CN104072021A - Concrete adhesive composition and preparation method thereof - Google Patents
Concrete adhesive composition and preparation method thereof Download PDFInfo
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- CN104072021A CN104072021A CN201410351007.8A CN201410351007A CN104072021A CN 104072021 A CN104072021 A CN 104072021A CN 201410351007 A CN201410351007 A CN 201410351007A CN 104072021 A CN104072021 A CN 104072021A
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- epoxy resin
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- 239000000203 mixture Substances 0.000 title claims abstract description 69
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 16
- 239000000853 adhesive Substances 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title abstract description 6
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 claims abstract description 58
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000003822 epoxy resin Substances 0.000 claims abstract description 36
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 36
- 239000011280 coal tar Substances 0.000 claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 26
- 239000011230 binding agent Substances 0.000 claims description 25
- 229920006122 polyamide resin Polymers 0.000 claims description 15
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical group NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims 3
- 239000004568 cement Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 239000007767 bonding agent Substances 0.000 description 2
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910015900 BF3 Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a concrete adhesive composition and a preparation method thereof. The concrete adhesive composition comprises epoxy resin, coal tar, acetone, furfural and a curing agent; relative to 100 parts of the epoxy resin by weight, the parts of the coal tar, the acetone, the furfural and the curing agent by weight are respectively 5 to 35, 1 to 15, 1 to 30 and 1 to 30. According to the concrete adhesive composition provided by the invention, as materials such as coal tar, furfural and curing agent are added into the epoxy resin, the problem that the adhesive property of the concrete adhesive is reduced, which is caused by the fact that the whole concrete adhesive is dry due to the dry of the cement over time after the cement is added into the adhesive, can be solved, and the phenomenon that the concrete falls dregs can be avoided; meanwhile, when new concrete and old concrete are bonded, the adhesive property cannot be reduced which is caused by too dry adhesive, so that infirm bonding can be prevented.
Description
Technical Field
The invention relates to the field of concrete processing, in particular to a concrete binder composition and a preparation method of a concrete binder.
Background
The concrete is used very extensively in daily building engineering, every building can all use the concrete, but in the concrete use, must guarantee the degree of adhesion of concrete, if the degree of adhesion is low excessively, can cause the concrete loose phenomenon to appear in the use, and then lead to the concrete to fall the ash, fall the emergence of sediment phenomenon, cause huge harm for the building, and the building is in daily use, because of receiving the influence of environment such as wind-blown solarization for a long time, can make the concrete on outer wall surface be corroded and drop, thereby need repair, in the repair process, need guarantee to get up new concrete and old good bonding of concrete. However, in the prior art, cement is often used as a main raw material for a general concrete binder, and in the actual use process, the binding effect is often reduced due to the drying of the cement, so that the concrete is easy to fall off.
Therefore, the present invention provides a concrete binder having good adhesion and easy to produce, which is a problem to be solved.
Disclosure of Invention
Aiming at the prior art, the invention aims to overcome the problem of poor bonding effect of the concrete bonding agent in the prior art and provide the concrete bonding agent which has good bonding degree and is convenient to produce.
In order to achieve the above object, the present invention provides a concrete binder composition, wherein the concrete binder composition comprises an epoxy resin, coal tar, acetone, furfural, and a curing agent; relative to 100 parts by weight of the epoxy resin, 5-35 parts by weight of the coal tar, 1-15 parts by weight of the acetone, 1-30 parts by weight of the furfural and 1-30 parts by weight of the curing agent are used.
The invention also provides a preparation method of the concrete binder, wherein the method comprises the following steps:
(1) mixing epoxy resin and coal tar to obtain a mixture A1;
(2) mixing acetone, furfural and a curing agent to obtain a mixture A2;
(3) mixing mixture A1 and mixture A2; wherein,
relative to 100 parts by weight of the epoxy resin, the coal tar is 5-35 parts by weight, the acetone is 1-15 parts by weight, the furfural is 1-30 parts by weight, and the curing agent is 1-30 parts by weight.
According to the invention, materials such as coal tar, furfural and curing agent are added into epoxy resin, so that the phenomena that the whole concrete binder is dried and the binding power of the concrete binder is reduced after the cement is dried along with time due to the addition of the cement are avoided, the concrete slag is prevented from falling off and the like, and meanwhile, when new concrete and old concrete are bound, the binding power is not reduced due to over-drying of the binder, so that the binding is not firm.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The invention provides a concrete binder composition, wherein the concrete binder composition comprises epoxy resin, coal tar, acetone, furfural and a curing agent; relative to 100 parts by weight of the epoxy resin, 5-35 parts by weight of the coal tar, 1-15 parts by weight of the acetone, 1-30 parts by weight of the furfural and 1-30 parts by weight of the curing agent are used.
According to the invention, materials such as coal tar, furfural and curing agent are added into epoxy resin, so that the phenomena that the whole concrete binder is dried and the binding power of the concrete binder is reduced after the cement is dried along with time due to the addition of the cement are avoided, the concrete slag is prevented from falling off and the like, and meanwhile, when new concrete and old concrete are bound, the binding power is not reduced due to over-drying of the binder, so that the binding is not firm.
In order to achieve better binding performance, in a preferred embodiment of the present invention, the coal tar is 10 to 20 parts by weight, the acetone is 2 to 8 parts by weight, the furfural is 5 to 15 parts by weight, and the curing agent is 5 to 15 parts by weight, relative to 100 parts by weight of the epoxy resin.
In order to achieve better bonding performance and avoid the reduction of bonding performance due to a single resin, in a more preferred embodiment of the present invention, the concrete binder composition may further include a polyamide resin; the polyamide resin is 10 to 30 parts by weight with respect to 100 parts by weight of the epoxy resin.
The curing agent may be of the type conventionally used in the art, and may be, for example, an organic acid, a modified fatty amine, and boron trifluoride and a complex thereof, and in the present invention, in order to allow the epoxy resin to form a better network structure, in a preferred embodiment of the present invention, the curing agent may be diethylenetriamine.
The invention also provides a preparation method of the concrete binder, wherein the method comprises the following steps:
(1) mixing epoxy resin and coal tar to obtain a mixture A1;
(2) mixing acetone, furfural and a curing agent to obtain a mixture A2;
(3) mixing mixture A1 and mixture A2; wherein,
relative to 100 parts by weight of the epoxy resin, the coal tar is 5-35 parts by weight, the acetone is 1-15 parts by weight, the furfural is 1-30 parts by weight, and the curing agent is 1-30 parts by weight.
In order to obtain better bonding effect, in a preferred embodiment of the invention, the coal tar is used in an amount of 10 to 20 parts by weight, the acetone is used in an amount of 2 to 8 parts by weight, the furfural is used in an amount of 5 to 15 parts by weight, and the curing agent is used in an amount of 5 to 15 parts by weight, relative to 100 parts by weight of the epoxy resin.
The resin may be a single epoxy resin, but in order to avoid the decrease in adhesive properties caused by the use of a single resin, in a more preferred embodiment of the present invention, step (2) is followed by the step of adding a polyamide resin to the mixture a2 for mixing; the polyamide resin is used in an amount of 10 to 30 parts by weight with respect to 100 parts by weight of the epoxy resin.
The curing agent is as described above.
The present invention will be described in detail below by way of examples.
In the following examples, the epoxy resin is 6101 epoxy resin produced by shanghai resin factory, the polyamide resin is polyamide resin produced by zhejiang yellow rock resin chemical limited, the diethylenetriamine is diethylenetriamine produced by bennanlacki chemical limited, and the coal tar, acetone and furfural are conventional commercial products.
Example 1
Mixing 100g of epoxy resin and 15g of coal tar to obtain a mixture A1; mixing 5g of acetone, 10g of furfural and 10g of diethylenetriamine to obtain a mixture A2; 20g of polyamide resin was added to the mixture A2 and mixed to give a mixture A3; mixture a1 and mixture A3 were mixed to give M1.
Example 2
Mixing 100g of epoxy resin and 10g of coal tar to obtain a mixture B1; mixing 2g of acetone, 5g of furfural and 5g of diethylenetriamine to obtain a mixture B2; 10g of polyamide resin was added to the mixture B2 and mixed to give a mixture B3; mixture B1 and mixture B3 were mixed to give M2.
Example 3
Mixing 100g of epoxy resin and 20g of coal tar to obtain a mixture C1; mixing 8g of acetone, 15g of furfural and 15g of diethylenetriamine to obtain a mixture C2; adding 30g of polyamide resin into the mixture C2 for mixing to obtain a mixture C3; mixture C1 and mixture C3 were mixed to give M3.
Example 4
Mixing 100g of epoxy resin and 5g of coal tar to obtain a mixture D1; mixing 1g of acetone, 1g of furfural and 1g of diethylenetriamine to obtain a mixture D2; mixture D1 and mixture D2 were mixed to give M4.
Example 5
Mixing 100g of epoxy resin and 35g of coal tar to obtain a mixture E1; mixing 15g of acetone, 30g of furfural and 30g of diethylenetriamine to obtain a mixture E2; mixture E1 and mixture E2 were mixed to give M5.
Comparative example 1
Mixing 100g of epoxy resin and 40g of coal tar to obtain a mixture F1; mixing 20g of acetone, 40g of furfural and 40g of diethylenetriamine to obtain a mixture F2; adding 30g of polyamide resin into the mixture F2 for mixing to obtain a mixture F3; the mixture F1 and the mixture F3 were mixed to give N1.
Comparative example 2
Mixing 100G of epoxy resin and 2G of coal tar to obtain a mixture G1; mixing 0.5G of acetone, 0.5G of furfural and 0.5G of diethylenetriamine to obtain a mixture G2; 30G of polyamide resin was added to the mixture G2 and mixed to give a mixture G3; mixture G1 and mixture G3 were mixed to give N2.
Comparative example 3
A commercially available conventional concrete binder N3.
Test example
Simulating the construction condition of combining the new concrete interface and the old concrete interface on site, and chiseling off the mortar layer on the surface of the old concrete to form a canine-shaped chiseled surface; the chiseled surfaces are cleaned, water-saturated cured, then respectively coated with M1-M5, N1, N2 and N3, new concrete with the thickness of 20cm is poured on the chiseled surfaces, the chiseled surfaces are placed for 28 days, and the drawing strength of the chiseled surfaces is detected according to GB50367-2013, and the obtained results are shown in Table 1.
TABLE 1
| Numbering | Tensile Strength (MPa) |
| M1 | 2.52 |
| M2 | 2.34 |
| M3 | 2.36 |
| M4 | 1.25 |
| M5 | 1.36 |
| N1 | 0.21 |
| N2 | 0.24 |
| N3 | 1.05 |
As can be seen from Table 1, the concrete adhesive prepared by the invention has better bonding performance when bonding new and old concrete, the drawing strength is far higher than that of the concrete adhesive not prepared by the invention and also higher than that of the concrete adhesive used conventionally, the bonding effect between the concrete can be better achieved when bonding the new and old concrete, so that a building is not easy to corrode, and the phenomena of concrete slag falling, block falling and the like are caused.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (8)
1. A concrete binder composition, characterized in that the concrete binder composition comprises epoxy resin, coal tar, acetone, furfural and a curing agent; relative to 100 parts by weight of the epoxy resin, 5-35 parts by weight of the coal tar, 1-15 parts by weight of the acetone, 1-30 parts by weight of the furfural and 1-30 parts by weight of the curing agent are used.
2. The concrete binder composition according to claim 1, wherein the coal tar is 10 to 20 parts by weight, the acetone is 2 to 8 parts by weight, the furfural is 5 to 15 parts by weight, and the curing agent is 5 to 15 parts by weight, relative to 100 parts by weight of the epoxy resin.
3. The concrete adhesive composition according to claim 1 or 2, wherein the concrete adhesive composition further comprises a polyamide resin; the polyamide resin is 10 to 30 parts by weight with respect to 100 parts by weight of the epoxy resin.
4. The concrete binder composition according to claim 1 or 2, wherein the curing agent is diethylenetriamine.
5. A method of preparing a concrete binder, the method comprising:
(1) mixing epoxy resin and coal tar to obtain a mixture A1;
(2) mixing acetone, furfural and a curing agent to obtain a mixture A2;
(3) mixing mixture A1 and mixture A2; wherein,
relative to 100 parts by weight of the epoxy resin, the coal tar is 5-35 parts by weight, the acetone is 1-15 parts by weight, the furfural is 1-30 parts by weight, and the curing agent is 1-30 parts by weight.
6. The production method according to claim 5, wherein the coal tar is used in an amount of 10 to 20 parts by weight, the acetone is used in an amount of 2 to 8 parts by weight, the furfural is used in an amount of 5 to 15 parts by weight, and the curing agent is used in an amount of 5 to 15 parts by weight, relative to 100 parts by weight of the epoxy resin.
7. The production method according to claim 5 or 6, wherein the step (2) is further followed by adding a polyamide resin to the mixture A2 for mixing; the polyamide resin is used in an amount of 10 to 30 parts by weight with respect to 100 parts by weight of the epoxy resin.
8. The production method according to claim 5 or 6, wherein the curing agent is diethylenetriamine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410351007.8A CN104072021B (en) | 2014-07-22 | Weld crete compositions and the preparation method of weld crete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410351007.8A CN104072021B (en) | 2014-07-22 | Weld crete compositions and the preparation method of weld crete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104072021A true CN104072021A (en) | 2014-10-01 |
| CN104072021B CN104072021B (en) | 2016-11-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107382148A (en) * | 2017-07-04 | 2017-11-24 | 汤始建华建材（苏州）有限公司 | A kind of multifunctional concrete and preparation method thereof |
| CN110950571A (en) * | 2019-12-19 | 2020-04-03 | 深圳市君辰装饰设计工程有限公司 | Machine-made sand regulator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1342737A (en) * | 2001-10-24 | 2002-04-03 | 中国科学院广州化学研究所 | Furfurylone epoxy slurry for engineering |
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1342737A (en) * | 2001-10-24 | 2002-04-03 | 中国科学院广州化学研究所 | Furfurylone epoxy slurry for engineering |
Non-Patent Citations (1)
| Title |
|---|
| 马榴强: "《精细化工工艺学》", 29 February 2008 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107382148A (en) * | 2017-07-04 | 2017-11-24 | 汤始建华建材（苏州）有限公司 | A kind of multifunctional concrete and preparation method thereof |
| CN110950571A (en) * | 2019-12-19 | 2020-04-03 | 深圳市君辰装饰设计工程有限公司 | Machine-made sand regulator |
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