CN1583649A - Preparing method for aminosulfonic water-reducing agent - Google Patents
Preparing method for aminosulfonic water-reducing agent Download PDFInfo
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- CN1583649A CN1583649A CN 200410024351 CN200410024351A CN1583649A CN 1583649 A CN1583649 A CN 1583649A CN 200410024351 CN200410024351 CN 200410024351 CN 200410024351 A CN200410024351 A CN 200410024351A CN 1583649 A CN1583649 A CN 1583649A
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- diamino benzene
- water
- water reducer
- sulfonic acid
- reducing agent
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Abstract
The invention is about preparation method of amino sulfoacid water reducing agent. The part by weight of different component is 200 portion of water, 30-50 portion of phenol, 60-90 portion of diamino benzene sulfonic acid or diamino benzene sulfonate, 0-10 portion of urea. The reactor is heating-up to 50-90deg.C, and condensating agent formaldehyde is 50-70portion. Stirred after 4-8 hours, 1-10 portion of alkalinous conditioning agent and 0-2 portion of triethanolamine is added. Stired until it is to room-temperature, then the liquid water reducing agent is gaine. In the invention, diamino benzene sulfonic acid can be sulfanilic acid, diamino benzene sulfonate can be p-amino benzene sulfonate. The water reducing agent has high reducing rate, can control the loss of slump constant, and has high applied value.
Description
Technical field
The present invention relates to the water reducer of a kind of concrete and mortar, the higher water reducer of especially a kind of water-reducing rate.
Background technology
The application of concrete admixture has not only improved the application property of cement concrete and the performance after the sclerosis, and has saved cement, has reduced energy consumption.According to statistics, utilize high efficiency water reducing agent,, can save the cement more than 10%～20% reaching under the same intensity.From concrete stirring and moulding, one ton of high efficiency water reducing agent of every usefulness can be saved four tons in coal.In recent years, because the marked improvement of concrete technology and method of design, the concrete structure trend maximizes and strengthens with high.Reach high-performance in order to make concrete reach high strength, high-durability and high workability, to that is to say, must mix high efficiency water reducing agent at the coagulation soil species.High efficiency water reducing agent is one of indispensable composition material of high performance concrete.The existing water reducer kind of China is pressed the difference on its starting material and the complete processing at present, can be divided into following series: 1, and Lignins (sulfonated lignin, sulfuration lignin, alkali lignin etc.); 2, sulfonated coal tar system (be raw material synthetic water reducer NF, UNF, FDN and MF etc. and be the water reducer AF etc. of raw material with the anthracene) with naphthalene and naphthalene derivatives; 3, condensate of melamine sulfonate and formaldehyde.The lignin water reducer has certain water-reduction and suitable bleed and slow setting, causes excessive slow setting easily; Sulfonated coal tar system and condensate of melamine sulfonate and formaldehyde water reducer have higher water-reducing effect, but are difficult to control concrete slump-loss.
Summary of the invention
The object of the present invention is to provide the thionamic acid based water reducer of a kind of suitable water-reducing rate height, control slump-loss better function.
For achieving the above object, the present invention takes following technical scheme: a kind of preparation method of thionamic acid based water reducer, in reactor, add 200 weight parts waters, the phenol that adds 30～50 weight parts, the diamino benzene sulfonic acid of 60～90 weight parts or diamino benzene sulfonic acid salt, the urea of 0～10 weight part, be warming up to 50～95 ℃, the condensing agent formaldehyde that adds 50～70 weight parts, behind the stirring reaction 4～8 hours, add the alkaline conditioner of 1～10 weight part and the trolamine of 0～2 weight part, cooling and stirring obtains the liquid water reducer to room temperature.
As a kind of improvement, described diamino benzene sulfonic acid is a Sulphanilic Acid.
As a kind of improvement, described diamino benzene sulfonic acid salt is sulfanilate.
Owing to adopted technique scheme, add phenol, diamino benzene sulfonic acid or diamino benzene sulfonic acid salt, urea, be warming up to 50～95 ℃, the molecular structure characteristics are that branch is more after the polymerization, hydrophobic group molecule section is shorter, polarity is strong, and because the thionamic acid based water reducer is the absorption of rigid vertical chain by the absorption of cement particle, how be and trimeric cyanamide system then is rigidity accumbency absorption or point type absorption, the former has the spatial dispersion effect, the water-reducing rate height can make the particle-stabilised dispersion of cement, and the slump is little through time loss.And the latter is the plane repulsive force, and the cement particle is easy to generate physical condensation, and the slump is fast through time loss.So the thionamic acid based water reducer that this programme is made is the water reducer of a kind of suitable water-reducing rate height, control slump-loss better function, has using value preferably.
Embodiment
Embodiment one, in reactor, add 200g water, the phenol that adds 40g, the Sulphanilic Acid of 70g, the urea of 5g, be warming up to 90 ℃, the condensing agent formaldehyde that adds 60g, stirring reaction added the alkaline conditioner of 5g and the triacetamide of 1g after 6 hours, cooling and stirring obtains the liquid water reducer to room temperature.
Embodiment two, in reactor, add 200g water, the phenol that adds 30g, the sulfanilate of 80g, the urea of 5g, be warming up to 95 ℃, the condensing agent formaldehyde that adds 70g, stirring reaction added the alkaline conditioner of 8g and the triacetamide of 1g after 8 hours, cooling and stirring obtains the liquid water reducer to room temperature.
Below be to use the test of the high efficiency water reducing agent that the present invention produces, the present invention is illustrated;
Represented with DB in the sulfamate water reducer table.
Test one: cement paste test and concrete test
Starting material: cement adopts three kinds of products, mountain aluminium 42.5 ordinary portland cements, Mitsubishi's 42.5 ordinary portland cements, scenery with hills and waters 42.5 ordinary portland cements,
Sand adopts medium coarse sand, proportion 2.65, unit weight 1450kg/m
3, grating is qualified, the requirement of organic content meet the specifications.
Rubble, Wingdale rubble, particle diameter 5～25mm, proportion 2.65, unit weight 1460kg/m
3, grating is qualified.
Test one: starch slump test only
| Cement type | Clean slurry is formed | Different time is starched degree of mobilization (cm) only | ||||||
| Cement g | Water ml | Admixture 1.5% | Initially | ?30min | ?60min | ?90min | ?120min | |
| Mountain aluminium 2.5 | ?500 | ?145 | ?3.5 | ?25×25 | ?25×25 | ?25×26 | ?26×25 | ?25×25 |
| Mitsubishi 2.5 | ?500 | ?145 | ?3.5 | ?25×25 | ?25×25 | ?25×25 | ?25×25 | ?24×24 |
| Scenery with hills and waters 2.5 | ?500 | ?145 | ?3.5 | ?25×25 | ?25×25 | ?24.5×24 | ?24×24 | ?24×24 |
Use water reducer of the present invention as can be known by test, to the various cement that adopt in the test, adaptability is preferably all arranged: the initial flow degree is all bigger, and the basic free of losses of 2 hours clean slurry degree of mobilization, water-reducing rate height, control degree of mobilization loss better function.
Test two: concrete test proportioning
| Cement type | Water cement ratio (W/C) | Folk prescription concrete materials (kg/m 3) | ||||
| Cement | Sand | Rubble | Water | Water reducer | ||
| Mountain aluminium 42.5 | ?0.40 | ?440 | ?760 | ?1000 | ?180 | ?1.5％ |
| Mitsubishi 42.5 | ?0.43 | ?415 | ?950 | ?850 | ?180 | ?1.5％ |
| Scenery with hills and waters 42.5 | ?0.30 | ?550 | ?900 | ?850 | ?165 | ?1.5％ |
Concrete is poured sand earlier into 50 liters of forced mixer mixs, is cement and powder then, adds water after mix is even and stirs 1 minute, adds water reducer then, and restir 1 minute is poured coarse aggregate at last into, stirs discharging after 1 minute.Survey the initial slump and degree of mobilization (slump divergence), and survey the slump through the time change test-results and see the following form
| ?No、 | Cement | The slump through the time change (cm) | ||
| Kind | Initially | ??60min | ???120min | |
| ?1 | Mountain aluminium 42.5 | ????24.5 ????6?8 | ??24.5 ??63 | ????23.0 ????48 |
| ?2 | Mitsubishi 42.5 | ????24.0 ????63 | ??21.0 ??62 | ????20.0 ????56 |
| ?3 | Scenery with hills and waters 42.5 | ????23.0 ????58 | ??22.0 ??56 | ????22.0 ????54 |
In the measuring result, molecule is the slump, and denominator is a divergence.
By in the table as can be seen, three kinds of cement slumps change less, remain unchanged substantially in 60～120 minutes, also reach divergence preferably simultaneously.
Claims (3)
1, a kind of preparation method of thionamic acid based water reducer, it is characterized in that: in reactor, add 200 weight parts waters, the phenol that adds 30～50 weight parts, the diamino benzene sulfonic acid of 60～90 weight parts or diamino benzene sulfonic acid salt, the urea of 0～10 weight part, be warming up to 50～95 ℃, the condensing agent formaldehyde that adds 50～70 weight parts, behind the stirring reaction 4～8 hours, add the alkaline conditioner of 1～10 weight part and the trolamine of 0～2 weight part, cooling and stirring obtains the liquid water reducer to room temperature.
2, the preparation method of a kind of thionamic acid based water reducer as claimed in claim 1 is characterized in that: described diamino benzene sulfonic acid is a Sulphanilic Acid.
3, the preparation method of a kind of thionamic acid based water reducer as claimed in claim 1 is characterized in that: described diamino benzene sulfonic acid salt is sulfanilate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410024351 CN1583649A (en) | 2004-06-15 | 2004-06-15 | Preparing method for aminosulfonic water-reducing agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410024351 CN1583649A (en) | 2004-06-15 | 2004-06-15 | Preparing method for aminosulfonic water-reducing agent |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328202C (en) * | 2005-08-31 | 2007-07-25 | 南京瑞迪高新技术公司 | High efficiency water reducing agent for suppressing alkali-aggregate reaction efficiency and its preparation method |
| CN101885823A (en) * | 2010-06-13 | 2010-11-17 | 深圳市五山建材实业有限公司 | Production method of water reducer synthesized by polymerization |
| CN102086105A (en) * | 2010-12-10 | 2011-06-08 | 马清浩 | Modified naphthalene water reducer and preparation method thereof |
| CN102086104A (en) * | 2010-12-10 | 2011-06-08 | 马清浩 | Modified naphthalene series water reducer and preparation method thereof |
| CN102898059A (en) * | 2012-11-01 | 2013-01-30 | 徐友娟 | High-performance sulfamic acid water reducing agent and preparation method thereof |
| CN103183486A (en) * | 2013-03-01 | 2013-07-03 | 王中 | Amino-sulfonic acid and naphthalene compound water reducing agent and preparation method thereof |
| CN103880319A (en) * | 2013-11-19 | 2014-06-25 | 东南大学 | Chloride concrete admixture and preparation method thereof |
| CN104961375A (en) * | 2015-06-26 | 2015-10-07 | 金陵科技学院 | Carboxyl group-containing modified amino sulfonate high efficiency water reducer preparation method |
| CN105968284A (en) * | 2016-06-08 | 2016-09-28 | 柳州市强威锻造厂 | Sulfamic acid series water reducing agent |
| CN112375193A (en) * | 2020-11-13 | 2021-02-19 | 陶川 | Preparation method of sulfamic acid water reducing agent |
-
2004
- 2004-06-15 CN CN 200410024351 patent/CN1583649A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328202C (en) * | 2005-08-31 | 2007-07-25 | 南京瑞迪高新技术公司 | High efficiency water reducing agent for suppressing alkali-aggregate reaction efficiency and its preparation method |
| CN101885823A (en) * | 2010-06-13 | 2010-11-17 | 深圳市五山建材实业有限公司 | Production method of water reducer synthesized by polymerization |
| CN102086105A (en) * | 2010-12-10 | 2011-06-08 | 马清浩 | Modified naphthalene water reducer and preparation method thereof |
| CN102086104A (en) * | 2010-12-10 | 2011-06-08 | 马清浩 | Modified naphthalene series water reducer and preparation method thereof |
| CN102086104B (en) * | 2010-12-10 | 2012-10-10 | 马清浩 | Modified naphthalene series water reducer and preparation method thereof |
| CN102086105B (en) * | 2010-12-10 | 2012-10-10 | 马清浩 | Modified naphthalene water reducer and preparation method thereof |
| CN102898059A (en) * | 2012-11-01 | 2013-01-30 | 徐友娟 | High-performance sulfamic acid water reducing agent and preparation method thereof |
| CN103183486A (en) * | 2013-03-01 | 2013-07-03 | 王中 | Amino-sulfonic acid and naphthalene compound water reducing agent and preparation method thereof |
| CN103880319A (en) * | 2013-11-19 | 2014-06-25 | 东南大学 | Chloride concrete admixture and preparation method thereof |
| CN104961375A (en) * | 2015-06-26 | 2015-10-07 | 金陵科技学院 | Carboxyl group-containing modified amino sulfonate high efficiency water reducer preparation method |
| CN105968284A (en) * | 2016-06-08 | 2016-09-28 | 柳州市强威锻造厂 | Sulfamic acid series water reducing agent |
| CN112375193A (en) * | 2020-11-13 | 2021-02-19 | 陶川 | Preparation method of sulfamic acid water reducing agent |
| CN112375193B (en) * | 2020-11-13 | 2021-05-11 | 西安龙宾立强环保科技有限公司 | Preparation method of sulfamic acid water reducing agent |
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