CN110130530B - Building interlocking building block and thermal insulation mortar used by same - Google Patents
Building interlocking building block and thermal insulation mortar used by same Download PDFInfo
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- CN110130530B CN110130530B CN201910424676.6A CN201910424676A CN110130530B CN 110130530 B CN110130530 B CN 110130530B CN 201910424676 A CN201910424676 A CN 201910424676A CN 110130530 B CN110130530 B CN 110130530B
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—Lightweight materials
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1029—Macromolecular compounds
- C04B20/1048—Polysaccharides, e.g. cellulose, or derivatives thereof
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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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2/04—Walls having neither cavities between, nor in, the solid elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2/04—Walls having neither cavities between, nor in, the solid elements
- E04B2/06—Walls having neither cavities between, nor in, the solid elements using elements having specially-designed means for stabilising the position
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2/04—Walls having neither cavities between, nor in, the solid elements
- E04B2/06—Walls having neither cavities between, nor in, the solid elements using elements having specially-designed means for stabilising the position
- E04B2/08—Walls having neither cavities between, nor in, the solid elements using elements having specially-designed means for stabilising the position by interlocking of projections or inserts with indentations, e.g. of tongues, grooves, dovetails
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
- E04C1/40—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2002/0256—Special features of building elements
- E04B2002/0289—Building elements with holes filled with insulating material
Abstract
The invention belongs to the technical field of building materials, and particularly relates to a building interlocking block and thermal insulation mortar used by the building interlocking block. The left side of the interlocking building block is provided with a protruding T-shaped lug, and the right side of the interlocking building block is provided with a T-shaped groove matched with the lug; the center of the interlocking building block is provided with a plurality of longitudinally-penetrating filling cavities which are arranged in parallel along the transverse direction, the filling cavities are used for filling thermal insulation mortar, and the bottom surface of the interlocking building block is provided with a plurality of anti-skid protrusions which are uniformly distributed; wherein, the components of the filled thermal insulation mortar comprise: cement, fly ash, gypsum, energy storage aggregate, glass fiber and cement expanding agent. The energy storage aggregate takes porous basalt as a carrier, is adsorbed with a phase change mixture, and has particles with a shell-core structure.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to a building interlocking block and thermal insulation mortar used by the building interlocking block.
Background
The building blocks are artificial blocks for building, are novel wall materials, are mostly right-angled hexahedrons in appearance, and also have various profile building blocks. The building blocks are mostly artificial blocks made of concrete, industrial waste or local materials, have larger overall dimension than bricks, have the advantages of simple equipment and high building speed, and meet the requirement of wall body reformation in the industrial development of buildings. The building blocks are divided into small building blocks, medium building blocks and large building blocks according to the size and the mass. The building blocks can be divided into solid blocks and hollow blocks according to the appearance shape. The hollow building block has three forms of a single-row square hole, a single-row round hole and a plurality of rows of flat holes, wherein the plurality of rows of flat holes are beneficial to heat preservation. The building blocks can be divided into main building blocks and various auxiliary building blocks according to the positions and functions of the building blocks in the building block group.
In order to further improve the heat preservation and insulation performance of the building blocks, foam concrete or organic foaming materials are filled in the cavities of the porous building blocks, and the heat preservation and insulation effects of the building blocks are improved by utilizing the low heat conduction performance of the filling materials. The Chinese utility model discloses a fill foam concrete sintering composite insulation building block and self preservation temperature wall body that builds thereof that publication number CN204876290U issued to and CN205742708U disclosed a fill fire-retardant insulation building block of resistance to compression of heat preservation core all is such a product. In the building block product, the performance of the filler not only affects the heat preservation and insulation performance of the building block, but also affects the weather resistance performance of the building block, and the aging life of the building block is directly affected by the difference of the bonding strength, the expansion coefficient, the aging resistance performance and the like between the filler and the building block.
Therefore, how to develop a novel building block with good heat insulation performance, excellent stability and weather resistance becomes an important research direction in the field of environment-friendly building materials.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to design a new technical scheme and provide a building interlocking block and heat-insulating mortar used by the building interlocking block.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a building interlocking block is characterized in that a protruding T-shaped lug is arranged on the left side of the interlocking block, and a T-shaped groove matched with the lug is arranged on the right side of the interlocking block; the central portion of each interlocking building block is provided with a plurality of longitudinally-penetrating filling cavities which are arranged in parallel in the transverse direction and used for filling heat-insulating mortar, and a plurality of anti-skid protrusions which are uniformly distributed are arranged on the bottom surface of each interlocking building block.
Preferably, the interlocking blocks are molded concrete blocks or sintered blocks.
Wherein, the heat preservation mortar is pre-filled after the chain building blocks are formed.
The thermal insulation mortar for filling the chain building blocks comprises the following raw material components in percentage by mass: 20-30 parts of cement, 40-50 parts of fly ash, 8-16 parts of gypsum, 10-20 parts of energy storage aggregate, 1-3 parts of glass fiber and 0.2-0.4 part of cement expanding agent.
Preferably, the heat-insulating mortar comprises the following raw material components in percentage by mass: 27 parts of cement, 45 parts of fly ash, 11 parts of gypsum, 16 parts of energy storage aggregate, 2 parts of glass fiber and 0.3 part of cement expanding agent.
The preparation method of the energy storage aggregate comprises the following steps:
(1) adding the multielement organic phase change mixture into a sealed reaction kettle, heating to 75-80 ℃ until the materials are liquefied, then adding nano alumina accounting for 6-8wt% of the multielement organic phase change mixture into a dispersion kettle, uniformly stirring until the materials are uniformly dispersed, then adding 0.3-0.8wt% of AlNSb quantum dots and 4.3-6.5wt% of alkylphenol ethoxylates, and dispersing at high speed to obtain a mixed solution;
(2) mixing the mixed solution with water, glycerol, algin oligosaccharide and polyvinyl alcohol according to the mass ratio of 7:3:0.2:2:1, heating the materials to 65-80 ℃, and performing high-speed dispersion treatment for 3-4min at the rotating speed of higher than 450r/min to obtain mixture emulsion;
(3) selecting porous basalt with the density of 0.3-1.4g/cm for carrying out thin film transformation, washing the porous basalt with water to remove ash, calcining at the temperature of 530-650 ℃ for 30-40min, and naturally cooling to room temperature; then putting the porous basalt into a vacuum kettle, preheating the vacuum kettle to 75-80 ℃, and injecting the mixture emulsion obtained in the previous step into the vacuum kettle, wherein the input amount is based on the fact that the porous basalt is completely immersed; then the vacuum kettle is pumped to a vacuum state, the vacuum state is maintained for 0.8 to 1.5 hours, and the adsorbed porous basalt is naturally cooled to room temperature after being screened;
(4) fully mixing chitosan, guar gum hydroxypropyl trimethyl ammonium chloride, sorbitol and 2.5% acetic acid solution according to the mass percentage of 2.5:0.3:1:100, magnetically stirring and uniformly dispersing, and then performing ultrasonic degassing treatment to obtain a film forming solution; and then putting the porous basalt in the previous step into the film forming solution to be completely immersed, soaking for 6-10min, sieving, flatly spreading on a drying plate, naturally drying for 24h, then drying for 5-6h at the temperature of 45-55 ℃, and circulating the soaking-drying process for 3-5 times to obtain the required energy storage aggregate.
Wherein, the multi-organic phase change mixture in the step (1) is obtained by compounding a plurality of hydrocarbon mixtures with 18-30 carbon atoms, and the phase change temperature is 30-50 ℃.
The grain diameter of the porous basalt in the step (3) is 2-4 mm.
In the step (4), chitosan is selected as a product with deacetylation degree of 85-95%.
Preferably, the cement is selected from alkaline cement; the expanding agent is a product which is selected from the expanding agent and contains more than 90 percent of iron powder and is added with sodium chloride, sodium thiosulfate, nekal, a water reducing agent, ammonium chloride and aluminum powder.
The invention has the following beneficial effects:
the interlocking building block provided by the invention is a concrete preformed wall material, and through interlocking mechanisms such as grooves and lugs on the building block, the using amount of adhesives such as cement mortar and the like in the building process of the building block can be reduced, and the structural strength of a building wall is improved. The interlocking building blocks also comprise large-capacity filling cavities, and the filling cavities are filled with prefabricated heat-insulating mortar, so that the heat-insulating performance of the building blocks is remarkably improved on the basis of not influencing the structural strength and the weather resistance of the building blocks.
The thermal insulation mortar in the embodiment is similar to the building block in material property, and the thermal insulation mortar also contains a binder-free bonding material, so that the thermal insulation mortar can be stably combined with the building block body, the expansion coefficients of the thermal insulation mortar and the building block body are close, the thermal insulation mortar is not easy to fall off in a cold and hot environment, and the structural stability and the chemical stability of the material are very excellent.
In addition, a special energy storage aggregate is added into the raw materials of the thermal insulation mortar, the aggregate is a new material produced by applying a new process, the aggregate takes porous basalt as a carrier, takes a plurality of organic normal temperature phase change materials as a matrix, and is coated with a high molecular film forming material, so that phase change energy storage particles with a shell-core structure are obtained, and compared with phase change material microcapsules produced by companies such as 'basf' and the like, the phase change energy storage particles have higher strength, wear resistance and pressure resistance, can be stably compatible with other inorganic materials in the thermal insulation mortar, and can better exert energy storage and heat collection performances in the building block.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the interlocking block of the present embodiment with the single block facing upwards;
FIG. 2 is a schematic structural view of the interlocking block monoblock of the present embodiment with the top surface facing upwards;
FIG. 3 is a schematic structural view of a multi-block combination of the interlocking blocks in the embodiment;
labeled as: 11. a bump; 12. a groove; 13. filling the cavity; 14. and (4) anti-skid protrusions.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or circuit connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
Example 1
As shown in fig. 1, 2 and 3, a building interlocking block is provided, wherein a protruding T-shaped projection 11 is arranged on the left side of the interlocking block, and a T-shaped groove 12 matched with the projection 11 is arranged on the right side of the interlocking block; the central portion of the interlocking building block is provided with a plurality of longitudinally-penetrating filling cavities 13, the filling cavities 13 are arranged in parallel along the transverse direction, the filling cavities 13 are used for filling heat-preservation mortar, and the bottom surface of the interlocking building block is provided with a plurality of anti-skid protrusions 14 which are uniformly distributed.
The interlocking blocks are molded concrete blocks.
Wherein, the heat preservation mortar is pre-filled after the chain building blocks are formed.
The thermal insulation mortar filled in the chain building blocks comprises the following raw material components in percentage by mass: 20 parts of cement, 40 parts of fly ash, 8 parts of gypsum, 10 parts of energy storage aggregate, 1 part of glass fiber and 0.2 part of cement expanding agent.
In this embodiment, the preparation method of the energy storage aggregate includes the following steps:
(1) adding the multielement organic phase change mixture into a sealed reaction kettle, heating to 75 ℃ until the materials are liquefied, then adding nano alumina accounting for 6wt% of the multielement organic phase change mixture into a dispersion kettle, uniformly stirring until the materials are uniformly dispersed, then adding 0.3wt% of AlNSb quantum dots and 4.3wt% of alkylphenol ethoxylates, and dispersing at a high speed to obtain a mixed solution;
(2) mixing the mixed solution with water, glycerol, algin oligosaccharide and polyvinyl alcohol according to the mass ratio of 7:3:0.2:2:1, heating the materials to 65 ℃, and performing high-speed dispersion treatment for 3min at the rotating speed of more than 450r/min to obtain mixture emulsion;
(3) selecting porous basalt with the density of 0.3-1.4g/cm for carrying out thin film hybrid transformation, washing the porous basalt with water to remove ash, calcining at 530 ℃ for 30min, and naturally cooling to room temperature; then putting the porous basalt into a vacuum kettle, preheating the porous basalt in the vacuum kettle to 75 ℃, and injecting the mixture emulsion obtained in the previous step into the vacuum kettle, wherein the input amount is based on the fact that the porous basalt is completely immersed; then the vacuum kettle is pumped to a vacuum state, the vacuum state is maintained for 0.8h, and the adsorbed porous basalt is naturally cooled to room temperature after being screened;
(4) fully mixing chitosan, guar gum hydroxypropyl trimethyl ammonium chloride, sorbitol and 2.5% acetic acid solution according to the mass percentage of 2.5:0.3:1:100, magnetically stirring and uniformly dispersing, and then performing ultrasonic degassing treatment to obtain a film forming solution; and then putting the porous basalt in the previous step into a film forming solution to be completely immersed, soaking for 6min, sieving, flatly laying on a drying plate, naturally drying for 24h, drying for 5h at the temperature of 45 ℃, and circulating the soaking-drying process for 3 times to obtain the required energy storage aggregate.
Wherein, the multi-organic phase change mixture in the step (1) is obtained by compounding a plurality of hydrocarbon mixtures with 18-30 carbon atoms, and the phase change temperature is 30-50 ℃.
The grain diameter of the porous basalt in the step (3) is 2-4 mm.
And (4) selecting a product with deacetylation degree of 85% from chitosan in the step (4).
Selecting alkaline cement as the cement; the expanding agent is a product which is selected from the expanding agent and contains more than 90 percent of iron powder and is added with sodium chloride, sodium thiosulfate, nekal, a water reducing agent, ammonium chloride and aluminum powder.
Example 2
This example differs from example 1 in that:
the thermal insulation mortar filled in the interlocking building blocks comprises the following raw material components in percentage by mass: 30 parts of cement, 50 parts of fly ash, 16 parts of gypsum, 20 parts of energy storage aggregate, 3 parts of glass fiber and 0.4 part of cement expanding agent.
In this embodiment, the preparation method of the energy storage aggregate includes the following steps:
(1) adding the multielement organic phase change mixture into a sealed reaction kettle, heating to 80 ℃ until the materials are liquefied, then adding nano alumina accounting for 8wt% of the multielement organic phase change mixture into a dispersion kettle, uniformly stirring until the materials are uniformly dispersed, then adding 0.8wt% of AlNSb quantum dots and 6.5wt% of alkylphenol ethoxylates, and dispersing at a high speed to obtain a mixed solution;
(2) mixing the mixed solution with water, glycerol, algin oligosaccharide and polyvinyl alcohol according to the mass ratio of 7:3:0.2:2:1, heating the materials to 80 ℃, and performing high-speed dispersion treatment for 4min at the rotating speed of more than 450r/min to obtain mixture emulsion;
(3) selecting porous basalt with the density of 0.3-1.4g/cm for carrying out thin film hybrid transformation, washing the porous basalt with water to remove ash, calcining at the temperature of 650 ℃ for 40min, and naturally cooling to room temperature; then putting the porous basalt into a vacuum kettle, preheating the vacuum kettle to 80 ℃, and injecting the mixture emulsion obtained in the previous step into the vacuum kettle, wherein the input amount is based on the fact that the porous basalt is completely immersed; then the vacuum kettle is pumped to a vacuum state, the vacuum state is maintained for 1.5h, and the adsorbed porous basalt is naturally cooled to room temperature after being screened;
(4) fully mixing chitosan, guar gum hydroxypropyl trimethyl ammonium chloride, sorbitol and 2.5% acetic acid solution according to the mass percentage of 2.5:0.3:1:100, magnetically stirring and uniformly dispersing, and then performing ultrasonic degassing treatment to obtain a film forming solution; and then putting the porous basalt in the previous step into a film forming solution to be completely immersed, soaking for 10min, sieving, flatly laying on a drying plate, naturally drying for 24h, drying for 6h at the temperature of 55 ℃, and circulating the soaking-drying process for 5 times to obtain the required energy storage aggregate.
Wherein, the multi-organic phase change mixture in the step (1) is obtained by compounding a plurality of hydrocarbon mixtures with 18-30 carbon atoms, and the phase change temperature is 30-50 ℃.
The grain diameter of the porous basalt in the step (3) is 2-4 mm.
And (4) selecting a product with the deacetylation degree of 95% from the chitosan in the step (4).
Preferably, the cement is selected from alkaline cement; the expanding agent is a product which is selected from the expanding agent and contains more than 90 percent of iron powder and is added with sodium chloride, sodium thiosulfate, nekal, a water reducing agent, ammonium chloride and aluminum powder.
Example 3
This example differs from example 1 in that:
the thermal insulation mortar filled in the interlocking building blocks comprises the following raw material components in percentage by mass: 27 parts of cement, 45 parts of fly ash, 11 parts of gypsum, 16 parts of energy storage aggregate, 2 parts of glass fiber and 0.3 part of cement expanding agent.
In this embodiment, the preparation method of the energy storage aggregate includes the following steps:
(1) adding the multielement organic phase change mixture into a sealed reaction kettle, heating to 76 ℃ until the materials are liquefied, then adding nano alumina accounting for 7wt% of the multielement organic phase change mixture into a dispersion kettle, uniformly stirring until the materials are uniformly dispersed, then adding 0.5wt% of AlNSb quantum dots and 5.3wt% of alkylphenol ethoxylates, and dispersing at a high speed to obtain a mixed solution;
(2) mixing the mixed solution with water, glycerol, algin oligosaccharide and polyvinyl alcohol according to the mass ratio of 7:3:0.2:2:1, heating the materials to 74 ℃, and performing high-speed dispersion treatment for 3min at the rotating speed of more than 450r/min to obtain mixture emulsion;
(3) selecting porous basalt with the density of 0.3-1.4g/cm for carrying out thin film hybrid transformation, washing the porous basalt with water to remove ash, calcining at the temperature of 610 ℃ for 35min, and naturally cooling to room temperature; then putting the porous basalt into a vacuum kettle, preheating the vacuum kettle to 78 ℃, and injecting the mixture emulsion obtained in the previous step into the vacuum kettle, wherein the input amount is based on the fact that the porous basalt is completely immersed; then the vacuum kettle is pumped to a vacuum state, the vacuum state is maintained for 1.2h, and the adsorbed porous basalt is naturally cooled to room temperature after being screened;
(4) fully mixing chitosan, guar gum hydroxypropyl trimethyl ammonium chloride, sorbitol and 2.5% acetic acid solution according to the mass percentage of 2.5:0.3:1:100, magnetically stirring and uniformly dispersing, and then performing ultrasonic degassing treatment to obtain a film forming solution; and then putting the porous basalt in the previous step into a film forming solution to be completely immersed, soaking for 8min, sieving, flatly laying on a drying plate, naturally drying for 24h, drying for 5.7h at the temperature of 50 ℃, and circulating the soaking-drying process for 4 times to obtain the required energy storage aggregate.
Wherein, the multi-organic phase change mixture in the step (1) is obtained by compounding a plurality of hydrocarbon mixtures with 18-30 carbon atoms, and the phase change temperature is 30-50 ℃.
The grain diameter of the porous basalt in the step (3) is 2-4 mm.
And (4) selecting a product with deacetylation degree of 90% from the chitosan in the step (4).
Preferably, the cement is selected from alkaline cement; the expanding agent is a product which is selected from the expanding agent and contains more than 90 percent of iron powder and is added with sodium chloride, sodium thiosulfate, nekal, a water reducing agent, ammonium chloride and aluminum powder.
Performance testing
1. The energy storage and heat collection performance of the thermal insulation mortar in the embodiment is tested, and the test method comprises the following steps: curing and molding the thermal insulation mortar in the embodiment, then heating to 45 ℃, naturally cooling at the room temperature of 17 +/-0.5 ℃, and testing the change of the molded body temperature within 80min by taking 10min as a period; in the test process, compared with example 1, the thermal insulation mortar in which only the heat storage aggregate was replaced with the porous basalt was set as a control group, and the following test data was obtained.
Table 1: heat collection performance test result of heat preservation mortar energy storage in the embodiment and the comparison group
| Time of day | Control group | Example 1 | Example 2 | Example 3 |
| 0 | 45.0 | 45.0 | 45.0 | 45.0 |
| 10 | 37.2 | 41.2 | 41.5 | 41.4 |
| 20 | 31.5 | 35.7 | 35.6 | 35.4 |
| 30 | 24.3 | 31.2 | 31.4 | 31.0 |
| 40 | 20.1 | 28.4 | 28.7 | 28.1 |
| 50 | 19.2 | 26.3 | 26.5 | 25.9 |
| 60 | 18.5 | 24.5 | 24.7 | 24.3 |
| 70 | 18.4 | 23.8 | 23.5 | 23.1 |
| 80 | 18.2 | 23.5 | 23.4 | 22.7 |
The analysis of the above experimental results shows that, in the initial stage of the test, the temperature of the formed body of the control group is rapidly reduced, the cooling rate is significantly faster than that of the product of the embodiment, in the later stage of the test, after the temperature of the formed body of the control group approaches the ambient temperature, the temperature of the formed body tends to be stable, the cooling rate is significantly reduced, the variation of the cooling rate of the formed body formed by the thermal insulation mortar of the embodiment before and after the test is small, and the temperature in the later stage of the test is also. The experimental results can be used to conclude that the energy storage aggregate is used in the thermal insulation mortar in the embodiment, so that the energy storage and heat storage effect of the thermal insulation mortar is obviously enhanced, partial energy can be absorbed at a high temperature state and gradually released at a low temperature state, and the effects of energy storage, heat insulation and temperature regulation are achieved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A building interlocking block is characterized in that: the left side of the interlocking building block is provided with a protruding T-shaped lug, and the right side of the interlocking building block is provided with a T-shaped groove matched with the lug; the center of the interlocking building block is provided with a plurality of longitudinally-penetrating filling cavities which are arranged in parallel along the transverse direction, the filling cavities are used for filling thermal insulation mortar, and the bottom surface of the interlocking building block is provided with a plurality of anti-skid protrusions which are uniformly distributed;
the thermal insulation mortar comprises the following raw materials in percentage by mass: 20-30 parts of cement, 40-50 parts of fly ash, 8-16 parts of gypsum, 10-20 parts of energy storage aggregate, 1-3 parts of glass fiber and 0.2-0.4 part of cement expanding agent;
the preparation method of the energy storage aggregate comprises the following steps:
(1) adding the multielement organic phase change mixture into a sealed reaction kettle, heating to 75-80 ℃ until the materials are liquefied, then adding nano alumina accounting for 6-8wt% of the multielement organic phase change mixture into a dispersion kettle, uniformly stirring until the materials are uniformly dispersed, then adding 0.3-0.8wt% of AlNSb quantum dots and 4.3-6.5wt% of alkylphenol ethoxylates, and dispersing at high speed to obtain a mixed solution;
(2) mixing the mixed solution with water, glycerol, algin oligosaccharide and polyvinyl alcohol according to the mass ratio of 7:3:0.2:2:1, heating the materials to 65-80 ℃, and performing high-speed dispersion treatment for 3-4min at the rotating speed of higher than 450r/min to obtain mixture emulsion;
(3) selecting porous basalt with the density of 0.3-1.4g/cm for carrying out thin film transformation, washing the porous basalt with water to remove ash, calcining at the temperature of 530-650 ℃ for 30-40min, and naturally cooling to room temperature; then putting the porous basalt into a vacuum kettle, preheating the vacuum kettle to 75-80 ℃, and injecting the mixture emulsion obtained in the previous step into the vacuum kettle, wherein the input amount is based on the fact that the porous basalt is completely immersed; then the vacuum kettle is pumped to a vacuum state, the vacuum state is maintained for 0.8 to 1.5 hours, and the adsorbed porous basalt is naturally cooled to room temperature after being screened;
(4) fully mixing chitosan, guar gum hydroxypropyl trimethyl ammonium chloride, sorbitol and 2.5% acetic acid solution according to the mass percentage of 2.5:0.3:1:100, magnetically stirring and uniformly dispersing, and then performing ultrasonic degassing treatment to obtain a film forming solution; and then putting the porous basalt in the previous step into the film forming solution to be completely immersed, soaking for 6-10min, sieving, flatly spreading on a drying plate, naturally drying for 24h, then drying for 5-6h at the temperature of 45-55 ℃, and circulating the soaking-drying process for 3-5 times to obtain the required energy storage aggregate.
2. A building interlocking block according to claim 1, wherein: the interlocking blocks are molded concrete blocks or sintered blocks.
3. A building interlocking block according to claim 1, wherein: the heat-insulating mortar is pre-filled after the chain building blocks are formed.
4. A building interlocking block according to claim 1, wherein: the heat-insulating mortar comprises the following raw material components in percentage by mass: 27 parts of cement, 45 parts of fly ash, 11 parts of gypsum, 16 parts of energy storage aggregate, 2 parts of glass fiber and 0.3 part of cement expanding agent.
5. A building interlocking block according to claim 1, wherein: the multi-element organic phase change mixture in the step (1) is obtained by compounding a plurality of hydrocarbon mixtures with 18-30 carbon atoms, and the phase change temperature is 30-50 ℃.
6. A building interlocking block according to claim 1, wherein: the grain size of the porous basalt in the step (3) is 2-4 mm.
7. A building interlocking block according to claim 1, wherein: and (4) selecting a product with deacetylation degree of 85-95% from chitosan in the step (4).
8. A building interlocking block according to claim 1, wherein: the cement is selected from alkaline cement; the expanding agent is a product which is selected from the expanding agent and contains more than 90 percent of iron powder and is added with sodium chloride, sodium thiosulfate, nekal, a water reducing agent, ammonium chloride and aluminum powder.
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| CN111424876A (en) * | 2020-03-26 | 2020-07-17 | 上海市房屋建筑设计院有限公司 | Assembled wall building block and assembled construction method of wall building block |
| CN111441527A (en) * | 2020-05-11 | 2020-07-24 | 中青建安建设集团有限公司 | Combined type environment-friendly energy-saving interlocking building block for building |
| CN113006364A (en) * | 2021-02-05 | 2021-06-22 | 中铁十九局集团电务工程有限公司 | Assembled building block and wall body |
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