CN108503260A - A kind of Underwater antidispersion concrete admixture for building - Google Patents
A kind of Underwater antidispersion concrete admixture for building Download PDFInfo
- Publication number
- CN108503260A CN108503260A CN201810239134.7A CN201810239134A CN108503260A CN 108503260 A CN108503260 A CN 108503260A CN 201810239134 A CN201810239134 A CN 201810239134A CN 108503260 A CN108503260 A CN 108503260A
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- CN
- China
- Prior art keywords
- parts
- water
- underwater
- concrete
- antidispersion
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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
- 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
-
- 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
- C04B2103/44—Thickening, gelling or viscosity increasing agents
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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 Underwater antidispersion concrete admixture for building,Include the component of following parts by weight,12 parts of methylcellulose,12 parts of hydroxypropyl methyl starch,25 parts of zeolite powder,10 15 parts of stearic acid,10 12 parts of naphthalene series high-efficiency water-reducing agent,12 parts of sepiolite fibre,35 parts of polyacrylamide,13 parts of polyvinyl alcohol,35 parts of sodium aluminate,20 22 parts of polycarboxylate water-reducer,63 73 parts of water,10 12 parts of polypropylene amine,The cohesiveness of General Promotion concrete,Mobility,Anti-impact dissipates property and self-compacting ability,It is not isolated when mix being made to pour in water,Do not disperse,Self-leveling,Self-compaction,It is not required to vibrate,And the moisture that original can be poured surface squeezes out,It is bonded well with old concrete surface after solidification,Methylcellulose and polyacrylamide are as anti-dispersant,Assign the good cohesiveness of concrete and water resistant erosion.
Description
Technical field
The present invention relates to building material technical field more particularly to a kind of Underwater antidispersion concrete admixture for building.
Background technology
Currently, be directly cast in using normal concrete under water, due to being acted on by current scour, concrete mix
Middle cement slurry is seriously detached with gathering materials, and cement mortar can be broken up loss by flow, and not only cement slurry is few in pour mass, but also
Water/glue ratio greatly increases, and concrete structure uniformity is very poor, intensity and durability degradation.It is carried out using normal concrete
Underwater pouring pollutes caused by Its Adjacent Waters environment and is difficult to imagine to the destruction of organism in water.For many years, in order to improve
The quality of underwater structures is poured into a mould with normal concrete, engineering unit also used a variety of special construction methods, was such as arranged using cofferdam
Water law, folded bag method, pre-packed method are constructed using construction tools such as conduit, bottom opening containers, but put into practice card
It is bright, using these traditional construction methods, there are the shortcomings that it is still very much, not only quantities is big, but also careless slightly, engineering matter
Amount accident is difficult to avoid that the example of failure is also more.
Invention content
In consideration of it, the present invention provides a kind of Underwater antidispersion concrete admixture for building, including following parts by weight
Component, 1-2 parts of methylcellulose, 1-2 parts of hydroxypropyl methyl starch, 2-5 parts of zeolite powder, 10-15 parts of stearic acid, naphthalene series high-efficiency
10-12 parts of water-reducing agent, 1-2 parts of sepiolite fibre, 3-5 parts of polyacrylamide, 1-3 parts of polyvinyl alcohol, 3-5 parts of sodium aluminate, poly- carboxylic
Sour water-reducing agent 20-22 parts, 63-73 parts of water, 10-12 parts of polypropylene amine.
The present invention is further described, the naphthalene series high-efficiency water-reducing agent is the naphthalene sulfonic acids first that sodium sulphate content is less than 2%
Aldehyde condensate.
The present invention is further described, the polyvinyl alcohol is 70 parts.
The present invention is further described, 4 parts of the sodium aluminate.
Using above-mentioned technical proposal, have the advantages that：
Additive uses cellulose, resin and the compound mode of high performance concrete water-reducing agent, the adhesive aggregation of General Promotion concrete
Property, mobility, anti-impact dissipate property and self-compacting ability, do not isolate, do not disperse when mix being made to pour in water, Self-leveling, from close
In fact, it is not required to vibrate, and the moisture that original can be poured surface squeezes out, and bonds good, Methyl cellulose after solidification with old concrete surface
Element and polyacrylamide assign the good cohesiveness of concrete and water resistant erosion as anti-dispersant.
Specific implementation mode
A kind of Underwater antidispersion concrete admixture for building includes the component of following parts by weight, methylcellulose 1-2
Part, 1-2 parts of hydroxypropyl methyl starch, 2-5 parts of zeolite powder, 10-15 parts of stearic acid, 10-12 parts of naphthalene series high-efficiency water-reducing agent, sepiolite
1-2 parts of fiber, 3-5 parts of polyacrylamide, 1-3 parts of polyvinyl alcohol, 3-5 parts of sodium aluminate, 20-22 parts of polycarboxylate water-reducer, water 63-
73 parts, 10-12 parts of polypropylene amine.
The present invention is further described, the naphthalene series high-efficiency water-reducing agent is the naphthalene sulfonic acids first that sodium sulphate content is less than 2%
Aldehyde condensate.
The present invention is further described, the polyvinyl alcohol is 70 parts.
The present invention is further described, 4 parts of the sodium aluminate.
Using above-mentioned technical proposal, have the advantages that：
Additive uses cellulose, resin and the compound mode of high performance concrete water-reducing agent, the adhesive aggregation of General Promotion concrete
Property, mobility, anti-impact dissipate property and self-compacting ability, do not isolate, do not disperse when mix being made to pour in water, Self-leveling, from close
In fact, it is not required to vibrate, and the moisture that original can be poured surface squeezes out, and bonds good, Methyl cellulose after solidification with old concrete surface
Element and polyacrylamide assign the good cohesiveness of concrete and water resistant erosion as anti-dispersant.
The foregoing describe the basic principles and main features of the present invention, It should be understood by those skilled in the art that of the invention
It is not restricted to the described embodiments, the above embodiments and description only illustrate the principle of the present invention, is not departing from
Under the premise of spirit and scope of the invention, various changes and improvements may be made to the invention, these changes and improvements both fall within requirement
In the scope of the invention of protection, invents claimed range and be defined by the appending claims and its equivalent thereof.
Claims (4)
1. a kind of Underwater antidispersion concrete admixture for building, which is characterized in that include the component of following parts by weight, methyl
1-2 parts of cellulose, 1-2 parts of hydroxypropyl methyl starch, 2-5 parts of zeolite powder, 10-15 parts of stearic acid, naphthalene series high-efficiency water-reducing agent 10-12
Part, 1-2 parts of sepiolite fibre, 3-5 parts of polyacrylamide, 1-3 parts of polyvinyl alcohol, 3-5 parts of sodium aluminate, polycarboxylate water-reducer 20-
22 parts, 63-73 parts of water, 10-12 parts of polypropylene amine.
2. a kind of Underwater antidispersion concrete admixture for building according to claim 1, which is characterized in that the naphthalene system
High efficiency water reducing agent is the naphthalene sulfonic acid-formaldehyde condensation product that sodium sulphate content is less than 2%.
3. a kind of Underwater antidispersion concrete admixture for building according to claim 1, which is characterized in that the poly- second
Enol is 70 parts.
4. a kind of Underwater antidispersion concrete admixture for building according to claim 1, which is characterized in that the aluminic acid
4 parts of sodium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810239134.7A CN108503260A (en) | 2018-03-22 | 2018-03-22 | A kind of Underwater antidispersion concrete admixture for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810239134.7A CN108503260A (en) | 2018-03-22 | 2018-03-22 | A kind of Underwater antidispersion concrete admixture for building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108503260A true CN108503260A (en) | 2018-09-07 |
Family
ID=63378088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810239134.7A Withdrawn CN108503260A (en) | 2018-03-22 | 2018-03-22 | A kind of Underwater antidispersion concrete admixture for building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108503260A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111454026A (en) * | 2020-04-02 | 2020-07-28 | 中交上海三航科学研究院有限公司 | Underwater foundation bagged concrete, preparation method and application |
| CN111777389A (en) * | 2020-06-29 | 2020-10-16 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Quick-setting adjustable cement-based underwater anti-dispersion ultrafast hard grouting material, preparation method and application |
| CN114890722A (en) * | 2022-04-29 | 2022-08-12 | 河海大学 | Self-flowing cohesive soil and preparation method thereof |
-
2018
- 2018-03-22 CN CN201810239134.7A patent/CN108503260A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111454026A (en) * | 2020-04-02 | 2020-07-28 | 中交上海三航科学研究院有限公司 | Underwater foundation bagged concrete, preparation method and application |
| CN111777389A (en) * | 2020-06-29 | 2020-10-16 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Quick-setting adjustable cement-based underwater anti-dispersion ultrafast hard grouting material, preparation method and application |
| CN111777389B (en) * | 2020-06-29 | 2022-04-15 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Quick-setting adjustable cement-based underwater anti-dispersion ultrafast hard grouting material, preparation method and application |
| CN114890722A (en) * | 2022-04-29 | 2022-08-12 | 河海大学 | Self-flowing cohesive soil and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180907 |
|
| WW01 | Invention patent application withdrawn after publication |