CN106186774A - A kind of concrete impervious additive of self-cure type, preparation method and using method - Google Patents
A kind of concrete impervious additive of self-cure type, preparation method and using method Download PDFInfo
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- CN106186774A CN106186774A CN201610547144.8A CN201610547144A CN106186774A CN 106186774 A CN106186774 A CN 106186774A CN 201610547144 A CN201610547144 A CN 201610547144A CN 106186774 A CN106186774 A CN 106186774A
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- Prior art keywords
- concrete
- oxide
- self
- powder
- cure type
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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
- C04B40/0042—Powdery mixtures
-
- 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
- C04B2103/65—Water proofers or repellants
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of concrete impervious additive of self-cure type, preparation method and using method, the powder mixture including being made up of: the sodium oxide of the potassium oxide of the magnesium oxide of the calcium oxide of the iron sesquioxide of the silicon dioxide of aluminium sesquioxide, 70%～76%, 2%～4%, 0.5%～2.0%, 0%～5.0%, 2%～5%, 0.5%～4% of 10%～15% and the titanium dioxide of 0.2%～0.6% material of following masses number；This repellant is used in mixed way with concrete material, it is possible to micropore between cement and sand granule in fill concrete, improves concrete body impervious；When there being water seepage, calcareous in concrete is dissolved, and is formed as Ca (OH) 2 solution with water and separates out from concrete, forms CaSiO3 with the active SiO2 generation chemical reaction that oozes in vertical health and crystallize, leakage passage such as blocking hole, crack etc., reaches antiseepage purpose.
Description
Technical field
The present invention relates to concrete anti-seepage technical field, particularly relate to a kind of concrete impervious additive and this impervious outside
Add preparation method and the using method of agent.
Background technology
Concrete is a kind of pore media material, and when xoncrete structure has dash requirement, i.e. one side near water and exists water
During pressure, water can form seepage by the hole in concrete through xoncrete structure.Concrete can be affected when water leakage is big
The use function of structure, such as concrete guard wall, the leaking of concrete dam, seeps water, building basement leaking, and refuse landfill is polluted
Beyond the region of objective existence oozes, and affects the normal use of engineering.What seepage can be taken away in concrete simultaneously is calcareous, and concrete can be made in the course of time to become
Obtain more and more loose, make intensity reduce, affect concrete safety and durability.
The reason that in concrete, penetrating passage is formed has four kinds:
1, the mixture of concrete is formed without intensive accumulation in mixing and stirring hardening process, does not has between particle diameters the most at different levels
Forming good filling, the most tiny pore filling is inadequate；
2, in the hydration process of cement, water is become crystallization by aquation to other chemical composition, the space being originally occupied by the water
Become hole；
3, the thin microcrack seeing aspect generation in hydration process；
4, due to impact generations such as temperature action, autogenous shrinkage, structure stress, deformation constraints in course of hardening
Macrocrack.
These holes, crackle, crack together constitute the leakage passage of water, cause the percolating water of concrete.
Summary of the invention
First technical problem to be solved by this invention is to provide one and enables to concrete and have crack self-healing
The concrete impervious additive of self-cure type of energy.
For solving above-mentioned technical problem, the technical scheme is that a kind of concrete impervious additive of self-cure type, including
The powder mixture being made up of the material of following masses number:
The iron sesquioxide of the silicon dioxide of aluminium sesquioxide, 70%～76%, 2%～4% of 10%～15%,
The sodium oxide of the potassium oxide of the magnesium oxide of calcium oxide, 0%～5.0%, 2%～5%, 0.5%～4% of 0.5%～2.0% and
The titanium dioxide of 0.2%～0.6%.
As the preferred technical scheme of one, the fineness of the particles of described mixture is 300-600 mesh.
Owing to have employed technique scheme, a kind of concrete impervious additive of self-cure type, including by following masses number
Material composition powder mixture: the silicon dioxide of aluminium sesquioxide, 70%～76%, 2%～4% of 10%～15%
The potassium oxide of the magnesium oxide of the calcium oxide of iron sesquioxide, 0.5%～2.0%, 0%～5.0%, 2%～5%, 0.5%～
The sodium oxide of 4% and the titanium dioxide of 0.2%～0.6%；This repellant is used in mixed way with concrete material, it is possible to fill
Micropore between cement and sand granule in concrete, improves concrete body impervious；When there being water seepage, in concrete
Calcareous be dissolved, be formed as Ca (OH) with water2Solution separates out from concrete, with the active SiO oozed in vertical health2There is chemistry
Reaction forms CaSiO3Crystallization, leakage passage such as blocking hole, crack etc., reach antiseepage purpose.
Second technical problem to be solved by this invention is to provide the preparation of the concrete impervious additive of a kind of self-cure type
Method.
For solving above-mentioned technical problem, the technical scheme is that prepared by a kind of concrete impervious additive of self-cure type
Method, comprises the steps:
The natural active siliceous building stones of height are milled down to quite or slightly thin with cement fineness, obtain stone by step one
Material powder；
Step 2, according to the content of silicon dioxide in building stones, takes the building stones powder containing 70～76 parts of silicon dioxide, Xiang Shi
Material powder adds the following substances of powder: the aluminium sesquioxide of 10～15 parts, the iron sesquioxide of 2～4 parts, 0.5～2.0
Calcium oxide, the magnesium oxide of 0～5.0 part, the potassium oxide of 2～5 parts, the sodium oxide of 0.5～4 part and the dioxy of 0.2～0.6 part of part
Change titanium；
Step 3, by the mixture mix homogeneously in step 2.
As the preferred technical scheme of one, the fineness of the particles of described SiO 2 powder is 300-600 mesh.
As the preferred technical scheme of one, the described aluminium sesquioxide of powder, iron sesquioxide, calcium oxide, oxidation
The fineness of the particles of magnesium, potassium oxide, sodium oxide and titanium dioxide is 300-600 mesh.
Owing to have employed technique scheme, a kind of self-cure type concrete impervious additive preparation method, utilize the method,
Chemical composition can be prepared close with cement, easily affine with cement, sand etc. repellant, prepared repellant with mix
Solidifying soil material is used in mixed way, it is possible to micropore between cement and sand granule in fill concrete, improves concrete body and resists
Oozing property；When there being water seepage, in concrete calcareous be dissolved, be formed as Ca (OH) 2 solution with water and separate out from concrete, with
Ooze the active SiO2 generation chemical reaction in vertical health and form CaSiO3 crystallization, leakage passage such as blocking hole, crack etc., reach antiseepage
Purpose.
3rd technical problem to be solved by this invention is to provide the use of the concrete impervious additive of a kind of self-cure type
Method.
For solving above-mentioned technical problem, the technical scheme is that a kind of concrete impervious additive of self-cure type uses
Method, repellant includes the powder mixture being made up of the material of following masses number:
The iron sesquioxide of the silicon dioxide of aluminium sesquioxide, 70%～76%, 2%～4% of 10%～15%,
The sodium oxide of the potassium oxide of the magnesium oxide of calcium oxide, 0%～5.0%, 2%～5%, 0.5%～4% of 0.5%～2.0% and
The titanium dioxide of 0.2%～0.6%；
Comprise the steps:
Step one: by above-mentioned powder mixture and concrete gel material according to 3:(35-65) ratio joins mix
In building or mix tank, mix is uniform；
Step 2, the repellant of 15% 20% participates in reaction during mixing and stirring hardening, remaining impervious outside
Add agent and have neither part nor lot in reaction；
Step 3, after concrete structure crack occurs and runs into water, the calcium separated out in concrete and water react formation Ca
(OH) 2, Ca (OH) 2 generates CaSiO3 crystal with the silicon dioxde reaction in repellant, and crack is filled by CaSiO3 crystal,
Realize spontaneous recovery.
Owing to have employed technique scheme, a kind of self-cure type concrete impervious additive using method, above-mentioned user
Method ensure that xoncrete structure after curing, is internally formed intensive accumulation, forms good filling between particle diameters the most at different levels,
Even tiny hole also is able to fill consolidation, improve the intensity of xoncrete structure, in the case of repellant is unspent,
Xoncrete structure is respectively provided with the ability of crack self-healing.
Detailed description of the invention
Face in conjunction with the embodiments, is expanded on further the present invention.In the following detailed description, only describe by the way of explanation
Some one exemplary embodiment of the present invention.Undoubtedly, those of ordinary skill in the art will be consequently realised that, without departing from this
In the case of the spirit and scope of invention, by various different modes, described embodiment can be modified.Therefore, retouch
State the most illustrative rather than for limiting scope of the claims.
A kind of concrete impervious additive of self-cure type, including the powder-mixed being made up of the material of following masses number
Thing:
The iron sesquioxide of the silicon dioxide of aluminium sesquioxide, 70%～76%, 2%～4% of 10%～15%,
The sodium oxide of the potassium oxide of the magnesium oxide of calcium oxide, 0%～5.0%, 2%～5%, 0.5%～4% of 0.5%～2.0% and
The titanium dioxide of 0.2%～0.6%.
The fineness of the particles of described mixture is 300-600 mesh.
This repellant joins when concrete mixes and stirs in concrete, plays two effects:
1) hole filled between sand and cement granules improves impermeability；
2) when micro-cracks produce, and have water enter after, can react with the precipitate in concrete, formed crystallization,
Blocking leakage passage.
This repellant is used in mixed way with concrete material, it is possible to thin between cement and sand granule in fill concrete
Micropore, improves concrete body impervious；When there being water seepage, in concrete calcareous be dissolved, be formed as Ca with water
(OH)2Solution separates out from concrete, with the active SiO oozed in vertical health2Chemical reaction is occurred to form CaSiO3Crystallization, plugging hole
The leakage passage such as gap, crack, reaches antiseepage purpose.Chemical equation is: SiO2+Ca(OH)2=CaSiO3(colloid)+
H2O。
Repellant of the present invention has an advantage:
1, chemical composition is close with cement, the most affine with cement, sand etc., will not bring adverse effect；
2, construction is simple, is joined by a certain amount of repellant in mixing building or mix tank, with water together with cement
Mud, sand, aggregate etc. mix and stir together, are not required to additionally increase the measure of mixing and stirring；
3, self does not possess chemical reactivity, and the Ca (OH) 2 that its activity needs concrete to separate out activates；
4, self does not contains the heat of hydration, will not increase the caloric value of concrete after interpolation；
5, effective.It is demonstrated experimentally that concrete impervious ability is greatly improved after interpolation repellant, impermeability can carry
High 1-2 seepage-resistant grade；
6, the impervious mass stable performance formed, durability is high.
A kind of self-cure type concrete impervious additive preparation method, comprises the steps:
The natural active siliceous building stones of height are milled down to quite or slightly thin with cement fineness, obtain stone by step one
Material powder；
Step 2, according to the content of silicon dioxide in building stones, takes the building stones powder containing 70～76 parts of silicon dioxide, Xiang Shi
Material powder adds the following substances of powder: the aluminium sesquioxide of 10～15 parts, the iron sesquioxide of 2～4 parts, 0.5～2.0
Calcium oxide, the magnesium oxide of 0～5.0 part, the potassium oxide of 2～5 parts, the sodium oxide of 0.5～4 part and the dioxy of 0.2～0.6 part of part
Change titanium；
Step 3, by the mixture mix homogeneously in step 2.
The fineness of the particles of described building stones powder is 300-600 mesh.The described aluminium sesquioxide of powder, iron sesquioxide,
The fineness of the particles of calcium oxide, magnesium oxide, potassium oxide, sodium oxide and titanium dioxide is 300-600 mesh.
Utilize the method, chemical composition can be prepared close with cement, easily and the affine repellant such as cement, sand,
The repellant prepared is used in mixed way with concrete material, it is possible to fine holes between cement and sand granule in fill concrete
Gap, improves concrete body impervious；When there being water seepage, calcareous in concrete is dissolved, and to be formed as Ca (OH) 2 molten with water
Liquid separates out from concrete, forms CaSiO3 crystallization with the active SiO2 generation chemical reaction oozed in vertical health, blocks hole, crack
Deng leakage passage, reach antiseepage purpose.
When 1, preparing this repellant, reactive silica silicone content is met requirement and there is the building stones mill of enough activity
Thin to 300-600 mesh, add the powder of other active substance several, form repellant additive powder, according to necessarily
Weight pack；
2, packed ooze vertical health should be at indoor storage, it is to avoid drench with rain, make moist；
3, repellant during concrete production adds, and is gelled with cement etc. according to certain ratio by repellant
Material mixing, renders to mixing building together with the aggregate such as sand, stone and mixes and stirs tank, stirring；
4, the volume of repellant, mixing time etc., determine according to experiment.
A kind of self-cure type concrete impervious additive using method, repellant includes by the material of following masses number
The powder mixture of composition:
The iron sesquioxide of the silicon dioxide of aluminium sesquioxide, 70%～76%, 2%～4% of 10%～15%,
The sodium oxide of the potassium oxide of the magnesium oxide of calcium oxide, 0%～5.0%, 2%～5%, 0.5%～4% of 0.5%～2.0% and
The titanium dioxide of 0.2%～0.6%；
Comprise the steps:
Step one: by above-mentioned powder mixture and concrete gel material according to 3:(35-65) ratio joins mix
In building or mix tank, mix is uniform；
Step 2, the repellant of 15% 20% participates in reaction during mixing and stirring hardening, remaining impervious outside
Add agent and have neither part nor lot in reaction；
Step 3, after concrete structure crack occurs and runs into water, the calcium separated out in concrete and water react formation Ca
(OH) 2, Ca (OH) 2 generates CaSiO3 crystal with the silicon dioxde reaction in repellant, and crack is filled by CaSiO3 crystal,
Realize spontaneous recovery.
Above-mentioned using method ensure that xoncrete structure after curing, is internally formed intensive accumulation, particle diameters the most at different levels
Between form good filling, even tiny hole also be able to fill consolidation, improve xoncrete structure intensity, outside impervious
Add agent unspent in the case of, xoncrete structure is respectively provided with the ability of crack self-healing.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (6)
1. the concrete impervious additive of self-cure type, it is characterised in that include the powder being made up of the material of following masses number
Powder mixture:
The iron sesquioxide of the silicon dioxide of aluminium sesquioxide, 70%～76%, 2%～4% of 10%～15%, 0.5%～
The sodium oxide of the potassium oxide of the magnesium oxide of calcium oxide, 0%～5.0%, 2%～5%, 0.5%～4% of 2.0% and 0.2%～
The titanium dioxide of 0.6%.
2. the concrete impervious additive of self-cure type as claimed in claim 1, it is characterised in that: the fineness of the particles of described mixture
For 300-600 mesh.
3. a self-cure type concrete impervious additive preparation method, it is characterised in that comprise the steps:
The natural active siliceous building stones of height are milled down to quite or slightly thin with cement fineness, obtain stone powder by step one
End；
Step 2, according to the content of silicon dioxide in building stones, takes the building stones powder containing 70～76 parts of silicon dioxide, to stone powder
End adds the following substances of powder: the aluminium sesquioxide of 10～15 parts, the iron sesquioxide of 2～4 parts, 0.5～2.0 part
Calcium oxide, the magnesium oxide of 0～5.0 part, the potassium oxide of 2～5 parts, the sodium oxide of 0.5～4 part and the titanium dioxide of 0.2～0.6 part
Titanium；
Step 3, by the mixture mix homogeneously in step 2.
4. self-cure type concrete impervious additive preparation method as claimed in claim 3, it is characterised in that: described building stones powder
Fineness of the particles be 300-600 mesh.
5. self-cure type concrete impervious additive preparation method as claimed in claim 3, it is characterised in that: powder described
The fineness of the particles of aluminium sesquioxide, iron sesquioxide, calcium oxide, magnesium oxide, potassium oxide, sodium oxide and titanium dioxide is 300-
600 mesh.
6. a self-cure type concrete impervious additive using method, it is characterised in that repellant includes by following masses
The powder mixture of the material composition of number:
The iron sesquioxide of the silicon dioxide of aluminium sesquioxide, 70%～76%, 2%～4% of 10%～15%, 0.5%～
The sodium oxide of the potassium oxide of the magnesium oxide of calcium oxide, 0%～5.0%, 2%～5%, 0.5%～4% of 2.0% and 0.2%～
The titanium dioxide of 0.6%；
Comprise the steps:
Step one: by above-mentioned powder mixture and concrete gel material according to 3:(35-65) ratio join mixing building or
In person's mix tank, mix is uniform；
Step 2, the repellant of 15% 20% participates in reaction, remaining repellant during mixing and stirring hardening
Have neither part nor lot in reaction；
Step 3, after concrete structure crack occurs and runs into water, the calcium separated out in concrete and water react formation Ca (OH)2,
Ca(OH)2CaSiO is generated with the silicon dioxde reaction in repellant3Crystal, CaSiO3Crack is filled by crystal, it is achieved from
More.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610547144.8A CN106186774A (en) | 2016-07-12 | 2016-07-12 | A kind of concrete impervious additive of self-cure type, preparation method and using method |
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| CN201610547144.8A CN106186774A (en) | 2016-07-12 | 2016-07-12 | A kind of concrete impervious additive of self-cure type, preparation method and using method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106946523A (en) * | 2017-03-20 | 2017-07-14 | 中交武汉港湾工程设计研究院有限公司 | Fill concrete after a kind of foundation for laid pipe |
| CN107879700A (en) * | 2017-11-14 | 2018-04-06 | 湖州力奥电梯配件有限公司 | A kind of lift car Knapsack-rack bottom girder |
| CN109705852A (en) * | 2018-12-25 | 2019-05-03 | 西安建筑科技大学 | A method of strontium silicate powder body material is prepared using strontium hydroxide and silicon ash |
| CN109734345A (en) * | 2019-03-22 | 2019-05-10 | 安徽信息工程学院 | A kind of penetrant crystalline material and preparation method |
| CN109880449A (en) * | 2018-12-24 | 2019-06-14 | 广州市铁汉春园林景观工程有限公司 | A kind of water-repellent paint and preparation method thereof that permeability is strong |
| CN111410489A (en) * | 2020-04-26 | 2020-07-14 | 上海兆捷实业发展有限公司 | High-strength self-compacting concrete and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106946523A (en) * | 2017-03-20 | 2017-07-14 | 中交武汉港湾工程设计研究院有限公司 | Fill concrete after a kind of foundation for laid pipe |
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| CN109880449A (en) * | 2018-12-24 | 2019-06-14 | 广州市铁汉春园林景观工程有限公司 | A kind of water-repellent paint and preparation method thereof that permeability is strong |
| CN109705852A (en) * | 2018-12-25 | 2019-05-03 | 西安建筑科技大学 | A method of strontium silicate powder body material is prepared using strontium hydroxide and silicon ash |
| CN109705852B (en) * | 2018-12-25 | 2021-11-16 | 西安建筑科技大学 | Method for preparing strontium silicate powder material by utilizing strontium hydroxide and silica fume |
| CN109734345A (en) * | 2019-03-22 | 2019-05-10 | 安徽信息工程学院 | A kind of penetrant crystalline material and preparation method |
| CN111410489A (en) * | 2020-04-26 | 2020-07-14 | 上海兆捷实业发展有限公司 | High-strength self-compacting concrete and preparation method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |