CN108529921A - A kind of preparation method of the compound antifreezer of concrete for salvaging - Google Patents
A kind of preparation method of the compound antifreezer of concrete for salvaging Download PDFInfo
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- CN108529921A CN108529921A CN201810407101.9A CN201810407101A CN108529921A CN 108529921 A CN108529921 A CN 108529921A CN 201810407101 A CN201810407101 A CN 201810407101A CN 108529921 A CN108529921 A CN 108529921A
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- concrete
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- compound antifreezer
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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
- C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/601—Agents for increasing frost resistance
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The present invention relates to technical field of concrete additives, and in particular to a kind of preparation method of the compound antifreezer of concrete for salvaging, the preparation method of the compound antifreezer of the concrete for salvaging include the following steps：Alkyl organic amine, triterpenoid saponin, initiator, acrylamide, surfactant, graphene oxide silica composite are uniformly mixed in water, then heat to 60~80 DEG C, then 30 60min of ultrasound under conditions of supersonic frequency is 40 50KHz, it is subsequently added into diatomite, calgon, sodium sulphate, calcium lignosulfonate, sulfamate and sodium gluconate, continue to stir 5 15min to get to the compound antifreezer of the concrete for salvaging.The compound antifreezer of the concrete for salvaging of the present invention can accelerate the rate of set of concrete at 20 DEG C, improve the intensity and durability of concrete.
Description
Technical field
The present invention relates to technical field of concrete additives, and in particular to it is a kind of for salvaging concrete it is compound
The preparation method of antifreezing agent.
Background technology
Why concrete batching system can gradually condense hardening after pouring, and be due to cement water until obtaining final strength
The result of change effect.And the speed of cement aquation is with concrete composition material itself and match ratio except having outside the Pass, also with outside
Boundary's temperature is closely related.Hydration is accelerated when the temperature increases, and gain in strength is accelerated, and when temperature is reduced to 0 DEG C and spends, it deposits
Being the water in concrete, some starts to freeze, and gradually becomes solid phase (ice) from liquid phase (water), at this moment participates in hydrated cementitious
The water of effect reduces, and hydration slows down, and gain in strength is accordingly slack-off.Temperature continues to reduce, when being present in concrete
Water becomes ice completely, that is, when becoming solid phase by liquid phase completely, and cement aquation stops substantially, at this time the intensity of concrete
It will not increase again.When the molding temperature of concrete is less than 5 degree, the heat of hydration of cement will stop reacting, and the intensity of concrete will not
It can increase.Since water becomes volume after ice, while generating swelling stress, to make concrete by different degrees of destruction (i.e.
Early freezc destroys).In addition, after water becomes ice, the larger ice slush of particle can be also generated on aggregate and rebar surface, weakened
The cohesive force of cement mortar and aggregate and reinforcing bar.After ice slush melts, also various gaps can be formed in inside concrete, and reduced mixed
Coagulate the durability of soil.
Concrete for salvaging requires concrete just to have higher intensity and rate of set at condensation initial stage, but
It is that at low temperature, the rate of set of concrete is slow, to affect the intensity of concrete.Therefore, it is necessary to according to salvaging
Concrete production technology characteristic and technology require develop a kind of concrete antifreezer dedicated for salvaging.
Invention content
It is of the existing technology the purpose of the invention is to overcome the problems, such as, a kind of concrete for salvaging is provided
Compound antifreezer preparation method, this be used for salvage concrete compound antifreezer can at -40~-10 DEG C,
The rate of set for accelerating concrete, improves the intensity of concrete.
To achieve the goals above, the present invention provides a kind of preparation of the compound antifreezer of the concrete for salvaging
Method and step is as follows：
(1) in water simultaneously by graphene oxide GO, dicyclohexylcarbodiimide DCC, tributyl phosphate and silane coupling agent
Ultrasonic disperse is uniform, then under stirring conditions, and 6~12h is reacted under 60~120 DEG C of environment, is obtained after centrifuge washing drying
Modified GO；
(2) modified GO is scattered in the in the mixed solvent of formic acid, water and ethyl alcohol, then at 30~120 DEG C reaction 5~
For 24 hours, graphene oxide-silica composite is obtained after centrifuge washing drying, is labeled as GO-SiO2；
(3) by alkyl organic amine, triterpenoid saponin, initiator, acrylamide, surfactant, GO-SiO2It mixes in water
Uniformly, 60~80 DEG C are then heated to, then ultrasound 30-60min under conditions of supersonic frequency is 40-50KHz, is subsequently added into
Diatomite, calgon, sodium sulphate, calcium lignosulfonate, sulfamate and sodium gluconate continue to stir 5-15min,
Obtain the compound antifreezer of the concrete for salvaging.
Through the above technical solutions, the compound antifreezer of the concrete for salvaging of the present invention can be at low temperature
Multi-faceted regulation and control are carried out to the dispersion degree of concrete, air content, reaction rate and extent of reaction etc., the aquation for improving concrete is made
With so as to shorten the condensation firm time of concrete, and improving concrete in early strength, while shortening concrete coagulating time
And concrete 's air-containing is reduced, and the performance of the compound antifreezer is stablized, preparation process is simple, and suitable large-scale promotion makes
With being particluarly suitable for using during rush repair.
Specific implementation mode
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
The present invention provides a kind of compound antifreezer of the concrete for salvaging, by the raw material system of following parts by weight
At：Diatomite 10-20 parts by weight, 3~10 parts by weight of tributyl phosphate, calgon 2-8 parts by weight, sodium sulphate 3-6 weight
Part, 2~10 parts by weight of graphene oxide, 5~12 parts by weight of dicyclohexylcarbodiimide, alkyl organic amine 1-5 parts by weight, triterpene
It is saponin 0.2-1 parts by weight, initiator 2-5 parts by weight, acrylamide 6-12 parts by weight, surfactant 0.2-1 parts by weight, wooden
Plain sulfoacid calcium 2-8 parts by weight, sulfamate 3-8 parts by weight, sodium gluconate 8-10 parts by weight, 0.2~2 weight of silane coupling agent
Measure part, formic acid 0.1-1 parts by weight, ethyl alcohol 20-30 parts by weight.
In order to further decrease the compound antifreezer of the concrete for salvaging at -40~-10 DEG C to water
The water-reducing rate of cement concrete, setting time, improve the early strength of cement concrete, it is described for repairing work under optimum condition
The compound antifreezer of the concrete of journey is made of the raw material of following parts by weight：Diatomite 12-18 parts by weight, tributyl phosphate 5-8
Parts by weight, calgon 2.5-5 parts by weight, sodium sulphate 4-6 parts by weight, graphene oxide 5-8 parts by weight, dicyclohexyl carbon two
Imines 6-10 parts by weight, alkyl organic amine 2-3 parts by weight, triterpenoid saponin 0.5-0.8 parts by weight, initiator 2-5 parts by weight, propylene
Amide 8-10 parts by weight, surfactant 0.3-0.5 parts by weight, calcium lignosulfonate 3-5 parts by weight, sulfamate 5-6 weights
Measure part, sodium gluconate 8-10 parts by weight, silane coupling agent 0.5-1.5 parts by weight, formic acid 0.2-0.8 parts by weight, ethyl alcohol 20-30
Parts by weight.It is further preferred that the compound antifreezer of the concrete for salvaging, by the raw material system of following parts by weight
At：15 parts by weight of diatomite, 6 parts by weight of tributyl phosphate, 3 parts by weight of calgon, 5 parts by weight of sodium sulphate, graphite oxide
6 parts by weight of alkene, 8 parts by weight of dicyclohexylcarbodiimide, 2 amount part of alkyl organic amine, 0.8 parts by weight of triterpenoid saponin, 3 weight of initiator
Measure part, 10 parts by weight of acrylamide, 0.3 parts by weight of surfactant, 4 parts by weight of calcium lignosulfonate, 5 weight of sulfamate
Part, 10 parts by weight of sodium gluconate, 1 parts by weight of silane coupling agent, 0.5 parts by weight of formic acid, 25 parts by weight of ethyl alcohol.
Under optimum condition, the alkyl organic amine in diethanol amine, triethanolamine and triisopropanolamine at least one
Kind.
Under optimum condition, the initiator is selected from thioacetic acid, mercaptoethanol, 2 mercaptopropionic acid and n-dodecyl mercaptan
At least one of.
Surfactant is conducive to form more tiny bubble in whipping process, while can also play certain diminishing effect
Fruit.Under optimum condition, the surfactant is selected from alkyl trimethyl ammonium bromide, alkyl triethylammonium bromide, alkyl trimethyl
Ammonium chloride, alkyl triethyl ammonium chloride, phenyl or benzyltrimethylammonium chloride, phenyl or benzyltrimethylammonium bromide, alkyl miaow
At least one of oxazoline quaternary ammonium salt, alkyl-pyridiniums chloride or cetylpyridinium bromide salt.
Under optimum condition, the silane coupling agent is selected from γ-methacryloxypropyl trimethoxy silane, 3- methyl
Acryloxy trimethoxy silane, vinyltrimethoxysilane, N- β-(aminoethyl)-γ-aminopropyltrimethoxysilane,
γ-at least one of glycidyl ether oxygen propyl trimethoxy silicane and gamma-aminopropyl-triethoxy-silane.
Under optimum condition, the sulfamate is selected from dodecyl sodium sulfate, potassium dodecanesulfonate, cetyl sulphur
At least one of sour sodium and cetyl potassium sulfonate.
The present invention also provides a kind of preparation methods of the compound antifreezer of the concrete for salvaging, and step is such as
Under：
(1) in water simultaneously by graphene oxide GO, dicyclohexylcarbodiimide DCC, tributyl phosphate and silane coupling agent
Ultrasonic disperse is uniform, then under stirring conditions, and 6~12h is reacted under 60~120 DEG C of environment, is obtained after centrifuge washing drying
Modified GO；
(2) modified GO is scattered in the in the mixed solvent of formic acid, water and ethyl alcohol, then at 30~120 DEG C reaction 5~
For 24 hours, graphene oxide-silica composite is obtained after centrifuge washing drying, is labeled as GO-SiO2；
(3) by alkyl organic amine, triterpenoid saponin, initiator, acrylamide, surfactant, GO-SiO2It mixes in water
Uniformly, 60~80 DEG C are then heated to, then ultrasound 30-60min under conditions of supersonic frequency is 40-50KHz, is subsequently added into
Diatomite, calgon, sodium sulphate, calcium lignosulfonate, sulfamate and sodium gluconate continue to stir 5-15min,
Obtain the compound antifreezer of the concrete for salvaging.
The present invention for salvaging concrete compound antifreezer can to the dispersion degree of concrete, air content,
Reaction rate and the extent of reaction etc. carry out multi-faceted regulation and control and contract simultaneously to improve the early strength of concrete at low temperature
Short concrete coagulating time simultaneously reduces concrete 's air-containing, greatly improves the endurance quality of concrete, and described for robbing
The compound antifreezer dimensionally stable of the concrete of engineering is repaiied, preparation process is simple, raw material is environment friendly and pollution-free, is suitble to large-scale promotion
It uses.
Embodiment 1
(1) by 6g graphene oxide GO, 8g dicyclohexylcarbodiimide DCC, 6g tributyl phosphates and 1g γ-metering system
Acryloxypropylethoxysilane trimethoxy silane is in water and ultrasonic disperse is uniform, then under stirring conditions, is reacted under 80 DEG C of environment
10h obtains modified GO after centrifuge washing drying；
(2) modified GO is scattered in the in the mixed solvent of 0.5g formic acid, water and 25g ethyl alcohol, is then reacted at 100 DEG C
6h obtains graphene oxide-silica composite after centrifuge washing drying, is labeled as GO-SiO2；
(3) by 2g diethanol amine, 0.8g triterpenoid saponins, 3g 2 mercaptopropionic acids, 10g acrylamides, 0.3g cetyls three
Ethyl ammonium chloride, above-mentioned GO-SiO2It is uniformly mixed in water, then heats to 60~80 DEG C, be then 40- in supersonic frequency
Ultrasound 30-60min under conditions of 50KHz, is subsequently added into 15g diatomite, 3g calgons, 5g sodium sulphate, 4g sulfomethylated lignins
Sour calcium, 5g sodium cetanesulfonates and 10g sodium gluconates continue to stir 5-15min to get to the coagulation for salvaging
The compound antifreezer of soil.
Embodiment 2
(1) by 5g graphene oxide GO, 6g dicyclohexylcarbodiimide DCC, 5g tributyl phosphates and 0.5g N- β-(ammonia
Ethyl) simultaneously ultrasonic disperse is uniform in water for-γ-aminopropyltrimethoxysilane, then under stirring conditions, in 100 DEG C of environment
Lower reaction 8h obtains modified GO after centrifuge washing drying；
(2) modified GO is scattered in the in the mixed solvent of 0.2g formic acid, water and 20g ethyl alcohol, is then reacted at 60 DEG C
12h obtains graphene oxide-silica composite after centrifuge washing drying, is labeled as GO-SiO2；
(3) by 2g triisopropanolamines, 0.8g triterpenoid saponins, 2g thioacetic acid, 10g acrylamides, 0.5g cetyls three
Ethyl ammonium chloride, above-mentioned GO-SiO2It is uniformly mixed in water, then heats to 60~80 DEG C, be then 40- in supersonic frequency
Ultrasound 30-60min under conditions of 50KHz, is subsequently added into 12g diatomite, 5g calgons, 6g sodium sulphate, 3g sulfomethylated lignins
Sour calcium, 6g dodecyl sodium sulfates and 8g sodium gluconates continue to stir 5-15min to get to the coagulation for salvaging
The compound antifreezer of soil.
Embodiment 3
(1) by 8g graphene oxide GO, 10g dicyclohexylcarbodiimide DCC, 5g tributyl phosphates and 1.5g vinyl three
Methoxy silane is in water and ultrasonic disperse is uniform, then under stirring conditions, 12h, centrifuge washing is reacted under 60 DEG C of environment
Modified GO is obtained after drying；
(2) modified GO is scattered in the in the mixed solvent of 0.8g formic acid, water and 30g ethyl alcohol, is then reacted at 120 DEG C
5h obtains graphene oxide-silica composite after centrifuge washing drying, is labeled as GO-SiO2；
(3) by 3g triethanolamines, 0.5g triterpenoid saponins, 5g 2 mercaptopropionic acids, 8g acrylamides, 0.3g cetyls three
Ethyl ammonium chloride, above-mentioned GO-SiO2It is uniformly mixed in water, then heats to 60~80 DEG C, be then 40- in supersonic frequency
Ultrasound 30-60min under conditions of 50KHz, is subsequently added into 18g diatomite, 2.5g calgons, 4g sodium sulphate, 5g lignin
Sulfoacid calcium, 5g sodium cetanesulfonates and 10g sodium gluconates continue to stir 5-15min to get to for the mixed of salvaging
Coagulate the compound antifreezer of soil.
Embodiment 4
(1) by 2g graphene oxide GO, 5g dicyclohexylcarbodiimide DCC, 3g tributyl phosphates and 0.2g 3- methyl-props
Alkene acyloxy trimethoxy silane is in water and ultrasonic disperse is uniform, then under stirring conditions, is reacted under 120 DEG C of environment
6h obtains modified GO after centrifuge washing drying；
(2) modified GO is scattered in the in the mixed solvent of 0.1g formic acid, water and 30g ethyl alcohol, is then reacted at 30 DEG C
For 24 hours, graphene oxide-silica composite is obtained after centrifuge washing drying, is labeled as GO-SiO2；
(3) by 1g diethanol amine, 1g triterpenoid saponins, 5g 2 mercaptopropionic acids, 12g acrylamides, three second of 0.2g cetyls
Ammonium chloride, above-mentioned GO-SiO2It is uniformly mixed in water, then heats to 60~80 DEG C, be then 40- in supersonic frequency
Ultrasound 30-60min under conditions of 50KHz, is subsequently added into g diatomite, 2g calgons, 6g sodium sulphate, 2g lignin sulfonic acids
Calcium, 8g dodecyl sodium sulfates and 8g sodium gluconates continue to stir 5-15min to get to the concrete for salvaging
Compound antifreezer.
Embodiment 5
(1) by 10g graphene oxide GO, 12g dicyclohexylcarbodiimide DCC, 10g tributyl phosphates and 2g γ-shrink
Glycerine ether oxygen propyl trimethoxy silicane is in water and ultrasonic disperse is uniform, then under stirring conditions, anti-under 120 DEG C of environment
8h is answered, modified GO is obtained after centrifuge washing drying；
(2) modified GO is scattered in the in the mixed solvent of 1g formic acid, water and 20g ethyl alcohol, then reacts 6h at 80 DEG C, from
Graphene oxide-silica composite is obtained after heart washing is dry, is labeled as GO-SiO2；
(3) by 5g triisopropanolamines, 0.2g triterpenoid saponins, 2g dodecyls sulphur, 6g acrylamides, 1g cetyls three
Ethyl ammonium chloride, above-mentioned GO-SiO2It is uniformly mixed in water, then heats to 60~80 DEG C, be then 40- in supersonic frequency
Ultrasound 30-60min under conditions of 50KHz, is subsequently added into g diatomite, 8g calgons, 3g sodium sulphate, 8g lignin sulfonic acids
Calcium, 3g dodecyl sodium sulfates and 10g sodium gluconates continue to stir 5-15min to get to the concrete for salvaging
Compound antifreezer.
Comparative example 1
(1) GO is scattered in the in the mixed solvent of 0.5g formic acid, water and 25g ethyl alcohol, then reacts 5 at 30~120 DEG C
~for 24 hours, graphene oxide-silica composite is obtained after centrifuge washing drying, is labeled as GO-SiO2；
(2) by 2g diethanol amine, 0.8g triterpenoid saponins, 3g thioacetic acid, 10g acrylamides, three second of 0.3g cetyls
Ammonium chloride, above-mentioned GO-SiO2It is uniformly mixed in water, then heats to 60~80 DEG C, be then 40- in supersonic frequency
Ultrasound 30-60min under conditions of 50KHz, is subsequently added into 3g calgons, 5g sodium sulphate, 4g calcium lignosulfonates, 5g 16
Sodium alkyl sulfonate and 10g sodium gluconates continue stirring 5-15min and prevent to get to the compound of the concrete for salvaging
Freeze agent.
Comparative example 2
By 2g diethanol amine, 0.8g triterpenoid saponins, 3g thioacetic acid, 10g acrylamides, 0.3g cetyl triethyl group chlorine
Change ammonium, 6g graphene oxide GO and 1g silica are uniformly mixed in water, 60~80 DEG C are then heated to, then in supersonic frequency
Rate be 40-50KHz under conditions of ultrasound 30-60min, be subsequently added into 6g graphene oxide GO, 1g silica, 15g diatomite,
3g calgons, 5g sodium sulphate, 4g calcium lignosulfonates, 5g sodium cetanesulfonates and 10g sodium gluconates, continue to stir
5-15min is to get to the compound antifreezer of the concrete for salvaging.
Embodiment 1-5 and comparative example 1-2 antifreezing agents are added in the ratio of 3wt% in concrete, its not equality of temperature is tested
The lower different larval instar relative intensity ratio of degree, testing low temperature chamber used is manufactured by jiangsu wuxi city south China laboratory apparatus Co., Ltd
B2- type freezing-thawing test casees, operating voltage 220V, temperature range：- 40 DEG C~-10 DEG C, experimental result is as shown in table 1, empty
Antifreezing agent is not added in the concrete of white example.
Table 1：Concrete performance test result when -30 DEG C of the curing temperature that volume is 5%
The preferred embodiment of the present invention has been described above in detail, and still, the present invention is not limited thereto.In the skill of the present invention
In art conception range, technical scheme of the present invention can be carried out a variety of simple variants, including each technical characteristic with it is any its
Its suitable method is combined, and it should also be regarded as the disclosure of the present invention for these simple variants and combination, belongs to
Protection scope of the present invention.
Claims (6)
1. a kind of preparation method of the compound antifreezer of concrete for salvaging, which is characterized in that steps are as follows：
(1) graphene oxide GO, dicyclohexylcarbodiimide DCC, tributyl phosphate and silane coupling agent is in water and ultrasonic
It is uniformly dispersed, then under stirring conditions, 6~12h is reacted under 60~120 DEG C of environment, is modified after centrifuge washing drying
GO；
(2) modified GO is scattered in the in the mixed solvent of formic acid, water and ethyl alcohol, the then reaction 5~for 24 hours at 30~120 DEG C, from
Graphene oxide-silica composite is obtained after heart washing is dry；
(3) alkyl organic amine, triterpenoid saponin, initiator, acrylamide, surfactant, graphene oxide-silica is multiple
It closes object to be uniformly mixed in water, then heats to 60~80 DEG C, then ultrasound 30- under conditions of supersonic frequency is 40-50KHz
60min is subsequently added into diatomite, calgon, sodium sulphate, calcium lignosulfonate, sulfamate and sodium gluconate, after
Continuous stirring 5-15min is to get to the compound antifreezer of the concrete for salvaging.
2. the preparation method of the compound antifreezer of the concrete according to claim 1 for salvaging, feature exist
In the silane coupling agent is selected from γ-methacryloxypropyl trimethoxy silane, 3- methacryloxy trimethoxies
Base silane, vinyltrimethoxysilane, N- β-(aminoethyl)-γ-aminopropyltrimethoxysilane, γ-glycidyl ether oxygen
At least one of propyl trimethoxy silicane and gamma-aminopropyl-triethoxy-silane.
3. the preparation method of the compound antifreezer of the concrete according to claim 1 for salvaging, feature exist
In the alkyl organic amine is selected from least one of diethanol amine, triethanolamine and triisopropanolamine.
4. the preparation method of the compound antifreezer of the concrete according to claim 1 for salvaging, feature exist
In the initiator is selected from least one of thioacetic acid, mercaptoethanol, 2 mercaptopropionic acid and n-dodecyl mercaptan.
5. the preparation method of the compound antifreezer of the concrete according to claim 1 for salvaging, feature exist
In the surfactant is selected from alkyl trimethyl ammonium bromide, alkyl triethylammonium bromide, alkyl trimethyl ammonium chloride, alkyl
Triethyl ammonium chloride, phenyl or benzyltrimethylammonium chloride, phenyl or benzyltrimethylammonium bromide, alkyl imidazoline quaternary ammonium salt,
At least one of alkyl-pyridiniums chloride or cetylpyridinium bromide salt.
6. the preparation method of the compound antifreezer of the concrete according to claim 1 for salvaging, feature exist
In the sulfamate is selected from dodecyl sodium sulfate, potassium dodecanesulfonate, sodium cetanesulfonate and cetyl sulphur
At least one of sour potassium.
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| CN201810407101.9A CN108529921A (en) | 2018-05-02 | 2018-05-02 | A kind of preparation method of the compound antifreezer of concrete for salvaging |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113636780A (en) * | 2021-08-16 | 2021-11-12 | 山东高速集团有限公司创新研究院 | Concrete antifreezing agent and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104803624A (en) * | 2015-04-10 | 2015-07-29 | 武汉理工大学 | Preparation method of graphene bonding modified silica fume |
| CN105271882A (en) * | 2015-10-05 | 2016-01-27 | 刘平 | Ultralow temperature concrete antifreeze agent and application thereof |
-
2018
- 2018-05-02 CN CN201810407101.9A patent/CN108529921A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104803624A (en) * | 2015-04-10 | 2015-07-29 | 武汉理工大学 | Preparation method of graphene bonding modified silica fume |
| CN105271882A (en) * | 2015-10-05 | 2016-01-27 | 刘平 | Ultralow temperature concrete antifreeze agent and application thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113636780A (en) * | 2021-08-16 | 2021-11-12 | 山东高速集团有限公司创新研究院 | Concrete antifreezing agent and preparation method thereof |
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Application publication date: 20180914 |