CN109574540A - A kind of antirust for reinforced concrete and preparation method thereof - Google Patents
A kind of antirust for reinforced concrete and preparation method thereof Download PDFInfo
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- CN109574540A CN109574540A CN201710894273.9A CN201710894273A CN109574540A CN 109574540 A CN109574540 A CN 109574540A CN 201710894273 A CN201710894273 A CN 201710894273A CN 109574540 A CN109574540 A CN 109574540A
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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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- 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
- C04B2103/61—Corrosion inhibitors
Abstract
The invention discloses a kind of antirust for reinforced concrete and preparation method thereof, including following components and weight percent: amino alcohol: 10% ~ 30%；Aliphatic ester: 20% ~ 36%；Sodium aluminate: 0.8% ~ 5%；Triethylene tetramine: 10% ~ 30%；Reinforcing fiber group: 0.5% ~ 10%；Water: 0% ~ 33.3%；The reinforcing fiber group includes carbon fiber and S glass fibre, and the present invention has the effect of the resistance rust effect for improving antirust for reinforced concrete and the intensity of raising armored concrete.
Description
Technical field
The present invention relates to reinforced concrete soil additive, more specifically, it relates to a kind of antirust for reinforced concrete and its
Preparation method.
Background technique
Armored concrete is widely applied in all kinds of architectural engineerings as a kind of economic, practical structural material.But due to
Reinforcement corrosion in armored concrete and caused by Building Structure Strength reduce, then cause serious economic loss even people
The event of member's injures and deaths is increasingly increasing.The Pore Solution of fresh inside concrete is in strong basicity, in such a case, reinforced concrete
Reinforcing bar inside soil is formed on its surface one layer of fine and close passivating film protection reinforcing bar.With prolonging for armored concrete active time
It is long, due to the entrance of chloride ion, carbon dioxide and water, the alkalinity of inside concrete is neutralized, passivating film is caused to be destroyed.So
Under the action of inside concrete potential difference electrochemical reaction occurs for reinforcing bar afterwards, then generates iron rust, cause reinforcing bar it is effective by
Power section reduces.In addition to this, lead to reinforcing bar volume expansion since reinforcing bar generates iron rust, cause the concrete protective outside reinforcing bar
Layer cracking, structural strength further decrease.It causes Building Structure Strength to reduce to reduce due to steel bar corrosion, finally shifts to an earlier date
Corrosion inhibitor can be added in the construction process, in armored concrete to delay the corrosion of reinforcing bar in armored concrete in the case where destruction.
Existing antirust for reinforced concrete can be roughly divided into three categories: inorganic corrosion inhibitor, organic corrosion inhibitor.Inorganic resistance rust
Agent is made of Inorganic chemical substance, and wherein nitrites are that earliest antirust for reinforced concrete is applied in research.Shen Qing Publication
It number is CN102320771A, the Chinese patent that data of publication of application is on 01 18th, 2012 discloses a kind of reinforced concrete anti-rusting
Agent, composed of the following components and weight percent composition:
Nitrite: 10.1~15.0%；
Calgon: 0.1%~1.0%；
Diethylenetriamine: 0.5~1.0%；
Thiocarbamide: 0.8~1.5%；
Sodium benzoate: 0.5~1.0%；
Methenamine: 1.0~1.5%；
Triethanolamine: 3.0~5.0%；
Water-reducing agent: 5.0~10.0%；
Air entraining agent: 0.001~0.005%；
Remaining is water.
By the antirust for reinforced concrete, reduces the ratio of Free water in concrete, improve armored concrete
Internal porosity layout.But the corrosion inhibitor containing nitrite in use can be to the mechanical property of armored concrete itself
It has an impact, the intensity of armored concrete can be reduced after concrete final set, while nitrite is toxic, when people touches reinforcing bar
It can be caused harm to the human body when concrete appearance.
And organic corrosion inhibitor to lead to the problem of very good solution inorganic inhibitor Central Asia nitrate content toxic, simultaneously
Organic corrosion inhibitor is without side-effects to concrete, but the effect of organic corrosion inhibitor is not so good as electrodeless corrosion inhibitor.So in reinforced concrete
Occurs mixed type antirust for reinforced concrete in the development course of native corrosion inhibitor.Mixing corrosion inhibitor has both the resistance of inorganic corrosion inhibitor
Effect of becoming rusty and nontoxic advantage.
But above-mentioned corrosion inhibitor is all to improve steel by forming oxidation film in rebar surface or being adsorbed on reinforcing bar
The corrosion resistance of reinforced concrete.Without in view of armored concrete itself water and titanium dioxide can be led to since deformation is cracked
Carbon enters inside armored concrete, and reinforcing bar is equivalent to and is directly exposed in air at this time, and the effect of corrosion inhibitor is caused to be suppressed
Even lose resistance rust effect.
Summary of the invention
In view of the deficienciess of the prior art, the purpose of the present invention one is to provide a kind of antirust for reinforced concrete, reach
The effect arrived.
To achieve the above object one, the present invention provides the following technical scheme that a kind of antirust for reinforced concrete, including with
Lower component and weight percent:
Amino alcohol: 10%~30%；
Aliphatic ester: 20%~36%；
Sodium aluminate: 0.8%~5%；
Triethylene tetramine: 10%~30%；
Reinforcing fiber group: 0.5%~10%；
Water: 0~33.3%；
The reinforcing fiber group includes carbon fiber and S glass fibre.
Through the above technical solutions, in actual use, antirust for reinforced concrete is straight when preparing armored concrete
Addition is connect to pour in the concrete smash.When steel bar corrosion inside armored concrete, happens is that electrochemical reaction, electrochemical reaction
Including cathodic reaction zone and anode reaction area, hereinafter referred to as cathodic region and anode region.Aliphatic ester occurs under alkaline environment
Hydrolysis, wherein hydrolysis of the aliphatic ester under alkaline environment is as follows: RCOOR '+OH-→RO2-+R'OH；Hydrolyze the acid generated
The calcium binding that root anion is carried with inside concrete quickly generates fatty acid salt, and fatty acid salt is in armored concrete
The cathodic region in portion generates protective film, reduces the harmful substance entered inside armored concrete, achievees the effect that protect reinforcing bar.Together
When, harmful ion such as chloride ion can be isolated in cathodic region in amino alcohol, protect reinforcing bar jointly with fatty acid salt.Triethylene tetramine is logical
It crosses its internal asymmetric electronics pair of nitrogen-atoms and is adsorbed on the surface of reinforcing bar, delay or prevent the reaction of anode region, into one
Step reduces the case where reinforcing bar is corroded.Meanwhile sodium aluminate can form protective film in anode region.Reinforcing fiber group can enhance
The bending resistance of armored concrete reduces the generation of shearing crack in reinforced concrete body, to reduce into armored concrete
The harmful substances such as water, the carbon dioxide in portion.Wherein the axial strength and modulus of carbon fiber are high, and density is low, higher than performance, without compacted
Become, superhigh temperature resistant under non-oxidizing atmosphere, fatigue durability is good, and carbon fiber insoluble and in-expandable, corrosion resistance in organic solvent, acid, alkali
It is prominent.S glass fibre is also known as high strength glass fiber, can be improved the intensity of armored concrete.
Further preferably are as follows: the amino alcohol is DEAE diethylaminoethanol.
Using above-mentioned setting, (electro-chemical test) discovery is studied, when use DEAE diethylaminoethanol is as alkamine
When organic matter, measured slow corrosion efficiency, which compares -2 methyl-1s of 2- amino-propyl alcohol, ethylene glycol etc., seems higher.
Further preferably are as follows: including following components and weight percent:
Amino alcohol: 20%~30%；
Aliphatic ester: 25%~30%；
Sodium aluminate: 0.8%~3.2%；
Triethylene tetramine: 10%~28%；
Reinforcing fiber group: 4%~8%；
Water: 0~33.3%.
Using above-mentioned setting, studied (electro-chemical test) discovery, the amino alcohol of the weight percent, aliphatic ester,
Under the collective effect of sodium aluminate, triethylene tetramine and reinforcing fiber group, the etching time of reinforcing bar is delayed.
Further preferably are as follows: including following components and weight percent:
Amino alcohol: 20%~30%；
Aliphatic ester: 25%~30%；
Sodium aluminate: 0.8%~3.2%；
Triethylene tetramine: 10%~28%；
Reinforcing fiber group: 4%~8%；
Magnesia: 2%~3%；Water: 0~33.3%；
The magnesia is dead roasting magnesia.
Using above-mentioned setting, the hydration reaction of dead roasting magnesia is slower, interior in the reinforced concrete member of normal construction
The dead roasting magnesia in portion usually requires that its expansion could be embodied for a period of time.When reinforced concrete member is due to inside and outside temperature
Degree variation and cause contraction fissure or due to reinforced concrete member itself creep cause Local Cracking when, magnesia can press down
The generation and expansion in system and obstruction crack.In addition to this, it is mixed to can be improved reinforcing bar at alkalinity for the hydrated product of dead roasting magnesia
Alkalinity inside solidifying soil, delays the corrosion of reinforcing bar outer passivation film.
Further preferably are as follows: also include following components: including following components and weight percent:
Amino alcohol: 20%~30%；
Aliphatic ester: 25%~30%；
Sodium aluminate: 0.8%~3.2%；
Triethylene tetramine: 10%~28%；
Reinforcing fiber group: 4%~8%；
Magnesia: 2%~3%；
Defoaming agent: 1%~2%；Water: 0~33.3%；
The defoaming agent uses organic silicon defoamer.
Using above-mentioned setting, corrosion inhibitor is added in armored concrete to be stirred and is poured when smashing, it is mixed in the reinforcing bar of flowable state
Solidifying soil is internal to generate bubble not of uniform size, and there are also micro moisture and air inside these bubbles.After concrete final set,
These moisture and air meeting corrosion reinforcing bar, accelerate the destruction of reinforced concrete structure.Organic silicon defoamer is added in corrosion inhibitor,
Reduce pour smash during bubble delay, extend the service life of armored concrete.
Further preferably are as follows: the partial size of the dead roasting magnesia is 32 μm -40 μm.
Using above-mentioned setting, after the completion of armored concrete pours, the intensity of early period is larger, and affected by environment small, then
Lengthening of the phase due to active time, the strength reduction of armored concrete itself, and be more prone to produce by influences such as ambient temperatures
Crack.When dead roasting magnesia partial size is less than 40 μm, the partial size of dead roasting magnesia is bigger, and the hydration reaction of early period is slower, energy
Enough cracks for more preferably filling up the generation of armored concrete later period.
In conclusion the invention has the following advantages: the cooperation for passing through inorganic resistance rust ingredient and organic resistance rust ingredient
It uses, and the material of reduction armored concrete self-strength is added, reach anode and cathode cooperation resistance rust and reduction reinforcing bar is mixed
The effect that harmful substance caused by solidifying soil cracks enters.
The purpose of the present invention two is to provide a kind of preparation method of antirust for reinforced concrete, to achieve the above object
Two, the present invention provides the following technical solutions, comprising the following steps:
Step 1: the amino alcohol, aliphatic ester and triethylene tetramine of corresponding proportion are mixed to get the first mixture；
Step 2: the sodium aluminate of corresponding proportion, reinforcing fiber group and dead roasting magnesia are mixed, the second mixture is obtained；
Step 3: the second mixture obtained in step 2 is added in the first mixture obtained into step 1, and stirring is equal
It is even, obtain third mixture；
Step 4: the water and organic silicon defoamer of corresponding proportion are added in third mixture, stirs evenly.
Wherein the weight percent of each component is as follows:
Amino alcohol: 20%~30%；
Aliphatic ester: 25%~30%；
Sodium aluminate: 0.8%~3.2%；
Triethylene tetramine: 10%~28%；
Reinforcing fiber group: 4%~8%；
Magnesia: 2%~3%；
Organic silicon defoamer: 1%~2%；Water: 0~33.3%；
Using above-mentioned setting, first by amino alcohol, aliphatic ester with triethylene tetramine these three it is non-solid mix, accelerate three
Mixing；Then three kinds of sodium aluminate, reinforcing fiber group and magnesia solids are mixed.It mixes, makes with solid by non-solid again
The composition mixing for obtaining antirust for reinforced concrete is more uniform.
Further preferably are as follows: step 1 includes step 1-1, step 1-2 and step 1-3,
Step 1-1: the amino alcohol of corresponding proportion, aliphatic ester are mixed with triethylene tetramine, it is heated to 110 under normal pressure~
125 DEG C, 10h is persistently kept the temperature, obtains mixture；
Step 1-2: mixture is dissolved in isooctane, the sodium hydrate aqueous solution and distilled water for being successively 4% with mass concentration
First mixture is washed to neutrality；
Step 1-3: the isooctane in product is steamed at 100 DEG C with Rotary Evaporators, while evaporating the water in mixture
Point, obtain the first mixture；
Step 2: the sodium aluminate of corresponding proportion, reinforcing fiber group and dead roasting magnesia are mixed, the second mixture is obtained；
Step 3: the second mixture obtained in step 2 is added in the first mixture obtained into step 1, and stirring is equal
It is even, obtain third mixture；
Step 4: the water and organic silicon defoamer of corresponding proportion are added in third mixture, stirs evenly.
Using above-mentioned setting, it is sufficiently mixed amino alcohol, aliphatic ester and triethylene tetramine, and will be mixed by sodium hydroxide
It closes object to wash to neutralization, reduces the situation for hydrolyzing the alkalinity inside the fatty acid reduction armored concrete of generation in mixture.
In conclusion the invention has the following advantages: further being mixed after individually being mixed by liquid phase, solid phase
Preparation, reaches each ingredient of corrosion inhibitor and is sufficiently mixed, and improves the purpose of resistance rust effect.
Specific embodiment
Below with reference to embodiment, the present invention will be described in detail.
Embodiment 1: a kind of antirust for reinforced concrete is prepared as follows to obtain, antirust for reinforced concrete packet
It is as shown in table 1 to include component.
Wherein amino alcohol use DEAE diethylaminoethanol, aliphatic ester using fatty acid methyl ester, fatty acid glyceride and
The one of which of methyl glycol fatty acid ester, the present embodiment selection methyl glycol fatty acid ester are tested；Reinforcing fiber group includes carbon
Fiber and S glass fibre, and the weight ratio of carbon fiber and S glass fibre is 1:2.5；The partial size of dead roasting magnesia selects 40 μ
m。
When preparing the antirust for reinforced concrete, steps are as follows:
Step 1-1: the amino alcohol of corresponding proportion, aliphatic ester being mixed with triethylene tetramine, are heated to 110 DEG C under normal pressure,
10h is persistently kept the temperature, mixture is obtained；
Step 1-2: mixture is dissolved in isooctane, the sodium hydrate aqueous solution and distilled water for being successively 4% with mass concentration
First mixture is washed to neutrality；
Step 1-3: the isooctane in product is steamed at 100 DEG C with Rotary Evaporators, while evaporating the water in mixture
Point, obtain the first mixture；
Step 2: the sodium aluminate of corresponding proportion, reinforcing fiber group and dead roasting magnesia are mixed, the second mixture is obtained；
Step 3: the second mixture obtained in step 2 is added in the first mixture obtained into step 1, and stirring is equal
It is even, obtain third mixture；
Step 4: the water and organic silicon defoamer of corresponding proportion are added in third mixture, stirs evenly.
Embodiment 2-28: a kind of antirust for reinforced concrete, the wherein component ratio in reinforcing fiber group and embodiment 1 one
Cause, and each component is also same as Example 1, only difference is that different from the weight percent in embodiment 1, component and its
Corresponding weight percent is such as shown in table 1-4.
Embodiment 29-35: a kind of antirust for reinforced concrete, uniquely the difference from embodiment 1 is that the weight hundred of component
Divide than different, component and its corresponding weight percent are as shown in table 5.
Component and its corresponding weight percent in 1. embodiment 1-7 of table
Component and its corresponding weight percent in 2. embodiment 8-14 of table
Component and its corresponding weight percent in 3. embodiment 15-20 of table
Component and its corresponding weight percent in 4. embodiment 21-28 of table
Component and its corresponding weight percent in 5. embodiment 29-35 of table
Embodiment 36-37: a kind of antirust for reinforced concrete, the difference from embodiment 1 is that, carbon fiber and S glass fibers
The weight percent of dimension is respectively 2:3 and 3.5:2.
Embodiment 38-39: a kind of antirust for reinforced concrete, the difference from embodiment 1 is that, aliphatic ester is selected respectively
Fatty acid methyl ester and fatty acid glyceride.
Embodiment 40: a kind of antirust for reinforced concrete, compared with Example 1 only difference is that in step 1-1
Difference, when preparing the antirust for reinforced concrete,
Step 1-1: DEAE diethylaminoethanol, methyl glycol fatty acid ester, triethylene tetramine are mixed according to the proportion, and a small amount of sulphur is added
PH value is adjusted to 3~4 by acid, and 125 DEG C, insulation reaction 10h are heated under normal pressure, is evaporated the water that reaction generates, is obtained mixture.
Embodiment 41-43: a kind of antirust for reinforced concrete, the difference from embodiment 1 is that, the particle of dead roasting magnesia
Diameter is respectively 32 μm, 35 μm and 38 μm.
Embodiment 44-45: a kind of antirust for reinforced concrete, the difference from embodiment 1 is that, the partial size of dead roasting magnesia
Respectively 28 μm and 42 μm.
In order to be contrasted with embodiment 1-40, thus by effect brought by the variation of each component and its content
It highlights, is provided with following each group comparative example.
Comparative example 1, a kind of antirust for reinforced concrete, the difference from embodiment 1 is that, sodium aluminate is not added, accordingly
Weight percent is supplied by water.
Comparative example 2, a kind of antirust for reinforced concrete, the difference with comparative example 1 are, do not add diethylamino second
Alcohol, corresponding weight percent are supplied by water.
Comparative example 3, a kind of antirust for reinforced concrete, the difference from embodiment 1 is that, reinforcing fiber group, phase are not added
The mass fraction answered is supplied by water.
The test of trial concrete crushing strength:
Test specimen: choosing embodiment 1-45 as test specimen 1-45, choose comparative example 1-3 as control sample 1-3, and from
Implement sample 1 to start to 3 number consecutively of control sample to be 1-48.
Test method: totally 48 groups of test specimen 1-45 and control sample 1-3 are chosen, identical volume is chosen and is commonly mixed with C25
Solidifying soil is stirred with the weight ratio of 1:25, and the concrete with corrosion inhibitor is made.Then the grade III steel for being 12mm with 4 diameters
As vertical muscle, use the round steel that diameter is 6mm as stirrup, the spacing of stirrup is 50mm, and above-mentioned reinforcing bar is bound into steel reinforcement cage, is put
Enter in prefabricated 200mm × 200 × 200mm concrete test block mold.2~3 blocks of padded reinforcing bars of stone are shelved in the bottom of mold
Cage enables the concrete after pouring molding to form concrete cover in bottom.Then it is poured in reference block mold
Concrete with corrosion inhibitor, every group pours 6 reference blocks.Reference block is put into standard curing room again to conserve, 7 days
After carry out demoulding.When armored concrete test block reaches 28 day age phase, the test block of each group is taken out, another standard curing is put into
Room, the standard curing room place dry ice in standard curing room using 4% sodium chloride solution as dampening solution, accelerate
Simulating the harmful substances such as extraneous chloride ion, moisture and carbon dioxide and entering armored concrete leads to the progress of reinforcement corrosion.It supports
Shield takes out three test blocks every time and every piece of test specimen is placed in standard after cleaning test block surface reaches cleaning after 14 days and 28 days
On compression Strength testing machine, successively applies pressure until surface of test piece is cracked, record pressure value at this time, take the anti-of test block
Compression strength typical value of the average value of Compressive Strength as the group.
Test result: the sample grade of compressive strength of 1-48 group is as shown in table 6.
The mean compressive strength table (Mpa) of 6. 1-48 group sample of table
Data analysis: when the effect of corrosion inhibitor is better, environment of the armored concrete test block in simulation Accelerated corrosion reinforcing bar
When middle, the speed that inner steel bar is corroded is slower, that is to say, that the mechanical property of armored concrete just retains better.Steel
The embodiment of reinforced concrete mechanical property numerically is exactly that compression strength can be bigger.
It is namely reacted by being compared the effect it is found that the resistance of antirust for reinforced concrete is become rusty between embodiment 1-7
The compression strength of armored concrete numerically reduces afterwards as the increase of the weight percent of DEAE diethylaminoethanol first improves
, from experimental data it is found that when the weight percent of DEAE diethylaminoethanol is 26%, the compression strength of armored concrete
Highest, and it is also relatively small in the loss of later period mechanical property.It is compared by embodiment 1 and comparative example 2 it is found that diethylamino second
Alcohol is conducive to improve the intensity of armored concrete.
It is compared by embodiment 8-14 and embodiment 1 it is found that when methyl glycol fatty acid ester is in antirust for reinforced concrete
Weight percent at 20% or more, the resistance rust effect of the weight percent of methyl glycol fatty acid ester and armored concrete is at negative
Correlativity, that is to say, that methyl glycol fatty acid ester needs to control in a certain range, its dosage is excessive and leads to steel to reduce
The resistance rust effect decline of reinforced concrete corrosion inhibitor.
It is compared by embodiment 15-20 and embodiment 1 it is found that working as weight of the triethylene tetramine in antirust for reinforced concrete
When percentage is in the numerical value of this experiment, the compression strength of armored concrete with the weight percent of triethylene tetramine increase
First improve reduces afterwards.And data are shown, and when the weight percent of triethylene tetramine is 28%, the compression strength of armored concrete
It is maximum.
It is compared by embodiment 21-25 and comparative example 3 it is found that reinforcing fiber group can significantly improve the resistance to compression of armored concrete
Intensity, that is to say, that other compositions in corrosion inhibitor can further be cooperated to reduce the cracking due to armored concrete and lead to reinforcing bar
The case where corrosion.And it is compared by embodiment 21-25 and embodiment 1 it is found that when reinforcing fiber group is in antirust for reinforced concrete
Weight percent at 4.3%, reinforcing fiber group and the fiting effect of other compositions in corrosion inhibitor are best, armored concrete
Compression strength is maximum, that is to say, that the degree of reinforced concrete corrosion is minimum, when the weight percent of reinforcing fiber group
When more than 4.3%, the effect of the intensity of reinforcing steel bar concrete is just no longer increased.
It is compared by embodiment 26-28 and comparative example 1 it is found that sodium aluminate can significantly improve the pressure resistance of armored concrete
Degree.It is compared with embodiment 1 it is found that when weight percent of the sodium aluminate in antirust for reinforced concrete is by embodiment 26-28
When 1.3%, sodium aluminate contributes the compression strength of armored concrete maximum.
It is compared by embodiment 29-30 and embodiment 34 it is found that dead roasting magnesia can be improved the pressure resistance of armored concrete
Degree can preferably allow antirust for reinforced concrete to play resistance rust effect, and joined the armored concrete of dead roasting magnesia
It is slower in the compression strength loss in later period.It is compared by embodiment 29-30 and embodiment 1 it is found that working as dead roasting magnesia weight percent
When than being 2.3%, the compression strength of armored concrete is maximum, that is to say, that the resistance rust effect of antirust for reinforced concrete is best.
By embodiment 31-32 and the comparison of embodiment 35 and embodiment 1 it is found that organic silicon defoamer can be improved reinforced concrete
The compression strength of soil can preferably allow antirust for reinforced concrete to play resistance rust effect.By embodiment 31-32 and embodiment
It is found that when organic silicon defoamer weight percent is 1.7%, the compression strength of armored concrete is maximum for 1 comparison, that is to say, that
The resistance rust effect of antirust for reinforced concrete is best.
It is compared by embodiment 34-35 and embodiment 33 it is found that dead roasting magnesia and organic silicon defoamer are existed simultaneously in steel
When in reinforced concrete corrosion inhibitor, the compression strength for improving armored concrete can be combined, that is to say, that enable to reinforced concrete
The resistance rust effect of native corrosion inhibitor is more preferable.
It is compared by embodiment 36-37 and embodiment 1 it is found that the weight of carbon fiber and S glass fibre in reinforcing fiber group
Influence of the ratio for the compression strength of armored concrete is simultaneously little.
It is compared by embodiment 38-39 and embodiment 1 it is found that when aliphatic ester is fatty acid methyl ester or fatty acid glyceride
Also or when methyl glycol fatty acid ester, the influence for the compression strength of armored concrete and little.
It is compared by embodiment 40 and embodiment 1 it is found that adding under normal pressure in step 1 when preparing antirust for reinforced concrete
When heat to 110 DEG C and 125 DEG C, the compression strength difference of armored concrete is little.
It is compared by embodiment 41-43 and embodiment 1 it is found that weight hundred of the dead roasting magnesia in antirust for reinforced concrete
Point than in identical situation, and when the partial size of dead roasting magnesia is between 32 μm and 40 μm, the partial size of dead roasting magnesia is bigger,
It is also bigger to the intensity contribution of armored concrete, that is to say, that the resistance rust effect of antirust for reinforced concrete is better.Meanwhile by reality
A 44-45 and the comparison of embodiment 1 are applied it is found that when the partial size of dead roasting magnesia is 40 μm, dead roasting magnesia is to armored concrete
Compression strength contribution it is maximum.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of antirust for reinforced concrete, which is characterized in that including following components and weight percent:
Amino alcohol: 10% ~ 30%；
Aliphatic ester: 20% ~ 36%；
Sodium aluminate: 0.8% ~ 5%；
Triethylene tetramine: 10% ~ 30%；
Reinforcing fiber group: 0.5% ~ 10%；
Water: 0 ~ 33.3%；
The reinforcing fiber group includes carbon fiber and S glass fibre.
2. a kind of antirust for reinforced concrete according to claim 1, which is characterized in that the amino alcohol is diethyl
Ethylaminoethanol.
3. a kind of antirust for reinforced concrete according to claim 2, which is characterized in that including following components and weight hundred
Divide ratio:
Amino alcohol: 20% ~ 30%；
Aliphatic ester: 25% ~ 30%；
Sodium aluminate: 0.8% ~ 3.2%；
Triethylene tetramine: 10% ~ 28%；
Reinforcing fiber group: 4% ~ 8%；Water: 0 ~ 33.3%.
4. a kind of antirust for reinforced concrete according to claim 3, which is characterized in that including following components and weight hundred
Divide ratio:
Amino alcohol: 20% ~ 30%；
Aliphatic ester: 25% ~ 30%；
Sodium aluminate: 0.8% ~ 3.2%；
Triethylene tetramine: 10% ~ 28%；
Reinforcing fiber group: 4% ~ 8%；
Magnesia: 2% ~ 3%；Water: 0 ~ 33.3%；
The magnesia is dead roasting magnesia.
5. a kind of antirust for reinforced concrete according to claim 4, which is characterized in that including following components and weight hundred
Divide ratio:
Amino alcohol: 20% ~ 30%；
Aliphatic ester: 25% ~ 30%；
Sodium aluminate: 0.8% ~ 3.2%；
Triethylene tetramine: 10% ~ 28%；
Reinforcing fiber group: 4% ~ 8%；
Magnesia: 2% ~ 3%；
Defoaming agent: 1% ~ 2%；Water: 0 ~ 33.3%；
The defoaming agent uses organic silicon defoamer.
6. a kind of antirust for reinforced concrete according to claim 4, which is characterized in that the partial size of the dead roasting magnesia
It is 32 μm -40 μm.
7. a kind of preparation method of antirust for reinforced concrete, which is characterized in that the weight percent of each component is wanted according to right
Ask 5 it is described configured, and the following steps are included:
Step 1: the amino alcohol, aliphatic ester and triethylene tetramine of corresponding proportion are mixed to get the first mixture；
Step 2: the sodium aluminate of corresponding proportion, reinforcing fiber group and dead roasting magnesia are mixed, the second mixture is obtained；
Step 3: the second mixture obtained in step 2 is added in the first mixture obtained into step 1, and stirring is equal
It is even, obtain third mixture；
Step 4: the water and organic silicon defoamer of corresponding proportion are added in third mixture, stirs evenly.
8. a kind of preparation method of antirust for reinforced concrete according to claim 7, it is characterised in that: step 1 includes
Step 1-1, step 1-2 and step 1-3,
Step 1-1: the amino alcohol of corresponding proportion, aliphatic ester are mixed with triethylene tetramine, are heated to 110 ~ 125 under normal pressure
DEG C, 10h is persistently kept the temperature, mixture is obtained；
Step 1-2: mixture is dissolved in isooctane, and the sodium hydrate aqueous solution and distilled water for being successively 4% with mass concentration will
First mixture is washed to neutrality；
Step 1-3: the isooctane in product is steamed at 100 DEG C with Rotary Evaporators, while evaporating the water in mixture
Point, obtain the first mixture；
Step 2: the sodium aluminate of corresponding proportion, reinforcing fiber group and dead roasting magnesia are mixed, the second mixture is obtained；
Step 3: the second mixture obtained in step 2 is added in the first mixture obtained into step 1, and stirring is equal
It is even, obtain third mixture；
Step 4: the water and organic silicon defoamer of corresponding proportion are added in third mixture, stirs evenly.
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| CN111517691A (en) * | 2020-05-26 | 2020-08-11 | 深圳市利泽恒有限公司 | Polymer waterproof agent, waterproof concrete material and waterproof mortar |
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| CN102653990A (en) * | 2012-04-27 | 2012-09-05 | 广厦建设集团有限责任公司 | Bidirectional electroosmosis repairing method of corrosive concrete structure |
| CN103058548A (en) * | 2012-12-26 | 2013-04-24 | 上海浦东路桥建设股份有限公司 | Reinforced concrete rust inhibitor and use method thereof |
| CN105541158A (en) * | 2015-12-29 | 2016-05-04 | 江苏苏博特新材料股份有限公司 | Glucosideflavonereinforcing steel barcorrosion inhibitor and preparation method thereof |
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| CN102190455A (en) * | 2010-03-12 | 2011-09-21 | 中国科学院金属研究所 | Doped non-nitrite-based corrosion inhibitor for steel bar in concrete |
| CN102653990A (en) * | 2012-04-27 | 2012-09-05 | 广厦建设集团有限责任公司 | Bidirectional electroosmosis repairing method of corrosive concrete structure |
| CN103058548A (en) * | 2012-12-26 | 2013-04-24 | 上海浦东路桥建设股份有限公司 | Reinforced concrete rust inhibitor and use method thereof |
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| CN111517691A (en) * | 2020-05-26 | 2020-08-11 | 深圳市利泽恒有限公司 | Polymer waterproof agent, waterproof concrete material and waterproof mortar |
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