CN102674743A - Fly ash concrete carbon adsorption inhibitor and application thereof - Google Patents
Fly ash concrete carbon adsorption inhibitor and application thereof Download PDFInfo
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- CN102674743A CN102674743A CN2012101843091A CN201210184309A CN102674743A CN 102674743 A CN102674743 A CN 102674743A CN 2012101843091 A CN2012101843091 A CN 2012101843091A CN 201210184309 A CN201210184309 A CN 201210184309A CN 102674743 A CN102674743 A CN 102674743A
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Abstract
The invention discloses a fly ash concrete carbon adsorption inhibitor comprising the following components by weight: 5-10 parts of aromatic amino micromolecule, 12-26 parts of aromatic sodium sulfonate, 38-50 parts of alcohol derivative, 8-14 parts of neighboring hydroxybenzoic acid salt, 3-8 parts of crylic acid-2-acrylamide-2-methyl propanesulfonic acid copolymer, 3-10 parts of ethanediamine tetramethylene phosphonate and 6-10 parts of organosilan. The fly ash concrete carbon adsorption inhibitor inhibits adsorption of an additive by carbon particles in the fly ash, improves the performance stability and durability of concrete, is favorably adapted to various additives, has favorable inhibitive ability to the fly ash concrete carbon adsorption with various mixing amount and quality, and does not influence the performance of the concrete. The inhibitor is small in the mixing amount so that the strength of concrete is improved and the construction is convenient.
Description
Technical field
The present invention relates to building material field, particularly a kind of flyash concrete carbon absorption suppressor factor and application thereof.
Background technology
Flyash mainly is to be the solid waste of the fuel-burning power plant discharge of fuel with the coal.Wherein discharge, mainly be flyash through the collected solid particulate of fly-ash separator from flue.The flyash particle is with its spheric granule-morphology, has the workability that can improve the coagulation scholar and can improve longterm strength through pozzolanic reaction, can reduce the concrete water amount, reduces the concrete cement volume and reduce the practical values such as heat that produce because of hydrated reaction of cement thereby be acknowledged as.
Wherein, contain the concrete of flyash mineral adulterant, be referred to as flyash concrete, along with the implementation of national energy-saving and emission-reduction, environmental protection policy, the utilization ratio of flyash in concrete is also increasingly high in recent years.Yet on the other hand; Because flyash contains unburned carbon granules; It has very strong adsorption to air entrapment agent; Thereby cause volume in the middle of the air entrapment agent use increase or air content through the time loss increase, caused certain difficulty to engineering construction, also brought hidden danger to concrete durability.Because the difference of flyash loss on ignition and fineness, its adsorptive capacity to air entrapment agent is different, and the air entrapment agent volume is not enough, and workability of concrete is poor, is difficult to construction, and the air entrapment agent volume is excessive, and concrete strength can significantly reduce.Unburned carbon granules in the flyash to the adsorption of water reducer, has also increased concrete water consumption in addition, has reduced concrete strength.
Summary of the invention
Goal of the invention: to the deficiency of above-mentioned prior art; It is less that the technical problem that the present invention will solve provides a kind of bleed effect, and the flyash concrete carbon that helps improving the concrete hole structure, improving workability of concrete, intensity and weather resistance adsorbs suppressor factor and application thereof.
Technical scheme: for solving the problems of the technologies described above; The technical scheme that the present invention adopted is: a kind of flyash concrete carbon adsorbs suppressor factor, comprises the component of following mass fraction: the amino small molecules 5-10 of aromatic series part, aromatic sulphonate 12-26 part, alcohol derivatives 38-50 part, salicylic acid salt 8-14 part, vinylformic acid-2-acrylic amide-2-methyl propane sulfonic acid multipolymer 3-8 part, ethylenediamine tetramethylene phosphonic acid salt 3-10 part, organosilane 6-10 part.
Wherein, the amino small molecules of said aromatic series is one or both in benzylamine, the benzhydrylamine.
Wherein, said aromatic sulphonate is the di-isopropyl sodium naphthalene sulfonate.
Wherein, said alcohol derivatives is one or more in EGME, ethylene glycol phenyl ether, the Diethylene Glycol butyl ether.
Wherein, said salicylic acid salt is the salicylic acid lithium.
Wherein, said vinylformic acid-2-acrylic amide-2-methyl propane sulfonic acid multipolymer, its molecular weight is at 1000-2000.
Wherein, said ethylenediamine tetramethylene phosphonic acid salt is sodium ethylenediamine tetramethylenephosphonate.
Wherein, said organosilane is γ-glycidyl ether oxygen propyl trimethoxy silicane.
The application of above-mentioned flyash concrete carbon absorption suppressor factor in the preparation flyash concrete.
As the further improvement of using, the volume of said flyash concrete carbon absorption suppressor factor is the 0.005-0.05% of gelling material weight in the concrete, and is sprayed on the flyash surface with spraying method, mixes use with other components of concrete again after stirring.Wherein gelling material is the mixture of flyash, cement, other mineral admixtures.
Beneficial effect: compared with prior art, advantage of the present invention is following:
1) utilizes the preferentially adsorbed property of flyash unburn carbon granules to aromatics; And vinylformic acid-2-acrylic amide-2-methyl propane sulfonic acid multipolymer and sodium ethylenediamine tetramethylenephosphonate are to carbon granule good adsorption avidity; Adopt salicylic acid lithium, vinylformic acid-2-acrylic amide-2-methyl propane sulfonic acid multipolymer and sodium ethylenediamine tetramethylenephosphonate pre-treating fly ash, fill up the hole of flyash carbon granules as sacrifice agent; And organosilane under the effect of water and air can with the carbon granule effect, generate silicon-dioxide, fill up the carbon granule micro-pore, simultaneously in the hydrated cementitious later stage, this part silicon-dioxide can also be participated in the flyash pozzolanic reaction, improves late strength of concrete; Its effect receives time effects less and receive flyash carbon granule content influence less to the amino small molecules of aromatic series as flyash carbon absorption suppressor factor, and the concrete bubble stability is strong; And di-isopropyl sodium naphthalene sulfonate and alcohol derivatives are adsorbed suppressor factor as flyash carbon, and the concrete bubble is less, and the bubble size is even, the variation coefficient is little, help improving the concrete hole structure, improve concrete durability.
2) di-isopropyl sodium naphthalene sulfonate, salicylic acid lithium and sodium ethylenediamine tetramethylenephosphonate have certain excitation as a kind of alkali to flyash; Can improve the activity of flyash; Increase the cohesive force between gelling material and the aggregate, thereby can improve concrete intensity.
3) the present invention utilizes benzylamine, di-isopropyl sodium naphthalene sulfonate, ethylene glycol phenyl ether, salicylic acid lithium, vinylformic acid-2-acrylic amide-2-methyl propane sulfonic acid multipolymer, sodium ethylenediamine tetramethylenephosphonate, γ-glycidyl ether oxygen propyl trimethoxy silicane to form flyash concrete carbon absorption suppressor factor by a certain percentage; Volume is few; Receive that doping quantity of fly ash influences little in the concrete; Receive flyash carbon granule content influence little; The bleed effect of flyash concrete carbon of the present invention absorption suppressor factor own is less, and volume do not have detrimentally affect to concrete when too much, helps improving the concrete hole structure, improves workability of concrete, intensity and weather resistance.
Embodiment
Through concrete embodiment the present invention is further specified below; Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the principle of the invention; Can also make some modification and improvement, these also should be regarded as belonging to protection scope of the present invention.
In following embodiment, if no special instructions, be mass fraction.
Embodiment 1: flyash concrete carbon absorption suppressor factor proportioning is: 7 parts of benzylamines, 26 parts of di-isopropyl sodium naphthalene sulfonates, 38 parts of ethylene glycol phenyl ethers, 12 parts of salicylic acid lithiums, 6 parts in vinylformic acid-2-acrylic amide-2-methyl propane sulfonic acid multipolymer (molecular-weight average is 1000), 5 parts of sodium ethylenediamine tetramethylenephosphonates, 6 parts of γ-glycidyl ether oxygen propyl trimethoxy silicanes, volume is 0.008% of a gelling material gross weight.
With the application of above-mentioned flyash concrete carbon absorption suppressor factor in the preparation flyash concrete, be specially: above-mentioned suppressor factor is sprayed on the flyash surface with spraying method, mixes use with other components of concrete again after stirring.
Flyash concrete is made up of flyash, cement, other mineral admixtures, water, chemical admixture, coarse aggregate, fine aggregate.Wherein gelling material is: flyash, cement, other mineral admixtures.
The proportioning of each component of concrete is a cement: flyash: sand: stone: water is 300:100:735:1055:170.
Concrete air-entrainer is an example with the aniorfic surfactant X 2073, and volume is 0.015% of a gelling material gross weight.
Cement water reducing agent is an example with the poly carboxylic acid admixture, and used poly carboxylic acid admixture is by polyester and polyethers additive complex, and its ratio is 4:6, solid content 15%, and water-reducing rate 16%, volume are 1.5% of gelling material gross weight.
Wherein flyash accounts for 40% of gelling material gross weight, and wherein we select loss on ignition to be respectively 1.23%, 8.33% flyash and do experiment, are designated as A flyash and B flyash respectively.
Embodiment 2: basic identical with embodiment 1; Different is flyash concrete carbon absorption suppressor factor proportioning and volume, specific as follows: 5 parts of benzylamines, 12 parts of di-isopropyl sodium naphthalene sulfonates, 50 parts of ethylene glycol phenyl ethers, 14 parts of salicylic acid lithiums, 6 parts in vinylformic acid-2-acrylic amide-2-methyl propane sulfonic acid multipolymer (molecular-weight average is 1200), 3 parts of sodium ethylenediamine tetramethylenephosphonates, 10 parts of γ-glycidyl ether oxygen propyl trimethoxy silicanes.
The volume of flyash concrete carbon absorption suppressor factor is 0.005% of a binder total amount.
Embodiment 3: basic identical with embodiment 1; Different is flyash concrete carbon absorption suppressor factor proportioning and volume, specific as follows: 7 parts of benzylamines, 26 parts of di-isopropyl sodium naphthalene sulfonates, 38 parts of ethylene glycol phenyl ethers, 12 parts of salicylic acid lithiums, 6 parts in vinylformic acid-2-acrylic amide-2-methyl propane sulfonic acid multipolymer (molecular-weight average is 1500), 5 parts of sodium ethylenediamine tetramethylenephosphonates, 6 parts of γ-glycidyl ether oxygen propyl trimethoxy silicanes.
The volume of flyash concrete carbon absorption suppressor factor is 0.05% of a binder total amount.
Its performance performance assessment criteria is carried out according to " Standard for test methods of properties of ordinary concrete mixture " (GB/T 50080-2002) and " normal concrete mechanical test method " (GB/T 50081-2002), and its concrete performance index are as shown in table 1.
Table 1
Embodiment 4: basic identical with embodiment 1; Different is flyash concrete carbon absorption suppressor factor proportioning and volume, specific as follows: 6 parts of benzylamines, 20 parts of di-isopropyl sodium naphthalene sulfonates, 42 parts of ethylene glycol phenyl ethers, 11 parts of salicylic acid lithiums, 8 parts in vinylformic acid-2-acrylic amide-2-methyl propane sulfonic acid multipolymer (molecular-weight average is 1800), 5 parts of sodium ethylenediamine tetramethylenephosphonates, 8 parts of γ-glycidyl ether oxygen propyl trimethoxy silicanes.
The volume of flyash concrete carbon absorption suppressor factor is 0.015% of a binder total amount.
Embodiment 5: basic identical with embodiment 1; Different is flyash concrete carbon absorption suppressor factor proportioning and volume, specific as follows: 9 parts of benzylamines, 20 parts of di-isopropyl sodium naphthalene sulfonates, 42 parts of ethylene glycol phenyl ethers, 8 parts of salicylic acid lithiums, 8 parts in vinylformic acid-2-acrylic amide-2-methyl propane sulfonic acid multipolymer (molecular-weight average is 2000), 5 parts of sodium ethylenediamine tetramethylenephosphonates, 8 parts of γ-glycidyl ether oxygen propyl trimethoxy silicanes.
The volume of flyash concrete carbon absorption suppressor factor is 0.03% of a binder total amount.
Embodiment 6: basic identical with embodiment 1; Different is flyash concrete carbon absorption suppressor factor proportioning and volume, specific as follows: 10 parts of benzylamines, 19 parts of di-isopropyl sodium naphthalene sulfonates, 42 parts of ethylene glycol phenyl ethers, 8 parts of salicylic acid lithiums, 3 parts in vinylformic acid-2-acrylic amide-2-methyl propane sulfonic acid multipolymer (molecular-weight average is 1700), 10 parts of sodium ethylenediamine tetramethylenephosphonates, 8 parts of γ-glycidyl ether oxygen propyl trimethoxy silicanes.
The volume of flyash concrete carbon absorption suppressor factor is 0.035% of a binder total amount.
Embodiment 7: basic identical with embodiment 1, different is to replace benzylamine with benzhydrylamine, spent glycol methyl ether, replacement ethylene glycol phenyl ether.
Embodiment 8: basic identical with embodiment 1, different is to replace benzylamine with benzhydrylamine, with Diethylene Glycol butyl ether replacement ethylene glycol phenyl ether.
Embodiment 9: basic identical with embodiment 1; Different is; The amino small molecules of aromatic series is that benzylamine and benzhydrylamine mix with arbitrary proportion, and alcohol derivatives is that EGME, ethylene glycol phenyl ether, Diethylene Glycol butyl ether mix with arbitrary proportion.
Embodiment 10: basic identical with embodiment 1, different is, alcohol derivatives is the mixture of EGME, ethylene glycol phenyl ether, and wherein the weight ratio of EGME, ethylene glycol phenyl ether is 1:3.
Embodiment 11: basic identical with embodiment 1, different is, alcohol derivatives is the mixture of Diethylene Glycol butyl ether, ethylene glycol phenyl ether, and wherein the weight ratio of Diethylene Glycol butyl ether, ethylene glycol phenyl ether is 1:1.
Embodiment 12: basic identical with embodiment 1, different is, alcohol derivatives is the mixture of Diethylene Glycol butyl ether, EGME, and wherein the weight ratio of Diethylene Glycol butyl ether, EGME is 1:1.
The present invention utilizes the unburned carbon contained particle absorption of the flyash performance similar with the charcoal absorption performance; The unburned carbon contained particle preferentially adsorbed of flyash aromatic series macromolecular cpd; And vinylformic acid-2-acrylic amide-2-methyl propane sulfonic acid multipolymer and sodium ethylenediamine tetramethylenephosphonate are to carbon granule good adsorption avidity; Adopt salicylic acid lithium, vinylformic acid-2-acrylic amide-2-methyl propane sulfonic acid multipolymer and sodium ethylenediamine tetramethylenephosphonate, powder filler coal ash carbon granule is than macrovoid; And γ-glycidyl ether oxygen propyl trimethoxy silicane under the effect of water and air can with the carbon granule effect; Generate silicon-dioxide, fill up the carbon granule micro-pore, simultaneously in the hydrated cementitious later stage; This part silicon-dioxide can also be participated in the flyash pozzolanic reaction, improves concrete strength; Utilize the surface action of the amino small molecules of aromatic series, di-isopropyl sodium naphthalene sulfonate, alcohol derivatives and flyash; Reduce the adsorption of flyash to admixture; Regulate the concrete hole structure; Improve workability of concrete, weather resistance, utilize the alkalimetal ion alkali excitation of salicylic acid lithium, di-isopropyl sodium naphthalene sulfonate and sodium ethylenediamine tetramethylenephosphonate, reduce concrete interface zone of transition Ca (OH)
2Content strengthens gelling material and aggregate cohesive force, improves the concrete bending and compressive strength.Simultaneously, the use of flyash concrete carbon absorption suppressor factor has reduced the usage quantity of water reducer in the concrete, has reduced concrete shrinkage.
Claims (10)
1. a flyash concrete carbon adsorbs suppressor factor; It is characterized in that, comprise the component of following mass fraction: the amino small molecules 5-10 of aromatic series part, aromatic sulphonate 12-26 part, alcohol derivatives 38-50 part, salicylic acid salt 8-14 part, vinylformic acid-2-acrylic amide-2-methyl propane sulfonic acid multipolymer 3-8 part, ethylenediamine tetramethylene phosphonic acid salt 3-10 part, organosilane 6-10 part.
2. flyash concrete carbon absorption suppressor factor according to claim 1 is characterized in that: the amino small molecules of said aromatic series is one or both in benzylamine, the benzhydrylamine.
3. flyash concrete carbon absorption suppressor factor according to claim 1, it is characterized in that: said aromatic sulphonate is the di-isopropyl sodium naphthalene sulfonate.
4. flyash concrete carbon absorption suppressor factor according to claim 1, it is characterized in that: said alcohol derivatives is one or more in EGME, ethylene glycol phenyl ether, the Diethylene Glycol butyl ether.
5. flyash concrete carbon absorption suppressor factor according to claim 1, it is characterized in that: said salicylic acid salt is the salicylic acid lithium.
6. flyash concrete carbon absorption suppressor factor according to claim 1, it is characterized in that: said vinylformic acid-2-acrylic amide-2-methyl propane sulfonic acid molecular weight of copolymer is between 1000-2000.
7. flyash concrete carbon absorption suppressor factor according to claim 1, it is characterized in that: said ethylenediamine tetramethylene phosphonic acid salt is sodium ethylenediamine tetramethylenephosphonate.
8. flyash concrete carbon absorption suppressor factor according to claim 1, it is characterized in that: said organosilane is γ-glycidyl ether oxygen propyl trimethoxy silicane.
9. the application of flyash concrete carbon absorption suppressor factor according to claim 1 in the preparation flyash concrete.
10. application according to claim 9; It is characterized in that; The volume of said flyash concrete carbon absorption suppressor factor is the 0.005-0.05% of gelling material weight in the concrete, and is sprayed on the flyash surface with spraying method, mixes use with other components of concrete again after stirring.
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| CN 201210184309 CN102674743B (en) | 2012-06-06 | 2012-06-06 | Fly ash concrete carbon adsorption inhibitor and application thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103419228A (en) * | 2013-08-29 | 2013-12-04 | 冯江生 | Cutting tool for inner bores of sealing ring |
| CN103601384A (en) * | 2013-10-29 | 2014-02-26 | 江苏名和集团有限公司 | Modification method of desulphurization fly ash |
| CN107418585A (en) * | 2017-07-24 | 2017-12-01 | 天津市德宇生物工程技术有限公司 | A kind of saline-alkali soil conditioner |
| CN110615641A (en) * | 2019-10-07 | 2019-12-27 | 山西省交通科技研发有限公司 | Foam concrete formula for platform back backfilling and processing equipment thereof |
| CN111892358A (en) * | 2020-08-18 | 2020-11-06 | 山东华爵混凝土有限公司 | Anti-freezing pump concrete and preparation method thereof |
| CN113831048A (en) * | 2021-10-13 | 2021-12-24 | 安徽瑞和新材料有限公司 | Preparation method of air entraining agent carbon adsorption resistant sacrificial agent |
| WO2023134148A1 (en) * | 2022-01-17 | 2023-07-20 | 甘肃智通科技工程检测咨询有限公司 | Oil shale semicoke adsorption inhibitor and application thereof in concrete preparation |
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| WO1985001500A1 (en) * | 1983-09-29 | 1985-04-11 | Martin Marietta Corporation | Additive for hydraulic cement mixes |
| CN1741864A (en) * | 2003-01-24 | 2006-03-01 | 博拉尔材料技术有限公司 | System and method for treating fly ash |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103419228A (en) * | 2013-08-29 | 2013-12-04 | 冯江生 | Cutting tool for inner bores of sealing ring |
| CN103601384A (en) * | 2013-10-29 | 2014-02-26 | 江苏名和集团有限公司 | Modification method of desulphurization fly ash |
| CN103601384B (en) * | 2013-10-29 | 2016-03-02 | 江苏名和集团有限公司 | A kind of method of modifying of desulfurized powder coal ash |
| CN107418585A (en) * | 2017-07-24 | 2017-12-01 | 天津市德宇生物工程技术有限公司 | A kind of saline-alkali soil conditioner |
| CN107418585B (en) * | 2017-07-24 | 2020-11-10 | 天津市德宇生物工程技术有限公司 | Saline-alkali soil conditioner |
| CN110615641A (en) * | 2019-10-07 | 2019-12-27 | 山西省交通科技研发有限公司 | Foam concrete formula for platform back backfilling and processing equipment thereof |
| CN111892358A (en) * | 2020-08-18 | 2020-11-06 | 山东华爵混凝土有限公司 | Anti-freezing pump concrete and preparation method thereof |
| CN111892358B (en) * | 2020-08-18 | 2022-04-19 | 山东华爵混凝土有限公司 | Anti-freezing pump concrete and preparation method thereof |
| CN113831048A (en) * | 2021-10-13 | 2021-12-24 | 安徽瑞和新材料有限公司 | Preparation method of air entraining agent carbon adsorption resistant sacrificial agent |
| CN113831048B (en) * | 2021-10-13 | 2022-05-27 | 安徽瑞和新材料有限公司 | Preparation method of air entraining agent carbon adsorption resistant sacrificial agent |
| WO2023134148A1 (en) * | 2022-01-17 | 2023-07-20 | 甘肃智通科技工程检测咨询有限公司 | Oil shale semicoke adsorption inhibitor and application thereof in concrete preparation |
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