CN108178591A - A kind of air entrained concrete of high-strength light and preparation method thereof - Google Patents
A kind of air entrained concrete of high-strength light and preparation method thereof Download PDFInfo
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- CN108178591A CN108178591A CN201711226893.1A CN201711226893A CN108178591A CN 108178591 A CN108178591 A CN 108178591A CN 201711226893 A CN201711226893 A CN 201711226893A CN 108178591 A CN108178591 A CN 108178591A
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- air entrained
- entrained concrete
- strength light
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- cement
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- 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 belongs to building material technical fields, are related to a kind of air entrained concrete of high-strength light and preparation method thereof.The air entrained concrete, including 80~120 parts of cement, 200~600 parts of flyash, 50~250 parts of lime, 2~20 parts of gypsum, 0.2~1 part of aluminium powder, 0.5~2 part of additive, 0.2~1 part of foam stabilizer, 0.5~2 part of fibrous material, the ratio of mud is 0.25~0.75, and additive includes coagulant, early strength agent, water-reducing agent.Using the present invention, the air entrained concrete of preparation has that good resistance to compression is shockproof, thermal and insulating performance, and product quality is light, intensity is high, effectively reduce the dosage of cement and lime, preparation process operability is strong, and difficulty of construction is low, short construction period, construction cost are low, has good application prospect.
Description
Technical field
The invention belongs to building material technical fields, are related to a kind of air entrained concrete of high-strength light and preparation method thereof.
Background technology
Air entrained concrete is a kind of light-duty building walling, has the performances such as insulation, sound insulating and absorbing, antidetonation antiseepage.
Air entrained concrete can do raw material in preparation process with sand-lime, slag, tailings, gangue etc., and raw material sources are very extensive,
Meanwhile air entrained concrete also has the advantages such as processability is strong, plasticity is strong, application field is extensive, accelerates the development of the sector.One
As for, the weight of air-entrained concrete building block is the 1/4 of normal concrete weight, is a kind of lightweight concrete product, can have
Effect mitigates the dead weight of building, improves the anti-seismic performance of building, suitable for the filling wall of skyscraper and the load bearing wall of low-rise building.
More and more extensive with the application of air entrained concrete, the requirement in industry to existing product is also gradually increased, and shows
With the presence of product workability is poor, slump-loss is big, shock resistance is poor, product strength is low, product quality many limitations such as again,
Limit the further development of air entrained concrete industry.
Invention content
The purpose of the present invention is to provide a kind of air entrained concrete, effectively mitigate the quality of product, improve the intensity of product
And resistance to compression shockproof properties, promote the performance of air entrained concrete.
The present invention also aims to provide a kind of preparation method of air entrained concrete, the light high strength concrete is realized
It prepares, the comprehensive performance of product is effectively ensured, has stronger operability.
The present invention solve above-mentioned technical problem technical solution be：
A kind of air entrained concrete of high-strength light includes the raw material of following mass fraction：
80~120 parts of cement, 200~600 parts of flyash, 50~250 parts of lime, 2~20 parts of gypsum, aluminium powder 0.2~1
Part, 0.5~2 part of additive, 0.2~1 part of foam stabilizer, 0.5~2 part of fibrous material, the ratio of mud are 0.25~0.75, additive packet
Include coagulant, early strength agent, water-reducing agent.
Preferably, coagulant is ore deposit crystalline flour；Early strength agent for triethanolamine, sodium sulphate, sodium nitrate, calcium nitrate, sodium nitrite,
One or more of calcium nitrite；Water-reducing agent is one in naphthalene water reducer, poly carboxylic acid series water reducer, fatty family water-reducing agent
Kind is several；Foam stabilizer is one or more of Negel, fatty alcohol polyoxyethylene ether, sodium alkyl benzene sulfonate；Water
Mud is portland cement；The specific surface area of aluminium powder is 4000cm2/ g~6000cm2/g；Ore deposit crystalline flour be ground slag powder, specific surface
Product is 300cm2/ g~700cm2/g；Fibrous material is polypropylene fibre, steel fibre, carbon fiber, one kind in wood-fibred or several
Kind, and the specification of fibrous material is：Length 3cm~6cm, diameter 1mm~3mm.
A kind of preparation method of high-strength light air entrained concrete, includes the following steps：
(1) it weighs in water, cement, flyash, gypsum adding apparatus and is uniformly mixed successively, obtain slurry A；
(2) additive, fibrous material, lime are weighed and is added in slurry A after being uniformly mixed, obtains slurry B；
(3) aluminium powder, foam stabilizer are weighed and is added in slurry B after being uniformly mixed, obtains cast slurry；
(4) cast slurry is poured into a mould, is rested, cutting process, obtain green body, wherein, the temperature of cast for 45 DEG C~
55℃；
(5) green body is subjected to steam press maintenance processing, obtains Aerated concrete products, wherein, the condition of steam press maintenance is：Temperature
200 DEG C~210 DEG C of degree, pressure 0.8MPa~1.2MPa, time 9h~10h.
Utilize having the beneficial effect that for high-strength light air entrained concrete of the present invention and preparation method thereof：Pass through basic slurry raw material
With the mixing in proportion of early strength agent, foam stabilizer, aluminium powder, the resistance to compression that improves product is shockproof, thermal and insulating performance；Pass through coagulant
The blood coagulation enhancing effect of ore deposit crystalline flour, effectively increases the compression strength of product, while decreases the dosage of cement and lime, mitigates production
The quality of product；The ratio of mud is controlled by water-reducing agent, reduces loss of slump, improves the workability of product；It is improved by early strength agent
The intensity of product early stage；By the combination of fibrous material and other raw materials, product mechanical strength is further enhanced；Pass through raw material
Between mutual synergistic effect, prepare the high air entrained concrete of light weight, intensity；For the preparation process of the product raw material
Operability is strong, and difficulty of construction is low, short construction period, construction cost are low, has good application prospect.
Specific embodiment
Embodiment 1
A kind of air entrained concrete of high-strength light, including cement 100kg, flyash 400kg, lime 150kg, gypsum
10kg, aluminium powder 0.5kg, additive 1kg, foam stabilizer 0.8kg, fibrous material 1kg, the ratio of mud 0.55, additive include promoting solidifying
Agent, early strength agent, water-reducing agent；
Wherein, coagulant is ore deposit crystalline flour, and early strength agent includes triethanolamine, sodium nitrate, calcium nitrate, calcium nitrite, water-reducing agent
For poly carboxylic acid series water reducer, foam stabilizer includes Negel, fatty alcohol polyoxyethylene ether, sodium alkyl benzene sulfonate, and cement is
Portland cement, the specific surface area of aluminium powder is 4500cm2/ g~5500cm2/ g, ore deposit crystalline flour are ground slag powder, and specific surface area is
400cm2/ g~500cm2/ g, fibrous material includes polypropylene fibre, carbon fiber, and the specification of fibrous material is：Length 4cm~
5cm, diameter 1mm~2mm.
A kind of preparation method of high-strength light air entrained concrete, includes the following steps：
(1) it weighs in water, cement, flyash, gypsum adding apparatus and is uniformly mixed successively, obtain slurry A；
(2) additive, fibrous material, lime are weighed and is added in slurry A after being uniformly mixed, obtains slurry B；
(3) aluminium powder, foam stabilizer are weighed and is added in slurry B after being uniformly mixed, obtains cast slurry；
(4) cast slurry poured into a mould, rested, cutting process, obtain green body, wherein, the temperature of cast is 50 DEG C；
(5) green body is subjected to steam press maintenance processing, obtains Aerated concrete products, wherein, the condition of steam press maintenance is：Temperature
210 DEG C of degree, pressure 1MPa, time 8h.
By the air entrained concrete prepared by above-described embodiment, has good thermal and insulating performance, and its compression strength
For 4.3MPa.
Embodiment 2
A kind of air entrained concrete of high-strength light, including cement 80kg, flyash 200kg, lime 250kg, gypsum 20kg,
Aluminium powder 1kg, additive 2kg, foam stabilizer 0.2kg, fibrous material 0.5kg, the ratio of mud 0.75, additive include coagulant, morning
Strong agent, water-reducing agent；
Wherein, coagulant is ore deposit crystalline flour, and early strength agent includes triethanolamine, sodium nitrate, calcium nitrate, and water-reducing agent is naphthalene system diminishing
Agent, foam stabilizer include fatty alcohol polyoxyethylene ether, sodium alkyl benzene sulfonate, and cement is portland cement, and the specific surface area of aluminium powder is
4000cm2/ g~5000cm2/ g, ore deposit crystalline flour be ground slag powder, specific surface area 600cm2/ g~700cm2/ g, fibrous material
Specification including polypropylene fibre, steel fibre, carbon fiber, and fibrous material is：Length 3cm~4cm, diameter 2mm~3mm.
A kind of preparation method of high-strength light air entrained concrete, includes the following steps：
(1) it weighs in water, cement, flyash, gypsum adding apparatus and is uniformly mixed successively, obtain slurry A；
(2) additive, fibrous material, lime are weighed and is added in slurry A after being uniformly mixed, obtains slurry B；
(3) aluminium powder, foam stabilizer are weighed and is added in slurry B after being uniformly mixed, obtains cast slurry；
(4) cast slurry poured into a mould, rested, cutting process, obtain green body, wherein, the temperature of cast is 55 DEG C；
(5) green body is subjected to steam press maintenance processing, obtains Aerated concrete products, wherein, the condition of steam press maintenance is：Temperature
200 DEG C of degree, pressure 0.8MPa, time 10h.
By the air entrained concrete prepared by above-described embodiment, has good thermal and insulating performance, and its compression strength
For 4.1MPa.
Embodiment 3
A kind of air entrained concrete of high-strength light, including cement 120kg, flyash 600kg, lime 50kg, gypsum 2kg,
Aluminium powder 0.2kg, additive 0.5kg, foam stabilizer 1kg, fibrous material 2kg, the ratio of mud 0.25, additive include coagulant, morning
Strong agent, water-reducing agent；
Wherein, coagulant is ore deposit crystalline flour, and early strength agent includes triethanolamine, calcium nitrate, sodium nitrite, calcium nitrite, diminishing
Agent is fatty family water-reducing agent, and foam stabilizer includes Negel, fatty alcohol polyoxyethylene ether, and cement is portland cement,
The specific surface area of aluminium powder is 5000cm2/ g~6000cm2/ g, ore deposit crystalline flour be ground slag powder, specific surface area 300cm2/ g~
400cm2/ g, fibrous material includes polypropylene fibre, carbon fiber, wood-fibred, and the specification of fibrous material is：Length 5cm~
6cm, diameter 1mm~2mm.
A kind of preparation method of high-strength light air entrained concrete, includes the following steps：
(1) it weighs in water, cement, flyash, gypsum adding apparatus and is uniformly mixed successively, obtain slurry A；
(2) additive, fibrous material, lime are weighed and is added in slurry A after being uniformly mixed, obtains slurry B；
(3) aluminium powder, foam stabilizer are weighed and is added in slurry B after being uniformly mixed, obtains cast slurry；
(4) cast slurry poured into a mould, rested, cutting process, obtain green body, wherein, the temperature of cast is 45 DEG C；
(5) green body is subjected to steam press maintenance processing, obtains Aerated concrete products, wherein, the condition of steam press maintenance is：Temperature
210 DEG C of degree, pressure 1.2MPa, time 9h.
By the air entrained concrete prepared by above-described embodiment, has good thermal and insulating performance, and its compression strength
For 3.8MPa.
Embodiment 4
A kind of air entrained concrete of high-strength light, including cement 100kg, flyash 400kg, lime 150kg, gypsum
10kg, aluminium powder 0.5kg, additive 1kg, foam stabilizer 0.8kg, the ratio of mud 0.55, additive include early strength agent, water-reducing agent；
Wherein, early strength agent includes triethanolamine, calcium nitrate, sodium nitrite, calcium nitrite, and water-reducing agent is fatty family diminishing
Agent, foam stabilizer include Negel, fatty alcohol polyoxyethylene ether, and cement is portland cement, and the specific surface area of aluminium powder is
5000cm2/ g~6000cm2/g。
A kind of preparation method of high-strength light air entrained concrete, includes the following steps：
(1) it weighs in water, cement, flyash, gypsum adding apparatus and is uniformly mixed successively, obtain slurry A；
(2) additive, lime are weighed and is added in slurry A after being uniformly mixed, obtains slurry B；
(3) aluminium powder, foam stabilizer are weighed and is added in slurry B after being uniformly mixed, obtains cast slurry；
(4) cast slurry poured into a mould, rested, cutting process, obtain green body, wherein, the temperature of cast is 45 DEG C；
(5) green body is subjected to steam press maintenance processing, obtains Aerated concrete products, wherein, the condition of steam press maintenance is：Temperature
210 DEG C of degree, pressure 1.2MPa, time 9h.
Pass through the air entrained concrete prepared by above-described embodiment, compression strength 2.2MPa.
It can be seen that by the data in comparative example 1-4, embodiment 1-3 is high-strength light air entrained concrete of the present invention
Embodiment, embodiment 4 are comparative example, be can be seen that by contrast test data, the resistance to compression of air entrained concrete of the invention
Intensity is up to 3.8MPa~4.3MPa, has great promotion relative to the 2.2MPa of comparative example, can obtain adding for high intensity
Gas concrete effectively increases the application range of the product.
Claims (10)
1. a kind of air entrained concrete of high-strength light, which is characterized in that include the raw material of following mass fraction：
It is 80~120 parts of cement, 200~600 parts of flyash, 50~250 parts of lime, 2~20 parts of gypsum, 0.2~1 part of aluminium powder, outer
Add 0.5~2 part of agent, 0.2~1 part of foam stabilizer, 0.5~2 part of fibrous material, the ratio of mud is 0.25~0.75, the additive packet
Include coagulant, early strength agent, water-reducing agent.
2. a kind of air entrained concrete of high-strength light as described in claim 1, which is characterized in that the coagulant is brilliant for ore deposit
Powder.
3. a kind of air entrained concrete of high-strength light as described in claim 1, which is characterized in that the early strength agent is three ethyl alcohol
One or more of amine, sodium sulphate, sodium nitrate, calcium nitrate, sodium nitrite, calcium nitrite.
4. a kind of air entrained concrete of high-strength light as described in claim 1, which is characterized in that the water-reducing agent subtracts for naphthalene system
One or more of aqua, poly carboxylic acid series water reducer, fatty family water-reducing agent.
5. a kind of air entrained concrete of high-strength light as described in claim 1, which is characterized in that the foam stabilizer is alkylnaphthalene
One or more of sodium sulfonate, fatty alcohol polyoxyethylene ether, sodium alkyl benzene sulfonate.
6. a kind of air entrained concrete of high-strength light as described in claim 1, which is characterized in that the cement is silicate cement
Mud.
A kind of 7. air entrained concrete of high-strength light as described in claim 1, which is characterized in that the specific surface area of the aluminium powder
For 4000cm2/ g~6000cm2/g。
8. a kind of air entrained concrete of high-strength light as claimed in claim 2, which is characterized in that the ore deposit crystalline flour is levigate ore deposit
Ground-slag, specific surface area 300cm2/ g~700cm2/g。
9. a kind of air entrained concrete of high-strength light as described in claim 1, which is characterized in that the fibrous material is poly- third
One or more of alkene fiber, steel fibre, carbon fiber, wood-fibred, the specification of the fibrous material are：Length 3cm~6cm,
Diameter 1mm~3mm.
10. a kind of preparation method of the high-strength light air entrained concrete as described in any one of claim 1~9, which is characterized in that
Include the following steps：
(1) it weighs in water, cement, flyash, gypsum adding apparatus and is uniformly mixed successively, obtain slurry A；
(2) additive, fibrous material, lime are weighed and is added in slurry A after being uniformly mixed, obtains slurry B；
(3) aluminium powder, foam stabilizer are weighed and is added in slurry B after being uniformly mixed, obtains cast slurry；
(4) cast slurry is poured into a mould, is rested, cutting process, obtain green body, wherein, the temperature of the cast for 45 DEG C~
55℃；
(5) green body is subjected to steam press maintenance processing, obtains Aerated concrete products, wherein, the condition of the steam press maintenance is：Temperature
200 DEG C~210 DEG C of degree, pressure 0.8MPa~1.2MPa, time 9h~10h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711226893.1A CN108178591A (en) | 2017-11-29 | 2017-11-29 | A kind of air entrained concrete of high-strength light and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711226893.1A CN108178591A (en) | 2017-11-29 | 2017-11-29 | A kind of air entrained concrete of high-strength light and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109747025A (en) * | 2019-03-19 | 2019-05-14 | 贵州师范大学 | Improve the mixing proportion design method of old long-pending powder ash air-entrained concrete flexural strength |
| CN109851296A (en) * | 2019-01-17 | 2019-06-07 | 清远市恒建环保建材有限公司 | Pervious concrete aerated bricks |
| CN110498642A (en) * | 2019-09-05 | 2019-11-26 | 许言言 | A kind of sandwich parts light energy conservation material, preparation method and applications |
| CN112661529A (en) * | 2021-01-19 | 2021-04-16 | 辽宁鸿晟科技有限公司 | Aerated concrete building material and production process thereof |
| CN114075064A (en) * | 2020-08-20 | 2022-02-22 | 四川上锦雅筑绿色科技有限公司 | Method for preparing aerated plate by using multistage aluminum powder and aerated plate prepared by method |
| CN114149237A (en) * | 2021-11-30 | 2022-03-08 | 宁夏渤泰新材料科技有限公司 | Fly ash aerated concrete block added with triethanolamine and preparation method |
| CN116332599A (en) * | 2023-03-21 | 2023-06-27 | 山东中岩重科新材料科技有限公司 | Light high-strength foam concrete and preparation method thereof |
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| CN104108912A (en) * | 2014-06-19 | 2014-10-22 | 广东省建筑科学研究院 | Lightweight high-performance foam concrete and preparation method thereof |
| CN105693274A (en) * | 2016-02-02 | 2016-06-22 | 衡阳恒裕轻质保温材料有限责任公司 | Aerated concrete and preparation method thereof |
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2017
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Patent Citations (2)
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| CN104108912A (en) * | 2014-06-19 | 2014-10-22 | 广东省建筑科学研究院 | Lightweight high-performance foam concrete and preparation method thereof |
| CN105693274A (en) * | 2016-02-02 | 2016-06-22 | 衡阳恒裕轻质保温材料有限责任公司 | Aerated concrete and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109851296A (en) * | 2019-01-17 | 2019-06-07 | 清远市恒建环保建材有限公司 | Pervious concrete aerated bricks |
| CN109747025A (en) * | 2019-03-19 | 2019-05-14 | 贵州师范大学 | Improve the mixing proportion design method of old long-pending powder ash air-entrained concrete flexural strength |
| CN110498642A (en) * | 2019-09-05 | 2019-11-26 | 许言言 | A kind of sandwich parts light energy conservation material, preparation method and applications |
| CN114075064A (en) * | 2020-08-20 | 2022-02-22 | 四川上锦雅筑绿色科技有限公司 | Method for preparing aerated plate by using multistage aluminum powder and aerated plate prepared by method |
| CN112661529A (en) * | 2021-01-19 | 2021-04-16 | 辽宁鸿晟科技有限公司 | Aerated concrete building material and production process thereof |
| CN114149237A (en) * | 2021-11-30 | 2022-03-08 | 宁夏渤泰新材料科技有限公司 | Fly ash aerated concrete block added with triethanolamine and preparation method |
| CN116332599A (en) * | 2023-03-21 | 2023-06-27 | 山东中岩重科新材料科技有限公司 | Light high-strength foam concrete and preparation method thereof |
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Application publication date: 20180619 |