CN114230220B - Additive composition of quick repairing material and application of additive composition in cement concrete - Google Patents
Additive composition of quick repairing material and application of additive composition in cement concrete Download PDFInfo
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- CN114230220B CN114230220B CN202111678240.3A CN202111678240A CN114230220B CN 114230220 B CN114230220 B CN 114230220B CN 202111678240 A CN202111678240 A CN 202111678240A CN 114230220 B CN114230220 B CN 114230220B
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses an additive composition of a quick repair material and application thereof in cement concrete, comprising the following components: 200-300 parts of water, 20-30 parts of diethanolamine, 260-300 parts of aluminum sulfate, 30-40 parts of ferric sulfate, 15-20 parts of lithium sulfate and 15-20 parts of magnesium oxide; the mixing mode of the components is as follows: heating water to 60-80 ℃, then sequentially adding diethanolamine, aluminum sulfate, ferric sulfate, lithium sulfate, magnesium oxide and other components, and stirring for 30-60 min; when the additive composition of the rapid repair material is applied to cement concrete, the additive amount is 6-8% of the mass of cement. According to the invention, the hardening time of cement can be obviously shortened and the strength of the cement can be enhanced by self-making the rapid repairing material and combining the rapid repairing material with other components; the method can be widely used for maintenance engineering of roads, bridges, tunnels and the like, can be used for mass production, and has strong usability and moderate cost.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to an additive composition of a quick repair material and application of the additive composition in cement concrete.
Background
Along with the rapid development of the economy in China, great progress is brought to the traffic industry, and meanwhile, the requirements on the infrastructure of roads, bridges, tunnels and the like are higher and higher. In recent years, the traffic load is heavy, the traffic density is increased, and the driving speed is increased, so that the damage of some traffic facilities is accelerated, and the cement concrete foundation maintenance work is more and more severe. The rapid repair material with excellent research performance will make a great contribution to society.
Conventional cement concrete repair materials can be classified into organic repair materials and inorganic repair materials. The organic repairing material utilizes the polymer to improve the flexibility of the repairing material and the bonding strength, and the compatibility with cement concrete base materials is ensured because most of the organic repairing material consists of cement. Inorganic repair materials such as sulfoaluminate repair materials, aluminate repair materials, phosphate repair materials, and the like are repair materials commonly used in engineering practice. Compared with the organic repair material, the inorganic repair material has the advantages of low cost and good compatibility, but has the defects of large brittleness, large shrinkage, lower bonding strength and the like, and influences the long-term performance and the durability. Therefore, a rapid repair material having good durability and high applicability and being applicable in a short time is required.
Disclosure of Invention
It is an object of the present invention to address at least the above problems and/or disadvantages and to provide at least the advantages described below.
To achieve these objects and other advantages and in accordance with the purpose of the invention, there is provided an additive composition for quick repairing material, comprising, in parts by weight:
200-300 parts of water, 20-30 parts of diethanolamine, 260-300 parts of aluminum sulfate, 30-40 parts of ferric sulfate, 15-20 parts of lithium sulfate and 15-20 parts of magnesium oxide.
Preferably, the composition further comprises the following components in parts by weight: 3-6 parts of hydroxycarboxylic acid, 4-8 parts of glycerin and 40-60 parts of modified nano carbon fiber.
Preferably, the composition comprises the following components in parts by weight: 200 parts of water, 20 parts of diethanolamine, 260 parts of aluminum sulfate, 30 parts of ferric sulfate, 15 parts of lithium sulfate and 16 parts of magnesium oxide.
Preferably, the composition comprises the following components in parts by weight: 200 parts of water, 20 parts of diethanolamine, 260 parts of aluminum sulfate, 30 parts of ferric sulfate, 15 parts of lithium sulfate, 16 parts of magnesium oxide, 3 parts of hydroxycarboxylic acid, 4 parts of glycerin and 40 parts of modified carbon nanofiber.
Preferably, the preparation method of the modified carbon nanofiber comprises the following steps:
mixing 50-80% nitric acid solution with 50-80% sulfuric acid solution, and adding the carbon nanofiber into the mixed acid solution; placing the mixture into a microwave and ultrasonic integrated reactor, simultaneously starting microwaves and ultrasonic waves to carry out cooperative treatment for 1-2 hours, wherein the microwave power is 120-300W, the ultrasonic power is 150-300W, the ultrasonic frequency is 30-35 KHz, and the temperature is 30-90 ℃; filtering out oxidized carbon nanofibers, washing, and centrifugally dehydrating;
II, adding oxidized nano carbon fiber into N, N-dimethylformamide, magnetically stirring for 30-60 min at the temperature of 60-80 ℃ and the stirring speed of 300-800 rpm, adding condensing agent 2- (7-azobenzotriazole) -N, N, N ', N' -tetramethylurea hexafluorophosphate, continuously stirring for 12-24 h under the dark condition, washing and centrifuging to obtain the modified nano carbon fiber.
Wherein the mass ratio of nitric acid to sulfuric acid is 1:3-5, the mass ratio of the nano carbon fiber to the mixed acid solution is 1:50-100, and the mass ratio of the nano carbon fiber, N, N-dimethylformamide and condensing agent 2- (7-azobenzotriazole) -N, N, N ', N' -tetramethyl urea hexafluorophosphate is 1:80-100:0.1-0.5.
Preferably, the components are mixed in the following manner: heating water to 60-80 ℃, then sequentially adding diethanolamine, aluminum sulfate, ferric sulfate, lithium sulfate and magnesium oxide, and stirring for 30-60 min.
Preferably, the components are mixed in the following manner: heating water to 60-80 ℃, then sequentially adding diethanolamine, aluminum sulfate, ferric sulfate, lithium sulfate, magnesium oxide, hydroxycarboxylic acid, glycerin and modified nano carbon fiber, and performing double-frequency ultrasonic treatment for 30-60 min, wherein the frequency of double-frequency ultrasonic treatment is respectively 30-35 kHz and 65-85 kHz, and the power of each ultrasonic frequency is 300-400W.
Preferably, the dosage of the additive composition of the rapid repair material is 6-8% of the mass of cement; the cement is any one of Portland cement, ordinary Portland cement and composite Portland cement.
The invention at least comprises the following beneficial effects: the additive composition of the rapid repairing material and the application of the additive composition in cement concrete take aluminum sulfate as a main component, and the additive composition can remarkably improve the performance of the cement repairing material, accelerate the initial setting time of the cement repairing material, strengthen the compressive strength of cement and meet the requirements of cement strength and durability through combination with other components.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
The specific embodiment is as follows:
the present invention is described in further detail below to enable those skilled in the art to practice the invention by reference to the specification.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
Example 1 ]
An additive composition of a quick repair material and application thereof in cement concrete, comprising:
step one, weighing 2000g of water, 200g of diethanolamine, 2600g of aluminum sulfate, 300g of ferric sulfate, 150g of lithium sulfate and 160g of magnesium oxide;
heating water to 60 ℃, sequentially adding diethanolamine, aluminum sulfate, ferric sulfate, lithium sulfate and magnesium oxide, and stirring for 30min to obtain an additive composition of the quick repair material;
step three, mixing and stirring an additive composition of the quick repair material with the silicate cement, wherein the additive composition of the quick repair material is 6% of the mass of the silicate cement; test according to GB/T35159-2017 appendix D experimental conditions, results: the initial setting time is 4.5min, and the final setting time is 11.5min; test according to GB/T35159-2017 appendix E experimental conditions, results: the compressive strength of 1d is 32.5MPa, and the compressive strength of 28d is 91.5 percent.
Example 2 ]
An additive composition of a quick repair material and application thereof in cement concrete, comprising:
step one, weighing 2500g of water, 250g of diethanolamine, 2600g of aluminum sulfate, 350g of ferric sulfate, 180g of lithium sulfate and 180g of magnesium oxide;
heating water to 60 ℃, sequentially adding diethanolamine, aluminum sulfate, ferric sulfate, lithium sulfate and magnesium oxide, and stirring for 30min to obtain an additive composition of the quick repair material;
step three, mixing and stirring an additive composition of the quick repair material with the silicate cement, wherein the additive composition of the quick repair material is 6% of the mass of the silicate cement; test according to GB/T35159-2017 appendix D experimental conditions, results: the initial setting time is 4.6min, and the final setting time is 11.8min; test according to GB/T35159-2017 appendix E experimental conditions, results: the compressive strength of 1d is 32.8MPa, and the compressive strength of 28d is 91.7 percent.
Example 3 ]
An additive composition of a quick repair material and application thereof in cement concrete, comprising:
step one, weighing 3000g of water, 300g of diethanolamine, 3000g of aluminum sulfate, 400g of ferric sulfate, 200g of lithium sulfate and 200g of magnesium oxide;
heating water to 60 ℃, sequentially adding diethanolamine, aluminum sulfate, ferric sulfate, lithium sulfate and magnesium oxide, and stirring for 30min to obtain an additive composition of the quick repair material;
step three, mixing and stirring an additive composition of the quick repair material with the silicate cement, wherein the additive composition of the quick repair material is 7% of the mass of the silicate cement; test according to GB/T35159-2017 appendix D experimental conditions, results: the initial setting time is 4.5min, and the final setting time is 11.3min; test according to GB/T35159-2017 appendix E experimental conditions, results: the 1d compressive strength is 33.2MPa, and the 28d compressive strength is 92.1 percent.
Example 4 ]
An additive composition of a quick repair material and application thereof in cement concrete, comprising:
step one, preparing modified carbon nanofiber:
mixing 50% nitric acid solution with 50% sulfuric acid solution, and adding the carbon nanofiber into the mixed acid solution; placing the mixture in a microwave and ultrasonic integrated reactor, and simultaneously starting microwave and ultrasonic to carry out cooperative treatment for 1h, wherein the microwave power is 120W, the ultrasonic power is 150W, the ultrasonic frequency is 35KHz, and the temperature is 60 ℃; filtering out oxidized carbon nanofibers, washing, and centrifugally dehydrating;
II, adding oxidized nano carbon fiber into N, N-dimethylformamide, magnetically stirring for 60min at the temperature of 60 ℃ and the stirring speed of 300rpm, adding a condensing agent of 2- (7-azobenzotriazole) -N, N, N ', N' -tetramethylurea hexafluorophosphate, continuously stirring for 24h under the dark condition, washing, and centrifuging to obtain the modified nano carbon fiber.
The mass ratio of nitric acid to sulfuric acid is 1:3, the mass ratio of the carbon nanofiber to the mixed acid solution is 1:50, and the mass ratio of the carbon nanofiber to the N, N-dimethylformamide to the condensing agent 2- (7-azobenzotriazole) -N, N, N ', N' -tetramethylurea hexafluorophosphate is 1:80:0.1.
Step two, weighing 2000g of water, 200g of diethanolamine, 2600g of aluminum sulfate, 300g of ferric sulfate, 150g of lithium sulfate, 160g of magnesium oxide, 30g of hydroxycarboxylic acid, 40g of glycerin and 400g of modified nano carbon fiber
Heating water to 60 ℃, then sequentially adding diethanolamine, aluminum sulfate, ferric sulfate, lithium sulfate, magnesium oxide, hydroxycarboxylic acid, glycerol and modified nano carbon fiber, and stirring for 30min; obtaining an additive composition of the quick repair material;
step four, mixing and stirring an additive composition of the quick repair material with the silicate cement, wherein the additive composition of the quick repair material accounts for 6% of the mass of the silicate cement; test according to GB/T35159-2017 appendix D experimental conditions, results: the initial setting time is 3.5min, and the final setting time is 9.5min; test according to GB/T35159-2017 appendix E experimental conditions, results: the 1d compressive strength is 44.1MPa, and the 28d compressive strength is 96.2 percent.
In the embodiment, the modified carbon nanofiber is obtained by oxidizing the carbon nanofiber to generate carboxyl on the surface of the carbon nanofiber and converting the carboxyl on the surface of the carbon nanofiber into an amide group with higher reactivity; the modification can enhance the dispersing effect of the nano carbon fiber in the cement, enhance the contact with the cement body, improve the cement void structure and enhance the compressive strength of the cement; in comparative example 1, the initial setting time and the final setting time were shorter and the compressive strength was enhanced.
Example 5 ]
An additive composition of a quick repair material and application thereof in cement concrete, comprising:
step one, preparing modified carbon nanofiber:
mixing 50% nitric acid solution with 50% sulfuric acid solution, and adding the carbon nanofiber into the mixed acid solution; placing the mixture in a microwave and ultrasonic integrated reactor, and simultaneously starting microwave and ultrasonic to carry out cooperative treatment for 1h, wherein the microwave power is 120W, the ultrasonic power is 150W, the ultrasonic frequency is 35KHz, and the temperature is 60 ℃; filtering out oxidized carbon nanofibers, washing, and centrifugally dehydrating;
II, adding oxidized nano carbon fiber into N, N-dimethylformamide, magnetically stirring for 60min at the temperature of 60 ℃ and the stirring speed of 300rpm, adding a condensing agent of 2- (7-azobenzotriazole) -N, N, N ', N' -tetramethylurea hexafluorophosphate, continuously stirring for 24h under the dark condition, washing, and centrifuging to obtain the modified nano carbon fiber.
The mass ratio of nitric acid to sulfuric acid is 1:3, the mass ratio of the carbon nanofiber to the mixed acid solution is 1:50, and the mass ratio of the carbon nanofiber to the N, N-dimethylformamide to the condensing agent 2- (7-azobenzotriazole) -N, N, N ', N' -tetramethylurea hexafluorophosphate is 1:80:0.1.
Step two, weighing 2000g of water, 200g of diethanolamine, 2600g of aluminum sulfate, 300g of ferric sulfate, 150g of lithium sulfate, 160g of magnesium oxide, 30g of hydroxycarboxylic acid, 40g of glycerin and 400g of modified nano carbon fiber
Heating water to 60 ℃, sequentially adding diethanolamine, aluminum sulfate, ferric sulfate, lithium sulfate, magnesium oxide, hydroxycarboxylic acid, glycerol and modified nano carbon fibers, and performing double-frequency ultrasonic treatment for 30min, wherein the frequency of double-frequency ultrasonic waves is 35kHz and 85kHz respectively, and the power of each ultrasonic frequency is 400W; obtaining an additive composition of the quick repair material;
step four, mixing and stirring an additive composition of the quick repair material with the silicate cement, wherein the additive composition of the quick repair material accounts for 6% of the mass of the silicate cement; test according to GB/T35159-2017 appendix D experimental conditions, results: the initial setting time is 3min, and the final setting time is 9min; test according to GB/T35159-2017 appendix E experimental conditions, results: the 1d compressive strength is 45.2MPa, and the 28d compressive strength is 96.7 percent.
In the embodiment, the modified carbon nanofiber is obtained by oxidizing the carbon nanofiber to generate carboxyl on the surface of the carbon nanofiber and converting the carboxyl on the surface of the carbon nanofiber into an amide group with higher reactivity; the modification can enhance the dispersing effect of the nano carbon fiber in the cement, enhance the contact with the cement body, improve the cement void structure and enhance the compressive strength of the cement; in the third step, double-frequency ultrasonic treatment is adopted, so that the mixing is more uniform; in comparative example 1, the initial setting time and the final setting time were shorter and the compressive strength was enhanced.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (2)
1. The additive composition of the quick repair material is characterized by comprising the following components in parts by weight: 200 parts of water, 20 parts of diethanolamine, 260 parts of aluminum sulfate, 30 parts of ferric sulfate, 15 parts of lithium sulfate, 16 parts of magnesium oxide, 3 parts of hydroxycarboxylic acid, 4 parts of glycerin and 40 parts of modified carbon nanofiber;
the mixing mode of the components is as follows: heating water to 60-80 ℃, sequentially adding diethanolamine, aluminum sulfate, ferric sulfate, lithium sulfate, magnesium oxide, hydroxycarboxylic acid, glycerol and modified carbon nanofiber, and performing double-frequency ultrasonic treatment for 30-60 min, wherein the frequency of double-frequency ultrasonic treatment is respectively 30-35 kHz and 65-85 kHz, and the power of each ultrasonic frequency is 300-400W;
the preparation method of the modified carbon nanofiber comprises the following steps:
mixing 50-80% nitric acid solution with 50-80% sulfuric acid solution, and adding the carbon nanofiber into the mixed acid solution; placing the mixture into a microwave and ultrasonic integrated reactor, and simultaneously starting microwaves and ultrasonic waves to carry out cooperative treatment for 1-2 hours, wherein the microwave power is 120-300W, the ultrasonic power is 150-300W, the ultrasonic frequency is 30-35 KHz, and the temperature is 30-90 ℃; filtering out oxidized carbon nanofibers, washing, and centrifugally dehydrating;
II, adding oxidized carbon nanofibers into N, N-dimethylformamide, magnetically stirring for 30-60 min at the temperature of 60-80 ℃ and the stirring speed of 300-800 rpm, adding a condensing agent of 2- (7-azobenzotriazole) -N, N, N ', N' -tetramethylurea hexafluorophosphate, continuously stirring for 12-24 h under the dark condition, washing, and centrifuging to obtain modified carbon nanofibers;
the mass ratio of nitric acid to sulfuric acid is 1:3-5, the mass ratio of the carbon nanofiber to the mixed acid solution is 1:50-100, and the mass ratio of the carbon nanofiber, N, N-dimethylformamide and the condensing agent 2- (7-azobenzotriazole) -N, N, N ', N' -tetramethylurea hexafluorophosphate is 1:80-100:0.1-0.5.
2. The application of the additive composition of the rapid repair material in cement concrete, which is characterized in that the dosage of the additive composition of the rapid repair material is 6-8% of the mass of cement; the cement is Portland cement.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086094A (en) * | 2014-07-16 | 2014-10-08 | 哈尔滨工业大学 | Carbon-nanotube-containing glass fiber wetting agent, and preparation method and application thereof |
| JP2016130206A (en) * | 2015-01-15 | 2016-07-21 | デンカ株式会社 | Spray cement mortar and spray cement concrete |
| KR101873488B1 (en) * | 2018-02-06 | 2018-07-02 | 정태지 | Eco-Friendly Mortar Composite for Repair Comprising Function of Preventing Neutralization and Saltdamage and Constructing Methods Using Thereof |
| CN111635201A (en) * | 2019-08-12 | 2020-09-08 | 河南德鑫新型建材有限公司 | Concrete fast repairing material for road and preparation process thereof |
| WO2020253675A1 (en) * | 2019-06-19 | 2020-12-24 | 科之杰新材料集团有限公司 | Waterproof stable base-free liquid setting accelerator and preparation method therefor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008030999A (en) * | 2006-07-28 | 2008-02-14 | Construction Research & Technology Gmbh | Liquid accelerator |
| CN109231871A (en) * | 2018-09-19 | 2019-01-18 | 攀枝花市吉源科技有限责任公司 | A kind of low-mix quantity high performance alkali-free chlorine-free liquid accelerator and preparation method thereof |
| CN111747675B (en) * | 2020-07-23 | 2022-06-17 | 中国科学院过程工程研究所 | Alkali-free accelerator and preparation method and application thereof |
| CN112723801B (en) * | 2021-01-13 | 2022-06-03 | 武汉大学 | Cement concrete pavement rapid repairing material and preparation method thereof |
-
2021
- 2021-12-31 CN CN202111678240.3A patent/CN114230220B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086094A (en) * | 2014-07-16 | 2014-10-08 | 哈尔滨工业大学 | Carbon-nanotube-containing glass fiber wetting agent, and preparation method and application thereof |
| JP2016130206A (en) * | 2015-01-15 | 2016-07-21 | デンカ株式会社 | Spray cement mortar and spray cement concrete |
| KR101873488B1 (en) * | 2018-02-06 | 2018-07-02 | 정태지 | Eco-Friendly Mortar Composite for Repair Comprising Function of Preventing Neutralization and Saltdamage and Constructing Methods Using Thereof |
| WO2020253675A1 (en) * | 2019-06-19 | 2020-12-24 | 科之杰新材料集团有限公司 | Waterproof stable base-free liquid setting accelerator and preparation method therefor |
| CN111635201A (en) * | 2019-08-12 | 2020-09-08 | 河南德鑫新型建材有限公司 | Concrete fast repairing material for road and preparation process thereof |
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