CN114105596A - Internal storage and external protection type wall composite heat insulation material, preparation and construction method - Google Patents

Internal storage and external protection type wall composite heat insulation material, preparation and construction method Download PDF

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CN114105596A
CN114105596A CN202111668883.XA CN202111668883A CN114105596A CN 114105596 A CN114105596 A CN 114105596A CN 202111668883 A CN202111668883 A CN 202111668883A CN 114105596 A CN114105596 A CN 114105596A
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gypsum
weight
heat
internal storage
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CN114105596B (en
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杨国海
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Jilin Boyuan Hongsheng Technology Co ltd
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Jilin Boyuan Hongsheng Technology Co ltd
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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
    • C04B28/14—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 calcium sulfate 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
    • C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B16/04—Macromolecular compounds
    • C04B16/08—Macromolecular compounds porous, e.g. expanded polystyrene beads or microballoons
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
    • 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
    • C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • 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
    • C04B2111/00017—Aspects relating to the protection of the environment
    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • C04B2111/285—Intumescent materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/40—Porous or lightweight materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/24—Structural elements or technologies for improving thermal insulation
    • Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Acoustics & Sound (AREA)
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Abstract

The invention provides an internal storage and external protection type wall composite heat insulation material, a preparation method and a construction method, wherein a gypsum-based system is adopted as an external wall inner side material of an internal storage and heat insulation system, and a main material is power plant waste desulfurized gypsum; the outer side of the outer wall of the external heat preservation system adopts a polyphenyl particle slurry system, and the main material is polyphenyl particles which are crushed and selected by polyphenyl plates (containing waste and old recycled polyphenyl plates). The combination of internal storage and external protection effectively prevents heat radiation, heat conduction and heat convection, and has high-efficiency heat preservation effect. In the production and construction processes, no residue and three wastes are discharged, the product can be formed along with the materials in the construction process, has air permeability, and the house achieves 'warm in winter and cool in summer' through heat preservation and heat insulation, is comfortable and pleasant, and has double performances of sound insulation and sound absorption.

Description

Internal storage and external protection type wall composite heat insulation material, preparation and construction method
Technical Field
The invention belongs to the technical field of heat-insulating building materials, and particularly relates to an internal-storage external-protection type wall composite heat-insulating material.
Background
In China, the research on the thermal insulation technology of the external wall of a building starts in 80-90 years of the 20 th century, and the first scientific research project related to external thermal insulation of the external wall is the seven-five key scientific and technological development project of the Ministry of construction, namely the research on the application technology of the light high-efficiency thermal insulation material composite brick wall (1986), so that systematic and comprehensive research work on the thermal insulation technology of the external wall is started. Later, the external thermal insulation of the external wall of the building is continuously developed along with the continuous improvement of the energy-saving requirement of the building, various novel wall thermal insulation technologies are continuously emerged, and the application of the external thermal insulation technology of the external wall in engineering projects is also continuously expanded. The external thermal insulation system for the external wall in China is developed rapidly and shows diversified development trends from an external thermal insulation system for the external wall which is composed of organic thermal insulation materials such as molded polystyrene boards (EPS), rubber powder polystyrene particles, extruded polystyrene boards (XPS) and Polyurethane (PU), to an external thermal insulation system for the external wall which is composed of inorganic thermal insulation materials such as rock wool, inorganic light aggregates and foam glass, and to novel external thermal insulation materials and products such as phenolic foam boards, integrated boards and vacuum insulation boards.
Although the existing heat-insulating material has the characteristic of non-combustibility, the heat-insulating property and the waterproof property of the existing heat-insulating material are poor, the specific gravity of the existing heat-insulating material is large, and the existing heat-insulating material has high heat conductivity, when the existing heat-insulating material is used, aggregate and powder included in the composite material are randomly mixed by workers according to experience on a construction site, so that the using effect and the heat-insulating property of the heat-insulating material are greatly influenced, and in addition, the plate-shaped heat-insulating material is fixed on a wall body in a bonding and anchoring mode, and the falling-off condition occurs sometimes.
Disclosure of Invention
The invention aims to solve the problems mentioned in the background art, provides an internal storage and external protection type wall composite thermal insulation material, belongs to an organic and inorganic modified thermal insulation material, integrates the low heat conduction and high monomer thermal resistance of the organic thermal insulation material, is maximally compatible with the fireproof performance of the inorganic thermal insulation material, has high weather resistance, belongs to a full-bonding integrated type, avoids the generation of an air smoke window channel between a thermal insulation layer and a base wall, and achieves the fireproof performance through detection (A)2Grade), weather resistant rootAccording to the principle of similarity and compatibility of the used materials, the technical effect of having the same service life with the building should be achieved theoretically.
The technical scheme provided by the invention is as follows:
an internal storage and external protection type wall composite heat insulation material comprises a heat insulation material used for the exterior of an exterior wall, and comprises powder and aggregate, wherein the powder comprises, by weight, 65-75 parts of Portland cement, 25-35 parts of gypsum, 2-4 parts of fumed silica, 6.5-8.5 parts of waterproof rubber powder, 2-2.5 parts of cellulose ether, 1.5-3 parts of PP fiber, 1-3 parts of modified acrylic rubber powder, 0.5-1 part of a thickening and lubricating agent, 1-3 parts of wood fiber and 1-2 parts of enhanced foaming powder;
the aggregate comprises, by weight, 60 parts of polystyrene particles, 10 parts of fumed silica, 20 parts of portland cement, 5 parts of gypsum and 5 parts of fly ash.
Preferably, the powder material comprises, by weight, 70 parts of portland cement, 30 parts of gypsum, 3 parts of fumed silica, 7.5 parts of waterproof rubber powder, 2.2 parts of cellulose ether, 2 parts of PP fiber, 1 part of modified acrylic rubber powder, 0.5 part of thickening and lubricating agent, 2 parts of wood fiber and 1.5 parts of reinforced foam powder.
Preferably, the polystyrene particles in the aggregate have a particle size of 0.5-2.5 mm and a density of 10-15KG/m3。
Preferably, the gypsum in the powder is calcined desulfurized gypsum, and the performance indexes of the calcined gypsum are that the calcination temperature is 650-800 ℃, the fineness is more than or equal to 100 meshes, the standard viscosity is less than or equal to 40%, the initial setting time is more than 10min, the final setting time is less than or equal to 20min, the absolute compressive strength MPa is more than or equal to 40, and the absolute flexural strength MPa is more than or equal to 40.
Preferably, the portland cement is 42.5R type.
Preferably, the preparation of the composite heat-insulating material for the wall with the internal storage and the external protection comprises the following steps:
s1, subdividing, crushing and screening the polystyrene material (waste and old recycled) to form uniform fine particles, and crushing the uniform fine particles to obtain polystyrene particles with the particle size of 0.5mm-2.5 mm;
s2, selecting 60 parts of polystyrene material in S1, adding the polystyrene material into a sealed tank, and adding 10 parts of fumed silicaAdding 20 parts of 42.5R portland cement, 5 parts of gypsum and 5 parts of fly ash for stirring in a roller, stirring at low speed to form a mixed material, injecting steam for stirring at high speed, forming a reinforced coating protective layer on polystyrene particles under the action of steam high-temperature hydration physical reaction in the motion process, and drying to ensure that the coated polystyrene particles have light-weight, fireproof and flame-retardant properties, wherein the density of the processed polystyrene particles is 10-15KG/m3；
And S3, selecting a belt type bidirectional convection mode for high-speed stirring for 5 minutes, selecting 30 parts of aggregate, adding the aggregate into the tank, stirring the aggregate and the powder at a low speed for 5 minutes, and preparing a finished product for automatic packaging.
Preferably, the construction method of the composite protective material for the wall with the internal storage and the external protection comprises the following steps:
s4, mixing the packaged finished materials with a stirring and spraying integrated machine on a construction site, carrying out wet stirring on the mixed materials and water according to the proportion of 0.8:1 for 3-5 minutes to form thick slurry, and spraying on an external construction operation surface of the external wall in a spraying manner;
s5, adopting a gypsum-based heat-preservation plastering system for heat preservation of the inner side of the outer wall, mixing desulfurized gypsum serving as a main cementing material with glass beads, an additive and the like to prepare the light plastering gypsum mortar, and proportioning the lightweight bottom plastering gypsum according to the requirements on the folding resistance and the compressive strength of the lightweight bottom plastering gypsum in GB/28677 plus 2012 plastering gypsum.
Preferably, the operation parameters of the stirring and spraying integrated machine are as follows: power 11KW, air pump motor 4KW, pulp output 4-6 cubic meters per hour, plane conveying 60 meters and vertical conveying 30 meters.
The beneficial effects of the invention are embodied in the following aspects:
1. this heat preservation system holds the combination of outer dual heat preservation system of guarantor including interior, effectively prevents heat radiation, heat-conduction, thermal convection, compares with current insulation material and has better heat preservation effect.
2. According to the preparation and construction method of the powder and the aggregate, the heat-insulating material is stirred by automatic stirring equipment in a factory through scientific proportioning, and the technical problem that the construction quality is influenced by random mixing of workers in the prior art is solved.
3. The invention utilizes the crushed polystyrene particles of the waste polystyrene board to solve the technical problems of layering and poor mixing property caused by easy segregation of the mixed polystyrene particles in the prior art.
4. The raw materials of the invention are all modified materials, and the environment-friendly material with nontoxic, tasteless and harmless polyethylene waste as the aggregate is selected, so that no residue and three wastes are discharged in the production and construction processes.
Description of the drawings:
1. FIG. 1 is a flow chart of the preparation and construction method of the present invention.
Detailed Description
The present invention is further described in conjunction with the following embodiments, and it is understood that some well-known structures and descriptions thereof may be omitted for those skilled in the art, and all other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention are within the protection scope of the present invention.
Example 1
An internal storage and external protection type wall composite heat insulation material comprises a heat insulation material used for the exterior of an exterior wall, and comprises powder and aggregate, wherein the powder comprises 65 parts by weight of Portland cement, 25 parts by weight of gypsum, 2 parts by weight of fumed silica, 6.5 parts by weight of waterproof rubber powder, 2 parts by weight of cellulose ether, 1.5 parts by weight of PP fiber, 1 part by weight of modified acrylic rubber powder, 0.5 part by weight of a thickening and lubricating agent, 1 part by weight of wood fiber and 1 part by weight of enhanced foaming powder;
the aggregate comprises, by weight, 60 parts of polystyrene particles, 10 parts of fumed silica, 20 parts of portland cement, 5 parts of gypsum and 5 parts of fly ash;
the invention adopts waste recycled polystyrene material, crushed polystyrene particles are wrapped by inorganic material, a small volume of the silo is thickened with a protective layer, the heat shrinkage of the polystyrene material can be effectively reduced, the gasification combustion is prevented, and the thermal radiation, the thermal conduction and the thermal convection can be effectively prevented. The organic and inorganic powder is compounded with polyphenyl granules to form a sub-elastomer, and fibers with different lengths and different elastic moduli are prepared in the sand slurry rubber powder and are used for the conduction direction of the dispersing force;
the type of the Portland cement is 42.5R, the gypsum in the powder is calcined desulfurized gypsum, and the performance indexes of the calcined gypsum are that the calcination temperature is 650-800 ℃, the fineness is more than or equal to 100 meshes, the standard viscosity is less than or equal to 40%, the initial setting time is more than 10min, the final setting time is less than or equal to 20min, the absolute dry compressive strength MPa is more than or equal to 40, and the absolute dry flexural strength MPa is more than or equal to 40.
The preparation method comprises the following steps:
s1, subdividing, crushing and screening the polystyrene material (waste and old recycled) to form uniform fine particles, and crushing the uniform fine particles to obtain polystyrene particles with the particle size of 0.5mm-2.5 mm;
s2, selecting 60 parts of polystyrene material in S1, adding 60 parts of polystyrene material into a sealed tank, adding 10 parts of fumed silica, adding 20 parts of 42.5R portland cement, 5 parts of gypsum and 5 parts of fly ash, stirring in a roller, stirring at low speed to form a mixed material, injecting steam, stirring at high speed, forming a reinforced coating protective layer on polystyrene particles under the action of steam high-temperature hydration physical reaction in the motion process, and drying to ensure that the coated polystyrene particles have light weight, fire resistance and flame resistance, wherein the density of the processed polystyrene particles is 10-15KG/m3；
S3, selecting a belt type bidirectional convection mode to stir the powder for 5 minutes at a high speed, selecting 30 parts of aggregate to be added into the tank body to be stirred with the powder for 5 minutes at a low speed, and preparing the powder into a finished product to be automatically packaged.
Example 2
The composite heat-insulating material comprises, by weight, 70 parts of Portland cement, 30 parts of gypsum, 3 parts of fumed silica, 7.5 parts of waterproof rubber powder, 2.2 parts of cellulose ether, 2 parts of PP fiber, 1 part of modified acrylic rubber powder, 0.5 part of thickening agent, 2 parts of wood fiber and 1.5 parts of reinforced foaming powder;
the aggregate comprises, by weight, 60 parts of polystyrene particles, 10 parts of fumed silica, 20 parts of portland cement, 5 parts of gypsum and 5 parts of fly ash;
the type of the Portland cement is 42.5R, the gypsum in the powder is calcined desulfurized gypsum, and the performance indexes of the calcined gypsum are that the calcination temperature is 650-800 ℃, the fineness is more than or equal to 100 meshes, the standard viscosity is less than or equal to 40%, the initial setting time is more than 10min, the final setting time is less than or equal to 20min, the absolute dry compressive strength MPa is more than or equal to 40, and the absolute dry flexural strength MPa is more than or equal to 40.
S1, subdividing, crushing and screening the polystyrene material (waste and old recycled) to form uniform fine particles, and crushing the uniform fine particles to obtain polystyrene particles with the particle size of 0.5mm-2.5 mm;
s2, selecting 60 parts of polystyrene material in S1, adding 60 parts of polystyrene material into a sealed tank, adding 10 parts of fumed silica, adding 20 parts of 42.5R portland cement, 5 parts of gypsum and 5 parts of fly ash, stirring in a roller, stirring at low speed to form a mixed material, injecting steam, stirring at high speed, forming a reinforced coating protective layer on polystyrene particles under the action of steam high-temperature hydration physical reaction in the motion process, and drying to ensure that the coated polystyrene particles have light weight, fire resistance and flame resistance, wherein the density of the processed polystyrene particles is 10-15KG/m3；
S3, selecting a belt type bidirectional convection mode to stir the powder for 5 minutes at a high speed, selecting 30 parts of aggregate to be added into the tank body to be stirred with the powder for 5 minutes at a low speed, and preparing a finished product to be automatically packaged, wherein the preparation process solves the technical problem that the material is easy to separate in the prior art, the polystyrene is light, in the prior art, the mixing of polystyrene particles is easy to separate to cause layering, and the mixing performance is poor, and the process solves the problems and has the main principle that: the aggregate and the powder are added with a certain proportion of water and stirred to form a three-dimensional porous network structure, so that the compressive strength of the product is increased, and the product has ultralow thermal conductivity.
Example 3
An internal storage and external protection type wall composite heat insulation material comprises a heat insulation material used for the exterior of an exterior wall, and comprises powder and aggregate, wherein the powder comprises, by weight, 75 parts of Portland cement, 35 parts of gypsum, 4 parts of fumed silica, 8.5 parts of waterproof rubber powder, 2.5 parts of cellulose ether, 3 parts of PP fiber, 3 parts of modified acrylic rubber powder, 1 part of a thickening and lubricating agent, 3 parts of wood fiber and 2 parts of enhanced foaming powder;
the aggregate comprises, by weight, 60 parts of polystyrene particles, 10 parts of fumed silica, 20 parts of portland cement, 5 parts of gypsum and 5 parts of fly ash.
The type of the Portland cement is 42.5R, the gypsum in the powder is calcined desulfurized gypsum, and the performance indexes of the calcined gypsum are that the calcination temperature is 650-800 ℃, the fineness is more than or equal to 100 meshes, the standard viscosity is less than or equal to 40%, the initial setting time is more than 10min, the final setting time is less than or equal to 20min, the absolute dry compressive strength MPa is more than or equal to 40, and the absolute dry flexural strength MPa is more than or equal to 40.
S1, subdividing, crushing and screening the polystyrene material (waste and old recycled) to form uniform fine particles, and crushing the uniform fine particles to obtain polystyrene particles with the particle size of 0.5mm-2.5 mm;
s2, selecting 60 parts of polystyrene material in S1, adding 60 parts of polystyrene material into a sealed tank, adding 10 parts of fumed silica, adding 20 parts of 42.5R portland cement, 5 parts of gypsum and 5 parts of fly ash, stirring in a roller, stirring at low speed to form a mixed material, injecting steam, stirring at high speed, forming a reinforced coating protective layer on polystyrene particles under the action of steam high-temperature hydration physical reaction in the motion process, and drying to ensure that the coated polystyrene particles have light weight, fire resistance and flame resistance, wherein the density of the processed polystyrene particles is 10-15KG/m3；
S3, selecting a belt type bidirectional convection mode to stir the powder for 5 minutes at a high speed, selecting 30 parts of aggregate to be added into the tank body to be stirred with the powder for 5 minutes at a low speed, and preparing the powder into a finished product to be automatically packaged.
Example 4
The dry apparent density, compressive strength, softening coefficient, thermal conductivity coefficient, linear shrinkage rate, tensile strength, tensile bonding strength (with cement mortar) and combustion performance grade of the formula shown in example 2 are determined by entrusting the building engineering quality detection center of Jilin province, and the detection results are shown in the following table.
Figure BDA0003449056590000071
Figure BDA0003449056590000081
The dry density of the sample is 189KG/m3Compressive strength of 0.24MPa, softening coefficient of 0.55, thermal conductivity of 0.0489W (M.K), compressive strength MPa0.2, and combustion performance grade (A2).
The detection result of the combustion performance in the detected project meets the A (A2) level index requirement in the GB 8624-.
Example 5
The construction method is selected from the embodiment 2 for construction, and comprises the following steps:
the packaged finished material is fed to a construction site, the material is mixed by a stirring and spraying all-in-one machine, water is subjected to wet stirring according to the proportion of 0.8:1 for 3-5 minutes to form thick slurry, and the thick slurry is sprayed on an external construction operation surface of an external wall in a spraying mode, wherein the operation parameters of the stirring and spraying all-in-one machine are as follows: power 11KW, air pump motor 4KW, pulp output 4-6 cubic meters per hour, plane conveying 60 meters and vertical conveying 30 meters. The technical performance index, dry density 182-3Compressive strength of 0.28MPa, softening coefficient of 0.55, thermal conductivity of 0.048W (m.k), tensile strength MPa0.2, and combustion performance grade (A)2) S5, the inner side of the outer wall is insulated by adopting a gypsum-based insulation and plastering system, desulfurized gypsum is used as a main cementing material, glass beads, an additive and the like are mixed into the gypsum mortar to prepare light plastering, and the proportioning result is that the lightweight bottom plastering gypsum is proportioned according to the requirements of flexural strength and compressive strength of the lightweight bottom plastering gypsum in GB/28677-The internal heat storage system of the invention realizes the functions of heat preservation and energy saving by the combined work of internal heat storage and external heat preservation.
The inner side material of the outer wall of the internal storage heat insulation system adopts a gypsum-based system, and the main material is power plant waste desulfurized gypsum; the outer side of the outer wall of the external heat preservation system adopts a polyphenyl particle slurry system, and the main material is polyphenyl particles which are crushed and selected by polyphenyl plates (containing waste and old recycled polyphenyl plates).
The invention replaces the mortar plastering of the inner wall. The detection technical parameters include that the thermal conductivity coefficient is 0.1-0.2 w/(m.k), the paving-assisted thermal insulation effect is good, the bonding property is low in linear shrinkage rate of 0.3MPa, the yield of the building block is similar to that of an aerated concrete block, and the problems of hollowing, cracking and falling of a plastering layer are basically solved.
The invention relates to a single-component material which is formed by upgrading and improving an original rubber powder polyphenyl particle heat insulation system, and the traditional rubber powder polyphenyl particle heat insulation material belongs to a double-component heat insulation material, so that the technical problems of unstable product performance, poor thermal engineering and difficulty in quality control caused by the fact that the traditional material is a heat insulation material which is randomly proportioned by ordinary workers at a construction site are solved.
The invention belongs to the heat preservation system, but the material production process is that the heat preservation material is produced by scientific proportioning in a factory and adopting an advanced process, the development and technology are continuously consolidated for many years, according to the principle of lean refinement, a high-molecular waterproof polymer cementing material is adopted, a waste polyphenyl material is crushed and processed to be used as a lightweight aggregate, fly ash, flexible waterproof rubber powder, silicate, aluminum silicate fiber and PP fiber wood fiber are added, a foaming reinforcing agent is added, a certain proportion of water is added, and a three-dimensional porous network structure is formed after stirring, so that the compression strength of the product is increased, and the product also has thermal conductivity. The heat-insulating layer is endowed with higher weather resistance, water resistance and fire resistance (A2 grade) by applying similar compatible physical principles.
And in S5, that is, in the internal storage system, the weight of the plastering gypsum is compared with that of the cement mortar, that is, the thickness of the plastering gypsum is 0.01 m, and the density is 900Kg/m3In an amount of 9Kg/m2(ii) a The thickness of the cement mortar is 0.02 m, and the density is 1980Kg/m3The dosage is 39.6Kg/m2The weight is reduced by approximately 3/4. One block of 10000m2Residential calculation of (2), inner wall area of about 25000m2The weight can be reduced by 750 tons, the dead weight of the building is reduced, the sizes and the reinforcing bars of the beam, the column and the foundation are greatly reduced, the great reduction of the engineering cost is realized by the great saving of the concrete and the reinforcing bars, the slurry of the outer wall can be thinner by the cooperation of the gypsum base, the great economic benefit is also realized, and the cost is saved.
In the construction, the building is connected without a cavity, secondary bonding of a sheet material type heat insulation material is not needed, a higher heat insulation effect is provided for the building, and the building has the same service life as the building theoretically. The product has the advantages of small heat conductivity coefficient, high adhesion, water resistance, wind pressure resistance, impact resistance and strong weather resistance, can greatly reduce the energy consumption of heating and refrigeration when being used for an external wall structure, and adopts a gypsum-based heat-preservation plastering system in combination with an internal wall, thereby not only replacing the traditional mortar plastering and leveling, but also really and effectively meeting the high-standard building energy-saving requirement provided by the existing country by the internal-storage external-protection heat-preservation system. The raw materials are modified materials, and the environment-friendly material with nontoxic, tasteless and harmless polyethylene waste as the aggregate is selected, so that no residue and three-waste emission are generated in the production and construction processes. The product can be formed with the material during construction, has air permeability, and the house can be warm in winter and cool in summer through heat preservation and heat insulation, is comfortable and pleasant, and has double performances of sound insulation and sound absorption.
The invention is easy to combine with wall base and other plates, and has high safety coefficient, and resistance to hollowing, falling, impact and wind pressure. Compared with other heat-insulating products, the product has simple and rapid construction, only needs to be added with water and stirred uniformly to be directly put on the wall, has short construction period, low labor cost, good workability and strong operability, and can realize one-time post-plastering construction. At present, the design unit has no choice for selecting A-grade heat-insulating materials except rock wool boards in the selection of heat-insulating materials for the exterior wall of a building, and the rock wool boards have to be selected for fire safety and can not be accepted by the construction unit. The polyphenyl particle thermal insulation system is listed in 7 newly-added thermal insulation systems in the national catalog (JGJ144-2019) standard, and a new choice is provided for design and construction units.
The invention belongs to an organic and inorganic modified heat insulation material, which integrates the low heat conduction of organic heat insulation materialsThe single body has high thermal resistance, is maximally compatible with the fireproof performance of inorganic heat-insulating materials, has high weather resistance, belongs to a full-adhesion integrated type, avoids the generation of air smoke window channels between the heat-insulating layer and the base wall, and achieves the fireproof performance through detection (A)2Class), weather resistance theoretically should achieve the same life as the building according to the principle of similar compatibility of the materials used.
The material is incorporated into a newly added system according to the newly issued industry standard JGJ144-2019 external wall external thermal insulation engineering technical standard JGJ/T253-2019 inorganic lightweight aggregate mortar thermal insulation system technical approval which is issued twice continuously in 2019, 10 months and 2019, 11 months in China, and relevant methods and inspection methods are provided.
The application of the building external wall external thermal insulation engineering in Qinghai, inner Mongolia and other places has good user response for many years. Compared with other heat insulation materials, the heat insulation material can save labor, time and materials, is the best material for the current wall heat insulation selection, meets the energy-saving requirement, can greatly consume garbage and change the garbage into valuable in the application process of the technology because the heat insulation system has ultralow cost and the main components of the materials are industrial garbage and domestic garbage generated by the society, realizes an industrial standard, improves the utilization rate of solid waste, greatly reduces white pollution, is beneficial to the nation and people, and serves the market with high quality.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. All the above-mentioned electric components are matched and belong to the existent technology. Additional modifications will readily occur to those skilled in the art. The invention is therefore not to be limited to the specific details described herein, without departing from the general concept as defined by the appended claims and their equivalents.

Claims (8)

1. The composite heat-insulating material for the wall with the internal storage and the external protection is characterized by comprising a heat-insulating material for the exterior of an exterior wall, and powder and aggregate, wherein the powder comprises 65-75 parts by weight of Portland cement, 25-35 parts by weight of gypsum, 2-4 parts by weight of fumed silica, 6.5-8.5 parts by weight of waterproof rubber powder, 2-2.5 parts by weight of cellulose ether, 1.5-3 parts by weight of PP fiber, 1-3 parts by weight of modified acrylic rubber powder, 0.5-1 part by weight of thickening and lubricating agent, 1-3 parts by weight of wood fiber and 1-2 parts by weight of enhanced foaming powder;
the aggregate comprises, by weight, 60 parts of polystyrene particles, 10 parts of fumed silica, 20 parts of portland cement, 5 parts of gypsum and 5 parts of fly ash.
2. The composite heat-insulating material for the wall with the internal storage and the external protection as claimed in claim 1, wherein the powder comprises, by weight, 70 parts of Portland cement, 30 parts of gypsum, 3 parts of fumed silica, 7.5 parts of waterproof rubber powder, 2.2 parts of cellulose ether, 2 parts of PP fiber, 1 part of modified acrylic rubber powder, 0.5 part of thickening agent, 2 parts of wood fiber and 1.5 parts of reinforced foaming powder.
3. The composite thermal insulation material for wall body with internal storage and external protection as claimed in claim 1, wherein the polystyrene particles in the aggregate have a particle size of 0.5mm-2.5mm and a density of 10-15KG/m3。
4. The composite heat-insulating material for the internal storage and external protection wall body as claimed in claim 1, wherein the gypsum in the powder is calcined desulfurized gypsum, and the performance indexes of the calcined desulfurized gypsum are that the calcination temperature is 650-800 ℃, the fineness is greater than or equal to 100 meshes, the standard viscosity is less than or equal to 40%, the initial setting time is greater than 10min, the final setting time is less than or equal to 20min, the absolute compressive strength MPa is greater than or equal to 40, and the absolute flexural strength MPa is greater than or equal to 40.
5. The composite thermal insulation material for the external wall body with the internal storage and the external protection as claimed in any one of claims 1 to 4, wherein the type of the portland cement is 42.5R.
6. The preparation method of the internal storage and external protection type external wall composite thermal insulation material according to any one of claims 1 to 5 comprises the following steps:
s1, finely dividing, crushing and screening the polystyrene material to form uniform fine particles, and crushing the fine particles to obtain polystyrene particles with the particle size of 0.5mm-2.5 mm;
s2, selecting 60 parts of polystyrene material in S1, adding 60 parts of polystyrene material into a sealed tank, adding 10 parts of fumed silica, adding 20 parts of 42.5R portland cement, 5 parts of gypsum and 5 parts of fly ash, stirring in a roller, stirring at low speed to form a mixed material, injecting steam, stirring at high speed, and drying, wherein the density of the processed polystyrene particles is 10-15KG/m3；
And S3, selecting a belt type bidirectional convection mode for high-speed stirring for 5 minutes, selecting 30 parts of aggregate, adding the aggregate into the tank, stirring the aggregate and the powder at a low speed for 5 minutes, and preparing a finished product for automatic packaging.
7. The construction method of the composite material for the external wall body with the internal storage and the external protection according to any one of claims 1 to 6, characterized by comprising the following steps:
s4, mixing the packaged finished materials with a stirring and spraying integrated machine on a construction site, carrying out wet stirring on the mixed materials and water according to the proportion of 0.8:1 for 3-5 minutes to form thick slurry, and spraying on an external construction operation surface of the external wall in a spraying manner;
s5, adopting a gypsum-based heat-preservation plastering system for heat preservation of the inner side of the outer wall, mixing desulfurized gypsum serving as a main cementing material with glass beads, an additive and the like to prepare the light plastering gypsum mortar, and proportioning the lightweight bottom plastering gypsum according to the requirements on the folding resistance and the compressive strength of the lightweight bottom plastering gypsum in GB/28677 plus 2012 plastering gypsum.
8. The construction method of the composite protective material for the external wall body with the internal storage and the external protection according to claim 7, wherein the operation parameters of the stirring and spraying integrated machine are as follows: power 11KW, air pump motor 4KW, pulp output 4-6 cubic meters per hour, plane conveying 60 meters and vertical conveying 30 meters.
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