CN103011678A - Liquid composite air-entraining agent for mortar - Google Patents
Liquid composite air-entraining agent for mortar Download PDFInfo
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- CN103011678A CN103011678A CN2012105511930A CN201210551193A CN103011678A CN 103011678 A CN103011678 A CN 103011678A CN 2012105511930 A CN2012105511930 A CN 2012105511930A CN 201210551193 A CN201210551193 A CN 201210551193A CN 103011678 A CN103011678 A CN 103011678A
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- mortar
- liquid composite
- entraining agent
- composite air
- air entraining
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Abstract
The invention relates to a liquid composite air-entraining agent for mortar. The technical problem to be solved is to provide a liquid composite air-entraining agent, having the characteristics of capabilities of improving the workability of the mortar and prolonging the service life of the mortar. The adopted technical scheme is as follows: the liquid composite air-entraining agent for the mortar comprises the following components in part by weight: l00 parts of water, 15-45 parts of ethoxylated alkyl sodium sulfate, 1-10 parts of foam stabilizer and 0.5-5 parts of cellulose ether, or l00 parts of water, 20-35 parts of ethoxylated alkyl sodium sulfate, 2-8 parts of foam stabilizer and 1-3 parts of cellulose ether.
Description
Technical field
The invention belongs to building material technical field, be specifically related to a kind of mortar liquid composite air entraining agent.
Background technology
The exploitation of China's air entrapment agent is since nineteen fifty; At first developed colophonium pyrolytic polymer class air entrapment agent, the air entrapment agents such as rosined soap, OP emulsifying agent, triterpenoid saponin occur in succession subsequently.Air entrapment agent is the scope of metal surface promoting agent also, originally widely apply at daily use chemicals washing field tensio-active agent, negatively charged ion such as sodium alkyl benzene sulfonate, sodium lauryl sulphate, ethoxylated alkyl sulfate, alpha-olefin sodium sulfonate, nonionic such as fatty diglycollic amide, fatty alcohol-polyoxyethylene ether, amphoterics such as fatty amide propyl dimethyl oxidation amine etc.; Because output is large, raw material is easy to get, reasonable price, used by domestic each mortar additive producer widely at present.
Air entrapment agent has forming process and steady bubble effect; Add air entrapment agent in the mortar, can be stabilized in the bubble that becomes in the mortar mixture in the mortar to the air that is involved in the mechanical stirring process in the liquid phase, thereby improve the workability of mortar, increase the service life, simultaneously general air entrapment agent also has water-reducing effect concurrently.Pore forming material is generally selected negatively charged ion, and the above-mentioned several negatively charged ion that exemplify all have good foaming effect; The sodium alkyl benzene sulfonate bubble is large, poor stability, to calcium, magnesium ion responsive (anti-hard water is poor); Although the sodium lauryl sulphate bubble is tiny, the same not anti-calcium with sodium alkyl benzene sulfonate, magnesium ion.Also there is research to think that some anion surfactants can generate calcium salt with calcium hydroxide effect in the mortar solution, these precipitate distribution are on the membranous wall of bubble, increased on the one hand the intensity of foam, increased on the other hand the viscosity of foam, stability for bubble has certain effect, greatly be affected but initial lathering property is inevitable, certainly will will increase the consumption of air entrapment agent.Fatty alcohol-polyoxyethylene ether, fatty diglycollic amide, fatty amide propyl dimethyl oxidation amine etc. generally do not use separately in the mortar air entrapment agent, but produce synergy as suds-stabilizing agent and anion surfactant, it is thereby that the repulsive force that reduces liquid film anion surfactant anionic group is realized steady bubble that such material surely steeps mechanism, but the steady bubble effect in this complex system of mortar is general.
In addition, according to the problem of use habit, domestic mortar additive producer is general all makes dry powder to product, conventional way be mixs such as tensio-active agent, ether of cellulose in the auxiliary materials such as flyash, yellow sand.And at present commercially available ethoxylated alkyl sulfate is common be 70% actives paste specification, alpha-olefin sodium sulfonate common be that the liquid product of 35% actives, fatty diglycollic amide are viscous liquid, the most commercial tensio-active agent generally is liquid or thickness paste specification (generally only have a small amount of be incorporated into auxiliary material in the middle of just can make powder-like product), cause effective constituent low, increased packing and transportation cost.Although the sodium alkyl benzene sulfonate, alpha-olefin sodium sulfonate of a small amount of powdery are also arranged in supply on the market, on the high side.Make in addition powder-like product, dust pollution is larger during production, and mixing equipment is required height, not so causes easily product effective constituent skewness.When temperature was low, powder-like product used at construction site Jia Shui, sand, cement mix, and effective constituent rapidly dispersing and dissolving causes result of use not good in water.
Summary of the invention
The objective of the invention is to overcome the defective that exists in the background technology, a kind of mortar workability of improving is provided, prolong the mortar liquid composite air entraining agent in work-ing life.
The present invention solves the problems of the technologies described above the technical scheme that adopts:
A kind of mortar liquid composite air entraining agent is comprised of following composition and corresponding weight part:
Described mortar liquid composite air entraining agent is comprised of following composition and corresponding weight part:
Described mortar liquid composite air entraining agent is comprised of following composition and corresponding weight part:
The alkyl chain of the ethoxylated alkyl sulfate described in the present invention is 11-16, and average ethoxymer distribution is 1-3.
Suds-stabilizing agent described in the present invention is the mixture of a kind of or described two kinds of arbitrary proportions in polyvinyl alcohol, the polyoxyethylene glycol.
Ether of cellulose described in the present invention is the mixture of a kind of or described two kinds of arbitrary proportions in hydroxypropyl methyl cellulose ether, hydroxyethylmethyl-cellulose ether, the hydroxyethyl ether cellulose.
Preparation method of the present invention is: water is dropped into be heated to 35-50 ℃ in the reactor, add suds-stabilizing agent, stirred 1 hour; Then under whipped state, add ethoxylated alkyl sulfate, continue to stir 4-6 hour, then add in batches on a small quantity ether of cellulose, treat that all material Monodisperseds are dissolved in the water, can obtain the liquid composite air entraining agent of the transparent homogeneous of certain viscosity.
Ethoxylated alkyl sulfate among the present invention is a kind of anion surfactant, as bleed and diminishing component, see it is that alkyl chain at sodium alkyl sulfate has embedded the polyoxyethylene ether group on the structure, existing sodium alkyl sulfate rises and soaks, bubble is tiny, the uniform characteristics of bubble, the performance that the anti-hard water of general nonionogenic tenside is also arranged is highly suitable in the mortar and uses.Polyvinyl alcohol, polyoxyethylene glycol can increase the thickness of bubble chamber film, mortar fiddle with parking period in delay bubble and break, escape.Ether of cellulose can reduce the mortar bleeding rate as water-holding agent common in the construction industry, with polyvinyl alcohol, polyoxyethylene glycol use certain synergy is arranged, and can improve the viscosity of gas foam, reduces bubbly flow, thereby has certain steady bubble effect.
Advantage of the present invention and effect are as follows:
1) all raw material all is the matured product of commercially available a large amount of supplies, more easily buying.
2) production technique is simple, easy to operate.
3) good, the steady bubble of foaming effect is better, and it is little to directly translate into mortar denseness mensuration loss when parking.
4) incorporation is low, only is the 0.05%-0.1% of cement weight.
5) water-reducing rate is more than 30%.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail, but they are not limitation of the invention.
Test raw material and equipment that the present invention uses are as follows:
The P.C325 composite Portland cement: Hangzhou Yun Feng Cement Co., Ltd is produced;
China's iso standard sand: Xiamen Aisiou Standard Sand Co., Ltd produces;
The planetary glue sand agitator of JJ-5 type: Shaoxing Kente Mechanical ﹠ Electrical Co., Ltd. produces;
SZ-145 molding sand slurry consistometer: a day Beijing-Tianjin profit instrument plant produces.
Are embodied in foaming and the foam stability energy of air entrapment agent in the workability of mortar and work-ing life, concrete application can be adopted the consistometric value of measuring after mortar has stirred and parked for some time.
Embodiment 1
It is 25 ± 1% the aqueous solution that mortar liquid composite air entraining agent, fetch water by weight 1 part of 100 part, 29 parts of ethoxylated alkyl sulfates, 4 parts of polyoxyethylene glycol, hydroxypropyl methyl cellulose ether are mixed with solid content.
Get the Chinese iso standard sand of 2000 grams, 200 gram P.C325 composite Portland cements, 250 gram water and 0.15 gram by the air entrapment agent of above-mentioned weight part preparation, pressing auto-programming at the planetary glue sand agitator of JJ-5 type stirred 240 seconds, measuring denseness is 87 millimeters, this mortar that stirs is parked and was again measured denseness in 10 minutes and 20 minutes, and the denseness rate of loss is respectively 8.0% and 13.8%.
Application test is in the situation that does not add this air entrapment agent simultaneously, and the water consumption that reach identical initial consistency (87 millimeters) is 370 grams; Learn: water-reducing rate of the present invention reaches 32.4%.
Embodiment 2
It is 30 ± 1% the aqueous solution that mortar liquid composite air entraining agent, fetch water by weight 2 parts of 100 parts, 36 parts of ethoxylated alkyl sulfates, 5 parts of polyvinyl alcohol, hydroxyethylmethyl-cellulose ether are mixed with solid content.
Get the Chinese iso standard sand of 2000 grams, 200 gram P.C325 composite Portland cements, 250 gram water and 0.14 gram by the air entrapment agent of above-mentioned weight part preparation, pressing auto-programming at the planetary glue sand agitator of JJ-5 type stirred 240 seconds, measuring denseness is 92 millimeters, this mortar that stirs is parked and was again measured denseness in 10 minutes and 20 minutes, and the denseness rate of loss is respectively 5.4% and 8.7%.
Application test is in the situation that does not add this air entrapment agent simultaneously, and the water consumption that reach identical initial consistency (92 millimeters) is 380 grams; Learn: water-reducing rate of the present invention reaches 34.2%.
Claims (6)
1. mortar liquid composite air entraining agent is comprised of following composition and corresponding weight part:
2. a kind of mortar liquid composite air entraining agent according to claim 1 is characterized in that described mortar liquid composite air entraining agent, is comprised of following composition and corresponding weight part:
3. a kind of mortar liquid composite air entraining agent according to claim 2 is characterized in that described mortar liquid composite air entraining agent, is comprised of following composition and corresponding weight part:
4. a kind of mortar liquid composite air entraining agent according to claim 3, the alkyl chain that it is characterized in that described ethoxylated alkyl sulfate is 11-16, average ethoxymer distribution is 1-3.
5. a kind of mortar liquid composite air entraining agent according to claim 4 is characterized in that described suds-stabilizing agent is the mixture of a kind of or described two kinds of arbitrary proportions in polyvinyl alcohol, the polyoxyethylene glycol.
6. a kind of mortar liquid composite air entraining agent according to claim 5 is characterized in that described ether of cellulose is the mixture of a kind of or described two kinds of arbitrary proportions in hydroxypropyl methyl cellulose ether, hydroxyethylmethyl-cellulose ether, the hydroxyethyl ether cellulose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012105511930A CN103011678A (en) | 2012-12-17 | 2012-12-17 | Liquid composite air-entraining agent for mortar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105511930A CN103011678A (en) | 2012-12-17 | 2012-12-17 | Liquid composite air-entraining agent for mortar |
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| CN103011678A true CN103011678A (en) | 2013-04-03 |
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| CN2012105511930A Pending CN103011678A (en) | 2012-12-17 | 2012-12-17 | Liquid composite air-entraining agent for mortar |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497750A (en) * | 2013-09-18 | 2014-01-08 | 中国石油天然气股份有限公司长庆油田分公司第一采气厂 | Methanol-tolerance foaming drainage agent and preparation technology thereof |
| CN103951305A (en) * | 2014-04-02 | 2014-07-30 | 交通运输部公路科学研究所 | Air entrainer, cement concrete with added air entrainer and application of air entrainer and cement concrete in slip-form construction |
| CN106116221A (en) * | 2016-06-24 | 2016-11-16 | 桂林华越环保科技有限公司 | A kind of concrete air-entrainer |
| CN107572912A (en) * | 2017-08-29 | 2018-01-12 | 启东海中港建材有限公司 | A kind of foam concrete formula and preparation method and application |
| CN111995284A (en) * | 2020-08-19 | 2020-11-27 | 南通市展成商品混凝土有限公司 | Concrete air-entraining agent and concrete formula using same |
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| CN101805148A (en) * | 2010-04-14 | 2010-08-18 | 深圳市五山建材实业有限公司 | Method for preparing air entraining agent for concrete |
| CN102321505A (en) * | 2011-05-10 | 2012-01-18 | 浙江赞宇科技股份有限公司 | Liquid or paste fatty acid methyl ester-sodium sulfonate (MES) compound surfactant and preparation method thereof |
| CN102584082A (en) * | 2012-02-06 | 2012-07-18 | 西安科朗新型建筑材料有限公司 | Manufacturing method of novel mortar king |
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2012
- 2012-12-17 CN CN2012105511930A patent/CN103011678A/en active Pending
Patent Citations (3)
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| CN101805148A (en) * | 2010-04-14 | 2010-08-18 | 深圳市五山建材实业有限公司 | Method for preparing air entraining agent for concrete |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497750A (en) * | 2013-09-18 | 2014-01-08 | 中国石油天然气股份有限公司长庆油田分公司第一采气厂 | Methanol-tolerance foaming drainage agent and preparation technology thereof |
| CN103497750B (en) * | 2013-09-18 | 2016-04-13 | 中国石油天然气股份有限公司长庆油田分公司第二采气厂 | Methanol tolerance foaming water discharge agent and preparation technology thereof |
| CN103951305A (en) * | 2014-04-02 | 2014-07-30 | 交通运输部公路科学研究所 | Air entrainer, cement concrete with added air entrainer and application of air entrainer and cement concrete in slip-form construction |
| CN103951305B (en) * | 2014-04-02 | 2016-04-06 | 交通运输部公路科学研究所 | Air entrapment agent, add the cement concrete of air entrapment agent and their application in slding form operation |
| CN106116221A (en) * | 2016-06-24 | 2016-11-16 | 桂林华越环保科技有限公司 | A kind of concrete air-entrainer |
| CN107572912A (en) * | 2017-08-29 | 2018-01-12 | 启东海中港建材有限公司 | A kind of foam concrete formula and preparation method and application |
| CN107572912B (en) * | 2017-08-29 | 2020-04-10 | 启东海中港建材有限公司 | Foam concrete formula and preparation method and application thereof |
| CN111995284A (en) * | 2020-08-19 | 2020-11-27 | 南通市展成商品混凝土有限公司 | Concrete air-entraining agent and concrete formula using same |
| CN111995284B (en) * | 2020-08-19 | 2022-05-03 | 南通市展成商品混凝土有限公司 | Concrete air-entraining agent and concrete formula using same |
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Application publication date: 20130403 |