CN105884253B - The polymer mortar of Rapid-Repair and application - Google Patents
The polymer mortar of Rapid-Repair and application Download PDFInfo
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- CN105884253B CN105884253B CN201610225182.1A CN201610225182A CN105884253B CN 105884253 B CN105884253 B CN 105884253B CN 201610225182 A CN201610225182 A CN 201610225182A CN 105884253 B CN105884253 B CN 105884253B
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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
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
- E01C23/0966—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for filling or priming, with or without working the surface of the filling or applying particulate material thereto, e.g. for filling the joints of stone-sett paving
- E01C23/0973—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for filling or priming, with or without working the surface of the filling or applying particulate material thereto, e.g. for filling the joints of stone-sett paving with liquid or semi-liquid materials, e.g. crack sealants
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mining & Mineral Resources (AREA)
- Road Paving Structures (AREA)
- Road Repair (AREA)
- Epoxy Resins (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention is polymer mortar and the application of a kind of Rapid-Repair.The mortar is using natural colour sand as primary raw material, using modified bisphenol A epoxide resin as cementitious matter, using Compositional type modified fatty amine as curing agent, using inorganic nano-particle as toughening filler, suitable reactive diluent, epoxy resin antifoaming agent, anti-aging agent etc. are added, is formulated in proportion.The mortar has the characteristics that good impermeability, low-temperature setting speed is fast, backfin is than low, low temperature flexibility is good, shock resistance is good, adhesion strength is high, freeze-thaw resistance is good, durability is good, while manufacture craft is simple, moderate cost, suitable for the Rapid-Repair of concrete layer freeze thawing dusting between extremely frigid zones high ferro trackless tiny fragments of stone, coal, etc. road, can be also widely applied to manhole sink, the damage revamping of freeway tunnel road surface and bridge floor, airport concrete road surface etc..
Description
Technical field
The present invention relates to a kind of high-strength highly resistance freeze thawing chromogen bonded polymer mortar and its preparation process, which repairs sand
Slurry is applied to high and cold, the regional high-speed railways concrete road surface dusting of high temperature and dry and cracked surface reconditioning.
Background technology
In China's extremely frigid zones, is influenced, made by a variety of natural causes such as the big temperature difference, Drought-wet change, Frozen-thawed cycled, wind erosion
Dusting is easily generated at concrete works, is degraded, the disasters such as crack.Disease once occurs, it is necessary to it is investigated and analysed in time,
It finds out Producing reason and suitable material and technology is taken to be repaired, to ensure the safety of concrete structure and durable
Property.
Harbin-to-Dalian special line for passenger trains is first, China extremely frigid zones high-speed railway, since opening operation, due to Harbin-to-Dalian
Line for Passenger Transportation is located in extremely frigid zones, and day and night temperature is big, causes line-to-line and curb waterproofing protection layer concrete that dusting occurs successively
Phenomenon brings security risk to high-speed railway driving.To ensure that the traffic safety of high-speed railway, Harbin-to-Dalian Ke Zhuan companies are determined to anti-
The measure that the place of water conservation layer fiber concrete generation dusting takes removing surface, lower part concrete curing carries out regulation examination
It tests.This is all studied by many domestic scientific research mechanisms.Polymer mortar not only has good mechanical performance, but also with beautiful
Appearance, be a kind of multiduty material.It has certain application in building, traffic, water conservancy, decoration industry.Compared to tradition
Cement mortar has good wearability, adhesion strength, freeze-thaw resistance and low-shrinkage, thus is repaiied as various engineering structures
The important materials of benefit.
Patent No. CN 102765919A disclose a kind of quick patching material for cement concrete pavement and preparation method thereof,
This mortar is made of epoxy resin, flyash, polyamine, diluent etc., has a high-early-strength, and adhesion strength is big, good toughness
The advantages that, but because its content of organics is excessively high, greatly reduce its durability, the filler of single grading can increase material
Brittleness.Equally its shrinking percentage can become larger at low temperature, and freeze-thaw resistance is poor.
Patent No. CN 101560077A disclose it is a kind of applied to it is board-like without prick track epoxy resin mortar composite,
The mortar has the characteristics that resistance to is that heat ageing, resistant to chemical etching, elastic and mechanical strength are good to cement, the disadvantage is that technique is more multiple
Miscellaneous, mixing time is long, is unfavorable for the quick reparation of high ferro trackless mill train concrete road surface, while its adhesion strength only has 2-
3MPa。
Therefore develop that a kind of high bond strength, good toughness, shock resistance is good, durability is good, freeze-thaw resistance is good, low-shrinkage
Polymer mortar have to its urgent repairing in extremely frigid zones high ferro non-fragment orbit concrete road surface and other concrete works
Important meaning.
Invention content
The technical problem to be solved by the present invention is to：A kind of extremely frigid zones dusting cement concrete pavement Rapid-Repair is provided
With polymer mortar, by scheme optimization and polymer compounds and modified toughened, the respective advantage of these materials of union, gram
Take polymer matrix repairing mortar poor toughness, the problems such as durability is poor admittedly soon existing in the prior art.
The present invention solves its technical problem and uses technical solution below：
The polymer mortar of Rapid-Repair provided by the invention is the modified epoxy using natural colour sand as primary raw material
For cementitious matter, Compositional type modified fatty amine is curing agent, using inorganic nano-particle as toughening filler, then adds auxiliary agent, in proportion
It is formulated；It counts in parts by weight, specific proportioning is：
300~600 parts of natural colour sand, 70~100 parts of modified epoxy, 30~60 parts of Compositional type modified multicomponent amine, nothing
2~10 parts of machine nano-particle, 1~10 part of curing accelerator, 10-30 parts of plasticizer, 10~20 parts of diluent, epoxy resin defoaming
0.1~0.5 part of agent, 0.1~0.5 part of anti-aging agent.
The modified epoxy is methylol bisphenol A type epoxy resin, and viscosity is when epoxide number >=0.45,40 DEG C
25-60Pa ﹒ s, 23~27 DEG C of softening temperature.
The Compositional type modified multicomponent amine hardener is the mixture of phenolic aldehyde amine and polyetheramine, and mixed weight ratio is 1
~3：2~1；Phenolic aldehyde amine wherein used be using phenol, formaldehyde, aliphatic cyclic amine as the third generation phenolic aldehyde amine of raw material, amine value be 440~
520mgKOH/g, viscosity 2000-4000mPa.s at 25 DEG C；Polyetheramine used is simple function, difunctionality, trifunctional polyetheramine
One or more kinds of mixtures, amine value is 200~500mgKOH/g, viscosity≤400mPa.s at 25 DEG C.
The natural colour sand, by 5~20 mesh, 20~40 mesh, 40~80 mesh, 80~100 mesh, 100~200 mesh and≤
The quartz sand of 200 mesh is compounded and is obtained, and the quartz sand accordingly compounds weight percent and is respectively：10~35%, 15~25%, 10
~20%, 5~15%, 5~20%, 20~45%.
The diluent is one kind in butyl glycidyl ether, benzyl glycidyl ether.
The curing accelerator is one kind in DMP-30, benzyl diamines, phenol.
The inorganic nano-particle is by coupling agent modified Paris white or silica, grain size 40-
60nm；The coupling agent is one kind in titanate esters or Silane coupling agent KH550, KH560.
The polymer mortar of above-mentioned Rapid-Repair provided by the invention, purposes are：In extremely frigid zones high ferro non-fragment orbit
The promptly application in repairing of dusting concrete, or sink in manhole, freeway tunnel road surface and bridge floor, airport coagulation
Application in the Rapid-Repair of soil surface breakage.
The polymer mortar is in application, be specifically to be constructed using following methods：
(1) design mixture proportion：
According to the requirement of concrete works specific feature and repairing technique, prepared polymer mortar；
(2) base treatment is repaired：
Surface cleaning processing first is carried out to damaged concrete structural surface, further according to the polymer mortar material property of preparation
Con trolling index combination concrete surface degree of roughness is repaired, and thickness 3-15mm is repaired, when repair layer is more than 15mm layereds
Embedding benefit；
(3) interfacial adhesion layer：
One layer of polymeric slurries are coated in dry washcoat as boundary layer, are mixed with base with increasing mending mortar
The cohesive force for coagulating soil, before slurries are not dry, making polymer mending mortar；The polymer slurries are natural by being removed in the mortar
Other components are formulated in proportion outside color sand；
(4) preparation of mending mortar：
According to the ratio, it after natural colour sand, modified epoxy, inorganic nano-particle, plasticizer and anti-aging agent being prepared, carries out
Water-bath deaeration obtains component A；
The inorganic nano-particle carries out surface modification by following methods,
1) a certain amount of nano inoganic particle is weighed, 70 DEG C of drying 30min are blended, blend with coupling agent solution
Ultrasonic wave disperses 30-40min, and 80 DEG C are dried to nano-particle quality and no longer change,
2) stop heating, be cooled to room temperature, discharge, be sealed；
According to the ratio, after phenolic aldehyde amine, polyetheramine, curing accelerator being prepared, water-bath deaeration is carried out, obtains B component；
(5) it after mixing A, B component according to weight proportion, is then added in slip form paver and accounts for modified epoxy weight
It measures the epoxy resin antifoaming agent than 0.1~0.5% and carries out quickly 5~10min of stirring, obtain polymer mortar；It is spread out using sliding formwork
Polymer mortar is layered on the concrete primary surface after non-fragment orbit cleaning by paving machine, is carried out with mortar trowelling machine after gel 30min
Surfacing is handled；
(6) spontaneous curing or qualified through Site Detection, restores high ferro operation.
In above-mentioned steps (6), the spontaneous curing is：Under room temperature and normal humidity, polymer mortar is after 1-2 hours
Surface drying can be fully cured after 6 hours；It under normal circumstances, can open to traffic after glue-line is fully cured；In special circumstances,
It also can open to traffic after mending mortar surface drying.
The present invention has following main advantage relative to traditional polymer matrix mortar.
1. polymer mortar uses aliphatic glycidyl ether reactive diluent, ring is carried in the diluent molecule structure
Oxygen groups, in epoxy resin cure cross-linking process, moreover it is possible to be incorporated in epoxy resin cure network, increase the deformable of network
Property, there is good dilution toughening effect, while improving epoxy resin adhesive property, and the curing rate of epoxy adhesive declines
It is seldom, avoid generated in mortar solidification process get angry, hollowing the problem of.
2. using the hole after mortar solidification is greatly reduced based on the natural colour sand that maximum density curve theory Scientific Grade is matched
Gap rate improves the durability of mending mortar, reduces cementitious matter additive amount, at the same have anticorrosive, acid and alkali-resistance, it is uprising shine,
The features such as non-discolouring.Mortar its brittleness, the shrinkage matched relative to single-stage substantially reduce, and natural colour sand can be wanted according to difference
Carry out colour match is asked, while playing the role of beautifying the environment.
3. in order to improve the curing rate of polymer mortar, the present invention is using the big methylol epoxy resin of activity, the ring
Oxygen resin can be low-temperature fast-curing, can be used in mixed way with epoxy resin, can do the epoxy resin mortar that room temperature uses admittedly and under subzero temperature soon,
The construction operation promptly repaired suitable for Various Seasonal concrete works.
4. alternate freezing and thawing can reduce the performance of cement concrete, it is interconnected without what suction discharged water inside this polymer mortar
Pore structure, in casting process because gap caused by air be all isolate, it is discontinuous.This polymer mortar is carried out
300 times Frozen-thawed cycled does not find mass loss.
5. the curative systems that the invention polymer mortar is compounded using two kinds of modified fatty amines, modified fatty amine are
Phenolic aldehyde amine and polyetheramine, phenolic aldehyde amine substantially increase activity of curing reaction because introducing phenolic hydroxyl group in the molecular structure, shorten
Hardening time, relative to common its, small toxicity low with viscosity of fast curable type fatty amine, that compatibility is good, wellability is strong etc. is excellent
Point；Polyetheramine then has many advantages, such as that viscosity is low, irritation is small, compatibility is good, because introducing ehter bond in molecule, as curing agent
The toughness of epoxy resin cured product can be greatly improved, it is easy for construction.Two kinds of curing agent are used together, by adjusting respective addition
Amount, two kinds of curing agent play " synergistic effect ", play respective advantage, and obtaining one kind not only having high activity, but also can be significantly
Improve the Compositional type modified fatty amine curing agent of epoxy resin cured product toughness.
6. the present invention carries out toughening using the inorganic nano-particle being modified by surface to epoxy resin, relative to liquid rubber
Its cost of glue toughening substantially reduces, and is modified to inorganic nano-particle surface using titanate esters or silane coupling agent, forms nothing
The binder course of machine phase-coupling agent-organic phase, inorganic nano-particle powder are changed into parent through coupling agent treatment rear surface by hydrophily
Oiliness can both improve the compatibility with epoxy resin, while also reduce the agglomeration power between inorganic nanoparticles, improve it
Dispersibility in matrix and dispersion stabilization enhance the bonding force between polymer and filler, so that composite material is obtained preferably tough
Property intensity.The presence of inorganic nano-particle generates stress concentration effect, and easily the generation of initiation surrounding resin is crack splits, and absorbs certain
Work of deformation；The presence of inorganic particulate makes matrix resin crack propagation be obstructed and be passivated, and destructiveness will not occur for the final crackle that terminates
Cracking.After adding modified Nano particle in compound system, in impact process, some crazings are will appear on impact direction
Shape protrusion, these crazing shape protrusions can absorb a large amount of impact energy, to improve the toughness of resin cured matter.It is tested through the author,
With nano particle modified epoxy resin, its impact strength can be improved 70% or more, and the impact fracture surface of electron-microscope scanning shows inorganic nano
Particle can obtain evenly dispersed in resin matrix, and nano-particle a large amount of crazings mutually occurs with surrounding basal body interface.
In short, polymer mortar provided by the invention has, good impermeability, low-temperature setting speed be fast, backfin ratio
Low, the features such as low temperature flexibility is good, shock resistance is good, adhesion strength is high, freeze-thaw resistance is good, durability is good, according to the resistance to jelly of JG/T coatings
Melt circulation experiment, the mortar low temperature be reduced to -40 DEG C under the conditions of by 10 times cycle do not occur dusting, cracking, bubble, peeling and
The phenomenon that surface layer changes colour, the chromogen bonded polymer mortar construction is simple fast, not by bridge floor geometrical factor are restricted, and are not only suitable for
Scene is manually blended and paves, and slip-form paver can also be used and carry out live rapid preparing and pave.Foundation《Epoxy sand
Starch technical regulation》Under 5 DEG C or more ambient temperatures, the polymer mortar gel time be 20-60min, 24 hours
Reach flexural strength >=30MPa, compression strength >=80MPa, backfin ratio ＜ 3.The mortar is highly practical, is suitable for extremely frigid zones
The Rapid-Repair of concrete layer freeze thawing dusting between high ferro trackless tiny fragments of stone, coal, etc. road, can be also widely applied to manhole sink, highway tunnel
The damage revamping of road surface and bridge floor, airport concrete road surface etc..
Specific implementation method
The present invention relates to a kind of high tenacity, freeze thawing resistance Rapid-Repair polymer mortar and its construction method, the polymerizations
Object mortar has good high tenacity, high bond strength, shock resistance, rapid curing, low-shrinkage, durability is good, freeze-thaw resistance is good etc.
Characteristic, for the urgent repairing of concrete structure between extremely frigid zones high ferro non-fragment orbit, the mortar material gel time is short, flexible
Property it is good, durability is good, while manufacture craft is simple, moderate cost, can be widely applied to that the temperature difference such as high and cold, high temperature are big, and weather is multiple
The road surface dusting and dry and cracked reparation in miscellaneous area, apply also for sagging manhole, freeway tunnel road surface and bridge floor, airport
The damage revamping of concrete road surface etc..Rapid-Repair and the reinforcing of the concrete layers such as dykes and dams, house are can be also widely applied to, grouting is filled out
Seam, the fields such as terrace laying.It also can require gel time adjustable according to specifically used simultaneously.
With reference to embodiment, the invention will be further described, but is not limited to the following content.
Embodiment 1：
1) preparation of component A：By 100 parts of modified epoxy, 15 parts of butyl glycidyl ether, dibutyl phthalate
10 parts, 4 parts of inorganic nano-particle calcium carbonate, 0.1 part of anti-aging agent p-phenylenediamine, sequentially add and stir 10-15min in reaction kettle,
It is eventually adding 400 parts of natural colour sand, stirs 30min, water-bath deaeration is to get component A, packing and storing.
2) preparation of B component：By 10 parts of phenolic aldehyde amine, 30 parts of polyetheramine, 5 parts of altax P-30, it is added in reaction kettle and stirs
5-10min is mixed, water-bath deaeration is up to B component, packing and storing.
3) preparation of polymer mortar：Two component of A, B is put into agitator, 0.1 part of epoxy resin antifoaming agent carries out
Quickly stirring 10min, that is, obtain the polymer mortar, and the polymer mortar is with with with ensureing to be finished with postponing 30min.
5) uniformly mixed polymer mortar is layered on the concrete primary surface after non-fragment orbit cleaning using construction by hand,
After gel 30min surfacing processing is carried out with mortar trowelling machine.
6) under room temperature and normal humidity, after 1-2 hours can surface drying, can be fully cured after 6 hours.Under normal circumstances,
It can let pass after glue-line is fully cured.In special circumstances, it can also let pass after mending mortar surface drying.
7) Site Detection.According to TB/T2965-2011《Railway concrete bridge floor waterproof layer technical conditions》, Harbin-to-Dalian visitor specially
《Renovate fish tail and waterproof layer concrete dusting experiment, scientific research scheme》It carries out.
On the basis of the studies above, according to engineering requirements, research herein has been made a kind of and being suitable for extremely frigid zones height
Dusting fast repairing concrete polymer mortar material between iron non-fragment orbit, it is proposed that corresponding construction technology, and applied
In Practical Project, engineering practice shows that the construction technology is simple and feasible.Fieldtesting results show polymer mortar layer not
It is Nian Jie with concrete substrate secured in the case of increasing bridge floor load, and excellent antidetonation and anti-skid wearable performance are shown, it reaches
Expected effect is arrived.After the Frozen-thawed cycled in winter and the test that is open to traffic of half a year, concrete surface polymer mortar
Layer is generated without phenomena such as delamination, pit-hole, cracking, and operation conditions is good.
Embodiment 2-8, the preparation process such as embodiment 1 of mortar each component change portions additive in polymer mortar
Type and materials.
Example 2：Modified epoxy, natural colour sand, phenolic aldehyde amine, polyetheramine, DMP-30, butyl glycidyl ether, diformazan
Benzene, epoxy resin antifoaming agent, p-phenylenediamine.Its proportioning is followed successively by 100 in parts by weight:500:15:20:4:10:20:0.3:
0.1, test result is shown in Table 1.
Example 3：Modified epoxy, river sand, phenolic aldehyde amine, Versamid, DMP-30, butyl glycidyl ether, two
Toluene, epoxy resin antifoaming agent, p-phenylenediamine.Its proportioning is followed successively by 100 in parts by weight:350:15:20:4:10:20:0.3:
0.1, test result is shown in Table 1.
Example 4：Modified epoxy, basalt, phenolic aldehyde amine, polyetheramine, DMP-30, butyl glycidyl ether, adjacent benzene two
Formic acid dioctyl ester, epoxy resin antifoaming agent, p-phenylenediamine.Its proportioning is followed successively by 100 in parts by weight:500:15:20:4:10:
20:0.3:0.1, test result is shown in Table 1.
Example 5：Modified epoxy, natural colour sand, phenolic aldehyde amine, polyetheramine, DMP-30, benzyl glycidyl ether, adjacent benzene
Diformazan dioctyl phthalate, epoxy resin antifoaming agent, p-phenylenediamine.Its proportioning is followed successively by 100 in parts by weight:500:20:20:4:
10:20:0.3:0.1, test result is shown in Table 1.
Example 6：Modified epoxy, natural colour sand, phenolic aldehyde amine, polyetheramine, DMP-30, benzyl glycidyl ether, adjacent benzene
Diformazan dioctyl phthalate, epoxy resin antifoaming agent, p-phenylenediamine.Its proportioning is followed successively by 100 in parts by weight:600:15:20:4:
10:20:0.3:0.1, test result is shown in Table 1.
Example 7：Modified epoxy, basalt, phenolic aldehyde amine, polyetheramine, DMP-30, butyl glycidyl ether, adjacent benzene two
Formic acid dioctyl ester, epoxy resin antifoaming agent, p-phenylenediamine.Its proportioning is followed successively by 100 in parts by weight:450:15:20:4:10:
20:0.3:0.1, test result is shown in Table 1.
Embodiment 8：Modified epoxy, natural colour sand, phenolic aldehyde amine, Versamid, DMP-30, butyl glycidyl
Ether, dioctyl phthalate, epoxy resin antifoaming agent, p-phenylenediamine.Its proportioning is followed successively by 100 in parts by weight:550:15:
20:4:10:20:0.3:0.1, test result is shown in Table 1.
The polymer mortar of Rapid-Repair made from above-described embodiment, mixed by the extremely frigid zones of representative of the high iron wire of Harbin-to-Dalian
It is applied in solidifying soil surface Rapid-Repair or other concrete works emergency maintenances.Other concrete works refer under manhole
It falls into, the damage revamping of freeway tunnel road surface and bridge floor, airport concrete road surface etc..
The performance test of the polymer mortar of Rapid-Repair made from above-described embodiment is with reference to TB/T2965-2011《Railway
Waterproofing Layer for Concrete Bridge Deck technical conditions》, Harbin-to-Dalian visitor specially《Renovate fish tail and waterproof layer concrete dusting experiment, scientific research scheme》、DL/
T5193-2004《Epoxy resin mortar technical regulation》Relevant regulations execute.
The main performance of 1 quick patching material for cement concrete pavement of table.
Claims (5)
1. a kind of polymer mortar of Rapid-Repair, it is characterized in that using natural colour sand as primary raw material, modified epoxy is glue
Ramming material, Compositional type modified fatty amine are curing agent, using inorganic nano-particle as toughening filler, then add auxiliary agent, prepare in proportion
It forms；It counts in parts by weight, specific proportioning is：
300~600 parts of natural colour sand, 70~100 parts of modified epoxy, 30~60 parts of Compositional type modified multicomponent amine are inorganic to receive
2~10 parts of rice corpuscles, 1~10 part of curing accelerator, 10-30 parts of plasticizer, 10~20 parts of diluent, epoxy resin antifoaming agent
0.1~0.5 part, 0.1~0.5 part of anti-aging agent；
The modified epoxy is methylol bisphenol A type epoxy resin, and viscosity is 25- when epoxide number >=0.45,40 DEG C
60Pa ﹒ s, 23~27 DEG C of softening temperature；
The Compositional type modified multicomponent amine hardener is the mixture of phenolic aldehyde amine and polyetheramine, and mixed weight ratio is 1~3：2
~1；Phenolic aldehyde amine wherein used be using phenol, formaldehyde, aliphatic cyclic amine as the third generation phenolic aldehyde amine of raw material, amine value be 440~
520mgKOH/g, viscosity 2000-4000mPas at 25 DEG C；Polyetheramine used is simple function, difunctionality, trifunctional polyetheramine
One or more kinds of mixtures, amine value is 200~500mgKOH/g, viscosity≤400mPas at 25 DEG C；
The natural colour sand, by 5~20 mesh, 20~40 mesh, 40~80 mesh, 80~100 mesh, 100~200 mesh and≤200
Purpose quartz sand is compounded and is obtained, and the quartz sand accordingly compounds weight percent and is respectively：10~35%, 15~25%, 10~
20%, 5~15%, 5~20%, 20~45%；
The inorganic nano-particle is by coupling agent modified Paris white or silica, grain size 40-60nm；Institute
It is one kind in titanate esters or Silane coupling agent KH550, KH560 to state coupling agent；
The diluent is one kind in butyl glycidyl ether, benzyl glycidyl ether.
2. the polymer mortar of Rapid-Repair as described in claim 1, it is characterised in that the curing accelerator is DMP-
30, one kind in benzyl diamines, phenol.
3. the application of the polymer mortar of Rapid-Repair described in claims 1 or 2, it is characterized in that in extremely frigid zones high ferro without tiny fragments of stone, coal, etc. rail
The promptly application in repairing of road dusting concrete, or sink in manhole, freeway tunnel road surface and bridge floor, airport it is mixed
Application in the Rapid-Repair of solidifying soil surface breakage.
4. the application of the polymer mortar of Rapid-Repair according to claim 3, it is characterized in that being constructed using following methods：
(1) design mixture proportion：
According to the requirement of concrete works specific feature and repairing technique, prepared polymer mortar；
(2) base treatment is repaired：
Surface cleaning processing first is carried out to damaged concrete structural surface, is controlled further according to the polymer mortar material property of preparation
Index combination concrete surface degree of roughness is repaired, and thickness 3-15mm is repaired, when repair layer is more than the embedding benefit of 15mm layereds；
(3) interfacial adhesion layer：
One layer of polymeric slurries are coated in dry washcoat as boundary layer, to increase mending mortar and substrate concrete
Cohesive force, before slurries are not dry, making polymer mending mortar；The polymer slurries are by removing natural colour sand in the mortar
Outer other components configure in proportion；
(4) preparation of mending mortar：
According to the ratio, after natural colour sand, modified epoxy, inorganic nano-particle, plasticizer and anti-aging agent being prepared, water-bath is carried out
Deaeration obtains component A；
The inorganic nano-particle carries out surface modification by following methods,
1) a certain amount of nano inoganic particle is weighed, 70 DEG C of drying 30min are blended, blend ultrasound with coupling agent solution
Wavelength-division dissipates 30-40min, and 80 DEG C are dried to nano-particle quality and no longer change,
2) stop heating, be cooled to room temperature, discharge, be sealed；
According to the ratio, after phenolic aldehyde amine, polyetheramine, curing accelerator being prepared, water-bath deaeration is carried out, obtains B component；
(5) it after mixing A, B component according to weight proportion, is then added in slip form paver and accounts for modified epoxy weight ratio
0.1~0.5% epoxy resin antifoaming agent carries out quickly 5~10min of stirring, obtains polymer mortar；Utilize slip form paver
Polymer mortar is layered on the concrete primary surface after non-fragment orbit cleaning, carries out surface with mortar trowelling machine after gel 30min
Smooth processing；
(6) spontaneous curing or qualified through Site Detection, restores high ferro operation.
5. the application of the polymer mortar of Rapid-Repair according to claim 4, it is characterised in that in step (6), it is described from
So curing is：Under room temperature and normal humidity, polymer mortar after 1-2 hours can surface drying, can be fully cured after 6 hours；Just
It, can open to traffic after glue-line is fully cured in the case of often；It in special circumstances, also can open to traffic after mending mortar surface drying.
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| CN113882209A (en) * | 2021-11-05 | 2022-01-04 | 广东彩居建筑工程有限公司 | Micropore ecological cast-in-place pavement system surface layer and pavement construction method |
| CN114704185A (en) * | 2022-04-07 | 2022-07-05 | 李国永 | Suit door and preparation process thereof |
| CN115073211B (en) * | 2022-06-27 | 2023-05-23 | 浙江大学杭州国际科创中心 | Nanometer enhanced penetration hardening agent and preparation method thereof |
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