CN106747050A - 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
- CN106747050A CN106747050A CN201611031337.4A CN201611031337A CN106747050A CN 106747050 A CN106747050 A CN 106747050A CN 201611031337 A CN201611031337 A CN 201611031337A CN 106747050 A CN106747050 A CN 106747050A
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- CN
- China
- Prior art keywords
- flocculant
- coagulant
- concrete
- leakproof cream
- binding agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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, binding agent and expansion component, water, and by mass percentage, the consumption of each raw material is：Cement 10~20%, coagulant 2~5%, flocculant 3~8%, binding agent 20~25%, expansion component 45~60%, water 5~15%.The concrete leakproof cream can be as the application of the encapsulant of concrete impermeability test, it can also be used to which leakage preventing structure is repaired in crack in engineering, and the impervious effect of sealing is good, and stable performance can fully 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 building material field.
Background technology
Impermeability test is mainly for detection of the water resistance after concrete hardening determining its anti-penetration grade.At present, GB
GB50082-2009《Normal concrete long-term behaviour and endurance quality method standard》Described in concrete impermeability experiment institute
The encapsulant of use is generally mixed butter and is mixed thoroughly using cement, also can mix a small amount of rosin using paraffin.Wherein encapsulant
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 well mixed, and will be melted
Paraffin rosin mixture be uniformly applied on the impervious test block conical surface, treat temperature be down to room temperature paraffin rosin mixture solidification
Afterwards, will be stand-by in test block press-in die trial by forcing press；Using the encapsulating method, junction can be reduced by way of extruding
Crack, but paraffin cannot be bonded well with mould, there is the interval crack between mould and encapsulant.Huang is mixed according to cement
Oil as encapsulant when, although need not heat, after roller coating on the impervious test block conical surface, it is to be solidified after by test block be pressed into die trial in
It is stand-by；But encapsulant no adhesion prepared by this kind of method, only serves filling sealing function, it is understood that there may be the company not being filled
Seam.The encapsulant and its encapsulating method for mainly using for concrete impermeability test above have some limitations, close
Envelope effect on driving birds is not good, seepage at sealing easily occur causes the situation of impermeability test failure, and impermeability test data reliability is not
Enough height.
At present, impermeability test is mainly using the encapsulating method advised in standard GB50082-2009, although mentioned in standard
Can by the way of more reliable, but due to testing standard instruct influence, currently also without further improve encapsulant and
Encapsulating method, still carries out impermeability test using the encapsulating method clearly illustrated in standard.
The content of the invention
The technical problems to be solved by the invention are directed to the deficiency of above-mentioned prior art presence and provide a kind of concrete
Leakproof cream, the impervious effect of sealing is good, and stable performance can fully meet seepage resistance demand.
The present invention is to solve the problems, such as that used technical scheme set forth above is：
A kind of concrete leakproof cream, primary raw material includes cement, coagulant, flocculant, binding agent and expansion component, water,
By mass percentage, the consumption of each raw material is：Cement 10~20%, coagulant 2~5%, flocculant 3~8%, binding agent 20~
25%, expansion component 45~60%, water 5~15%.
By such scheme, described cement is in the conventional cement such as Portland cement, complex cement or white cement
Any one.
By such scheme, described 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 has 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..For the solidification for promoting cement selects two
Plant and several coagulant improve its collaboration efficiency, mass percent of one of which coagulant is no more than coagulant total amount
70%.
By such scheme, described flocculant selects anionic flocculant, such as Sodium Polyacrylate, hydrolysis polyacrylamide
One kind in amine, algin sodium etc., or select flocculant in non-ion type, such as polyoxyethylene, causticity starch, polyacrylamide
One kind in.The consumption of flocculant is in terms of its active ingredient.
By such scheme, described binding agent is epoxy resin；Its epoxide number is 0.25~0.50.
By such scheme, the expansion component mainly includes bentonite, lime and/or magnesia.Preferably, bentonite is accounted for
The 93%~97% of expansion component.Wherein, bentonite can select sodium bentonite and/or calcium-base bentonite.Lime stone and oxygen
Change magnesium and be the pure AR of analysis, active ingredient is all higher than 98%.
The preparation method of above-mentioned concrete leakproof cream, key step is as follows：
1) each raw material more than inciting somebody to action is pressed after stoichiometry, standby；
2) in cement and coagulant being added into binding agent at normal temperatures, it is stirred until homogeneous and is scattered in binding agent, is mixed
Compound；Flocculant is soluble in water, obtain flocculant solution；
3) by swelling agent and step 2) gained mixture, flocculant solution be well mixed, that is, obtain concrete leakproof cream.
By such scheme, the step 2) in stirring time be 3~5min.
By such scheme, the step 3) in mixing mode for shearing.Preferably, shear time is 5~10min.
Above-mentioned concrete leakproof cream as the encapsulant of concrete impermeability test application.Its application process is：Anti-
Ooze test block carry out testing inspection prepare after, the concrete leakproof cream is evenly coated in the impervious test block conical surface, impervious inspection is filled in immediately
Material is overflowed in test mould, cleaning；Then 20~30min is placed in 25~35 DEG C of baking ovens, room temperature is cooled to, you can carry out impervious examination
Test.
Leakage preventing structure is repaired in crack during above-mentioned concrete leakproof cream can also be used for engineering.
Compared with prior art, what the present invention was obtained has the beneficial effect that：
1st, concrete leakproof cream stable performance of the present invention, works well, and can fully meet seepage resistance demand.
2nd, concrete leakproof cream of the present invention is smeared can seal be connected effective with the seam of die trial of test block, pass through
Cross 72h leakage tests and verify tightness up to more than 90%, part tightness can fully meet impermeability test up to more than 95%
It is required that.
3rd, concrete leakproof cream of the present invention overcomes conventional sealing material due to malformation, and junction occurs micro-
The possibility for causing encapsulant to fail during crack.Wherein, the effect of cement and epoxy resin of binder in coagulant and curing agent
Under, the fabulous fine and close material with certain elasticity of toughness can be formed, coagulant Main Function is deceleration cement setting control paste
The shaping time of thing, flocculant primarily serves the effect for increasing viscosity and cured epoxy resin, and the sample of preparation can be effective
Attachment treatment surface；Expansion component is filled primarily with gap and in process of the test, when there is infiltration, the leakproof paste tool of hardening
Have and meet the characteristic that water produces microdilatancy, filling up microcrack makes connecting sewing more closely knit so as to reduce infiltration possibility.
4th, concrete leakproof cream of the present invention is prepared simply, can prepare finished product by mixing at normal temperatures,
Also, stable performance, application method is easy, can greatly improve the success rate of impermeability test and the reliability of test data, drop
It is low to cause the risk of impermeability test failure due to sealing problem.
5th, leakage preventing structure is repaired in crack during concrete leakproof cream of the present invention can also be used for engineering.
Specific embodiment
For a better understanding of the present invention, it is with reference to the embodiment content that the present invention is furture elucidated but of the invention
Content is not limited solely to the following examples.
Embodiment 1~6
A kind of concrete leakproof cream, including cement, coagulant, flocculant and binding agent, swelling agent and water, each raw material press matter
Measuring percentage is：Cement 10~15%, coagulant 2~4%, flocculant 3.5~6%, binding agent 20~25%, expansion component 45
~60%, water 5~13%.Table 1 is the proportioning of the composition of concrete leakproof cream and each component described in the embodiment of the present invention 1~6, its
In, each group is divided into mass percent.
Table 1
The preparation method of above-mentioned concrete leakproof cream, key step is as follows：
1) matched as described in table 1, it is standby by more than after each raw material metering；
2) in the cement and coagulant in adhesive component being added into binding agent at normal temperatures, 3~5min of stirring is until powder
Material is all dispersed in binding agent, obtains mixture；Flocculant in adhesive component is completely soluble in water, obtain flocculant
Solution；
3) by swelling agent and step 2) gained mixture, flocculant solution mix and dispersed 5 in high-speed shearing machine
~10min, that is, obtain concrete leakproof cream.
Above-mentioned concrete leakproof cream as the encapsulant of concrete impermeability test application.Its application process is：Anti-
Ooze test block carry out testing inspection prepare after, the concrete leakproof cream is evenly coated in the impervious test block conical surface, impervious inspection is filled in immediately
Material is overflowed in test mould, cleaning；Then 20~30min is placed in 30 DEG C of baking ovens, impermeability test is carried out by being cooled to room temperature.
For implementation result of the invention is better described, prior paraffin rosin sealant (paraffin and rosin quality ratio are used
It is 95:5), carry out impermeability test and organize 1 as a comparison；Using cement plus grease seal, cement is (2.6 with the mass ratio of butter:
1), carry out impermeability test and organize 2 as a comparison.Product of the present invention is also used for impermeability test as embodiment group, so as to be contrasted,
Sealing effectiveness is shown in Table 2.Wherein, sealing effectiveness opinion rating is divided into A, B, C, D level Four；A grades is 60 examinations in 10 processs of the test
Occurs the situation of seepage after block encapsulation process within 5%, B grades is appearance after 60 test block encapsulation process in 10 processs of the test
Within 10%, C grades exists the situation of seepage for the situation for seepage occur after 60 test block encapsulation process in 10 processs of the test
Within 20%, D grades is the situation of seepage occur after 60 test block encapsulation process in 10 processs of the test within 40%.
Table 2
As shown in Table 2, concrete leakproof cream of the present invention as concrete impermeability test encapsulant application when, property
Energy stablizing effect is good, and tightness is verified up to more than 90% by 72h leakage tests, and part tightness is complete up to more than 95%
The requirement of impermeability test all can be met.It follows that concrete leakproof cream stable performance of the present invention, 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, enables this area professional technique testing crew to realize 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 the person of ordinary skill of the art, before the invention design is not departed from
Put, some modifications and variations can also be made, these belong to protection scope of the present invention.
Claims (10)
1. a kind of concrete leakproof cream, it is characterised in that its primary raw material include cement, coagulant, flocculant, binding agent and
Expansion component, water, by mass percentage, the consumption of each raw material is：Cement 10~20%, coagulant 2~5%, flocculant 3~
8%, binding agent 20~25%, expansion component 45~60%, water 5~15%.
2. a kind of concrete leakproof cream according to claim 1, it is characterised in that described coagulant selects inorganic villaumite
Two or more in class, Sulfates, organic amine, silicates or aluminate class.
3. a kind of concrete leakproof cream according to claim 2, it is characterised in that every kind of coagulant in described coagulant
Mass percent no more than coagulant total amount 70%.
4. a kind of concrete leakproof cream according to claim 1, it is characterised in that described flocculant selects anionic
Flocculant selects flocculant in non-ion type.
5. a kind of concrete leakproof cream according to claim 4, it is characterised in that described anionic flocculant is poly-
One kind in PAA, hydrolyzed polyacrylamide, algin sodium；Flocculant in non-ion type be polyoxyethylene, causticity starch,
One kind in polyacrylamide.
6. a kind of concrete leakproof cream according to claim 1, it is characterised in that described binding agent is epoxy resin, its
Epoxide number is 0.25~0.50.
7. a kind of concrete leakproof cream according to claim 1, it is characterised in that the expansion component mainly includes swelling
Soil, lime and/or magnesia；Wherein, the bentonite accounts for the 93%~97% of expansion component.
8. a kind of preparation method of concrete leakproof cream, it is characterised in that its key step is as follows：
1) primary raw material includes cement, coagulant, flocculant, binding agent and expansion component, water, by mass percentage, each raw material
Consumption be：Cement 10~20%, coagulant 2~5%, flocculant 3~8%, binding agent 20~25%, expansion component 45~
60%, water 5~15%；Each raw material more than inciting somebody to action is pressed after stoichiometry, standby；
2) in cement and coagulant being added into binding agent at normal temperatures, it is stirred until homogeneous and is scattered in binding agent, obtains mixture；
Flocculant is soluble in water, obtain flocculant solution；
3) by swelling agent and step 2) gained mixture, flocculant solution be well mixed, that is, obtain concrete leakproof cream.
9. the concrete leakproof cream described in claim 1 as the encapsulant of concrete impermeability test application.
10. the concrete leakproof cream described in claim 1 is used for the application that leakage preventing structure is repaired in crack in engineering.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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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| Publication Number | Publication Date |
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| CN106747050A true CN106747050A (en) | 2017-05-31 |
| CN106747050B CN106747050B (en) | 2019-08-23 |
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| CN201611031337.4A Active CN106747050B (en) | 2016-11-18 | 2016-11-18 | A kind of concrete leakproof cream and preparation method thereof, application |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110386787A (en) * | 2019-08-01 | 2019-10-29 | 中建西部建设湖南有限公司 | A kind of cement base 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 |
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| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110386787A (en) * | 2019-08-01 | 2019-10-29 | 中建西部建设湖南有限公司 | A kind of cement base self repairing agent and preparation method thereof |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN106747050B (en) | 2019-08-23 |
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