CN109399986A - A kind of microcapsules support type chloride ion curing agent and its preparation method and application - Google Patents
A kind of microcapsules support type chloride ion curing agent and its preparation method and application Download PDFInfo
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- CN109399986A CN109399986A CN201811337730.5A CN201811337730A CN109399986A CN 109399986 A CN109399986 A CN 109399986A CN 201811337730 A CN201811337730 A CN 201811337730A CN 109399986 A CN109399986 A CN 109399986A
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- chloride ion
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1022—Non-macromolecular compounds
- C04B20/1025—Fats; Fatty oils; Ester type waxes; Higher fatty acids; Derivatives thereof
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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 present invention provides a kind of microcapsules support type chloride ion curing agent and its preparation method and application, the microcapsules support type chloride ion curing agent, by weight, it is prepared by 100~120 parts of stearic acid, 10~20 parts of acetic acid barium dusts, 5~15 parts of single sulfur type hydrated calcium aluminate sulfate powder.Microcapsules support type chloride ion curing agent of the invention coats active material acetic acid barium dust and single sulfur type hydrated calcium aluminate sulfate powder as cyst wall material using stearic acid, microcapsules support type chloride ion curing agent of the invention can be made to be stabilized in the cement concrete slurry of early stage, setting time and the working performance of cement concrete are not influenced, and the later period can promote hydrolysis product of cement AFm and AFt and form AFm structure ([Ca2Al(OH)6·2H2O]+), free chloride ion is made it combine, stable Friedel salt is formed, the free chloride ion in cement concrete is solidified, chloride ion solidification effect with higher.
Description
Technical field
The present invention relates to curing agent technology field, in particular to a kind of microcapsules support type chloride ion curing agent and its preparation
Methods and applications.
Background technique
In the process of construction of ocean, the marine resources such as sea sand and coral sand are of increasing concern.However, these marine resources
In chloride ion can spread and migrate in concrete, and be very likely to damage rebar surface passivating film, lead to reinforcing bar
Corrosion.In addition, in external environment, such as marine environment or deicing salt environment, chloride ion can be migrated from outside to coagulation
Native internal corrosion reinforcing bar.In this case, the iron rust that steel bar corrosion generates will generate volume expansion, weaken reinforcing bar and concrete
Binding force, cause the durability of reinforced concrete structure to reduce, generate weight huge economic loss.
Typically for the solution route of the harm of inside concrete free chloride ion corroded steel reinforcement, predominantly using stainless
Steel, Epoxy Rebar and corrosion inhibitor.But there are respective defects for these types of method, such as: stainless steel is expensive；Epoxy Rebar with
Bond stress is lower between cement, and epoxy coating is easy to be damaged during transportation, there is the risk of spot corrosion；Corrosion inhibitor is in bar list
Face forms protective film, prevents chloride ion from contacting reinforcing bar, and still, free chloride ion concentration is still higher, therefore in passivating film weakness
Region, reinforcing bar still face the risk of corrosion.Therefore, carrying out effectively solidification to the free chloride ion in concrete is effectively to prevent it
To reinforcement in concrete cause corrosion important means, but the relevant technologies it is studied it is less.
Summary of the invention
In view of this, the present invention is directed to propose a kind of microcapsules support type chloride ion curing agent, to solve existing concrete
The low problem of middle free chloride ion curing efficiency.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of microcapsules support type chloride ion curing agent, by weight, by 100~120 parts of stearic acid, 10~20 parts of second
Sour barium dust, 5~15 parts of single sulfur type hydrated calcium aluminate sulfate powder are prepared.
Optionally, by weight, single sulfur type hydrated calcium aluminate sulfate powder is by 133 parts of tricalcium aluminate powder, 86 parts
Dihydrate gypsum powder, 1000 parts of deionized waters are prepared.
Compared with the existing technology, microcapsules support type chloride ion curing agent of the present invention has the advantage that
Microcapsules support type chloride ion curing agent of the invention is using stearic acid as cyst wall material to active material acetic acid
Barium dust and single sulfur type hydrated calcium aluminate sulfate powder are coated, and microcapsules support type chloride ion curing agent of the invention can be made to exist
It is stabilized in the cement concrete slurry of early stage, does not influence setting time and the working performance of cement concrete, and with dampening
The progress of muddy water, the stearic acid cyst wall in microcapsules support type chloride ion curing agent are destroyed, and discharge active material barium acetate
Powder and single sulfur type hydrated calcium aluminate sulfate powder, promote hydrolysis product of cement AFm and AFt to form AFm structure ([Ca2Al(OH)6·
2H2O]+), make it combine free chloride ion, form stable Friedel salt, thus make microcapsules support type chlorine of the invention from
Sub- curing agent chloride ion solidification effect with higher, 28d chloride ion curing degree, up to 63%, and then make up to 60%, 90d
It obtains free chloride ion in cement concrete to substantially reduce the harm of reinforcing bar, extends the military service longevity of reinforced concrete structure
Life.
The second object of the present invention is to propose a kind of method for preparing above-mentioned microcapsules support type chloride ion curing agent, with
Solve the problems, such as that free chloride ion curing efficiency is low in existing concrete.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A method of preparing above-mentioned microcapsules support type chloride ion curing agent, comprising the following steps:
1) stearic acid is heated and is melted, then, then acetic acid barium dust and single sulfur type aquation are added into the stearic acid of fusing
Calcium sulphoaluminate powder, stirring, obtains melt solution A；
2) the melt solution A is added in dehydrated alcohol, is filtered, obtain initial microcapsules support type chloride ion solidification
Agent；
3) at room temperature, the initial microcapsules support type chloride ion curing agent is dried in vacuo, then, is crushed, grinding,
Obtain microcapsules support type chloride ion curing agent.
Optionally, the method for list sulfur type hydrated calcium aluminate sulfate powder described in the step 1) is prepared, comprising the following steps:
Tricalcium aluminate powder, dihydrate gypsum powder are add to deionized water, 14d is stirred, filtering obtains initial single sulphur
Type hydrated calcium aluminate sulfate；
At room temperature, initial single sulfur type hydrated calcium aluminate sulfate is dried in vacuo 3d, then, is crushed, grinding, obtains list
Sulfur type hydrated calcium aluminate sulfate powder.
Optionally, it is 0 that the fineness of list sulfur type hydrated calcium aluminate sulfate powder described in the step 1), which is 80 μm of tailing over for sieve,；
The fineness of the acetic acid barium dust be 45 μm sieve tail over less than 15%.
Optionally, the heating temperature that fusing is heated described in the step 1) is 65~75 DEG C.
Optionally, the temperature of dehydrated alcohol described in the step 2) is 0~10 DEG C.
Optionally, vacuum drying drying time described in the step 3) is 5~7h.
Optionally, the fineness of microcapsules support type chloride ion curing agent described in the step 3) is tailing over for 100 meshes
It is 0.
Compared with the existing technology, the preparation method of microcapsules support type chloride ion curing agent of the present invention has following
Advantage:
1, the preparation method of microcapsules support type chloride ion curing agent of the invention is by will be as the tristearin of cyst wall material
Acid fusing, then unformed aluminium hydroxide powder is coated in stearic acid, microcapsules support type chloride ion curing agent is made, entirely
Preparation process is simple, and reaction condition is mild, easy to industrialized production.
2, the microcapsules support type chlorine prepared using the preparation method of microcapsules support type chloride ion curing agent of the invention
Cationic cure agent can be stabilized in cement concrete slurry, not influence setting time and the working performance of cement concrete,
And chloride ion solidification effect with higher, 28d chloride ion curing degree up to 60%, 90d up to 63% so that coagulating cement
Free chloride ion substantially reduces the harm of reinforcing bar in soil, extends the service life of reinforced concrete structure.
The third object of the present invention is to propose application of the above-mentioned microcapsules support type chloride ion curing agent in concrete,
To solve the problems, such as that free chloride ion content is high in existing concrete.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
Application of the above-mentioned microcapsules support type chloride ion curing agent in concrete, the microcapsules support type chloride ion are solid
The volume of agent is 2~4% of binder total amount in the concrete.
Compared with the existing technology, application tool of the microcapsules support type chloride ion curing agent of the present invention in concrete
There is following advantage:
Above-mentioned microcapsules support type chloride ion curing agent is applied in concrete by the present invention, can substantially reduce in concrete
The amount of free chloride ion, and then the reinforcing bar resistant to rust ability of made concrete is improved, to be conducive to extend the structure of concrete
Service life has huge economic benefit and social benefit.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
Below in conjunction with embodiment, the present invention will be described in detail.
Embodiment 1
A kind of microcapsules support type chloride ion curing agent, by weight, by 100~120 parts of stearic acid, 10~20 parts of second
Sour barium dust, 5~15 parts of single sulfur type hydrated calcium aluminate sulfate powder are prepared.Wherein, by weight, single sulfur type aquation sulphur aluminium
Sour calcium powder is prepared by 133 parts of tricalcium aluminate powder, 86 parts of dihydrate gypsum powder, 1000 parts of deionized waters.
The microcapsules support type chloride ion curing agent of the present embodiment, can be with using acetic acid barium dust as main active
Hydrated product list sulfur type hydrated calcium aluminate sulfate (AFm) and calcium trisulphoaluminate hydrate (AFt) reaction in cement containing element sulphur,
Barium sulfate precipitate is formed, so that AFm and AFt desulfurization be made to form AFm structure ([Ca2Al(OH)6·2H2O]+), which can
In conjunction with the free chloride ion in concrete, Friedel salt ([Ca is formed2Al(OH)6·2H2O]2·Cl2·4H2O), make coagulation
Free chloride ion in soil is converted to non-free chloride ion, reduces the risk for even being eliminated steel bar corrosion.Micro- glue of the present embodiment
Capsule support type chloride ion curing agent, can be anti-with barium acetate using single sulfur type hydrated calcium aluminate sulfate powder as secondary active constituent
It answers, forms more AFm structure ([Ca2Al(OH)6·2H2O]+), make it in conjunction with the free chloride ion in concrete, is formed
Friedel salt, and then further increase chloride ion curing degree.
Because barium acetate is added directly into the gypsum being easy in cement slurry in cement slurry reaction, barium sulfate precipitate is formed,
And then setting time and the working performance of cement concrete are influenced, and single sulfur type hydrated calcium aluminate sulfate is added directly into cement slurry
In easily promote hydrolysis product of cement AFt largely to be formed, not only influence cement work performance, but also will aggravate cement volume change
Change, influences the mechanical property and endurance quality of hardened paste, therefore, the microcapsules support type chloride ion curing agent of the present embodiment is adopted
Stearic acid is used to coat as cyst wall material to active material acetic acid barium dust and single sulfur type hydrated calcium aluminate sulfate powder, because hard
Resin acid can be stabilized in the cement slurry stage, not influence the working performance of cement slurry, and in the hydrated cementitious later period, due to
The erosion of cement neutral and alkali environment, the stearic acid as cyst wall material are gradually corroded, the active material barium acetate as capsule-core
Powder and single sulfur type hydrated calcium aluminate sulfate powder are exposed in the pore solution of hardening of cement body, to the freedom in cement concrete
Chloride ion is solidified, the two collective effect make the microcapsules support type chloride ion curing agent of the present embodiment on the one hand have compared with
On the other hand high chloride ion solidification effect can reduce it to the working performance of cement slurry and the influence of setting time.
A method of preparing above-mentioned microcapsules support type chloride ion curing agent, comprising the following steps:
1) stearic acid is heated and is melted, then, then acetic acid barium dust and single sulfur type aquation are added into the stearic acid of fusing
Calcium sulphoaluminate powder, stirring, obtains melt solution A；
2) the melt solution A is added in dehydrated alcohol, is filtered, obtain initial microcapsules support type chloride ion solidification
Agent；
3) at room temperature, the initial microcapsules support type chloride ion curing agent is dried in vacuo, then, is crushed, grinding,
Obtain microcapsules support type chloride ion curing agent.
The preparation method of the microcapsules support type chloride ion curing agent of the present embodiment passes through will be as the tristearin of cyst wall material
Acid fusing, then unformed aluminium hydroxide powder is coated in stearic acid, microcapsules support type chloride ion curing agent is made, entirely
Preparation process is simple, and reaction condition is mild, easy to industrialized production.Solidified using the microcapsules support type chloride ion of the present embodiment
The microcapsules support type chloride ion curing agent of the preparation method preparation of agent can be stabilized in cement concrete slurry, not influenced
The setting time of cement concrete and working performance, and chloride ion solidification effect with higher, can substantially reduce coagulating cement
Harm of the free chloride ion for reinforcing bar in soil, extends the service life of reinforced concrete structure.
In the present embodiment, single sulfur type hydrated calcium aluminate sulfate powder in step 1) is self-control, especially by following step
It is rapid to be made:
Tricalcium aluminate powder, dihydrate gypsum powder are add to deionized water, 14d is stirred, filtering obtains initial single sulphur
Type hydrated calcium aluminate sulfate；
At room temperature, it initially will be dried in vacuo 3d by single sulfur type hydrated calcium aluminate sulfate, and then, be crushed, grinding, obtain single sulfur type
Hydrated calcium aluminate sulfate powder.
The preparation process of the present embodiment list sulfur type hydrated calcium aluminate sulfate powder is simple, and reaction condition is loose, and list obtained
Sulfur type hydrated calcium aluminate sulfate powder crystallization state is good, degree of purity is high, can effectively facilitate barium acetate and react with AFm and AFt.
In addition, in the present embodiment, in order to guarantee single sulfur type hydrated calcium aluminate sulfate and barium acetate activity with higher, step
It is rapid 1) in the fineness of single sulfur type hydrated calcium aluminate sulfate powder be preferably 80 μm of tailing over for sieve be 0, the fineness of acetic acid barium dust is preferred
For 45 μm sieve tail over less than 15%.And in the present embodiment, in order to enable stearic acid sufficiently to melt, to single sulfur type aquation
Calcium sulphoaluminate powder and acetic acid barium dust are sufficiently wrapped up, and the heating temperature of heating fusing is preferably 65~75 in step 1)
℃。
Moreover, in the present embodiment, on the one hand in order to remove extra stearic acid impurity, while not destroying established micro-
Capsule, the temperature of dehydrated alcohol is preferably 0~10 DEG C in step 2).
Meanwhile in the present embodiment, in order to obtain pure microcapsules support type chloride ion curing agent, and make made
Microcapsules support type chloride ion curing agent can be good at being dispersed in cement concrete slurry, to improve made microcapsules load
Type chloride ion curing agent is to the solidification effect of free chloride ion in cement concrete, and vacuum drying drying time is excellent in step 3)
It is selected as 5~7h, the fineness of microcapsules support type chloride ion curing agent is preferably that tailing over for 100 meshes is 0.
Embodiment 2
A kind of microcapsules support type chloride ion curing agent is made especially by following steps:
1) by weight, 100 parts of stearic acid are melted by the way of heating water bath, wherein the temperature of water-bath is 65
DEG C, then, then the acetic acid barium dust tailed over less than 15% and 5 parts of 80 μm of sieves that 10 parts 45 μm are sieved are added into the stearic acid of fusing
The single sulfur type hydrated calcium aluminate sulfate powder tailed over as 0, stir evenly, obtain melt solution A；
2) by heat melt solution A be added dropwise in 10 DEG C of dehydrated alcohol, filter, obtain initial microcapsules support type chlorine from
Sub- curing agent；
3) at room temperature, then initial microcapsules support type chloride ion curing agent vacuum drying 5h is crushed, is ground to
Particle is all logical to be sieved with 100 mesh sieve, and microcapsules support type chloride ion curing agent is obtained.
In the present embodiment, single sulfur type hydrated calcium aluminate sulfate powder is made especially by following steps:
By weight, 135 parts of tricalcium aluminate powder, 86 parts of dihydrate gypsum powder are added to 1000 parts of deionized waters
In, 14d is persistently stirred using magnetic stirring apparatus, is filtered, initial single sulfur type hydrated calcium aluminate sulfate is obtained；
At room temperature, it initially will be dried in vacuo 3d by single sulfur type hydrated calcium aluminate sulfate, and then, be crushed, be ground to particle whole
It is sieved by 80 μm, obtains single sulfur type hydrated calcium aluminate sulfate powder.
Embodiment 3
A kind of microcapsules support type chloride ion curing agent is made especially by following steps:
1) by weight, 120 parts of stearic acid are melted by the way of heating water bath, wherein the temperature of water-bath is 75
DEG C, then, then into the stearic acid of fusing be added 20 parts 45 μm sieve the acetic acid barium dusts tailed over less than 15% and 15 parts 80 μm
The single sulfur type hydrated calcium aluminate sulfate powder of sieve tailed over as 0, stirs evenly, obtains melt solution A；
2) by heat melt solution A be added dropwise in 0 DEG C of dehydrated alcohol, filter, obtain initial microcapsules support type chlorine from
Sub- curing agent；
3) at room temperature, then initial microcapsules support type chloride ion curing agent vacuum drying 7h is crushed, is ground to
Particle is all logical to be sieved with 100 mesh sieve, and microcapsules support type chloride ion curing agent is obtained.
In the present embodiment, single sulfur type hydrated calcium aluminate sulfate powder is made especially by following steps:
By weight, 135 parts of tricalcium aluminate powder, 86 parts of dihydrate gypsum powder are added to 1000 parts of deionized waters
In, 14d is persistently stirred using magnetic stirring apparatus, is filtered, initial single sulfur type hydrated calcium aluminate sulfate is obtained；
At room temperature, it initially will be dried in vacuo 3d by single sulfur type hydrated calcium aluminate sulfate, and then, be crushed, be ground to particle whole
It is sieved by 80 μm, obtains single sulfur type hydrated calcium aluminate sulfate powder.
The microcapsules support type chloride ion curing agent of embodiment 2 and embodiment 3 is applied in concrete, and according to water conservancy
Professional standard SL352-2006 " concrete for hydraulic structure testing regulations " tests its chloride ion curing degree, test result such as table 2
It is shown, wherein the match ratio of made concrete is as shown in table 1, and the microcapsules support type chloride ion of embodiment 2 and embodiment 3 is solid
The volume of agent is respectively 4% and 2% of binder total amount in concrete, wherein and cementitious material includes cement, flyash,
I.e. the microcapsules support type chloride ion curing agent of embodiment 2 and embodiment 3 is mixed to be added to by the way of mixing cementitious material outside
In solidifying soil.Experimentation selects source of the sodium chloride as chloride ion, is directly dissolved in mixing water and is added in concrete, controls
The content of chloride ion processed is the 0.12% of chiltern amount.Chloride ion curing degree R can be calculated according to following formula:
R=(Ct-Cf)/Ct× 100%
In formula, CtFor total chloridion content in concrete, can be calculated according to the sodium chloride quality of addition；CfFor
Water-soluble free chloride ion content in concrete, by measuring.
Table 1
Table 2
As shown in Table 2, relative to comparative example, solidified using the present embodiment 2 and the microcapsules support type chloride ion of embodiment 3
Agent chloride ion curing degree with higher, wherein using the concrete of the microcapsules support type chloride ion curing agent of embodiment 3
28d chloride ion curing degree up to 60%, 90d up to 63%, illustrate the microcapsules support type chlorine of the present embodiment 2 and embodiment 3 from
Sub- curing agent concrete chloride ion curing efficiency with higher.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of microcapsules support type chloride ion curing agent, which is characterized in that by weight, by 100~120 parts of stearic acid,
10~20 parts of acetic acid barium dusts, 5~15 parts of single sulfur type hydrated calcium aluminate sulfate powder are prepared.
2. microcapsules support type chloride ion curing agent according to claim 1, which is characterized in that by weight, described
Single sulfur type hydrated calcium aluminate sulfate powder is by 133 parts of tricalcium aluminate powder, 86 parts of dihydrate gypsum powder, 1000 parts of deionized water preparations
It forms.
3. a kind of method for preparing microcapsules support type chloride ion curing agent of any of claims 1 or 2, which is characterized in that packet
Include following steps:
1) stearic acid is heated and is melted, then, then acetic acid barium dust and single sulfur type aquation sulphur aluminium are added into the stearic acid of fusing
Sour calcium powder, stirring, obtains melt solution A；
2) the melt solution A is added in dehydrated alcohol, filters, obtains initial microcapsules support type chloride ion curing agent；
3) at room temperature, the initial microcapsules support type chloride ion curing agent is dried in vacuo, then, is crushed, grinding, obtains
Microcapsules support type chloride ion curing agent.
4. the preparation method of microcapsules support type chloride ion curing agent according to claim 3, which is characterized in that preparation institute
The method for stating the hydrated calcium aluminate sulfate powder of list sulfur type described in step 1), comprising the following steps:
Tricalcium aluminate powder, dihydrate gypsum powder are add to deionized water, 14d is stirred, filtering obtains initial single sulfur type water
Change calcium sulphoaluminate；
At room temperature, initial single sulfur type hydrated calcium aluminate sulfate is dried in vacuo 3d, then, is crushed, grinding, obtains single sulfur type
Hydrated calcium aluminate sulfate powder.
5. the preparation method of microcapsules support type chloride ion curing agent according to claim 3, which is characterized in that the step
It is rapid 1) described in list sulfur type hydrated calcium aluminate sulfate powder fineness be 80 μm of sieves to tail over be 0；The fineness of the acetic acid barium dust
For 45 μm sieve tail over less than 15%.
6. the preparation method of microcapsules support type chloride ion curing agent according to claim 3, which is characterized in that the step
It is rapid 1) described in heat fusing heating temperature be 65~75 DEG C.
7. the preparation method of microcapsules support type chloride ion curing agent according to claim 3, which is characterized in that the step
It is rapid 2) described in dehydrated alcohol temperature be 0~10 DEG C.
8. the preparation method of microcapsules support type chloride ion curing agent according to claim 3, which is characterized in that the step
It is rapid 3) described in vacuum drying drying time be 5~7h.
9. the preparation method of microcapsules support type chloride ion curing agent according to claim 3, which is characterized in that the step
It is rapid 3) described in the fineness of microcapsules support type chloride ion curing agent be tailing over for 100 meshes be 0.
10. application of the microcapsules support type chloride ion curing agent of any of claims 1 or 2 in concrete, which is characterized in that
The volume of the microcapsules support type chloride ion curing agent is 2~4% of binder total amount in the concrete.
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| CN110255951A (en) * | 2019-04-11 | 2019-09-20 | 武汉理工大学 | A kind of barium base chloride ion curing agent and its preparation method and application |
| CN110316990A (en) * | 2019-06-14 | 2019-10-11 | 武汉理工大学 | Calcium aluminum-based layered double-hydroxide chloride ion curing agent and its preparation method and application |
| CN110697744A (en) * | 2019-09-16 | 2020-01-17 | 中国电力科学研究院有限公司 | Ba2+Method for preparing AFm-OH by interfering and utilizing AFt |
| CN112125571A (en) * | 2020-09-27 | 2020-12-25 | 武汉理工大学 | Porous ceramic supported chloride ion curing agent and preparation method and application thereof |
| CN112142355A (en) * | 2020-09-27 | 2020-12-29 | 武汉理工大学 | Expanded perlite supported chloride ion curing agent and preparation method and application thereof |
| CN113213806A (en) * | 2021-05-21 | 2021-08-06 | 武汉理工大学 | Delayed permeation type core-shell structure chloride ion curing agent and preparation method thereof |
| CN115893894A (en) * | 2022-11-01 | 2023-04-04 | 桂林理工大学 | Chloride ion curing agent for sea sand concrete and preparation method thereof |
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| CN112125571A (en) * | 2020-09-27 | 2020-12-25 | 武汉理工大学 | Porous ceramic supported chloride ion curing agent and preparation method and application thereof |
| CN112142355A (en) * | 2020-09-27 | 2020-12-29 | 武汉理工大学 | Expanded perlite supported chloride ion curing agent and preparation method and application thereof |
| CN113213806A (en) * | 2021-05-21 | 2021-08-06 | 武汉理工大学 | Delayed permeation type core-shell structure chloride ion curing agent and preparation method thereof |
| CN115893894A (en) * | 2022-11-01 | 2023-04-04 | 桂林理工大学 | Chloride ion curing agent for sea sand concrete and preparation method thereof |
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