CN111039633A - Production method of aerated brick with few surface pores - Google Patents
Production method of aerated brick with few surface pores Download PDFInfo
- Publication number
- CN111039633A CN111039633A CN201811182599.XA CN201811182599A CN111039633A CN 111039633 A CN111039633 A CN 111039633A CN 201811182599 A CN201811182599 A CN 201811182599A CN 111039633 A CN111039633 A CN 111039633A
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- CN
- China
- Prior art keywords
- aerated brick
- cement
- brick
- parts
- slurry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5076—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with masses bonded by inorganic 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/65—Coating or impregnation with inorganic materials
Abstract
The invention relates to the technical field of aerated bricks, in particular to a production method of an aerated brick with few surface pores, which comprises the following steps of a, mixing and stirring raw materials according to a ratio to obtain slurry; b. adding air-entrapping aluminum powder into the slurry, stirring, and pouring into a mold frame; c. gas generation and initial setting; d. cutting the green body; e. spraying cement paste; f. steam pressure curing; g. the aerated brick is naturally cured, cement paste is sprayed on the surface of the aerated brick before autoclaved curing of the aerated brick, the cement paste can penetrate from outside to inside for a certain thickness, and forms a bonding layer with the aerated brick, so that the surface performance of the aerated brick is improved, the bonding layer has higher hardness and is not easy to generate powder, and the surface layer is easy to bond with mortar when a wall is built.
Description
Technical Field
The invention relates to the technical field of aerated bricks, in particular to a production method of an aerated brick with few surface pores.
Background
The aerated brick, i.e. the autoclaved aerated concrete block, is a light porous silicate product produced by a high-temperature autoclaved equipment process, contains a large amount of uniform and fine air holes after gas generation, has the advantages of light weight, high strength, durability, heat preservation, sound absorption, water resistance, shock resistance, rapid construction (compared with clay sintered bricks), strong processability and the like, and is an excellent novel wall material.
The aerated concrete blocks have the advantages and are more and more widely used in building engineering, but the aerated bricks also have problems, such as easy dusting of the surface and difficult bonding with mortar, and in order to solve the problems, the aerated bricks are built by special mortar with good bonding property when being used for building walls, cement, lime and mortar can be mixed with the mortar, the consistency of the mortar is preferably 5 cm-7 cm, and before plastering of inner walls and bottoming of outer walls, the walls are subjected to roughening treatment and the dola fibers are added into plastering mortar.
Disclosure of Invention
The invention aims to provide a method for producing an aerated brick with few surface pores aiming at the defects of the prior art, which can improve the surface performance, is easier to bond with mortar and has higher surface strength.
The technical scheme adopted by the invention for solving the technical problems is as follows: a production method of an aerated brick with few surface pores comprises the following steps: a. mixing and stirring fine sand, fly ash, siliceous slag, lime, cement, water and other aggregates according to a certain proportion to obtain slurry; b. keeping the temperature of the slurry at 45-55 ℃, adding air-entrapping aluminum powder, stirring for 1 minute, and pouring the slurry into an air-entrapping brick mold frame; c. sending the mold frame and the slurry inside the mold frame into a primary curing chamber for gas generation and primary setting, wherein the temperature of the primary curing chamber is 50-60 ℃, the primary curing time is 2 hours, and the slurry is solidified into a blank; d. separating the green body from the mold frame, and cutting the green body to obtain a brick block; e. mixing cement and water to prepare cement paste, and spraying the cement paste on the inner side and the outer side of the brick; f. conveying the bricks to an autoclave for autoclave curing, wherein the pressure is 1.2-1.8 Mpa, the temperature is 100-120 ℃, and the autoclave time is 6 hours; g. and stacking the bricks outdoors, and naturally curing for more than 10 days to obtain the finished aerated brick.
Preferably, the fine sand, the fly ash, the siliceous slag, the lime, the cement and the water are in parts by weight: 0-30 parts of fine sand, 15-25 parts of fly ash, 0-30 parts of siliceous slag, 20-40 parts of lime, 25-35 parts of cement, 300-500 parts of water and less than 15% of other aggregate in total weight.
Preferably, the air-entraining aluminum powder comprises 18% of air entraining agent, 18% of foam stabilizer, 12% of water reducing agent and the balance aluminum powder.
Preferably, the mesh number of the fine sand, the fly ash, the siliceous slag, the lime, the cement and other aggregates is 40-150 meshes.
Preferably, in the step e, the weight ratio of the cement to the water is 0.5-1: 1.
the invention has the beneficial effects that: according to the invention, before autoclaved curing of the aerated brick, cement slurry is sprayed on the surface of the aerated brick, the cement slurry can penetrate a certain thickness from outside to inside and forms a bonding layer with the aerated brick, so that the surface performance of the aerated brick is improved, the bonding layer has high hardness, is not easy to generate powder, and is easy to bond with mortar.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the scope of the present invention is not limited thereto.
The production method of the aerated brick with few surface pores in the embodiment comprises the following steps: a. mixing and stirring fine sand, fly ash, siliceous slag, lime, cement, water and other aggregates according to a certain proportion to obtain slurry. b. And (3) maintaining the temperature of the slurry at 45-55 ℃, adding the air-entraining aluminum powder, stirring for 1 minute, and pouring the slurry into an air-entraining brick mold frame, wherein the air-entraining aluminum powder can be the existing air-entraining aluminum powder, and can also be prepared according to the proportion of 18% of air-entraining agent, 18% of foam stabilizer, 12% of water reducing agent and the balance of aluminum powder. c. And (3) sending the die frame and the slurry inside the die frame into a primary curing chamber for gas generation and primary setting, wherein the temperature of the primary curing chamber is 50-60 ℃, the primary curing time is 2 hours, and the slurry is solidified into a blank. d. And separating the green body from the die frame, and cutting the green body to obtain the brick. e. And (3) dipping, mixing cement and water to prepare cement paste, spraying the cement paste on the inner side and the outer side of the brick, and after dipping, enabling the cement paste to penetrate into the surface layer to a certain thickness. f. And (3) conveying the bricks to an autoclave for autoclave curing, wherein the pressure is 1.2-1.8 Mpa, the temperature is 100-120 ℃, and the autoclave time is 6 hours. g. And stacking the bricks outdoors, and naturally curing for more than 10 days to obtain the finished aerated brick.
Further, the fine sand, the fly ash, the siliceous slag, the lime, the cement and the water are in parts by weight: 0-30 parts of fine sand, 15-25 parts of fly ash, 0-30 parts of siliceous slag, 20-40 parts of lime, 25-35 parts of cement, 300-500 parts of water and less than 15% of other aggregate in total weight.
The mesh number of the fine sand, the fly ash, the siliceous slag, the lime, the cement and other aggregates is 40-150 meshes.
Further, in the step e, the weight ratio of the cement to the water is 0.5-1: 1, stirring the mixture evenly.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. A production method of an aerated brick with few surface pores is characterized by comprising the following steps: the method comprises the following steps:
a. mixing and stirring fine sand, fly ash, siliceous slag, lime, cement, water and other aggregates according to a certain proportion to obtain slurry;
b. keeping the temperature of the slurry at 45-55 ℃, adding air-entrapping aluminum powder, stirring for 1 minute, and pouring the slurry into an air-entrapping brick mold frame;
c. sending the mold frame and the slurry inside the mold frame into a primary curing chamber for gas generation and primary setting, wherein the temperature of the primary curing chamber is 50-60 ℃, the primary curing time is 2 hours, and the slurry is solidified into a blank;
d. separating the green body from the mold frame, and cutting the green body to obtain a brick block;
e. mixing cement and water to prepare cement paste, and spraying the cement paste on the inner side and the outer side of the brick;
f. conveying the bricks to an autoclave for autoclave curing, wherein the pressure is 1.2-1.8 Mpa, the temperature is 100-120 ℃, and the autoclave time is 6 hours;
g. and stacking the bricks outdoors, and naturally curing for more than 10 days to obtain the finished aerated brick.
2. The method for producing the aerated brick with few surface pores according to claim 1, wherein the method comprises the following steps: the fine sand, the fly ash, the siliceous slag, the lime, the cement and the water are in parts by weight: 0-30 parts of fine sand, 15-25 parts of fly ash, 0-30 parts of siliceous slag, 20-40 parts of lime, 25-35 parts of cement, 300-500 parts of water and less than 15% of other aggregate in total weight.
3. The method for producing the aerated brick with few surface pores according to claim 1, wherein the method comprises the following steps: the air-entraining aluminum powder comprises 18% of air entraining agent, 18% of foam stabilizer, 12% of water reducing agent and the balance aluminum powder.
4. The method for producing the aerated brick with few surface pores according to claim 1, wherein the method comprises the following steps: the mesh number of the fine sand, the fly ash, the siliceous slag, the lime, the cement and other aggregates is 40-150 meshes.
5. The method for producing the aerated brick with few surface pores according to claim 1, wherein the method comprises the following steps: in the step e, the weight ratio of the cement to the water is 0.5-1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811182599.XA CN111039633A (en) | 2018-10-11 | 2018-10-11 | Production method of aerated brick with few surface pores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811182599.XA CN111039633A (en) | 2018-10-11 | 2018-10-11 | Production method of aerated brick with few surface pores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111039633A true CN111039633A (en) | 2020-04-21 |
Family
ID=70229108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811182599.XA Withdrawn CN111039633A (en) | 2018-10-11 | 2018-10-11 | Production method of aerated brick with few surface pores |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111039633A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112794679A (en) * | 2021-04-15 | 2021-05-14 | 中山市星宙环保技术有限公司 | Novel brick manufactured by using waste liquid cement paste and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789598A (en) * | 2004-12-16 | 2006-06-21 | 邱则有 | Light reinforced concrete board |
| KR100809804B1 (en) * | 2006-09-28 | 2008-03-04 | 한국전력공사 | Light foam concrete composition using bottom ash, used for sound absorbtion materials, light foam concrete product employing the same and the manufacturing method thereof |
| CN102167619A (en) * | 2011-01-25 | 2011-08-31 | 河海大学 | Low-thermal-conductivity aerated concrete and preparation method thereof |
| CN104557107A (en) * | 2014-12-16 | 2015-04-29 | 山东益丰生化环保股份有限公司盛源新型建材分公司 | Light-weight autoclaved aerated concrete and preparation process thereof |
| CN108341647A (en) * | 2018-04-26 | 2018-07-31 | 合肥金云新材料有限公司 | A kind of air-entrained concrete building block and preparation method thereof |
-
2018
- 2018-10-11 CN CN201811182599.XA patent/CN111039633A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789598A (en) * | 2004-12-16 | 2006-06-21 | 邱则有 | Light reinforced concrete board |
| KR100809804B1 (en) * | 2006-09-28 | 2008-03-04 | 한국전력공사 | Light foam concrete composition using bottom ash, used for sound absorbtion materials, light foam concrete product employing the same and the manufacturing method thereof |
| CN102167619A (en) * | 2011-01-25 | 2011-08-31 | 河海大学 | Low-thermal-conductivity aerated concrete and preparation method thereof |
| CN104557107A (en) * | 2014-12-16 | 2015-04-29 | 山东益丰生化环保股份有限公司盛源新型建材分公司 | Light-weight autoclaved aerated concrete and preparation process thereof |
| CN108341647A (en) * | 2018-04-26 | 2018-07-31 | 合肥金云新材料有限公司 | A kind of air-entrained concrete building block and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112794679A (en) * | 2021-04-15 | 2021-05-14 | 中山市星宙环保技术有限公司 | Novel brick manufactured by using waste liquid cement paste and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200421 |