CN109629842A - A kind of restorative procedure of status concrete structure breakage - Google Patents
A kind of restorative procedure of status concrete structure breakage Download PDFInfo
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- CN109629842A CN109629842A CN201811503541.0A CN201811503541A CN109629842A CN 109629842 A CN109629842 A CN 109629842A CN 201811503541 A CN201811503541 A CN 201811503541A CN 109629842 A CN109629842 A CN 109629842A
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- epoxy
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- water
- paint
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
Abstract
A kind of restorative procedure of status concrete structure breakage, the present invention relates to construction engineering technical fields；Base treatment；Brushing aqueous infiltrating epoxy primer: twice of epoxy primer of brushing aqueous infiltrating, next process is carried out after doing solid work within room temperature lower 24 hours；Brushing aqueous infiltrating epoxy intermediate layer paint: roller of brushing or become mildewed using hairbrush is brushed colored aqueous infiltrating epoxy intermediate layer paint one time with carrying out the uniform exhaustive of roller coating, carries out next process after doing solid work within room temperature lower 24 hours；Brushing nanometer face applies.Its is easy to operate, and the concrete structure after repairing meets intensity requirement, and repairs surface architectonic beauty and see, and with status concrete structure without abnormal, the practicality is stronger.
Description
Technical field
The present invention relates to construction engineering technical fields, and in particular to a kind of restorative procedure of status concrete structure breakage.
Background technique
Reinforced concrete structure refers to the structure made of the concrete equipped with reinforcing bar enhancing.The main member of load-bearing is to use
What armored concrete was built.Including shell structure, large form cast-in-place structural and use the armored concrete of the construction such as sliding formwork, lift slab
The building of structure.A kind of structure made of reinforcing bar and concrete.Reinforcing bar bears pulling force, concrete bearing compressive force.With heavily fortified point
Solid, durable, fire protecting performance is good, than steel construction save steel and it is at low cost the advantages that.
Concrete structure is by after long-term be exposed in air, it may appear that the phenomenon that parts against wear, needs a kind of simple
Easy-operating method for repairing and mending repairs the damaged part of status concrete structure.
Summary of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of structure is simple, design rationally, make
Easy to operate with the restorative procedure of convenient status concrete structure breakage, the concrete structure after repairing, which meets intensity, to be wanted
It asks, and repairs surface architectonic beauty and see, with status concrete structure without abnormal, the practicality is stronger.
To achieve the above object, the technical solution adopted by the present invention is that: its operating procedure is as follows:
1, base treatment:
1.1, concrete structure is carefully investigated, confirms its surface degree of disease；
1.2, polishing comprehensively: polishing to matrix surface with electronic steel sand wheel, removes the rusty stain on surface, floats ash, is weathered layer, residual
The pollutants such as slurry；It is washed down with compressed air, clear water or removes floating dust with rag, degreased with dimethylbenzene, with 5~10% fluorine
Magnesium silicate or bleaching powder aqueous solution clean mould；
1.3, concrete defect is handled: first being cut defect surface layer faulty concrete, until exposing fresh, closely knit mixed
Solidifying soil rejects the surface float stone of repairing faying face, and dabbing chipping repairs faying face, so that its is uniform, and to exposed
Rebar surface carries out artificial processing of rust removing；Repairing faying face is cleaned with high-pressure jet technology again, then blots Free water with gauze；
After for 24 hours, pave epoxy resin mortar, firmly flattens troweling；The finally quadric-plastering after 30min, so that surfacing, surrounding should be smeared
It is flat；
1.4, measure moisture content: basic moisture content is less than 6%；
2, it brushing aqueous infiltrating epoxy primer: twice of epoxy primer of brushing aqueous infiltrating, does solid work within room temperature lower 24 hours laggard
Row next process；
3, brushing aqueous infiltrating epoxy intermediate layer paint: roller is brushed or become mildewed using hairbrush with carrying out the uniform exhaustive of roller coating
It brushes colored aqueous infiltrating epoxy intermediate layer paint one time, carries out next process after doing solid work within room temperature lower 24 hours；
4, brushing nanometer face applies:
4.1, it stocks up: first being shaken up component A and B component in respective bucket respectively using preceding, apply component A matter according still further to face
Amount: face applies B component quality 3:1, and face painting B component is poured slowly into face and is applied in component A；It can after standing 3 hours after mixing
It uses, must be stirred again before brushing；
4.2, coating is constructed: using brushing, roller coating and spraying method, protected material charging basket is paid attention in work progress, it must not
It is splashed into any foreign matter such as moisture, greasy dirt；Coating is carried out first with brushing, that is, lateral, perpendicular using the soft brush of wool of not hair loss
It is brushed to intersection, uniformly without holiday；It recycles the mode of roller coating to carry out coating, i.e., is rolled using the undercoat wool of not hair loss
Cylinder laterally, vertically intersects and is brushed, uniformly without holiday；Coating is finally carried out in the way of spraying, that is, selection 1.5-2.0
Bore spray gun, 4-6kg air pressure carry out even application, exhaustive；
4.3, nano coating maintenance, examination:
4.3.1, conserve: (25 DEG C) 2 hours surface dryings under room temperature are done solid work for 24 hours, and doing solid work in the phase must not contact with water, and 14 days
It is fully cured, strong acid, highly basic must not be contacted in curing period, not handy hard rag is cleaned；
4.3.2, check and accept: checking and accepting film-formation result, paint film is uniform, nail is drawn without scar, drips and tests droplet in film coated surface
It is shrunk to water droplet rapidly.
Further, specific step is as follows for the epoxy resin mortar that paves in the step 1.3:
1.3.1, by quartz sand (40~80 mesh): 425 portland cements ratio 3:1 by weight mixing stirs evenly；
1.3.2, according to epoxy A: epoxy B: water=1:1.5:3 weight ratio matches epoxy, that is, first pour into epoxy B component
(curing agent), then epoxy component A is poured into, epoxy A, B component are stirred evenly according to the ratio, a small amount of water is then added and stirs to epoxy
Melt completely, then remaining water is added while stirring；
1.3.3, the mixture for pouring into sand and cement, stirs evenly, and the weight ratio of each ingredient the following is epoxy A: epoxy B:
Water: quartz sand: cement=1:1.5:3:24:8 (answer smooth, and surrounding should smooth out, after repairing in 24 hours not by mortar repairing rear surface
It can be drenched with rain, epoxy resin mortar suggests being finished in 1 hour after preparing).
Further, twice of brushing construction interval time is 24 hours in the step 2, i.e., primary to complete 24 hours
Afterwards, judged using droplet test, droplet drop should have as droplet is dripped in concrete surface in concrete surface without obvious infiltration
Obvious infiltration, then brush infiltration priming paint again.
Further, the priming paint A group that the aqueous infiltrating epoxy primer in the step 2 is 1:1.5:3.5 by weight ratio
Divide (resin), priming paint B component (curing agent), water to be made, first stirs priming paint component A (resin), priming paint B component (curing agent)
Mix uniformly, then plus water after mixing evenly (about the 25% of total Water), is eventually adding remaining water on a small quantity, it is stirring while adding.
Further, the middle paint component A for being 1:3:1.2 by weight ratio is painted in the aqueous infiltrating epoxy in the step 3
(resin), middle paint B component (curing agent), water are made, and paint component A (resin) middle first, the stirring of middle paint B component (curing agent) are equal
It is even, water is added, is stirred evenly.
After above-mentioned technique, the invention has the following beneficial effects: a kind of status concrete structure breakage of the present invention
Restorative procedure, easy to operate, the concrete structure after repairing meets intensity requirement, and repairs surface architectonic beauty and see, with status
Concrete structure is without the advantages that abnormal, the practicality is stronger, and the present invention has structure simple, and setting is reasonable, low manufacture cost.
Specific embodiment
Present embodiment the technical solution adopted is that: its operating procedure is as follows:
1, (cleannes of substrate surface, flatness and the moisture content of base and alkalinity etc. are to influence to repair to base treatment
The key of construction quality, therefore answer strict control；Substrate surface is dealt with improperly, be will lead to coating foaming, hollowing, is stuck up skin, is de-
Fall):
1.1, concrete structure is carefully investigated, confirms its surface degree of disease；
1.2, polishing comprehensively: polishing to matrix surface with tools such as electronic steel sand wheels, removes rusty stain, the floating ash, wind on surface
Change the pollutants such as layer, residual slurry；Concrete structural surface must be clean, no floating dust, greasy dirt, mould etc.；Compressed air, clear water can be used
It washes down or removes floating dust with rag, degreased with dimethylbenzene or other detergent, magnesium fluosilicate or bleaching with 5~10%
Amidin cleans mould；
1.3, concrete defect is handled: first being cut defect surface layer faulty concrete, until exposing fresh, closely knit mixed
It is solidifying native, the surface float stone of repairing faying face (surface after cutting) is rejected, and dabbing chipping repairs faying face, so that its neat stroke
One, and artificial processing of rust removing is carried out to exposed rebar surface；Repairing faying face is cleaned with high-pressure jet technology again, then uses yarn
Cloth blots Free water；After for 24 hours, pave epoxy resin mortar, firmly flattens troweling；The finally quadric-plastering after 30min, so that surface is flat
Whole, surrounding should smooth out, and specific step is as follows for the above-mentioned epoxy resin mortar that paves:
1.3.1, by quartz sand (40~80 mesh): 425 portland cements ratio 3:1 by weight mixing stirs evenly, can also
It is stand-by that powder is stirred in advance；
1.3.2, according to epoxy A, (ingredient is resin, and the quasi polymer containing more than two epoxy groups in molecule is
The polycondensation product of epoxychloropropane and bisphenol-A or polyalcohol): epoxy B: water=1:1.5:3 weight ratio matches epoxy, that is,
Epoxy B component (curing agent) is first poured into, then pours into epoxy component A, epoxy A, B component are stirred evenly according to the ratio, are then added
A small amount of water is stirred to epoxy to be melted completely, then remaining water is added while stirring；
1.3.3, the mixture for pouring into sand and cement, stirs evenly, and the weight ratio of each ingredient the following is epoxy A: epoxy B:
Water: quartz sand: cement=1:1.5:3:24:8 (answer smooth, and surrounding should smooth out, after repairing in 24 hours not by mortar repairing rear surface
It can be drenched with rain, epoxy resin mortar suggests being finished in 1 hour after preparing)；
1.4, measure moisture content: basic moisture content is less than 6%；
2, brushing aqueous infiltrating epoxy primer: twice of epoxy primer of painted concrete special-purpose aqueous infiltration, twice of brushing are applied
Work interval time is 24 hours, i.e., after primary completion 24 hours, is judged that droplet is dripped in concrete surface using droplet test
There should be obvious infiltration without obvious infiltration in concrete surface as droplet is dripped, then brush infiltration priming paint again；It does solid work within room temperature lower 24 hours
After carry out next process；Above-mentioned aqueous infiltrating epoxy primer is by the priming paint component A (resin) that weight ratio is 1:1.5:3.5, bottom
Paint B component (curing agent), water are made, and first stir evenly priming paint component A (resin), priming paint B component (curing agent), then plus few
It measures water after mixing evenly (about the 25% of total Water), is eventually adding remaining water, it is stirring while adding；
3, brushing aqueous infiltrating epoxy intermediate layer paint: roller is brushed or become mildewed using hairbrush with carrying out the uniform exhaustive of roller coating
It brushes colored aqueous infiltrating epoxy intermediate layer paint one time, carries out next process after doing solid work within room temperature lower 24 hours；It is above-mentioned aqueous
It paints in infiltration epoxy and is made of weight ratio of the middle paint component A (resin), middle paint B component (curing agent), water of 1:3:1.2, first
Middle paint component A (resin), middle paint B component (curing agent) stir evenly, and add water, stir evenly；
4, brushing nanometer face applies:
4.1, it stocks up: first being shaken up component A and B component in respective bucket respectively using preceding, apply component A matter according still further to face
Amount: face applies B component quality 3:1, and face painting B component is poured slowly into face and is applied in component A (can't reverse operating)；After mixing
Standing 3 hours rears can be used, and must stir again before brushing；Primary batching system should not be excessive, single worker's single construction ingredient
1-2kg is advisable；
4.2, coating is constructed: using brushing, roller coating and spraying method, protected material charging basket is paid attention in work progress, it must not
It is splashed into any foreign matter such as moisture, greasy dirt；Coating is carried out first with brushing, that is, lateral, perpendicular using the soft brush of wool of not hair loss
It is brushed to intersection, uniformly without holiday；The not reproducible use of wool brush.It recycles the mode of roller coating to carry out coating, that is, uses
The not undercoat wool roller of hair loss laterally, vertically intersects and is brushed, uniformly without holiday.The not reproducible use of wool roller.；
Coating is finally carried out in the way of spraying, that is, selection 1.5-2.0 bore spray gun, 4-6kg air pressure carry out even application, nothing left
Leakage；After the completion of construction, reusing for spray gun is influenced in order to avoid causing to block with the thorough cleaning spray gun of n-butanol；In work progress
Any foreign matter such as moisture and greasy dirt must not be splashed into；If you need to second time coating of constructing, should after first pass is constructed and is completed 0.5 hour, 6
It is carried out in hour；Such as more than 6 hours, then needing equal coatings that (14 days) rear is fully cured can be carried out second time brushing.
4.3, nano coating maintenance, examination:
4.3.1, conserve: (25 DEG C) 2 hours surface dryings under room temperature are done solid work for 24 hours, and doing solid work in the phase must not contact with water, and 14 days
It is fully cured, strong acid, highly basic must not be contacted in curing period, not handy hard rag is cleaned；
4.3.2, check and accept: checking and accepting film-formation result, paint film is uniform, nail is drawn without scar, drips and tests droplet in film coated surface
It is shrunk to water droplet rapidly.
After above-mentioned technique, present embodiment has the beneficial effect that a kind of status described in present embodiment
The restorative procedure of concrete structure breakage, easy to operate, the concrete structure after repairing meets intensity requirement, and repairs surface
Structure is beautiful, and with status concrete structure without abnormal, the practicality is stronger, and the present invention has structure simple, setting rationally, production
The advantages that at low cost.
The above is only used to illustrate the technical scheme of the present invention and not to limit it, and those of ordinary skill in the art are to this hair
The other modifications or equivalent replacement that bright technical solution is made, as long as it does not depart from the spirit and scope of the technical scheme of the present invention,
It is intended to be within the scope of the claims of the invention.
Claims (5)
1. a kind of restorative procedure of status concrete structure breakage, it is characterised in that: its operating procedure is as follows:
(1), base treatment:
(1.1), concrete structure is carefully investigated, confirms its surface degree of disease；
(1.2), polishing comprehensively: polishing to matrix surface with electronic steel sand wheel, removes rusty stain, the floating ash, weathered layer, residual slurry on surface
Equal pollutants；It is washed down with compressed air, clear water or removes floating dust with rag, degreased with dimethylbenzene, with 5~10% fluorine silicon
Sour magnesium or bleaching powder aqueous solution clean mould；
(1.3), concrete defect is handled: first being cut defect surface layer faulty concrete, until exposing fresh, closely knit coagulation
Soil rejects the surface float stone of repairing faying face, and dabbing chipping repairs faying face, so that its is uniform, and to exposed steel
Muscle surface carries out artificial processing of rust removing；Repairing faying face is cleaned with high-pressure jet technology again, then blots Free water with gauze；
After for 24 hours, pave epoxy resin mortar, firmly flattens troweling；The finally quadric-plastering after 30min, so that surfacing, surrounding should be smeared
It is flat；
(1.4), measure moisture content: basic moisture content is less than 6%；
(2), it brushing aqueous infiltrating epoxy primer: twice of epoxy primer of brushing aqueous infiltrating, is carried out after doing solid work within room temperature lower 24 hours
Next process；
(3), brushing aqueous infiltrating epoxy intermediate layer paint: roller of brushing or become mildewed using hairbrush applies with carrying out the uniform exhaustive of roller coating
It brushes colored aqueous infiltrating epoxy intermediate layer paint one time, carries out next process after doing solid work within room temperature lower 24 hours；
(4), brushing nanometer face applies:
(4.1), it stocks up: first being shaken up component A and B component in respective bucket respectively using preceding, apply component A quality according still further to face:
Face applies B component quality 3:1, and face painting B component is poured slowly into face and is applied in component A；It can make after standing 3 hours after mixing
With, must be stirred again before brushing；
(4.2), coating is constructed: using brushing, roller coating and spraying method, being paid attention to protected material charging basket in work progress, must not be splashed
Enter any foreign matter such as moisture, greasy dirt；Coating is carried out first with brushing, that is, using the soft brush of wool of not hair loss, laterally, vertically
Intersection is brushed, uniformly without holiday；It recycles the mode of roller coating to carry out coating, that is, uses the undercoat wool roller of not hair loss,
Laterally, vertical intersection is brushed, uniformly without holiday；Coating is finally carried out in the way of spraying, that is, 1.5-2.0 mouthfuls of selection
Diameter spray gun, 4-6kg air pressure carry out even application, exhaustive；
(4.3), nano coating maintenance, examination:
(4.3.1), maintenance: the lower 2 hours surface dryings of room temperature are done solid work for 24 hours, and doing solid work in the phase must not contact with water, and 14 days completely solid
Change, strong acid, highly basic must not be contacted in curing period, not handy hard rag is cleaned；
(4.3.2), it checks and accepts: checking and accepting film-formation result, paint film is uniform, nail is drawn without scar, and dripping, it is fast in film coated surface to test droplet
Speed is shrunk to water droplet.
2. a kind of restorative procedure of status concrete structure breakage according to claim 1, it is characterised in that: the step
Suddenly specific step is as follows for the epoxy resin mortar that paves in (1.3):
(1.3.1), by quartz sand: 425 portland cements ratio 3:1 by weight is mixed, and is stirred evenly；
(1.3.2), according to epoxy A: epoxy B: water=1:1.5:3 weight ratio matches epoxy, that is, epoxy B component is first poured into, then
Epoxy component A is poured into, epoxy A, B component are stirred evenly according to the ratio, a small amount of water is then added and stirs to epoxy and melts completely, then
Remaining water is added while stirring；
(1.3.3), the mixture for pouring into sand and cement, stirs evenly, and the weight ratio of each ingredient the following is epoxy A: epoxy B: water:
Quartz sand: cement=1:1.5:3:24:8.
3. a kind of restorative procedure of status concrete structure breakage according to claim 1, it is characterised in that: the step
Suddenly twice of brushing construction interval time is 24 hours in (2), i.e., after primary completion 24 hours, is judged using droplet test,
Droplet drop should have obvious infiltration in concrete surface as droplet is dripped, then brush infiltration bottom again in concrete surface without obvious infiltration
Paint.
4. a kind of restorative procedure of status concrete structure breakage according to claim 1, it is characterised in that: the step
Suddenly the aqueous infiltrating epoxy primer in (2) is made of weight ratio of the priming paint component A, priming paint B component, water of 1:1.5:3.5, first
Priming paint component A, priming paint B component are stirred evenly, then plus water after mixing evenly, is eventually adding remaining water on a small quantity, side edged stirs
It mixes.
5. a kind of restorative procedure of status concrete structure breakage according to claim 1, it is characterised in that: the step
Suddenly in the aqueous infiltrating epoxy in (3) paint be made of weight ratio of the middle paint component A, middle paint B component, water of 1:3:1.2, first in
Paint component A, middle paint B component stir evenly, and add water, stir evenly.
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Cited By (1)
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| CN110204257A (en) * | 2019-05-21 | 2019-09-06 | 于世强 | A kind of oil-pump base repairing binder |
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Application publication date: 20190416 |
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