CN102992692A - Internal-doping type plastic concrete water evaporation inhibitor and preparation method thereof - Google Patents
Internal-doping type plastic concrete water evaporation inhibitor and preparation method thereof Download PDFInfo
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- CN102992692A CN102992692A CN2012104320870A CN201210432087A CN102992692A CN 102992692 A CN102992692 A CN 102992692A CN 2012104320870 A CN2012104320870 A CN 2012104320870A CN 201210432087 A CN201210432087 A CN 201210432087A CN 102992692 A CN102992692 A CN 102992692A
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- water evaporation
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- concrete water
- type plastic
- evaporation inhibitor
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Abstract
The invention discloses an internal-doping type plastic concrete water evaporation inhibitor, comprising the following raw materials in percentage by weight: 90-98% of long-chain fatty alcohol and 2-10% of one substance or a mixture of more than two substances selected from a non-ionic ether surfactant and a non-ionic ester surfactant. The inhibitor disclosed by the invention is easy to prepare, convenient to use, high in water inhibiting efficiency, and can greatly reduce the water evaporation of the surface of the concrete plastic stages.
Description
Technical field
The invention belongs to building material field, be specifically related to a kind of internal doping type plastic concrete water evaporation inhibitor and preparation method thereof.
Background technology
Concrete pouring is an important step of concrete construction, traditional concrete pouring from concrete initial set later on, mainly comprise: (1) covering curing; (2) watering maintenance; (3) curing agent maintenance.Although these maintenance technologies can stop the evaporation of moisture in the concrete, reduce concrete cracking and improve intensity.Yet in concrete practice of construction process, usually run into the quick-drying situation of concrete surface, plateau concrete for example, or envrionment temperature is high, in the situations such as humidity is low, wind speed is high, direct sunlight, concrete surface moisture vaporator rate is higher than concrete bleeding speed, causes the larger negative pressure of generation in the concrete kapillary and volume of concrete is sharply shunk.And the concrete of this moment is in the plastic stage, and intensity can't be resisted the contraction of itself, causes concrete surface to ftracture, crust, be clamminess, and strong wind one blows, and serious " playing ash " phenomenon also occurs; More seriously, concrete surface is dry rapidly, wipes one's face and also can't finish, and has a strong impact on construction progress and later stage property development.
Therefore, how from constructing in early days, reduce immediately the moisture evaporation of concrete surface after complete from concrete depositing, keep concrete plastic state, reduce concrete plastic cracking, improving concrete weather resistance is the problem that must solve in the construction.Patent 201010122850.0 discloses a kind of outer spreading type plastic concrete water evaporation inhibitor, although the excellent performance of this material, the outer method that is coated with has increased working procedure undoubtedly one, has been with inconvenience to construction enterprises.Therefore, invention a kind of can in the plastic stage concrete water evaporation inhibitor mixed significant to the application that promotes this technology undoubtedly.
Summary of the invention
The invention provides a kind of internal doping type plastic concrete water evaporation inhibitor and preparation method thereof.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of internal doping type plastic concrete water evaporation inhibitor, its raw material comprises the mixture of one or more any proportionings in the nonionic ethers tensio-active agent of the pure and mild 2%-10% of long-chain fat of 90-98% or the nonionic esters surface active agent, and described per-cent is mass percent.
Press down the water-based energy for what improve product, described nonionic ethers tensio-active agent is fatty alcohol-polyoxyethylene ether.
Press down the water-based energy in order further to improve, the carbon chain lengths of described fatty alcohol-polyoxyethylene ether is C
8-C
18, oxyethane (EO) number is 6-20; Preferably, the carbon chain lengths of described fatty alcohol-polyoxyethylene ether is C
12-C
16, the oxyethane number is 10-16.Described nonionic esters surface active agent is the mixture of anhydrous sorbitol laurate or polyoxyethylene sorbitan fatty acid ester or both any proportionings.
In order to enhance product performance, the mass content of described nonionogenic tenside is 4%-6%, and the mass content of described long chain aliphatic alcohol is 94-96%.
In order to enhance product performance, described long chain aliphatic alcohol is C
12-C
20Fatty Alcohol(C12-C14 and C12-C18) in the mixture of one or more any proportionings.C
12-C
20Fatty Alcohol(C12-C14 and C12-C18): lauryl alcohol, tridecanol, tetradecyl alcohol, pentadecanol, hexadecanol, heptadecyl alcohol, stearyl alcohol, nonadecanol, eicosanol.
The preparation method of above-mentioned internal doping type plastic concrete water evaporation inhibitor: be 100-1000 μ m with the nonionogenic tenside of the pure and mild 2%-10% of long-chain fat of 90-98% at 70-90 ℃ of lower mixing, ball milling to particle diameter model, get the internal doping type plastic concrete water evaporation inhibitor.
That inhibitor of the present invention prepares is simple, easy to use, it is high to press down water efficient, can significantly reduce the evaporation of concrete plastic stage surface-moisture.
Embodiment
In order to understand better the present invention, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to the following examples.
Embodiment 1
Under 70 ℃ of conditions, with stearyl alcohol, the 10g fatty alcohol-polyoxyethylene ether (C of 90g
8, EO
6) mix and stir, carries out grinding with ball mill after the cooling, to particle diameter 200-400 μ m, prepare the internal doping type plastic concrete water evaporation inhibitor.Be that the internal doping type concrete water evaporation inhibitor of 0.5wt% is incorporated in the concrete with accounting for the cement quality mark, can reduce the moisture evaporation of plastic stage 70%.
Embodiment 2
Under 80 ℃ of conditions, with stearyl alcohol, the hexadecanol of 14g, the 6g fatty alcohol-polyoxyethylene ether (C of 80g
12, EO
12) mix and stir, carries out grinding with ball mill after the cooling, to particle diameter 500-600 μ m, prepare the internal doping type plastic concrete water evaporation inhibitor.Be that the internal doping type concrete water evaporation inhibitor of 0.5wt% is incorporated in the concrete with accounting for the cement quality mark, can reduce the moisture evaporation of plastic stage 72%.
Embodiment 3
Under 90 ℃ of conditions, with lauryl alcohol, the hexadecanol of 70g, the 4g fatty alcohol-polyoxyethylene ether (C of 26g
14, EO
10) mix and stir, carries out grinding with ball mill after the cooling, to particle diameter 100-300 μ m, prepare the internal doping type plastic concrete water evaporation inhibitor.Be that the internal doping type concrete water evaporation inhibitor of 0.5wt% is incorporated in the concrete with accounting for the cement quality mark, can reduce the moisture evaporation of plastic stage 68%.
Embodiment 4
Under 80 ℃ of conditions, with stearyl alcohol, 25g lauryl alcohol, the 3g fatty alcohol-polyoxyethylene ether (C of 70g
16, EO
20), 2g fatty alcohol-polyoxyethylene ether (C
16, EO
10) mix and stir, carries out grinding with ball mill after the cooling, to particle diameter 800-1000 μ m, prepare the internal doping type plastic concrete water evaporation inhibitor.Be that the internal doping type concrete water evaporation inhibitor of 0.5wt% is incorporated in the concrete with accounting for the cement quality mark, can reduce the moisture evaporation of plastic stage 80%.
Embodiment 5
Under 80 ℃ of conditions, with stearyl alcohol, 10g hexadecanol, 11g lauryl alcohol, the 3g fatty alcohol-polyoxyethylene ether (C of 75g
18, EO
20) and 1g fatty alcohol-polyoxyethylene ether (C
18, EO
10) mix and stir, to particle diameter 600-800 μ m, carries out grinding with ball mill after the cooling, prepare the internal doping type plastic concrete water evaporation inhibitor.Be that the internal doping type concrete water evaporation inhibitor of 0.5wt% is incorporated in the concrete with accounting for the cement quality mark, can reduce the moisture evaporation of plastic stage 78%.
Embodiment 6
Under 75 ℃ of conditions, with stearyl alcohol, 18g tetradecyl alcohol, the 2g fatty alcohol-polyoxyethylene ether (C of 80g
8, EO
16) mix and stir, carries out grinding with ball mill after the cooling, to particle diameter 200-400 μ m, prepare the internal doping type plastic concrete water evaporation inhibitor.Be that the internal doping type concrete water evaporation inhibitor of 0.5wt% is incorporated in the concrete with accounting for the cement quality mark, can reduce the moisture evaporation of plastic stage 74%.
Embodiment 7
Under 75 ℃ of conditions, with stearyl alcohol, 10g tridecanol, the 5g fatty alcohol-polyoxyethylene ether (C of 90g
8, EO
14) and 5g fatty alcohol-polyoxyethylene ether (C
8, EO
20) mix and stir, carries out grinding with ball mill after the cooling, to particle diameter 400-600 μ m, prepare the internal doping type plastic concrete water evaporation inhibitor.Be that the internal doping type concrete water evaporation inhibitor of 0.5wt% is incorporated in the concrete with accounting for the cement quality mark, can reduce the moisture evaporation of plastic stage 76%.
Embodiment 8
Under 90 ℃ of conditions, with stearyl alcohol, 20g hexadecanol, 10g lauryl alcohol, 5g anhydrous sorbitol laurate and the 5g fatty alcohol-polyoxyethylene ether (C of 60g
8, EO
16) mix and stir, carries out grinding with ball mill after the cooling, to particle diameter 100-300 μ m, prepare the internal doping type plastic concrete water evaporation inhibitor.Be that the internal doping type concrete water evaporation inhibitor of 0.5wt% is incorporated in the concrete with accounting for the cement quality mark, can reduce the moisture evaporation of plastic stage 68%.
Embodiment 9
Under 90 ℃ of conditions, the stearyl alcohol of 60g, 20g hexadecanol, 15g tetradecyl alcohol, 2.5g polyoxyethylene (30) wool alcohol ether and 2.5g anhydrous sorbitol laurate are mixed and stir, carry out grinding with ball mill after the cooling, to particle diameter 100-300 μ m, prepare the internal doping type plastic concrete water evaporation inhibitor.Be that the internal doping type concrete water evaporation inhibitor of 0.5wt% is incorporated in the concrete with accounting for the cement quality mark, can reduce the moisture evaporation of plastic stage 64%.
Embodiment 10
Under 80 ℃ of conditions, with stearyl alcohol, 30g hexadecanol, 4g lauryl alcohol, 2g polyoxyethylene sorbitan fatty acid ester (the hall pharmaceutical information company limited of emblem, Hefei) and the 4g fatty alcohol-polyoxyethylene ether (C of 60g
18, EO
10) mix and stir, carries out grinding with ball mill after the cooling, to particle diameter 200-400 μ m, prepare the internal doping type plastic concrete water evaporation inhibitor.Be that the internal doping type concrete water evaporation inhibitor of 0.5wt% is incorporated in the concrete with accounting for the cement quality mark, can reduce the moisture evaporation of plastic stage 70%.
Embodiment 11
Under 80 ℃ of conditions, with stearyl alcohol, 20g hexadecanol, 14g lauryl alcohol, 3g anhydrous sorbitol laurate and the 3g fatty alcohol-polyoxyethylene ether (C of 60g
8, EO
6) mix and stir, carries out grinding with ball mill after the cooling, to particle diameter 200-400 μ m, prepare the internal doping type plastic concrete water evaporation inhibitor.Be that the internal doping type concrete water evaporation inhibitor of 0.5wt% is incorporated in the concrete with accounting for the cement quality mark, can reduce the moisture evaporation of plastic stage 58%.
Comparative Examples 1
Under 70 ℃ of conditions, with stearyl alcohol, the 10g fatty alcohol-polyoxyethylene ether (C of 90g
8, EO
6) and the 2g sodium lauryl sulphate mix and stir, carries out grinding with ball mill after the cooling, to particle diameter 200-400 μ m, prepare the internal doping type plastic concrete water evaporation inhibitor.Be that the internal doping type concrete water evaporation inhibitor of 0.5wt% is incorporated in the concrete with accounting for the cement quality mark, can reduce the moisture evaporation of plastic stage 62%.
In above-described embodiment, concrete match ratio is experimental technique when:
Cement: " Jin Ningyang " 425R.P.II type cement;
Sand: fineness modulus is 2.6 medium sand;
Stone: the Nanjing six directions is produced basalt, and crush index is 2.5%, and particle diameter is the rubble of 5-20mm;
Concrete mix:
The testing method of moisture evaporation inhibiting rate:
Under identical experiment condition, be that the internal doping type concrete water evaporation inhibitor of 0.5wt% is incorporated in the concrete with accounting for the cement quality mark, adopt weighting method relatively to spray inhibitor and the water evaporation quantity that does not spray the concrete surface of inhibitor, calculate the efficient that reduces the moisture evaporation, calculation formula is as follows:
Wherein, W
m=W
M1-W
M2, W
n=W
N1-W
N2, W
M1, W
M2Be respectively the concrete initial weight of not mixing inhibitor and the weight behind the moisture evaporation; W
N1And W
N2Be respectively the concrete initial weight of mixing inhibitor and the weight behind the moisture evaporation.
Claims (8)
1. internal doping type plastic concrete water evaporation inhibitor, it is characterized in that: its raw material comprises the mixture of one or more any proportionings in the nonionic ethers tensio-active agent of the pure and mild 2%-10% of long-chain fat of 90-98% or the nonionic esters surface active agent, and described per-cent is mass percent.
2. internal doping type plastic concrete water evaporation inhibitor as claimed in claim 1, it is characterized in that: described nonionic ethers tensio-active agent is fatty alcohol-polyoxyethylene ether.
3. internal doping type plastic concrete water evaporation inhibitor as claimed in claim 2, it is characterized in that: the carbon chain lengths of described fatty alcohol-polyoxyethylene ether is C
8-C
18, the oxyethane number is 6-20.
4. internal doping type plastic concrete water evaporation inhibitor as claimed in claim 3, it is characterized in that: the carbon chain lengths of described fatty alcohol-polyoxyethylene ether is C
12-C
16, the oxyethane number is 10-16.
5. such as the described internal doping type plastic concrete water evaporation inhibitor of claim 1 to 4 any one, it is characterized in that: described nonionic esters surface active agent is the mixture of anhydrous sorbitol laurate or polyoxyethylene sorbitan fatty acid ester or both any proportionings.
6. such as the described internal doping type plastic concrete water evaporation inhibitor of claim 1 to 4 any one, it is characterized in that: described long chain aliphatic alcohol is C
12-C
20Fatty Alcohol(C12-C14 and C12-C18) in the mixture of one or more any proportionings.
7. such as the described internal doping type plastic concrete water evaporation inhibitor of claim 1 to 4 any one, it is characterized in that: the mass content of described long chain aliphatic alcohol is 94-96%, and the mass content of described nonionogenic tenside is 4%-6%.
8. the preparation method of the described internal doping type plastic concrete water evaporation inhibitor of claim 1 to 7 any one, it is characterized in that: be 100-1000 μ m with the nonionogenic tenside of the pure and mild 2%-10% of long-chain fat of 90-98% at 70-90 ℃ of lower mixing, ball milling to particle diameter, get the internal doping type plastic concrete water evaporation inhibitor.
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|---|---|---|---|
| CN201210432087.0A CN102992692B (en) | 2012-11-01 | 2012-11-01 | Internal-doping type plastic concrete water evaporation inhibitor and preparation method thereof |
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| CN102992692B CN102992692B (en) | 2014-09-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107337375A (en) * | 2016-12-07 | 2017-11-10 | 江苏苏博特新材料股份有限公司 | A kind of concrete admixture and use a kind of its premixing pervious concrete |
| CN109020406A (en) * | 2018-09-29 | 2018-12-18 | 北京高能时代环境技术股份有限公司 | A kind of plastic concrete and preparation method thereof of anti-inorganic salts |
| CN110655344A (en) * | 2019-10-18 | 2020-01-07 | 江苏苏博特新材料股份有限公司 | Anti-cracking additive suitable for strong-constraint superimposed wall lining concrete |
| CN110963819A (en) * | 2018-09-29 | 2020-04-07 | 镇江苏博特新材料有限公司 | Preparation method of concrete water evaporation inhibitor with core-shell structure |
-
2012
- 2012-11-01 CN CN201210432087.0A patent/CN102992692B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| 郭玉梅等: "水分蒸发抑制剂的实验研究", 《应用化工》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107337375A (en) * | 2016-12-07 | 2017-11-10 | 江苏苏博特新材料股份有限公司 | A kind of concrete admixture and use a kind of its premixing pervious concrete |
| CN109020406A (en) * | 2018-09-29 | 2018-12-18 | 北京高能时代环境技术股份有限公司 | A kind of plastic concrete and preparation method thereof of anti-inorganic salts |
| CN110963819A (en) * | 2018-09-29 | 2020-04-07 | 镇江苏博特新材料有限公司 | Preparation method of concrete water evaporation inhibitor with core-shell structure |
| CN110963819B (en) * | 2018-09-29 | 2021-12-17 | 镇江苏博特新材料有限公司 | Preparation method of concrete water evaporation inhibitor with core-shell structure |
| CN110655344A (en) * | 2019-10-18 | 2020-01-07 | 江苏苏博特新材料股份有限公司 | Anti-cracking additive suitable for strong-constraint superimposed wall lining concrete |
| CN110655344B (en) * | 2019-10-18 | 2023-01-03 | 江苏苏博特新材料股份有限公司 | Anti-cracking additive suitable for strong-constraint superimposed wall lining concrete |
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| CN102992692B (en) | 2014-09-17 |
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Owner name: JIANGSU SUBOTE NEW MATERIAL CO., LTD. Free format text: FORMER OWNER: BOTE NEW MATERIAL CO., LTD., JIANGSU Effective date: 20150212 |
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Effective date of registration: 20150212 Address after: Jiangning District of Nanjing City, Jiangsu province 211103 Li Quan Lu No. 118 Patentee after: Jiangsu Subute New Materials Co., Ltd. Patentee after: Jiangsu Boli New Material Co., Ltd. Address before: 211103, No. 59 West Wan An Road, Jiangning District, Jiangsu, Nanjing Patentee before: Jiangsu Bote New Materials Co., Ltd. Patentee before: Jiangsu Subute New Materials Co., Ltd. Patentee before: Jiangsu Provincial Architectural Science Institute Ltd. Patentee before: Jiangsu Boli New Material Co., Ltd. |