CN111962760A - Anti-knock and anti-impact composite wallboard - Google Patents
Anti-knock and anti-impact composite wallboard Download PDFInfo
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- CN111962760A CN111962760A CN202010828223.2A CN202010828223A CN111962760A CN 111962760 A CN111962760 A CN 111962760A CN 202010828223 A CN202010828223 A CN 202010828223A CN 111962760 A CN111962760 A CN 111962760A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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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
- C04B28/06—Aluminous cements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin fibres
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00637—Uses not provided for elsewhere in C04B2111/00 as glue or binder for uniting building or structural materials
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides an anti-explosion and anti-impact composite wallboard, which comprises a polypropylene fiber concrete wall body, a bonding layer, a fiber reinforced composite material layer, a foamed aluminum filling body, a C-shaped steel plate, a bolt and a pressure relief hole, wherein the polypropylene fiber concrete wall body is formed in a pouring mode; according to the invention, the C-shaped steel plate is adopted to fix all the components to form a whole, so that the explosion shock wave is resisted, fragments are not easy to generate, secondary damage caused by the fragments is effectively avoided, and the pressure relief holes are formed in the steel plate, so that the damage of the wallboard under the explosion shock load can be effectively reduced. The invention can be used for wallboards of new engineering projects and buildings with explosion-proof requirements.
Description
Technical Field
The invention relates to the field of engineering structure protection, in particular to an anti-explosion and anti-impact composite wallboard.
Background
At present, most of building structures such as houses, office buildings, factory buildings and the like adopt reinforced concrete or other light materials as filling walls. When various accidental explosion events and terrorist explosion events occur, the explosion shock wave bearing material bears most of loads generated by explosion shock waves and plays a crucial role in resisting explosion of building structures. The existing concrete wallboard can be locally damaged or even collapsed under the action of explosive load, while the damage condition of the light material under the action of the explosive load is more serious; conventional concrete structures are generally resistant to blast impact loads by increasing the strength and rigidity of the structure, which results in a wall structure that is stiff under its own weight. In addition, the concrete structure is easy to produce high-speed fragments under the action of the explosion shock wave, and secondary damage can be caused to personnel and property.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an anti-explosion and anti-impact composite wallboard, which solves the problems in the background technology.
The invention provides an anti-explosion and anti-impact composite wallboard, which comprises a polypropylene fiber concrete wall body, a bonding layer, a fiber reinforced composite material layer, a foamed aluminum filling body, a C-shaped steel plate, a bolt and a pressure relief hole, wherein the polypropylene fiber concrete wall body is formed in a pouring mode; the bonding layers are paved on the front side and the rear side of the polypropylene fiber concrete wall, the fiber reinforced composite material layer is paved on the outer surfaces of the bonding layers on the front side and the rear side, the C-shaped steel plate is wrapped on the outer periphery of the polypropylene fiber concrete wall, a cavity is formed between the C-shaped steel plate and the fiber reinforced composite material layer, the foamed aluminum filling body is filled in the cavity, threaded holes are formed in the left side and the right side of the polypropylene fiber concrete wall, through holes are formed in the positions, corresponding to the threaded holes, of the C-shaped steel plate, and the bolts penetrate through the through holes and then extend into the threaded holes to fix the C-shaped steel plate on the polypropylene fiber concrete wall.
Preferably, the thickness of the polypropylene fiber concrete wall body is 50mm-150 mm.
Preferably, the material of the bonding layer is selected from cement-based composite materials, and the thickness of the bonding layer is 5mm-20 mm;
preferably, the fiber reinforced composite material layer is selected to be a bidirectional grid woven by fiber bundles, and the grid size is 50mm multiplied by 50 mm;
preferably, the cement-based composite material is prepared by mixing, by mass, ordinary portland cement: water: quartz sand: fly ash: hydroxypropyl methylcellulose: polycarboxylic acid high-efficiency water reducing agent: mixing calcium aluminate cement in the proportion of 0.92:0.42:0.85:0.40:0.001:0.008:0.08 to obtain a matrix material, adding polyvinyl alcohol fibers with the volume parameter of 1.8% into the matrix material in unit volume, and fully and uniformly stirring to form the cement-based composite material;
preferably, a pressure relief hole is formed in the surface of the C-shaped steel plate;
preferably, glazing the outer surface of the C-shaped steel plate;
preferably, the thickness of the C-shaped steel plate 5 is 5mm-20mm, and the thickness of the cavity is 50mm-150 mm.
The foam aluminum filler of the anti-explosion and anti-impact composite wallboard provided by the invention has the energy absorption characteristic, the two-way grid woven by fiber bundles has high tensile strength, light weight and corrosion resistance, the tensile property of the foam aluminum filler can be enhanced, the cement-based composite material has the characteristics of excellent mechanical property, remarkable ductility characteristic, microcrack, self-healing, erosion resistance and the like, and meanwhile, the composite wallboard has certain bearing capacity and certain anti-explosion and anti-impact capacity due to the advantages of high strength, large rigidity, strong bearing capacity and the like of steel and concrete. According to the invention, the C-shaped steel plate is adopted to fix all the components to form a whole, so that the explosion shock wave is resisted, fragments are not easy to generate, secondary damage caused by the fragments is effectively avoided, and the pressure relief holes are formed in the steel plate, so that the damage of the wallboard under the explosion shock load can be effectively reduced. The invention can be used for wallboards of new engineering projects and buildings with explosion-proof requirements.
Drawings
FIG. 1 is a schematic view of an anti-knock and anti-impact composite wall panel
FIG. 2 is a schematic cross-sectional view of an anti-knock and anti-impact composite wall panel
Wherein, 1 is a polypropylene fiber concrete wall; 2-a tie layer; 3-a fibre-reinforced composite layer; 4-foamed aluminum filler; 5-C type steel plate; 6-bolt; 7-pressure relief hole.
Detailed Description
In order to better explain the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention.
Referring to fig. 1 to 2, the present invention provides an anti-knock and anti-impact composite wall panel, which includes a polypropylene fiber concrete wall 1 formed by pouring, an adhesive layer 2, a fiber reinforced composite material layer 3, a foamed aluminum filler 4, a C-shaped steel plate 5, a bolt 6, and a pressure relief hole 7; the bonding layers 2 are laid on the front side and the rear side of the polypropylene fiber concrete wall 1, the fiber reinforced composite material layer 3 is laid on the outer surfaces of the bonding layers 2 on the front side and the rear side, the C-shaped steel plates 5 are wrapped on the outer periphery of the polypropylene fiber concrete wall 1, a cavity is formed between the C-shaped steel plates 5 and the fiber reinforced composite material layer 3, the foamed aluminum filler 4 is filled in the cavity, threaded holes are formed in the left side and the right side of the polypropylene fiber concrete wall 1, through holes are formed in the C-shaped steel plates 5 at positions corresponding to the threaded holes, and the bolts 6 penetrate through the through holes and then extend into the threaded holes to fix the C-shaped steel plates 5 on the polypropylene fiber concrete wall 1.
Preferably, the thickness of the polypropylene fiber concrete wall 1 is 50mm-150 mm.
Preferably, the material of the bonding layer 2 is selected to be a cement-based composite material, and the thickness of the bonding layer 2 is 5mm-20 mm;
preferably, the fiber reinforced composite material layer 3 is selected as a bidirectional grid woven by fiber bundles, and the size of the grid is 50mm × 50 mm;
preferably, the cement-based composite material is prepared by mixing, by mass, ordinary portland cement: water: quartz sand: fly ash: hydroxypropyl methylcellulose: polycarboxylic acid high-efficiency water reducing agent: mixing calcium aluminate cement in a ratio of 0.92:0.42:0.85:0.40:0.001:0.008:0.08 to obtain a matrix material, adding polyvinyl alcohol fibers with a volume parameter of 1.8% into the matrix material in unit volume, and fully and uniformly stirring to form the cement-based composite material;
preferably, a pressure relief hole is formed on the surface of the C-shaped steel plate 5;
preferably, the outer surface of the C-shaped steel plate 5 is glazed to change the appearance pattern, so that the anti-knock and anti-impact composite wallboard has a certain decorative effect.
Preferably, the thickness of the C-shaped steel plate 5 is 5mm-20mm, and the thickness of the cavity is 50mm-150 mm.
The construction process of the anti-knock and anti-impact composite wallboard comprises the following steps: firstly, a 50-150 mm polypropylene fiber concrete wall is poured, then bonding layers are paved on the front surface and the rear surface of the polypropylene fiber concrete wall, then a fiber reinforced composite material layer is paved on the surface of the bonding layers, then through holes in a C-shaped steel plate are aligned with threaded holes in the polypropylene fiber concrete wall, bolts are inserted into the through holes and then screwed into the threaded holes, so that the C-shaped steel plate is fixed on the polypropylene fiber concrete wall, a cavity is formed between the C-shaped steel plate 5 and the fiber reinforced composite material layer 3, and the foamed aluminum filler 4 is filled in the cavity.
The preparation method of the cement-based composite material comprises the following steps: the cement is prepared from the following components in parts by mass: water: quartz sand: fly ash: hydroxypropyl methylcellulose: polycarboxylic acid high-efficiency water reducing agent: the preparation method comprises the following steps of preparing a base material from calcium aluminate cement in a ratio of 0.92:0.42:0.85:0.40:0.001:0.008:0.08, adding polyvinyl alcohol fibers with a volume parameter of 1.8% into the base material in unit volume, and fully and uniformly stirring to form the cement-based composite material, wherein the preparation method comprises the following specific steps:
1) the quartz sand, the fly ash, 50% of ordinary portland cement and 50% of calcium aluminate cement are mixed for 1.5min in a dry mode until dry materials are fully mixed, and then all water is added for wet mixing for 2min to prepare cement mixed mortar;
2) adding 25% of polycarboxylic acid high-efficiency water reducing agent into the mixture, stirring for 2min until the mixture is in a fluid state, adding 12.5% of ordinary portland cement and 12.5% of calcium aluminate cement, and stirring for 1min until all particles are fully wetted;
3) repeating the step 2 for three times;
4) slowly adding hydroxypropyl methyl cellulose and polyvinyl alcohol fiber along the stirring direction, and stirring for 4min to uniformly disperse the fiber, thereby finally obtaining the mixed mortar.
The polyvinyl alcohol fiber is doped into the cement-based composite material, so that the compressive strength, the breaking strength, the impact toughness and other properties of the material can be effectively improved, and the self strain capacity is improved to achieve the characteristics of cracking but not cracking, breaking but not bursting; meanwhile, the incorporation of the hydroxypropyl methyl fiber and the calcium aluminate cement can improve the adhesion and the high temperature resistance of the cement-based composite material. Effectively prevents the foamed aluminum material from being broken down in the explosion process under the combined action of the cement-based composite material and the fiber reinforced composite material. The cement-based composite material has the advantages of excellent mechanical property, obvious ductility characteristic, micro-crack, self-healing, erosion resistance and the like, and can be used as a bonding material for bonding the cement-based composite material with polypropylene fiber concrete and foamed aluminum. The foamed aluminum material has the advantages of small density, high impact absorption capacity, high temperature resistance, high fireproof performance, corrosion resistance, sound insulation, noise reduction and low heat conductivity, and can be used as an energy-absorbing material for an anti-explosion and anti-impact wallboard. Compared with common concrete, the polypropylene fiber concrete has higher tensile strength, bending resistance, impact strength, elongation and toughness. The invention fully considers the stress performance of each component structure, can meet the bearing capacity requirement of the wallboard structure, and effectively improves the anti-explosion and anti-impact performance of the wallboard structure.
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 modifications apparent to those skilled in the art from the technical solutions disclosed in the present invention and the inventive concept thereof, which are equivalent to the above description, and the various technical solutions of the present invention, should be covered within the scope of the present invention.
Claims (8)
1. An anti-knock and anti-impact composite wallboard comprises a polypropylene fiber concrete wall body (1), a bonding layer (2), a fiber reinforced composite material layer (3), a foamed aluminum filling body (4), a C-shaped steel plate (5) and a bolt (6) which are formed in a pouring mode; the method is characterized in that: the bonding layers (2) are laid on the front side and the rear side of the polypropylene fiber concrete wall body (1), the fiber reinforced composite material layer (3) is laid on the outer surfaces of the bonding layers (2) at the front side and the rear side, the C-shaped steel plate (5) is wrapped on the outer periphery of the polypropylene fiber concrete wall body (1), a cavity is formed between the C-shaped steel plate (5) and the fiber reinforced composite material layer 3, the foamed aluminum filler (4) is filled in the cavity, the left side and the right side of the polypropylene fiber concrete wall body (1) are provided with threaded holes, a through hole is formed on the C-shaped steel plate (5) at the position corresponding to the threaded hole, the bolts (6) extend into the threaded holes after penetrating through the through holes so as to fix the C-shaped steel plate (5) on the polypropylene fiber concrete wall body (1).
2. The blast-resistant impact-resistant composite wallboard of claim 2, wherein: the thickness of the polypropylene fiber concrete wall (1) is 50mm-150 mm.
3. The blast-resistant impact-resistant composite wallboard of claim 1, wherein: the material of the bonding layer (2) is selected from a cement-based composite material, and the thickness of the bonding layer (2) is 5mm-20 mm.
4. The blast-resistant impact-resistant composite wallboard of claim 1, wherein: the fiber reinforced composite material layer (3) is selected from a bidirectional grid woven by fiber bundles, and the size of the grid is 50mm multiplied by 50 mm.
5. The blast-resistant impact-resistant composite wallboard of claim 1, wherein: the cement-based composite material is prepared from the following components in parts by mass: water: quartz sand: fly ash: hydroxypropyl methylcellulose: polycarboxylic acid high-efficiency water reducing agent: and (2) mixing the calcium aluminate cement with a matrix material according to the proportion of 0.92:0.42:0.85:0.40:0.001:0.008:0.08, adding polyvinyl alcohol fibers with the volume parameter of 1.8% into the matrix material in unit volume, and fully and uniformly stirring to form the cement-based composite material.
6. The blast-resistant impact-resistant composite wallboard of claim 1, wherein: and a pressure relief hole (7) is formed in the surface of the C-shaped steel plate (5).
7. The blast-resistant impact-resistant composite wallboard of claim 1, wherein: and glazing the outer surface of the C-shaped steel plate (5).
8. The blast-resistant impact-resistant composite wallboard of claim 1, wherein: the thickness of the C-shaped steel plate (5) is 5mm-20mm, and the thickness of the cavity is 50mm-150 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010828223.2A CN111962760A (en) | 2020-08-17 | 2020-08-17 | Anti-knock and anti-impact composite wallboard |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010828223.2A CN111962760A (en) | 2020-08-17 | 2020-08-17 | Anti-knock and anti-impact composite wallboard |
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| CN111962760A true CN111962760A (en) | 2020-11-20 |
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| CN202010828223.2A Pending CN111962760A (en) | 2020-08-17 | 2020-08-17 | Anti-knock and anti-impact composite wallboard |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878585A (en) * | 2021-01-27 | 2021-06-01 | 中北大学 | High-explosion-resistance high-strength foamed aluminum-steel tube concrete composite column and preparation method thereof |
| CN114086683A (en) * | 2021-11-24 | 2022-02-25 | 天津大学 | Antiknock protective structure based on shock wave steering energy dissipation principle |
| CN114347591A (en) * | 2022-01-28 | 2022-04-15 | 河北工业大学 | UHPC/foamed aluminum anti-explosion composite structure and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878585A (en) * | 2021-01-27 | 2021-06-01 | 中北大学 | High-explosion-resistance high-strength foamed aluminum-steel tube concrete composite column and preparation method thereof |
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| CN114347591A (en) * | 2022-01-28 | 2022-04-15 | 河北工业大学 | UHPC/foamed aluminum anti-explosion composite structure and preparation method thereof |
| CN114347591B (en) * | 2022-01-28 | 2024-01-19 | 河北工业大学 | UHPC/foamed aluminum antiknock composite structure and preparation method thereof |
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