CN107151116B - A kind of composition epoxy resin and its preparation method and application - Google Patents
A kind of composition epoxy resin and its preparation method and application Download PDFInfo
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- CN107151116B CN107151116B CN201710316576.2A CN201710316576A CN107151116B CN 107151116 B CN107151116 B CN 107151116B CN 201710316576 A CN201710316576 A CN 201710316576A CN 107151116 B CN107151116 B CN 107151116B
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- epoxy resin
- composition epoxy
- epoxide
- resin glue
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Classifications
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
- C04B14/068—Specific natural sands, e.g. sea -, beach -, dune - or desert sand
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D37/00—Repair of damaged foundations or foundation structures
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Epoxy Resins (AREA)
Abstract
The invention discloses a kind of composition epoxy resins and its preparation method and application, including following component: 80 parts -150 parts of epoxide-resin glue；120 parts -250 parts of cement；40 parts -80 parts of yellow ground.The present invention is on the basis of existing epoxide-resin glue, the cement and yellow ground of special ratios is added, the composition epoxy resin being prepared reaches as high as C80 in 4 hours cured strengths, it is significantly improved compared with epoxide-resin glue, its intensity is suitable with the intensity of stake position itself, while having certain toughness again, can ensure that pile crown again strike-on when can bear hammer force, stake position total bearing capacity is unaffected, repairs particularly suitable for crack in pile crown；Preparation process is simple, and product curing time is short, at low cost.
Description
Technical field
The present invention relates to concrete tubular pile repairing technique fields, and in particular to a kind of composition epoxy resin and its preparation side
Method and application.
Background technique
Existing prefabricated tubular pile is in building-site work progress, because of ground cytoplasmic mutation, the reasons such as lack of standardization of constructing, downward
During pile sinking, often generates crack in pile crown or pile crown is damaged, cause that pile sinking can not be continued, entire stake position is caused to be scrapped,
It needs the suitable position beside this position to reset stake position, repeats injection, the tubular pole that former stake position has been squeezed into wastes completely
It abandons, this not only influences construction speed and period, also will increase a large amount of cost.
To guarantee construction speed and avoiding unnecessary economic loss, using continuing pile sinking after pile crown reinforcing and repairing.At present
Repair material used in stake substantially there are two types of: first is that sulphur glue, second is that epoxide-resin glue.Using sulphur glue, after the repair has been completed,
Need to solidify 12 hours or so could pile sinking, although lower in terms of cost, 2 times longer than epoxide-resin glue of time with
On, it is more difficult to secondary pile sinking to delay the time.Using epoxide-resin glue, although curing time is short compared with sulphur glue, it is strong
Spend lower, quality is difficult to ensure, and its higher cost.
Summary of the invention
In order to overcome the drawbacks of the prior art or insufficient, it is high, at low cost that the purpose of the present invention is to provide a kind of intensity
Composition epoxy resin.
A further object of the present invention is to provide the preparation methods of above-mentioned composition epoxy resin.
The present invention is achieved the object of the present invention using following technical scheme:
A kind of composition epoxy resin, according to parts by weight, including following component:
80 parts -150 parts of epoxide-resin glue；
120 parts -250 parts of cement；
40 parts -80 parts of yellow ground；
Wherein, the epoxide-resin glue, according to parts by weight, including following component:
100 parts of epoxy resin；
0.5-2 parts of promotor；
0.5-2 parts of curing agent.
It is further preferred that the composition epoxy resin, according to parts by weight, including following component:
100 parts -120 parts of epoxide-resin glue；
150 parts -180 parts of cement；
50 parts -60 parts of yellow ground.
The cement and yellow ground of special ratios is added in the present invention in epoxide-resin glue, can significantly improve the strong of epoxide-resin glue
Degree provides that the composition epoxy resin being prepared is solid at 4 hours according to GB50010-2010 " Code for design of concrete structures "
Intensity after change reaches as high as C80.If cement and yellow ground are added excessively, the intensity of composition is poor, if cement and yellow ground
It is added very few, the intensity of one side composition is inadequate, and another aspect epoxy resin content is high, and cost is higher.
It is further preferred that the epoxide-resin glue: cement: the weight ratio of yellow ground is 1:1.5:0.5.
Wherein, the promotor is 2-methylimidazole, 2- ethyl imidazol(e) -4-methylimidazole, 2- phenylimidazole, 2- methyl -
4- phenylimidazole or 2, the mixing of one or more of 4- methylimidazole.The present invention uses imidazoles promotor, can reduce
The solidification temperature of epoxy resin promotes curing rate, to reduce curing time.
Wherein, the curing agent be 4,4 '-diaminodiphenyl-methanes, m-phenylene diamine (MPD), 4,4 '-diamino diphenyl sulfones,
The mixture of one or more of 3,3 '-diamino diphenyl sulfones.
The present invention also provides the preparation methods of above-mentioned composition epoxy resin, comprising the following steps:
A, under constant stirring, curing agent is added in epoxy resin, is completely dissolved to curing agent within stirring 20-40 minutes,
It adds promotor to be stirred 5-15 minutes, obtains epoxide-resin glue；
B, epoxide-resin glue, cement, yellow ground are mixed by weight ratio, is sufficiently stirred to get composition epoxy resin.
The above-mentioned composition epoxy resin of the present invention is particularly suitable for applications in crack in pile crown repairing, specific application side
Method includes the following steps:
(1) damaged pile crown is sawed to flat, exposing 3~4cm of main reinforcement；
(2) a jacketed prefabricated pile cover on pile crown, and exposed main reinforcement is welded one by one on the screw hole of pile cover end plate；
(3) pallet matched with pile cover is placed in tubular pole inner cavity, and pallet and pile cover is connected；
(4) the intracavitary injection ring epoxy resin composition in tubular pole, composition epoxy resin is after 4 hours are fully cured, i.e.,
It can continue pile sinking of plugging into.
Compared with prior art, the present invention having the following beneficial effects:
1, the present invention is added the cement and yellow ground of special ratios, is prepared on the basis of existing epoxide-resin glue
Composition epoxy resin reaches as high as C80 in 4 hours cured strengths, is significantly improved compared with epoxide-resin glue, intensity and stake
The intensity of position itself is suitable, while having certain toughness again, can ensure that pile crown again strike-on when can bear hammer force, stake position is whole
Bearing capacity is unaffected, repairs particularly suitable for crack in pile crown；
2, preparation process of the present invention is simple, and product curing time is short, at low cost.
Specific embodiment
Further illustrate that the present invention, following embodiment are the preferable embodiment party of the present invention below by specific embodiment
Formula, but embodiments of the present invention are not limited by following embodiments.
The embodiment of the present invention is raw materials used derive from it is commercially available.
Embodiment 1:
A kind of composition epoxy resin, according to parts by weight, including component: 100 parts of epoxide-resin glue；150 parts of cement；It is yellow
50 parts of sand；Wherein, epoxide-resin glue, according to parts by weight, including component: 100 parts of epoxy resin；1 part of 2-methylimidazole；4,
4 ' -1 part of diaminodiphenyl-methanes.
Preparation method includes the following steps:
A, under constant stirring, 4,4 '-diaminodiphenyl-methanes are added in epoxy resin, are stirred 30 minutes to 4,
4 '-diaminodiphenyl-methanes are completely dissolved, and are added 2-methylimidazole and are stirred 10 minutes, obtain epoxide-resin glue；
B, epoxide-resin glue, cement, yellow ground are mixed by weight ratio, is sufficiently stirred to get composition epoxy resin.
Provide that the composition epoxy resin being prepared is 4 according to GB50010-2010 " Code for design of concrete structures "
Hour solidify after intensity be C80.
Embodiment 2:
A kind of composition epoxy resin, according to parts by weight, including component: 120 parts of epoxide-resin glue；150 parts of cement；It is yellow
60 parts of sand；Wherein, epoxide-resin glue, according to parts by weight, including component: 100 parts of epoxy resin；2- ethyl imidazol(e) -4- methyl
1.5 parts of imidazoles；4,4 ' -1.5 parts of diaminodiphenyl-methanes.
Preparation method includes the following steps:
A, under constant stirring, 4,4 '-diaminodiphenyl-methanes are added in epoxy resin, are stirred 35 minutes to 4,
4 '-diaminodiphenyl-methanes are completely dissolved, and are added 2- ethyl imidazol(e) -4-methylimidazole and are stirred 15 minutes, obtain ring
Oxygen resin glue；
B, epoxide-resin glue, cement, yellow ground are mixed by weight ratio, is sufficiently stirred to get composition epoxy resin.
Provide that the composition epoxy resin being prepared is 4 according to GB50010-2010 " Code for design of concrete structures "
Hour solidify after intensity be C75.
Embodiment 3:
A kind of composition epoxy resin, according to parts by weight, including component: 150 parts of epoxide-resin glue；120 parts of cement；It is yellow
40 parts of sand；Wherein, epoxide-resin glue, according to parts by weight, including component: 100 parts of epoxy resin；2,4- 1 part of methylimidazoles；
4,4 ' -1 part of diaminodiphenyl-methanes.
Preparation method includes the following steps:
A, under constant stirring, 4,4 '-diaminodiphenyl-methanes are added in epoxy resin, are stirred 20 minutes to 4,
4 '-diaminodiphenyl-methanes are completely dissolved, and are added 2,4- methylimidazole and are stirred 8 minutes, obtain epoxide-resin glue；
B, epoxide-resin glue, cement, yellow ground are mixed by weight ratio, is sufficiently stirred to get composition epoxy resin.
Provide that the composition epoxy resin being prepared is 4 according to GB50010-2010 " Code for design of concrete structures "
Hour solidify after intensity be C75.
Comparative example 1:
A kind of epoxide-resin glue, according to parts by weight, including component: 100 parts of epoxy resin；1 part of 2-methylimidazole；4,
4 ' -1 part of diaminodiphenyl-methanes.
Preparation method are as follows: under constant stirring, 4,4 '-diaminodiphenyl-methanes are added in epoxy resin, stirring
It is completely dissolved to 4,4 '-diaminodiphenyl-methanes within 30 minutes, adds 2-methylimidazole and be stirred 10 minutes, obtain epoxy
Resin glue；
Provide that the epoxide-resin glue being prepared was at 4 hours according to GB50010-2010 " Code for design of concrete structures "
Intensity after solidification is C50.
Comparative example 2:
A kind of composition epoxy resin, according to parts by weight, including component: 100 parts of epoxide-resin glue；100 parts of cement；It is yellow
20 parts of sand；Wherein, epoxide-resin glue, according to parts by weight, including component: 100 parts of epoxy resin；1 part of 2-methylimidazole；4,
4 ' -1 part of diaminodiphenyl-methanes.
Preparation method includes the following steps:
A, under constant stirring, 4,4 '-diaminodiphenyl-methanes are added in epoxy resin, are stirred 30 minutes to 4,
4 '-diaminodiphenyl-methanes are completely dissolved, and are added 2-methylimidazole and are stirred 10 minutes, obtain epoxide-resin glue；
B, epoxide-resin glue, cement, yellow ground are mixed by weight ratio, is sufficiently stirred to get composition epoxy resin.
Provide that the composition epoxy resin being prepared is 4 according to GB50010-2010 " Code for design of concrete structures "
Hour solidify after intensity be C65.
Comparative example 3:
A kind of composition epoxy resin, according to parts by weight, including component: 100 parts of epoxide-resin glue；300 parts of cement；It is yellow
100 parts of sand；Wherein, epoxide-resin glue, according to parts by weight, including component: 100 parts of epoxy resin；1 part of 2-methylimidazole；4,
4 ' -1 part of diaminodiphenyl-methanes.
Preparation method includes the following steps:
A, under constant stirring, 4,4 '-diaminodiphenyl-methanes are added in epoxy resin, are stirred 30 minutes to 4,
4 '-diaminodiphenyl-methanes are completely dissolved, and are added 2-methylimidazole and are stirred 10 minutes, obtain epoxide-resin glue；
B, epoxide-resin glue, cement, yellow ground are mixed by weight ratio, is sufficiently stirred to get composition epoxy resin.
Provide that the composition epoxy resin being prepared is 4 according to GB50010-2010 " Code for design of concrete structures "
Hour solidify after intensity be C60.
Embodiment 4: application examples
Application of the composition epoxy resin of embodiment 1 in crack in pile crown repairing, specific application method, including it is as follows
Step:
(1) damaged pile crown is sawed to flat, exposing 3~4cm of main reinforcement；
(2) a jacketed prefabricated pile cover on pile crown, and exposed main reinforcement is welded one by one on the screw hole of pile cover end plate；
(3) pallet matched with pile cover is placed in tubular pole inner cavity, and pallet and pile cover is connected；
(4) the intracavitary injection ring epoxy resin composition in tubular pole, composition epoxy resin is after 4 hours are fully cured, i.e.,
It can continue pile sinking of plugging into.
Rapid-Repair pile crown is able to achieve using the above method, composition epoxy resin and pile body form an entirety, and 4 hours
Intensity reaches as high as C80 afterwards.After completing repairing construction speed can be had substantially no effect on rapid construction.Composition epoxy resin energy
The intensity reached is suitable with the intensity of stake position itself, while having certain toughness again, can ensure that pile crown again strike-on when can bear
Hammer force, stake position total bearing capacity are unaffected.Tubular pole dosage has been saved, together without scrapping in stake position after being repaired using the method
When can guarantee quality and construction speed.In the case where geology or construction reason generate rotten stake, it can be significantly reduced tubular pole dosage,
With splendid economic benefit, the building-site that is highly advantageous to controls time cost.
Claims (8)
1. a kind of composition epoxy resin, which is characterized in that according to parts by weight, including following component:
80 parts -150 parts of epoxide-resin glue；
120 parts -250 parts of cement；
40 parts -80 parts of yellow ground；
Wherein, the epoxide-resin glue, according to parts by weight, including following component:
100 parts of epoxy resin；
0.5-2 parts of promotor；
0.5-2 parts of curing agent,
The epoxide-resin glue: cement: the weight ratio of yellow ground is 1:1.5:0.5.
2. composition epoxy resin according to claim 1, which is characterized in that according to parts by weight, including following component:
100 parts -120 parts of epoxide-resin glue；
150 parts -180 parts of cement；
50 parts -60 parts of yellow ground.
3. -2 described in any item composition epoxy resins according to claim 1, which is characterized in that the promotor is 2- methyl
Imidazoles, 2- ethyl imidazol(e) -4-methylimidazole, 2- phenylimidazole, 2- methyl 4-phenyl imidazoles or 2, one in 4- methylimidazole
Kind or several mixing.
4. -2 described in any item composition epoxy resins according to claim 1, which is characterized in that the curing agent is 4,4 ' -
Diaminodiphenyl-methane, m-phenylene diamine (MPD), 4,4 '-diamino diphenyl sulfones, 3, one of 3 '-diamino diphenyl sulfones or several
The mixture of kind.
5. -2 described in any item composition epoxy resins according to claim 1, which is characterized in that according to GB50010-2010
" Code for design of concrete structures " regulation, the intensity after the composition epoxy resin solidified at 4 hours are up to C80.
6. the preparation method of composition epoxy resin according to claim 1-5, which is characterized in that including following
Step:
A, under constant stirring, curing agent is added in epoxy resin, is completely dissolved to curing agent within stirring 20-40 minutes, then plus
Enter promotor to be stirred 5-15 minutes, obtains epoxide-resin glue；
B, epoxide-resin glue, cement, yellow ground are mixed by weight ratio, is sufficiently stirred to get composition epoxy resin.
7. application of the composition epoxy resin according to claim 1-5 in crack in pile crown repairing.
8. application of the composition epoxy resin according to claim 7 in crack in pile crown repairing, which is characterized in that specific
Application method, include the following steps:
(1) damaged pile crown is sawed to flat, exposing 3~4cm of main reinforcement；
(2) a jacketed prefabricated pile cover on pile crown, and exposed main reinforcement is welded one by one on the screw hole of pile cover end plate；
(3) pallet matched with pile cover is placed in tubular pole inner cavity, and pallet and pile cover is connected；
(4) the intracavitary injection ring epoxy resin composition in tubular pole, composition epoxy resin is after 4 hours are fully cured, Ji Keji
Pile sinking is refuted in continued access.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710316576.2A CN107151116B (en) | 2017-05-08 | 2017-05-08 | A kind of composition epoxy resin and its preparation method and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710316576.2A CN107151116B (en) | 2017-05-08 | 2017-05-08 | A kind of composition epoxy resin and its preparation method and application |
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| CN107151116A CN107151116A (en) | 2017-09-12 |
| CN107151116B true CN107151116B (en) | 2019-09-17 |
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| EP3768647A4 (en) * | 2018-03-21 | 2021-11-10 | Sika Technology Ag | Epoxy resin composition for underwater grouting |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748759A (en) * | 2009-12-16 | 2010-06-23 | 江苏建华管桩有限公司 | Method for strengthening and repairing tubular pile head |
| CN102898075A (en) * | 2012-08-29 | 2013-01-30 | 江苏博特新材料有限公司 | High-strength fast-curing epoxy resin grouting material and preparation method thereof |
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2017
- 2017-05-08 CN CN201710316576.2A patent/CN107151116B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748759A (en) * | 2009-12-16 | 2010-06-23 | 江苏建华管桩有限公司 | Method for strengthening and repairing tubular pile head |
| CN102898075A (en) * | 2012-08-29 | 2013-01-30 | 江苏博特新材料有限公司 | High-strength fast-curing epoxy resin grouting material and preparation method thereof |
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