CN109336525B - A kind of Bridge Crack repair materials and preparation method thereof with selfreparing effect - Google Patents
A kind of Bridge Crack repair materials and preparation method thereof with selfreparing effect Download PDFInfo
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- CN109336525B CN109336525B CN201811119767.0A CN201811119767A CN109336525B CN 109336525 B CN109336525 B CN 109336525B CN 201811119767 A CN201811119767 A CN 201811119767A CN 109336525 B CN109336525 B CN 109336525B
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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
- 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
- C04B28/06—Aluminous cements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
- C04B2111/00672—Pointing or jointing materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Bridges Or Land Bridges (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of Bridge Crack repair materials with selfreparing effect, consist of the following compositions: Bo Naite, nano silica, sodium metasilicate, alumina silicate, anionic surfactant, sodium tripolyphosphate, sodium sulphate, aluminate cement and nano oxidized zinc-base pitch.It include the two different systems of organic-inorganic in repair materials, wherein nano oxidized zinc-base pitch, as organic system, main function is after use, still to have certain mobility in crack, to achieve the effect that selfreparing using its permeance property；And the main component of inorganic system is aluminate cement and Bo Naite, main function is and the combination of matrix；Sodium metasilicate, alumina silicate, sodium tripolyphosphate and sodium sulphate, which is added, can play the effect of solidification and crosslinking, to promote the compatible result of inorganic and organic two kinds of systems in material；And nanoscale silica is added, the filling effect of pitch can be promoted using nanoscale little particle.
Description
Technical field
The present invention relates to new material technology field more particularly to a kind of Bridge Crack repair materials with selfreparing effect
And preparation method thereof.
Background technique
Traditional Bridge Crack reparation uses mechanical means, such as constructs in other bridge external prestressing reinforcement and strengthenings
In, usually using materials such as deformed bar, steel strand wires, high tensile steel wires, external loads are offset to beam body by applying prestressing force
The internal force of generation improves its ultimate bearing capacity, inhibits the development in crack.Deformed bar, steel strand wires, high tensile steel wire self weight
Greatly, bridge self weight is increased, it is unfavorable to works ultimate bearing capacity.The method is not only at high cost, and difficulty of construction is big, right
Beam bridge itself also increases burden, to influence bridge service life.
Chinese invention patent CN106630926A discloses a kind of composite material of selfreparing Bridge Crack, and the material is main
Raw material are as follows: portland cement, sodium citrate, basalt fibre, MC120 curing agent powder, tetraethylenepentamine curing agent, quartz
Sand, sodium benzoate, phosphate, sulphur, oxychloride lithium part and epoxy resin；The composite material can apply repairing both macro and micro outside
Crack and it is interior mix prevention micro crack, effectively inhibit and mending concrete early stage and the later period occur microcrack and macrocrack,
Increase substantially the durability of concrete.But the material must be used cooperatively with matched laying device, at high cost, construction
It is inconvenient.Therefore the present invention provides a kind of Bridge Crack repair materials and preparation method thereof with selfreparing effect.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of Bridge Cracks with selfreparing effect to repair
Multiple material and preparation method thereof.
Technical scheme is as follows:
A kind of Bridge Crack repair materials with selfreparing effect, by following weight percent at being grouped as:
Bo Naite 0.2-0.5%
Nano silica 2-5%
Sodium metasilicate 1-3%
Alumina silicate 2-4%
Anionic surfactant 2-5%
Sodium tripolyphosphate 0.1-0.3%
Sodium sulphate 2-4%
Aluminate cement 8-15%
Nano oxidized zinc-base pitch surplus.
Preferably, the partial size of the nano silica is 20-50nm.
Preferably, the anionic surfactant is neopelex.
Preferably, the doping of nano zine oxide is 2-5% in the nano oxidized zinc-base pitch, further preferred
The doping of nano zine oxide is 3%.
Preferably, the preparation method of the Bridge Crack repair materials with selfreparing effect, comprising the following steps:
A, by Bo Naite, sodium metaaluminate, alumina silicate, anionic surfactant, sodium tripolyphosphate, sodium sulphate and aluminate
It is stirred evenly after cement mixing, crosses 200 meshes, obtain mixed-powder；
B, matrix pitch is heated to 170-180 DEG C, is proportionally added into nano zinc oxide particles, high-speed stirred obtains nanometer
Zinc oxide-base pitch；
C, mixed-powder is added in nano oxidized zinc-base pitch, stirring is to being uniformly dispersed；
D, in pitch, side stirring, while be slowly added to nano silica, stirring is to being uniformly dispersed.
The invention has the beneficial effects that:
Bo Naite is a kind of novel synthesis of densified refractory aggregate based on calcium hexaluminate (CA6) mineral facies.CA6 have with
Lower main performance: very high refractoriness；Solubility in iron content slag is low；It is steady in reducing atmosphere (such as carbon monoxide)
Qualitative height；Chemical stability in alkaline environment is good；(steel and non-ferrous metal) low to the wetability of molten metal and slag.
Bo Naite is applied in refractory material as aggregate to which the corrosion resistance for improving refractory material has obtained extensively
General report, but Bo Naite's is expensive, but Bo Naite is applied in highway material, rather than in refractory material not yet
It appears in the newspapers；The main function that Bo Naite is added in the present invention is because promoting the connection of aluminate cement and original bridge matrix
Intensity.
Bridge Crack repair materials with selfreparing effect of the invention, compared to the main region of traditional repair materials
It is not, includes the two different systems of organic-inorganic in material, wherein nano oxidized zinc-base pitch is as organic system, master
It acts on after use, still to there is certain mobility in crack, to reach the effect of selfreparing using its permeance property
Fruit, even if using still having repairing effect after 5 years；And the main component of inorganic system is aluminate cement and Bo Naite, master
Acting on is and the combination of matrix, the main function for being added Bo Naite in the present invention be because promoted aluminate cement with it is original
The bonding strength of bridge matrix；And sodium metasilicate, alumina silicate, sodium tripolyphosphate and sodium sulphate are added in material can play solidification
With the effect of crosslinking, to promote the compatible result of inorganic and organic two kinds of systems in material；And nanoscale titanium dioxide is added
Silicon can promote the filling effect of pitch using nanoscale little particle.
Specific embodiment
Embodiment 1:
A kind of Bridge Crack repair materials with selfreparing effect, by following weight percent at being grouped as:
Bo Naite 0.35%
Nano silica 2.5%
Sodium metasilicate 1.5%
Alumina silicate 3%
Anionic surfactant 4.5%
Sodium tripolyphosphate 0.25%
Sodium sulphate 3%
Aluminate cement 10%
Nano oxidized zinc-base pitch surplus.
The partial size of the nano silica is 20-50nm.
The anionic surfactant is neopelex.
The doping of nano zine oxide is 3% in the nano oxidized zinc-base pitch.
The preparation method of the Bridge Crack repair materials with selfreparing effect, comprising the following steps:
A, by Bo Naite, sodium metaaluminate, alumina silicate, anionic surfactant, sodium tripolyphosphate, sodium sulphate and aluminate
It is stirred evenly after cement mixing, crosses 200 meshes, obtain mixed-powder；
B, matrix pitch is heated to 175 DEG C, is proportionally added into nano zinc oxide particles, high-speed stirred obtains nano oxidized
Zinc-base pitch；
C, mixed-powder is added in nano oxidized zinc-base pitch, stirring is to being uniformly dispersed；
D, in pitch, side stirring, while be slowly added to nano silica, stirring is to being uniformly dispersed.
Embodiment 2:
A kind of Bridge Crack repair materials with selfreparing effect, by following weight percent at being grouped as:
Bo Naite 0.2%
Nano silica 5%
Sodium metasilicate 1%
Alumina silicate 4%
Anionic surfactant 2%
Sodium tripolyphosphate 0.3%
Sodium sulphate 2%
Aluminate cement 15%
Nano oxidized zinc-base pitch surplus.
The partial size of the nano silica is 20-50nm.
The anionic surfactant is neopelex.
The doping of nano zine oxide is 2% in the nano oxidized zinc-base pitch.
The preparation method of the Bridge Crack repair materials with selfreparing effect, comprising the following steps:
A, by Bo Naite, sodium metaaluminate, alumina silicate, anionic surfactant, sodium tripolyphosphate, sodium sulphate and aluminate
It is stirred evenly after cement mixing, crosses 200 meshes, obtain mixed-powder；
B, matrix pitch is heated to 180 DEG C, is proportionally added into nano zinc oxide particles, high-speed stirred obtains nano oxidized
Zinc-base pitch；
C, mixed-powder is added in nano oxidized zinc-base pitch, stirring is to being uniformly dispersed；
D, in pitch, side stirring, while be slowly added to nano silica, stirring is to being uniformly dispersed.
Embodiment 3:
A kind of Bridge Crack repair materials with selfreparing effect, by following weight percent at being grouped as:
Bo Naite 0.5%
Nano silica 2%
Sodium metasilicate 3%
Alumina silicate 2%
Anionic surfactant 5%
Sodium tripolyphosphate 0.1%
Sodium sulphate 4%
Aluminate cement 8%
Nano oxidized zinc-base pitch surplus.
The partial size of the nano silica is 20-50nm.
The anionic surfactant is neopelex.
The doping of nano zine oxide is 5% in the nano oxidized zinc-base pitch, further preferred nano zine oxide
Doping be 3%.
The preparation method of the Bridge Crack repair materials with selfreparing effect, comprising the following steps:
A, by Bo Naite, sodium metaaluminate, alumina silicate, anionic surfactant, sodium tripolyphosphate, sodium sulphate and aluminate
It is stirred evenly after cement mixing, crosses 200 meshes, obtain mixed-powder；
B, matrix pitch is heated to 170 DEG C, is proportionally added into nano zinc oxide particles, high-speed stirred obtains nano oxidized
Zinc-base pitch；
C, mixed-powder is added in nano oxidized zinc-base pitch, stirring is to being uniformly dispersed；
D, in pitch, side stirring, while be slowly added to nano silica, stirring is to being uniformly dispersed.
Comparative example 1
By the Bo Naite removal in embodiment 1, remaining proportion and preparation method are constant.
Comparative example 2
Nano oxidized zinc-base pitch in embodiment 1 is replaced with into conventional 90# pitch, remaining proportion and preparation method are not
Become.
Comparative example 3
By the sodium sulphate removal in embodiment 1, remaining proportion and preparation method are constant.
Comparative example 4
By the sodium tripolyphosphate removal in embodiment 1, remaining proportion and preparation method are constant.
The repair materials of embodiment 1-3 and comparative example 1-4 are detected below, obtained detection data is shown in Table 1.
Table 1: the detection data of repair materials；
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | |
| Water method of inspection is pressed to detect repairing effect | Without leak | Without leak | Without leak | Without leak | Without leak | Without leak | Without leak |
| Retention time after reparation | > 5 years | > 5 years | > 5 years | 28 months | 14 months | 36 months | 32 months |
| Crack situation | Without cracking | Without cracking | Without cracking | Matrix and repair materials crack | Matrix and repair materials crack | Matrix and repair materials crack | Matrix and repair materials crack |
The concrete pier base that a certain bridge on highway cracking is chosen in the above detection is repaired, which has a plurality of 0.2-
The crack of 0.5mm.Repairing effect is detected using pressure water method of inspection for 24 hours after reparation, and in 5 years, every month checks opening for pier
Split situation.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (4)
1. a kind of Bridge Crack repair materials with selfreparing effect, which is characterized in that by the ingredient of following weight percent
Composition:
Bo Naite 0.2-0.5%
Nano silica 2-5%
Sodium metasilicate 1-3%
Alumina silicate 2-4%
Anionic surfactant 2-5%
Sodium tripolyphosphate 0.1-0.3%
Sodium sulphate 2-4%
Aluminate cement 8-15%
Nano oxidized zinc-base pitch surplus；
The Bridge Crack repair materials with selfreparing effect, preparation method, comprising the following steps:
A, by Bo Naite, sodium metasilicate, alumina silicate, anionic surfactant, sodium tripolyphosphate, sodium sulphate and aluminate cement
It is stirred evenly after mixing, crosses 200 meshes, obtain mixed-powder；
B, matrix pitch is heated to 170-180 DEG C, is proportionally added into nano zinc oxide particles, high-speed stirred obtains nano oxidized
Zinc-base pitch；
C, mixed-powder is added in nano oxidized zinc-base pitch, stirring is to being uniformly dispersed；
D, in pitch, side stirring, while be slowly added to nano silica, stirring is to being uniformly dispersed；
The doping of nano zine oxide is 2-5% in the nano oxidized zinc-base pitch；
The Bo Naite is a kind of synthesis of densified refractory aggregate based on calcium hexaluminate CA6 mineral facies.
2. as described in claim 1 with the Bridge Crack repair materials of selfreparing effect, which is characterized in that the nanometer
The partial size of silica is 20-50nm.
3. as described in claim 1 with the Bridge Crack repair materials of selfreparing effect, which is characterized in that the described yin from
Sub- surfactant is neopelex.
4. as described in claim 1 with the Bridge Crack repair materials of selfreparing effect, which is characterized in that the nanometer
The doping of nano zine oxide is 3% in Zinc oxide-base pitch.
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| CN110482886B (en) * | 2019-08-21 | 2021-10-01 | 湖州乌米科技有限公司 | Method for preparing high-strength cement by using papermaking waste |
| CN116375443B (en) * | 2023-03-31 | 2023-10-24 | 江苏五茅建设集团有限公司 | Composite material for self-repairing bridge cracks and preparation method thereof |
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