CN108863200A - Cement-based material, fabric concrete for repairing bridge expanssion joint and preparation method thereof and bridge expanssion joint method for repairing and mending - Google Patents
Cement-based material, fabric concrete for repairing bridge expanssion joint and preparation method thereof and bridge expanssion joint method for repairing and mending Download PDFInfo
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- CN108863200A CN108863200A CN201711445983.XA CN201711445983A CN108863200A CN 108863200 A CN108863200 A CN 108863200A CN 201711445983 A CN201711445983 A CN 201711445983A CN 108863200 A CN108863200 A CN 108863200A
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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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
-
- 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
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
-
- 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
-
- 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
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/05—Materials having an early high strength, e.g. allowing fast demoulding or formless casting
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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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)
Abstract
The present invention provides a kind of for repairing the cement-based material of bridge expanssion joint, and the cement-based material is made of following component：60-75 parts of cement, 25-40 parts of modified material；Modified material includes following component：Component 50-80 parts of enhancing is adjusted component 20-40 parts, 0.5-5 parts of anticorrosion component, 0.5-5 parts of expansion component solidifying.The preparation method and bridge expanssion joint method for repairing and mending of the fabric concrete, the fabric concrete that the present invention also provides a kind of for repairing bridge expanssion joint.The convenient construction of fabric concrete energy provided by the invention, 0.5h-1h can open to traffic after construction, and be also equipped with high-intensity and high-tenacity, durability it is good, it is easy-maintaining maintenance, it is fire-retardant the advantages that, it can be achieved not jumping vehicle, low noise, abrasion performance, guarantee comfortable safety of driving a vehicle simultaneously, the arrangement and method for construction of watering curing molding is simple and efficient, adapts to various engineering application requirement.
Description
Technical field
The cement-based material that the present invention relates to a kind of for repairing bridge expanssion joint, fabric concrete and preparation method thereof and
Bridge expanssion joint method for repairing and mending belongs to fabric technical field of concrete.
Background technique
Domestic standard bridge especially directly takes on vehicle repeatedly by the damage growing from the volume of traffic
The deck expansion joint part of load.Usually between two beam-ends, between beam-ends and abutment or in the articulated position of bridge setting stretch
Contracting seam, bridge expanssion joint damage not only influence the normal use of bridge, but will cause bad social influence, by flexible to bridge
Seam maintenance technique is constantly explored and is studied, and a large amount of experiences have been had accumulated, and construction technology is also gradually mature.But due to applying
The limitation of the factors such as work technical requirements and patching material technology, maintenance of expansion joint there is also at high cost, project amounts big, durability compared with
The technical problems such as poor and long in time limit, bridge expanssion joint repair procedure is more, and repairing difficulty is big.Country's maintenance of expansion joint makes at present
It is super-rapid concrete with more universal material, although its open to traffic time is relatively short, still there are common coagulations
The problems such as brittle property of soil, interfacial bonding are poor and secondary damage is serious.Therefore, in order to solve above-mentioned technical problem, repair expansion joint
Simple, quick, the durable technical requirements of foot are filled, the novel flexible fabric concrete for studying good properties is significant.
Summary of the invention
The problem to be solved in the present invention is for existing maintenance cost is high, project amount is big, durability is poor and long in time limit
The technical issues of, a kind of cement-based material for repairing bridge expanssion joint, fabric concrete and preparation method thereof and bridge are provided
Beam expansion joint method for repairing and mending.
In order to solve the above technical problems, the technical solution adopted by the present invention is that：It is a kind of for repairing the water of bridge expanssion joint
Cement-based material, the cement-based material are made of following component：60-75 parts of cement, 25-40 parts of modified material；The modified material
Material includes following component：Component 50-80 parts of enhancing, tune is component 20-40 parts solidifying, and 0.5-5 parts of anticorrosion component, expansion component 0.5-
5 parts.In the present invention, in the present invention, enhancing component is used to adjust flexural strength, the compression strength, wearability of cement-based material
Can, anti-freezing property, adjust solidifying component to be used to adjust the setting time of cement-based material, anticorrosion component in prevent cement-based material by
To corrosion, expansion component is used to adjust the expansion character of cement-based material.Enhance component, adjust solidifying component, anticorrosion component, expansion
The parameters such as bending strength, compression strength, wearability parameter, the freeze proof grade of fabric concrete can be improved in component, can also adjust
The setting time of whole fabric concrete is quickly open to traffic after guaranteeing repairing.Cement is low-alkalinity sulphoaluminate cement.
Further, the enhancing group be divided into nanosized SiO_2, silicon ash, rubber powder, metakaolin, nanometer calcium, in sodium sulphate
It is one or more of.
Further, described that solidifying group is adjusted to be divided into one or more of lithium carbonate, CaCl2, boric acid, gypsum.
Further, the anticorrosion group is divided into one or more of boron nitride, silicon phosphate, calcium nitrite.
Further, the expansion component is one in calcium sulphoaluminate class, calcium oxide and calcium sulphoaluminate-calcium oxide
Kind is several.
The present invention also provides a kind of for repairing the fabric concrete of bridge expanssion joint, including the first fabric construction, described
First fabric construction includes multiple line stakes of two the first tissue layers of two the first tissue layers being oppositely arranged and connection, each
Filled with the cement-based material as described in any of the above-described between line stake.In the present invention, fabric concrete is provided simultaneously with the first fabric
The toughness of structure and the intensity of cement-based material, the first fabric construction improve the toughness and crack resistance of fabric concrete, improve
Intensity.First fabric construction can also be used as the carrier of cement-based material.
Further, the quantity of first fabric construction is at least two, and each first fabric construction stacks setting；It is excellent
Selecting first tissue layer is reticular structure.The both ends of each line stake are connect with two the first tissue layers respectively, so that first knits
Object structure forms a firm entirety.At least two first fabric constructions of setting are stacked, so that fabric coagulation of the invention
The molding thickness (height) of soil is adjustable, to adapt to the repairing at different expansion joints.It is netted by the first tissue layer of setting
Structure allows cement-based material to pass through the first tissue layer, so that the contact of cement-based material and the first fabric construction is tighter
It is close.
Further, the fabric concrete further includes the second fabric knot for accommodating the sealing of the first fabric construction
Structure；It is preferred that being additionally provided in the repairing slot for the second fabric construction to be adhered to expansion joint on the outside of second fabric construction
Adhesion layer.It is preferred that second fabric construction is by forming integrally-built top capsulation layer, bottom surface encapsulated layer and side encapsulated layer
It constitutes.It is preferred that the second fabric construction is water penetration synthetic material made of synthetic fibers are pierced or woven by needle.It is preferred that described viscous
Attached layer is set to below the encapsulated layer of bottom surface or is set on the encapsulated layer of side.By the way that the second fabric construction, the second fabric is arranged
Structure can wrap up the first fabric construction and cement-based material, can leak out from fabric structure object to avoid cement-based material, and
Convenient for adding cement-based material into the second fabric construction.First fabric construction and the second fabric construction are fixedly connected.The two shape
Integral structure guarantees the globality of fabric.By the way that adhesion layer is arranged, enable fabric concrete of the present invention and operation side
Firm bonding is not slided, and is achieved the purpose that fixed point construction, is played the role of antiseepage, waterproof, anti-dropout.
The present invention also provides a kind of preparation method of fabric concrete for repairing bridge expanssion joint as described above,
It is characterized in that, second fabric construction is by forming integrally-built top capsulation layer, bottom surface encapsulated layer and side encapsulated layer
It constitutes, the preparation method includes the following steps：
(a-1) the first tissue layer of the first fabric construction is sealed with the bottom surface encapsulated layer of the second fabric construction, side respectively
Dress layer is sealed, and does not seal the first fabric construction and top capsulation layer；
(b-1) cement, enhancing component, the solidifying component of tune, anticorrosion component, expansion component are mixed in dry conditions
It is even, obtain dry cement-based material；
(c-1) cement-based material dry in step (b-1) is filled between each line stake；
(d-1) after cement-based material filling, the first fabric construction and top capsulation layer are sealed, obtained not solid
The fabric concrete of change；
The sequence interchangeable of the step (a-1) and step (b-1).
Due to obtaining cement-based material in dry conditions, and after cement-based material filling, fabric concrete is not solid
Change, therefore the reconfigurable of fabric concrete is whole, is applicable to the repairing at different expansion joints, it is only necessary to be put into fabric concrete
Bridge expanssion joint is repaired in slot, is rewatered and is solidified into fixed shape, the repairing of bridge expanssion joint can be realized, method is simple, phase
Than greatly simplifying mending course in the repairing of traditional bridge expanssion joint, the time has been saved.In step (a-1), due to not sealing
First fabric construction and top capsulation layer, therefore convenient for the top surface spreading cement-based material in step (b-1) from fabric.Step
(d-1) in, after cement-based material is filled, the first fabric construction and top capsulation layer is sealed, cement is also avoided
Sill is leaked out from fabric.Since cement-based material is under drying condition, it is therefore desirable to be carried out in dry blender
It stirs at low speed, so that cement-based material splashing be avoided to cause to waste.
It is described the present invention also provides a kind of bridge expanssion joint method for repairing and mending using fabric concrete described in any of the above-described
Method for repairing and mending includes the following steps：
(a-2) uncured fabric concrete is put into the repairing slot for needing the expansion joint repaired；
(b-2) it waters to fabric concrete, enables fabric concrete curing；
(c-2) after watering, repairing can be completed after conserving 0.5h-1h.
Fabric concrete of the invention is easy to use, mechanical property is good, durability is good, it is fast to be open to traffic and maintenance is simple.It is described
Fabric concrete performance meets：Fabric concrete has high tenacity and freeze proof grade >=F25,1 hour after fabric concrete formation
Compression strength >=40Mpa of fabric concrete, compression strength >=90Mpa after 28 days after fabric concrete formation.Of the invention knits
Object concrete can convenient construction, after construction 0.5h-1h can open to traffic, and be also equipped with high-strength and high-ductility, durability it is good,
Easy-maintaining the advantages that conserving, is fire-retardant, is not, it can be achieved that jump vehicle, low noise, abrasion performance, while guaranteeing comfortable safety of driving a vehicle.It waters
The arrangement and method for construction of curing molding is simple and efficient, adapts to bridge expanssion joint maintenance, reflection cracking in a pavement disposition and pit slot and repairs
A variety of handling project application requirements such as benefit repair generally existing maintenance cost height, project amount to solve current bridge expanssion joint
Greatly, the engineering roadblocks such as durability is poor and long in time limit provide effective ways, to maintaining ecological balance and realize sustainable development
Exhibition has important realistic meaning.The fabric concrete that manufacture of the invention obtains is uncured, therefore the reconfigurable of fabric concrete
It is whole, it is applicable to the repairing at different expansion joints, it is only necessary to fabric concrete is put into expansion joint repairing slot, rewater and be solidified into
Fixed shape, can be realized the repairing at expansion joint, and method is simple, compared to the repairing of conventional telescopic seam, greatly simplifies and repaired
Journey has saved the time.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) the material and mixing ratio design that the present invention uses is different from normal concrete, in contrast fabric concrete
Cement-based material material and mixing ratio theoretical method is more mature perfect, easy to operate, cost is controllable, and performance is more excellent；
(2) fabric concrete of the present invention is used without the cement-based material that gathers materials, and can avoid bubble and stomata after concrete formation
Appearance, reduce leakage generate erosion, to improve fabric mechanical performance of concrete, durability；
(3) fabric concrete prepared by the present invention has both the toughness of fabric and the mechanical property of cement-based material, more commonly
Mechanical performance of concrete is more excellent, durability is more preferable, is less susceptible to that brittle break occurs；Using the fast curing-formed method of watering,
It can effectively solve a series of problems, such as maintenance is difficult, maintenance effect is poor, maintenance cost is high；
(4) present invention for current bridge expanssion joint repair generally existing maintenance cost is high, project amount is big, durability compared with
The engineering roadblocks such as poor and long in time limit, to the comprehensive performance of bridge expanssion joint service material, service quality, service life and popularization
Using etc. there is the problem of larger impact to propose a kind of solution and maintenance technique scheme, which is guaranteeing fabric concrete
High tenacity and freeze proof grade >=F25 are meeting the requirement that is quickly open to traffic and (can be open to traffic after 0.5h-1h after fabric concrete formation)
Meanwhile after fabric concrete formation 1 hour fabric concrete compression strength >=40Mpa, after fabric concrete formation after 28 days
Compression strength >=90Mpa can effectively solve the problem that current normal concrete is long in time limit because of self performance difference, durability is poor,
It can be widely used for that bridge expanssion joint maintenance, road surface is white changes the repairing of black reflection crack, road surface pit repairing, and can apply to heavily loaded friendship
The complex conditions such as logical, heavy traffic.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for
For those of ordinary skill in the art, without any creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is the vertical section schematic diagram of the fabric concrete of the embodiment of the present invention；
Fig. 2 is the vertical section of the first fabric construction of the fabric concrete for being not filled by cement-based material of the embodiment of the present invention
Schematic diagram；
Fig. 3 is the schematic top plan view of the first tissue layer of the first fabric construction of the fabric concrete of the embodiment of the present invention；
Fig. 4 be the embodiment of the present invention be not filled by cement-based material, stack setting there are two the first tissue layer fabric
The vertical section schematic diagram of concrete；
Fig. 5 is that the first fabric construction for being not filled by cement-based material of the embodiment of the present invention cuts open formula schematic diagram；
Fig. 6 is that the first fabric construction for having been filled with cement-based material of the embodiment of the present invention cuts open formula schematic diagram.
In figure, the 11, first tissue layer, 12, line stake, 21, top capsulation layer, 22, bottom surface encapsulated layer, 23, side encapsulated layer,
3, cement-based material, 4, adhesion layer.
Specific embodiment
Below in conjunction with the attached drawing of the application, the technical scheme in the embodiment of the application is clearly and completely described,
Obviously, described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Based in the application
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the application protection.
The present invention provides a kind of for repairing the cement-based material of bridge expanssion joint, and the cement-based material 3 is by such as the following group
Divide and constitutes：60-75 parts of cement, 25-40 parts of modified material；The modified material includes following component：Component 50-80 parts of enhancing,
It adjusts component 20-40 parts, 0.5-5 parts of anticorrosion component, 0.5-5 parts of expansion component solidifying.
The modified material includes enhancing component, adjusts solidifying component, anticorrosion component, expansion component.Enhancing component is for adjusting
Flexural strength, compression strength, wear-resisting property, the anti-freezing property of whole cement-based material 3.Adjust solidifying component for adjusting cement-based material
3 setting time.Anticorrosion component is for preventing cement-based material 3 from being corroded.Expansion component is for adjusting cement-based material
3 expansion character.The cement-based material 3 can be formed by curing intensity through watering.
The cement is sulphate aluminium cement.Sulphate aluminium cement is preferably low-alkalinity sulphoaluminate cement.
The enhancing group is divided into one of nanosized SiO_2, silicon ash, rubber powder, metakaolin, nanometer calcium, sodium sulphate or several
Kind.Enhancing component is used to adjust the workability and/or anti-folding and compression strength and/or caking property and/or mechanics of cement-based material 3
Performance and/or toughness and/or anti-permeability performance, wear-resisting property, anti-freezing property.Enhancing component major function includes improving fabric to mix
The workability for coagulating soil improves the anti-folding and compression strength, the caking property for increasing cement-based material 3, enhancing mechanical property of each age
It can, improve toughness, improve impervious and wear-resisting property.
It is described that solidifying group is adjusted to be divided into one or more of lithium carbonate, CaCl2, boric acid, gypsum.Adjust solidifying component for adjusting water
The presetting period of cement-based material 3 and final setting time.Adjusting solidifying component material major function includes controlling to adjust cement base by volume
The initial set of material 3, final setting time, so that fabric concrete of the present invention adapts to different climatic environments.
The anticorrosion group is divided into one or more of boron nitride, silicon phosphate, calcium nitrite.Anticorrosion component is for preventing
Sealing cement-based material 3 is corroded.Anticorrosion component material major function includes making fabric concrete that there is anti-salt ion to invade
Erosion, freeze thawing resistance circulation destroy and the superperformances such as highly resistance infiltration.
The expansion component is one or more of calcium sulphoaluminate class, calcium oxide and calcium sulphoaluminate-calcium oxide.
Expansion component is used to adjust the expansion character of cement-based material 3.The major function of expansion component includes expanding cement-based material 3
Performance is stablized, and durability is good, and intensity continuous rises, to prevent fabric concrete from the crack as caused by the temperature difference occur.
In the present invention, enhancing component adjusts solidifying component, anticorrosion component, expansion component to have to bridge expanssion joint repairing
Effect：If may cause fabric concrete without using enhancing component and the mechanical property requirements being open to traffic be not achieved in a short time, from
And influence the fabric concrete scope of application；If it is long to may cause the fabric concrete formation time, to reach without using solidifying component is adjusted
Less than the purpose of Rapid-Repair, short time open to traffic；If do not use anticorrosion component, may cause the salt resistance of fabric concrete from
Sub- erosion performance decline, so that whole resistance to corrosion is insufficient, it is difficult to adapt to the more severe construction environment of environment；If without using swollen
Swollen component, volume contraction is excessive after may cause cement-based material aquation, so that fabric concrete overall construction deforms, reduces comprehensive
Close performance.In the present invention, by including the combined cement base for enhancing component, adjusting solidifying component, anticorrosion component and expansion component
Fabric concrete is made in material, and fabric concrete can be made to realize high-strength, fast mesh hard, corrosion resistance is strong and overall construction is stable
's.
As shown in Figure 1, the present invention provide it is a kind of for repairing the fabric concrete of bridge expanssion joint, including fabric and filling
Cement-based material 3 in fabric.3 dense packing effect of cement-based material is in fabric.Fabric concrete is with high performance fabric
Carrier, cement-based material 3 are that filler carries out dense packing effect, and forms the fabric concrete.The fabric is three-dimensional spacer fabric.
The fabric includes the second fabric construction of the first fabric construction of the first fabric construction and package.
Fabric concrete for repairing bridge expanssion joint includes the first fabric construction, the second fabric construction and described above
Cement-based material 3.
First fabric construction, the second fabric construction mutually seal, and the cement-based material 3 is filled in the first fabric knot
In structure.First fabric construction, the second fabric construction are sealed by needling process.The fabric thickness is 5mm-40mm, can be formed
The multiduty fabric concrete of different performance grade makes fabric concrete of the present invention be applicable in works scope and greatly increases.Described
One fabric construction and the second fabric construction are by package and package property.Second fabric construction includes top capsulation layer 21, bottom surface
Encapsulated layer 22, side encapsulated layer 23 carry out the first fabric construction to cover all around wrapping and encapsulating.First fabric construction, second
Fabric construction fits closely.Fig. 5 is that the formula of cuing open of the first fabric construction for being not filled by cement-based material of the embodiment of the present invention is shown
It is intended to.Fig. 6 is that the first fabric construction for having been filled with cement-based material of the embodiment of the present invention cuts open formula schematic diagram.For letter
Just, the specific structure of the first tissue layer 11 is not drawn into Fig. 5, Fig. 6.In order to omit, identical structure is not drawn in Fig. 5 and Fig. 6
Out.
As Figure 2-3, first fabric construction includes two the first tissue layers 11 being oppositely arranged and connection two
Multiple line stakes 12 of a first tissue layer 11 are filled with cement-based material 3 between each line stake 12.First tissue layer 11 is netted
Fiber fabric layer.It is preferred that reticular fibre tissue layer is reticular fibre eyelet fabric.Two the first tissue layers 11 of the first fabric construction
Above and below being located at, centre connects wired stake 12.
As shown in figure 4, if desired adjusting the thickness of fabric concrete, then it can adjust the number of the first fabric construction, it is described
The quantity of first fabric construction is at least two, and each first fabric construction stacks setting.The upper table of first tissue layer 11
Cement-based material 3 is filled between face, lower surface.It is preferred that first tissue layer 11 is reticular structure.Stack setting at least
Two the first fabric constructions, so that the molding thickness (height) of fabric concrete of the invention is adjustable, to adapt to different
The repairing at expansion joint.It is reticular structure by the first tissue layer of setting, allows cement-based material to pass through the first tissue layer, make
The contact for obtaining cement-based material and the first fabric construction is closer.By the first tissue layer 11 of the first fabric construction being located above
Underlying first tissue layer 11 of first fabric construction is known as lower tissue layer by referred to as upper tissue layer.Each first fabric
When structure stacks setting, cement-based material is leaked between the reticular structure of the upper tissue layer for the first fabric construction for being located at the top
To between line stake 12, then lower tissue layer is drained to, then drain to underlying first fabric construction, underlying first is knitted from this
The upper tissue layer of object structure drains between line stake 12, realizes the cement-based material 3 between the line stake 12 of each first fabric construction
Filling, to guarantee the filling compactness of whole fabric concrete.First fabric construction can be passed through by warp knit weaving loom
Microcomputer automatic control realizes braiding.
In the first fabric construction, the both ends of each line stake 12 are connect with two the first tissue layers 11 respectively, so that first
Fabric construction forms a firm entirety.
Second fabric construction is used to seal the first fabric construction and accommodate.Second fabric construction is by formation overall structure
Top capsulation layer 21, bottom surface encapsulated layer 22 and side encapsulated layer 23 constitute；It is preferred that the second fabric construction passes through for synthetic fibers
Water penetration synthetic material made of needle thorn or braiding.
It is additionally provided in the repairing slot for the second fabric construction to be adhered to expansion joint on the outside of second fabric construction
Adhesion layer 4.Adhesion layer 4 is set to below the encapsulated layer of bottom surface or is set on the encapsulated layer of side.4 major function of adhesion layer
It is that enabling fabric concrete of the present invention to consolidate bonding with operation side does not slide, and achievees the purpose that fixed point construction, plays
Antiseepage, the effect of waterproof, anti-dropout.Response type room temperature pitch, high-viscosity high-elasticity asphalt, pressure sensitive adhesive, temperature-sensitive can be used in adhesion layer 4
One or more of glue, epoxy resin, thermosetting resin, synthetic polymer resin.
In the present invention, the first fabric construction and the second fabric construction are cut to be suitble to size, then pass through needling process
The two is subjected to bottom surface and side sealing, it is spare to reserve top surface filler；Cement-based material 3 is calculated to match and be uniformly mixed；Vibration
Filler is to closely knit；It encapsulates top surface and forms fabric concrete；After completing, fabric concrete is put into expansion joint repairing slot and is poured
Repairing can be completed in water cure sizing, maintenance 0.5h-1h.
The present invention provides a kind of preparation method of above-mentioned fabrics concrete, which is characterized in that the system of the fabric concrete
Preparation Method includes the following steps：
(a-1) preparation of fabric：
First fabric construction and the second fabric construction are cut to be suitble to size, by needling process by the first fabric construction
Needle thorn is carried out with the top capsulation layer 21 of the second fabric construction, bottom surface encapsulated layer 22 respectively to seal, and does not seal the first fabric knot
Structure and top capsulation layer 21, it is spare to reserve 21 filler of top capsulation layer.After the completion of sealing in this step, to passing through needling process
The fiber wire of the outer surface for being placed in bottom package layer 22 generated is heat-treated, and it is spherical to form it into several thermal contractions
Knot, is closely attached to the outer surface of bottom package layer 22.By being heat-treated to fiber wire, fiber can be further improved
The compactness of fabric, it is also ensured that the beauty of fabric concrete.In the present embodiment, the first tissue layer 11 is reticular fibre fabric
Layer.It is preferred that reticular fibre tissue layer is reticular fibre eyelet fabric.Reticular fibre eyelet fabric top surface eyelet is conveniently of circular shape, top
Face eye is arranged in a manner of rectangular array.The diameter of top surface eyelet can determines according to actual conditions, and those skilled in the art can
To understand.In the present invention, needle thorn sealing is can be used in sealing, can also be sealed using other modes, those skilled in the art
It is understood that.
(b-1) preparation of cement-based material：
The proportion for calculating each component in cement-based material 3 weighs cement, enhancing component, adjusts solidifying component, anticorrosion group
Divide, expansion component, and carry out manually tentatively mixing thoroughly in dry conditions, then will tentatively mix material thoroughly and be added in dry blender
It carries out stirring at low speed 2-3min, obtains dry, uniformly mixed cement-based material 3.Required cement-based material and fabric
Volume is to fill saturation degree (compactness) >=98.6% as criterion calculation.The mixing time of blender can according to the actual situation really
It is fixed, it will be appreciated by those skilled in the art that.The parts by weight of each component are cement 60-75 parts, are modified in the fabric concrete
25-40 parts of material, in the modified material parts by weight of each component be component 50-80 part of enhancing, adjust coagulate component 20-40 parts,
0.5-5 parts of anticorrosion component, 0.5-5 parts of expansion component.Cement is preferably low-alkalinity sulphoaluminate cement.
(c-1) cement-based material is filled
Fabric as filling carrier is fixed on the corresponding position on shake table, while shake table vibration, is opened
Shake table takes out the cement-based material 3 being uniformly mixed in step (b-1), and uniform spreading is in the reserved top surface of fabric several times, i.e.,
Spreading is in the top surface of the first fabric construction, until whole fillings of cement-based material 3 finish.Cement-based material 3 is filled to closely knit
It is finished for filling.
(d-1) cement-based material filling top surface needle thorn sealing：
After cement-based material 3 is filled, closes shake table and take out fabric concrete, by the first fabric construction and top surface
Encapsulated layer 21 carries out needle thorn sealing, obtains uncured fabric concrete finished product.
In the preparation method of above-mentioned fabrics concrete, the sequence interchangeable of the step (a-1) and step (b-1).
The present invention also provides a kind of bridge expanssion joint method for repairing and mending using fabric concrete described above, the expansion joints
Method for repairing and mending includes the following steps：
(a-2) uncured fabric concrete is put into the repairing slot for needing the expansion joint repaired, adhesion layer 4 is bonded
In the repairing slot at expansion joint, wherein the repairing slot at expansion joint is handled well in advance；
(b-2) it is watered with running water pipe to fabric concrete, carries out watering molding, enable fabric concrete curing；
(c-2) after watering, repairing can be completed after conserving 0.5h-1h, it can open to traffic.
Expansion joint method for repairing and mending of the invention is mainly used for the maintenance of bridge expanssion joint.
Embodiment one
In the present embodiment, weighing, each component in fabric concrete are calculated according to filling saturation degree (compactness) >=98.6%
Parts by weight be respectively：65 parts by weight of low-alkalinity sulphoaluminate cement, adjust solidifying 10 weight of component at enhancing 23 parts by weight of component
Part, 1 parts by weight of anticorrosion component, 1 parts by weight of expansion component.It is prepared not using the preparation method of above-mentioned fabric concrete
Cured fabric concrete.
In the present embodiment, after obtaining uncured fabric concrete, fabric concrete is placed in testing stand, uses running water pipe
Watering molding is carried out, after watering, maintenance 40min waits for that intensity forms stabilization.After maintenance 40min minutes, observed by appearance,
Performance test is detected and analyzed fabric concrete formation shape, mechanical strength, wearability, toughness.
It is shown in Table 1 according to the performance test results of one gained fabric concrete of embodiment.
Embodiment two：
In the present embodiment, weighing, each component in fabric concrete are calculated according to filling saturation degree (compactness) >=98.6%
Parts by weight be respectively：65 parts by weight of low-alkalinity sulphoaluminate cement, adjust solidifying 10 weight of component at enhancing 23 parts by weight of component
Part, 1 parts by weight of anticorrosion component, 1 parts by weight of expansion component.Utilize the preparation method for the fabric concrete being the same as example 1
Uncured fabric concrete is prepared.
In the present embodiment, after obtaining uncured fabric concrete, fabric concrete is put into handle well in advance it is flexible
In seam, watering molding is carried out with running water pipe, after watering, repairing can be completed after conserving 0.5h-1h.
According to the resulting fabric concrete test of embodiment two, the results are shown in Table 1.
Embodiment three
In the present embodiment, weighing, each component in fabric concrete are calculated according to filling saturation degree (compactness) >=98.6%
Parts by weight be respectively：85 parts by weight of low-alkalinity sulphoaluminate cement, enhancing 10 parts by weight of component, adjust solidifying 3 parts by weight of component,
1 parts by weight of anticorrosion component, 1 parts by weight of expansion component.Utilize the preparation method system for the fabric concrete being the same as example 1
It is standby to obtain uncured fabric concrete.
According to the resulting fabric concrete test of embodiment three, the results are shown in Table 1.
Example IV
In the present embodiment, weighing, each component in fabric concrete are calculated according to filling saturation degree (compactness) >=98.6%
Parts by weight be respectively：73 parts by weight of low-alkalinity sulphoaluminate cement, enhancing 18 parts by weight of component, adjust solidifying 7 parts by weight of component,
1 parts by weight of anticorrosion component, 1 parts by weight of expansion component.Utilize the preparation method system for the fabric concrete being the same as example 1
It is standby to obtain uncured fabric concrete.
According to the resulting fabric concrete test of example IV, the results are shown in Table 1.
Embodiment five
In the present embodiment, weighing, each component in fabric concrete are calculated according to filling saturation degree (compactness) >=98.6%
Parts by weight be respectively：60 parts by weight of low-alkalinity sulphoaluminate cement, adjust solidifying 12 weight of component at enhancing 26 parts by weight of component
Part, 1 parts by weight of anticorrosion component, 1 parts by weight of expansion component.Utilize the preparation method for the fabric concrete being the same as example 1
Uncured fabric concrete is prepared.
According to the resulting fabric concrete test of embodiment five, the results are shown in Table 1.
Embodiment six：
In the present embodiment, weighing, each component in fabric concrete are calculated according to filling saturation degree (compactness) >=98.6%
Parts by weight be respectively：43 parts by weight of low-alkalinity sulphoaluminate cement, adjust solidifying 20 weight of component at enhancing 35 parts by weight of component
Part, 1 parts by weight of anticorrosion component, 1 parts by weight of expansion component.Utilize the preparation method for the fabric concrete being the same as example 1
Uncured fabric concrete is prepared.
According to the resulting fabric concrete test of embodiment six, the results are shown in Table 1.
The test result of 1 fabric concrete of table
In the application, parts by weight of the cement in cement-based material are preferably 60-75 parts, and enhancing component adjusts solidifying component to exist
Parts by weight in modified material are respectively preferably 50-80 parts, 20-40 parts, therefore enhance component, adjust solidifying component in cement-based material
In parts by weight be respectively 12.5-32 part, 5-16 part, therefore in embodiment three and embodiment six, cement enhances component, tune
Solidifying parts by weight of the component in cement-based material are not within this range.In embodiment one and embodiment two, cement, enhancing group
Divide, solidifying parts by weight of the component in cement-based material is adjusted to be in the preferred scope of the application.Example IV and embodiment five
In, cement, is adjusted solidifying parts by weight of the component in cement-based material to be in the preferred scope of the application and is approached enhancing component
The endpoint of the range.
As can be seen from Table 1：
(1) bending strength, compression strength, wearability parameter of fabric concrete, freeze proof etc. in embodiment one, two, four, five
Grade is significantly better than that the correspondence measurement result in embodiment three and six.
(2) in embodiment one, two, four, five, the presetting period of fabric concrete is respectively less than 20min, and final setting time is respectively less than
35min；Therefore setting time needed for is shorter；In embodiment three, the presetting period reaches 30min, and final setting time reaches 50min, institute
Need setting time longer；In embodiment six, although presetting period, final setting time are shorter, toughness is poor, cracks tighter
Weight.
(3) although embodiment one is identical as the parts by weight of each component in embodiment two, due to the difference of experimental condition,
There can be nuance in practice, be consequently belonging to normal phenomenon.
By result above, cement, enhancing component, the tune that can prove that the present invention provides coagulate component in cement-based material
Parts by weight preferred scope be optimal proportion range.
The finished product of fabric concrete of the invention have it is light-weight, tensile strength is high, good penetrability, high temperature resistant, anti-freezing,
Ageing-resistant, corrosion resistant characteristic has outstanding draining, isolation, reinforcement, antiseepage, protective action.
Fabric concrete in the present invention, is improved significantly compared with normal concrete performance, and wherein setting time is significantly
Shorten, tensile strength and bending strength also enhanced significantly, and toughness is good, and without delamination, without cracking phenomena.
In existing super-rapid concrete, need to wait can just resume traffic for 2-3 hours.It is repaired compared to existing expansion joint
Mend, the of the invention fabric concrete can convenient construction, after construction 0.5h-1h can open to traffic, and be also equipped with high-strength
High tenacity, durability be good, easy-maintaining maintenance, it is fire-retardant the advantages that, it can be achieved that do not jump vehicle, low noise, abrasion performance, while guaranteeing to drive a vehicle
Comfortable safety.The arrangement and method for construction of its curing molding that waters is simple and efficient, adapts to bridge expanssion joint maintenance, reflection cracking in a pavement
A variety of handling project application requirements such as disposition and pit repairing have maintaining ecological balance and realization sustainable development important existing
Sincere justice.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
The embodiments of the present invention have been described in detail above, but content is only the preferred embodiment of the present invention,
It should not be considered as limiting the scope of the invention.All changes and improvements made in accordance with the scope of the present invention, should all
It still belongs within this patent covering scope.
Claims (10)
1. a kind of for repairing the cement-based material of bridge expanssion joint, it is characterised in that：The cement-based material（3）By such as the following group
Divide and constitutes：60-75 parts of cement, 25-40 parts of modified material；The modified material includes following component：Component 50-80 parts of enhancing,
It adjusts component 20-40 parts, 0.5-5 parts of anticorrosion component, 0.5-5 parts of expansion component solidifying.
2. cement-based material according to claim 1, it is characterised in that：The enhancing group is divided into nanosized SiO_2, silicon ash, glue
One or more of powder, metakaolin, nanometer calcium, sodium sulphate.
3. cement-based material according to claim 1, it is characterised in that：It is described adjust solidifying group be divided into lithium carbonate, CaCl2, boric acid,
One or more of gypsum.
4. cement-based material according to claim 1, it is characterised in that：The anticorrosion group is divided into boron nitride, silicon phosphate, Asia
One or more of calcium nitrate.
5. cement-based material according to claim 1, it is characterised in that：The expansion component is calcium sulphoaluminate class, calcium oxide
One or more of class and calcium sulphoaluminate-calcium oxide.
6. a kind of for repairing the fabric concrete of bridge expanssion joint, it is characterised in that：Including the first fabric construction, described first
Fabric construction includes two the first tissue layers being oppositely arranged（11）And two the first tissue layers of connection（11）Multiple line stakes
（12）, each line stake（12）Between filling just like cement-based material described in any one of claim 1-5（3）.
7. fabric concrete according to claim 6, it is characterised in that：The quantity of first fabric construction is at least two
A, each first fabric construction stacks setting；It is preferred that first tissue layer（11）For reticular structure.
8. fabric concrete according to claim 6 or 7, it is characterised in that：It further include for the first fabric construction is close
Seal the second fabric construction accommodated；It is preferred that being additionally provided on the outside of second fabric construction for the second fabric construction to be adhered to
Adhesion layer in the repairing slot at expansion joint（4）.
9. a kind of as claimed in claim 8 for repairing the preparation method of the fabric concrete of bridge expanssion joint, feature exists
In second fabric construction is by forming integrally-built top capsulation layer（21）, bottom surface encapsulated layer（22）And side encapsulated layer
（23）It constitutes, the preparation method includes the following steps：
（a-1）By the first tissue layer of the first fabric construction（11）Respectively with the bottom surface encapsulated layer of the second fabric construction（22）, side
Face encapsulated layer（23）It is sealed, and is not sealed the first fabric construction and top capsulation layer（21）；
（b-1）Cement, adjusts solidifying component, anticorrosion component, expansion component to be uniformly mixed in dry conditions at enhancing component, obtains
Dry cement-based material（3）；
（c-1）By step（b-1）The cement-based material of middle drying（3）It is filled in each line stake（12）Between；
（d-1）Cement-based material（3）After filling, by the first fabric construction and top capsulation layer（21）It is sealed, is obtained
Uncured fabric concrete；
The step（a-1）And step（b-1）Sequence interchangeable.
10. a kind of bridge expanssion joint method for repairing and mending using fabric concrete described in any one of claim 6-8, feature
It is, the method for repairing and mending includes the following steps：
（a-2）Uncured fabric concrete is put into the repairing slot for needing the expansion joint repaired；
（b-2）It waters to fabric concrete, enables fabric concrete curing；
（c-2）After watering, repairing can be completed after conserving 0.5h-1h.
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