CN106747050B - A kind of concrete leakproof cream and preparation method thereof, application - Google Patents
A kind of concrete leakproof cream and preparation method thereof, application Download PDFInfo
- Publication number
- CN106747050B CN106747050B CN201611031337.4A CN201611031337A CN106747050B CN 106747050 B CN106747050 B CN 106747050B CN 201611031337 A CN201611031337 A CN 201611031337A CN 106747050 B CN106747050 B CN 106747050B
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- Prior art keywords
- flocculant
- coagulant
- concrete
- binder
- cement
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Classifications
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
- C04B2111/00672—Pointing or jointing materials
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/72—Repairing or restoring existing buildings or building materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of concrete leakproof cream, its primary raw material includes cement, coagulant, flocculant, binder and expansion component, water, by mass percentage, the dosage of each raw material are as follows: cement 10~20%, coagulant 2~5%, flocculant 3~8%, binder 20~25%, expansion component 45~60%, water 5~15%.The concrete leakproof cream can be used as the application of the sealing material of concrete impermeability test, it can also be used to which leakage preventing structure is repaired in crack in engineering, and it is good to seal impervious effect, and performance is stablized, and can sufficiently meet seepage resistance demand.
Description
Technical field
The present invention relates to a kind of concrete leakproof cream and preparation method thereof, application, belong to the field of building materials.
Background technique
Impermeability test is mainly for detection of the waterproof performance after concrete hardening to measure its anti-penetration grade.Currently, national standard
Description concrete impermeability tests institute in GB50082-2009 " normal concrete long-term behaviour and endurance quality method standard "
The sealing material of use, which is generallyd use, to be mixed butter using cement and mixes thoroughly, and paraffin can also be used and mix a small amount of rosin.Wherein sealing material
The most universal using paraffin wax and rosin, encapsulating method is to heat paraffin in 60 DEG C of baking ovens with rosin to be uniformly mixed, and will be melted
Paraffin rosin mixture be uniformly applied on the impervious test block conical surface, to temperature be down to room temperature paraffin rosin mixture solidification
Afterwards, test block is pressed by press machine stand-by in die trial；Using the encapsulating method, junction can be reduced by way of extruding
Crack, but paraffin can not be bonded well with mold, and there are the interval cracks between mold and sealing material.Huang is mixed according to cement
When oil is used as sealing material, although need not heat, after roller coating on the impervious test block conical surface, test block is pressed into die trial after to be solidified
For use；But the sealing material no adhesion of such method preparation, only serves filling sealing function, it is understood that there may be the company not being filled
Seam.The sealing material and its encapsulating method mainly used the above are concrete impermeability test has some limitations, close
It seals ineffective, the case where leakage causes impermeability test to fail easily occurs at sealing, and impermeability test data reliability is not
Enough height.
Currently, impermeability test mainly uses the encapsulating method suggested in standard GB50082-2009, although mentioning in standard
Can be used more reliable mode, but due to the influence of testing standard guidance, it is current be further improved not yet sealing material and
Encapsulating method still carries out impermeability test using the encapsulating method explicitly illustrated in standard.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of concrete in view of the deficiency of the prior art
Leakproof cream, it is good to seal impervious effect, and performance is stablized, and can sufficiently meet seepage resistance demand.
The present invention be solve the problems, such as it is set forth above used by technical solution are as follows:
A kind of concrete leakproof cream, primary raw material include cement, coagulant, flocculant, binder and expansion component, water,
By mass percentage, the dosage of each raw material are as follows: cement 10~20%, coagulant 2~5%, flocculant 3~8%, binder 20~
25%, expansion component 45~60%, water 5~15%.
According to the above scheme, the cement is in the common cement such as ordinary portland cement, complex cement or white cement
Any one.
According to the above scheme, the coagulant selects inorganic chloride salt, mineral sulfates class, organic amine, inorganic silicic acid
Two or more in salt or inorganic aluminate class etc..Wherein, inorganic chloride salt mainly has sodium chloride, calcium chloride etc.；It is inorganic
Sulfates mainly have sodium sulphate, calcium sulfate etc.；Organic amine mainly has triethanolamine, diethanol amine etc.；Inorganic silicic acid salt
Mainly there are sodium metasilicate, lithium metasilicate etc.；Inorganic aluminate class mainly has sodium aluminate, calcium aluminate etc..To promote the solidification of cement to select two
Kind and several coagulant improve its and cooperate with efficiency, and the mass percent of one of coagulant is no more than coagulant total amount
70%.
According to the above scheme, the flocculant selects anionic flocculant, such as Sodium Polyacrylate, hydrolysis polyacrylamide
One of amine, algin sodium etc., or flocculant in non-ion type is selected, such as polyoxyethylene, causticity starch, polyacrylamide
One of Deng.The dosage of flocculant is in terms of its effective component.
According to the above scheme, the binder is epoxy resin；Its epoxide number is 0.25~0.50.
According to the above scheme, the expansion component mainly includes bentonite, lime and/or magnesia.Preferably, bentonite accounts for
The 93%~97% of expansion component.Wherein, bentonite can select sodium bentonite and/or calcium-base bentonite.Lime stone and oxygen
Changing magnesium is the pure AR of analysis, and effective component is all larger than 98%.
The preparation method of above-mentioned concrete leakproof cream, key step are as follows:
1) spare after measuring above each raw material according to the ratio；
2) cement and coagulant are added at normal temperature in binder, are stirred until homogeneous and are scattered in binder, mixed
Close object；Flocculant is soluble in water, obtain flocculant solution；
3) swelling agent is uniformly mixed with mixture obtained by step 2), flocculant solution to get concrete leakproof cream is arrived.
According to the above scheme, the time stirred in the step 2) is 3~5min.
According to the above scheme, the mode mixed in the step 3) is shearing.Preferably, shear time is 5~10min.
The application of sealing material of the above-mentioned concrete leakproof cream as concrete impermeability test.Its application method are as follows: anti-
After testing inspection preparation is carried out in infiltration test block, which is evenly coated in the impervious test block conical surface, fills in impervious inspection immediately
Mould is tested, material is overflowed in cleaning；Then 20~30min is placed in 25~35 DEG C of baking ovens, is cooled to room temperature, can be carried out impervious examination
It tests.
Above-mentioned concrete leakproof cream can also be used for crack in engineering and repair leakage preventing structure.
Compared with prior art, what the present invention obtained has the beneficial effect that
1, concrete leakproof cream performance of the present invention is stablized, and works well, can sufficiently meet seepage resistance demand.
2, concrete leakproof cream smearing of the present invention, which can effectively connect the seam of test block and die trial, seals, and passes through
72h leakage test verifying tightness is crossed up to 90% or more, part tightness can sufficiently meet impermeability test up to 95% or more
It is required that.
3, concrete leakproof cream of the present invention overcomes conventional sealing material due to malformation, and junction occurs micro-
The possibility for causing sealing material to fail when crack.Wherein, the effect of cement and epoxy resin of binder in coagulant and curing agent
Under, the fabulous fine and close substance with certain elasticity of toughness can be formed, coagulant main function is deceleration cement setting control paste
The setting time of object, flocculant primarily serve the effect for increasing viscosity and cured epoxy resin, and the sample of preparation can be effective
Attachment processing surface；Expansion component is filled primarily with gap and during the test, and when seeping water, the leakproof paste of hardening has
Have and meet the characteristic that water generates microdilatancy, filling up microcrack keeps connecting sewing more closely knit to reduce infiltration possibility.
4, concrete leakproof cream preparation of the present invention is simple, can prepare finished product by being mixed at normal temperature,
Also, performance is stablized, and application method is easy, can greatly improve the success rate of impermeability test and the reliability of test data, drops
The low risk for leading to impermeability test failure due to sealing problem.
5, concrete leakproof cream of the present invention can also be used for crack in engineering and repair leakage preventing structure.
Specific embodiment
For a better understanding of the present invention, below with reference to the embodiment content that the present invention is furture elucidated, but it is of the invention
Content is not limited solely to the following examples.
Examples 1 to 6
A kind of concrete leakproof cream, including cement, coagulant, flocculant and binder, swelling agent and water, each raw material press matter
Measure percentage are as follows: cement 10~15%, coagulant 2~4%, flocculant 3.5~6%, binder 20~25%, expansion component 45
~60%, water 5~13%.Table 1 be the concrete leakproof cream of the embodiment of the present invention 1~6 composition and each component proportion,
In, each group is divided into mass percent.
Table 1
The preparation method of above-mentioned concrete leakproof cream, key step are as follows:
1) it is matched by described in table 1, it is spare after above each raw material metering；
2) by adhesive component cement and coagulant be added in binder at normal temperature, 3~5min is until powder for stirring
Material is all dispersed in binder, obtains mixture；Flocculant in adhesive component is completely soluble in water, obtain flocculant
Solution；
3) mixture obtained by swelling agent and step 2), flocculant solution are mixed and evenly dispersed 5 in high-speed shearing machine
~10min to get arrive concrete leakproof cream.
The application of sealing material of the above-mentioned concrete leakproof cream as concrete impermeability test.Its application method are as follows: anti-
After testing inspection preparation is carried out in infiltration test block, which is evenly coated in the impervious test block conical surface, fills in impervious inspection immediately
Mould is tested, material is overflowed in cleaning；Then 20~30min is placed in 30 DEG C of baking ovens, impermeability test can be carried out by being cooled to room temperature.
Implementation result in order to better illustrate the present invention uses prior paraffin rosin sealant (paraffin and rosin quality ratio
For 95:5), carries out impermeability test and organize 1 as a comparison；Using cement plus grease seal, the mass ratio of cement and butter be (2.6:
1) it, carries out impermeability test and organizes 2 as a comparison.Product of the present invention is also used for impermeability test as embodiment group, thus compare,
Sealing effect is shown in Table 2.Wherein, sealing effect opinion rating is divided into A, B, C, D level Four；A grades are 60 examinations during 10 tests
The case where leaking after block encapsulation process is within 5%, and B grades is occur after 60 test block encapsulation process during 10 tests
The case where leakage within 10%, C grades to be leaked after 60 test block encapsulation process during 10 tests the case where
Within 20%, D grades to be leaked after 60 test block encapsulation process during 10 tests the case where within 40%.
Table 2
As shown in Table 2, concrete leakproof cream of the present invention is as the sealing material of concrete impermeability test in application, property
Energy stablizing effect is good, and by 72h leakage test verifying tightness up to 90% or more, part tightness is complete up to 95% or more
The requirement of impermeability test all can be met.It follows that concrete leakproof cream performance of the present invention is stablized, works well, can fill
Divide and meet seepage resistance demand, it can also be used to which leakage preventing structure is repaired in crack in engineering.
The foregoing description of the disclosed embodiments makes this field professional technique testing crew can be realized the present invention,
Other embodiment can be made without departing from the spirit or scope of the present invention.The above is only of the invention
Preferred embodiment, it is noted that for those of ordinary skill in the art, before not departing from the invention design
It puts, several modifications and variations can also be made, these are all within the scope of protection of the present invention.
Claims (6)
1. a kind of concrete leakproof cream, it is characterised in that its primary raw material include cement, coagulant, flocculant, binder and
Expansion component, water, by mass percentage, the dosage of each raw material are as follows: cement 10 ~ 20%, coagulant 2 ~ 5%, flocculant 3 ~ 8%, bonding
Agent 20 ~ 25%, expansion component 45 ~ 60%, water 5 ~ 15%；
Wherein, the expansion component mainly includes bentonite, lime and/or magnesia；Wherein, the bentonite accounts for expansion component
93% ~ 97%；The coagulant is selected in inorganic chloride salt, Sulfates, organic amine, silicates or aluminate class
Two or more；The mass percent of every kind of coagulant is no more than the 70% of coagulant total amount in the coagulant；It is described
Binder be epoxy resin, epoxide number be 0.25 ~ 0.50.
2. a kind of concrete leakproof cream according to claim 1, it is characterised in that the flocculant selects anionic
Flocculant selects flocculant in non-ion type.
3. a kind of concrete leakproof cream according to claim 2, it is characterised in that the anionic flocculant is poly-
One of sodium acrylate, hydrolyzed polyacrylamide, algin sodium；Flocculant in non-ion type be polyoxyethylene, causticity starch,
One of polyacrylamide.
4. a kind of preparation method of concrete leakproof cream described in claim 1, it is characterised in that its key step is as follows:
1) primary raw material includes cement, coagulant, flocculant, binder and expansion component, water, by mass percentage, each raw material
Dosage are as follows: cement 10 ~ 20%, coagulant 2 ~ 5%, flocculant 3 ~ 8%, binder 20 ~ 25%, expansion component 45 ~ 60%, water 5 ~
15%；It is spare after above each raw material is measured according to the ratio；
2) cement and coagulant are added at normal temperature in binder, are stirred until homogeneous and are scattered in binder, obtain mixture；
Flocculant is soluble in water, obtain flocculant solution；
3) expansion component is uniformly mixed with mixture obtained by step 2, flocculant solution to get concrete leakproof cream is arrived.
5. the application of sealing material of the concrete leakproof cream described in claim 1 as concrete impermeability test.
6. the application that concrete leakproof cream described in claim 1 repairs leakage preventing structure for crack in engineering.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611031337.4A CN106747050B (en) | 2016-11-18 | 2016-11-18 | A kind of concrete leakproof cream and preparation method thereof, application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611031337.4A CN106747050B (en) | 2016-11-18 | 2016-11-18 | A kind of concrete leakproof cream and preparation method thereof, application |
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| CN106747050A CN106747050A (en) | 2017-05-31 |
| CN106747050B true CN106747050B (en) | 2019-08-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110386787B (en) * | 2019-08-01 | 2021-10-08 | 中建西部建设湖南有限公司 | Cement-based self-repairing agent and preparation method thereof |
| CN114197908A (en) * | 2020-09-18 | 2022-03-18 | 贵州省烟草公司遵义市公司汇川分公司 | Leakage-proof treatment method for roof of curing barn |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434093A (en) * | 2003-01-28 | 2003-08-06 | 刘玉军 | Quick leakage-stopping agent |
| CN101698589A (en) * | 2009-11-06 | 2010-04-28 | 同济大学 | Novel patching material |
| CN101767970A (en) * | 2010-01-15 | 2010-07-07 | 中国建筑材料科学研究总院 | Auto-waterproof bridging particle |
| CN102001852A (en) * | 2010-09-21 | 2011-04-06 | 广东龙湖科技有限公司 | Semiflexible rapid leakstopping mortar with high impermeability |
-
2016
- 2016-11-18 CN CN201611031337.4A patent/CN106747050B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434093A (en) * | 2003-01-28 | 2003-08-06 | 刘玉军 | Quick leakage-stopping agent |
| CN101698589A (en) * | 2009-11-06 | 2010-04-28 | 同济大学 | Novel patching material |
| CN101767970A (en) * | 2010-01-15 | 2010-07-07 | 中国建筑材料科学研究总院 | Auto-waterproof bridging particle |
| CN102001852A (en) * | 2010-09-21 | 2011-04-06 | 广东龙湖科技有限公司 | Semiflexible rapid leakstopping mortar with high impermeability |
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