CN103708765A - Regulator for polycarboxylate pumping agents - Google Patents
Regulator for polycarboxylate pumping agents Download PDFInfo
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- CN103708765A CN103708765A CN201310732458.1A CN201310732458A CN103708765A CN 103708765 A CN103708765 A CN 103708765A CN 201310732458 A CN201310732458 A CN 201310732458A CN 103708765 A CN103708765 A CN 103708765A
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- agent
- polycarboxylic acid
- acid series
- conditioning agent
- concrete
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Abstract
The invention provides a regulator for polycarboxylate pumping agents. The regulator comprises the following components in percentage by weight: 25-45% of sulfate, 10-20% of citrate, 20-25% of phosphate or metaphosphate, 20-25% of polyhydroxy aldehyde, 0.5-2% of solid defoaming agent, 1-5% of cellulose ether and the balance of solid dispersant. The regulator for polycarboxylate pumping agents provided by the invention can effectively inhibit effect of mud content in concrete aggregate on dosage of a polycarboxylate water reducing agent, reduce the doping amount of the polycarboxylate water reducing agent, perfect the concrete workability and maintain the use efficiency of the polycarboxylate water reducing agent.
Description
Technical field
The invention belongs to poly carboxylic acid pumping agent technical field, particularly, relate to a kind of polycarboxylic acid series pumping agent conditioning agent.
Background technology
Integral part maximum in concrete is aggregate, accounts for 75% left and right of volume of concrete.Silt content in concrete is all brought into by aggregate substantially.How many concrete mechanical properties of direct impact and the workability of silt content.The particle of mud is generally more tiny, is conventionally less than 0.05mm, and generally mud powder is rolled in aggregate surface, forms softer weak interfacial layer, affects the bond of cement and aggregate in concrete; Sometimes mud powder can the group of being gathered into, in concrete, form weak region, become the weak area in concrete, and how many meetings of silt content increase the micro mist amount of the material in concrete, thereby increase the specific surface area of material, adsorb a large amount of mixing waters and part admixture, make concrete workability become very poor, have be even difficult to construction.
The research of China's polycarboxylate water-reducer starts from the middle and later periods nineties 20th century, its suitability for industrialized production and application start from the early 21st century, it applies the at present positive fast development of process, at special line for passenger trains, in many priority projects such as the south water to north, port and pier, Hydropower Dam, public works, be used widely.In industrial and civil architecture, to concrete raw material, quality control does not have in heavy construction and priority project strictly, and the adaptability quality of the silt content of polycarboxylate water-reducer and aggregate directly has influence on the popularization of polycarboxylate water-reducer.Engineering practice shows, polycarboxylate water-reducer is very responsive to sand silt content in concrete, silt content in sand is very large on concrete impact, from workability of concrete, it has affected the concrete slump and slump-loss, from concrete mechanical property, when surpassing 3%, sand silt content will have impact to concrete strength.Also do not have at present a kind of effective way to solve this problem, can only solve by improving the volume of polycarboxylate water-reducer, but the volume that has improved polycarboxylate water-reducer has also improved the concrete cost of every side simultaneously.
Summary of the invention
For the impact of silt content on concrete performance in the use procedure of current poly carboxylic acid pumping agent, the invention provides a kind of polycarboxylic acid series pumping agent conditioning agent, can effectively suppress the impact of silt content on polycarboxylate water-reducer consumption in aggregate, reduce the volume of polycarboxylate water-reducer, improve concrete workability, keep the end-use performance of polycarboxylate water-reducer.
Object of the present invention is achieved through the following technical solutions, and a kind of polycarboxylic acid series pumping agent conditioning agent comprises each component of following weight percent:
Preferably, described polycarboxylic acid series pumping agent comprises each component of following weight percent with conditioning agent:
Preferred, described polycarboxylic acid series pumping agent comprises each component of following weight percent with conditioning agent:
Preferably, described vitriol is sodium sulfate, potassium sulfate or the mixing of the two.
Preferably, described Citrate trianion is Trisodium Citrate, Tripotassium Citrate or the mixing of the two.
Preferably, described phosphoric acid salt is sodium phosphate, potassiumphosphate or the mixing of the two, and described metaphosphate is sodium-metaphosphate, potassium metaphosphate or the mixing of the two.
Preferably, described solid defoamer is aluminum stearate and fatty acid ester.
Preferably, described solid dispersion is selected from one or more in water glass, tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 and trisodium phosphate, triethyl hexyl phosphoric acid, polyacrylamide, guar gum and fatty acid polyglycol ester.
Compared with prior art, the present invention has following beneficial effect:
The present invention forms according to the performance characteristic research and development of the mineralogical composition of cement and poly carboxylic acid pumping agent, for regulating the especially functional type auxiliary agent of polycarboxylate high performance water-reducing agent of concrete pump-feed agent, there is auxiliary diminishing, control concrete slump loss, improve concrete excreting water phenomenon, improve concrete strength, reduce the effect of Concrete Additive cost, the workability that can significantly improve mixing concrete thing, its beneficial effect has:
(1) reduce the susceptibility of poly carboxylic acid pumping agent to silt content in concrete, thereby play the effect of auxiliary diminishing;
(2) improve concrete mobility: conditioning agent can effectively improve the degree of mobilization of concrete mix, make its slump increase 20-30mm, meet construction requirement;
(3) improve concrete construction performance: can improve the parcel performance of sand-cement slurry to stone, while preventing concrete pumping, occur the separated segregation situation that waits of sandstone, contribute to the cohesiveness of pump concrete to improve;
(4) can improve concrete water retention property, promote homogeneity and the pumpability of ready mixed concrete integral body, reduce concrete water bleeding rate, reduce concrete surface because of the plastic crack of the too fast generation of dehydration simultaneously.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art further to understand the present invention, but not limit in any form the present invention.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
embodiment 1, the preparation of conditioning agent for polycarboxylic acid series pumping agent
Comprise the steps:
Step (1) takes each component according to the following ratio:
Step (2) adopts efficient centrifugal mixing machine to mix solid dispersion water glass, ether of cellulose, powder defoamer aluminum stearate;
Step (3) power-on, starts air compressor machine, while reaching 0.4MPa, automatically stops, and opens dedusting fan, starts homogenizer and stirs;
Step (4) successively blanking adds sodium sulfate, poly-hydroxy aldehyde, sodium phosphate, Trisodium Citrate;
After step (5) blanking, high-speed stirring 5min; The work in-process that mix are delivered in milling equipment, and grinding to 100 order, obtains.
embodiment 2, the preparation of conditioning agent for polycarboxylic acid series pumping agent
Comprise the steps:
Step (1) takes each component according to the following ratio:
Step (2) adopts efficient centrifugal mixing machine to mix solid dispersion triethyl hexyl phosphoric acid, ether of cellulose, powder defoamer propylene glycol fatty acid ester;
Step (3) starts air compressor machine, while reaching 0.4MPa, automatically stops, and opens dedusting fan, starts homogenizer, stirs;
Step (4) successively blanking adds sodium sulfate, poly-hydroxy aldehyde, potassiumphosphate and Tripotassium Citrate;
After step (5) blanking, high-speed stirring 5min; The work in-process that mix are delivered in milling equipment, and grinding to 100 order, obtains.
embodiment 3, the preparation of conditioning agent for polycarboxylic acid series pumping agent
Comprise the steps:
Step (1) takes each component according to the following ratio:
Step (2) solid dispersion polyacrylamide, ether of cellulose, powder defoamer cithrol adopt efficient centrifugal mixing machine to mix;
Step (3) starts air compressor machine, while reaching 0.4MPa, automatically stops, and opens dedusting fan, starts homogenizer and stirs;
Step (4) successively blanking adds sodium sulfate, poly-hydroxy aldehyde, sodium-metaphosphate and Trisodium Citrate;
After step (5) blanking, high-speed stirring 5min; The work in-process that mix are delivered in milling equipment, and grinding to 100 order, obtains.
embodiment 4, the preparation of conditioning agent for polycarboxylic acid series pumping agent
Comprise the steps:
Step (1) takes each component according to the following ratio:
Step (2) adopts efficient centrifugal mixing machine to mix solid dispersion guar gum, ether of cellulose, powder defoamer glycerol fatty acid ester;
Step (3) starts air compressor machine, while reaching 0.4MPa, automatically stops, and opens dedusting fan, starts homogenizer and stirs;
Step (4) successively blanking adds potassium sulfate, poly-hydroxy aldehyde, potassium metaphosphate and Tripotassium Citrate;
After step (5) blanking, high-speed stirring 5min; The work in-process that mix are delivered in milling equipment, and grinding to 100 order, obtains.
embodiment 5, the preparation of conditioning agent for polycarboxylic acid series pumping agent
Comprise the steps:
Step (1) takes each component according to the following ratio:
Step (2) adopts efficient centrifugal mixing machine to mix solid dispersion fatty acid polyglycol ester, ether of cellulose, powder defoamer polyhydroxyalkanoate;
Step (3) starts air compressor machine, while reaching 0.4MPa, automatically stops, and opens dedusting fan, starts homogenizer and stirs;
Step (4) successively blanking adds potassium sulfate, poly-hydroxy aldehyde, potassium metaphosphate and Trisodium Citrate;
After step (5) blanking, high-speed stirring 5min; The work in-process that mix are delivered in milling equipment, and grinding to 100 order, obtains.
implementation result
The polycarboxylic acid series pumping agent conditioning agent that embodiment 1 to embodiment 5 is obtained, detects each conventional index according to the detection method of this area routine, and its result is as follows:
(1) reduce the susceptibility of poly carboxylic acid pumping agent to silt content in concrete, thereby played the effect of auxiliary diminishing;
(2) improve concrete mobility: conditioning agent can effectively improve the degree of mobilization of concrete mix, make its slump increase 20-30mm, meet construction requirement;
(3) improve concrete construction performance: can improve the parcel performance of sand-cement slurry to stone, while preventing concrete pumping, occur the separated segregation situation that waits of sandstone, contribute to the cohesiveness of pump concrete to improve;
(4) can improve concrete water retention property, promote homogeneity and the pumpability of ready mixed concrete integral body, reduce concrete water bleeding rate, reduce concrete surface because of the plastic crack of the too fast generation of dehydration simultaneously.
Above specific embodiments of the invention are described.It will be appreciated that, the present invention is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (8)
1. a polycarboxylic acid series pumping agent conditioning agent, is characterized in that, comprises each component of following weight percent:
2. polycarboxylic acid series pumping agent conditioning agent according to claim 1, is characterized in that, described polycarboxylic acid series pumping agent conditioning agent comprises each component of following weight percent:
3. polycarboxylic acid series pumping agent conditioning agent according to claim 2, is characterized in that, comprises each component of following weight percent:
According to described in claim 1,2 or 3 polycarboxylic acid series pumping agent conditioning agent, it is characterized in that, described vitriol is sodium sulfate, potassium sulfate or the mixing of the two.
According to described in claim 1,2 or 3 polycarboxylic acid series pumping agent conditioning agent, it is characterized in that, described Citrate trianion is Trisodium Citrate, Tripotassium Citrate or the mixing of the two.
According to described in claim 1,2 or 3 polycarboxylic acid series pumping agent conditioning agent, it is characterized in that, described phosphoric acid salt is sodium phosphate, potassiumphosphate or the mixing of the two, described metaphosphate is sodium-metaphosphate, potassium metaphosphate or the mixing of the two.
According to described in claim 1,2 or 3 polycarboxylic acid series pumping agent conditioning agent, it is characterized in that, described solid defoamer is aluminum stearate, fatty acid ester or the mixing of the two.
According to described in claim 1,2 or 3 polycarboxylic acid series pumping agent conditioning agent, it is characterized in that, described solid dispersion is selected from one or more in water glass, tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 and trisodium phosphate, triethyl hexyl phosphoric acid, polyacrylamide, guar gum and fatty acid polyglycol ester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310732458.1A CN103708765B (en) | 2013-12-26 | 2013-12-26 | A kind of polycarboxylic acid series pumping agent conditioning agent |
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| CN201310732458.1A CN103708765B (en) | 2013-12-26 | 2013-12-26 | A kind of polycarboxylic acid series pumping agent conditioning agent |
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| CN103708765A true CN103708765A (en) | 2014-04-09 |
| CN103708765B CN103708765B (en) | 2016-01-20 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107352846A (en) * | 2017-08-31 | 2017-11-17 | 南京瑞迪高新技术有限公司 | The low glutinous type additive composition of bubble drop of high-strength concrete under a kind of low water binder ratio |
| CN107698188A (en) * | 2017-11-13 | 2018-02-16 | 刘国良 | A kind of concrete enhancing pumping admixture |
| CN108329985A (en) * | 2018-03-29 | 2018-07-27 | 武汉源锦商品混凝土有限公司 | A kind of concrete pump lubrication agent and its application method |
| CN108609903A (en) * | 2018-05-15 | 2018-10-02 | 方建波 | A kind of pumping admixture |
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| JPH06305804A (en) * | 1993-04-21 | 1994-11-01 | Shin Etsu Chem Co Ltd | Preparation of concrete kneaded product |
| CN101186461A (en) * | 2007-11-26 | 2008-05-28 | 江苏博特新材料有限公司 | Composite liquid for increasing early strength of concrete mixed with polycarboxylate additive |
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| CN102849980A (en) * | 2012-09-26 | 2013-01-02 | 十九冶成都建设有限公司 | Polycarboxylic series pumping agent and application thereof |
| CN103342500A (en) * | 2013-07-12 | 2013-10-09 | 中国建筑股份有限公司 | Clay screening agent and preparation method thereof |
| CN103466987A (en) * | 2013-09-16 | 2013-12-25 | 石家庄市长安育才建材有限公司 | Composite soil adsorbent for preventing high-content soil in concrete from adsorbing poly-carboxylic water reducer, and preparation method and using method of composite soil adsorbent |
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- 2013-12-26 CN CN201310732458.1A patent/CN103708765B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH06305804A (en) * | 1993-04-21 | 1994-11-01 | Shin Etsu Chem Co Ltd | Preparation of concrete kneaded product |
| CN101186461A (en) * | 2007-11-26 | 2008-05-28 | 江苏博特新材料有限公司 | Composite liquid for increasing early strength of concrete mixed with polycarboxylate additive |
| CN102718430A (en) * | 2012-06-29 | 2012-10-10 | 山东华伟银凯建材科技股份有限公司 | Mud content inhibitor for concrete doped with polycarboxylic acid type water reducer and preparation method and application method of mud content inhibitor |
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| CN103342500A (en) * | 2013-07-12 | 2013-10-09 | 中国建筑股份有限公司 | Clay screening agent and preparation method thereof |
| CN103466987A (en) * | 2013-09-16 | 2013-12-25 | 石家庄市长安育才建材有限公司 | Composite soil adsorbent for preventing high-content soil in concrete from adsorbing poly-carboxylic water reducer, and preparation method and using method of composite soil adsorbent |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107352846A (en) * | 2017-08-31 | 2017-11-17 | 南京瑞迪高新技术有限公司 | The low glutinous type additive composition of bubble drop of high-strength concrete under a kind of low water binder ratio |
| CN107352846B (en) * | 2017-08-31 | 2019-11-29 | 南京瑞迪高新技术有限公司 | Glutinous type additive composition drops in the low bubble of high-strength concrete under a kind of low water binder ratio |
| CN107698188A (en) * | 2017-11-13 | 2018-02-16 | 刘国良 | A kind of concrete enhancing pumping admixture |
| CN107698188B (en) * | 2017-11-13 | 2020-10-27 | 佛山市南海区沥建混凝土有限公司 | Reinforced pumping agent for concrete |
| CN108329985A (en) * | 2018-03-29 | 2018-07-27 | 武汉源锦商品混凝土有限公司 | A kind of concrete pump lubrication agent and its application method |
| CN108329985B (en) * | 2018-03-29 | 2021-06-22 | 武汉源锦商品混凝土有限公司 | Concrete pump lubricant and use method thereof |
| CN108609903A (en) * | 2018-05-15 | 2018-10-02 | 方建波 | A kind of pumping admixture |
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| CN103708765B (en) | 2016-01-20 |
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