CN110158793B - Expansion joint structure - Google Patents
Expansion joint structure Download PDFInfo
- Publication number
- CN110158793B CN110158793B CN201910480577.XA CN201910480577A CN110158793B CN 110158793 B CN110158793 B CN 110158793B CN 201910480577 A CN201910480577 A CN 201910480577A CN 110158793 B CN110158793 B CN 110158793B
- Authority
- CN
- China
- Prior art keywords
- parts
- expansion joint
- elastic resin
- joint structure
- concrete base
- 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.)
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Links
- 239000011347 resin Substances 0.000 claims abstract description 25
- 229920005989 resin Polymers 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims description 9
- 239000011256 inorganic filler Substances 0.000 claims description 8
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000004925 Acrylic resin Substances 0.000 claims description 2
- 239000003999 initiator Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 description 6
- 238000002955 isolation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6801—Fillings therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Sealing Material Composition (AREA)
- Building Environments (AREA)
Abstract
The utility model discloses an expansion joint structure, which is applicable to concrete base surfaces, and comprises an expansion joint arranged between two concrete base surfaces, a groove arranged in the concrete base surfaces, and elastic resin filled in the groove, wherein the groove penetrates through one end of the expansion joint; the utility model provides an expansion joint structure which is not easy to crack and unshelling.
Description
Technical Field
The utility model relates to the technical field of buildings, in particular to an expansion joint structure.
Background
The expansion joint of a building, namely, an expansion joint, is a structural joint which is arranged along a proper position along the direction of a building or a construction joint of a structure in order to prevent a building member from generating cracks or damages due to climate temperature changes (thermal expansion and cold contraction). The expansion joint divides building components such as wall, floor, roof (except wood roof) above foundation into two independent parts, so that the building or structure can horizontally expand and contract along the length direction.
Chinese patent publication No. CN206706685U, a concrete waterway expansion joint structure, discloses a concrete waterway expansion joint structure, which is disposed on the side wall of the waterway and the waterway bottom plate at intervals; comprises a water channel plate, an expansion joint filling layer, an expansion joint sealing layer and an isolation layer; the water channel plates are positioned at two sides of the reserved notch of the expansion joint; the expansion joint filling layer is arranged in the expansion joint reserved notch and comprises a sealing strip, a filling strip and a rubber water stop belt; two sides of the rubber water stop belt extend into the water channel plate, wherein a U-shaped steel bar sleeve is arranged at the position in the water channel plate; the expansion joint sealing layer covers the expansion joint reserved notch at one side of the upstream surface, and two ends of the expansion joint sealing layer are respectively connected with the water channel plate surfaces at two sides of the expansion joint reserved notch in a lap joint manner; the isolation layer covers the expansion joint sealing layer, and the edge of the isolation layer exceeds the edge of the expansion joint sealing layer. The utility model solves the technical problems of poor impermeability and durability, complex construction and higher later maintenance cost of the traditional expansion joint structure.
However, the expansion joint structure in the prior art still has the problems of poor durability, frequent cracking, shelling and the like.
Disclosure of Invention
Aiming at the technical problems, the utility model provides an expansion joint structure which is not easy to crack and peel, and the expansion joint structure is suitable for a concrete base surface.
Preferably, the coronal surface of the groove is rectangular; further preferably, the ratio of the length of the rectangle to the width of the telescopic seam is 1:1-40:1; still more preferably, the ratio of the width of the rectangle to the width of the stretch slit is 1:1-10:1.
Preferably, the elastic resin comprises the following raw material components in parts by weight:
30-40 parts of epoxy resin
30-40 parts of polyurethane epoxy curing agent
30-40 parts of inorganic filler.
Further preferably, the elastic resin has an elongation at break of greater than 45%, a tensile break strength of greater than 8MPA, and a tear strength of greater than 15MPA.
Preferably, the elastic resin comprises the following raw material components in parts by weight:
30-40 parts of polyester ether resin
30-40 parts of NCO curing agent
30-40 parts of inorganic filler.
Further preferably, the elastic resin has an elongation at break of greater than 45%, a tensile break strength of greater than 12MPA, and a tear strength of greater than 20MPA.
Preferably, the elastic resin comprises the following raw material components in parts by weight:
further preferably, the elastic resin has an elongation at break of greater than 45%, a tensile break strength of greater than 6MPA, and a tear strength of greater than 25MPA.
Compared with the prior art, the technical scheme of the utility model has the following advantages: the expansion joint structure is not easy to crack and unshelling, and has good durability.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic view of an expansion joint structure according to an embodiment of the present utility model;
in the accompanying drawings: 1. 2 parts of concrete base surface, 2 parts of expansion joints, 3 parts of grooves.
Detailed Description
The conception, specific structure, and technical effects of the present utility model will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present utility model.
Referring to fig. 1, a structure diagram of an expansion joint structure is shown, wherein the expansion joint structure comprises a concrete base surface 1, expansion joints 2 and grooves 3, wherein the expansion joints 2 are arranged between the two concrete base surfaces 1, the grooves 3 are arranged in the concrete base surface 1, the grooves 3 penetrate through one ends of the expansion joints 2, elastic resin is filled in the grooves 3, the crown-shaped surfaces of the grooves 3 are rectangular, the ratio of the length of the rectangular to the width of the expansion joints 2 is 10:1, and the ratio of the width of the rectangular to the width of the expansion joints 2 is 5:1.
Example 1
In this embodiment, the elastic resin comprises the following raw materials by weight: 30g of epoxy resin, 30g of polyurethane epoxy curing agent and 40g of inorganic filler; the elastic resin has a breaking elongation of more than 45%, a tensile breaking strength of more than 8MPA and a tearing strength of more than 15MPA.
Example 2
In this embodiment, the elastic resin comprises the following raw materials by weight: 30g of polyester ether resin, 30g of NCO curing agent and 30g of inorganic filler; the elastic resin has a breaking elongation of more than 45%, a tensile breaking strength of more than 12MPA and a tearing strength of more than 20MPA.
Example 3
In this embodiment, the elastic resin comprises the following raw materials by weight: 80g of pre-polyacrylic resin, 2g of accelerator, 2g of initiator and 40g of inorganic filler; the elastic resin has a breaking elongation of more than 45%, a tensile breaking strength of more than 6MPA and a tearing strength of more than 25MPA.
The expansion joint structures prepared by the elastic resins in the embodiment 1, the embodiment 2 and the embodiment 3 are not easy to crack and peel, and have good durability.
The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (3)
1. An expansion joint structure suitable for concrete base surface is characterized by comprising an expansion joint arranged between two concrete base surfaces, a groove arranged in the concrete base surfaces, wherein the groove penetrates through one end of the expansion joint, elastic resin is filled in the groove,
the crown surface of the groove is rectangular,
the elastic resin comprises the following raw material components in parts by weight:
30-40 parts of epoxy resin
30-40 parts of polyurethane epoxy curing agent
30-40 parts of inorganic filler
The elastic resin has a breaking elongation of more than 45%, a tensile breaking strength of more than 8MPA and a tearing strength of more than 15MPA;
or:
the elastic resin comprises the following raw material components in parts by weight:
30-40 parts of polyester ether resin
30-40 parts of NCO curing agent
30-40 parts of inorganic filler
The elastic resin has a breaking elongation of more than 45%, a tensile breaking strength of more than 12MPA and a tearing strength of more than 20MPA;
or:
the elastic resin comprises the following raw material components in parts by weight:
70-80 parts of pre-polyacrylic resin
0-2 parts of promoter
Initiator 0-2 parts
30-40 parts of inorganic filler
The elastic resin has a breaking elongation of more than 45%, a tensile breaking strength of more than 6MPA and a tearing strength of more than 25MPA.
2. The expansion joint structure according to claim 1, wherein the ratio of the length of the rectangle to the width of the expansion joint is 1:1-40:1.
3. The expansion joint structure according to claim 2, wherein the ratio of the width of the rectangle to the width of the expansion joint is 1:1-10:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910480577.XA CN110158793B (en) | 2019-06-04 | 2019-06-04 | Expansion joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910480577.XA CN110158793B (en) | 2019-06-04 | 2019-06-04 | Expansion joint structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110158793A CN110158793A (en) | 2019-08-23 |
| CN110158793B true CN110158793B (en) | 2023-12-12 |
Family
ID=67627221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910480577.XA Active CN110158793B (en) | 2019-06-04 | 2019-06-04 | Expansion joint structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110158793B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110371568B (en) * | 2019-07-29 | 2021-02-02 | 中国电建集团中南勘测设计研究院有限公司 | Underground rock cavern gas storage structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0313604A (en) * | 1989-06-08 | 1991-01-22 | Toomen Constr Kk | Seamless expansion joint structure between bridge slabs |
| CN102942336A (en) * | 2012-11-10 | 2013-02-27 | 广东易山重工股份有限公司 | Elastic-plastic body material for filling bridge gaps |
| CN103966941A (en) * | 2014-04-10 | 2014-08-06 | 广东省建筑科学研究院 | Construction method for rapidly repairing expansion joint heightening leveling layer |
| CN103992633A (en) * | 2014-05-08 | 2014-08-20 | 中国铁道科学研究院铁道建筑研究所 | Polyurethane caulking material for expansion joints of ballastless track of high speed railway |
| CN105926433A (en) * | 2016-05-06 | 2016-09-07 | 湖北永益金属地板有限公司 | Method capable of solving problems existing in expansion joint structure |
| CN205576732U (en) * | 2016-04-28 | 2016-09-14 | 驻马店市宇畅路桥养护工程有限公司 | Expansion joint for roads and bridges |
| CN108192548A (en) * | 2017-12-29 | 2018-06-22 | 广东铁科灌浆科技有限公司 | Permanent seal cooling epoxy resin caulking material and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7836652B2 (en) * | 2008-09-22 | 2010-11-23 | Sanford Lloyd Futterman | System and method for sealing joints between exterior wall panels |
-
2019
- 2019-06-04 CN CN201910480577.XA patent/CN110158793B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0313604A (en) * | 1989-06-08 | 1991-01-22 | Toomen Constr Kk | Seamless expansion joint structure between bridge slabs |
| CN102942336A (en) * | 2012-11-10 | 2013-02-27 | 广东易山重工股份有限公司 | Elastic-plastic body material for filling bridge gaps |
| CN103966941A (en) * | 2014-04-10 | 2014-08-06 | 广东省建筑科学研究院 | Construction method for rapidly repairing expansion joint heightening leveling layer |
| CN103992633A (en) * | 2014-05-08 | 2014-08-20 | 中国铁道科学研究院铁道建筑研究所 | Polyurethane caulking material for expansion joints of ballastless track of high speed railway |
| CN205576732U (en) * | 2016-04-28 | 2016-09-14 | 驻马店市宇畅路桥养护工程有限公司 | Expansion joint for roads and bridges |
| CN105926433A (en) * | 2016-05-06 | 2016-09-07 | 湖北永益金属地板有限公司 | Method capable of solving problems existing in expansion joint structure |
| CN108192548A (en) * | 2017-12-29 | 2018-06-22 | 广东铁科灌浆科技有限公司 | Permanent seal cooling epoxy resin caulking material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110158793A (en) | 2019-08-23 |
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| GR01 | Patent grant |