CN105985498A - Set retarding superplasticizer making use of flue gas desulfurization ash - Google Patents
Set retarding superplasticizer making use of flue gas desulfurization ash Download PDFInfo
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- CN105985498A CN105985498A CN201610025647.9A CN201610025647A CN105985498A CN 105985498 A CN105985498 A CN 105985498A CN 201610025647 A CN201610025647 A CN 201610025647A CN 105985498 A CN105985498 A CN 105985498A
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- flue gas
- gas desulfurization
- desulfurization ash
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/28—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/32—Polyethers, e.g. alkylphenol polyglycolether
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
Abstract
The invention discloses a set retarding superplasticizer making use of flue gas desulfurization ash. The set retarding superplasticizer is prepared from, by weight, 240-250 parts of TPEG, 25.2-26.0 parts of acrylic acid, 1.6-1.65 parts of ammonium persulfate, 0.53-0.55 part of mercaptoacetic acid, 13-14 parts of lignin, appropriate amount of sodium hydroxide solution with concentration being 10wt%, appropriate amount of deionized water, 26-28 parts of graphene oxide, 1.5-2 parts of texanol, 3-4 parts of dispersible adhesive powder, 0.9-1.2 parts of sodium hydroxide, 1.3-1.5 parts of sodium sulfate, 2-3 parts of triethanolamine, 7-8 parts of converter steel slag, 9-11 parts of flue gas desulfurization ash and 4-5 parts of sodium alginate. The set retarding superplasticizer has an excellent set retarding function and is capable of enhancing early strength of concrete, solid wastes are reduced, cement content is decreased, and land occupation of the solid wastes and pollutant generation in cement production are reduced simultaneously.
Description
Technical field
The present invention relates to technical field of concrete additives, particularly relate to a kind of efficient retarding and water reducing agent utilizing flue gas desulfurization ash.
Background technology
Polycarboxylate high performance water-reducing agent, as the important composition material of preparation high performance concrete, the guarantor outstanding advantages such as plasticity good, shrinkage factor low, high performance potentiality big high by its water-reducing rate, is widely used in the key projects such as high ferro, bridge, nuclear power, water power.But, polycarboxylate high performance water-reducing agent mother solution performance is the most single, it is impossible to meet different engineering field, the concrete of different performance requirement, greatly constrains extensively application and the development of polycarboxylate high performance water-reducing agent.Experts and scholars have carried out relatively systematic research by chemically and physically modified method to polycarboxylate high performance water-reducing agent both at home and abroad, achieve gratifying achievement.But these researchs are concentrated mainly on the performance improving polycarboxylate high performance water-reducing agent in a certain respect, such as spacetabs type, Xu are put type and utilize inexpensive monomers synthesis fall low-cost type, and the aspect such as multicomponent physics is compound, bring inconvenience so to compounding unit and construction enterprises, in use easily cause quality accident.
" experimental study of organic amine modified polycarboxylic acid series high-performance dehydragent " literary composition is for the problems referred to above the achievement in research that combines domestic and international expert, the polycarboxylate high performance water-reducing agent using organic amine to produce different manufacturers has carried out physics, chemical modification, the adaptability of cement is greatly improved by modified polycarboxylate high performance water-reducing agent, and the engineering that a kind of mother solution can be suitable for different requirement uses, it is achieved that the high performance of polycarboxylate high performance water-reducing agent mother solution, multifunction.But easily occur that bleeding, isolation, intensity are low, easily the problems such as crack occur when producing concrete, have impact on the use of water reducer, article does not illustrate for these shortcomings, need to be modified further.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of efficient retarding and water reducing agent utilizing flue gas desulfurization ash.
The present invention is achieved by the following technical solutions:
A kind of efficient retarding and water reducing agent utilizing flue gas desulfurization ash, is made up of the raw material of following weight portion: isopentenol polyoxyethylene ether 240-250, acrylic acid 25.2-26.0, Ammonium persulfate. 1.6-1.65, TGA 0.53-0.55, lignin 13-14, concentration are that the sodium hydroxide solution of 10wt% is appropriate, deionized water in right amount, graphene oxide 26-28, alcohol ester 12 1.5-2, re-dispersible glue powder 3-4, sodium hydroxide 0.9-1.2, sodium sulfate 1.3-1.5, triethanolamine 2-3, converter slag 7-8, flue gas desulfurization ash 9-11, sodium alginate 4-5.
Described a kind of efficient retarding and water reducing agent utilizing flue gas desulfurization ash, is made up of step in detail below:
(1) graphene oxide will add the deionized water of 4-5 times amount, put in ultrasonator ultrasonic 30-40 minute until being uniformly dispersed, then graphene oxide dispersion being put in the water-bath of 60-80 DEG C and heat, be slowly added to lignin, it is stand-by that dispersed with stirring forms mixture the most afterwards；
(2) reactor will add isopentenol polyoxyethylene ether, appropriate amount of deionized water, warming while stirring disposably adds Ammonium persulfate. after 60-70 DEG C, then be slowly added dropwise acrylic acid, mixture that TGA, step (1) obtain, control dripped complete in 3-3.5 hour, continue insulation reaction 60-90 minute, finally dripping the sodium hydroxide solution that concentration is 10wt% to be neutralized, regulation pH value is neutral, and solid content controls at 40%-45%；
(3) putting in Muffle furnace by flue gas desulfurization ash, under the conditions of 450-480 DEG C, aerobic sinters 120-150 minute, mixes with converter slag, puts into mixing and ball milling 60-90 minute in ball mill, obtain mixed-powder stand-by after taking-up after cooling；Sodium alginate is dissolved in the deionized water of 5-7 times amount, adds re-dispersible glue powder, above-mentioned mixed-powder, continuously add remaining residual components after stirring 30-40 minute with the speed of 500-600 rev/min, stir 20-30 minute；
(4) step (2) product is mixed with step (3) product, put in stirred tank, stir mixing with the speed of 600-800 rev/min and be uniformly dispersed and get final product.
The invention have the advantage that the present invention is by controlling the proportioning of isopentenol polyoxyethylene ether and acrylic monomers, thus prepare the water reducer with good dispersion, by polyreaction, lignin, graphene oxide are grafted in polyether-type water reducer molecule, the bleeding of water reducer can be reduced, improve graphene oxide dispersion in cement mortar simultaneously, microstructure to cement mortar has preferable regulating and controlling effect, concrete is played the effect of activeness and quietness, it is possible to improve the paste flowing degree of cement further.
The present invention utilizes flue gas desulfurization ash, mix with converter slag by high-temperature calcination is modified, reasonable mixture ratio, add in the preparation of water reducer, for concrete, there is good deferred action, it is possible to the early strength of Concrete Structure, make use of solid waste simultaneously, decrease cement consumption, reach reduce solid waste land occupation and reduce the purpose of the dual environmental benefit that pollutant produce in manufacture of cement.
Detailed description of the invention
A kind of efficient retarding and water reducing agent utilizing flue gas desulfurization ash, is made up of the raw material of following weight portion (kilogram): isopentenol polyoxyethylene ether 240, acrylic acid 25.2, Ammonium persulfate. 1.6, TGA 0.53, lignin 13, concentration are that the sodium hydroxide solution of 10wt% is appropriate, deionized water in right amount, graphene oxide 26, alcohol ester 12, re-dispersible glue powder 3, sodium hydroxide 0.9, sodium sulfate 1.3, triethanolamine 2, converter slag 7, flue gas desulfurization ash 9, sodium alginate 4.
Described a kind of efficient retarding and water reducing agent utilizing flue gas desulfurization ash, is made up of step in detail below:
(1) graphene oxide will add the deionized water of 4 times amount, put in ultrasonator ultrasonic 30 minutes until being uniformly dispersed, then graphene oxide dispersion being put in the water-bath of 60 DEG C and heat, be slowly added to lignin, it is stand-by that dispersed with stirring forms mixture the most afterwards；
(2) reactor will add isopentenol polyoxyethylene ether, appropriate amount of deionized water, warming while stirring disposably adds Ammonium persulfate. after 60 DEG C, then be slowly added dropwise acrylic acid, mixture that TGA, step (1) obtain, control dripped complete in 3 hours, continue insulation reaction 60 minutes, finally dripping the sodium hydroxide solution that concentration is 10wt% to be neutralized, regulation pH value is neutral, and solid content controls 40%%；
(3) putting in Muffle furnace by flue gas desulfurization ash, under the conditions of 450 DEG C, aerobic sinters 120 minutes, mixes with converter slag, put into mixing and ball milling 60 minutes in ball mill, obtain mixed-powder stand-by after taking-up after cooling；Sodium alginate is dissolved in the deionized water of 5 times amount, adds re-dispersible glue powder, above-mentioned mixed-powder, continuously add remaining residual components after stirring 30 minutes with the speed of 500 revs/min, stir 20 minutes；
(4) step (2) product is mixed with step (3) product, put in stirred tank, stir mixing with the speed of 600 revs/min and be uniformly dispersed and get final product.
The water reducer excellent product performance that the present invention prepares, water-reducing rate is up to 26.9%, and bleeding rate is 32.1%, volume of the present invention is cement consumption 1%, in the case of the identical ratio of mud compared with using ordinary water-reducing agent, the slump can be made to improve more than 15cm, comprcssive strength improves more than 18%.
Claims (2)
1. the efficient retarding and water reducing agent utilizing flue gas desulfurization ash, it is characterized in that, it is made up of the raw material of following weight portion: isopentenol polyoxyethylene ether 240-250, acrylic acid 25.2-26.0, Ammonium persulfate. 1.6-1.65, TGA 0.53-0.55, lignin 13-14, concentration is that the sodium hydroxide solution of 10wt% is appropriate, deionized water is appropriate, graphene oxide 26-28, alcohol ester 12 1.5-2, re-dispersible glue powder 3-4, sodium hydroxide 0.9-1.2, sodium sulfate 1.3-1.5, triethanolamine 2-3, converter slag 7-8, flue gas desulfurization ash 9-11, sodium alginate 4-5.
A kind of efficient retarding and water reducing agent utilizing flue gas desulfurization ash, it is characterised in that be made up of step in detail below:
(1) graphene oxide will add the deionized water of 4-5 times amount, put in ultrasonator ultrasonic 30-40 minute until being uniformly dispersed, then graphene oxide dispersion being put in the water-bath of 60-80 DEG C and heat, be slowly added to lignin, it is stand-by that dispersed with stirring forms mixture the most afterwards；
(2) reactor will add isopentenol polyoxyethylene ether, appropriate amount of deionized water, warming while stirring disposably adds Ammonium persulfate. after 60-70 DEG C, then be slowly added dropwise acrylic acid, mixture that TGA, step (1) obtain, control dripped complete in 3-3.5 hour, continue insulation reaction 60-90 minute, finally dripping the sodium hydroxide solution that concentration is 10wt% to be neutralized, regulation pH value is neutral, and solid content controls at 40%-45%；
(3) putting in Muffle furnace by flue gas desulfurization ash, under the conditions of 450-480 DEG C, aerobic sinters 120-150 minute, mixes with converter slag, puts into mixing and ball milling 60-90 minute in ball mill, obtain mixed-powder stand-by after taking-up after cooling；Sodium alginate is dissolved in the deionized water of 5-7 times amount, adds re-dispersible glue powder, above-mentioned mixed-powder, continuously add remaining residual components after stirring 30-40 minute with the speed of 500-600 rev/min, stir 20-30 minute；
(4) step (2) product is mixed with step (3) product, put in stirred tank, stir mixing with the speed of 600-800 rev/min and be uniformly dispersed and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610025647.9A CN105985498A (en) | 2016-01-15 | 2016-01-15 | Set retarding superplasticizer making use of flue gas desulfurization ash |
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| CN201610025647.9A CN105985498A (en) | 2016-01-15 | 2016-01-15 | Set retarding superplasticizer making use of flue gas desulfurization ash |
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| CN105985498A true CN105985498A (en) | 2016-10-05 |
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| CN201610025647.9A Pending CN105985498A (en) | 2016-01-15 | 2016-01-15 | Set retarding superplasticizer making use of flue gas desulfurization ash |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114105652A (en) * | 2021-11-19 | 2022-03-01 | 贵州万为金科特种建材有限公司 | Composite ceramic water reducing agent |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104788629A (en) * | 2014-12-17 | 2015-07-22 | 厦门路桥翔通建材科技有限公司 | Polycarboxylate water-reducing agent and normal-temperature preparation method thereof |
-
2016
- 2016-01-15 CN CN201610025647.9A patent/CN105985498A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104788629A (en) * | 2014-12-17 | 2015-07-22 | 厦门路桥翔通建材科技有限公司 | Polycarboxylate water-reducing agent and normal-temperature preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 高党国等: "氧化石墨烯与聚羧酸减水剂单体共聚物的制备与性能", 《精细化工》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114105652A (en) * | 2021-11-19 | 2022-03-01 | 贵州万为金科特种建材有限公司 | Composite ceramic water reducing agent |
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Application publication date: 20161005 |
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