CN110606685A - Polycarboxylic acid high-efficiency concrete admixture and preparation method thereof - Google Patents
Polycarboxylic acid high-efficiency concrete admixture and preparation method thereof Download PDFInfo
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- CN110606685A CN110606685A CN201910985471.5A CN201910985471A CN110606685A CN 110606685 A CN110606685 A CN 110606685A CN 201910985471 A CN201910985471 A CN 201910985471A CN 110606685 A CN110606685 A CN 110606685A
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- polycarboxylic acid
- concrete admixture
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- efficiency concrete
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
Abstract
The invention discloses a polycarboxylic acid high-efficiency concrete admixture and a preparation method thereof, and relates to a polycarboxylic acid concrete admixture and a preparation method thereof, wherein the polycarboxylic acid concrete admixture comprises 10-30 parts of acrylic acid, 10-30 parts of sodium allylsulfonate, 10-30 parts of ferrous sulfate, 10-30 parts of industrial salt, 10-30 parts of fly ash, 10-20 parts of calcium carbonate powder, 5-10 parts of a rust inhibitor, 10-15 parts of crushed waste clothes, 5-10 parts of a stabilizer, 5-10 parts of sodium hydroxide, 5-10 parts of an inorganic matrix material, 5-10 parts of ascorbic acid, 2-8 parts of an early strength agent, 2-8 parts of a water reducing agent, 2-8 parts of a coagulation regulator, 2-6 parts of a surfactant, 2-6 parts of an exciting agent, 2-6 parts of a waterproof agent and 30-50 parts of water. The invention has the characteristics of high early strength, no shrinkage in later period, adjustable hardening and condensing time, wide applicable temperature range, low mixing amount and the like, and is simple in preparation process, short in production period, low in cost and suitable for industrial large-scale production.
Description
Technical Field
The invention relates to a polycarboxylic acid high-efficiency concrete admixture and a preparation method thereof, and relates to a polycarboxylic acid concrete admixture and a preparation method thereof.
Background
At present, mortar and concrete admixtures provided for constructional engineering are single varieties, and more than two admixtures are required to obtain more than two effects, so that construction inconvenience is brought to constructional engineering and production cost is increased.
The research object of the additive is actually to cement, which is an indispensable cementing material in concrete, and the production of cement is a product with high energy consumption and environmental pollution.
The application of concrete admixture in engineering is more and more emphasized, the addition of the admixture plays a certain role in improving the performance of concrete, but the selection, addition method and adaptability of the admixture seriously influence the development of the admixture.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the polycarboxylic acid high-efficiency concrete admixture and the preparation method thereof, and the polycarboxylic acid high-efficiency concrete admixture has the characteristics of high early strength, no shrinkage in the later period, adjustable hardening and setting time, wide applicable temperature range, low mixing amount and the like, and is simple in preparation process, short in production period, low in cost and suitable for industrial large-scale production.
The polycarboxylic acid high-efficiency concrete admixture comprises the following raw materials in parts by weight: 10-30 parts of acrylic acid, 10-30 parts of sodium allylsulfonate, 10-30 parts of ferrous sulfate, 10-30 parts of industrial salt, 10-30 parts of fly ash, 10-20 parts of calcium carbonate powder, 5-10 parts of rust inhibitor, 10-15 parts of crushed waste clothes, 5-10 parts of stabilizer, 5-10 parts of sodium hydroxide, 5-10 parts of inorganic matrix material, 5-10 parts of ascorbic acid, 2-8 parts of early strength agent, 2-8 parts of water reducing agent, 2-8 parts of pour regulator, 2-6 parts of surfactant, 2-6 parts of excitant, 2-6 parts of waterproof agent and 30-50 parts of water.
The particle size of the calcium carbonate powder is 120-140 meshes.
A preparation method of a polycarboxylic acid high-efficiency concrete admixture comprises the following steps:
the method comprises the following steps: preparing materials according to the components in the proportion and the content in parts by weight;
step two: placing acrylic acid and sodium allylsulfonate into a reactor for copolymerization reaction to obtain a polymer for later use;
step three: pumping the polymer mixed in the second step to a symbiotic tank, sequentially mixing ferrous sulfate, industrial salt, fly ash, calcium carbonate powder, crushed waste clothes, a rust inhibitor, a stabilizer, sodium hydroxide, an early strength agent, a water reducing agent, a surfactant, a waterproof agent and ascorbic acid in a reaction kettle, and adding water, a coagulation regulator and an exciting agent; heating to a proper temperature;
step four: adding inorganic matrix material, stirring uniformly, pumping and storing to obtain the polycarboxylic acid high-efficiency concrete admixture.
The temperature of the copolymerization reaction in the second step reactor is controlled at 110-120 ℃, and the reaction time is 3.5-5.5 h.
And step three, heating to a proper temperature and controlling the temperature to be 55-65 ℃.
Has the advantages that: the polycarboxylic acid high-efficiency concrete admixture and the preparation method thereof have the characteristics of high early strength, no shrinkage in later period, adjustable hardening and setting time, wide applicable temperature range, low mixing amount and the like, and are simple in preparation process, short in production period, low in cost and suitable for industrial large-scale production.
Detailed Description
The present invention will be described in further detail by way of examples.
Example 1
The polycarboxylic acid high-efficiency concrete admixture comprises the following raw materials in parts by weight: 10 parts of acrylic acid, 10 parts of sodium allylsulfonate, 10 parts of ferrous sulfate, 10 parts of industrial salt, 10 parts of fly ash, 10 parts of calcium carbonate powder, 5 parts of rust inhibitor, 10 parts of crushed waste clothes, 5 parts of stabilizer, 5 parts of sodium hydroxide, 5 parts of inorganic base material, 5 parts of ascorbic acid, 2 parts of early strength agent, 2 parts of water reducing agent, 2 parts of coagulation regulator, 2 parts of surfactant, 2 parts of excitant, 2 parts of waterproof agent and 30 parts of water.
Furthermore, the particle size of the calcium carbonate powder is 120 meshes.
A preparation method of a polycarboxylic acid high-efficiency concrete admixture comprises the following steps:
the method comprises the following steps: preparing materials according to the components in the proportion and the content in parts by weight;
step two: placing acrylic acid and sodium allylsulfonate into a reactor for copolymerization reaction to obtain a polymer for later use;
step three: pumping the polymer mixed in the second step to a symbiotic tank, sequentially mixing ferrous sulfate, industrial salt, fly ash, calcium carbonate powder, crushed waste clothes, a rust inhibitor, a stabilizer, sodium hydroxide, an early strength agent, a water reducing agent, a surfactant, a waterproof agent and ascorbic acid in a reaction kettle, and adding water, a coagulation regulator and an exciting agent; heating to a proper temperature;
step four: adding inorganic matrix material, stirring uniformly, pumping and storing to obtain the polycarboxylic acid high-efficiency concrete admixture.
The temperature of the copolymerization reaction in the second reactor is controlled at 110 ℃, and the reaction time is 3.5 h.
And step three, heating to a proper temperature and controlling the temperature to be 55 ℃.
Example 2
The polycarboxylic acid high-efficiency concrete admixture comprises the following raw materials in parts by weight: 20 parts of acrylic acid, 20 parts of sodium allylsulfonate, 20 parts of ferrous sulfate, 20 parts of industrial salt, 20 parts of fly ash, 15 parts of calcium carbonate powder, 7.5 parts of rust inhibitor, 12.5 parts of crushed waste clothes, 7.5 parts of stabilizer, 7.5 parts of sodium hydroxide, 7.5 parts of inorganic base material, 7.5 parts of ascorbic acid, 5 parts of early strength agent, 5 parts of water reducing agent, 5 parts of pour regulator, 4 parts of surfactant, 4 parts of activator, 4 parts of waterproof agent and 40 parts of water.
Furthermore, the particle size of the calcium carbonate powder is 130 meshes.
A preparation method of a polycarboxylic acid high-efficiency concrete admixture comprises the following steps:
the method comprises the following steps: preparing materials according to the components in the proportion and the content in parts by weight;
step two: placing acrylic acid and sodium allylsulfonate into a reactor for copolymerization reaction to obtain a polymer for later use;
step three: pumping the polymer mixed in the second step to a symbiotic tank, sequentially mixing ferrous sulfate, industrial salt, fly ash, calcium carbonate powder, crushed waste clothes, a rust inhibitor, a stabilizer, sodium hydroxide, an early strength agent, a water reducing agent, a surfactant, a waterproof agent and ascorbic acid in a reaction kettle, and adding water, a coagulation regulator and an exciting agent; heating to a proper temperature;
step four: adding inorganic matrix material, stirring uniformly, pumping and storing to obtain the polycarboxylic acid high-efficiency concrete admixture.
The temperature of the copolymerization reaction in the second step reactor is controlled at 115 ℃, and the reaction time is 4.5 h.
The method for preparing the polycarboxylic acid high-efficiency concrete admixture as claimed in claim 3, which is characterized in that: and step three, heating to a proper temperature and controlling the temperature to be 60 ℃.
Example 3
The polycarboxylic acid high-efficiency concrete admixture comprises the following raw materials in parts by weight: 30 parts of acrylic acid, 30 parts of sodium allylsulfonate, 30 parts of ferrous sulfate, 30 parts of industrial salt, 30 parts of fly ash, 20 parts of calcium carbonate powder, 10 parts of rust inhibitor, 15 parts of crushed waste clothes, 10 parts of stabilizer, 10 parts of sodium hydroxide, 10 parts of inorganic base material, 10 parts of ascorbic acid, 8 parts of early strength agent, 8 parts of water reducing agent, 8 parts of coagulation regulator, 6 parts of surfactant, 6 parts of excitant, 6 parts of waterproof agent and 50 parts of water.
Furthermore, the particle size of the calcium carbonate powder is 140 meshes.
A preparation method of a polycarboxylic acid high-efficiency concrete admixture comprises the following steps:
the method comprises the following steps: preparing materials according to the components in the proportion and the content in parts by weight;
step two: placing acrylic acid and sodium allylsulfonate into a reactor for copolymerization reaction to obtain a polymer for later use;
step three: pumping the polymer mixed in the second step to a symbiotic tank, sequentially mixing ferrous sulfate, industrial salt, fly ash, calcium carbonate powder, crushed waste clothes, a rust inhibitor, a stabilizer, sodium hydroxide, an early strength agent, a water reducing agent, a surfactant, a waterproof agent and ascorbic acid in a reaction kettle, and adding water, a coagulation regulator and an exciting agent; heating to a proper temperature;
step four: adding inorganic matrix material, stirring uniformly, pumping and storing to obtain the polycarboxylic acid high-efficiency concrete admixture.
The temperature of the copolymerization reaction in the second step reactor is controlled at 120 ℃, and the reaction time is 5.5 h.
And step three, heating to a proper temperature and controlling the temperature to be 65 ℃.
Claims (5)
1. The polycarboxylic acid high-efficiency concrete admixture is characterized by comprising the following raw materials in parts by weight: 10-30 parts of acrylic acid, 10-30 parts of sodium allylsulfonate, 10-30 parts of ferrous sulfate, 10-30 parts of industrial salt, 10-30 parts of fly ash, 10-20 parts of calcium carbonate powder, 5-10 parts of rust inhibitor, 10-15 parts of crushed waste clothes, 5-10 parts of stabilizer, 5-10 parts of sodium hydroxide, 5-10 parts of inorganic matrix material, 5-10 parts of ascorbic acid, 2-8 parts of early strength agent, 2-8 parts of water reducing agent, 2-8 parts of pour regulator, 2-6 parts of surfactant, 2-6 parts of excitant, 2-6 parts of waterproof agent and 30-50 parts of water.
2. The polycarboxylic acid high-efficiency concrete admixture according to claim 1, which is characterized in that: the particle size of the calcium carbonate powder is 120-140 meshes.
3. The method for preparing the polycarboxylic acid high-efficiency concrete admixture as claimed in claim 1, which is characterized in that: the method comprises the following steps:
the method comprises the following steps: preparing materials according to the components in the proportion and the content in parts by weight;
step two: placing acrylic acid and sodium allylsulfonate into a reactor for copolymerization reaction to obtain a polymer for later use;
step three: pumping the polymer mixed in the second step to a symbiotic tank, sequentially mixing ferrous sulfate, industrial salt, fly ash, calcium carbonate powder, crushed waste clothes, a rust inhibitor, a stabilizer, sodium hydroxide, an early strength agent, a water reducing agent, a surfactant, a waterproof agent and ascorbic acid in a reaction kettle, and adding water, a coagulation regulator and an exciting agent; heating to a proper temperature;
step four: adding inorganic matrix material, stirring uniformly, pumping and storing to obtain the polycarboxylic acid high-efficiency concrete admixture.
4. The method for preparing the polycarboxylic acid high-efficiency concrete admixture as claimed in claim 3, which is characterized in that: the temperature of the copolymerization reaction in the second step reactor is controlled at 110-120 ℃, and the reaction time is 3.5-5.5 h.
5. The method for preparing the polycarboxylic acid high-efficiency concrete admixture as claimed in claim 3, which is characterized in that: and step three, heating to a proper temperature and controlling the temperature to be 55-65 ℃.
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Citations (5)
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| JP2000072499A (en) * | 1998-08-24 | 2000-03-07 | Blue Rokku:Kk | Production of aggregate for asphalt mixture |
| JP2014088288A (en) * | 2012-10-31 | 2014-05-15 | Tokuyama Corp | Pretreatment method for fabric-like waste material |
| CN105753371A (en) * | 2016-04-14 | 2016-07-13 | 魏倩 | Lightweight compressive regenerative building material and preparation method thereof |
| CN109320128A (en) * | 2018-09-04 | 2019-02-12 | 江苏兆佳建材科技有限公司 | A kind of cement concrete admixture of quickly repairing cement concrete roads |
| CN109336486A (en) * | 2018-09-04 | 2019-02-15 | 徐州金盟新型建材有限公司 | A kind of efficient high-temperature resistant concrete and preparation method thereof |
-
2019
- 2019-10-17 CN CN201910985471.5A patent/CN110606685A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000072499A (en) * | 1998-08-24 | 2000-03-07 | Blue Rokku:Kk | Production of aggregate for asphalt mixture |
| JP2014088288A (en) * | 2012-10-31 | 2014-05-15 | Tokuyama Corp | Pretreatment method for fabric-like waste material |
| CN105753371A (en) * | 2016-04-14 | 2016-07-13 | 魏倩 | Lightweight compressive regenerative building material and preparation method thereof |
| CN109320128A (en) * | 2018-09-04 | 2019-02-12 | 江苏兆佳建材科技有限公司 | A kind of cement concrete admixture of quickly repairing cement concrete roads |
| CN109336486A (en) * | 2018-09-04 | 2019-02-15 | 徐州金盟新型建材有限公司 | A kind of efficient high-temperature resistant concrete and preparation method thereof |
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Application publication date: 20191224 |
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