While the adhesive property at old concrete interface, the water solubility of silane coupler is reduced, the mechanical property for improving concrete is held
Long property.A kind of preparation side for high-performance epoxy concrete that can be directly used for underwater concrete defect repair that the present invention is provided
Method, flexibly, simply, production cost is low for technique；Convenient, the good mechanical properties of underwater epoxy concrete construction of preparation.
The technical scheme of the present invention that solves the problems, such as is：A kind of system of epoxy concrete for underwater concrete defect repair
Preparation Method, including：
(1) make by oneself epoxy hardener, alicyclic phenol amine epoxy curing agent is prepared by Mannich reaction, by phenol,
Dimethylphenylene diamine, 37% formalin are according to 1:3.5:1.5 mass ratio, reacts 3h under conditions of 95 DEG C, then-
0.095MPa heated under vacuum carries out dewater treatments to 110 DEG C；
(2) the homemade epoxy hardener is modified
The homemade epoxy hardener is diluted, the water-repelling agent of the addition parts by weight of curing agent 0.05~2.0 is simultaneously equal
Even stirring, adds stirring reaction 1h under the water of the parts by weight of water-repelling agent 20, normal temperature condition, obtains the curable epoxide of hydrophobic modification
Agent；
(3) modified epoxy
Epoxy resin is heated to 60 DEG C, the gamma-aminopropyl-triethoxy-silane that addition parts by weight are 1~5, uniform stirring
0.5h is reacted, the active epoxy diluent of the polyfunctionality of 7~20 parts by weight is added and the epoxy resin of 5~15 parts by weight increases
Agent is moulded, continues to stir, be cooled to room temperature, obtain modified epoxy resin；
(4) underwater epoxy concrete is prepared
Under room temperature condition, by modified epoxy resin and modified epoxy hardener according to 4.7:1~2.5:1 ratio
Example is uniformly mixed, and with epoxy concrete aggregate according to 1:3~1:5 ratio carries out uniform mix 10min, obtains directly
High-performance epoxy concrete for underwater concrete defect repair.
Further, the amine value of the homemade epoxy hardener in step 1 is 540 ± 30mg KOH/g, and viscosity is
300~500mPa ﹒ s.
Further, the diluent in step 2 uses one kind in ketone, alcohols, esters and benzene class diluent.
Further, the water-repelling agent in step 2 is octyl group trimethoxy silane, positive decyl trimethoxy silane, just
One kind in dodecyltrimethoxysilane, hexadecyl trimethoxy silane.
Further, the epoxy resin adoption rate of the modification in step 3 is 10:0~6:4 modification E44 is with changing
Property E51 mixture.
Further, the active epoxy diluent of the polyfunctionality in step 3 is lived for the polypropylene glycol of bifunctionality
One or both in property diluent, the expoxy propane o-cresyl ether reactive diluent of single functionality and epoxy propane butyl ether
It is compound.
Further, the epoxy resin plasticizer in step 3 is diethyl phthalate, the fourth of phthalic acid two
One or both of ester, o-phthalic acid dibutyl ester are combined.
Further, the epoxy concrete aggregate in step 4 is quartz sand, silica flour.
Further, the proportioning of the aggregate size in step 4 is：The parts by weight of 5-8mm particle diameter aggregates are 0-15,3-
The parts by weight of 5mm particle diameter aggregates are 0-5, and the parts by weight of 1-3mm particle diameter aggregates are 0-5, the parts by weight of 40-70 mesh particle diameter aggregates
For 20-65, the parts by weight of 70-100 mesh particle diameter aggregates are 35-60, and the parts by weight of 100 mesh particle diameter aggregates are 3-10.
Beneficial effects of the present invention are：
1. carrying out graft modification to alicyclic phenol amine epoxy curing agent using water-repelling agent, concrete mix both ensure that
Curing performance under water at low temperature, can improve the water resistance and cohesiveness of mixture again, improve the underwater construction performance of epoxy concrete；
Graft reaction is carried out to epoxy resin-base by Amino End Group silane coupler, can both improve concrete mix and old concrete
While the adhesive property at interface, the water solubility of silane coupler can be reduced again, improve the persistence of mechanical performance of concrete；
2. technique is simple, flexible, the underwater epoxy concrete construction technology of preparation is convenient, and the early strength of concrete
Height, good mechanical properties.
Embodiment
With reference to embodiment, the present invention is further illustrated.
The preparation method, including：
(1) make by oneself epoxy hardener, alicyclic phenol amine epoxy curing agent is prepared by Mannich reaction, by phenol,
Dimethylphenylene diamine, 37% formalin are according to 1:3.5:1.5 mass ratio, reacts 3h under conditions of 95 DEG C, then-
0.095MPa heated under vacuum carries out dewater treatments to 110 DEG C；
(2) the homemade epoxy hardener is modified
The homemade epoxy hardener is diluted, the water-repelling agent of the addition parts by weight of curing agent 0.05~2.0 is simultaneously equal
Even stirring, adds stirring reaction 1h under the water of the parts by weight of water-repelling agent 20, normal temperature condition, obtains the curable epoxide of hydrophobic modification
Agent；
(3) modified epoxy
Epoxy resin is heated to 60 DEG C, the gamma-aminopropyl-triethoxy-silane that addition parts by weight are 1~5, uniform stirring
0.5h is reacted, the asphalt mixtures modified by epoxy resin that the active epoxy diluent and parts by weight of the polyfunctionality that parts by weight are 7~20 are 5~15 is added
Fat plasticizer, continues to stir, is cooled to room temperature, obtain modified epoxy resin；
(4) underwater epoxy concrete is prepared
Under room temperature condition, by modified epoxy resin and modified epoxy hardener according to 4.7:1~2.5:1 ratio
Example is uniformly mixed, and with epoxy concrete aggregate according to 1:3~1:5 ratio carries out uniform mix 10min, obtains directly
High-performance epoxy concrete for underwater concrete defect repair.
Further, the amine value of the homemade epoxy hardener in step 1 is 540 ± 30mg KOH/g, and viscosity is
300~500mPa ﹒ s.
Further, the diluent in step 2 uses one kind in ketone, alcohols, esters and benzene class diluent.
Further, the water-repelling agent in step 2 is octyl group trimethoxy silane, positive decyl trimethoxy silane, just
One kind in dodecyltrimethoxysilane, hexadecyl trimethoxy silane.
Further, the epoxy resin adoption rate of the modification in step 3 is 10:0~6:4 modification E44 is with changing
Property E51 mixture.
Further, the active epoxy diluent of the polyfunctionality in step 3 is lived for the polypropylene glycol of bifunctionality
One or both in property diluent, the expoxy propane o-cresyl ether reactive diluent of single functionality and epoxy propane butyl ether
It is compound.
Further, the epoxy resin plasticizer in step 3 is diethyl phthalate, the fourth of phthalic acid two
One or both of ester, o-phthalic acid dibutyl ester are combined.
Further, the epoxy concrete aggregate in step 4 is quartz sand, silica flour.
Further, the proportioning of the aggregate size in step 4 is as shown in table 1：
Table 1
| Particle diameter | 5~8mm | 3~5mm | 1~3mm | 40~70 mesh | 70~100 mesh | 100 mesh |
| Parts by weight | 0-15 | 0-5 | 0-5 | 20-65 | 35-60 | 3-10 |
The preparation of 5 kinds of epoxy concretes is carried out according to the method described above：
Embodiment 1：
(1) epoxy hardener is made by oneself
Alicyclic phenol amine epoxy curing agent is prepared by Mannich reaction, by phenol, m-xylene diamine, 37% Fu Er
Malin is according to 1:3.5:1.5 mass ratio, reacts 3h under conditions of 95 DEG C, then in -0.095MPa heated under vacuum
To 110 DEG C of progress dewater treatments；
(2) epoxy hardener is modified
Self-control alicyclic phenol amine epoxy curing agent is diluted in acetone, the water-repelling agent of the parts by weight of curing agent 0.5 is added
Octyl group trimethoxy silane and uniform stirring, add stirring reaction 1 hour under the water of the parts by weight of water-repelling agent 20, normal temperature condition, i.e.,
It can obtain the epoxy hardener of hydrophobic modification.
(3) epoxy resin modification
Epoxy resin is heated to 60 DEG C or so, addition weight is divided into 1 gamma-aminopropyl-triethoxy-silane, uniformly stirs
Reaction 0.5 hour is mixed, the diethyl phthalate that the active epoxy diluent 207 and parts by weight that addition parts by weight are 7 are 5,
Continue to stir, be cooled to room temperature, obtain modified epoxy resin.
(4) prepared by underwater epoxy concrete (mortar)
By modified epoxy resin and modified epoxy hardener according to 4.7:1 ratio is uniformly mixed, and
With epoxy concrete (mortar) aggregate according to 1:3 ratio carries out uniform mix, you can obtain can be directly used for underwater concrete
The high-performance epoxy concrete (mortar) of defect repair.Epoxy concrete (mortar) aggregate used be different-grain diameter quartz sand,
The aggregates such as silica flour are formulated in proportion, and it is as shown in table 2 with reference to ratio：
Table 2
| Particle diameter | 5~8mm | 3~5mm | 1~3mm | 40~70 mesh | 70~100 mesh | 100 mesh |
| Parts by weight | 0 | 0 | 5 | 55 | 37 | 3 |
Embodiment 2：
(1) epoxy hardener is made by oneself：Be the same as Example 1；
(2) epoxy hardener is modified
Self-control alicyclic phenol amine epoxy curing agent is diluted in absolute ethyl alcohol, dredging for the parts by weight of curing agent 0.7 is added
Aqua positive decyl trimethoxy silane and uniform stirring, add stirring reaction 1 under the water of the parts by weight of water-repelling agent 20, normal temperature condition small
When, you can obtain the epoxy hardener of hydrophobic modification.
(3) epoxy resin modification
Epoxy resin is heated to 60 DEG C or so, the gamma-aminopropyl-triethoxy-silane that addition parts by weight are 2 is uniformly stirred
Reaction 0.5 hour is mixed, the fourth of phthalic acid two that the active epoxy diluent 691 and parts by weight that addition parts by weight are 10 are 7
Ester, continues to stir, is cooled to room temperature, obtains modified epoxy resin.
(4) prepared by underwater epoxy concrete (mortar)
By modified epoxy resin and modified epoxy hardener according to 4:1 ratio is uniformly mixed, and with
Epoxy concrete (mortar) aggregate is according to 1:3.5 ratio carries out uniform mix, you can obtain can be directly used for underwater concrete
The high-performance epoxy concrete (mortar) of defect repair.Epoxy concrete (mortar) aggregate used be different-grain diameter quartz sand,
The aggregates such as silica flour are formulated in proportion, and it is as shown in table 3 with reference to ratio：
Table 3
| Particle diameter | 5~8mm | 3~5mm | 1~3mm | 40~70 mesh | 70~100 mesh | 100 mesh |
| Parts by weight | 5 | 1 | 1 | 40 | 50 | 3 |
Embodiment 3：
(1) epoxy hardener is made by oneself：Be the same as Example 1；
(2) epoxy hardener is modified
Self-control alicyclic phenol amine epoxy curing agent is diluted in ethyl acetate, dredging for the parts by weight of curing agent 1.0 is added
Aqua dodecyl trimethoxy silane and uniform stirring, add under the water of the parts by weight of water-repelling agent 20, normal temperature condition and stir anti-
Answer 1 hour, you can obtain the epoxy hardener of hydrophobic modification.
(3) epoxy resin modification
Epoxy resin is heated to 60 DEG C or so, the gamma-aminopropyl-triethoxy-silane that addition parts by weight are 3 is uniformly stirred
Reaction 0.5 hour is mixed, the phthalic acid two that the active epoxy diluent 501 and parts by weight that addition parts by weight are 13 are 10 is pungent
Ester, continues to stir, is cooled to room temperature, obtains modified epoxy resin.
(4) prepared by underwater epoxy concrete (mortar)
By modified epoxy resin and modified epoxy hardener according to 3.5:1 ratio is uniformly mixed, and
With epoxy concrete (mortar) aggregate according to 1:4 ratio carries out uniform mix, you can obtain can be directly used for underwater concrete
The high-performance epoxy concrete (mortar) of defect repair.Epoxy concrete (mortar) aggregate used be different-grain diameter quartz sand,
The aggregates such as silica flour are formulated in proportion, and it is as shown in table 4 with reference to ratio：
Table 4
| Particle diameter | 5~8mm | 3~5mm | 1~3mm | 40~70 mesh | 70~100 mesh | 100 mesh |
| Parts by weight | 0 | 0 | 0 | 60 | 35 | 5 |
Embodiment 4：
(1) epoxy hardener is made by oneself：Be the same as Example 1；
(2) epoxy hardener is modified
Self-control alicyclic phenol amine epoxy curing agent is diluted in toluene, the water-repelling agent of the parts by weight of curing agent 1.5 is added
Hexadecyl trimethoxy silane and uniform stirring, add stirring reaction 1 under the water of the parts by weight of water-repelling agent 20, normal temperature condition small
When, you can obtain the epoxy hardener of hydrophobic modification.
(3) epoxy resin modification
Epoxy resin is heated to 60 DEG C or so, the gamma-aminopropyl-triethoxy-silane that addition parts by weight are 4 is uniformly stirred
Reaction 0.5 hour is mixed, (the two mass ratio is 3 to the active epoxy diluent 207 and 691 that addition parts by weight are 15:1), and add
10% diethyl phthalate, continues to stir, is cooled to room temperature, obtains modified epoxy resin.
(4) prepared by underwater epoxy concrete (mortar)
By modified epoxy resin and modified epoxy hardener according to 3.5:1 ratio is uniformly mixed, and
With epoxy concrete (mortar) aggregate according to 1:4 ratio carries out uniform mix, you can obtain can be directly used for underwater concrete
The high-performance epoxy concrete (mortar) of defect repair.Epoxy concrete (mortar) aggregate used be different-grain diameter quartz sand,
The aggregates such as silica flour are formulated in proportion, and it is as shown in table 5 with reference to ratio：
Table 5
| Particle diameter | 5~8mm | 3~5mm | 1~3mm | 40~70 mesh | 70~100 mesh | 100 mesh |
| Parts by weight | 15 | 1 | 1 | 27 | 46 | 10 |
Embodiment 4：
(1) epoxy hardener is made by oneself：Be the same as Example 1；
(2) epoxy hardener is modified
Self-control alicyclic phenol amine epoxy curing agent is diluted in dimethylbenzene, the hydrophobic of the parts by weight of curing agent 2.0 is added
Agent dodecyl trimethoxy silane and uniform stirring, add stirring reaction 1 under the water of the parts by weight of water-repelling agent 20, normal temperature condition
Hour, you can obtain the epoxy hardener of hydrophobic modification.
(3) epoxy resin modification
Epoxy resin is heated to 60 DEG C or so, the gamma-aminopropyl-triethoxy-silane that addition parts by weight are 5 is uniformly stirred
Reaction 0.5 hour is mixed, (the two mass ratio is 5 to the active epoxy diluent 207 and 501 that addition parts by weight are 20:1), and add
Parts by weight are 15 dioctyl phthalate, continue to stir, are cooled to room temperature, obtain modified epoxy resin.
(4) prepared by underwater epoxy concrete (mortar)
By modified epoxy resin and modified epoxy hardener according to 2.5:1 ratio is uniformly mixed, and
With epoxy concrete (mortar) aggregate according to 1:5 ratio carries out uniform mix, you can obtain can be directly used for underwater concrete
The high-performance epoxy concrete (mortar) of defect repair.Epoxy concrete (mortar) aggregate used be different-grain diameter quartz sand,
The aggregates such as silica flour are formulated in proportion, and it is as shown in table 6 with reference to ratio：
Table 6
| Particle diameter | 5~8mm | 3~5mm | 1~3mm | 40~70 mesh | 70~100 mesh | 100 mesh |
| Parts by weight | 7.5 | 3 | 0 | 35 | 44.5 | 10 |
High-performance epoxy concrete (mortar) prepared by embodiment 1,2 is in 10 ± 2 DEG C of 500 ± 50mm of the depth of water of water temperature bar
Part Imitating underwater environment is molded, and high-performance epoxy concrete (mortar) prepared by embodiment 3~5 is in water temperature 15 ± 2
Simulation underwater environment is molded under conditions of DEG C 500 ± 50mm of the depth of water, epoxy concrete (mortar) cohesiveness, levelability under water
Well, test block conserve 7 respectively, the important technological parameters tested after 28 days it is as shown in table 7：
Table 7
The present invention is not limited to above-mentioned embodiment, in the case of without departing substantially from substantive content of the present invention, art technology
Any deformation that personnel are contemplated that, improvement, replace and each fall within protection scope of the present invention.
Claims (9)
1. a kind of preparation method of epoxy concrete for underwater concrete defect repair, including：
(1) make epoxy hardener by oneself, alicyclic phenol amine epoxy curing agent is prepared by Mannich reaction, by phenol, a diformazan
Phenylenediamine, 37% formalin are according to 1:3.5:1.5 mass ratio, reacts 3h, then in -0.095MPa under conditions of 95 DEG C
Heated under vacuum carries out dewater treatments to 110 DEG C；
(2) the homemade epoxy hardener is modified
The homemade epoxy hardener is diluted, the water-repelling agent of the parts by weight of curing agent 0.05~2.0 is added and uniformly stirs
Mix, add stirring reaction 1h under the water of the parts by weight of water-repelling agent 20, normal temperature condition, obtain the epoxy hardener of hydrophobic modification；
(3) modified epoxy
Epoxy resin is heated to 60 DEG C, the gamma-aminopropyl-triethoxy-silane that addition parts by weight are 1~5, uniform stirring reaction
0.5h, adds the active epoxy diluent and the epoxy resin plasticizer of 5~15 parts by weight of the polyfunctionality of 7~20 parts by weight,
Continue to stir, be cooled to room temperature, obtain modified epoxy resin；
(4) underwater epoxy concrete is prepared
Under room temperature condition, by modified epoxy resin and modified epoxy hardener according to 4.7:1~2.5:1 ratio is entered
The uniform mixing of row, and with epoxy concrete aggregate according to 1:3~1:5 ratio carries out uniform mix 10min, is directly used in
The high-performance epoxy concrete of underwater concrete defect repair.
2. according to the method described in claim 1, it is characterised in that the amine value of the homemade epoxy hardener in step 1
For 540 ± 30mg KOH/g, viscosity is 300~500mPa ﹒ s.
3. according to the method described in claim 1, it is characterised in that the diluent in step 2 uses ketone, alcohols, ester
One kind in class and benzene class diluent.
4. according to the method described in claim 1, it is characterised in that the water-repelling agent in step 2 is octyl group trimethoxy silicon
One kind in alkane, positive decyl trimethoxy silane, dodecyl trimethoxy silane, hexadecyl trimethoxy silane.
5. according to the method described in claim 1, it is characterised in that the epoxy resin adoption rate of the modification in step 3
For 10:0~6:4 modification E44 and modified E51 mixture.
6. according to the method described in claim 1, it is characterised in that the active epoxy dilution of the polyfunctionality in step 3
Agent is polypropylene glycol reactive diluent, the expoxy propane o-cresyl ether reactive diluent and ring of single functionality of bifunctionality
One or both is combined in Ethylene Oxide butyl ether.
7. according to the method described in claim 1, it is characterised in that the epoxy resin plasticizer in step 3 is adjacent benzene two
One or both of formic acid diethylester, dibutyl phthalate, o-phthalic acid dibutyl ester are combined.
8. according to the method described in claim 1, it is characterised in that the epoxy concrete aggregate in step 4 is quartz sand,
Silica flour.
9. the method according to claim 1 or 8, it is characterised in that the proportioning of the aggregate size in step 4 is：5-
The parts by weight of 8mm particle diameter aggregates are 0-15, and the parts by weight of 3-5mm particle diameter aggregates are 0-5, and the parts by weight of 1-3mm particle diameter aggregates are
The parts by weight of 0-5,40-70 mesh particle diameter aggregate are 20-65, and the parts by weight of 70-100 mesh particle diameter aggregates are 35-60,100 mesh particle diameters
The parts by weight of aggregate are 3-10.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109135521A (en) * | 2018-07-09 | 2019-01-04 | 安徽恒隆新材料有限公司 | A kind of modified polyester resin and preparation method thereof and preparation facilities |
| CN110616058A (en) * | 2019-10-10 | 2019-12-27 | 中国地质大学（武汉） | Room temperature curing solvent-free core adhesive and preparation method thereof |
| CN111960740A (en) * | 2020-08-12 | 2020-11-20 | 宁波新力建材科技有限公司 | Underwater self-compacting concrete and preparation method thereof |
| CN115340749A (en) * | 2022-08-05 | 2022-11-15 | 四川大学 | Underwater high-temperature slow-curing single-component epoxy resin system and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1887955A (en) * | 2006-07-25 | 2007-01-03 | 长江水利委员会长江勘测规划设计研究院 | Green high-strength epoxy grouting material and its prepn |
-
2017
- 2017-05-02 CN CN201710300295.8A patent/CN107151114A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1887955A (en) * | 2006-07-25 | 2007-01-03 | 长江水利委员会长江勘测规划设计研究院 | Green high-strength epoxy grouting material and its prepn |
Non-Patent Citations (1)
| Title |
|---|
| 胡玉明等: "《固化剂》", 30 April 2004, 化学工业出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109135521A (en) * | 2018-07-09 | 2019-01-04 | 安徽恒隆新材料有限公司 | A kind of modified polyester resin and preparation method thereof and preparation facilities |
| CN109135521B (en) * | 2018-07-09 | 2020-12-08 | 安徽恒隆新材料有限公司 | Modified polyester resin and preparation method and preparation device thereof |
| CN110616058A (en) * | 2019-10-10 | 2019-12-27 | 中国地质大学（武汉） | Room temperature curing solvent-free core adhesive and preparation method thereof |
| CN111960740A (en) * | 2020-08-12 | 2020-11-20 | 宁波新力建材科技有限公司 | Underwater self-compacting concrete and preparation method thereof |
| CN115340749A (en) * | 2022-08-05 | 2022-11-15 | 四川大学 | Underwater high-temperature slow-curing single-component epoxy resin system and preparation method and application thereof |
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Application publication date: 20170912 |