CN103121805B - High-performance concrete anti-cracking high efficiency water reducing agent - Google Patents
High-performance concrete anti-cracking high efficiency water reducing agent Download PDFInfo
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- CN103121805B CN103121805B CN201310035720.7A CN201310035720A CN103121805B CN 103121805 B CN103121805 B CN 103121805B CN 201310035720 A CN201310035720 A CN 201310035720A CN 103121805 B CN103121805 B CN 103121805B
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Abstract
The invention relates to a high-performance concrete anti-cracking high efficiency water reducing agent which is prepared from the following raw materials in parts by mass: 190-200 parts of sulfanilic acid, 16-26 parts of melamine, 12-17 parts of catechol, 93-103 parts of phenol, 190-210 parts of 37 wt% formaldehyde solution, 50-60 parts of 30 wt% NaOH solution, 5-7 parts of nonylphenol polyethenoxy ether, 5-7 parts of fatty alcohol polyethenoxy ether, 25-35 parts of 98 wt% citric acid solution, 4-6 parts of aluminum sulfate and 350-380 parts of water. The invention has the characteristics of high water reducing rate and strong adaptability, and is applicable to commercial concrete, high-strength high-performance concrete, mass concrete, special reinforced concrete and construction engineering hydro concrete.
Description
Technical field
The present invention relates to the admixture technical field in material of construction, relate in particular to high performance concrete cracking resistance high efficiency water reducing agent.
Background technology
Cement water reducing agent, as a kind of type material, not only can improve the level of Building technology, improves concrete performance, can also save a large amount of cement and manpower and materials, has higher value, and this has been admitted facts.
Yet, owing to producing the required starting material of high performance concrete, there is strict requirement, the silt content of sand, stone or the fineness of flyash and the amount of making a fire all have strict requirement, so the high efficiency water reducing agent for construction high performance concrete requires strict too, no matter be the water-reducing rate of water reducer, or the bleed composition of water reducer all can have influence on the quality of high performance concrete.
High efficiency water reducing agent performance is in the market single, only has diminishing function, and different for the cement adaptability of different manufacturers, all must could change its adaptability through composite other material, and is difficult to control.
Summary of the invention
Technical problem to be solved by this invention is to provide high, the adaptable high performance concrete cracking resistance of a kind of water-reducing rate high efficiency water reducing agent.
For addressing the above problem, high performance concrete cracking resistance high efficiency water reducing agent of the present invention, is characterized in that: this water reducer is comprised of the raw material of following mass parts: 190 ~ 210 parts of the formaldehyde solutions that 190 ~ 200 parts of Sulphanilic Acid, 16 ~ 26 parts of trimeric cyanamides, 12 ~ 17 parts of catechols, 93 ~ 103 parts of phenol, mass concentration are 37%, 5 ~ 7 parts of 5 ~ 7 parts of 50 ~ 60 parts of NaOH solution, polyoxyethylene nonylphenol ethers, the fatty alcohol-polyoxyethylene ether that mass concentration is 30%, 4 ~ 6 parts, 25 ~ 35 parts of citric acid solutions, Tai-Ace S 150,350 ~ 380 parts, water that mass concentration is 98%.
The preparation method of high performance concrete cracking resistance high efficiency water reducing agent as above, comprises the following steps:
(1) by proportioning, weigh;
(2) water, Sulphanilic Acid, trimeric cyanamide, catechol, phenol are added respectively in reactor, after stirring, obtain pH value and be 4.5 ~ 5.5 mixture; Then described mixture is heated to 80 ~ 90 ℃, and in 1 ~ 3 hour, to drip described mass concentration be 37% formaldehyde solution, insulation reaction 3 ~ 5 hours, obtains reaction mass;
(3) described reaction mass is cooled to after 30 ~ 40 ℃, to add described mass concentration be 30% NaOH solution, stirs and make pH value to 8.5 ~ 10 of described reaction mass; Then add successively citric acid solution, Tai-Ace S 150 that polyoxyethylene nonylphenol ether, fatty alcohol-polyoxyethylene ether, described mass concentration are 98%, stir and obtain brown liquid product, the solid content of this solution is 35% ~ 38%.
The application of high performance concrete cracking resistance high efficiency water reducing agent as above in concrete, is characterized in that: it is 0.4 ~ 1.0% of gelling material quality that this water reducer calculates its volume by solid content.
The present invention compared with prior art has the following advantages:
1, the present invention combines advantage amino and melamine high-efficiency water-reducing agent, has improved bleeding, simultaneously under low-dosage, folding is admittedly containing 0.3 ~ 0.6, its water-reducing rate can reach 25 ~ 35%, its concrete pressure-proof and snap-resistent is increased substantially, and only starch degree of mobilization 240 ~ 280mm.
2, owing to having used polyoxyethylene nonylphenol ether, fatty alcohol-polyoxyethylene ether in the present invention, therefore, the present invention can improve concrete mobility significantly, improve large ultimate compression strength and the weather resistance of coagulation, concrete slump 2h loss is less than 10%, and to the reinforcing bar non-corroding effect in concrete.
3, owing to having used citric acid in the present invention, therefore, the present invention has extremely strong adaptability, and various cement and admixture are had to fabulous intermiscibility, and the slow setting time is easy to control, and to temperature strong adaptability, not because the temperature difference changes greatly.
4, owing to having used Tai-Ace S 150 in the present invention, therefore, the present invention has extremely strong dispersing property to cement and mineral admixture consumption, significantly improve the crack-resistant performance of concrete after sclerosis, reduce shrinkage and creep, be applicable to commerical ready-mixed concrete, high-strength high-performance concrete, mass concrete, special Steel Concrete, structures engineering water earth concrete.
5, in preparation method of the present invention, reactions steps is few, and reinforced rear temperature of reaction is low, convenient operation, and energy consumption is low.
6, the present invention Lanzhou national petroleum reserve base project, in and practical application in the engineering construction of real estate base concrete, the Shi Er of PetroChina Company Limited. street Housing Project Groundwork Concrete Engineering, 5,000,000 tons of device concrete workses of PetroChina Company Limited., effect is remarkable, has effectively overcome the problem of the dry shrinkage crack of mass concrete.
Embodiment
embodiment 1high performance concrete cracking resistance high efficiency water reducing agent, this water reducer is comprised of the raw material of following mass parts: 200 parts of the formaldehyde solutions that 195 parts of Sulphanilic Acid, 21 parts of trimeric cyanamides, 12 parts of catechols, 98 parts of phenol, mass concentration are 37%, 6 parts of 6 parts of 55 parts of NaOH solution, polyoxyethylene nonylphenol ethers, the fatty alcohol-polyoxyethylene ether that mass concentration is 30%, 4 parts, 25 parts of citric acid solutions, Tai-Ace S 150,380 parts, water that mass concentration is 98%.
The preparation method of this high performance concrete cracking resistance high efficiency water reducing agent, comprises the following steps:
(1) by proportioning, weigh.
(2) water, Sulphanilic Acid, trimeric cyanamide, catechol, phenol are added respectively in reactor, after stirring, obtain pH value and be 4.5 ~ 5.5 mixture; Then mixture is heated to 80 ~ 90 ℃, and in 1 ~ 3 hour, to drip mass concentration be 37% formaldehyde solution, insulation reaction 3 ~ 5 hours, obtains reaction mass.
(3) reaction mass is cooled to after 30 ~ 40 ℃, to add mass concentration be 30% NaOH solution, stirs and make pH value to 8.5 ~ 10 of reaction mass; Then add successively citric acid solution, Tai-Ace S 150 that polyoxyethylene nonylphenol ether, fatty alcohol-polyoxyethylene ether, mass concentration are 98%, stir and obtain brown liquid product, the solid content of this solution is 35% ~ 38%.
embodiment 2high performance concrete cracking resistance high efficiency water reducing agent, this water reducer is comprised of the raw material of following mass parts: 190 parts of the formaldehyde solutions that 200 parts of Sulphanilic Acid, 26 parts of trimeric cyanamides, 17 parts of catechols, 93 parts of phenol, mass concentration are 37%, 5 parts of 5 parts of 60 parts of NaOH solution, polyoxyethylene nonylphenol ethers, the fatty alcohol-polyoxyethylene ether that mass concentration is 30%, 5 parts, 30 parts of citric acid solutions, Tai-Ace S 150,370 parts, water that mass concentration is 98%.
The preparation method of this high performance concrete cracking resistance high efficiency water reducing agent is same
embodiment 1.
embodiment 3high performance concrete cracking resistance high efficiency water reducing agent, this water reducer is comprised of the raw material of following mass parts: 210 parts of the formaldehyde solutions that 190 parts of Sulphanilic Acid, 16 parts of trimeric cyanamides, 14 parts of catechols, 103 parts of phenol, mass concentration are 37%, 7 parts of 7 parts of 50 parts of NaOH solution, polyoxyethylene nonylphenol ethers, the fatty alcohol-polyoxyethylene ether that mass concentration is 30%, 6 parts, 35 parts of citric acid solutions, Tai-Ace S 150,350 parts, water that mass concentration is 98%.
The preparation method of this high performance concrete cracking resistance high efficiency water reducing agent is same
embodiment 1.
Above-mentioned
embodiment 1 ~ 3the application of middle high performance concrete cracking resistance high efficiency water reducing agent in concrete refers to: it is 0.4 ~ 1.0% of gelling material quality that this water reducer calculates its volume by solid content.
Claims (2)
1. high performance concrete cracking resistance high efficiency water reducing agent, is characterized in that: this water reducer is comprised of the raw material of following mass parts: 190 ~ 210 parts of the formaldehyde solutions that 190 ~ 200 parts of Sulphanilic Acid, 16 ~ 26 parts of trimeric cyanamides, 12 ~ 17 parts of catechols, 93 ~ 103 parts of phenol, mass concentration are 37%, 5 ~ 7 parts of 5 ~ 7 parts of 50 ~ 60 parts of NaOH solution, polyoxyethylene nonylphenol ethers, the fatty alcohol-polyoxyethylene ether that mass concentration is 30%, 4 ~ 6 parts, 25 ~ 35 parts of citric acid solutions, Tai-Ace S 150,350 ~ 380 parts, water that mass concentration is 98%;
shouldthe preparation method of high performance concrete cracking resistance high efficiency water reducing agent, comprises the following steps:
(1) by proportioning, weigh;
(2) water, Sulphanilic Acid, trimeric cyanamide, catechol, phenol are added respectively in reactor, after stirring, obtain pH value and be 4.5 ~ 5.5 mixture; Then described mixture is heated to 80 ~ 90 ℃, and in 1 ~ 3 hour, to drip described mass concentration be 37% formaldehyde solution, insulation reaction 3 ~ 5 hours, obtains reaction mass;
(3) described reaction mass is cooled to after 30 ~ 40 ℃, to add described mass concentration be 30% NaOH solution, stirs and make pH value to 8.5 ~ 10 of described reaction mass; Then add successively citric acid solution, Tai-Ace S 150 that polyoxyethylene nonylphenol ether, fatty alcohol-polyoxyethylene ether, described mass concentration are 98%, stir and obtain brown liquid product, the solid content of this solution is 35% ~ 38%.
2. the application of high performance concrete cracking resistance high efficiency water reducing agent as claimed in claim 1 in concrete, is characterized in that: it is 0.4 ~ 1.0% of gelling material quality that this water reducer calculates its volume by solid content.
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| CN201310035720.7A CN103121805B (en) | 2013-01-30 | 2013-01-30 | High-performance concrete anti-cracking high efficiency water reducing agent |
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| CN201310035720.7A CN103121805B (en) | 2013-01-30 | 2013-01-30 | High-performance concrete anti-cracking high efficiency water reducing agent |
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| CN103121805B true CN103121805B (en) | 2014-11-05 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103865006B (en) * | 2014-02-25 | 2016-09-14 | 刘志勇 | A kind of polycarboxylate water-reducer with rust prevention function and preparation method thereof |
| CN104402291A (en) * | 2014-11-04 | 2015-03-11 | 张桂华 | High-efficiency composite concrete water reducing agent |
| CN106049504B (en) * | 2016-06-12 | 2018-04-13 | 青岛海川建设集团有限公司 | Using three-dimensional effect to Pile-Anchor Supporting for Deep Excavation system corner structure optimized construction method |
| CN106188455B (en) * | 2016-07-25 | 2018-01-30 | 抚顺东科精细化工有限公司 | A kind of synthetic method of bisphenol A polyethenoxy ether modified sulfamate water reducer |
| CN107640922B (en) * | 2017-10-13 | 2020-05-22 | 浙江雄宇混凝土构件有限公司 | Additive for improving durability of concrete and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101003424A (en) * | 2006-12-05 | 2007-07-25 | 西安建筑科技大学 | Concrete superplasticizer in amino carboxyl classes, and synthetic method |
| CN101723615A (en) * | 2009-12-18 | 2010-06-09 | 江苏特密斯混凝土外加剂有限公司 | Method for preparing novel sulfamic acid high-efficiency concrete water reducing agent |
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- 2013-01-30 CN CN201310035720.7A patent/CN103121805B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101003424A (en) * | 2006-12-05 | 2007-07-25 | 西安建筑科技大学 | Concrete superplasticizer in amino carboxyl classes, and synthetic method |
| CN101723615A (en) * | 2009-12-18 | 2010-06-09 | 江苏特密斯混凝土外加剂有限公司 | Method for preparing novel sulfamic acid high-efficiency concrete water reducing agent |
Non-Patent Citations (2)
| Title |
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| 李海波 等.外加剂的发展现状及其在混凝土路面工程中的应用.《湖南交通科技》.2009,第35卷(第4期),第79-82页. * |
| 邱学青 等.氨基磺酸系高效减水剂的研究现状与发展方向.《化工进展》.2003,第22卷(第4期),第336-340页. * |
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