CN110041026B - Environment-friendly energy-saving type external wall board and production method thereof - Google Patents
Environment-friendly energy-saving type external wall board and production method thereof Download PDFInfo
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- CN110041026B CN110041026B CN201910285693.6A CN201910285693A CN110041026B CN 110041026 B CN110041026 B CN 110041026B CN 201910285693 A CN201910285693 A CN 201910285693A CN 110041026 B CN110041026 B CN 110041026B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/04—Producing shaped prefabricated articles from the material by tamping or ramming
- B28B1/045—Producing shaped prefabricated articles from the material by tamping or ramming combined with vibrating or jolting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/005—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects with anchoring or fastening elements for the shaped articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
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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
-
- 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
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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
-
- 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
- E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
- E04C2/46—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose specially adapted for making walls
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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
- C04B2111/00017—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
- C04B2111/40—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
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention relates to the technical field of wall materials for buildings such as industrial plants, civil houses, hotels, schools and the like, in particular to an environment-friendly and energy-saving type externally-hanging wallboard and a production method thereof. The wallboard comprises the following raw materials in parts by weight: 900-1200 parts of lightweight concrete; 1.75-2.1 parts of an adhesive; 5.52-6.07 parts of energy-saving materials; 60-90 parts of a steel bar material; 25-30 parts of a pre-buried member; 2.2-3.3 parts of a composite connecting piece; decorating materials: 4.2-5.2 parts of inner wall putty, 5.2-7.0 parts of outer wall putty and 10.5-14 parts of waterproof emulsion paint. The invention utilizes industrial, agricultural and domestic wastes to produce the lightweight concrete, and the environment-friendly and energy-saving type external wall panel produced by the invention can meet the requirements of environment protection and energy saving in production and use in different areas such as the north, the south and the like. The invention has the advantages of no toxicity, no harm, flame retardance, heat preservation, energy conservation, frost resistance, sound insulation, environmental protection, good durability and long service life (more than 70 years), and simultaneously the product has the advantages of waste utilization and environmental protection in the production process.
Description
Technical Field
The invention relates to the field of wall materials for buildings such as industrial plants, civil houses, hotels, schools and the like, in particular to an environment-friendly and energy-saving type externally-hanging wallboard and a production method thereof.
Background
The global energy crisis is becoming more and more severe, so that energy conservation and effective energy utilization become more important. At present, the energy consumed by our country on the building accounts for nearly 30% of the total energy consumption of the society, and the energy also increases at a speed of more than 1% per year, and if the energy is not controlled, the energy may account for 40% of the total energy consumption by 2020.
The existing external wall panel products for steel structure buildings and reinforced concrete buildings have poor energy-saving and environment-friendly performance, particularly the cold (hot) bridge of the composite external wall panel cannot be solved, indoor frost can be seen in winter due to the cold bridge particularly obviously in the north, and when the indoor temperature is slightly higher, the frost forms condensed water at the frost hanging part; a large-scale enterprise in a certain city in the north builds a talent apartment with more than 140 meters, and because the wall of the non-bridge-cutoff external wall enclosure structure is adopted, the defect that indoor frost is hung or condensed water is formed in winter is caused. And the energy loss is large in the south of China during refrigeration due to the heat bridge, and the problem is not solved for many years.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an environment-friendly energy-saving type external wall board and a production method thereof. The method is nontoxic and harmless, environment-friendly, heat-insulating and energy-saving, and reduces the raw material consumption and energy consumption while fully utilizing industrial wastes.
In order to achieve the purpose, the invention adopts the following technical scheme:
the environment-friendly energy-saving type external wall board comprises the following raw materials in parts by weight:
decorating materials: 4.2-5.2 parts of inner wall putty, 5.2-7.0 parts of outer wall putty and 10.5-14 parts of waterproof emulsion paint;
the lightweight concrete is foam particle concrete, and the concrete comprises the following raw materials in parts by weight:
the light coarse particle material isParticles made of one or more of waste polystyrene foam, polyurethane foam and waste phenolic resin foam, the particle size of the particles is 2-5 mm, and the bulk density of the particles is 10Kg/m3；
The flame retardant is one or more of magnesium hydroxide, aluminum hydroxide, antimony trioxide and zinc borate, the mass percentage content is more than or equal to 95%, and the particle size is 400 meshes;
the cementing material is one of 42.5 and 52.5 cement;
the adhesive is one of polyvinyl acetate emulsion, ethylene-propylene emulsion and vinyl acetate-ethylene copolymer emulsion;
the fine aggregate is washed iron tailing sand, the fine mould is 2.01, the granularity is less than 1.25mm, and the bulk density is 1390Kg/m3Apparent density hole 2710Kg/m3The porosity is 48.7 percent, and the mud content is less than 3 percent;
the auxiliary material is blast furnace slag micro powder, the content of sulfur trioxide in percentage by mass is less than or equal to 4%, and the ignition loss is less than or equal to 3%;
the reinforced fiber is made of one of corrosion-resistant steel of 10CrNiCuP and 8CrNiCuP, the fiber diameter is 0.8-1.2 mm, and the fiber length is 25-40 mm;
the waterproof agent is one of aluminum sulfate, calcium stearate, zinc stearate, methyl siloxane, methyl sodium silicate, methyl potassium silicate, methyl sodium silanol, methyl potassium silanol and aluminum potassium sulfate dodecahydrate;
the water reducing agent is one of a polycarboxylic acid water reducing agent and a naphthalene water reducing agent.
The adhesive is acrylate emulsion, the pH value is 2.0-4.0, the solid content is 40 +/-0.5%, the condensation limit is 50g/lcn, and the viscosity is 12 +/-0.5 s.
The energy-saving material is one of a flame-retardant polyphenyl board, a flame-retardant polyurethane board and a flame-retardant phenolic resin board, and the density of the energy-saving material is 20-22 kg/m3。
The steel bar is corrosion-resistant steel wire or cold-rolled corrosion-resistant deformed steel; a diameter of 5-12 mm and a density of 60-90 Kg/m3。
The composite connecting piece is a composite broken bridge type JFRP connecting piece and is made of 10CrNiCuP and 8CrNiCuP core materials coated and wound by glass fiber reinforced plastics, and the coreThe diameter of the material is 10-20 mm, the length is less than or equal to 150mm, and the density is 4-6 pieces/m2The thickness of the glass fiber reinforced plastic composite layer is 2-3 mm, and the density of the composite layer is more than 1750Kg/m3And a thermal conductivity of 0.45 to 0.80 w/m.k.
The pre-embedded part assembly comprises corrosion-resistant steel, a lifting ring and an assembly connecting piece; the corrosion-resistant steel is made of 10CrNiCuP or 8CrNiCuP, the lifting ring is made of round steel with the diameter of 12-20 mm, the assembly connecting piece is made of a plate with the thickness of 10-15 mm, the diameter of the anchoring rib is 10-20 mm, and the density of the anchoring rib is 25-32 Kg/m2。
The decorative material is 1.2-1.5 Kg/m of interior wall putty per square meter2The dosage of the exterior wall putty per square meter is 1.5-2.0 Kg/m2The dosage of the waterproof latex paint per square meter is 1.5-2.0 Kg/m2。
A production method of an environment-friendly energy-saving type external wall board specifically comprises the following steps:
1) preparing the lightweight concrete
Firstly, adding dry materials except the light coarse particle materials into a forced stirrer according to the components, and uniformly stirring for 1.5-2 min;
secondly, adding water and other liquid materials according to the components, and uniformly stirring for 1.5-2 min;
thirdly, adding the light coarse particle materials according to the components, and uniformly stirring for 50-75 s;
2) manufacturing steel bar, lifting ring and embedded part
Firstly, longitudinal and transverse ribs are made of corrosion-resistant steel with the diameter of 5-12 mm, the distance is less than @200, reinforcing steel bars are arranged on the periphery and corners of a door and window opening, and the reinforcing steel bars are made of corrosion-resistant deformed steel bars with the diameter of 12-14 mm;
secondly, the lifting ring is made of U-shaped corrosion-resistant steel with the diameter of 14-20 mm, and the total length is 1200-1600 mm;
thirdly, the pre-embedded part is made of corrosion-resistant steel plates with the thickness of 10-15 mm, the anchoring ribs are made of corrosion-resistant steel with the diameter of 10-12 mm, and the distance is less than @ 100; the connecting bolts M14-18 are made of corrosion-resistant steel, the length of the working rod is 100-120 mm, and the length of the thread is 60-80 mm;
3) manufacturing energy-saving material plates, spraying adhesive and assembling connecting pieces into parts
Firstly, energy-saving material plate: a density of 20 to 22kg/m3The thickness is 60-80 mm, the width is more than 600mm, and the length is more than 600 mm;
secondly, spraying an adhesive on the surface of the energy-saving material plate, wherein the dosage of the adhesive per square meter is 0.25-0.3 Kg/m2；
Assembling JFRP connecting pieces on the energy-saving material plate, wherein the longitudinal and transverse distances are 400mm and 600mm respectively, and the distance from the edges is more than 100 mm;
assembling the JFRP connecting piece on the energy-saving material plate, wherein the anchoring length in a single blade is not less than 30mm, and the thickness of the protective layer is not less than 25 mm;
4) a mold table and a mold are combined, and a release agent is coated;
5) arranging and installing outer-leaf steel bars, and preparing cushion blocks by using cement mortar to ensure that the thickness of a lightweight concrete protective layer of the steel bars is more than or equal to 20 mm;
6) pouring outer leaf lightweight concrete, wherein the amplitude of a vibration exciter of a die table is less than or equal to 1.5mm, the frequency is less than or equal to 16 times/S, and the vibration is carried out for 10-20S;
7) arranging and installing energy-saving material plates and connecting piece parts;
8) after the perforated plate tube core is coated with a release agent, arranging and installing the perforated plate tube core;
9) arranging and installing inner-leaf steel bars, arranging and installing a hanging ring and an embedded part, and preparing a cushion block by using cement mortar to ensure that the thickness of a lightweight concrete protective layer of the steel bars is more than or equal to 20 mm;
10) pouring lightweight concrete for the inner blade, wherein the amplitude of a vibration exciter of the die table is less than or equal to 1.5mm, the frequency is less than or equal to 16 times/S, and the vibration time is 10-20S;
11) naturally curing, controlling the temperature in a steam kiln at 50-65 ℃, curing for 6h, discharging from the kiln, and maintaining to 28D in a moisture-preserving manner;
12) the amount of the decorative putty for scraping the inner wall is 1.2 to 1.5Kg/m per square meter2(ii) a The dosage of the putty for scraping the outer wall is 1.5 to 2.0Kg/m per square meter2；
13) Spraying waterproof emulsion paint with the dosage of 1.5-2.0 Kg/m per square meter2。
Compared with the prior art, the invention has the beneficial effects that:
1. the inventionThe lightweight concrete produced by industrial, agricultural and domestic wastes has an entity density of 900-1200 kg/m3The compression strength is 15.5-21.0 MPa, the water absorption is less than 1%, the freeze-thaw (70 times) loss is less than 2%, and the environment-friendly and energy-saving type external wall panel produced by the method can meet the requirements of environment protection and energy saving in production and use in different areas of the north, the south and the like.
2. The coating has the advantages of no toxicity, no harm, flame retardance, heat preservation, energy conservation, freezing resistance, sound insulation, environmental protection, good durability and long service life (more than 70 years), and simultaneously the product has the advantages of waste utilization and environmental protection in the production process.
Detailed Description
The following further illustrates embodiments of the invention, but is not intended to limit the scope thereof:
the technical scheme of the invention is as follows:
the first step is that the following materials are combined according to the mass portion to prepare the lightweight concrete for the environment-friendly and energy-saving type external wall panel.
1. Preparing raw materials according to the mass part ratio
Light coarse particle material: one of particles made of waste polystyrene foam, polyurethane foam and waste phenolic resin foam is required to have the particle size of 2-5 mm and the bulk density of 10Kg/m3。
Flame retardant: one to two of magnesium hydroxide, aluminum hydroxide, antimony trioxide and zinc borate, the required content is more than or equal to 95 percent, and the grain diameter is 400 meshes.
And (3) cementing materials: is one of 42.5 and 52.5 cement.
Adhesive: one of polyvinyl acetate emulsion, ethylene-propylene emulsion and vinyl acetate-ethylene copolymer emulsion.
Fine aggregate: washing iron tailing sand with water, fine molding with a particle size of less than 1.25mm, and bulk density of 1390Kg/m3Apparent density hole 2710Kg/m3The porosity is 48.7 percent, and the mud content is less than 3 percent.
Auxiliary materials: the content of sulfur trioxide in the blast furnace slag micro powder is less than or equal to 4 percent, and the loss on ignition is less than or equal to 3 percent.
Reinforcing fibers: 10CrNiCuP or 8CrNiCuP corrosion-resistant steel is selected, the diameter phi of the fiber is 0.8-1.2 mm, and the length of the fiber is 25-40 mm.
Water-proofing agent: one of aluminum sulfate, calcium stearate, zinc stearate, methyl siloxane, sodium methyl silicate, potassium methyl silicate, sodium methyl silanol, potassium methyl silanol and aluminum potassium sulfate dodecahydrate.
Water reducing agent: one of a polycarboxylic acid water reducing agent and a naphthalene water reducing agent.
Water: the building material uses water to execute corresponding national standard specifications.
2. The invention relates to a production process of lightweight concrete
Firstly, adding dry materials except the light coarse particle materials into a forced stirrer according to the components, and uniformly stirring for 1.5-2 min;
secondly, adding water and other liquid materials according to the components, and uniformly stirring for 1.5-2 min;
thirdly, adding the light coarse particle materials according to the components, and uniformly stirring for 50-75 s;
the second step is that the production of the environment-friendly energy-saving type external wall panel is to combine the following materials according to the mass portion to prepare qualified products:
1. preparing the raw materials according to the mass part ratio, wherein the main raw materials are
Light concrete: 900-1200 parts of a binder; adhesive: 1.75-2.1 parts;
energy-saving materials: 5.52-6.07 parts; steel bar material: 60-90 parts;
pre-embedding: 25-30 parts of a solvent; compound connecting piece: 2.2-3.3 parts;
decorating materials: inner wall putty: 4.2-5.2 parts of exterior wall putty: 5.2-7.0 parts of waterproof emulsion paint: 10.5-14 parts, wherein:
light concrete: foam particle concrete.
Adhesive: the acrylate emulsion is required to have a pH of 2.0-4.0 and solid content: 40. + -. 0.5%, condensation limit 50g/lcn, viscosity 12. + -. 0.5s (coating cup No. 4).
Energy-saving materials: flame-retardant polyphenyl board, flame-retardant polyurethane board, flame-retardant phenolic resin board and density of 20-22 kg/m3One of (1);
reinforcing steel bars: the corrosion-resistant steel wire or the cold-rolled corrosion-resistant deformed steel bar has the following required specifications: phi is 5-12 mm; 60 to 90Kg/m3。
Compound connecting piece: the composite bridge-cut-off type JFRP connecting piece is made by coating and winding a core material made of self-made corrosion-resistant steel (the material is 10CrNiCuP or 8CrNiCuP) on glass fiber reinforced plastic, and the specification of the core material is 10-20 mm, the length is less than or equal to 150mm, and 4-6 square meters are required. The thickness of the glass fiber reinforced plastic composite layer is 2-3 mm, and the density of the composite layer is more than 1750Kg/m3And a thermal conductivity of 0.45 to 0.80 w/m.k.
Pre-embedding: corrosion resistant steel (the material chooses for use 10CrNiCuP, 8CrNiCuP) rings and assembly connectors for the assembly, requires that rings choose round steel phi 12 ~ 20mm for use, and plate thickness b is chosen for the assembly connectors: 10-15 mm, 10-20 mm of anchoring rib phi, 25-32 Kg/m3。
Decorating materials: the building wall putty powder is characterized by comprising 1.2-1.5 Kg of inner wall putty per square meter, 1.5-2.0 Kg of outer wall putty per square meter and 1.5-2.0 Kg of waterproof emulsion paint per square meter.
2. The production method of the environment-friendly energy-saving type outer wall board comprises the following steps:
1) manufacturing of steel bar, lifting ring and embedded part
Firstly, steel bar configuration: the longitudinal and transverse ribs are corrosion-resistant steels phi 5-phi 12, the distance is less than @200, the length is according to the corresponding size of the cladding panel, the reinforcing steel bars arranged at the periphery and the corner of the door and window opening are corrosion-resistant screw-thread steels phi 12-14, and the steel bars are all manufactured according to the corresponding standard of national standard.
Secondly, the lifting ring is provided with U-shaped corrosion-resistant steel phi 14-phi 20, the total length is 1200-1600 mm, and the steel is manufactured according to corresponding national standard specifications.
Thirdly, configuring the thickness b of the corrosion-resistant steel plate by using the embedded piece: 10-15 mm, wherein the anchoring ribs are corrosion-resistant steel phi 10-phi 12, and the distance is less than @ 100; the pre-buried member is provided with connecting bolts made of corrosion-resistant steel M14-18, the length of a working rod of the corrosion-resistant bolt is 100-120, and the length of a thread is 60-80 mm; all manufactured according to the corresponding standard of national standard.
2) Manufacturing energy-saving material plates, spraying adhesive and assembling connecting pieces into parts
Firstly, an energy-saving material plate with the density of 20-22 kg/m3The steel plate is processed into a steel plate with the thickness of 60-80 mm, the width of more than 600mm and the length of more than 600 mm.
Secondly, spraying an adhesive on the surface of the energy-saving material plate, wherein the adhesive is 0.25-0.3 kg per square meter.
And thirdly, assembling the JFRP connecting piece on the energy-saving material plate, wherein the longitudinal and transverse distances are respectively 400mm and 600mm, and the distance from the edge is more than 100 mm.
And fourthly, assembling the JFRP connecting piece on the energy-saving material plate, wherein the anchoring length in a single blade is not less than 30mm, and the thickness of the protective layer is not less than 25 mm.
3) A mold table, a mold combination and a coating parting medium.
4) And arranging and installing the outer-leaf steel bars, and ensuring that the thickness of the lightweight concrete protective layer of the steel bars is more than or equal to 20mm by using the cushion blocks made of cement mortar.
5) And pouring the lightweight concrete of the outer leaves, wherein the amplitude of a vibration exciter of the die table is less than or equal to 1.5mm, the frequency is less than or equal to 16 times/S, and the vibration is carried out for 10-20S.
6) And arranging and installing the energy-saving material plates and the connecting piece parts.
7) And after the perforated plate tube core is coated with a release agent, arranging and installing the perforated plate tube core.
8) The inner-leaf steel bars are arranged and installed, the hanging rings and the embedded parts are arranged and installed, and the cushion blocks made of cement mortar are used for ensuring that the thickness of the lightweight concrete protective layer of the steel bars is larger than or equal to 20 mm.
9) Pouring the light concrete of the inner blade, wherein the amplitude of a vibration exciter of the die table is less than or equal to 1.5mm, the frequency is less than or equal to 16 times/S, and the vibration time is 10-20S.
10) And naturally maintaining. And conditionally controlling the temperature of the steam entering the kiln to be 50-65 ℃, curing for 6h, and discharging from the kiln. And (5) moisturizing and maintaining to 28D.
11) 1.2-1.5 kg of decorative putty for scraping interior walls per square meter and 1.5-2.0 kg of putty for scraping exterior walls per square meter.
12) And spraying 1.5-2.0 kg of waterproof emulsion paint per square meter.
And (6) detecting and inspecting, and warehousing qualified products.
Example 1:
the first step is that the following materials are combined according to the mass portion to prepare the lightweight concrete for the environment-friendly and energy-saving type external wall panel.
Preparing the raw materials according to the mass part ratio, wherein
Light coarse particle material: waste polyphenyl foam particles, 5.0 parts.
Flame retardant: 15.0 portions of magnesium hydroxide with the content more than or equal to 95 percent and the grain diameter of 400 meshes.
And (3) cementing materials: 42.5 parts of cement and 470 parts of cement.
Adhesive: 3.0 parts of ethylene-propylene emulsion.
Fine aggregate: 900 parts of iron tailing sand washed with water.
Auxiliary materials: 30 parts of blast furnace slag micro powder.
Reinforcing fibers: 30 parts of corrosion-resistant steel fiber.
Water-proofing agent: methylsiloxane, 12.9 parts.
Water reducing agent: 7.05 parts of a polycarboxylic acid water reducing agent.
Water: the building material uses water, and the corresponding national standard specification is executed, 300 parts.
The second step is that the production of the environment-friendly energy-saving type external wall panel is to combine the following materials according to the mass portion to prepare qualified products:
preparing the raw materials according to the mass part ratio, wherein
Light concrete: 1200 parts of foam particle concrete.
Adhesive: 1.75 parts of acrylate emulsion.
Energy-saving materials: flame-retardant polystyrene board with density of 20/m3And 5.52 parts.
Reinforcing steel bars: corrosion resistant steel wire, specification: phi 6.5 mm; 70Kg/m3。
Compound connecting piece: the composite bridge-cutoff JFRP connecting piece has the specification of phi 16mm, the length of less than or equal to 150mm and 6 per square meter.
Pre-embedding: corrosion resistant steel rings and assembly connectors are used in the assembly, and round steel phi 14mm is selected for use to rings, and panel thickness b is selected for use to assembly connectors: 10mm, 10mm of anchoring rib, 30Kg/m3。
Decorating materials: the putty for the inner wall is 1.2Kg per square meter, the putty for the outer wall is 1.5Kg per square meter, and the waterproof emulsion paint is 1.5Kg per square meter.
And (3) detection results: solid density 1212.3kg/m3The compression strength is 21.03MPa, the water absorption is less than 1 percent, and the loss of freeze thawing (50 times) is less than 2 percent.
Example 2:
the first step is that the following materials are combined according to the mass portion to prepare the lightweight concrete for the environment-friendly and energy-saving type external wall panel.
Preparing the raw materials according to the mass part ratio, wherein
Light coarse particle material: 6.0 parts of waste polyurethane foam particles.
Flame retardant: 18.0 portions of aluminum hydroxide with the content more than or equal to 95 percent and the grain diameter of 400 meshes.
And (3) cementing materials: 42.5 parts of cement and 470 parts of cement.
Adhesive: 3.6 parts of polyvinyl acetate emulsion.
Fine aggregate: 850 parts of iron tailing sand washed with water.
Auxiliary materials: 30 parts of blast furnace slag micro powder.
Reinforcing fibers: 30 parts of corrosion-resistant steel fiber.
Water-proofing agent: potassium methylsilicate, 14.1 parts.
Water reducing agent: 7.05 parts of a polycarboxylic acid water reducing agent.
Water: the building material uses water, and corresponding national standard specifications are implemented, 290 parts.
The second step is that the production of the environment-friendly energy-saving type external wall panel is to combine the following materials according to the mass portion to prepare qualified products:
preparing the raw materials according to the mass part ratio, wherein
Light concrete: 1100 parts of foamed particle concrete.
Adhesive: 1.75 parts of acrylate emulsion.
Energy-saving materials: the density of the flame-retardant polyurethane board is 22kg/m35.8 parts;
reinforcing steel bars: corrosion resistant steel wire, specification: phi is 6.5-12 mm; 70Kg/m3。
Compound connecting piece: the composite bridge-cutoff JFRP connecting piece has the specification of phi 16mm, the length of less than or equal to 150mm and 6 per square meter.
Pre-embedding: corrosion resistant steel rings and assembly connectors are used in the assembly, and round steel phi 14mm is selected for use to rings, and panel thickness b is selected for use to assembly connectors: 10mm, 10mm of anchoring rib, 30Kg/m3。
Decorating materials: the putty for the inner wall is 1.2Kg per square meter, the putty for the outer wall is 1.5Kg per square meter, and the waterproof emulsion paint is 1.5Kg per square meter.
And (3) detection results: solid density 1115.1kg/m3The compressive strength is 18.53MPa, the water absorption is less than 1 percent, and the loss of freeze thawing (50 times) is less than 2 percent.
Example 3:
the first step is that the following materials are combined according to the mass portion to prepare the lightweight concrete for the environment-friendly and energy-saving type external wall panel.
1) Preparing the raw materials according to the mass part ratio, wherein the main steps are
Light coarse particle material: 7.0 parts of waste phenolic resin foam particles.
Flame retardant: 21.0 portions of antimony trioxide with the content more than or equal to 95 percent and the grain diameter of 400 meshes.
And (3) cementing materials: 42.5 parts of cement and 470 parts of cement.
Adhesive: 4.2 parts of ethylene-propylene emulsion.
Fine aggregate: 800 parts of iron tailing sand washed with water.
Auxiliary materials: 30 parts of blast furnace slag micro powder.
Reinforcing fibers: 30 parts of corrosion-resistant steel fiber.
Water-proofing agent: 14.1 parts of sodium methylsiliconate.
Water reducing agent: 7.05 parts of a naphthalene water reducer.
Water: the building material uses water, and corresponding national standard specifications are implemented, wherein the weight is 285 parts.
The second step is that the production of the environment-friendly energy-saving type external wall panel is to combine the following materials according to the mass portion to prepare qualified products:
preparing the raw materials according to the mass part ratio, wherein
Light concrete: 1000 parts of foam particle concrete.
Adhesive: 1.75 parts of acrylate emulsion.
Energy-saving materials: flame-retardant phenolic aldehyde treeFat plate, density 22kg/m36.2 parts;
reinforcing steel bars: corrosion resistant steel wire, specification: phi 5 mm; 60Kg/m3。
Compound connecting piece: the composite bridge-cutoff JFRP connecting piece is required to have the specification of phi 16mm, the length of less than or equal to 150mm and 4 per square meter.
Pre-embedding: corrosion resistant steel rings and assembly connectors are used in the assembly, and round steel phi 14mm is selected for use to rings, and panel thickness b is selected for use to assembly connectors: 10mm, 10mm phi of anchoring rib and 25Kg/m3。
Decorating materials: the putty for the inner wall is 1.2Kg per square meter, the putty for the outer wall is 1.5Kg per square meter, and the waterproof emulsion paint is 1.5Kg per square meter.
And (3) detection results: solid density 1018.02kg/m3The compression strength is 17.15MPa, the water absorption is less than 1 percent, and the freeze-thaw (50 times) loss is less than 2 percent.
Example 4:
the first step is that the following materials are combined according to the mass portion to prepare the lightweight concrete for the environment-friendly and energy-saving type external wall panel.
Preparing the raw materials according to the mass part ratio, wherein
Light coarse particle material: 8.0 parts of waste phenolic resin foam particles.
Flame retardant: 24.0 portions of zinc borate with the content more than or equal to 95 percent and the grain diameter of 400 meshes.
And (3) cementing materials: 42.5 parts of cement and 470 parts of cement.
Adhesive: 4.8 portions of vinyl acetate-ethylene copolymer emulsion.
Fine aggregate: 750 parts of iron tailing sand washed with water.
Auxiliary materials: 30 parts of blast furnace slag micro powder.
Reinforcing fibers: 30 parts of corrosion-resistant steel fiber.
Water-proofing agent: potassium methylsilanolate, 14.1 parts.
Water reducing agent: 7.05 parts of a naphthalene water reducer.
Water: 280 parts of water for building materials, and corresponding national standard specifications.
The second step is that the production of the environment-friendly energy-saving type external wall panel is to combine the following materials according to the mass portion to prepare qualified products:
preparing the raw materials according to the mass part ratio, wherein
Light concrete: 800 parts of foam particle concrete.
Adhesive: 1.75 parts of acrylate emulsion.
Energy-saving materials: flame-retardant polystyrene board with density of 20kg/m3And 5.52 parts.
Reinforcing steel bars: the corrosion-resistant steel wire or the cold-rolled corrosion-resistant deformed steel bar has the following required specifications: phi 5 mm; 65Kg/m3。
Compound connecting piece: the composite bridge-cutoff JFRP connecting piece is required to have the specification of phi 16mm, the length of less than or equal to 150mm and 4 per square meter.
Pre-embedding: corrosion resistant steel rings and assembly connecting piece are used in the assembly, require that the rings select for use round steel phi 14mm, and plate thickness b is selected for use to the assembly connecting piece: 10mm, 10mm phi of anchoring rib and 25Kg/m3。
Decorating materials: the putty for the inner wall is 1.2Kg per square meter, the putty for the outer wall is 1.5Kg per square meter, and the waterproof emulsion paint is 1.5Kg per square meter.
And (3) detection results: solid density 1012.02kg/m3The compression strength is 17.14MPa, the water absorption is less than 1 percent, and the loss of freeze thawing (50 times) is less than 2 percent.
The invention utilizes industrial, agricultural and domestic wastes to produce lightweight concrete with the solid density of 900-1200 kg/m3The compression strength is 15.5-21.0 MPa, the water absorption rate is less than 1%, the freeze-thaw (70 times) loss is less than 2%, and the environment-friendly and energy-saving type external wall board produced by the technology can meet the requirements of environment protection and energy saving in production and use in different areas in the north, the south and the like.
The invention has the advantages of no toxicity, no harm, flame retardance, heat preservation, energy conservation, frost resistance, sound insulation, environmental protection, good durability and long service life (more than 70 years), and simultaneously the product has the advantages of waste utilization and environmental protection in the production process.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The environment-friendly energy-saving type external wall board is characterized by comprising the following raw materials in parts by weight:
decorating materials: 4.2-5.2 parts of inner wall putty, 5.2-7.0 parts of outer wall putty and 10.5-14 parts of waterproof emulsion paint;
the lightweight concrete is foam particle concrete, and the concrete comprises the following raw materials in parts by weight:
the light coarse particle material is particles made of one or more of waste polyphenyl foam, polyurethane foam and waste phenolic resin foam, the particle size is 2-5 mm, and the bulk density is 10k g/m3；
The flame retardant is one or more of magnesium hydroxide, aluminum hydroxide, antimony trioxide and zinc borate, the mass percentage content is more than or equal to 95%, and the particle size is 400 meshes;
the cementing material is one of 42.5 and 52.5 cement;
the adhesive is one of polyvinyl acetate emulsion, ethylene-propylene emulsion and vinyl acetate-ethylene copolymer emulsion;
the fine aggregate is washed iron tailing sand, the fine mold is 2.01, the granularity is less than 1.25mm, and the bulk density is 1390k g/m3Apparent density well 2710k g/m3The porosity is 48.7 percent, and the mud content is less than 3 percent;
the auxiliary material is blast furnace slag micro powder, the content of sulfur trioxide in percentage by mass is less than or equal to 4%, and the ignition loss is less than or equal to 3%;
the reinforced fiber is made of one of corrosion-resistant steel of 10CrNiCuP and 8CrNiCuP, the fiber diameter is 0.8-1.2 mm, and the fiber length is 25-40 mm;
the waterproof agent is one of aluminum sulfate, calcium stearate, zinc stearate, methyl siloxane, methyl sodium silicate, methyl potassium silicate, methyl sodium silanol, methyl potassium silanol and aluminum potassium sulfate dodecahydrate;
the water reducing agent is one of a polycarboxylic acid water reducing agent and a naphthalene water reducing agent;
the composite connecting piece is a composite broken bridge type JFRP connecting piece and is made of 10CrNiCuP and 8CrNiCuP core materials which are coated and wound by glass fiber reinforced plastics, the diameter of each core material is 10-20 mm, the length of each core material is less than or equal to 150mm, and the density of each core material is 4-6 pieces/m2The thickness of the glass fiber reinforced plastic composite layer is 2-3 mm, and the density of the composite layer is more than 1750k g/m3The heat conductivity coefficient is 0.45-0.80 w/m.k;
the decorative material is that the dosage of the interior wall putty per square meter is 1.2-1.5 k g/m2The dosage of the exterior wall putty per square meter is 1.5-2.0 k g/m2The dosage of the waterproof latex paint per square meter is 1.5-2.0 k g/m2。
2. The environment-friendly energy-saving type externally-hanging wallboard as claimed in claim 1, wherein the adhesive is acrylate emulsion, the pH is 2.0-4.0, the solid content is 40 ± 0.5%, the condensation limit is 50g/lcn, and the viscosity is 12 ± 0.5 s.
3. The environment-friendly energy-saving type externally-hung wallboard according to claim 1, wherein the energy-saving material is one of a flame-retardant polystyrene board, a flame-retardant polyurethane board and a flame-retardant phenolic resin board, and the density is 20-22 kg/m3。
4. The environment-friendly energy-saving type external wallboard according to claim 1, wherein the steel bar is corrosion-resistant steel wire or cold-rolled corrosion-resistant screw steel; a diameter of 5 to 12mm and a density of 60 to 90k g/m3。
5. The environment-friendly energy-saving type external wallboard according to claim 1, wherein the pre-buried member assembly comprises corrosion-resistant steel, a hanging ring and an assembly connecting member; the corrosion-resistant steel is made of 10CrNiCuP or 8CrNiCuPThe hoisting ring is made of round steel with the diameter of 12-20 mm, the assembly connecting piece is made of a plate with the thickness of 10-15 mm, the diameter of the anchoring rib is 10-20 mm, and the density is 25-32 k g/m2。
6. The production method of the environment-friendly energy-saving type externally-hung wallboard of claim 1 is characterized by comprising the following steps:
1) preparing the lightweight concrete
Firstly, adding dry materials except the light coarse particle materials into a forced stirrer according to the components, and uniformly stirring for 1.5-2 min;
secondly, adding water and other liquid materials according to the components, and uniformly stirring for 1.5-2 min;
thirdly, adding the light coarse particle materials according to the components, and uniformly stirring for 50-75 s;
2) manufacturing steel bar, lifting ring and embedded part
Firstly, longitudinal and transverse ribs are made of corrosion-resistant steel with the diameter of 5-12 mm, the distance is less than @200, reinforcing steel bars are arranged on the periphery and corners of a door and window opening, and the reinforcing steel bars are made of corrosion-resistant deformed steel bars with the diameter of 12-14 mm;
secondly, the lifting ring is made of U-shaped corrosion-resistant steel with the diameter of 14-20 mm, and the total length is 1200-1600 mm;
thirdly, the pre-embedded part is made of corrosion-resistant steel plates with the thickness of 10-15 mm, the anchoring ribs are made of corrosion-resistant steel with the diameter of 10-12 mm, and the distance is less than @ 100; the connecting bolts M14-18 are made of corrosion-resistant steel, the length of the working rod is 100-120 mm, and the length of the thread is 60-80 mm;
3) manufacturing energy-saving material plates, spraying adhesive and assembling connecting pieces into parts
Firstly, energy-saving material plate: a density of 20 to 22kg/m3The thickness is 60-80 mm, the width is more than 600mm, and the length is more than 600 mm;
secondly, spraying an adhesive on the surface of the energy-saving material plate, wherein the dosage per square meter is 0.25-0.3 k g/m2；
Assembling JFRP connecting pieces on the energy-saving material plate, wherein the longitudinal and transverse distances are 400mm and 600mm respectively, and the distance from the edges is more than 100 mm;
assembling the JFRP connecting piece on the energy-saving material plate, wherein the anchoring length in a single blade is not less than 30mm, and the thickness of the protective layer is not less than 25 mm;
4) a mold table and a mold are combined, and a release agent is coated;
5) arranging and installing outer-leaf steel bars, and preparing cushion blocks by using cement mortar to ensure that the thickness of a lightweight concrete protective layer of the steel bars is more than or equal to 20 mm;
6) pouring outer leaf lightweight concrete, wherein the amplitude of a vibration exciter of a die table is less than or equal to 1.5mm, the frequency is less than or equal to 16 times/S, and the vibration is carried out for 10-20S;
7) arranging and installing energy-saving material plates and connecting piece parts;
8) after the perforated plate tube core is coated with a release agent, arranging and installing the perforated plate tube core;
9) arranging and installing inner-leaf steel bars, arranging and installing a hanging ring and an embedded part, and preparing a cushion block by using cement mortar to ensure that the thickness of a lightweight concrete protective layer of the steel bars is more than or equal to 20 mm;
10) pouring lightweight concrete for the inner blade, wherein the amplitude of a vibration exciter of the die table is less than or equal to 1.5mm, the frequency is less than or equal to 16 times/S, and the vibration time is 10-20S;
11) naturally curing, controlling the temperature in a steam kiln at 50-65 ℃, curing for 6h, discharging from the kiln, and maintaining to 28D in a moisture-preserving manner;
12) the amount of the decorative putty for scraping the inner wall is 1.2-1.5 k g/m per square meter2(ii) a The dosage of the putty for scraping the outer wall is 1.5-2.0 k g/m per square meter2；
13) Spraying waterproof emulsion paint with the dosage of 1.5-2.0 k g/m per square meter2。
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| KR960001738B1 (en) * | 1990-03-06 | 1996-02-03 | Kim Doo Hwa | Building flooring sound absorbing apparatus |
| CN105367115A (en) * | 2015-10-23 | 2016-03-02 | 潍坊德霖建材科技有限公司 | Ultra-low-density foamed concrete and preparation method |
| CN105735553A (en) * | 2016-05-05 | 2016-07-06 | 东南大学 | Precast concrete sandwich insulation external wall panel connected by W-shaped steel bar core glass fiber reinforced polymer |
| CN106639140A (en) * | 2017-02-21 | 2017-05-10 | 孔祥雨 | High-strength biomass fiber insulation composite lightweight exterior wallboard and manufacture method thereof |
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