CN110803936A - Foamed concrete, preparation method and prefabricated foamed concrete heat-insulation wall - Google Patents
Foamed concrete, preparation method and prefabricated foamed concrete heat-insulation wall Download PDFInfo
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- CN110803936A CN110803936A CN201911214068.9A CN201911214068A CN110803936A CN 110803936 A CN110803936 A CN 110803936A CN 201911214068 A CN201911214068 A CN 201911214068A CN 110803936 A CN110803936 A CN 110803936A
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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
- C04B28/04—Portland cements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/38—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels
- E04C2/382—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels with a frame of concrete or other stone-like substance
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/40—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of a number of smaller components rigidly or movably connected together, e.g. interlocking, hingedly connected of particular shape, e.g. not rectangular of variable shape or size, e.g. flexible or telescopic panels
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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
- 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
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- Porous Artificial Stone Or Porous Ceramic Products (AREA)
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Abstract
According to the foamed concrete, the preparation method and the prefabricated foamed concrete heat-insulation wall, the foamed concrete is added into the heat-insulation wall, so that the self weight of the wall can be reduced, and the heat-insulation effect can be achieved. Secondly, the foamed concrete adopts a prefabricated form, so that the engineering construction time is greatly reduced. And the structure can store energy in the form of phase change latent heat, realize the conversion of the energy between different time and space positions and can preserve and insulate heat, and the foamed concrete heat-preservation precast slab corresponds to the groove part at the bottom end through the bulge at the top end and perfectly fits, and the foamed concrete heat-preservation precast slab can be directly inserted into the corresponding position in a splicing form, so that the construction is convenient and rapid. And the structure is convenient to disassemble, and a large amount of manpower is saved.
Description
Technical Field
The invention belongs to the technical field of concrete, and relates to foamed concrete, a preparation method and a prefabricated foamed concrete heat-insulating wall.
Background
The concrete is a stone material which is prepared by uniformly stirring, compactly forming, curing and hardening a cementing material, granular aggregate, water, necessary additives and admixtures according to a certain proportion, is a common civil engineering material, has the advantages of high compressive strength, good durability and the like, but in actual use, the heat-insulating performance of the stone material is different from that of high-molecular materials such as foam and the like, so that various manufacturers reform the material and the preparation process of the concrete, the formed concrete forms a honeycomb-shaped bubble type, the weight is reduced, the heat-insulating effect is improved, but in some sites with lower environmental temperature, the construction of the foamed concrete is inconvenient, and if a product which is produced in advance and only needs to be assembled on site can be produced, the working efficiency can be greatly improved, particularly in a mobile house, In factory buildings and the like, a novel plate is more needed. And the existing concrete structure can not play an effective heat preservation effect, and especially in winter, the temperature difference between the indoor sunny side and the indoor cloudy side is large, so that the indoor temperature is unbalanced, which is a problem to be solved urgently.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide the foamed concrete, the preparation method and the prefabricated foamed concrete heat-insulation wall, which are light in structure and have better heat-insulation effect.
The invention provides a foaming concrete which comprises the following components in parts by weight: 210-270 parts of ordinary portland cement, 80-100 parts of fly ash, 30-55 parts of ash calcium powder, 3-5 parts of silica fume, 180 parts of bentonite composite cementing material, 3-6 parts of redispersible rubber powder, 0.5-1 part of hydroxypropyl methyl cellulose, 0.5-1 part of reinforcing fiber, 60-100 parts of paraffin, 180 parts of water, 30-40 parts of expanded perlite, 50-70 parts of diatomite, 3-5 parts of light aggregate and 0.5-1 part of air entraining agent.
In the foamed concrete of the invention, the redispersible rubber powder is protein or starch.
In the foamed concrete of the invention, the lightweight aggregate is composed of vitrified micro bubbles, waste polystyrene foam particles and hollow glass micro bubbles; or consists of vitrified micro bubbles, phenolic foam particles and hollow glass particles.
In the foamed concrete of the present invention, the reinforcing fiber is a carbon fiber or an aramid fiber
In the foamed concrete of the present invention, the air-entraining agent is an alkylphenol-ethylene oxide complex.
The invention provides a preparation method of foamed concrete, which comprises the following steps:
step 1: weighing the following components in proportion: 210-270 parts of ordinary portland cement, 80-100 parts of fly ash, 30-55 parts of ash calcium powder, 3-5 parts of silica fume, 180 parts of bentonite composite cementing material, 3-6 parts of redispersible rubber powder, 0.5-1 part of hydroxypropyl methyl cellulose, 0.5-1 part of reinforcing fiber, 60-100 parts of paraffin, 180 parts of water, 30-40 parts of expanded perlite, 50-70 parts of diatomite, 3-5 parts of light aggregate and 0.5-1 part of air entraining agent;
step 2: placing ordinary portland cement, fly ash, sierozem powder, silica fume and water in a cement mortar stirrer to be uniformly stirred, and then pouring the bentonite composite cementing material, the redispersible rubber powder, the hydroxypropyl methylcellulose and the reinforced fiber into the cement mortar stirrer to be uniformly stirred to obtain mixture mortar;
and step 3: putting the expanded perlite and the diatomite into paraffin under liquid state, adsorbing the paraffin by the expanded perlite and the diatomite to prepare a shaped phase-change material, and then doping the shaped phase-change material into the mixture mortar to be uniformly stirred;
and 4, step 4: adding the lightweight aggregate into the mixture mortar and continuously stirring;
and 5: and adding the air entraining agent into the mixture mortar, and stirring to prepare the foamed concrete.
The invention also provides a prefabricated foam concrete heat-insulation wall which comprises a plurality of foam concrete heat-insulation prefabricated plates and two concrete frames, wherein the two ends of the heat-insulation wall body are respectively inserted into the corresponding concrete frames after the plurality of foam concrete heat-insulation prefabricated plates are spliced to form the heat-insulation wall body; the foamed concrete heat-insulating precast slab comprises: the prefabricated plate comprises a prefabricated plate main body and connecting bodies welded on two sides of the prefabricated plate main body;
the prefabricated slab main body is composed of a nine-palace-lattice-shaped frame formed by welding a plurality of snowflake boards and foamed concrete filled in the nine-palace lattice, the connecting body is formed by welding the snowflake boards, the interior of the connecting body is filled with the foamed concrete, and the concrete frame is provided with a notch matched with the shape of the connecting body; the prefabricated slab comprises a prefabricated slab main body and is characterized in that a bulge is arranged at the top end of the prefabricated slab main body, and a groove matched with the bulge in shape is arranged at the corresponding position of the bottom end of the prefabricated slab main body, so that the adjacent foamed concrete heat-insulation prefabricated slabs are spliced.
In the prefabricated foam concrete heat-insulation wall, the foam concrete comprises the following components in percentage by weight: 210-270 parts of ordinary portland cement, 80-100 parts of fly ash, 30-55 parts of ash calcium powder, 3-5 parts of silica fume, 180 parts of bentonite composite cementing material, 3-6 parts of redispersible rubber powder, 0.5-1 part of hydroxypropyl methyl cellulose, 0.5-1 part of reinforcing fiber, 60-100 parts of paraffin, 180 parts of water, 30-40 parts of expanded perlite, 50-70 parts of diatomite, 3-5 parts of light aggregate and 0.5-1 part of air entraining agent.
In the prefabricated foamed concrete thermal insulation wall of the present invention, both surfaces of the prefabricated panel main body are coated with cement mortar layers.
In the prefabricated foamed concrete heat-insulating wall, the prefabricated plate main body and the connecting bodies welded on the two sides of the prefabricated plate main body form an I-shaped structure.
According to the foamed concrete, the light aggregate consisting of the vitrified micro bubbles, the waste polystyrene foam particles and the hollow glass micro bubbles is added, so that the gaps among the concrete are increased, and the heat insulation effect is further improved; meanwhile, paraffin, expanded perlite and diatomite are added to prepare a gap phase change material, so that the solid-liquid state can be changed according to different temperatures, and heat absorption or heat release is realized, so that the heat insulation effect is realized; the air entraining agent is dissolved in water and then added into the concrete mixture, and a large amount of micro bubbles can be generated in the stirring process to prepare the foaming concrete so as to improve the heat preservation effect; meanwhile, the bentonite composite cementing material, the hydroxypropyl methylcellulose and the reinforcing fiber are added, so that the strength of the concrete can be enhanced while the heat preservation effect is improved, and the light, heat-preservation and high-strength foamed concrete is further prepared.
According to the invention, the foaming concrete is added into the wall body, so that the self weight of the wall can be reduced, and the effects of heat preservation and heat insulation can be achieved. Secondly, the foamed concrete adopts a prefabricated form, so that the engineering construction time is greatly reduced. And the structure can store energy in the form of phase change latent heat, realize the conversion of the energy between different time and space positions and can preserve and insulate heat, and the foamed concrete heat-preservation precast slab corresponds to the groove part at the bottom end through the bulge at the top end and perfectly fits, and the foamed concrete heat-preservation precast slab can be directly inserted into the corresponding position in a splicing form, so that the construction is convenient and rapid. And the structure is convenient to disassemble, and a large amount of manpower is saved.
Drawings
FIG. 1 is a structural view of a precast foamed concrete thermal insulation wall according to the present invention;
FIG. 2 is a sectional view of the prefabricated foamed concrete thermal insulation wall of the present invention;
FIG. 3 is a structural view of a foamed concrete insulating precast slab according to the present invention;
fig. 4 is a structural view of a prefabricated panel main body of the present invention.
Detailed Description
The invention relates to a foaming concrete, which comprises the following components in percentage by weight: 210-270 parts of ordinary portland cement, 80-100 parts of fly ash, 30-55 parts of ash calcium powder, 3-5 parts of silica fume, 180 parts of bentonite composite cementing material, 3-6 parts of redispersible rubber powder, 0.5-1 part of hydroxypropyl methyl cellulose, 0.5-1 part of reinforcing fiber, 60-100 parts of paraffin, 180 parts of water, 30-40 parts of expanded perlite, 50-70 parts of diatomite, 3-5 parts of light aggregate and 0.5-1 part of air entraining agent.
The redispersible rubber powder is protein or starch. The lightweight aggregate consists of vitrified micro-beads, waste polystyrene foam particles and hollow glass micro-beads; or consists of vitrified micro bubbles, phenolic foam particles and hollow glass particles. The reinforced fiber is carbon fiber or aramid fiber. The air entraining agent is alkylphenol-ethylene oxide complex.
The invention discloses a preparation method of foamed concrete, which is characterized by comprising the following steps:
step 1: weighing the following components in proportion: 210-270 parts of ordinary portland cement, 80-100 parts of fly ash, 30-55 parts of ash calcium powder, 3-5 parts of silica fume, 180 parts of bentonite composite cementing material, 3-6 parts of redispersible rubber powder, 0.5-1 part of hydroxypropyl methyl cellulose, 0.5-1 part of reinforcing fiber, 60-100 parts of paraffin, 180 parts of water, 30-40 parts of expanded perlite, 50-70 parts of diatomite, 3-5 parts of light aggregate and 0.5-1 part of air entraining agent;
step 2: placing ordinary portland cement, fly ash, sierozem powder, silica fume and water in a cement mortar stirrer to be uniformly stirred, and then pouring the bentonite composite cementing material, the redispersible rubber powder, the hydroxypropyl methylcellulose and the reinforced fiber into the cement mortar stirrer to be uniformly stirred to obtain mixture mortar;
and step 3: putting the expanded perlite and the diatomite into paraffin under liquid state, adsorbing the paraffin by the expanded perlite and the diatomite to prepare a shaped phase-change material, and then doping the shaped phase-change material into the mixture mortar to be uniformly stirred;
and 4, step 4: adding the lightweight aggregate into the mixture mortar and continuously stirring;
and 5: and adding the air entraining agent into the mixture mortar, and stirring to prepare the foamed concrete.
The present invention is further illustrated by the following examples.
Example 1
The foaming concrete comprises the following components in percentage by weight: 210 parts of ordinary portland cement, 80 parts of fly ash, 30 parts of ash calcium powder, 3 parts of silica fume, 160 parts of bentonite composite cementing material, 3 parts of redispersible rubber powder, 0.5 part of hydroxypropyl methyl cellulose, 0.5 part of reinforcing fiber, 60 parts of paraffin, 150 parts of water, 30 parts of expanded perlite, 50 parts of diatomite, 3 parts of light aggregate and 0.5 part of air entraining agent.
Wherein the redispersible gelatin powder is protein. The lightweight aggregate is composed of vitrified micro-beads, waste polystyrene foam particles and hollow glass micro-beads. The reinforcing fibers are carbon fibers. The air entraining agent is alkylphenol-ethylene oxide complex.
The preparation method of the foamed concrete comprises the following steps:
step 1: weighing according to the component proportion;
step 2: placing ordinary portland cement, fly ash, sierozem powder, silica fume and water in a cement mortar stirrer to be uniformly stirred, and then pouring the bentonite composite cementing material, the redispersible rubber powder, the hydroxypropyl methylcellulose and the reinforced fiber into the cement mortar stirrer to be uniformly stirred to obtain mixture mortar;
and step 3: putting the expanded perlite and the diatomite into paraffin under liquid state, adsorbing the paraffin by the expanded perlite and the diatomite to prepare a shaped phase-change material, and then doping the shaped phase-change material into the mixture mortar to be uniformly stirred;
and 4, step 4: adding the lightweight aggregate into the mixture mortar and continuously stirring;
and 5: and adding the air entraining agent into the mixture mortar, and stirring to prepare the foamed concrete.
Example 2
The foaming concrete comprises the following components in percentage by weight: 240 parts of ordinary portland cement, 90 parts of fly ash, 45 parts of ash calcium powder, 4 parts of silica fume, 170 parts of bentonite composite cementing material, 4.5 parts of redispersible rubber powder, 1 part of hydroxypropyl methyl cellulose, 1 part of reinforcing fiber, 80 parts of paraffin, 165 parts of water, 35 parts of expanded perlite, 60 parts of diatomite, 4 parts of lightweight aggregate and 1 part of air entraining agent.
Wherein the redispersible gelatin powder is protein. The lightweight aggregate is composed of vitrified micro-beads, waste polystyrene foam particles and hollow glass micro-beads. The reinforcing fibers are carbon fibers. The air entraining agent is alkylphenol-ethylene oxide complex.
The method for preparing the foamed concrete was the same as in example 1.
Example 3
The foaming concrete comprises the following components in percentage by weight: 270 parts of ordinary portland cement, 100 parts of fly ash, 55 parts of ash calcium powder, 5 parts of silica fume, 180 parts of bentonite composite cementing material, 6 parts of redispersible rubber powder, 1 part of hydroxypropyl methyl cellulose, 1 part of reinforcing fiber, 100 parts of paraffin, 180 parts of water, 40 parts of expanded perlite, 70 parts of diatomite, 5 parts of light aggregate and 1 part of air entraining agent.
Wherein the redispersible rubber powder is starch. The lightweight aggregate is composed of vitrified micro bubbles, phenolic foam particles and hollow glass particles. The reinforced fiber is aramid fiber. The air entraining agent is alkylphenol-ethylene oxide complex.
The method for preparing the foamed concrete was the same as in example 1.
Referring to fig. 1 and 2, the precast foamed concrete thermal insulation wall of the present invention includes a plurality of foamed concrete thermal insulation precast slabs and two concrete frames 3, wherein the plurality of foamed concrete thermal insulation precast slabs are spliced to form a thermal insulation wall main body, and then both ends of the thermal insulation wall main body are respectively inserted into the corresponding concrete frames 3 to form a complete precast foamed concrete thermal insulation wall. As shown in fig. 3, the foamed concrete insulation precast slab includes: the prefabricated plate comprises a prefabricated plate main body 1 and connecting bodies 2 welded at two sides of the prefabricated plate main body.
As shown in figure 4, the precast slab main body 1 is composed of a nine-grid-shaped frame 11 formed by welding a plurality of snowflake plates and foamed concrete 12 filled in the nine-grid-shaped frame. The connecting body 2 is formed by welding snowflake boards, and the interior of the connecting body is filled with foamed concrete 12. The concrete frame 3 is provided with a notch matched with the shape of the connector 2; the prefabricated slab main body 1 is provided with a protrusion 13 at the top end, a groove 14 matched with the protrusion 13 in shape is arranged at the corresponding position of the bottom end of the prefabricated slab main body 1, and the adjacent foamed concrete heat-insulating prefabricated slabs can be spliced by matching the protrusion 13 with the groove 14. The prefabricated plate main body 1 and the connecting bodies 2 welded on the two sides of the prefabricated plate main body form an I-shaped structure.
In specific implementation, the foamed concrete comprises the following components in percentage by weight: 210-270 parts of ordinary portland cement, 80-100 parts of fly ash, 30-55 parts of ash calcium powder, 3-5 parts of silica fume, 180 parts of bentonite composite cementing material, 3-6 parts of redispersible rubber powder, 0.5-1 part of hydroxypropyl methyl cellulose, 0.5-1 part of reinforcing fiber, 60-100 parts of paraffin, 180 parts of water, 30-40 parts of expanded perlite, 50-70 parts of diatomite, 3-5 parts of light aggregate and 0.5-1 part of air entraining agent.
In specific implementation, the redispersible rubber powder is protein or starch. The lightweight aggregate consists of vitrified micro-beads, waste polystyrene foam particles and hollow glass micro-beads; or consists of vitrified micro bubbles, phenolic foam particles and hollow glass particles. The reinforced fiber is carbon fiber or aramid fiber. The air entraining agent is alkylphenol-ethylene oxide complex.
In specific implementation, two surfaces of the prefabricated slab main body 1 are coated with cement mortar layers.
According to the invention, the bentonite composite cementing material, hydroxypropyl methylcellulose and reinforcing fiber are added into the foamed concrete, so that the strength of the concrete can be enhanced.
The added redispersible rubber powder is hydrolyzed after being dissolved in water, so that the cementation degree can be enhanced, the flowing of concrete is reduced, and the concrete is quickly solidified.
The added lightweight aggregate consisting of the vitrified micro bubbles, the waste polystyrene foam particles and the hollow glass micro bubbles or the lightweight aggregate consisting of the vitrified micro bubbles, the phenolic foam particles and the hollow glass micro bubbles increases the gaps among the concrete, thereby increasing the heat preservation effect.
The paraffin, the expanded perlite and the diatomite are added to prepare a gap phase change material, so that the solid-liquid state can be changed according to different temperatures, and heat absorption or heat release is realized, so that the heat insulation effect is realized.
The air entraining agent alkylphenol oxirane complex is added, dissolved in water and added into the concrete mixture, and a large amount of micro bubbles can be generated in the stirring process to prepare the foamed concrete so as to improve the heat insulation effect.
The prefabricated foamed concrete heat-insulation wall is simple in structure and convenient to disassemble, the foamed concrete has a good heat-insulation effect, energy can be stored in the form of phase-change latent heat, the energy can be converted between different time and space positions, heat can be insulated, the foamed concrete heat-insulation prefabricated plates and the concrete frame can be directly connected in a splicing mode, the site construction can be realized, the structure combination is convenient, and the manufacturing is simple. When the ambient temperature is higher than the melting point of the phase-change material, the phase-change material absorbs solar radiation heat or stores heat in a wall body in the process of converting the solid state into the liquid state, and stores the heat energy; when the ambient temperature is lower than the melting point of the phase-change material, the phase-change material is changed from liquid state to solid state, and the heat storage is released, so that the temperature in the room can be adjusted, the outdoor wall body can be effectively protected from falling off in cold regions, the energy can be effectively stored, and the temperature difference in the room is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined by the appended claims.
Claims (10)
1. The foamed concrete is characterized by comprising the following components in parts by weight: 210-270 parts of ordinary portland cement, 80-100 parts of fly ash, 30-55 parts of ash calcium powder, 3-5 parts of silica fume, 180 parts of bentonite composite cementing material, 3-6 parts of redispersible rubber powder, 0.5-1 part of hydroxypropyl methyl cellulose, 0.5-1 part of reinforcing fiber, 60-100 parts of paraffin, 180 parts of water, 30-40 parts of expanded perlite, 50-70 parts of diatomite, 3-5 parts of light aggregate and 0.5-1 part of air entraining agent.
2. The foamed concrete of claim 1, wherein the redispersible rubber powder is protein or starch.
3. The foamed concrete according to claim 1, wherein the lightweight aggregate is composed of vitrified beads, waste polystyrene foam particles and hollow glass beads; or consists of vitrified micro bubbles, phenolic foam particles and hollow glass particles.
4. The foamed concrete according to claim 1, wherein the reinforcing fiber is a carbon fiber or an aramid fiber.
5. The foamed concrete of claim 1, wherein the air entraining agent is an alkylphenol-ethylene oxide complex.
6. The preparation method of the foamed concrete is characterized by comprising the following steps:
step 1: weighing the following components in proportion: 210-270 parts of ordinary portland cement, 80-100 parts of fly ash, 30-55 parts of ash calcium powder, 3-5 parts of silica fume, 180 parts of bentonite composite cementing material, 3-6 parts of redispersible rubber powder, 0.5-1 part of hydroxypropyl methyl cellulose, 0.5-1 part of reinforcing fiber, 60-100 parts of paraffin, 180 parts of water, 30-40 parts of expanded perlite, 50-70 parts of diatomite, 3-5 parts of light aggregate and 0.5-1 part of air entraining agent;
step 2: placing ordinary portland cement, fly ash, sierozem powder, silica fume and water in a cement mortar stirrer to be uniformly stirred, and then pouring the bentonite composite cementing material, the redispersible rubber powder, the hydroxypropyl methylcellulose and the reinforced fiber into the cement mortar stirrer to be uniformly stirred to obtain mixture mortar;
and step 3: putting the expanded perlite and the diatomite into paraffin under liquid state, adsorbing the paraffin by the expanded perlite and the diatomite to prepare a shaped phase-change material, and then doping the shaped phase-change material into the mixture mortar to be uniformly stirred;
and 4, step 4: adding the lightweight aggregate into the mixture mortar and continuously stirring;
and 5: and adding the air entraining agent into the mixture mortar, and stirring to prepare the foamed concrete.
7. A prefabricated foam concrete heat-insulation wall is characterized by comprising a plurality of foam concrete heat-insulation prefabricated plates and two concrete frames, wherein the two ends of the heat-insulation wall are respectively inserted into the corresponding concrete frames after the plurality of foam concrete heat-insulation prefabricated plates are spliced into a heat-insulation wall main body; the foamed concrete heat-insulating precast slab comprises: the prefabricated plate comprises a prefabricated plate main body and connecting bodies welded on two sides of the prefabricated plate main body;
the prefabricated slab main body is composed of a nine-palace-lattice-shaped frame formed by welding a plurality of snowflake boards and foamed concrete filled in the nine-palace lattice, the connecting body is formed by welding the snowflake boards, the interior of the connecting body is filled with the foamed concrete, and the concrete frame is provided with a notch matched with the shape of the connecting body; the prefabricated slab comprises a prefabricated slab main body and is characterized in that a bulge is arranged at the top end of the prefabricated slab main body, and a groove matched with the bulge in shape is arranged at the corresponding position of the bottom end of the prefabricated slab main body, so that the adjacent foamed concrete heat-insulation prefabricated slabs are spliced.
8. The prefabricated foamed concrete thermal insulation wall according to claim 7, wherein the foamed concrete comprises the following components in parts by weight: 210-270 parts of ordinary portland cement, 80-100 parts of fly ash, 30-55 parts of ash calcium powder, 3-5 parts of silica fume, 180 parts of bentonite composite cementing material, 3-6 parts of redispersible rubber powder, 0.5-1 part of hydroxypropyl methyl cellulose, 0.5-1 part of reinforcing fiber, 60-100 parts of paraffin, 180 parts of water, 30-40 parts of expanded perlite, 50-70 parts of diatomite, 3-5 parts of light aggregate and 0.5-1 part of air entraining agent.
9. The prefabricated foamed concrete thermal insulation wall as claimed in claim 7, wherein both surfaces of the prefabricated panel main body are coated with cement mortar layers.
10. The precast foamed concrete thermal insulation wall according to claim 7, wherein the precast slab main body and the connectors welded to both sides of the precast slab main body constitute an I-shaped structure.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847188A (en) * | 2006-04-10 | 2006-10-18 | 赵云龙 | Heat insulating glue powder material for wall and its prepn and usage |
| CN101759416A (en) * | 2009-12-25 | 2010-06-30 | 唐山市思远涂料有限公司 | Thermal insulation building mortar and preparation process thereof |
| CN102249602A (en) * | 2010-05-17 | 2011-11-23 | 中国建筑材料科学研究总院 | Phase change temperature adjustment mortar |
| US8070876B1 (en) * | 2011-05-05 | 2011-12-06 | Haihong Jiang | Fireproof insulating cementitious foam comprising phase change materials |
| CN102924009A (en) * | 2012-10-09 | 2013-02-13 | 天津哈澳德建筑材料研究院有限公司 | Inorganic composite thermal mortar |
| CN108276023A (en) * | 2018-01-23 | 2018-07-13 | 合肥梵腾环保科技有限公司 | A kind of energy-saving environment-friendly light partition plate and preparation method thereof |
| CN209397825U (en) * | 2018-08-13 | 2019-09-17 | 建研科技股份有限公司 | Prefabricated foamed ceramic Side fascia |
| CN211078945U (en) * | 2019-12-02 | 2020-07-24 | 沈阳众磊道桥有限公司 | Prefabricated foamed concrete heat preservation wall |
-
2019
- 2019-12-02 CN CN201911214068.9A patent/CN110803936A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847188A (en) * | 2006-04-10 | 2006-10-18 | 赵云龙 | Heat insulating glue powder material for wall and its prepn and usage |
| CN101759416A (en) * | 2009-12-25 | 2010-06-30 | 唐山市思远涂料有限公司 | Thermal insulation building mortar and preparation process thereof |
| CN102249602A (en) * | 2010-05-17 | 2011-11-23 | 中国建筑材料科学研究总院 | Phase change temperature adjustment mortar |
| US8070876B1 (en) * | 2011-05-05 | 2011-12-06 | Haihong Jiang | Fireproof insulating cementitious foam comprising phase change materials |
| CN102924009A (en) * | 2012-10-09 | 2013-02-13 | 天津哈澳德建筑材料研究院有限公司 | Inorganic composite thermal mortar |
| CN108276023A (en) * | 2018-01-23 | 2018-07-13 | 合肥梵腾环保科技有限公司 | A kind of energy-saving environment-friendly light partition plate and preparation method thereof |
| CN209397825U (en) * | 2018-08-13 | 2019-09-17 | 建研科技股份有限公司 | Prefabricated foamed ceramic Side fascia |
| CN211078945U (en) * | 2019-12-02 | 2020-07-24 | 沈阳众磊道桥有限公司 | Prefabricated foamed concrete heat preservation wall |
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Application publication date: 20200218 |