CN101045620A - Multifunction anti-crack water-proof agent for concrete and preparation method - Google Patents
Multifunction anti-crack water-proof agent for concrete and preparation method Download PDFInfo
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- CN101045620A CN101045620A CN 200710061630 CN200710061630A CN101045620A CN 101045620 A CN101045620 A CN 101045620A CN 200710061630 CN200710061630 CN 200710061630 CN 200710061630 A CN200710061630 A CN 200710061630A CN 101045620 A CN101045620 A CN 101045620A
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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
- C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A multifunctional anti-cracking water-proofing agent for improving the flowability and slump of concrete, increasing the strength, impervious performance and compactness of solidified concrete, and decreasing the consumption of water is prepared proportionally from high-concentration naphthelene-series efficient water reducing agent, sodium laurylsulfate, sodium gluconate, hydroxypropyl methylcellulose, vinyl acetate-ethene copolymer emulsion and water through sequential mixing and stirring.
Description
Technical field
The present invention relates to a kind of construction timber, particularly a kind of multifunction anti-crack water-proof agent for concrete and preparation method belong to the cement products technical field.
Background technology
In the various building operation, to use concrete in a large number, cracking is an insoluble always problem in the construction quality in the deposit concrete process, it is perplexing each construction and applying unit for a long time, and have influence on the normal use of buildings, and can be because cracking reduce concrete work-ing life, especially for since alleviating a large amount of commodity in use concrete of municipal pollution (ready mixed concrete), even more serious through the distress in concrete phenomenon that long distance is carried.In order to solve the technical barrier of this long-term puzzlement, the insider passes through secular practice and gropes, the principal element of having found out concrete cracking is owing to metamorphosis causes, distortion comprises: temperature deformation, shrinkage strain, and foundation settlement distortion etc., after these distortion surpass the tensile strength of concrete pre-stress, will cause concrete cracking, therefore have only to have solved concrete these distortion and could fundamentally solve the crack on concrete problem.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of concrete long that can be fit to have the multifunction anti-crack water-proof agent for concrete and the preparation method of better resistance to cleavage simultaneously again apart from conveying.
Alleged problem of the present invention is solved by following technical scheme:
A kind of multifunction anti-crack water-proof agent for concrete, its special feature is, the raw material that comprises following weight unit in the composition: high dense naphthalene series high-efficiency water-reducing agent 180-220, sodium lauryl sulphate 2.2-2.7, Sunmorl N 60S 6.5-8.5, Vltra tears 0.8-1.2, vinyl-acetic ester-ethylene copolymerization emulsions 180-220, water 570-590.
Above-mentioned multifunction anti-crack water-proof agent for concrete, the dense naphthalene series high-efficiency water-reducing agent content of described height is not less than 90%, sodium lauryl sulphate content is not less than 60%, the gluconic acid sodium content is not less than 98%, Vltra tears content is not less than 98%, and vinyl-acetic ester-ethylene copolymerization emulsions content is not less than 55%.
A kind of preparation method of multifunction anti-crack water-proof agent for concrete, take by weighing each component raw material by said ratio after, again by carrying out as step:
A. in a liquid stirrers, add water 2/6ths, start stirrer, add Vltra tears slowly, churning time 29-35 minute, place 110-150 minute standby;
B. in another stirrer, add water 3/6ths and start stirrer, add sodium lauryl sulphate, Sunmorl N 60S, high dense naphthalene series high-efficiency water-reducing agent successively slowly, stir 29-35 minute standby;
C. remainder water is diluted vinyl-acetic ester-ethylene copolymerization emulsions, it is standby to stir;
D. the stirrer that starts above-mentioned steps a stirred 10-12 minute, dropped into the stirring material among above-mentioned steps b and the c subsequently successively, stirred 29-35 minute;
E. the material that stirs among the above-mentioned steps d is deposited in the finished container 5 ℃-40 ℃ of storage temperatures.
The present invention is a kind of concrete admixture of groping, test release through long-term practice repeatedly, it utilizes high dense naphthalene series high-efficiency water-reducing agent to improve concrete flowability and slump, reduce water consumption, improve concrete serviceability, improve concrete each age strength, anti-permeability performance, degree of compactness etc.; Utilize sodium lauryl sulphate to increase concrete air content; Reduce concrete segregation, bleeding etc.; Utilize Sunmorl N 60S to increase concrete ultimate compression strength, control concrete loss of slump; Utilize Vltra tears to improve concrete bonding, resistance to tension; Increase concrete water retention capacity and resistance to cleavage etc.; Utilize vinyl-acetic ester-ethylene copolymerization emulsions to improve concrete bonding cohesive force.After testing, the every technical indicator of product of the present invention meets or exceeds national standard, and it is conspicuous that product of the present invention is used for its advantage of concrete depositing: 1. the concrete of new cast only needs surface layer to cover does not need water seasoning.2. concrete density does not have cracking well.Good, the no bleeding of concrete workability, do not emanate.4. little, intensity of slump loss and impervious grade adhere to specification.5. be suitable for pumping (commodity) concrete.
Embodiment
Each component Analysis on action mechanism is as follows in the formula for a product of the present invention:
High dense naphthalene series high-efficiency water-reducing agent: effects such as this component mainly plays in this product and improves concrete flowability and slump, reduces water consumption, improves concrete serviceability, improves concrete each age strength, improves concrete anti-permeability performance, the concrete degree of compactness of raising.
Sodium lauryl sulphate: this component main rising in this product increases concrete air content, reduces concrete segregation, bleeding, improves concrete impervious ability, improves concrete workability, improves concrete weather resistance and anti-freezing property etc.
Sunmorl N 60S: this component can increase concrete ultimate compression strength in this product, prolongs concrete time of coagulation, controls concrete loss of slump, reduces the thermal cracking that concrete produces because of hydration heat.
Vltra tears: this component increases concrete water retention capacity playing concrete bonding, the resistance to tension of raising, increases concrete resistance to cleavage etc.
Vinyl-acetic ester-ethylene copolymerization emulsions: this component main rising in this product improved concrete bonding cohesive force, improve concrete waterproof, impervious, fracture resistance, form the water loss of one deck waterproof membrane minimizing concrete at the concrete internal layer and play the purpose of exempting from maintenance.
Water: the strength of solution that reduces this product makes each component energy uniform distribution.
This product is used for concrete, stirs the initial stage at concrete, at first participates in reaction by dense naphthalene series high-efficiency water-reducing agent of height and sodium lauryl sulphate, improve concrete flowability, increase concrete slump and workability, reduced concrete bleeding, helped concrete pumping and cast.The adding of Sunmorl N 60S makes concrete slump be under control with interior at 2 hours, has reduced the loss of slump that the concrete water loss is caused because of hydrated cementitious and temperature height, for condition has been created in concrete remote conveying.After the concrete depositing because the delayed coagulation of Sunmorl N 60S, delayed the heat-transmission of concrete early water, reduced the thermal cracking that produces owing to the heat-transmission of concrete early water, simultaneously because of admixture the concrete of water reducer and Sunmorl N 60S because degree of mobilization is good, so concrete is more closely knit, for the later intensity of concrete with imperviously laid good basis.After the concrete final set, the adding of vinyl-acetic ester-ethylene copolymerization emulsions makes each small cavity of inside concrete form the multilayer flashing film, can reduce the moisture evaporation of concrete itself, make the mixing water of concrete itself be enough to the maintenance water of abundant fill concrete.The adding of Vltra tears and vinyl-acetic ester-ethylene copolymerization emulsions, make the cementability between concrete cement, the sandstone material more good, increase concrete tension, fracture resistance, can reduce the concrete cracking that produces because of concrete pulling force deficiency because of temperature deformation, shrinkage strain and foundation settlement distortion etc.To sum up, the concrete that has added this product has reduced mixing water significantly; Increased concrete degree of compactness, each age strength of concrete all has raising in various degree, meets or exceeds standard.
Several specific embodiments below are provided:
Embodiment 1: take by weighing following raw material according to prescription: high dense naphthalene series high-efficiency water-reducing agent 180kg, sodium lauryl sulphate 2.5kg, Sunmorl N 60S 7.5kg, Vltra tears 1kg, vinyl-acetic ester-ethylene copolymerization emulsions 200kg, water 580kg.
The preparation method:
A. in a liquid stirrers, add water 2/6ths, start stirrer, add Vltra tears slowly, churning time 30min, place 2 hours standby;
B. in another stirrer, add water 3/6ths and start stirrer, add sodium lauryl sulphate, Sunmorl N 60S, high dense naphthalene series high-efficiency water-reducing agent successively slowly, to stir 30min. standby;
C. for dilution vinyl-acetic ester-ethylene copolymerization emulsions, it evenly is divided into 4 equal portions, is respectively charged in 4 containers, and with 4 parts of said vesses of packing into of remaining moisture, standby with agitation and dilution;
D. the stirrer that starts above-mentioned steps a stirred 10 minutes, dropped into the stirring material among above-mentioned steps b and the c subsequently successively, stirred 29min;
E. the material that stirs among the above-mentioned steps d is deposited in the finished container 30 ℃ of storage temperatures.
Embodiment 2: take by weighing following raw material according to prescription: high dense naphthalene series high-efficiency water-reducing agent 190kg, sodium lauryl sulphate 2.7kg, Sunmorl N 60S 8kg, Vltra tears 1.1kg, vinyl-acetic ester-ethylene copolymerization emulsions 210kg, water 570kg.
The preparation method:
A. in a liquid stirrers, add water 2/6ths, start stirrer, add Vltra tears slowly, churning time 35min, place 110 minutes standby;
B. in another stirrer, add water 3/6ths and start stirrer, add sodium lauryl sulphate, Sunmorl N 60S successively slowly, high dense naphthalene series high-efficiency water-reducing agent stirred 29 minutes, and is standby;
C. for dilution vinyl-acetic ester-ethylene copolymerization emulsions, it evenly is divided into 4 equal portions, be respectively charged in 4 containers, and with 4 parts of said vesses of packing into of remaining moisture, agitation and dilution is standby;
D. the stirrer that starts above-mentioned steps a stirred 12 minutes, dropped into the stirring material among above-mentioned steps b and the c subsequently successively, stirred 32min;
E. the material that stirs among the above-mentioned steps d is deposited in the finished container 5 ℃ of storage temperatures.
Embodiment 3: take by weighing following raw material according to prescription: high dense naphthalene series high-efficiency water-reducing agent 210kg, sodium lauryl sulphate 2.6kg, Sunmorl N 60S 6.5kg, Vltra tears 1.2kg, vinyl-acetic ester-ethylene copolymerization emulsions 220kg, water 570kg.
Embodiment 4: take by weighing following raw material according to prescription: high dense naphthalene series high-efficiency water-reducing agent 220kg, sodium lauryl sulphate 2.2kg, Sunmorl N 60S 8.5kg, Vltra tears 0.8kg, vinyl-acetic ester-ethylene copolymerization emulsions 180kg, water 590kg.
Embodiment 3 and 4 preparation methods:
A. in a liquid stirrers, add water 2/6ths, start stirrer, add Vltra tears slowly, churning time 29 minutes, place 2 and a half hours standby;
B. in another stirrer, add water 3/6ths and start stirrer, add sodium lauryl sulphate, Sunmorl N 60S, high dense naphthalene series high-efficiency water-reducing agent successively slowly, stir 35min, standby;
C. for dilution vinyl-acetic ester-ethylene copolymerization emulsions, it evenly is divided into 4 equal portions, is respectively charged in 4 containers, and with 4 parts of said vesses of packing into of remaining moisture, standby with agitation and dilution;
D. the stirrer that starts above-mentioned steps a stirred 10 minutes, dropped into the stirring material among above-mentioned steps b and the c subsequently successively, stirred 35min;
E. the material that stirs among the above-mentioned steps d is deposited in the finished container 40 ℃ of storage temperatures.The every technical performance index of product of the present invention is as follows:
1, pressure bleeding rate ratio: 25%.
2, water-reducing rate: 〉=12%.
3, slump increased value: 110mm.
4, slump retention value: 30min 160mm; 60min 130mm.
5, compressive strength rate: 3d 〉=90%; 7d 〉=90%; 28d 〉=90%.
6, permeated height ratio :≤35%.
7,48h water demand ratio :≤72%.
8,28d shrinkage ratio :≤135%.
9, total alkali content: 3.5%.
10, admixture ammonia burst size: 0.01%.
11, chloride ion content: 0.4%.
12, total alkali content: 2.82%.
13, ammonia burst size＜0.01%.
When product of the present invention uses, add in the concrete stirring to, addition is 3.8%-4.5%.
Claims (3)
1. multifunction anti-crack water-proof agent for concrete, it is characterized in that, the raw material that comprises following weight unit in the composition: high dense naphthalene series high-efficiency water-reducing agent 180-220, sodium lauryl sulphate 2.2-2.7, Sunmorl N 60S 6.5-8.5, Vltra tears 0.8-1.2, vinyl-acetic ester-ethylene copolymerization emulsions 180-220, water 570-590.
2. multifunction anti-crack water-proof agent for concrete according to claim 1, it is characterized in that: the dense naphthalene series high-efficiency water-reducing agent content of described height is not less than 90%, sodium lauryl sulphate content is not less than 60%, the gluconic acid sodium content is not less than 98%, Vltra tears content is not less than 98%, and vinyl-acetic ester-ethylene copolymerization emulsions content is not less than 55%.
3. the preparation method of a multifunction anti-crack water-proof agent for concrete as claimed in claim 1 or 2 is characterized in that, take by weighing each component raw material according to claim 1 or 2 described proportionings after, undertaken by following step:
A. in a liquid stirrers, add water 2/6ths, start stirrer, add Vltra tears slowly, churning time 29-35 minute, place 110-150 minute standby;
B. in another stirrer, add water 3/6ths and start stirrer, add sodium lauryl sulphate, Sunmorl N 60S, high dense naphthalene series high-efficiency water-reducing agent successively slowly, stir 29-35 minute standby;
C. remainder water is diluted vinyl-acetic ester-ethylene copolymerization emulsions, it is standby to stir;
D. the stirrer that starts above-mentioned steps a stirred 10-12 minute, dropped into the stirring material among above-mentioned steps b and the c subsequently successively, stirred 29-35 minute.
E. the material that stirs among the above-mentioned steps d is deposited in the finished container 5 ℃-40 ℃ of storage temperatures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB200710061630XA CN100445230C (en) | 2007-03-26 | 2007-03-26 | Multifunction anti-crack water-proof agent for concrete and preparation method |
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| CNB200710061630XA CN100445230C (en) | 2007-03-26 | 2007-03-26 | Multifunction anti-crack water-proof agent for concrete and preparation method |
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| CN101045620A true CN101045620A (en) | 2007-10-03 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102344263A (en) * | 2010-08-02 | 2012-02-08 | 北京丰汇华旗科技开发有限公司 | Novel process for producing mortar concrete waterproofing agent |
| CN104072009A (en) * | 2014-06-02 | 2014-10-01 | 广西贵港市金砼新型建材科技有限公司 | Concrete contraction-reducing, anti-cracking, water reducing and proofing compacting agent and preparation method thereof |
| CN104072010A (en) * | 2014-06-02 | 2014-10-01 | 广西贵港市金砼新型建材科技有限公司 | Crack-resistant water-reducing and waterproof compacting agent for concrete and production method thereof |
| CN105481285A (en) * | 2015-12-10 | 2016-04-13 | 文登蓝岛建筑工程有限公司 | Multifunctional pumped concrete anti-cracking waterproofing agent |
| CN105731873A (en) * | 2016-03-09 | 2016-07-06 | 文登蓝岛建筑工程有限公司 | Multifunctional anti-cracking water-proofing agent available for pumping concrete |
| CN106116354A (en) * | 2016-06-28 | 2016-11-16 | 蚌埠市方阵商品混凝土有限公司 | A kind of crack resistence concrete |
| CN107235697A (en) * | 2017-07-05 | 2017-10-10 | 合肥市片叶装饰工程有限公司 | High-performance concrete waterproofing agent and preparation method thereof |
| CN107903686A (en) * | 2017-11-27 | 2018-04-13 | 桂林市和鑫防水装饰材料有限公司 | A kind of fluorine silicon emulsion water-proof agent and preparation method thereof |
| CN114014583A (en) * | 2021-11-19 | 2022-02-08 | 广西筑园建材有限公司 | Multifunctional concrete waterproofing agent and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326796C (en) * | 2003-05-15 | 2007-07-18 | 同济大学 | Underwater antidispersion concrete admixture for building |
| CN100391889C (en) * | 2004-03-22 | 2008-06-04 | 常州市宇乔建材科技有限公司 | Heat insulating mortar powder and its prepn process |
-
2007
- 2007-03-26 CN CNB200710061630XA patent/CN100445230C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102344263B (en) * | 2010-08-02 | 2015-09-02 | 北京丰汇华旗科技开发有限公司 | A kind of mortar concrete waterproofing agent production technique |
| CN102344263A (en) * | 2010-08-02 | 2012-02-08 | 北京丰汇华旗科技开发有限公司 | Novel process for producing mortar concrete waterproofing agent |
| CN104072010B (en) * | 2014-06-02 | 2016-08-17 | 广西贵港市金砼新型建材科技有限公司 | Crack resistance type concrete diminishing waterproof compacting agent and production method thereof |
| CN104072009A (en) * | 2014-06-02 | 2014-10-01 | 广西贵港市金砼新型建材科技有限公司 | Concrete contraction-reducing, anti-cracking, water reducing and proofing compacting agent and preparation method thereof |
| CN104072010A (en) * | 2014-06-02 | 2014-10-01 | 广西贵港市金砼新型建材科技有限公司 | Crack-resistant water-reducing and waterproof compacting agent for concrete and production method thereof |
| CN104072009B (en) * | 2014-06-02 | 2016-04-27 | 广西贵港市金砼新型建材科技有限公司 | A kind of concrete reducing and anti-cracking diminishing waterproof compacting agent and production method thereof |
| CN105481285A (en) * | 2015-12-10 | 2016-04-13 | 文登蓝岛建筑工程有限公司 | Multifunctional pumped concrete anti-cracking waterproofing agent |
| CN105731873A (en) * | 2016-03-09 | 2016-07-06 | 文登蓝岛建筑工程有限公司 | Multifunctional anti-cracking water-proofing agent available for pumping concrete |
| CN106116354A (en) * | 2016-06-28 | 2016-11-16 | 蚌埠市方阵商品混凝土有限公司 | A kind of crack resistence concrete |
| CN107235697A (en) * | 2017-07-05 | 2017-10-10 | 合肥市片叶装饰工程有限公司 | High-performance concrete waterproofing agent and preparation method thereof |
| CN107903686A (en) * | 2017-11-27 | 2018-04-13 | 桂林市和鑫防水装饰材料有限公司 | A kind of fluorine silicon emulsion water-proof agent and preparation method thereof |
| CN114014583A (en) * | 2021-11-19 | 2022-02-08 | 广西筑园建材有限公司 | Multifunctional concrete waterproofing agent and preparation method thereof |
| CN114014583B (en) * | 2021-11-19 | 2022-12-16 | 广西筑园建材有限公司 | Multifunctional concrete waterproofing agent and preparation method thereof |
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| CN100445230C (en) | 2008-12-24 |
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Granted publication date: 20081224 Termination date: 20110326 |