CN209082427U - A kind of New-old concrete sealing connection structure having pressure head - Google Patents
A kind of New-old concrete sealing connection structure having pressure head Download PDFInfo
- Publication number
- CN209082427U CN209082427U CN201821539408.6U CN201821539408U CN209082427U CN 209082427 U CN209082427 U CN 209082427U CN 201821539408 U CN201821539408 U CN 201821539408U CN 209082427 U CN209082427 U CN 209082427U
- Authority
- CN
- China
- Prior art keywords
- new
- layer
- concrete layer
- pressure head
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Building Environments (AREA)
Abstract
The utility model relates to a kind of New-old concrete sealing connection structures for having pressure head, including novel concrete layer and former concrete layer, construction joint is provided between the novel concrete layer and former concrete layer, the original concrete layer is carved with groove, new rubber fastening band is placed in the groove, waterproof fixing layer is filled in the groove, the other end of the rubber fastening band is fixed in former concrete layer, polyethylene foam sheet is filled in the construction joint, construction joint upstream face surface is coated with polyureas elastic coating, place expansion sealing strip in polyureas elastic coating top, polysulfide sealant layer is applied on expansion sealing strip top.The utility model guarantees water-stagnating effect using the double-deck sealing.
Description
Technical field
The utility model relates to New-old concrete sealing connection structure fields, have the new of pressure head more particularly, to a kind of
Old concrete sealing connection structure.
Background technique
With increasing rapidly for national economy, the building such as sluice, pumping plant, bridge, tunnel that some the seventies and eighties build
Object aging, it is long neglected and in disrepair, its effect cannot be normally played, some dismountings are rebuild, but some fabric structure is good, still
It is available, but when encountering the connection of New-old concrete, it often the problem of a headache, and once handles bad, will lead to
Leakage.For general joints between fresh and old concrete sealing protective slope in canal frequently with polysulfide sealant joint filling, building such as barricade, culvert is normal
Using expansion sealing strip.But for having biggish pressure head and important engineering, using common sealing mode, once
Lose effectiveness in sealing will cause more serious consequence.
Utility model content
The purpose of this utility model is to provide a kind of New-old concrete sealing connection structures for having pressure head, have
The effect of highly effective and safe.
The technical solution of the utility model includes:
A kind of New-old concrete sealing connection structure having pressure head, including novel concrete layer and former concrete layer, institute
It states and is provided with construction joint between novel concrete layer and former concrete layer, the original concrete layer is carved with groove, puts in the groove
New rubber fastening band is set, fills waterproof fixing layer in the groove, the other end of the rubber fastening band is fixed on former coagulation
In soil layer, polyethylene foam sheet is filled in the construction joint, construction joint upstream face surface is coated with polyureas elastic coating,
Expansion sealing strip is placed on polyureas elastic coating top, applies polysulfide sealant layer on expansion sealing strip top.
Further, the waterproof fixing layer filled in the groove is the C40 pea gravel concreten mixed with aqueous epoxy resins.
Further, an expansion line is provided at left and right sides of the rubber fastening band.
Further, the thickness for the polyureas elastic coating that the construction joint upstream face uses is not less than 1.5mm.
Further, the type expansion sealing strip is BW-91 type expansion sealing strip.
The utility model has the beneficial effects that
The expansion line of water-swellable is provided at left and right sides of rubber fastening band, expansion line, which has, delays swollen property；Anti- hydropexis
Layer using mixed with aqueous epoxy resins and swelling agent concrete, make the resistance to compression of concrete, split drawing, flexural strength is all improved,
The early strength of especially concrete is greatly improved, and in addition the incorporation of aqueous epoxy resins makes the crack resistance of concrete
There is obvious raising with impermeability, and reduces the contraction of concrete.
Polyureas elastic coating is the latest development of construction waterproof technology, because its have it is environmentally friendly, resistant to chemical etching, high-intensitive,
High-impermeable, wear-resisting, thermostabilization is good, flexible shock resistance, it is seamless, strong with concrete adhesive force the advantages that, its general tensile strength
>=20Mpa, elongation at break >=450%, tearing strength >=50KN/m, adhesion strength >=2.5Mpa, 0.4 Mpa, therefore polyureas bullet
Property coating be a kind of durable ideal sealing material, it and BW-91 type expansion sealing strip, polysulfide sealant combination are one
It rises, forms a kind of efficient sealing mode.
By polysulfide sealant, polyurea elastomer, expansion sealing strip and several waterproof materials of rubber fastening band with expansion line
Integrated use and using the C40 pea gravel concreten mixed with aqueous epoxy resins, so that it is formed numerous obstacles to infiltration, be a kind of
Efficient New-old concrete sealing connection type.It is particularly suitable for the old and new's coagulation of pressure head and especially important engineering position
Native sealing connection type.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In attached drawing, 1, polysulfide sealant layer；2, polyureas elastic coating；3, expansion sealing strip；4, rubber fastening band；5, waterproof
Fixing layer；6, polyethylene foam sheet；7, construction joint；8, novel concrete layer；9, former concrete layer；10, groove.
Specific embodiment
In order to make the utility model implement technical means, creation characteristic, reach purpose and effect is easy to understand, below
It is sub in conjunction with specific embodiments, the utility model is further described.
As shown in Figure 1, a kind of New-old concrete sealing connection structure for having pressure head, including former concrete layer 8 and original
Concrete layer pipe 9 is provided with construction joint 7, the original concrete layer pipe 9 between the original concrete layer 8 and former concrete layer pipe 9
It is inside carved with groove 10, rubber fastening band 4 is placed in the groove 10, fills waterproof fixing layer 5, the rubber in the groove 10
The other end of waterstop 4 is fixed in former concrete layer 8, is filled with polyethylene foam sheet 6, the construction in the construction joint 7
It stitching 7 upstream face one end inner surfaces and is coated with polyureas elastic coating 2, expansion sealing strip 3 is placed on 2 top of polyureas elastic coating,
Polysulfide sealant layer 1 is applied on 3 top of expansion sealing strip.
Further, the waterproof fixing layer 5 filled in the groove 10 is the C40 microlith coagulation mixed with aqueous epoxy resins
Soil.
Further, an expansion line is provided at left and right sides of the rubber fastening band 4.
Further, the thickness for the polyureas elastic coating 2 that 7 upstream face of construction joint uses is not less than 1.5mm.
Further, the expansion sealing strip 3 is BW-91 type expansion sealing strip.
Work progress is as follows:
1, outer ring water seal design: mixed to former concrete layer pipe 9 by the position and design structure size for disposing sealing in figure in advance
Solidifying soil progress is lossless to be cut into groove 10, and opposite joint face dabbing；Then floating dust is rinsed well with high pressure water, with expansion line
After rubber fastening band 4 is fixed by position in figure, the C40 pea gravel concreten waterproof fixing layer 5 mixed with aqueous epoxy resins is filled.It mixes
There is incorporation 8%-15%UEA swelling agent in the C40 pea gravel concreten of aqueous epoxy resins, the maximum particle diameter of rubble is not more than 16mm；
Rubber fastening band 4 uses the waterstop with twice water-swellable threads, and expansion line has protective effect, and has and delay swollen property, only
The connector of water band is using vulcanization connection, it is ensured that connector is firm and leakproofness.
2, it inner ring water seal design: after the completion of the former concrete layer 8 being connected with former concrete layer pipe 9 pours, will need to brush
The pipe shaft concrete surface polishing of former concrete layer pipe 9 and former concrete layer 8 in 2 range of polyureas elastic coating is clean, makes basal plane
Expose new stubble, and require basal plane it is smooth, it is firm, without dirt.For being polished in construction joint 7 with grinding wheel opposite joint face, make seam face
It is clean firm, and reach the depth of processing.Basal plane floating dust is rinsed well with high pressure water, after qualified by inspection, is brushed after surface drying
Moist-type interfacial agents, base's interfacial agents should solidify normally, brush uniformly, without holiday, without accumulation.
3, filled polyethylene closed-cell foam plate 6 in construction joint 7, the density requirements of ethylene closed cell cystosepiment 6 reach
115kg/m3, play mould and reach 1MPa or more.
4, polyureas elastic coating 2 sprays: the construction of polyureas elastic coating 2 can be used special equipment spraying and can also manually brush,
After interfacial agents surface drying can brushing polyureas elastic coating 2, brushing pass is preferably 3~6 times, until reaching the thickness of 1.5mm；It is poly-
The spraying Best Times of urea elastic coating 2 surface drying should carry out after interfacial agents brushing in tack-free to 24 hours, if interval is super
24 hours are spent, should construct one of interfacial agents again on the day before spray polyurea elastomer coating.
5, it after the spraying completion of polyureas elastic coating 2, is coated in the construction joint 7 of urea elastic coating 2 and places expansion sealing strip 3
With 1 envelope construction joint 7 of polysulfide sealant layer, polysulfide sealant 1 requires viscous tensile strength to be greater than 0.5MPa, and elongation is greater than 300%；It needs
With thermal-oxidative aging property test index.
The ingenious combination of several sealing materials forms a kind of New-old concrete sealing connection structure for having pressure head.This
The kind sealing practice ensure that the safety of New-old concrete sealing because its water-stagnating effect is good to greatest extent.
It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific implementation of the utility model
Example, and in practical applications, can to it, various changes can be made in the form and details, without departing from the essence of the utility model
Mind and range.
Claims (5)
1. a kind of New-old concrete sealing connection structure for having pressure head, it is characterised in that: mixed including novel concrete layer and original
Solidifying soil layer is provided with construction joint between the novel concrete layer and former concrete layer, the original concrete layer is carved with groove, described
New rubber fastening band is placed in groove, fills waterproof fixing layer in the groove, the other end of the rubber fastening band is fixed
In novel concrete layer, polyethylene foam sheet is filled in the construction joint, construction joint upstream face surface is coated with polyureas
Expansion sealing strip is placed on elastic coating, polyureas elastic coating top, applies polysulfide sealant layer on expansion sealing strip top.
2. a kind of New-old concrete sealing connection structure for having pressure head according to claim 1, it is characterised in that: institute
Stating the waterproof fixing layer filled in groove is the C40 pea gravel concreten mixed with aqueous epoxy resins.
3. a kind of New-old concrete sealing connection structure for having pressure head according to claim 1, it is characterised in that: institute
It states and is provided with an expansion line at left and right sides of rubber fastening band.
4. a kind of New-old concrete sealing connection structure for having pressure head according to claim 1, it is characterised in that: institute
The thickness of the polyureas elastic coating of construction joint upstream face use is stated not less than 1.5mm.
5. a kind of New-old concrete sealing connection structure for having pressure head according to claim 1, it is characterised in that: institute
Stating expansion sealing strip is BW-91 type expansion sealing strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821539408.6U CN209082427U (en) | 2018-09-20 | 2018-09-20 | A kind of New-old concrete sealing connection structure having pressure head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821539408.6U CN209082427U (en) | 2018-09-20 | 2018-09-20 | A kind of New-old concrete sealing connection structure having pressure head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209082427U true CN209082427U (en) | 2019-07-09 |
Family
ID=67117033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821539408.6U Active CN209082427U (en) | 2018-09-20 | 2018-09-20 | A kind of New-old concrete sealing connection structure having pressure head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209082427U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258649A (en) * | 2019-07-12 | 2019-09-20 | 中冶天工集团有限公司 | One kind, which connects, builds engineering Underground Construction seam water-tight device and construction method |
| CN110359445A (en) * | 2019-07-22 | 2019-10-22 | 中国水利水电第五工程局有限公司 | A kind of cut-pff wall top rubber water sealing structure and its construction method |
| CN110983982A (en) * | 2019-12-19 | 2020-04-10 | 中铁六局集团天津铁路建设有限公司 | Construction method of water seepage prevention system for settlement joint between frame bridge and retaining wall |
| CN112342876A (en) * | 2020-10-30 | 2021-02-09 | 中国五冶集团有限公司 | Retaining structure for foam concrete pouring rapid partition construction and construction method thereof |
| CN112343084A (en) * | 2021-01-11 | 2021-02-09 | 沈阳建筑大学 | Waterproof underground pipe gallery |
| CN112443720A (en) * | 2020-12-09 | 2021-03-05 | 无锡华毅管道有限公司 | Repair method for leakage of prestressed concrete cylinder pipe joint |
| CN115182387A (en) * | 2022-06-13 | 2022-10-14 | 武汉三源特种建材有限责任公司 | New and old concrete interface waterproof structure and construction method |
-
2018
- 2018-09-20 CN CN201821539408.6U patent/CN209082427U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258649A (en) * | 2019-07-12 | 2019-09-20 | 中冶天工集团有限公司 | One kind, which connects, builds engineering Underground Construction seam water-tight device and construction method |
| CN110359445A (en) * | 2019-07-22 | 2019-10-22 | 中国水利水电第五工程局有限公司 | A kind of cut-pff wall top rubber water sealing structure and its construction method |
| CN110983982A (en) * | 2019-12-19 | 2020-04-10 | 中铁六局集团天津铁路建设有限公司 | Construction method of water seepage prevention system for settlement joint between frame bridge and retaining wall |
| CN112342876A (en) * | 2020-10-30 | 2021-02-09 | 中国五冶集团有限公司 | Retaining structure for foam concrete pouring rapid partition construction and construction method thereof |
| CN112443720A (en) * | 2020-12-09 | 2021-03-05 | 无锡华毅管道有限公司 | Repair method for leakage of prestressed concrete cylinder pipe joint |
| CN112343084A (en) * | 2021-01-11 | 2021-02-09 | 沈阳建筑大学 | Waterproof underground pipe gallery |
| CN115182387A (en) * | 2022-06-13 | 2022-10-14 | 武汉三源特种建材有限责任公司 | New and old concrete interface waterproof structure and construction method |
| CN115182387B (en) * | 2022-06-13 | 2024-04-09 | 武汉三源特种建材有限责任公司 | Waterproof structure of new and old concrete interface and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209082427U (en) | A kind of New-old concrete sealing connection structure having pressure head | |
| CN107060116B (en) | A kind of high-pressure slip-casting blocking method for building settlement seam | |
| KR101188742B1 (en) | A Method for Waterproofing and Repairing of Crack in Structure | |
| CN109989490A (en) | Discharge structure expansion joint surface watertight seal resistant abrasion safeguard structure and construction method | |
| KR100971910B1 (en) | Waterproof composition for concrete structure | |
| CN106958716B (en) | A kind of PCCP pipe joint caulking joint construction method | |
| KR100989919B1 (en) | Repair method for concrete joint part | |
| CN104746479A (en) | Diversion tunnel concrete water seepage leaking stoppage construction method | |
| CN207904991U (en) | A kind of underground engineering repairing concrete crack construction | |
| CN103452081B (en) | A kind of construction method of flexible composite impermeable layer of upstream face of high arch dam | |
| CN209144746U (en) | A kind of replaceable water sealing structure of presser type | |
| KR20160125654A (en) | Repairing Method for Crack of Concrete Structure | |
| CN103420642A (en) | Abrasion-resisting mortar repairing material with high elasticity and construction technology | |
| CN203960812U (en) | Hydraulic concrete structure shrinkage joint embedded water stop band repair structure | |
| CN207878394U (en) | The repairing structure at the expansion joint of pressurized water transmission box culvert | |
| CN106116252B (en) | The filleting anti-seepage method of high resiliency antiseepage filler and concrete member expansion joint | |
| CN105350491A (en) | High-attitude-area dam upstream face antiseepage coating and construction method thereof | |
| CN205224089U (en) | Basement waterproofing side wall | |
| CN210151972U (en) | Water-stopping abrasion-resisting protection structure for surface layer of expansion joint of drainage structure | |
| CN105839522B (en) | A kind of sealant of bridge extension joint saves construction method from damage | |
| CN203960811U (en) | Concrete for hydraulic structure member expansion joint waterstop syndeton | |
| CN104927751B (en) | Plugging agent special for building roof crack | |
| CN205296105U (en) | Field irrigation is with " U " shape concrete water conservation channel | |
| CN204386625U (en) | A kind of railway tunnel hoop seam uses steel plate self-adhesion water stop band | |
| CN207749607U (en) | Structure and pipeline for PCCP pipe bell and spigot seams |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |