CN104018526B - EPR deformation joint repairs water-stopping structure and construction method thereof - Google Patents
EPR deformation joint repairs water-stopping structure and construction method thereof Download PDFInfo
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- CN104018526B CN104018526B CN201410226014.5A CN201410226014A CN104018526B CN 104018526 B CN104018526 B CN 104018526B CN 201410226014 A CN201410226014 A CN 201410226014A CN 104018526 B CN104018526 B CN 104018526B
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- 238000010276 construction Methods 0.000 title claims abstract description 23
- 230000008439 repair process Effects 0.000 title claims abstract description 19
- 239000003822 epoxy resin Substances 0.000 claims abstract description 57
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 57
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 239000004568 cement Substances 0.000 claims abstract description 25
- 230000004888 barrier function Effects 0.000 claims abstract description 23
- 239000004567 concrete Substances 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 241000208202 Linaceae Species 0.000 claims description 9
- 235000004431 Linum usitatissimum Nutrition 0.000 claims description 9
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 239000003085 diluting agent Substances 0.000 claims description 6
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 5
- YSUQLAYJZDEMOT-UHFFFAOYSA-N 2-(butoxymethyl)oxirane Chemical group CCCCOCC1CO1 YSUQLAYJZDEMOT-UHFFFAOYSA-N 0.000 claims description 3
- AOBIOSPNXBMOAT-UHFFFAOYSA-N 2-[2-(oxiran-2-ylmethoxy)ethoxymethyl]oxirane Chemical compound C1OC1COCCOCC1CO1 AOBIOSPNXBMOAT-UHFFFAOYSA-N 0.000 claims description 3
- 229910002012 Aerosil® Inorganic materials 0.000 claims description 3
- 229930185605 Bisphenol Natural products 0.000 claims description 3
- 239000004604 Blowing Agent Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- IMUDHTPIFIBORV-UHFFFAOYSA-N aminoethylpiperazine Chemical compound NCCN1CCNCC1 IMUDHTPIFIBORV-UHFFFAOYSA-N 0.000 claims description 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 3
- 238000005056 compaction Methods 0.000 claims description 3
- 239000007822 coupling agent Substances 0.000 claims description 3
- 239000013530 defoamer Substances 0.000 claims description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 3
- 229920001451 polypropylene glycol Polymers 0.000 claims description 3
- 229910000077 silane Inorganic materials 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 230000002045 lasting effect Effects 0.000 abstract description 2
- 230000003405 preventing effect Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 20
- 238000005516 engineering process Methods 0.000 description 10
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000004078 waterproofing Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000010412 perfusion Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 206010019233 Headaches Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011433 polymer cement mortar Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
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- Working Measures On Existing Buildindgs (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a kind of EPR deformation joint and repair water-stopping structure and construction method thereof, described deformation joint is formed between two concrete, and described water-stopping structure comprises the sealing barrier be made up of high-early (strength) cement, the epoxy resin filling layer be located at the epoxy resin impervious barrier between two described concrete, the sealing layer be made up of high-early (strength) cement and be poured in described deformation joint; Described sealing barrier is located at described deformation joint rear wall, and sealing layer is located at described deformation joint antetheca.Structure of the present invention is simple, easy construction, leak preventing effect lasting stability.
Description
Technical field
The invention belongs to road construction field, especially relate to a kind of EPR deformation joint and repair water-stopping structure and construction method thereof.
Background technology
Along with the further propelling of urbanization process, Development of Underground Engineering space is more and more extensive, and the thing followed is underground project waterproof problem, has a strong impact on workmanship, the difficult point of deformation joint underground construction antiseep especially.Because deformation joint is in continuous motion change, theoretical by waterproofing design again, waterproofing materials, the impact of construction technology, deformation joint is easy to occur percolating water phenomenon, and deformation joint leak stopping is always the problem of having a headache most.
Commonplace in practice of construction, general unit in charge of construction is when processing percolating water, and employing water glass, cement tamp, also useful leak stopping king, also useful polymer cement mortar etc. method.But said method all belongs to rigidity waterproofing, because tensile strength is low, be not suitable with the needs of malformation, still occur infiltration.Though polyurethane grouting treatment belongs to elastomeric material, viscosity is comparatively large, and concrete castability is restricted, and intensity is lower, does over again many, easily again occur percolating water over time after construction.
A kind of effective underground construction deformation joint of research and development is repaired water-stop technology and will be with a wide range of applications.
Summary of the invention
The present invention, in order to overcome the deficiencies in the prior art, provides a kind of reliable in quality and the EPR deformation joint of easy construction repairing water-stopping structure and construction method thereof.
To achieve these goals, the present invention is by the following technical solutions: a kind of EPR deformation joint repairs water-stopping structure, described deformation joint is formed between two concrete, and described water-stopping structure comprises the sealing barrier be made up of high-early (strength) cement, the epoxy resin filling layer be located at the epoxy resin impervious barrier between two described concrete, the sealing layer be made up of high-early (strength) cement and be poured in described deformation joint; Described sealing barrier is located at described deformation joint rear wall, and sealing layer is located at described deformation joint antetheca.
Further, described sealing layer is provided with grouting port and exhaust opening.
Flax silk layer is filled with in described deformation joint.
The present invention also provides a kind of EPR deformation joint to repair the construction method of water-stopping structure, comprises the steps:
1) on the deformation joint leaked, boring, until drill, is injected high-early (strength) cement slurry until block and leak as standard, is formed sealing barrier after the wall of deformation joint;
2) check the concrete compaction rate of deformation joint both sides, find the seepage water spot in the layer of concrete of deformation joint both sides, with epoxy resin reinforcing to form impervious barrier;
3) after deformation joint fluting takes out polyphenyl plate, fill flax silk simultaneously, then adopt in the front side of deformation joint high-early (strength) cement to form sealing layer, and the grouting port left on sealing layer for grouting and gas outlet;
4) in the middle of deformation joint, inject epoxide resin material to form epoxy resin filling layer by grouting port, after the solidification of this epoxide resin material, namely form described EPR deformation joint repair water-stopping structure.
As preferably, described step 2) epoxide resin material of epoxy resin packed layer is made up of A, B two components, and component A comprises epoxy resin 100 parts, reactive diluent 10 parts, flexibilizer 29 parts, coupling agent 1 part; B component comprises 22 parts, curing compound, tough curing agent 6.5 parts, blowing agent 2 parts, defoamer 0.5 part, rheological agent 4 parts; Described number is number meter by weight, and the weight ratio of component A and B component is 4:1; The preparation method of this epoxide resin material comprises the steps:
1) each composition of component A is proportionally configured, place mix and blend 5-8min in same container at normal temperatures, to evenly, divide a bucket to pack; Each composition of B component is proportionally configured, places mix and blend 5-8min in same container at normal temperatures, to evenly, divide a bucket to pack;
2) proportionally configured by each composition of filler, each composition is independently packed;
3) the component A be adjusted to, B component are placed in same container according to the ratio of 4:1 at normal temperatures, mix and blend 2-3min, to evenly, namely obtain the neo-epoxy resin material of described perfusion.
As preferably, described reactive diluent is butyl glycidyl ether, and flexibilizer is polypropylene glycol diglycidyl ether, silane coupler is γ-glycidol ether propyl trimethoxy silicane, curing compound is N-aminoethyl piperazine, and tough curing agent is polyetheramine, and rheological agent is aerosil.
As preferably, described epoxy resin is bisphenol E-type epoxy resin.
The present invention is when when underground structure original deformation joint water slop failure, adopt one to have flexile epoxy resin and replace original water-stopping structure as deformation joint central filler material, its pliability feature meets the Deformation Demands of deformation joint, and the physical property of its solidfied material meets water-stopping seepage-proof demand simultaneously.Before this epoxy resin of filling, by injecting high-early (strength) cement slurry to form one deck sealing barrier after the wall of deformation joint, utilizing the plasticity of cement, to improve the soil layer property after wall, thus reaching i.e. reinforcing soil layer but also setting up the object of temporary leaking water barricade; Second step checks the concrete compaction rate of deformation joint both sides, finds deformation joint both sides concrete seepage water spot injection ring epoxy resins to form impervious barrier, utilizes the Thief zone performance of epoxy resin to carry out anti-seepage reinforcing; 3rd step need be taken out polyphenyl plate at deformation joint fluting and be filled flax silk simultaneously, then adopts microdilatancy high-early (strength) cement to seal, and installs grouting port and gas outlet; Last injection in the middle of deformation joint has flexile epoxy resin, and after the solidification of its epoxide resin material, institute is formed is exactly complete EPR deformation joint repairing water-stopping structure.
The invention is characterized in: (1) this water-stop technology is a kind of repairing technique adopted when original deformation joint water slop failure; (2) the neo-epoxy resin of institute's cementation of fissures sealing is made up of A, B two components, can give birth to curing reaction by hybrid concurrency at normal temperatures, and reaction speed can control within a certain period of time; (3) must inject cement paste after distortion slotted wall before the enforcement of this technology to invade to prevent water, set up first waterproof barrier; (4) this technology also must use hydrophily Thief zone epoxy resin to carry out anti-seepage reinforcing by the concrete in deformation joint both sides before implementing; (5) need take out polyphenyl plate at deformation joint fluting and fill flax silk simultaneously, then with the sealing of microdilatancy high-early (strength) cement, and grouting port and gas outlet are installed.
Present invention also offers a kind of neo-epoxy resin material to be used for filling deformation joint, its performance meets following table 1:
Table 1:
The characteristic sum performance requirement of pliability neo-epoxy resin
The high-early (strength) cement adopted in the present invention can commercially be purchased, and the performance requirement of its demand fulfillment is with reference to following table 2.
Table 2:
High-early (strength) cement index
| Fineness | ＜10％ | 0.080mm square hole screen tails over |
| Time of setting | ＞5 | min |
| ＜40 | min | |
| Compressive strength/MPa | 4h | 3.6 |
| 8h | 12 | |
| 1d | 20 | |
| Rupture strength/MPa | 4h | 1.4 |
| 8h | 2.2 | |
| 1d | 3.5 |
Can commercially purchase for the Thief zone epoxide resin material at concrete seepage water spot place, deformation joint both sides in the present invention, be prior art, and its performance meets table 3 and requires.
Table 3:
The characteristic sum performance requirement of Thief zone epoxy resin
In sum, the present invention has the following advantages: this water-stopping structure is simple, easy construction, and leak preventing effect is lasting, stable.
Accompanying drawing explanation
Fig. 1 is water-stopping structure schematic diagram of the present invention.
Fig. 2 is the partial schematic diagram of water-stopping structure of the present invention.
Detailed description of the invention
Better the present invention program is understood in order to make those skilled in the art person, below in conjunction with the embodiment of the present invention, clear, complete description is carried out to the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
Embodiment 1:
As shown in Figure 1, 2, a kind of EPR deformation joint repairs water-stopping structure, described deformation joint 11 is formed between two concrete 12, and described water-stopping structure comprises the sealing barrier 21 be made up of high-early (strength) cement, the epoxy resin filling layer 25 be located at the epoxy resin impervious barrier 22 between two described concrete 12, the sealing layer 24 be made up of high-early (strength) cement and be poured in described deformation joint; Described sealing barrier 21 is located at described deformation joint 11 rear wall, sealing layer 24 is located at described deformation joint 11 antetheca, is filled with flax silk layer in deformation joint, described sealing layer 24 is worn and has penetrated a Grouting Pipe 241, Grouting Pipe be provided with grouting port and, sealing layer is also provided with the exhaust opening for getting rid of gas.
Embodiment 2:
Certain community underground automobile garage deformation joint is seriously badly in need of because former water slop failure leaks repairing:
Designing requirement: adopt EPR deformation joint to repair water-stop technology and repair deformation joint, meet the normal use of underground automobile garage deformation joint.
Concrete implementation step:
(1) on the deformation joint leaked, boring, until drill, installs grouting port, and the rear wall to deformation joint injects high-early (strength) cement slurry to form sealing barrier, and injection rate is greater than every meter of 100kg, leaks as standard until block, and sets up first waterproof barrier;
(2) find the concrete seepage water spot in deformation joint both sides, repair with the epoxy resin of hydrophilic Thief zone, to form one deck impervious barrier, be able to sealing and reinforcement, this epoxy resin is the current material with hydrophilic Thief zone;
(3) take out polyphenyl plate at deformation joint fluting and fill flax silk simultaneously, then with the sealing of microdilatancy high-early (strength) cement, form sealing layer, before injection high-early (strength) cement, a Grouting Pipe is first installed, this Grouting Pipe one end is stretched in deformation joint, the other end through sealing layer 24, and reserves a gas outlet on sealing layer.
Before construction, first configure described step 2) epoxide resin material of epoxy resin packed layer, it is made up of A, B two components, and component A comprises epoxy resin 100 parts, reactive diluent 10 parts, flexibilizer 29 parts, coupling agent 1 part; B component comprises 22 parts, curing compound, tough curing agent 6.5 parts, blowing agent 2 parts, defoamer 0.5 part, rheological agent 4 parts; Described number is number meter by weight, and the weight ratio of component A and B component is 4:1; Wherein said reactive diluent is butyl glycidyl ether, flexibilizer is polypropylene glycol diglycidyl ether, silane coupler is γ-glycidol ether propyl trimethoxy silicane, curing compound is N-aminoethyl piperazine, tough curing agent is polyetheramine, rheological agent is aerosil, and described epoxy resin is bisphenol E-type epoxy resin.
Preparation method is as follows:
1) each composition of component A is proportionally configured, place mix and blend 5-8min in same container at normal temperatures, to evenly, divide a bucket to pack; Each composition of B component is proportionally configured, places mix and blend 5-8min in same container at normal temperatures, to evenly, divide a bucket to pack;
2) proportionally configured by each composition of filler, each composition is independently packed;
3) the component A be adjusted to, B component are placed in same container according to the ratio of 4:1 at normal temperatures, mix and blend 2-3min, to evenly, namely obtain the neo-epoxy resin material of described perfusion.
Engineering construction: will prepare neo-epoxy resin material, adopts low-pressure grouting machine to inject in deformation joint, until fill by Grouting Pipe.The characteristic sum performance of this neo-epoxy resin material should meet the regulation of table 4.
Table 4:
The characteristic sum performance requirement of pliability neo-epoxy resin
Health and time-based maintenance, reach designing requirement through 72 hours epoxy resin intensity, and such EPR deformation joint is repaired water-stop technology and completed.But due to sedimentation, concretely to expand with heat and contract with cold, deformation joint is in change all the time, causes middlely producing minute crack, finally cause there is drainage, therefore want time-based maintenance.
Embodiment 3:
Metro station deformation joint occurs that Seepage is badly in need of repairing
Designing requirement: adopt EPR deformation joint to repair water-stop technology and repair deformation joint, meet deformation joint sealing and Deformation Demands.
Concrete enforcement:
(1) on the deformation joint leaked, boring is until drill, and install grouting port and inject high-early (strength) cement slurry, injection rate is greater than every meter of 100kg, leaks as standard, set up first waterproof barrier to block.
(2) find deformation joint both sides concrete and whether have constructional deficiency, be able to sealing and reinforcement with Thief zone epoxy resin.
(3) take out polyphenyl plate at deformation joint fluting and fill flax silk simultaneously, then with micro-expansion cement sealing, and grouting port and gas outlet are installed.
(4) engineering construction: the neo-epoxy resin material preparing toughness according to method in embodiment 2 and proportioning, the regulation of its performance requirement demand fulfillment table 5, then adopt high-pressure grout injector in deformation joint, to inject this neo-epoxy resin material, until fill by Grouting Pipe.
Table 5:
The characteristic sum performance requirement of pliability neo-epoxy resin
Health and time-based maintenance, reach designing requirement through 72 hours epoxy resin intensity, and such EPR deformation joint is repaired water-stop technology and completed deformation joint sealing reinstatement works task.But due to sedimentation, concretely to expand with heat and contract with cold, deformation joint is in change all the time, causes middlely producing minute crack, finally cause there is drainage, therefore want time-based maintenance.
Claims (5)
1. an EPR deformation joint repairs water-stopping structure, described deformation joint (11) is formed between two concrete (12), it is characterized in that: described water-stopping structure comprises the sealing barrier (21) be made up of high-early (strength) cement, the epoxy resin filling layer (25) be located at the epoxy resin impervious barrier (22) between described two concrete (12), the sealing layer (24) be made up of high-early (strength) cement and be poured in described deformation joint; Described sealing barrier (21) is located at described deformation joint (11) rear wall, and sealing layer (24) is located at described deformation joint (11) antetheca; Described sealing layer (24) is provided with grouting port and exhaust opening, is filled with flax silk layer in described deformation joint.
2. EPR deformation joint as claimed in claim 1 repairs the construction method of water-stopping structure, it is characterized in that: comprise the steps:
1) on the deformation joint leaked, boring, until drill, is injected high-early (strength) cement slurry until block and leak as standard, is formed sealing barrier (21) after the wall of deformation joint;
2) check the concrete compaction rate of deformation joint both sides, find the seepage water spot in the layer of concrete of deformation joint both sides, with epoxy resin reinforcing to form impervious barrier (22);
3) after deformation joint fluting takes out polyphenyl plate, fill flax silk simultaneously, then adopt in the front side of deformation joint high-early (strength) cement to form sealing layer (24), and the grouting port left on sealing layer for grouting and gas outlet;
4) in the middle of deformation joint, inject epoxide resin material to form epoxy resin filling layer (25) by grouting port, after the solidification of this epoxide resin material, namely form described EPR deformation joint repair water-stopping structure.
3. EPR deformation joint according to claim 2 repairs the construction method of water-stopping structure, it is characterized in that: described step 2) epoxide resin material of epoxy resin packed layer is made up of A, B two components, and component A comprises epoxy resin 100 parts, reactive diluent 10 parts, flexibilizer 29 parts, coupling agent 1 part; B component comprises 22 parts, curing compound, tough curing agent 6.5 parts, blowing agent 2 parts, defoamer 0.5 part, rheological agent 4 parts; Described number is number meter by weight, and the weight ratio of component A and B component is 4:1.
4. EPR deformation joint according to claim 3 repairs the construction method of water-stopping structure, it is characterized in that: described reactive diluent is butyl glycidyl ether, flexibilizer is polypropylene glycol diglycidyl ether, silane coupler is γ-glycidol ether propyl trimethoxy silicane, curing compound is N-aminoethyl piperazine, tough curing agent is polyetheramine, and rheological agent is aerosil.
5. EPR deformation joint according to claim 4 repairs the construction method of water-stopping structure, it is characterized in that: described epoxy resin is bisphenol E-type epoxy resin.
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| CN104830030B (en) * | 2015-02-05 | 2017-05-31 | 宁波高新区百茂高分子材料有限公司 | Epoxide resin material of sealing and preparation method thereof is repaired for concrete joint |
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