CN104072010A - Crack-resistant water-reducing and waterproof compacting agent for concrete and production method thereof - Google Patents
Crack-resistant water-reducing and waterproof compacting agent for concrete and production method thereof Download PDFInfo
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- CN104072010A CN104072010A CN201410237892.7A CN201410237892A CN104072010A CN 104072010 A CN104072010 A CN 104072010A CN 201410237892 A CN201410237892 A CN 201410237892A CN 104072010 A CN104072010 A CN 104072010A
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Abstract
The invention discloses a crack-resistant water-reducing and waterproof compacting agent for concrete and a production method thereof. The crack-resistant water-reducing and waterproof compacting agent for concrete is prepared from the following raw materials in parts by weight: 45-48 parts of high-performance polycarboxylate water reducer, 15-22 parts of ferric trichloride, 5-12 parts of sodium gluconate, 2-6 parts of saccharose, 10-15 parts of water, 0.1-2.0 parts of air entraining agent and 0.05-0.5 part of defoamer. The compacting agent disclosed by the invention can remarkably improve the anti-permeability, reduction, crack resistance, water-reducing rate, waterproofness and compacting effect, effectively inhibit water molecular penetration and remarkably improve the strength. The anti-permeability level of concrete reaches level 12, so that concrete particles are compactly bonded to form a wrappage to prevent permeability, and meanwhile, over 30% of shrinkage can be reduced. Particularly in severe environments, shrinkage can be reduced, and thus the compacting agent is extremely remarkable for effectively controlling the cracking.
Description
Technical field
The present invention relates to a kind of vault, swimming pool, water channel, tunnel, cable trench engineering and the building construction of Highrise buildings and anti-cracking concrete diminishing waterproof compacting agent that building structure waterproof, seepage control is used of being widely used in.Use after this product other waterproof operation that it goes without doing.Concrete poured up at a time.
Background technology
The current waterproof product kind of China is more.There is inorganic salt water-repellent, also have organic water-resisting agent.Inorganic salt water-resisting agent is possibility Corrosion Reinforcement not only, and later stage waterproof effect is bad; Organic water-resisting agent, owing to having bleed effect, has detrimentally affect to concrete strength.In engineering application, most water-resisting agents can strengthen contraction, are the one of the main reasons that causes concrete cracking and shrink excessive.See with physical condition, at present product have a powdery with liquid, but be powder-like product mostly, this product volume is high, generally in 5% left and right, have up to 8%-10%.
Open source literature has been reported some concrete diminishing water-resisting agents, takes passages as follows:
1, Chinese patent; title: a kind of polycarboxylate water-reducer and preparation method thereof; application (patent) number: CN200910245171.X open (bulletin) number: CN101767952A applies for (patent right) people: Tianjin Feilong Concrete Additives Co., Ltd., invention (design) people: Shi Chun; Lee and Sheng summary: a kind of polycarboxylate water-reducer and preparation method thereof.The invention belongs to cement water reducing agent technical field.A kind of polycarboxylate water-reducer, its weight percent consists of: poly carboxylic acid 30-50, rust inhibitor Sodium Nitrite 15-30, air entrapment agent Sodium dodecylbenzene sulfonate 0.1-2.0, water-resisting agent sodium stearate 5-15, defoamer polyether glycol 0.1-0.5, volume stabilizer Tai-Ace S 150 15-40.Its preparation method: add poly carboxylic acid in reactor, control temperature 45-80 DEG C, under agitation condition, rust inhibitor Sodium Nitrite, air entrapment agent Sodium dodecylbenzene sulfonate, water-resisting agent sodium stearate, defoamer polyether glycol, volume stabilizer Tai-Ace S 150, carries out building-up reactions, isothermal reaction 1.5-2.5 hour, obtains polycarboxylate water-reducer.Water reducer of the present invention has that water-reducing rate is high, concrete durability is high, consistency is good, adaptability is good, long service life, and technique has that flow process is simple, the reaction times is short, be convenient to the advantage such as suitability for industrialized production and safely cleaning.
2, Chinese patent; title: title: a kind of collapse protective poly-carboxylic acid water reducing agent and preparation method thereof application (patent) number: CN201010185721.6 open (bulletin) number: CN101830663A applies for (patent right) people: Zhejiang Province Wulong Chemical Co., Ltd, invention (design) people: Zhu Yulian; Wang Jiafeng; Song Yongliang; Zhang Jianfeng; Yang Huifen; Li Qiuping, summary: a kind of collapse protective poly-carboxylic acid water reducing agent and preparation method thereof, is specifically related to a kind of novel poly carboxylic acid series water reducer and synthetic method thereof taking dimethylaminoethyl acrylate methyl ammonia ethyl ester, allyl polyglycol and maleic anhydride as raw material.A kind of collapse protective poly-carboxylic acid water reducing agent, it,, taking dimethylaminoethyl acrylate methyl ammonia ethyl ester 5%～60%, maleic anhydride 15%～60%, allyl polyglycol 15%-70% as raw material, under the effect of initiator, obtains product by aqueous solution polymerization.The invention also discloses above-mentioned collapse protective poly-carboxylic acid water reducing agent preparation method.Advantage of the present invention: 1. polymkeric substance water-reducing rate is high, slump retaining is good.2. preparation technology of the present invention is single stage method, and reaction conditions is easy to control, and reaction time is short, simple to operate, and polymerization in the aqueous solution, pollution-free.3. reaction conditions gentleness, low for equipment requirements.
3, Chinese patent, title: building concrete shrinkage type water reducer application (patent) number: the CN201210526725.5 applying date: 2012.12.10 open (bulletin) number: CN102964529A applies for (patent right) people: Changshu Suzhou branch office of Jian Gong construction group company limited address: No. 183, Ting Lan lane, Suzhou City Industrial Park District, Jiangsu Province, summary: a kind of building concrete shrinkage type water reducer, it is a kind of polycarboxylate high-efficiency water-reducing agent, described building concrete is first in water, to add maleic anhydride with shrinkage type water reducer, diethylene glycol monobutyl ether, the trimethyl carbinol and catalyzer, then be heated to 120 DEG C, be incubated and be cooled to 80 DEG C after 4 hours, then add initiator, methacrylic acid and prenol Soxylat A 25-7, then continue insulation and be cooled to 35 DEG C after 2 hours, use again neutralizing agent neutralization solution, be 7-8 and get final product to pH value.By the way, building concrete of the present invention can improve water-reducing rate and the dispersiveness of water reducer effectively with shrinkage type water reducer, increase concrete intensity, make concrete there is good slump retaining, mobility and splitting resistance, better with concrete consistency.
4, title: Chinese patent, composite polycarboxylic acid water reducing agent, application (patent) number: CN201110147891.X open (bulletin) number: CN102249591A applies for (patent right) people: China State Construction Engineering Commercial Concrete; Commercial Concrete Co., Ltd.Of China Construction Third Engineering Bureau; Invention (design) people: the Han Zhoubing of China Construction. Third Engineering Bureau Corp., Ltd.); Zheng Guangjun; Xiong Xiaohui; Huang Bo; Liu Hangyu; Xiao Hongjun; Ji Xiaohui; Shen Hao; Jiang Xinfeng; Tai is big; Li Dong comes; Summary: a kind of water reducer.Composite polycarboxylic acid water reducing agent, it is characterized in that: it is prepared from by high performance water reducing agent of polyocarboxy acid, retardant, functional agent, sanitas and water, the shared mass percent of each component is: high performance water reducing agent of polyocarboxy acid 8-28.6%, retardant 0.5-7.36%, functional agent 0.001-0.15%, sanitas 0.01-0.65%, water are surplus, and the shared mass percent sum of each component is 100%.Be applied in fresh concrete, scribble after the template of used oil or rosined soap class in dismounting, the concrete surface after sclerosis is smooth, and bubble obviously reduces, and meets construction requirement completely.The invention solves the more difficult problem of interior formwork after releasing agents such as using used oil or rosined soap class.
The raw material complexity that above-mentioned disclosed the reinforcement of concrete shrinkage type water reducer has, cost is higher, and what have is not fine through overtesting effect of prestressed.
Summary of the invention
In view of the deficiency of above-mentioned prior art existence, the object of this invention is to provide a kind ofly significantly improve that impermeability, reducing property, splitting resistance, water-reducing rate are large, the anti-cracking concrete diminishing waterproof compacting agent of water-repellancy, closely knit effect, and only need add this product needn't repeatedly add admixture in concrete.Product is liquid, is convenient to add, and low alkalinity, does not corrode, without inflammable and explosive property, nontoxicity.
The object of the present invention is achieved like this:
A kind of anti-cracking concrete diminishing waterproof compacting agent, is characterized in that: it comprises the raw material of following parts by weight, and wherein, it comprises the raw material of following parts by weight, wherein, and high-performance polycarboxylic acids water reducing agent 45-48 part; Iron trichloride 15-22 part; Sunmorl N 60S 5-12 part; Sucrose 2-6 part; Water 10-15 part; Air entrapment agent 0.1-2.0; Defoamer 0.05-0.5; Described defoamer is silicone oil; Described air entrapment agent is sodium abietate.
Described high-performance polycarboxylic acids water reducing agent (Polycarboxylate Superplasticizer), it is a kind of cement dispersants during cement concrete uses, the present invention adopts the high-performance polycarboxylic acids water reducing agent of two types, a kind of taking main chain as methacrylic acid, side chain is hydroxy-acid group and MPEG (Methoxy polyethylene glycol), polyester type structure; Another for main chain be polyacrylic acid, side chain is Vinyl alcohol polyethylene glycol, polyether-type structure; The solid content of high-performance polycarboxylic acids water reducing agent is 40%.
The production method of anti-cracking concrete diminishing waterproof compacting agent of the present invention, can be first iron trichloride to be put into water, under whipped state, make it to be dissolved in the water completely, allow after its naturally cooling and add Sunmorl N 60S and sucrose, add again high-performance polycarboxylic acids water reducing agent, finally add air entrapment agent and defoamer to mix, enter in finished product packing tank, test package, obtains product.
The beneficial effect of anti-cracking concrete diminishing waterproof compacting agent of the present invention:
1, can significantly improve that impermeability, reducing property, splitting resistance, water-reducing rate are large, water-repellancy, closely knit effect.In concrete, only need add this product needn't repeatedly add other admixture.Product is that liquid is convenient to add and can be effectively stoped water molecules infiltration, significantly improve intensity, impervious rank reaches 12 grades, can make between concrete particle bonding more closely and form parcel and reach the impervious while and can reduce and shrink more than 30%, especially under severe environment, can reduce contraction, this is very important for effective control cracking; Can increase and decrease as requested volume.This product is by different labels concrete and different slump requirement, recommends the 0.21%-0.22% that volume is gelling material, and to detect volume be gelling material 0.21%.It is a kind of compound product, has several functions.
2, the present invention selects air entrapment agent and defoamer effect are good, and cost performance is high.
The air entrapment agent that the present invention selects and defoamer effect are good, particularly adopt sodium abietate, and cost is low, can obtain resisting the material of water molecules infiltration, make in addition concrete produce certain dope, are not easy cracking.
Embodiment:
Below in conjunction with embodiment, the present invention is made the following instructions.
Anti-cracking concrete diminishing waterproof compacting agent embodiment:
Embodiment 1:
(1) raw material and weight:
High-performance polycarboxylic acids water reducing agent 45 weight parts of polyester type solid content 40%; Iron trichloride weight part; Sunmorl N 60S 5 weight parts; Sucrose 3 weight parts; Water 15 weight parts; Defoamer silicone oil 0.1 weight part; Air entrapment agent sodium abietate is 0.5 weight part.
(2) make
First iron trichloride is put into water, under stirring state, make it to be dissolved in the water completely, allow after its naturally cooling and add Sunmorl N 60S and sucrose, then add high-performance polycarboxylic acids water reducing agent, finally add air entrapment agent and defoamer.Drop in container and enter and mix to whole dissolvings by the metering of said sequence proportioning raw materials, enter in finished product packing tank, test package, obtains product.
Embodiment 2:
(1) raw material and weight:
High-performance polycarboxylic acids water reducing agent 48 weight parts of polyester type solid content 40%; Iron trichloride 18 weight parts; Sunmorl N 60S 10 weight parts; Sucrose 2 weight parts; Water 13 weight parts; Defoamer silicone oil 0.5 weight part; Air entrapment agent sodium abietate is 2 weight parts.
(2) make
First iron trichloride is put into water, under stirring state, make it to be dissolved in the water completely, allow after its naturally cooling and add Sunmorl N 60S and sucrose, then add high-performance polycarboxylic acids water reducing agent, finally add defoamer and air entrapment agent.Drop in container and enter and mix to whole dissolvings by the metering of said sequence proportioning raw materials, enter in finished product packing tank, test package, obtains product.
Embodiment 3:
(1) raw material and weight:
High-performance polycarboxylic acids water reducing agent 47 weight parts of polyether-type solid content 40%; Iron trichloride 14 weight parts, Sunmorl N 60S 11 weight parts; Sucrose 6 weight parts; Water 15 weight parts; Defoamer silicone oil 0.2 weight part; Air entrapment agent sodium abietate is 0.5 weight part.
(2) make
First iron trichloride is put into water, under stirring state, make it to be dissolved in the water completely, allow after its naturally cooling and add Sunmorl N 60S and sucrose, then add high-performance polycarboxylic acids water reducing agent, finally add air entrapment agent and defoamer.Drop in container and enter and mix to whole dissolvings by the metering of said sequence proportioning raw materials, enter in finished product packing tank, test package, obtains product.
Embodiment 4:
(1) raw material and weight:
High-performance polycarboxylic acids water reducing agent 45 weight parts of polyester type solid content 40%; Iron trichloride 16 weight parts; Sunmorl N 60S 5 weight parts; Sucrose 2 weight parts; Water 11 weight parts.
(2) make
First iron trichloride is put into water, under stirring state, make it to be dissolved in the water completely, allow after its naturally cooling and add Sunmorl N 60S and sucrose, then add high-performance polycarboxylic acids water reducing agent.Drop in container and enter and mix to whole dissolvings by the metering of said sequence proportioning raw materials, enter in finished product packing tank, test package, obtains product.
Of the present inventionly can require to allocate according to site operation, consumption also adds according to concrete situation.
Application Example 1(waterproof):
The inventor tests the DH-HPWR high performance water proof agent of embodiment 1,2,3,4 and the production of purchase sea, Guangxi building materials company limited, and the concrete waterproofer of producing than sea, Guangxi building materials company limited of acetonideexample 1,3 is good; 2 water resistance is the same with the agent of DH-HPWR high performance water proof; The concrete waterproofer that sea, the ratio Guangxi building materials company limited of embodiment 4 produces is poor.
Application Example 2(diminishing):
The inventor tests the cement water reducing agent of embodiment 1,2,3 and the production of purchase sea, Guangxi building materials company limited, and the cement water reducing agent that the water-reducing effect of acetonideexample 1,2,3 is produced than sea, Guangxi building materials company limited is good; The concrete waterproofer that sea, the ratio Guangxi building materials company limited of embodiment 4 produces is poor.
Application Example 3:
Yulin City of Guangxi Zhuang Autonomous unit builds a tunnel, constructing tunnel has adopted the anti-cracking concrete diminishing waterproof compacting agent of the embodiment of the present invention 1,2,3, build up latter 2 years, heavy rain several times, massif side has scenery with hills and waters to flow out, but tunnel does not have Seepage, illustrate that anti-cracking concrete diminishing waterproof compacting agent of the present invention is effective.
The key technical indexes of the present invention:
Illustrate, the compressive strength rate of concrete of the present invention or mortar, shrinkage ratio, infiltration all meet national standard and industry standard from technical indicators such as degree compare.
Claims (3)
1. an anti-cracking concrete diminishing waterproof compacting agent, is characterized in that: it comprises the raw material of following parts by weight, wherein, and high-performance polycarboxylic acids water reducing agent 45-48 part; Iron trichloride 15-22 part; Sunmorl N 60S 5-12 part; Sucrose 2-6 part; Water 10-15 part; Air entrapment agent 0.1-2.0; Defoamer 0.05-0.5;
Described high-performance polycarboxylic acids water reducing agent is polyester type structure; Or polyether-type structure; Solid content is 40%;
Described air entrapment agent is sodium abietate.
2. anti-cracking concrete diminishing waterproof compacting agent according to claim 1, is characterized in that: described defoamer is silicone oil.
3. the production method of anti-cracking concrete diminishing waterproof compacting agent claimed in claim 1, it is characterized in that: first iron trichloride is put into water, under whipped state, make it to be dissolved in the water completely, allow after its naturally cooling and add Sunmorl N 60S and sucrose, add again high-performance polycarboxylic acids water reducing agent, finally add air entrapment agent and defoamer to mix, enter in finished product packing tank, test package, obtains product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410237892.7A CN104072010B (en) | 2014-06-02 | 2014-06-02 | Crack resistance type concrete diminishing waterproof compacting agent and production method thereof |
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| CN201410237892.7A CN104072010B (en) | 2014-06-02 | 2014-06-02 | Crack resistance type concrete diminishing waterproof compacting agent and production method thereof |
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| CN104072010A true CN104072010A (en) | 2014-10-01 |
| CN104072010B CN104072010B (en) | 2016-08-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105314919A (en) * | 2015-11-26 | 2016-02-10 | 广州浪淘砂建材有限公司 | Water reducing agent used for conducting wet mixing on cement mortar |
| CN110395938A (en) * | 2019-08-30 | 2019-11-01 | 广西北海市圣峰建材科技有限公司 | A kind of preparation method of the impervious anti-crack concrete additive of micro-nano hole |
| CN111042206A (en) * | 2019-12-27 | 2020-04-21 | 广西大胡子防水科技有限公司 | Waterproof construction method for underground engineering node |
| CN112500050A (en) * | 2020-12-17 | 2021-03-16 | 台州东部建材科技有限公司 | High-performance fair-faced concrete and preparation method and construction process thereof |
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| CN101045620A (en) * | 2007-03-26 | 2007-10-03 | 李建红 | Multifunction anti-crack water-proof agent for concrete and preparation method |
| CN101781100A (en) * | 2009-01-20 | 2010-07-21 | 同济大学 | Anti-erosion agent for concrete, preparation method and application thereof |
| CN102531458A (en) * | 2010-12-09 | 2012-07-04 | 苏笮斌 | Anti-crack and anti-corrosion plasticizer composition and preparation method thereof |
| CN102875045A (en) * | 2012-10-25 | 2013-01-16 | 上海建工材料工程有限公司 | Durability reinforced material of concrete as well as preparation method and application thereof |
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2014
- 2014-06-02 CN CN201410237892.7A patent/CN104072010B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101045620A (en) * | 2007-03-26 | 2007-10-03 | 李建红 | Multifunction anti-crack water-proof agent for concrete and preparation method |
| CN101781100A (en) * | 2009-01-20 | 2010-07-21 | 同济大学 | Anti-erosion agent for concrete, preparation method and application thereof |
| CN102531458A (en) * | 2010-12-09 | 2012-07-04 | 苏笮斌 | Anti-crack and anti-corrosion plasticizer composition and preparation method thereof |
| CN102875045A (en) * | 2012-10-25 | 2013-01-16 | 上海建工材料工程有限公司 | Durability reinforced material of concrete as well as preparation method and application thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105314919A (en) * | 2015-11-26 | 2016-02-10 | 广州浪淘砂建材有限公司 | Water reducing agent used for conducting wet mixing on cement mortar |
| CN110395938A (en) * | 2019-08-30 | 2019-11-01 | 广西北海市圣峰建材科技有限公司 | A kind of preparation method of the impervious anti-crack concrete additive of micro-nano hole |
| CN111042206A (en) * | 2019-12-27 | 2020-04-21 | 广西大胡子防水科技有限公司 | Waterproof construction method for underground engineering node |
| CN112500050A (en) * | 2020-12-17 | 2021-03-16 | 台州东部建材科技有限公司 | High-performance fair-faced concrete and preparation method and construction process thereof |
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| CN104072010B (en) | 2016-08-17 |
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Effective date of registration: 20190904 Address after: 530300, the Guangxi Zhuang Autonomous Region, Nanning, Hengxian Yang town to house Tuen Patentee after: Mo Mingxin Address before: 537100 No. 3 Shop, Unit 1287, 11 Hecheng Road Water Supply Zone, Guigang City, Guangxi Zhuang Autonomous Region Patentee before: GUANGXI GUIGANG JINTONG NEW BUILDING MATERIAL SCIENCE & TECHNOLOGY Co.,Ltd. |
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