CN208105186U - Severe cold area slab joint surface layer is flat to cover type flexibility water sealing structure - Google Patents
Severe cold area slab joint surface layer is flat to cover type flexibility water sealing structure Download PDFInfo
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- CN208105186U CN208105186U CN201820109047.5U CN201820109047U CN208105186U CN 208105186 U CN208105186 U CN 208105186U CN 201820109047 U CN201820109047 U CN 201820109047U CN 208105186 U CN208105186 U CN 208105186U
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Abstract
The utility model provides that a kind of severe cold area slab joint surface layer is flat to cover type flexibility water sealing structure, and severe cold area slab joint surface layer is flat to be covered type flexibility water sealing structure and include:Concrete slab, there are seam between two adjacent block concrete panels, the top of the cross section of the seam is V-type;Elastic supporting member for supporting optical member, the elastic supporting member for supporting optical member are connected in the seam, and the side wall of the seam and the elastic supporting member for supporting optical member define to form filling slot;Plasticity caulking material, the plasticity caulking material are located in the filling slot;Flexible barrier coating, the flexible barrier coating cover the filling slot and respectively the upper surface bonding connection with two pieces of concrete slabs.Severe cold area slab joint provided by the utility model surface layer is flat to cover that type flexibility water sealing structure and installation method construction is simple, barrier performance are good, durability degree is high, are suitable for severe cold area.
Description
Technical field
The utility model relates to watertightly sealed technical fields, in particular to a kind of severe cold area slab joint surface layer
It is flat to cover type flexibility water sealing structure.
Background technique
The utility model belongs to the relevant technologies relevant to the utility model for the description of background technique, is only used for
The utility model content for illustrating and being easy to understand the utility model, should not be construed as applicant and is specifically identified to or estimates applicant recognizing
To be the prior art of the utility model in the applying date for being put forward for the first time application.
Concrete face rockfill dam has many advantages, such as that with low investment, short time limit, safety are good, easy for construction, adaptable,
Universal promotion and application have been obtained both at home and abroad.But in concrete slab seepage prevention system, concrete face rockfill dam seam is stopped
Water is still weak link.Currently, generalling use flexible waterproof sheet as protective cover plate carries out concrete face rockfill dam seam
Sealing, common protective cover plate material has ethylene propylene diene rubber (EPDM) plate, rubber slab and composite rubber plate etc., and passes through expansion
Bolt is fixed on the two sides of concrete slab seam.But above-mentioned anchoring type water sealing structure has following deficiency:
First, the flatness of concrete surface plate surface is difficult to control, and flatness error is typically at least in 1cm or more, expansion
The usually minimum 15cm of pitch of bolts, there are gaps between protective cover plate and concrete slab.
Second, the sealing of concrete slab seam is that complications are changeable, and there are several multiple T shapes or L-type dog-ear, work progress
Connector is customized and angle steel installation is it is difficult to ensure that the presence of quality, gap and defect will increase library water leakage.
Third, protective cover plate are fixed on concrete surface, fastening bolt construction technology trouble, installation by bolt and angle steel
It is more difficult, it is difficult to guarantee quality.
4th, bolt is easy to happen frost drawing peeled-off, and steel plate or angle bar press strip in cold district water level variation portion
Resistant to rust ability is poor, and for a long time in water and SEA LEVEL VARIATION area gets rusty easily, durability is poor.
In order to improve drawbacks described above, slab joint surface layer application type water sealing structure is had also been proposed.This structure has construction
Simply, the feature that water-stagnating effect is good, durability is good.But in severe cold area, concrete slab surface layer can tie ice of great thickness, due to anchor
Plasticity calking compound inside curable type water sealing structure and application type water sealing structure is convex form, vulnerable to ice sheet squeezing action shadow
It is loud, the plasticity calking compound inside extruding anchor curable type water sealing structure and application type water sealing structure is understood under the effect of huge ice pressure,
Causing anchoring type water sealing structure to occur, plastic filler is squeezed out along two sides protective cover plate lower part, protective cover plate tearing and application type stop
There is surface covering and is squeezed and deformed the defects of serious in water-bound.
Utility model content
The main purpose of the utility model embodiment there is provided a kind of construction is simple, barrier performance is good, durability degree is high, suitable
Severe cold area slab joint surface layer for being suitable for severe cold area, which is put down, covers type flexibility water sealing structure.
Severe cold area slab joint provided by the utility model surface layer is flat to be covered type flexibility water sealing structure and includes:Concrete surface
Plate, there are seam between two adjacent block concrete panels, the top of the cross section of the seam is V-type;Elastic supporting member for supporting optical member, institute
The V-type part that elastic supporting member for supporting optical member is connected to the seam is stated, the side wall of the seam and the elastic supporting member for supporting optical member define to be formed
Filling slot;Plasticity caulking material, the plasticity caulking material are located in the filling slot;Flexible barrier coating, it is described flexible anti-
Impregnation coating covers the filling slot and respectively the upper surface bonding connection with two pieces of concrete slabs.
Further, the upper surface of two pieces of concrete slabs is in the same plane.
Further, the flexible barrier coating includes at least one layer of tire base fabric.
Further, it is equipped between the flexible barrier coating and the upper surface of concrete slab described in every piece rigid bonding
Layer and flexible bonding layer;The flexible barrier coating is adhesively fixed by the rigid adhesive layer with the concrete slab;
The flexible barrier coating is connected by the flexible bonding layer with the concrete slab;Wherein, the flexible bonding layer phase
The rigid adhesive layer is arranged close to the filling slot.
Further, the width of the flexible bonding layer is not more than 30cm;The width of the rigidity adhesive layer is not less than 20cm.
Further, on the rigid adhesive layer surface layer with a thickness of T1, the flexible barrier applies the flexible barrier coating
Layer with a thickness of T2, then has following relationship on the flexible bonding layer surface layer:2.0mm≤T1≤4.0mm;T2 > T1.
Further, the flexible barrier coating is on plasticity caulking material surface layer with a thickness of T2, reservoir level variation
The maximum stage difference in area is H, then has following relationship:As H < 20m, T2=4.0mm;As 20m≤H < 50m, 4.0mm≤T2
< 5.0mm;As 50m≤H < 100m, 5.0mm≤T2 < 6.0mm.
Further, the rigid adhesive layer is made of adhesives, and the thickness of the adhesives is less than 0.2mm, described
Flexible barrier coating and the adhesive strength of the concrete slab are greater than 2.5MPa or strong greater than the tension of the concrete slab
Degree.
Further, the flexible bonding layer is made of flexible splicing material, and the thickness of the flexible splicing material is less than
The adhesive strength of 0.2mm, the flexible splicing material and the concrete slab is less than 0.5MPa.
Further, coarse aggregate is exposed in the upper surface polishing of the concrete slab.
Further, the flexible barrier coating is made of polyurea materials.
Further, it is small greater than 100%, water absorption rate to be greater than 10MPa, elongation at break for the tensile strength of the polyurea materials
In 5%.
Preferably, the elastic supporting member for supporting optical member is rubber bar or sticking plaster.
Slab joint surface layer in severe cold area provided by the utility model embodiment is flat to cover the construction letter of type flexibility water sealing structure
List, barrier performance is good, durability degree is high, is suitable for severe cold area, can prevent the frost of panel water sealing structure and ice from pulling out destruction.
The additional aspect and advantage of the utility model will become obviously in following description section, or practical new by this
The practice of type is recognized.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and is readily appreciated that, wherein:
Fig. 1, which is that slab joint surface layer in severe cold area provided by the preferred embodiment in the utility model is flat, covers type flexibility sealing knot
The sectional view of structure;
Fig. 2, which is that slab joint surface layer in severe cold area provided by the preferred embodiment in the utility model is flat, covers type flexibility sealing knot
The installation procedure figure of structure;
Wherein, the corresponding relationship in Fig. 1 between appended drawing reference and component names is:
1 concrete slab, 2 elastic supporting member for supporting optical member, 3 plasticity caulking materials, 4 flexible barrier coatings, 5 rigid adhesive layers, 6 is flexible
Bonding layer, 7 seams.
Specific embodiment
In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have
The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen
The feature in embodiment and embodiment please can be combined with each other.
Many details are explained in the following description in order to fully understand the utility model, still, this is practical
Novel to be implemented using other than the one described here other modes, therefore, the protection scope of the utility model is simultaneously
It is not limited by the specific embodiments disclosed below.
Following the discussion provides multiple embodiments of the utility model.Although each embodiment represents the list of utility model
One combination, but the utility model difference embodiment can replace, or merge combination, therefore the utility model is it is also contemplated that packet
All possible combinations containing documented identical and/or different embodiments.Thus, it is another if one embodiment includes A, B, C
A embodiment includes the combination of B and D, then the utility model also should be regarded as including that the one or more containing A, B, C, D is all
Other possible combined embodiments, although the embodiment may not have specific literature record in the following contents.
Fig. 1, which is that slab joint surface layer in severe cold area provided by the preferred embodiment in the utility model is flat, covers type flexibility sealing knot
The sectional view of structure;As shown in Figure 1, slab joint surface layer in severe cold area provided by the preferred embodiment in the utility model is flat, to cover type soft
Property water sealing structure includes:Concrete slab 1, there are seam 7 between two adjacent block concrete panels 1, the seam 7 it is transversal
The top in face is V-type;Elastic supporting member for supporting optical member 2, the elastic supporting member for supporting optical member 2 are connected to the V-type part of the seam 7, the seam 7
Side wall and the elastic supporting member for supporting optical member 2 define to form filling slot;Plasticity caulking material 3, the preferably natural rubber of plasticity caulking material 3
Glue class or modified pitch and rubber complex class material, such as GB plastic filler, the plasticity caulking material 3 are located at the filling slot
It is interior;Flexible barrier coating 4, the flexible barrier coating 4 cover the filling slot and respectively with two pieces of concrete slabs 1
Upper surface is adhesively fixed.
As shown in Figure 1, there are seam 7 between two pieces of adjacent concrete slabs 1, in order to prevent water or other liquid via
Seam 7 leaks, and abutment joint 7 is needed to be sealed, this preferred embodiment uses following two seals:
First of sealing:Flexible barrier coating 4 covers the filling slot, and the upper table with two block concrete panels 1 respectively
Face is fixedly connected, water or other liquid can not by or penetrate into the flexible barrier coating 4, to realize antiseepage;
Second sealing:Elastic supporting member for supporting optical member 2 is set, while guaranteeing that elastic supporting member for supporting optical member 2 is connected in seam 7, is flexibly supported
Part 2 extends along direction and is bonded setting with two block concrete panels 1 respectively, elastic supporting member for supporting optical member 2 itself and other structures (such as
Plasticity caulking material 3) gravity under, be bonded setting with two block concrete panels 1 always;Even if water or other liquid pass through
Above-mentioned first of sealing, can not also pass through filling slot.Further enhance the antiseepage function of this preferred embodiment.
By first of sealing of setting and second sealing, strict leakage preventing structure is formd, water is effectively prevented
Or other liquid are leaked via seam 7.
Flexible barrier coating 4 is suitable for the case where 1 rough surface of concrete slab, and flexible barrier coating 4 can pass through scene
The many kinds of measures such as spraying, blade coating or brushing are realized, the molding flexible barrier coating 4 of field-applied, substitution installation prefabricated board are passed through
Material is suitable for various complicated seam faces, construction is simple is close, it can be achieved that flexible barrier coating 4 and concrete slab 1 fit closely
It is ideal to seal effect.
As shown in Figure 1, being filled with plasticity caulking material 3 in the filling slot, on the one hand, plasticity in this preferred embodiment
Caulking material 3 can compress elastic supporting member for supporting optical member 2, and support the flexible barrier coating 4, enhance the flexible barrier coating 4
Ductility, plasticity caulking material 3 cooperate the change in shape of the filling slot and change, and enhance the knot of the utility model embodiment
Structure intensity;On the other hand, plasticity caulking material 3 is made of plastic material material, has efficiently controlled deformation quantity, described in protection
Flexible barrier coating 4;Meanwhile plasticity caulking material 3 has good mobile performance, it, can be described under ambient pressure effect
Flowing, effective antiseepage in filling slot, and guarantee structural strength.
As shown in Figure 1, severe cold area slab joint surface layer is flat to cover type flexibility water sealing structure cleverly in this preferred embodiment
It is embedded in seam 7, relative to the upper surface of two concrete slabs 1, severe cold area slab joint surface layer is flat to cover type flexibility sealing
Structure does not form larger protrusion, and under severe cold environment, ice cube, which moves to severe cold area slab joint surface layer and puts down, covers type flexibility
When water sealing structure, it flat to severe cold area slab joint surface layer will not cover type flexibility water sealing structure and cause biggish impact, Ke Yiyou
The destruction that anti-stagnant ice pulled out or freezed leakage preventing structure caused by swollen extruding is imitated, ensure that flat to cover type soft on severe cold area slab joint surface layer
Property water sealing structure overall structural strength, therefore, the utility model be suitable for severe cold environment.Simultaneously as the plasticity filleting
The presence of material 3 can occur certain deformation according to external force size, both support the flexible barrier coating 4, be also prevented from described
Flexible barrier coating 4 occurs biggish deformation and damages.
As shown in Figure 1, the top of the cross section of the seam 7 is V-type in this preferred embodiment.It can be to resilient support
Part 2 forms good support, and elastic supporting member for supporting optical member 2 under force can be with the side wall good fit of seam 7.
Slab joint surface layer in severe cold area provided by this preferred embodiment is flat to be covered type flexibility water sealing structure construction is simple, prevents
Infiltration performance is good, durability degree is high, while being suitable for severe cold area SEA LEVEL VARIATION area ice condition.
As shown in Figure 1, the upper surface of two pieces of concrete slabs 1 is in the same plane in this preferred embodiment.On
State structure setting ensure that the flexible water sealing structure of 1 dam seam of concrete slab 7 relative to concrete slab 1 upper surface protrusion compared with
It is small, it is suitable for severe cold environment, ensure that the stability of structure.
In one embodiment, flexible barrier coating 4 includes at least one layer of tire base fabric.It is added in flexible barrier coating 4
Tire base fabric quality it is more soft and there is certain toughness, can effectively enhance the anti-pressure ability of flexible barrier coating 4 and anti-
External force damage capability, while can guarantee that 4 thickness of flexible barrier coating is uniform.
As shown in Figure 1, slab joint surface layer in severe cold area provided by the utility model embodiment is flat to cover type flexibility sealing
Structure, be equipped between the flexible barrier coating 4 and the upper surface of every piece of concrete slab 1 rigid adhesive layer 5 and
Flexible bonding layer 6, the flexible barrier coating 4 are fixedly connected by the rigid adhesive layer 5 with the concrete slab 1, institute
Flexible barrier coating 4 is stated to be connected by the flexible bonding layer 6 with the concrete slab 1;Wherein, the flexible bonding layer 6
It is arranged relative to the rigid adhesive layer 5 close to the filling slot.
Flexible barrier coating 4 passes through the dual connection type and concrete surface of rigid adhesive layer 5 and flexible bonding layer 6
Plate 1 is attached, under above structure setting, by the way that rigid adhesive layer 5 is arranged, be effectively guaranteed flexible barrier coating 4 with
The secured connection of concrete slab 1 further increases the free extension of flexible barrier coating 4 by the way that flexible bonding layer 6 is arranged
Degree increases the ability that flexible barrier coating 4 adapts to 7 Three-direction deformation of seam, improves the whole toughness of structure.
Slab joint surface layer in severe cold area provided by the utility model embodiment is flat to cover type flexibility water sealing structure, flexible glue
The width of layer 6 is connect no more than 30cm;The width of rigid adhesive layer 5 is not less than 20cm.Above structure setting is guaranteeing overall structure
While intensity, the free extension degree and flexible barrier coating 4 for improving flexible barrier coating 4 to greatest extent adapt to seam
The ability of 7 Three-direction deformations.
Slab joint surface layer in severe cold area provided by the utility model embodiment is flat to cover type flexibility water sealing structure, described soft
Property barrier coat 4 on rigid 5 surface layer of adhesive layer with a thickness of T1, the flexible barrier coating 4 is in the flexible bonding layer 6
Surface layer with a thickness of T2, then have following relationship:2.0mm≤T1≤4.0mm;T2 > T1.The flexible barrier coating 4 is in the modeling
Property 3 surface layer of caulking material with a thickness of T2, the maximum stage difference of reservoir level variation zone is H, then has following relationship:As H < 20m
When, T2=4.0mm;As 20m≤H < 50m, 4.0mm≤T2 < 5.0mm;As 50m≤H < 100m, 5.0mm≤T2 <
6.0mm.In above structure setting, the thickness of flexible barrier coating 4 is adjusted according to the maximum stage difference of reservoir level variation zone, it is full
The sealing demand of sufficient abutment joint 7, and intensity is higher, it is durable.
Slab joint surface layer in severe cold area provided by the utility model embodiment is flat to cover type flexibility water sealing structure, and rigidity is viscous
It connects layer 5 to be made of adhesives, preferably epoxy-like materials, scene passes through blade coating or roller coating one time molding, the thickness of adhesives
Less than 0.2mm, the fixing intensity of flexible barrier coating 4 and concrete slab 1 is greater than 2.5MPa or anti-greater than concrete slab 1
Tensile strength.The strong bond for realizing flexible barrier coating 4 Yu concrete slab 1 is arranged in above structure, further improves tight
It equals the structural strength for covering type flexibility water sealing structure and uses durability degree in cold area slab joint surface layer.
Slab joint surface layer in severe cold area provided by the utility model embodiment is flat to cover type flexibility water sealing structure, flexible glue
It connecing layer 6 to be made of flexible splicing material, preferred rubber or modified pitch class coating, scene is formed by blade coating or roller coating one time,
The thickness of flexible splicing material is less than 0.2mm, and flexible splicing material and the adhesive strength of concrete slab 1 are less than 0.5MPa.On
It states structure setting and ensure that and can produce the changing of the relative positions between flexible barrier coating 4 and concrete slab 1, improve the whole of leakage preventing structure
Body toughness and impact resistance.
Slab joint surface layer in severe cold area provided by the utility model embodiment is flat to cover type flexibility water sealing structure, concrete
Coarse aggregate is exposed in the upper surface polishing of panel 1, it is ensured that the strong bond of flexible barrier coating 4 and concrete slab 1.
In one embodiment, flexible barrier coating 4 is made of polyurea materials.Flexible barrier coating 4 selects polyurea materials
It is made, it is ensured that flexible barrier coating 4 has good anti-corrosive properties, barrier properties and abrasion resistant effect.Further, polyureas material
The tensile strength of material is greater than 10MPa, elongation at break is greater than 100%, water absorption rate less than 5%, and above-mentioned parameter setting can be further
Promote the performance of flexible barrier coating 4.
In one embodiment, elastic supporting member for supporting optical member 2 is rubber bar or sticking plaster.Rubber bar or sticking plaster (are at least wrapped in power
Include the self gravity of elastic supporting member for supporting optical member 2 and plasticity caulking material 3) under the action of good fit, prevent plasticity caulking material 3 from letting out
Dew;Meanwhile when flexible barrier coating 4 is squeezed, rubber bar or sticking plaster can provide certain elastic force, to a certain extent
It can prevent flexible barrier coating 4 from destroying, enhance severe cold area slab joint surface layer and put down and cover type flexibility water sealing structure
Structural strength.
Fig. 2, which is that slab joint surface layer in severe cold area provided by the preferred embodiment in the utility model is flat, covers type flexibility sealing knot
The installation procedure figure of structure.It is covered as shown in Fig. 2, slab joint surface layer in severe cold area provided by the preferred embodiment in the utility model is flat
The installation of type flexibility water sealing structure includes the following steps:
D01:Elastic supporting member for supporting optical member 2 is installed, elastic supporting member for supporting optical member 2 is installed at each 7 position of seam, and guarantee elastic supporting member for supporting optical member
2 are connected to the V-type part of seam 7;
D02:Plasticity caulking material 3 is inserted, plasticity caulking material 3 is filled up into filling slot;
D03:Concrete slab 1 is cleared up, polished the upper surface of 7 two sides of seam concrete slab 1, cleaned,
It dries;
D04:It is laid with rigid adhesive layer 5 and flexible bonding layer 6, the adhesives and flexible splicing material of brushing one fixed width
Material is respectively formed rigid adhesive layer 5 and flexible bonding layer 6;
D05:It is laid with flexible barrier coating 4, after the surface layer of rigid adhesive layer 5 and flexible bonding layer 6 is dried, is brushed flexible
Barrier coat 4, until the thickness of the flexible barrier coating 4 of different parts respectively reaches respective design value.
In one embodiment, the method for being laid with flexible barrier coating 4 includes at least one in spraying, blade coating or brushing
Kind.Above-mentioned laying method is simple and easy, facilitates operation.
In one embodiment, the layering of flexible barrier coating 4 is laid with, and is laid with one among the flexible barrier coating 4
Layer or two layers of tire base fabric.By the way that the tire base fabric is arranged, it can effectively enhance the anti-pressure ability and external force resistance of flexible barrier coating 4
Damage capability, while can guarantee that 4 thickness of flexible barrier coating is uniform.
Slab joint surface layer in severe cold area provided by the preferred embodiment in the utility model is flat to cover type flexibility water sealing structure
Installation method construction is simple, barrier performance are good, durability degree is high;It is suitable for severe cold area simultaneously.
In the present invention, term " first ", " second ", " third " are only used for the purpose of description, and should not be understood as
Indication or suggestion relative importance;Term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " peace
Dress ", " connected ", " connection ", the terms such as " fixation " shall be understood in a broad sense, can also be with for example, " connection " may be a fixed connection
It is to be detachably connected, or be integrally connected;" connected " can be directly connected, can also be indirectly connected through an intermediary.It is right
For those skilled in the art, can understand as the case may be above-mentioned term in the present invention specifically contain
Justice.
In the description of the utility model, it is to be understood that the orientation or positional relationship of the instructions such as term " on ", "lower" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or unit must have specific direction, be constructed and operated in a specific orientation, it is thus impossible to understand
For limitations of the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least the one of the utility model
In a embodiment or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment
Or example.Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (13)
1. a kind of severe cold area slab joint surface layer is flat to cover type flexibility water sealing structure, which is characterized in that including:
Concrete slab, there are seam between two adjacent block concrete panels, the top of the cross section of the seam is V-type;
Elastic supporting member for supporting optical member, the elastic supporting member for supporting optical member are connected to the V-type part of the seam, the side wall of the seam and described
Elastic supporting member for supporting optical member defines to form filling slot;
Plasticity caulking material, the plasticity caulking material are located in the filling slot;
Flexible barrier coating, the flexible barrier coating cover the filling slot and upper with two pieces of concrete slabs respectively
Surface bonding connection.
2. severe cold area slab joint according to claim 1 surface layer is flat to cover type flexibility water sealing structure, which is characterized in that two
The upper surface of concrete slab described in block is in the same plane.
3. severe cold area slab joint according to claim 1 surface layer is flat to cover type flexibility water sealing structure, which is characterized in that institute
Stating flexible barrier coating includes at least one layer of tire base fabric.
4. severe cold area slab joint according to claim 1 surface layer is flat to cover type flexibility water sealing structure, which is characterized in that institute
It states and is equipped with rigid adhesive layer and flexible bonding layer between flexible barrier coating and the upper surface of every piece of concrete slab;
The flexible barrier coating is adhesively fixed by the rigid adhesive layer with the concrete slab;The flexible barrier coating is logical
The flexible bonding layer is crossed to be connected with the concrete slab;Wherein, the flexible bonding layer is relative to the rigid adhesive layer
It is arranged close to the filling slot.
5. severe cold area slab joint according to claim 4 surface layer is flat to cover type flexibility water sealing structure, which is characterized in that institute
The width of flexible bonding layer is stated no more than 30cm;The width of the rigidity adhesive layer is not less than 20cm.
6. severe cold area slab joint according to claim 4 surface layer is flat to cover type flexibility water sealing structure, which is characterized in that institute
Flexible barrier coating is stated on the rigid adhesive layer surface layer with a thickness of T1, the flexible barrier coating is in the flexible bonding layer
Surface layer with a thickness of T2, then have following relationship:
2.0mm≤T1≤4.0mm;
T2 > T1.
7. severe cold area slab joint according to claim 6 surface layer is flat to cover type flexibility water sealing structure, which is characterized in that institute
Flexible barrier coating is stated on plasticity caulking material surface layer with a thickness of T2, the maximum stage difference of reservoir level variation zone is H,
Then there is following relationship:
As H < 20m, T2=4.0mm;
As 20m≤H < 50m, 4.0mm≤T2 < 5.0mm;
As 50m≤H < 100m, 5.0mm≤T2 < 6.0mm.
8. severe cold area slab joint according to claim 4 surface layer is flat to cover type flexibility water sealing structure, which is characterized in that institute
Rigid adhesive layer is stated to be made of adhesives, the thickness of the adhesives is less than 0.2mm, the flexible barrier coating with it is described
The adhesive strength of concrete slab is greater than 2.5MPa or the tensile strength greater than the concrete slab.
9. severe cold area slab joint according to claim 4 surface layer is flat to cover type flexibility water sealing structure, which is characterized in that institute
It states flexible bonding layer to be made of flexible splicing material, the thickness of the flexible splicing material is less than 0.2mm, the flexible splicing material
The adhesive strength of material and the concrete slab is less than 0.5MPa.
10. severe cold area slab joint according to claim 1 surface layer is flat to cover type flexibility water sealing structure, which is characterized in that
Coarse aggregate is exposed in the upper surface polishing of the concrete slab.
11. severe cold area slab joint according to claim 1 surface layer is flat to cover type flexibility water sealing structure, which is characterized in that
The flexible barrier coating is made of polyurea materials.
12. severe cold area slab joint according to claim 11 surface layer is flat to cover type flexibility water sealing structure, which is characterized in that
The tensile strength of the polyurea materials is greater than 10MPa, elongation at break is greater than 100%, water absorption rate less than 5%.
13. slab joint surface layer in severe cold area described in any one of -12 is flat according to claim 1 covers type flexibility sealing knot
Structure, which is characterized in that the elastic supporting member for supporting optical member is rubber bar or sticking plaster.
Priority Applications (1)
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CN201820109047.5U CN208105186U (en) | 2018-01-23 | 2018-01-23 | Severe cold area slab joint surface layer is flat to cover type flexibility water sealing structure |
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CN201820109047.5U CN208105186U (en) | 2018-01-23 | 2018-01-23 | Severe cold area slab joint surface layer is flat to cover type flexibility water sealing structure |
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CN201820109047.5U Expired - Fee Related CN208105186U (en) | 2018-01-23 | 2018-01-23 | Severe cold area slab joint surface layer is flat to cover type flexibility water sealing structure |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108221866A (en) * | 2018-01-23 | 2018-06-29 | 中国水利水电科学研究院 | Severe cold area slab joint surface layer, which is put down, covers type flexibility water sealing structure and installation method |
-
2018
- 2018-01-23 CN CN201820109047.5U patent/CN208105186U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108221866A (en) * | 2018-01-23 | 2018-06-29 | 中国水利水电科学研究院 | Severe cold area slab joint surface layer, which is put down, covers type flexibility water sealing structure and installation method |
CN108221866B (en) * | 2018-01-23 | 2023-11-17 | 中国水利水电科学研究院 | Panel joint surface layer flat-covering type flexible water stop structure in severe cold region and mounting method |
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