CN109265039A - A kind of pregrouting micro plastic pipe for mending concrete structural cracks - Google Patents
A kind of pregrouting micro plastic pipe for mending concrete structural cracks Download PDFInfo
- Publication number
- CN109265039A CN109265039A CN201811235257.XA CN201811235257A CN109265039A CN 109265039 A CN109265039 A CN 109265039A CN 201811235257 A CN201811235257 A CN 201811235257A CN 109265039 A CN109265039 A CN 109265039A
- Authority
- CN
- China
- Prior art keywords
- plastic pipe
- micro plastic
- concrete
- pregrouting
- structural cracks
- 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.)
- Granted
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 50
- 229920000426 Microplastic Polymers 0.000 title claims abstract description 34
- 239000002002 slurry Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000005266 casting Methods 0.000 claims abstract description 5
- 230000010412 perfusion Effects 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000005336 cracking Methods 0.000 abstract description 7
- 238000003756 stirring Methods 0.000 abstract description 3
- 230000009429 distress Effects 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000011210 fiber-reinforced concrete Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1029—Macromolecular compounds
-
- 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
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
A kind of pregrouting micro plastic pipe for mending concrete structural cracks improves the cracking resistance of concrete structure to realize the voluntarily repairing of distress in concrete.Including mixing and stirring the micro plastic pipe in concrete when casting concrete structure, the tensile strength of micro plastic tube material is lower than concrete tensile strength, and micro plastic pipe middle section is hollow and thin-walled structure, the internal filling crack repairing slurries of perfusion in advance；Longitudinal both ends of the micro plastic pipe are heat seal section.
Description
Technical field
The present invention relates to civil engineering, in particular to a kind of pregrouting micro plastic for mending concrete structural cracks
Pipe.
Background technique
Concrete is the construction material that current usage amount is maximum, boundary of works area is most wide, and raw material is easy to get, intensity is higher, can
Plasticity is good, its main feature is that compression strength is high, tensile strength is low, tensile strength generally only has the 10% of its compression strength, and tough
Property it is poor, can temperature stress caused by the heat of hydration during contraction distortion, especially casting of concrete in mass when hardening process
It can make concrete cracking.
In order to solve the shortcomings of concrete, engineer tries that fibrous material is added when concrete mixes and stirs, and utilizes fibre
The advantages that high intensity of dimension, high tenacity, the performances such as toughness, cracking resistance, the shock resistance of concrete are improved, it is mixed to thus form fiber
Solidifying soil.The more fiber concrete of domestic application is based on steel fiber reinforced concrete at present, part mix carbon fiber, glass fibre,
The high molecular materials such as polypropylene fibre.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of pregrouting for mending concrete structural cracks is miniature
Plastic tube improves the cracking resistance of concrete structure to realize the voluntarily repairing of distress in concrete.
The technical solution adopted by the present invention to solve the technical problems is as follows:
A kind of pregrouting micro plastic pipe for mending concrete structural cracks of the invention, it is characterized in that: including pouring
The micro plastic pipe in concrete is mixed and stirred when building concrete structure, the tensile strength of micro plastic tube material is lower than agent on crack resistance of concrete
Tensile strength, micro plastic pipe middle section are hollow and thin-walled structure, the internal filling crack repairing slurries of perfusion in advance；The micro plastic
Longitudinal both ends of pipe are heat seal section.
Longitudinally spaced setting holding force tenon in the heat seal section.
The invention has the advantages that micro plastic pipe is mixed and stirred in casting concrete structure in wherein, in concrete knot
In structure maintenance, manufacture and service process, once the tensile stress of concrete structure reaches the tensile strength of micro plastic pipe, then and it is hollow
Thin-wall construction is pulled off, and the crack repairing slurries inside sealed up for safekeeping fill outflow to surrounding concrete crack, realizes coagulation
The voluntarily repairing of soil cracking seam, greatly improves the cracking resistance of concrete structure.
Detailed description of the invention
This specification includes following six width attached drawing:
Fig. 1 is a kind of pregrouting micro plastic pipe for mending concrete structural cracks of the present invention in concrete structure
Distribution schematic diagram；
Fig. 2 is a kind of pregrouting micro plastic tubing patch concrete structure for mending concrete structural cracks of the present invention
The schematic diagram of internal fissure；
Fig. 3 is a kind of skiagraph of the pregrouting micro plastic pipe for mending concrete structural cracks of the present invention；
Fig. 4 is a kind of top view of the pregrouting micro plastic pipe for mending concrete structural cracks of the present invention；
Fig. 5 is the cross-sectional view of the line A-A along Fig. 4；
Fig. 6 is the cross-sectional view of the line B-B along Fig. 4.
Component and corresponding label be shown in figure: concrete structure 10, crack 11, micro plastic pipe 20, holding force tenon 21,
Crack repairing slurries 30.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Referring to FIG. 1, FIG. 2 and FIG. 3, a kind of pregrouting micro plastic for mending concrete structural cracks of the invention
Pipe, including mixing and stirring the micro plastic pipe 20 in concrete, the tension of the material of micro plastic pipe 20 when casting concrete structure
Intensity is lower than concrete tensile strength, and micro plastic pipe middle section is hollow and thin-walled structure, the internal filling crack repairing of perfusion in advance
Slurries 30.Longitudinal both ends of the micro plastic pipe 20 are heat seal section.In the maintenance of concrete structure 10, forms and used
Cheng Zhong, once the tensile stress of concrete structure 10 reaches its tensile strength of 20 hollow and thin-walled structure of micro plastic pipe, then and it is hollow
Thin-wall construction is pulled off, and the crack repairing slurries 30 inside sealed up for safekeeping fill outflow to crack 11 around, realizes concrete
The voluntarily repairing in crack 11, greatly improves the cracking resistance of concrete structure.
Referring to Fig. 4, Fig. 5 and Fig. 6, micro plastic pipe 20 is lower than the macromolecule material of concrete tensile strength using tensile strength
Material production.One end elder generation heat seal of micro plastic pipe 20 is closed, the perfusion filling crack repairing slurry into the hollow and thin-walled structure in middle section
Reheating closes the closing other end after liquid 30.It is longitudinally spaced in the heat seal section to break hollow and thin-walled structure in time
Holding force tenon 21 is set.
The above is the miniature modeling of a kind of pregrouting for mending concrete structural cracks of the invention that explains through diagrams
Some principles of expects pipe are not intended to for the present invention being confined in shown and described specific structure and the scope of application, therefore all
All corresponding modifications that may be utilized and equivalent, belong to the applied the scope of the patents of the present invention.
Claims (2)
1. a kind of pregrouting micro plastic pipe for mending concrete structural cracks, it is characterized in that: including casting concrete knot
The micro plastic pipe (20) in concrete is mixed and stirred when structure, the tensile strength of the material of micro plastic pipe (20) is lower than agent on crack resistance of concrete
Tensile strength, micro plastic pipe middle section are hollow and thin-walled structure, the crack repairing slurries of perfusion filling in advance in hollow and thin-walled structure
(30)；Longitudinal both ends of the micro plastic pipe (20) are heat seal section.
2. a kind of pregrouting micro plastic pipe for mending concrete structural cracks as described in claim 1, it is characterized in that:
Longitudinally spaced setting holding force tenon (21) in the heat seal section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811235257.XA CN109265039B (en) | 2018-10-23 | 2018-10-23 | Pre-grouting miniature plastic pipe for repairing cracks of concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811235257.XA CN109265039B (en) | 2018-10-23 | 2018-10-23 | Pre-grouting miniature plastic pipe for repairing cracks of concrete structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109265039A true CN109265039A (en) | 2019-01-25 |
| CN109265039B CN109265039B (en) | 2024-01-19 |
Family
ID=65194774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811235257.XA Active CN109265039B (en) | 2018-10-23 | 2018-10-23 | Pre-grouting miniature plastic pipe for repairing cracks of concrete structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109265039B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656734A (en) * | 2019-10-09 | 2020-01-07 | 上海建工二建集团有限公司 | Pre-grouting type semi-grouting sleeve structure and construction method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193770A (en) * | 2017-12-29 | 2018-06-22 | 华南理工大学 | A kind of concrete structure of selfreparing |
| CN207829151U (en) * | 2017-12-29 | 2018-09-07 | 华南理工大学 | It is a kind of can in compared with dry environment selfreparing concrete structure |
| CN209259948U (en) * | 2018-10-23 | 2019-08-16 | 中铁二院工程集团有限责任公司 | A kind of pregrouting micro plastic pipe for mending concrete structural cracks |
-
2018
- 2018-10-23 CN CN201811235257.XA patent/CN109265039B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193770A (en) * | 2017-12-29 | 2018-06-22 | 华南理工大学 | A kind of concrete structure of selfreparing |
| CN207829151U (en) * | 2017-12-29 | 2018-09-07 | 华南理工大学 | It is a kind of can in compared with dry environment selfreparing concrete structure |
| CN209259948U (en) * | 2018-10-23 | 2019-08-16 | 中铁二院工程集团有限责任公司 | A kind of pregrouting micro plastic pipe for mending concrete structural cracks |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656734A (en) * | 2019-10-09 | 2020-01-07 | 上海建工二建集团有限公司 | Pre-grouting type semi-grouting sleeve structure and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109265039B (en) | 2024-01-19 |
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