CN109250996A - A kind of preparation method of insulation air-entrained concrete building block - Google Patents
A kind of preparation method of insulation air-entrained concrete building block Download PDFInfo
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- CN109250996A CN109250996A CN201811215025.8A CN201811215025A CN109250996A CN 109250996 A CN109250996 A CN 109250996A CN 201811215025 A CN201811215025 A CN 201811215025A CN 109250996 A CN109250996 A CN 109250996A
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- concrete building
- entrained concrete
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- insulation air
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of preparation method of insulation air-entrained concrete building block, include the following steps: gangue is dry, calcining, sulfuric acid solution, fluidized state stirring is added in cooling, sodium hydroxide solution stirring is added in filtering, dry cake, acrylic acid, N is added, N- nitroso bisacrylamide stirs evenly, and potassium peroxydisulfate is added and continues to stir, filters, it dry, pulverize to obtain first material；By first material, lime, cement, flyash, water stirring, aluminium powder cream is added and stirs to get second material；Second material is sent into mold, gets angry and rests, is cut, maintenance obtains insulation air-entrained concrete building block.The preparation method of insulation air-entrained concrete building block proposed by the present invention, gained air-entrained concrete building block thermal coefficient is low, good heat preservation performance, and intensity is high.
Description
Technical field
The present invention relates to building material technical field more particularly to a kind of preparation sides of insulation air-entrained concrete building block
Method
Background technique
Air-entrained concrete building block is better than other traditional construction materials as a kind of novel wall material in heat-proof quality.Currently,
Domestic air-entrained concrete building block is solid article, and in Application in Building, the single wall thermal conductivity of stock size is generally
0.18-0.22W/ (mK), heat preservation, heat insulation are still not ideal enough, and national energy-saving specification cannot be fully achieved.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of systems of insulation air-entrained concrete building block
Preparation Method, gained air-entrained concrete building block thermal coefficient is low, good heat preservation performance, and intensity is high.
A kind of preparation method of insulation air-entrained concrete building block proposed by the present invention, includes the following steps:
Sulfuric acid solution is added in S1, gangue is dry, calcining, cooling, and fluidized state stirs, and filtering, dry cake adds
Enter sodium hydroxide solution stirring, acrylic acid, N is added, N- nitroso bisacrylamide stirs evenly, and potassium peroxydisulfate is added and continues to stir
It mixes, filters, dry, pulverize to obtain first material；
S2, first material, lime, cement, flyash, water are stirred, aluminium powder cream is added and stirs to get second material；
S3, second material is sent into mold, gets angry and rests, cut, maintenance obtains insulation air-entrained concrete building block.
Preferably, in S1, sulfuric acid solution concentration is 4.3-5.5mol/L, concentration of sodium hydroxide solution 1.2-1.8mol/
L。
Preferably, in S1, gangue, sulfuric acid solution, sodium hydroxide solution, acrylic acid, N, N- nitroso bisacrylamide,
The weight ratio of potassium peroxydisulfate is 12-18:40-100:50-100:4-12:0.12-0.18:0.1-0.18.
Preferably, in S1, gangue is dry, drying temperature is 105-112 DEG C, 420-460 DEG C of calcining 5-12min, drop
Sulfuric acid solution is added in temperature, and fluidized state stirs 40-60min, filtering, and dry cake is added sodium hydroxide solution and stirs 1-2h,
Acrylic acid, N is added, N- nitroso bisacrylamide stirs evenly, and whipping temp is 120-130 DEG C, and potassium peroxydisulfate is added and continues
5-12min is stirred, filtering dry, pulverize to obtain first material.
Preferably, in S2, first material, lime, cement, flyash, water, aluminium powder cream weight ratio be 50-100:30-
40:4-16:1-5:100-150:1-1.8.
Preferably, in S2, first material, lime, cement, flyash, water are stirred into 10-18min, mixing speed 800-
1000r/min is added aluminium powder cream and stirs 1-3min, obtains second material.
Preferably, it in S3, gets angry and rests the time as 30-60min.
Preferably, in S3, curing time 5-10h, curing temperature is 170-190 DEG C, and maintenance pressure is 1.2-1.6MPa.
In S1 of the present invention, gangue is sent into calcining furnace after drying and is calcined, and can remove internal impurity completely, through sulphur
After sour acidification, under alkaline condition, under the initiation of potassium peroxydisulfate, with acrylic acid, N, N- nitroso bisacrylamide is anti-
It answers, not only uniform particle diameter, but also pattern is uniform, monodispersity is excellent；In S2, divide between first material and lime, cement, flyash
Function admirable is dissipated, so that building block green body is formed uniform hollow structure in forming process, the voidage of hollow structure, can up to 70%
The thermal coefficient of gained air-entrained concrete building block is effectively reduced, good heat preservation performance completes the green body of hollow structure, to reduce product
Bulk density, intensity are high.
Gained air-entrained concrete building block intensity of the invention is big, and not easy to crack, bearing capacity is strong, internal to have a large amount of stomatas
And micropore, there is excellent thermal and insulating performance, the thermal coefficient of building block is mixed lower than tradition up to 0.06-0.15W/ (mK)
The thermal coefficient of solidifying earth building blocks, while can thus mitigate the pollution caused by flyash to atmosphere, soil and water, optimization ecology
Environment, and it is low in cost.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of preparation method of insulation air-entrained concrete building block, includes the following steps:
S1,12kg gangue is dried, drying temperature is 112 DEG C, 420 DEG C of calcining 12min, and 40kg concentration is added in cooling
For 5.5mol/L sulfuric acid solution, fluidized state stirs 40min, and filtering, dry cake, addition 100kg concentration is 1.2mol/L hydrogen
Sodium hydroxide solution stirs 2h, and 4kg acrylic acid, 0.18kgN is added, and N- nitroso bisacrylamide stirs evenly, and whipping temp is
120 DEG C, 0.18kg potassium peroxydisulfate is added and continues to stir 5min, filtering dry, pulverize to obtain first material；
S2,100kg first material, 30kg lime, 16kg cement, 1kg flyash, 150kg water are stirred into 10min, stirring
Speed is 1000r/min, and 1kg aluminium powder cream is added and stirs 3min, obtains second material；
S3, second material is sent into mold, get angry the 30min that rests, cutting, conserves 10h, and curing temperature is 170 DEG C, supports
Shield pressure is 1.6MPa, obtains insulation air-entrained concrete building block.
Embodiment 2
A kind of preparation method of insulation air-entrained concrete building block, includes the following steps:
S1,18kg gangue is dried, drying temperature is 105 DEG C, 460 DEG C of calcining 5min, and 100kg concentration is added in cooling
For 4.3mol/L sulfuric acid solution, fluidized state stirs 60min, and filtering, dry cake, addition 50kg concentration is 1.8mol/L hydrogen-oxygen
Change sodium solution and stir 1h, 12kg acrylic acid, 0.12kgN is added, N- nitroso bisacrylamide stirs evenly, and whipping temp is
130 DEG C, 0.1kg potassium peroxydisulfate is added and continues to stir 12min, filtering dry, pulverize to obtain first material；
S2,50kg first material, 40kg lime, 4kg cement, 5kg flyash, 100kg water are stirred to 18min, stirring speed
Degree is 800r/min, and 1.8kg aluminium powder cream is added and stirs 1min, obtains second material；
S3, second material is sent into mold, get angry the 60min that rests, cutting, conserves 5h, and curing temperature is 190 DEG C, supports
Shield pressure is 1.2MPa, obtains insulation air-entrained concrete building block.
Embodiment 3
A kind of preparation method of insulation air-entrained concrete building block, includes the following steps:
S1,14kg gangue is dried, drying temperature is 110 DEG C, 430 DEG C of calcining 10min, and 60kg concentration is added in cooling
For 5.3mol/L sulfuric acid solution, fluidized state stirs 45min, and filtering, dry cake, addition 80kg concentration is 1.4mol/L hydrogen-oxygen
Change sodium solution and stir 1.7h, 6kg acrylic acid, 0.16kgN is added, N- nitroso bisacrylamide stirs evenly, and whipping temp is
122 DEG C, 0.16kg potassium peroxydisulfate is added and continues to stir 6min, filtering dry, pulverize to obtain first material；
S2,80kg first material, 33kg lime, 12kg cement, 2kg flyash, 140kg water are stirred to 12min, stirring speed
Degree is 950r/min, and 1.2kg aluminium powder cream is added and stirs 2.5min, obtains second material；
S3, second material is sent into mold, get angry the 40min that rests, cutting, conserves 8h, and curing temperature is 175 DEG C, supports
Shield pressure is 1.4MPa, obtains insulation air-entrained concrete building block.
Embodiment 4
A kind of preparation method of insulation air-entrained concrete building block, includes the following steps:
S1,16kg gangue is dried, drying temperature is 106 DEG C, 450 DEG C of calcining 6min, cooling, and 80kg concentration is added and is
4.5mol/L sulfuric acid solution, fluidized state stir 55min, and filtering, dry cake, addition 60kg concentration is 1.6mol/L hydroxide
Sodium solution stirs 1.3h, and 10kg acrylic acid, 0.14kgN is added, and N- nitroso bisacrylamide stirs evenly, and whipping temp is
128 DEG C, 0.12kg potassium peroxydisulfate is added and continues to stir 10min, filtering dry, pulverize to obtain first material；
S2,60kg first material, 37kg lime, 8kg cement, 4kg flyash, 120kg water are stirred to 16min, stirring speed
Degree is 850r/min, and 1.6kg aluminium powder cream is added and stirs 1.5min, obtains second material；
S3, second material is sent into mold, get angry the 50min that rests, cutting, conserves 6h, and curing temperature is 185 DEG C, supports
Shield pressure is 1.3MPa, obtains insulation air-entrained concrete building block.
Embodiment 5
A kind of preparation method of insulation air-entrained concrete building block, includes the following steps:
S1,15kg gangue is dried, drying temperature is 108 DEG C, 440 DEG C of calcining 8min, cooling, and 70kg concentration is added and is
4.9mol/L sulfuric acid solution, fluidized state stir 50min, and filtering, dry cake, addition 70kg concentration is 1.5mol/L hydroxide
Sodium solution stirs 1.5h, and 8kg acrylic acid, 0.15kgN is added, and N- nitroso bisacrylamide stirs evenly, whipping temp 125
DEG C, 0.14kg potassium peroxydisulfate is added and continues to stir 8min, filtering dry, pulverize to obtain first material；
S2,70kg first material, 35kg lime, 10kg cement, 3kg flyash, 130kg water are stirred to 14min, stirring speed
Degree is 900r/min, and 1.4kg aluminium powder cream is added and stirs 2min, obtains second material；
S3, second material is sent into mold, get angry the 45min that rests, cutting, conserves 7h, and curing temperature is 180 DEG C, supports
Shield pressure is 1.35MPa, obtains insulation air-entrained concrete building block.
5 gained insulation air-entrained concrete building block of embodiment is tested for the property, result is as follows:
| Standard | As a result | |
| Dry bulk density, kg/m3 | ≤650 | 580 |
| Compression strength, Mpa | ≥2.0 | 3.6 |
| Drying shrinkage value (standard law), mm/m | ≤0.50 | 0.35 |
| Heat transfer coefficient, W/ (mK) | ≤0.8 | 0.06 |
| Intensity after jelly, Mpa | ≥2.0 | 3.2 |
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of preparation method of insulation air-entrained concrete building block, which comprises the steps of:
Sulfuric acid solution, fluidized state stirring, filtering, dry cake, addition hydrogen is added in S1, gangue is dry, calcining, cooling
Sodium hydroxide solution stirring, is added acrylic acid, N, and N- nitroso bisacrylamide stirs evenly, and potassium peroxydisulfate is added and continues to stir,
Filtering, dry, pulverize to obtain first material；
S2, first material, lime, cement, flyash, water are stirred, aluminium powder cream is added and stirs to get second material；
S3, second material is sent into mold, gets angry and rests, cut, maintenance obtains insulation air-entrained concrete building block.
2. the preparation method of insulation air-entrained concrete building block according to claim 1, which is characterized in that in S1, sulfuric acid
Solution concentration is 4.3-5.5mol/L, concentration of sodium hydroxide solution 1.2-1.8mol/L.
3. the preparation method of insulation air-entrained concrete building block according to claim 1 or claim 2, which is characterized in that in S1, coal
Spoil, sulfuric acid solution, sodium hydroxide solution, acrylic acid, N, N- nitroso bisacrylamide, potassium peroxydisulfate weight ratio be 12-
18:40-100:50-100:4-12:0.12-0.18:0.1-0.18.
4. the preparation method of any one of -3 insulation air-entrained concrete building blocks according to claim 1, which is characterized in that S1
In, gangue is dry, and drying temperature is 105-112 DEG C, 420-460 DEG C of calcining 5-12min, cooling, and sulfuric acid solution, boiling is added
State stirring 40-60min, filtering are risen, dry cake is added sodium hydroxide solution and stirs 1-2h, acrylic acid, N, N- nitrous is added
Base bisacrylamide stirs evenly, and whipping temp is 120-130 DEG C, and potassium peroxydisulfate is added and continues to stir 5-12min, filters, does
Dry, crushing obtains first material.
5. the preparation method of any one of -4 insulation air-entrained concrete building blocks according to claim 1, which is characterized in that S2
In, first material, lime, cement, flyash, water, aluminium powder cream weight ratio be 50-100:30-40:4-16:1-5:100-
150:1-1.8.
6. the preparation method of any one of -5 insulation air-entrained concrete building blocks according to claim 1, which is characterized in that S2
In, first material, lime, cement, flyash, water are stirred into 10-18min, mixing speed 800-1000r/min, aluminium is added
Powder cream stirs 1-3min, obtains second material.
7. the preparation method of any one of -6 insulation air-entrained concrete building blocks according to claim 1, which is characterized in that S3
In, it gets angry and rests the time as 30-60min.
8. the preparation method of any one of -7 insulation air-entrained concrete building blocks according to claim 1, which is characterized in that S3
In, curing time 5-10h, curing temperature is 170-190 DEG C, and maintenance pressure is 1.2-1.6MPa.
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| CN201811215025.8A CN109250996A (en) | 2018-10-18 | 2018-10-18 | A kind of preparation method of insulation air-entrained concrete building block |
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| CN201811215025.8A CN109250996A (en) | 2018-10-18 | 2018-10-18 | A kind of preparation method of insulation air-entrained concrete building block |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109761558A (en) * | 2019-01-30 | 2019-05-17 | 滁州职业技术学院 | A kind of thermal insulation concrete and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671693A (en) * | 2014-12-24 | 2015-06-03 | 长安大学 | Concrete reinforced water-retaining internal curing material and preparation method thereof |
| CN107266108A (en) * | 2017-06-29 | 2017-10-20 | 合肥达户电线电缆科技有限公司 | A kind of air-entrained concrete building block and preparation method thereof |
-
2018
- 2018-10-18 CN CN201811215025.8A patent/CN109250996A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671693A (en) * | 2014-12-24 | 2015-06-03 | 长安大学 | Concrete reinforced water-retaining internal curing material and preparation method thereof |
| CN107266108A (en) * | 2017-06-29 | 2017-10-20 | 合肥达户电线电缆科技有限公司 | A kind of air-entrained concrete building block and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109761558A (en) * | 2019-01-30 | 2019-05-17 | 滁州职业技术学院 | A kind of thermal insulation concrete and preparation method thereof |
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Application publication date: 20190122 |
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