CN102001852A - Semiflexible rapid leakstopping mortar with high impermeability - Google Patents
Semiflexible rapid leakstopping mortar with high impermeability Download PDFInfo
- Publication number
- CN102001852A CN102001852A CN2010102941919A CN201010294191A CN102001852A CN 102001852 A CN102001852 A CN 102001852A CN 2010102941919 A CN2010102941919 A CN 2010102941919A CN 201010294191 A CN201010294191 A CN 201010294191A CN 102001852 A CN102001852 A CN 102001852A
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- China
- Prior art keywords
- mortar
- high permeability
- fast blockage
- half flexible
- permeability resistant
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- 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
-
- 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
- C04B28/06—Aluminous cements
- C04B28/065—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- 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 provides semiflexible rapid leakstopping mortar with high impermeability and certain flexibility, which comprises the following components in percentage by weight: 45-65% of aluminate cement used as a gelled material, 20-40% of mineral filler, 0.5-2% of bentonite used as a waterproofing agent, 2-5% of plaster used as an expanding agent, 0.1-0.5% of coagulant, 0.2-0.5% of water reducing agent, 2-4% of spurrite and 1-2% of redispersible latex power, wherein the coagulant, the water reducing agent, the spurrite and the redispersible latex power are used as auxiliary materials. The leakstopping mortar has the advantages of high setting speed, high strength, no later strength shrinkage, high bonding strength, high impermeability, microdilatancy, high deformation resistance and the like and can be widely applied to leakstopping of concrete structures, such as a water pool, a house, a basement and a tunnel.
Description
Technical field
The present invention relates to a kind of leak stopping mortar, relate in particular to a kind of cement and mix the leak stopping mortar that clay structure is used, more specifically relate to a kind of be suitable for engineerings such as pond, house, vault, tunnel repair usefulness have high permeability resistant can and certain flexible partly flexible fast blockage mortar.
Background technology
It is that structured material is built that existing building adopts cement, concrete mostly.Cement concrete constructions often because of self aquation is shunk, not enough, impervious not up to standard, the settlement of foundation of degree of compactness, temperature variation cause distortion or undesirable etc. former thereby produce the crack because of design defect, construction, forms breakthrough.There is seepage in building structure, and not only influence is normal uses, and can shorten the work-ing life of buildings, and therefore carrying out the waterproofing and leakage-stopping processing is effective solution.
At present, the kind of material for quickly stopping leakage is more on the construction market, form from using commonplace material, substantially can be divided into two big classes, one class is to adopt macromolecular compound as the impervious blocking material that mixes the pise thing merely, another kind of be with cement as base material, add one or more inorganic or organic waterproof materials again.This two classes patching materials sees that with regard to result of use all have shortcoming more or less, the cohesive strength that has is low, easily comes off, and does not reach the leak stopping requirement; The later stage that has shrinks big, and is easy to crack, and the cracking back forms new leakage point; What have contains objectionable impurities, is unfavorable for the long-term behaviour of concrete construction; The time of coagulation that has is longer, the engineering position leak stopping that is not suitable for leaking in a large number.In recent years; constantly there is the people to carry out modification at the defective of leak stopping product on the market; such as Chinese patent application number is 03111858.5; the patent of title " agent to rapidly block up leakage " provides a kind of intensity height; the agent to rapidly block up leakage that time of coagulation is short, this plugging agent are to assign to improve that it is early stage strong and shorten time of coagulation by the one-tenth that changes cement matrix, but do not do improvement aspect anti-permeability strength; and used villaumite as setting accelerator, be unfavorable for the protection of reinforcing bar in the concrete structure.Chinese patent application number provides a kind of water-proofing material for stopping leak for 200410099364.6 patent, this water-proofing material for stopping leak is to have adopted silicate cement and high-alumina cement to who knows composite cementitious material system, and adopt the bentonitic mode of adding to solve the crack seepage problem, because whole system is subjected to silicate cement and high-alumina cement to who knows the influence of mineralogical composition fluctuation, cause the uncontrollable of setting and harden time easily, this patent is not considered the problem of composite cementitious material system later strength negative growth simultaneously.And adopt the wilkinite of high volume, and cause the reduction of water-proof material intensity easily, thereby reduced the degree of compactness of water-proof material, finally influence anti-permeability performance.
Anti-permeability performance is meant the ability of material renitency water infiltration, and the quality of patching materials has confidential relation with the height of its anti-permeability strength.
Summary of the invention
For solving the problem of above existence, the purpose of this invention is to provide a kind of fast solidifying, the early strength height, and have high permeability resistant can half flexible fast blockage mortar.
For realizing above purpose, half flexible fast blockage mortar with high permeability resistant energy of the present invention comprises following each component and weight proportion:
Aluminosulfate cement 45-65%
Mineral filler 20-40%
Wilkinite 0.5-2%
Gypsum 2-5%
Setting accelerator 0.1-0.5%
Water reducer 0.2-0.5%
Ash calcium 2-5%
Redispersable latex powder 1-2%
Above-mentioned half flexible fast blockage mortar with high permeability resistant energy, each component and weight proportion thereof are preferably: aluminosulfate cement 55-60%, mineral filler 30-35%, wilkinite 1-2%, gypsum 2-5%, setting accelerator 0.1-0.2%, water reducer 0.2-0.5%, grey calcium 2-4% and redispersable latex powder 1.5-2%.
Above-mentioned aluminosulfate cement is to be that who knows of main component adds proper amount of gypsum and make with anhydrous sulphur aluminic acid four calcium and Dicalcium Phosphate (Feed Grade).
Above-mentioned mineral filler be granularity less than 150 purpose silica powders or/and Paris white.
Above-mentioned wilkinite is a sodium bentonite or/and calcium-base bentonite, and this wilkinite has intensive water-absorbent, swelling property, contacts the beginning aquation with water, expand 4～5 times, after finishing aquation, become 10～15 times even 30 times gelinite of former particle volume, can prevent that other moisture from infiltrating.
Above-mentioned gypsum is that anhydrite is or/and semi-hydrated gypsum.
Above-mentioned setting accelerator is a Quilonum Retard.
Above-mentioned water reducer for how being or/and the melamine type or/and polycarboxylate system's water reducer.
The main component of above-mentioned grey calcium is Ca (OH)
2
The base polymer of above-mentioned redispersable latex powder is the ethylene-vinyl acetate polymkeric substance, and along with the evaporation of moisture, ethylene-vinyl acetate copolymerization rubber powder can form polymeric film in half flexible fast blockage mortar, improve the flexibility of cement products greatly.
Half flexible fast blockage mortar with high permeability resistant energy of the present invention, its prescription has following advantage:
1, adopt sulphur aluminic acid cement as gelling material, solved the problem of gelling material composition fluctuation, and adopt grey calcium to cooperate setting accelerator to regulate the mortar setting and harden time, make the setting and harden time of this leak stopping mortar become controlled, control the early strength of mortar and avoid later strength negative growth to occur by regulating its add-on simultaneously;
2, utilize gypsum and aluminosulfate cement to who knows mineralogical composition C
4A
3S reacts and has generated the ettringite of expansion, the volume of strict control gypsum with the rate of expansion of control leak stopping mortar about 0.1%, make this leak stopping mortar voids reduce, the wilkinite that is used low-dosage is again filled the space of leak stopping mortar, reaches the purpose that not only improves anti-permeability strength but also do not influence leak stopping mortar ultimate compression strength;
3, improve by adding this organic binder bond of redispersable latex powder that inorganic coagulation material is poor to the smooth surface cohesive force, the shortcoming of poor toughness, thereby improve the bonding force at leak stopping mortar and washcoat interface, improve the non-deformability and the cohesive strength of leak stopping mortar;
4, leak stopping mortar of the present invention has advantages such as fast, 1h intensity height time of coagulation, not retraction of later strength, cohesive strength height, anti-permeability strength height, microdilatancy, non-deformability intensity, can be widely used in the fast blockage of concrete structures such as pond, house, vault, tunnel.
Embodiment
Embodiment 1
1, leak stopping mortar prescription
Aluminosulfate cement 55%
Lime carbonate (granularity is less than 150 orders) 33.2%
Anhydrite 5.0%
Sodium bentonite 1.8%
Melamine type water reducer 0.3%
Quilonum Retard 0.2%
Ash calcium 3.0%
Ethylene-vinyl acetate copolymerization rubber powder 1.5%
2, preparation
By above-mentioned prescription each component is put into agitator, add the water of each component total amount 32% of mortar, mix.
3, the leak stopping mortar that mixes is tested in every performance of different time sections, data are as follows:
Embodiment 2
1, leak stopping mortar prescription
Aluminosulfate cement 60%
Lime carbonate (granularity is less than 150 orders) 29.5%
Semi-hydrated gypsum 2.0%
Sodium bentonite 1.5%
Melamine type water reducer 0.4%
Quilonum Retard 0.15%
Ash calcium 4.0%
Ethylene-vinyl acetate copolymerization rubber powder 2.0%
2, by above-mentioned prescription each component is put into agitator, add the water of each component total amount 31% of mortar, mix.
3, the mortar that mixes is tested in every performance of different time sections, data are as follows:
The every performance that records from embodiment 1,2 as can be seen, leak stopping mortar of the present invention time of coagulation fast, 1h intensity height, not retraction of later strength, particularly anti-permeability strength is near more than the 2MPa, this is unprecedented, other indexs also are better than existing similar fast blockage mortar greatly, for the fast blockage particularly suitable of concrete structures such as pond, house, vault, tunnel.
Claims (10)
- One kind have high permeability resistant can half flexible fast blockage mortar, comprise following each component and weight proportion:Aluminosulfate cement 45-65%Mineral filler 20-40%Wilkinite 0.5-2%Gypsum 2-5%Setting accelerator 0.1-0.5%Water reducer 0.2-0.5%Ash calcium 2-5%Redispersable latex powder 1-2%
- 2. according to the described half flexible fast blockage mortar of claim 1 with high permeability resistant energy, it is characterized in that: described fast blockage mortar with high permeability resistant energy, each component and weight proportion thereof are: aluminosulfate cement 55-60%, mineral filler 30-35%, wilkinite 1-2%, gypsum 2-5%, setting accelerator 0.1-0.2%, water reducer 0.2-0.5%, grey calcium 2-4% and redispersable latex powder 1.5-2%.
- According to according to claim 1 or 2 described have high permeability resistant can half flexible fast blockage mortars, it is characterized in that: described aluminosulfate cement is to be that who knows of main component adds proper amount of gypsum and make with anhydrous sulphur aluminic acid four calcium and Dicalcium Phosphate (Feed Grade).
- According to according to claim 3 described have high permeability resistant can half flexible fast blockage mortar, it is characterized in that: described mineral filler be granularity less than 150 purpose silica powders or/and Paris white.
- According to according to claim 4 described have high permeability resistant can half flexible fast blockage mortar, it is characterized in that: described wilkinite is that sodium bentonite is or/and calcium-base bentonite.
- According to according to claim 1 or 2 described have high permeability resistant can half flexible fast blockage mortars, it is characterized in that: described gypsum is that anhydrite is or/and semi-hydrated gypsum.
- According to according to claim 1 or 2 described have high permeability resistant can half flexible fast blockage mortars, it is characterized in that: described setting accelerator is a Quilonum Retard.
- According to according to claim 1 or 2 described have high permeability resistant can half flexible fast blockage mortars, it is characterized in that: described water reducer for how being or/and the melamine type or/and polycarboxylate system's water reducer.
- According to according to claim 1 or 2 described have high permeability resistant can half flexible fast blockage mortars, it is characterized in that: the main component of described grey calcium is Ca (OH) 2
- According to according to claim 1 or 2 described have high permeability resistant can half flexible fast blockage mortars, it is characterized in that: the base polymer of described redispersable latex powder is the ethylene-vinyl acetate polymkeric substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102941919A CN102001852A (en) | 2010-09-21 | 2010-09-21 | Semiflexible rapid leakstopping mortar with high impermeability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102941919A CN102001852A (en) | 2010-09-21 | 2010-09-21 | Semiflexible rapid leakstopping mortar with high impermeability |
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| CN102001852A true CN102001852A (en) | 2011-04-06 |
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| CN2010102941919A Pending CN102001852A (en) | 2010-09-21 | 2010-09-21 | Semiflexible rapid leakstopping mortar with high impermeability |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553511A (en) * | 2013-11-13 | 2014-02-05 | 江苏博特新材料有限公司 | Cement gel mortar and method for manufacturing semi-flexible pavement of rapid open traffic by using cement gel mortar |
| CN103553532A (en) * | 2013-10-31 | 2014-02-05 | 长沙西华保温材料有限公司 | Composite-based self-heat-insulation building block and preparation method thereof |
| CN104671726A (en) * | 2013-11-28 | 2015-06-03 | 立邦涂料（中国）有限公司 | High-strength cement-based self-leveling mortar |
| CN106186433A (en) * | 2016-08-18 | 2016-12-07 | 北京万邦达环保技术股份有限公司 | A kind of brine waste loads flocculation except hard method |
| CN106747050A (en) * | 2016-11-18 | 2017-05-31 | 中建西部建设西南有限公司 | A kind of concrete leakproof cream and preparation method thereof, application |
| CN109133764A (en) * | 2018-08-22 | 2019-01-04 | 益阳金宙建材科技有限公司 | A kind of fast dry type tunnel mortar and preparation method thereof |
| CN111646748A (en) * | 2020-05-25 | 2020-09-11 | 广东合胜实业股份有限公司 | High-strength anti-permeability leakage repairing material and preparation method thereof |
| CN115403345A (en) * | 2022-09-29 | 2022-11-29 | 云南云天化环保科技有限公司 | Surface treatment method of gypsum-based self-leveling mortar terrace |
| CN115504749A (en) * | 2022-10-20 | 2022-12-23 | 南通装配式建筑与智能结构研究院 | Ultra-high performance concrete and preparation method thereof |
| CN116496049A (en) * | 2023-05-12 | 2023-07-28 | 河北工程大学 | Cement-based grouting material for crack resistance of semi-flexible pavement, and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767970A (en) * | 2010-01-15 | 2010-07-07 | 中国建筑材料科学研究总院 | Auto-waterproof bridging particle |
-
2010
- 2010-09-21 CN CN2010102941919A patent/CN102001852A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767970A (en) * | 2010-01-15 | 2010-07-07 | 中国建筑材料科学研究总院 | Auto-waterproof bridging particle |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553532A (en) * | 2013-10-31 | 2014-02-05 | 长沙西华保温材料有限公司 | Composite-based self-heat-insulation building block and preparation method thereof |
| CN103553511B (en) * | 2013-11-13 | 2015-09-09 | 江苏苏博特新材料股份有限公司 | The method of cement slurry and the half-flexible pavement for the preparation of quick open to traffic thereof |
| CN103553511A (en) * | 2013-11-13 | 2014-02-05 | 江苏博特新材料有限公司 | Cement gel mortar and method for manufacturing semi-flexible pavement of rapid open traffic by using cement gel mortar |
| CN104671726A (en) * | 2013-11-28 | 2015-06-03 | 立邦涂料（中国）有限公司 | High-strength cement-based self-leveling mortar |
| CN106186433A (en) * | 2016-08-18 | 2016-12-07 | 北京万邦达环保技术股份有限公司 | A kind of brine waste loads flocculation except hard method |
| CN106186433B (en) * | 2016-08-18 | 2019-07-05 | 北京万邦达环保技术股份有限公司 | A kind of load flocculation of brine waste removes hard method |
| CN106747050B (en) * | 2016-11-18 | 2019-08-23 | 中建西部建设西南有限公司 | A kind of concrete leakproof cream and preparation method thereof, application |
| CN106747050A (en) * | 2016-11-18 | 2017-05-31 | 中建西部建设西南有限公司 | A kind of concrete leakproof cream and preparation method thereof, application |
| CN109133764A (en) * | 2018-08-22 | 2019-01-04 | 益阳金宙建材科技有限公司 | A kind of fast dry type tunnel mortar and preparation method thereof |
| CN111646748A (en) * | 2020-05-25 | 2020-09-11 | 广东合胜实业股份有限公司 | High-strength anti-permeability leakage repairing material and preparation method thereof |
| CN115403345A (en) * | 2022-09-29 | 2022-11-29 | 云南云天化环保科技有限公司 | Surface treatment method of gypsum-based self-leveling mortar terrace |
| CN115403345B (en) * | 2022-09-29 | 2023-10-17 | 云南云天化环保科技有限公司 | Surface treatment method of gypsum-based self-leveling mortar terrace |
| CN115504749A (en) * | 2022-10-20 | 2022-12-23 | 南通装配式建筑与智能结构研究院 | Ultra-high performance concrete and preparation method thereof |
| CN116496049A (en) * | 2023-05-12 | 2023-07-28 | 河北工程大学 | Cement-based grouting material for crack resistance of semi-flexible pavement, and preparation method and application thereof |
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Address after: 515041 A, international commercial building, No. 106 Jinsha Road, Guangdong, Shantou, China 24B Applicant after: Guangdong Longhu Sci.&Tech. Company Limited Address before: 515041 A, international commercial building, No. 106 Jinsha Road, Guangdong, Shantou, China 24B Applicant before: Shantou SEZ Longhu S&T Co., Ltd. |
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Application publication date: 20110406 |