CN111805697A - Decorative high-performance wallboard based on vertical mold reverse-beating process and preparation method thereof - Google Patents
Decorative high-performance wallboard based on vertical mold reverse-beating process and preparation method thereof Download PDFInfo
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- CN111805697A CN111805697A CN202010582472.8A CN202010582472A CN111805697A CN 111805697 A CN111805697 A CN 111805697A CN 202010582472 A CN202010582472 A CN 202010582472A CN 111805697 A CN111805697 A CN 111805697A
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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
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
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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
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
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- 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
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
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Abstract
The invention discloses a decorative high-performance wallboard based on a vertical die reverse-beating process, which is characterized by comprising a decorative board and a large-cavity wallboard, wherein the hollow rate of the large-cavity wallboard is more than or equal to 65%, and the decorative high-performance wallboard is prepared by adopting a fiber reinforced cement-based composite material through a grouting extrusion process. The invention also discloses a preparation method of the decorative high-performance wallboard based on the vertical mould reverse beating process. The decorative plate of the decorative high-performance wallboard is quickly fixed on the side surface of the die through electromagnetic force, so that the problem of quickly fixing the decorative plate when a vertical die adopts a reverse beating process is solved; the problems of slippage, uneven splicing, leakage of slurry and the like of the decorative plate during grouting and extrusion molding of the fiber reinforced cement-based composite material are effectively solved, and meanwhile, the bonding strength of the decorative plate and the large-cavity wallboard is effectively improved by adopting a grouting and extrusion process for the large-cavity wallboard.
Description
Technical Field
The invention relates to the field of building materials, in particular to a decorative high-performance wallboard based on a vertical die reverse-beating process and a preparation method thereof.
Background
Along with the continuous improvement of the living standard of people, the requirements on the performance and the decorative effect of buildings are higher and higher. More and more high-performance cement-based materials appear in the field of building materials, but most of the high-performance cement-based materials still adopt the traditional cast-in-place process, the advantages of the high-performance cement-based materials cannot be fully exerted, various quality problems of honeycombs, pitted surfaces and the like still exist, and the compactness, the mechanical property and the long-term durability of the cement-based materials are influenced. And cast in situ concrete wallboard, prefabricated wallboard etc. all exist from great, paste insecure, uncompacted problem with the decorative board, later stage decorative board can have the phenomenon that hollowing, face brick peel off, influence pleasing to the eye, increase later stage cost of maintenance, bring the potential safety hazard. The problem that cement concrete materials leak out and drip in the existing preparation process of the decoration integrated composite wallboard is solved, the decorative plate is easy to slide and is not neatly spliced, and the overall attractiveness of the wallboard is seriously affected.
Disclosure of Invention
The invention mainly overcomes the defects in the prior art, and provides a decorative high-performance wallboard based on a vertical die reverse-beating process, it is characterized in that the decorative high-performance wallboard consists of a decorative board and a large-cavity wallboard, wherein the large-cavity wallboard is formed by adopting fiber reinforced cement-based composite materials through grouting extrusion molding, the decorative board is fixed through electromagnetic force between an electromagnet and a metal sheet, and the effect of reverse decoration is formed during grouting extrusion, the decorative high-performance wallboard prepared by the method has high strength, compact structure, good durability and self-provided decorative effect, successfully solves the problems of slippage, uneven splicing and the like of decorative boards in a reverse-beating process of large-cavity wallboards, meanwhile, the bonding strength, the wallboard safety and the durability of the decorative plate and the large-cavity wallboard are effectively improved, and the problems that the decorative plate is easy to fall off, the wallboard is heavy and the durability is poor are solved.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the decorative high-performance wallboard based on the vertical die reverse-beating process is characterized by comprising a decorative board and a large-cavity wallboard, wherein the hollow rate of the large-cavity wallboard is not less than 65%, and the decorative high-performance wallboard is prepared by adopting a fiber reinforced cement-based composite material through a grouting extrusion process.
Further, the fiber reinforced cement-based composite material comprises the following components in percentage by mass: p & O42.5 cement, fly ash, S95 mineral powder, silica fume, quartz sand, fiber and water: high-efficiency water reducing agent 1: 1 (1-2): 0.1-0.3): 0.05-0.10): 0.2-0.5): 0.03-0.06): 0.4-0.8): (0.01-0.03).
Furthermore, the compressive strength of the fiber reinforced cement-based composite material is more than or equal to 100MPa, the tensile strength is more than or equal to 6.8MPa, and the flexural strength is more than or equal to 22 MPa.
Furthermore, the decorative plate is one of a ceramic plate, a rock veneer, a wood veneer, a plastic veneer, a metal veneer and the like.
Furthermore, the thickness of the decorative plate is 1.5-8.0 mm.
Furthermore, the decorative high-performance wallboard based on the vertical mold reverse-beating process has the advantages that the decorative plate is positioned on the side face of the vertical mold forming mold in an electromagnetic force positioning mode.
Further, the preparation method of the decorative high-performance wallboard based on the vertical mold reverse-beating process is characterized by comprising the following steps of:
1) fixing the decorative plate: in the process of assembling the mold, the electromagnet is arranged on the outer side of the mold for fixing the decorative plate, the decorative plate is assembled on the inner surface of the mold, the metal sheet is attached to the inner side of the decorative plate, and after the decorative plate is electrified, the decorative plate is fixed through the electromagnetic force between the electromagnet on the outer side and the metal sheet on the inner side.
2) Assembling a mold: assembling the bottom die, the upper bottom die, the lower bottom die, the left side die, the right side die, the front side die, the rear side die and the core die.
3) Preparing a fiber reinforced cement-based composite material: the composition comprises the following components in percentage by mass: p & O42.5 cement, fly ash, S95 mineral powder, silica fume, quartz sand, fiber and water: high-efficiency water reducing agent 1: 1 (1-2): 0.1-0.3): 0.05-0.10): 0.2-0.5): 0.03-0.06): 0.4-0.8): (0.01-0.03), preparing materials and uniformly stirring.
4) Preparing a decorative high-performance wallboard: and (3) grouting the fiber reinforced cement-based composite material into a mold through a grouting extrusion process.
5) Removing the mold: and after hardening, dismantling the upper bottom die, the lower bottom die, the left side die, the right side die, the front side die, the rear side die and the core die to obtain the decorative high-performance wallboard.
Further, the grouting pressure in the grouting and extruding process of the fiber reinforced cement-based composite material is 2-5 MPa.
Has the advantages that:
the invention provides a decorative high-performance wallboard based on a vertical die reverse-beating process, which is characterized by comprising a decorative plate and a large-cavity wallboard, wherein the large-cavity wallboard is made of a fiber reinforced cement-based composite material and is formed by grouting and extrusion, the decorative plate is fixed by electromagnetic force between an electromagnet and a metal sheet, and a reverse-beating decorative effect is formed during grouting and extrusion.
Drawings
FIG. 1 is an effect diagram of a decorative high performance wallboard based on a vertical mold reverse-beating process of the present invention;
wherein, 1-1 of large cavity wall board; 1-2 decorative boards; 1-3 inner walls of the large-cavity wall boards; 1-4 large cavity wall board outer wall; 1-5 large cavity wall panel ribbed structure; 1-6 large cavity wall board large cavity.
FIG. 2 is a schematic view of a method of securing a trim panel;
wherein, 2-1 electromagnet; 2-2 metal sheets; 2-3, side molding; 1-3 large cavity wall board inner wall.
It should be noted that fig. 1-2 are only schematic diagrams for explaining the present invention, and the shape, appearance and size of the housing are not limited thereto.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
a decorative high-performance wallboard based on a vertical mold reverse-beating process and a preparation method thereof are as follows:
(1) fixing the decorative plate: the decorative board adopt the ceramic plate concatenation of the same size to form, at the mould assembling process, at the mould outside installation electro-magnet of fixed decorative board, the ceramic plate is assembled to the inlayer to paste the stainless steel iron sheet in the ceramic plate, every ceramic plate of assembling, the electro-magnet circular telegram that corresponds the position in this position mould outside realizes that the ceramic plate position passes through the electro-magnet and the electromagnetic force of sheetmetal is quick fixed. According to the method, the assembly of the decorative plate of the whole die is completed.
(2) Assembling a mold: assembling a bottom die, an upper bottom die, a lower bottom die, a left side die, a right side die, a front side die, a rear side die and a core die;
(3) preparing a fiber reinforced cement-based composite material: the fiber reinforced cement-based composite material for the large-cavity wallboard comprises the following components in percentage by mass: p & O42.5 cement, flyash, S95 mineral powder, silica fume, quartz sand, fiber, water, high efficiency water reducing agent, etc. the said materials are mixed through stirring to prepare the composite material.
(4) And (3) forming the decorative high-performance wallboard: the fiber reinforced cement-based composite material is injected into a mould with a decorative plate by adopting a grouting extrusion process, and the grouting pressure is 3-4 MPa.
(5) Removing the mold: and after hardening, dismantling the upper bottom die, the lower bottom die, the left side die, the right side die, the front side die, the rear side die and the core die to obtain the decorative high-performance wallboard.
The decorative high performance wallboard prepared by the example 1 is ceramic board, and the density of the surface of the decorative high performance wallboard is 73m2The compressive strength of the fiber reinforced cement-based composite material is 103MPa, the tensile strength is 6.9MPa, the flexural strength is 23MPa, and the hollow rate of the large-cavity wall board is 68 percent.
Comparative example 1:
a wallboard with a decoration function and a preparation method thereof are as follows:
(1) assembling a mold: assembling a bottom die, an upper bottom die, a lower bottom die, a left side die, a right side die, a front side die, a rear side die and a core die;
(2) the C30 ordinary silicon cement concrete is prepared from the following components in percentage by mass: p, O42.5, fly ash, river sand, crushed egg stone, water and water reducing agent which are 1: 0.3: 1.2: 2: 0.4: 0.02, and the materials are uniformly stirred according to the mass ratio for later use.
(4) C30 ordinary silica cement concrete is poured, and the thickness is 15 cm.
(5) Removing the mold: and (5) after hardening, removing the template to obtain the wallboard.
(6) And pasting ceramic plates with the same size on the wall plate to obtain the decorative wall plate.
The decorative wallboard prepared by comparative example 1, the decorative board was a ceramic board,the density of the surface of the decorative wallboard is 360m2/kg, wherein the compressive strength of the decorative wallboard is 36 MPa.
As can be seen by comparing comparative example 1 with example 1: the density of the decorative high-performance wallboard surface is only 73m2The compression strength of the decorative layer is 36MPa, which is far lower than that of a decorative high-performance wallboard, and the decorative layer adopts a post-pasting process, so that the phenomena of error, infirm bonding, falling off of the decorative plate and the like are easily caused.
Example 2:
a preparation method of a decorative high-performance wallboard based on a vertical mold reverse beating process comprises the following steps:
(1) fixing the decorative plate: the decorative board adopt the concatenation of the rock decorative board of the same size to form, at the mould equipment in-process, install the electro-magnet in the mould outside specific position of fixed decorative board, the rock decorative board is assembled to the inboard to paste the aluminum sheet in the rock decorative board, every rock decorative board of assembling, the electro-magnet circular telegram that corresponds the position outside this position mould, the realization rock decorative board position is fixed through the electromagnetic force between electro-magnet and aluminum sheet. According to the method, the splicing of the decorative plate of the whole die is completed.
(2) Assembling a mold: assembling a bottom die, an upper bottom die, a lower bottom die, a left side die, a right side die, a front side die, a rear side die and a core die;
(3) the high-performance fiber reinforced cement-based composite material is prepared from the following components in percentage by mass: p & O42.5 cement, flyash, S95 mineral powder, silica fume, quartz sand, fiber, water, high efficiency water reducing agent, etc. the said components are mixed and stirred to prepare the high performance fiber reinforced cement-base composite material.
(4) And (3) forming the decorative high-performance wallboard: the fiber reinforced cement-based composite material is molded by adopting a grouting process, and is grouted into a mold with a decorative plate, wherein the grouting pressure is 2-3 MPa.
(5) Removing the mold: and after hardening, dismantling the upper bottom die, the lower bottom die, the left side die, the right side die, the front side die, the rear side die and the core die to obtain the decorative high-performance wallboard.
By way of example2, the decorative plate is a rock veneer, and the surface density of the decorative high-performance wallboard is 68m2The compressive strength of the fiber reinforced cement-based composite material is 105MPa, the tensile strength is 6.9MPa, the flexural strength is 26MPa, and the hollow rate of the large-cavity wallboard is 73%.
Comparative example 2:
a reverse-beating decorative wallboard and a preparation method thereof are as follows:
(1) fixing the decorative plate: the decorative plate is formed by splicing the rock veneers with the same size, the rock veneers are fixed by adopting a method of propping the rock veneers at the inner sides of the templates in the assembling process of the die, and the splicing of the decorative plate of the whole die is completed according to the method.
(2) Assembling a mold: assembling a bottom die, an upper bottom die, a lower bottom die, a left side die, a right side die, a front side die, a rear side die and a core die;
(3) the high-performance fiber reinforced cement-based composite material is prepared from the following components in percentage by mass: p & O42.5 cement, flyash, S95 mineral powder, silica fume, quartz sand, fiber, water, high-efficiency water reducing agent, 1: 1.4: 0.3: 0.10: 0.5: 0.06: 0.8: 0.01, and the components are uniformly stirred according to the formula.
(5) And (3) forming the fiber reinforced cement-based composite material by adopting a grouting process, grouting the formed fiber reinforced cement-based composite material into a mould with a rock veneer, wherein the grouting pressure is 2-3MPa, and the thickness is 10 cm.
(5) Removing the mold: and (4) after hardening, removing the template to obtain the reverse-beating decorative wallboard.
The reverse-beating decorative wallboard prepared by the comparative example 2 has the density of 241m2The compressive strength of the decorative wallboard is 96.5MPa, more than half of the decorative rock veneer of the decorative layer slips, slurry of the high-performance fiber reinforced cement-based composite material has serious leakage, overflow and leakage, and the decorative layer effect is extremely poor.
As can be seen by comparing comparative example 2 with example 2: the decorative wallboard adopting the reverse beating process is the same, and the density of the surface of the decorative high-performance wallboard in example 2 is only 68m2Kg, while the areal density of the wallboard of comparative example 2 is 241m2Kg, since both example 2 and comparative example 2 use notesThe compressive strength of thick liquid extruded mode, wallboard is all higher, but because comparative example 2 does not adopt the fixed mode of electro-magnet, the decorative cover layer easily produces and slides, and the slurry takes place to run the phenomenon of leakage, influences decorative effect.
Comparative example 3:
a reverse-beating decorative wallboard and a preparation method thereof are as follows:
(1) fixing the decorative plate: the decorative board adopt the concatenation of the rock decorative board of the same size to form, at the mould equipment in-process, install the electro-magnet in the mould outside specific position of fixed decorative board, the rock decorative board is assembled to the inboard to paste the aluminum sheet in the rock decorative board, every rock decorative board of assembling, the electro-magnet circular telegram that corresponds the position outside this position mould, the realization rock decorative board position is fixed through the electromagnetic force between electro-magnet and aluminum sheet. According to the method, the splicing of the decorative plate of the whole die is completed.
(2) Assembling a mold: assembling a bottom die, an upper bottom die, a lower bottom die, a left side die, a right side die, a front side die and a rear side die;
(3) the high-performance fiber reinforced cement-based composite material is prepared from the following components in percentage by mass: p & O42.5 cement, flyash, S95 mineral powder, silica fume, quartz sand, fiber, water, high efficiency water reducing agent, etc. the said components are mixed and stirred to prepare the high performance fiber reinforced cement-base composite material.
(4) And pouring the fiber reinforced cement-based composite material, wherein the thickness is 10 cm.
(5) Removing the mold: and (4) after hardening, removing the template to obtain the reverse-beating decorative wallboard.
The reverse-beating decorative wallboard prepared by the comparative example 3 has the density of 230m2And/kg, wherein the compressive strength of the decorative wallboard is 74.5MPa, the phenomena of slippage, leakage and dripping of slurry do not occur on the rock veneer of the decorative layer, and the decorative surface layer has good effect.
As can be seen by comparing comparative example 3 with example 2: the wall board is decorated by adopting the reverse beating process fixed by the electromagnet, the decoration effect of the decoration layer is good, but the decoration of the embodiment 2 adopts the slip casting processHigh performance wallboard surface density of only 68m2Kg, while comparative example 3 was not formed by slip casting, the areal density of the wallboard was 230m2The compressive strength is 74.5MPa, which is obviously lower than the mechanical property of the decorative high-performance wallboard in the example 2.
Example 3:
a preparation method of a decorative high-performance wallboard based on a vertical mold reverse beating process comprises the following steps:
(1) fixing the decorative plate: the decorative board adopt the concatenation of the rock decorative board of the same size to form, at the mould equipment in-process, install the electro-magnet in the mould outside specific position of fixed decorative board, the rock decorative board is assembled to the inboard to paste the aluminum sheet in the rock decorative board, every rock decorative board of assembling, the electro-magnet circular telegram that corresponds the position outside this position mould, the realization rock decorative board position is fixed through the electromagnetic force between electro-magnet and aluminum sheet. According to the method, the splicing of the decorative plate of the whole die is completed.
(2) Assembling a mold: assembling a bottom die, an upper bottom die, a lower bottom die, a left side die, a right side die, a front side die, a rear side die and a core die;
(3) preparing a fiber reinforced cement-based composite material: the high-performance fiber reinforced cement-based composite material for the large-cavity wallboard comprises the following components in percentage by mass: p & O42.5 cement, fly ash, S95 mineral powder, silica fume, quartz sand, fiber, water, high-efficiency water reducing agent, 1: 2: 0.1: 0.05: 0.2: 0.03: 0.4: 0.03. The high-performance fiber reinforced cement-based composite material is prepared by uniformly stirring according to the formula.
(4) And (3) forming the decorative high-performance wallboard: the fiber reinforced cement-based composite material is molded by adopting a grouting process, and is grouted into a mold with a decorative plate, wherein the grouting pressure is 2-3 MPa.
(5) Removing the mold: and after hardening, dismantling the upper bottom die, the lower bottom die, the left side die, the right side die, the front side die, the rear side die and the core die to obtain the decorative high-performance wallboard.
The decorative high performance wallboard prepared in example 3 was a rock veneer with a density of 68m2/kg, wherein the fiber reinforced cement-based compositeThe compressive strength of the material is 108MPa, the tensile strength is 7.2MPa, the breaking strength is 30MPa, and the hollow rate of the large-cavity wallboard is 69%.
Comparative example 4:
a preparation method of a decorative wallboard based on a vertical mold reverse beating process comprises the following steps:
(1) fixing the decorative plate: the decorative board adopt the concatenation of the rock decorative board of the same size to form, at the mould equipment in-process, install the electro-magnet in the mould outside specific position of fixed decorative board, the rock decorative board is assembled to the inboard to paste the aluminum sheet in the rock decorative board, every rock decorative board of assembling, the electro-magnet circular telegram that corresponds the position outside this position mould, the realization rock decorative board position is fixed through the electromagnetic force between electro-magnet and aluminum sheet. According to the method, the splicing of the decorative plate of the whole die is completed.
(2) Assembling a mold: assembling a bottom die, an upper bottom die, a lower bottom die, a left side die, a right side die, a front side die, a rear side die and a core die;
(3) preparing a fiber reinforced cement-based composite material: the fiber reinforced cement-based composite material for the large-cavity wallboard comprises the following components in percentage by mass: p & O42.5 cement, fly ash, S95 mineral powder, silica fume, quartz sand, fiber, water, high-efficiency water reducing agent, 0.3: 2: 0.1: 0.05: 0.2: 0.03: 0.4: 0.03. The fiber reinforced cement-based composite material is prepared by uniformly stirring according to the formula.
(4) Forming the decorative wallboard: the fiber reinforced cement-based composite material is molded by adopting a grouting process, and is grouted into a mold with a decorative plate, wherein the grouting pressure is 2-3 MPa.
(5) Removing the mold: and after hardening, dismantling the upper bottom die, the lower bottom die, the left side die, the right side die, the front side die, the rear side die and the core die to obtain the decorative high-performance wallboard.
Decorative wallboard prepared by comparative example 4, the decorative board being a rock veneer, the density of the surface of the decorative wallboard being 68m2The fiber reinforced cement-based composite material has the advantages of compressive strength of 18MPa, tensile strength of 2.2MPa, breaking strength of 3MPa, large-cavity wallboard hollow rate of 69 percent and good decorative effect.
As can be seen by comparing comparative example 4 with example 3: the decorative effect of the decorative layer of the wall board decorated by the reverse beating process is good, but because the dosage of the P.O 42.5 cement in the comparative example 4 is too small, the compressive strength of the fiber reinforced cement-based composite material is 18MPa, the tensile strength is 2.2MPa, and the breaking strength is 3MPa, which are far lower than the mechanical properties of the compressive strength of the fiber reinforced cement-based composite material in the example 3, such as 108MPa, the tensile strength of the fiber reinforced cement-based composite material, 7.2MPa, and the breaking strength of the fiber reinforced cement-based composite material.
Comparative example 5:
a preparation method of a decorative wallboard based on a vertical mold reverse beating process comprises the following steps:
(1) fixing the decorative plate: the decorative board adopt the concatenation of the rock decorative board of the same size to form, at the mould equipment in-process, install the electro-magnet in the mould outside specific position of fixed decorative board, the rock decorative board is assembled to the inboard to paste the aluminum sheet in the rock decorative board, every rock decorative board of assembling, the electro-magnet circular telegram that corresponds the position outside this position mould, the realization rock decorative board position is fixed through the electromagnetic force between electro-magnet and aluminum sheet. According to the method, the splicing of the decorative plate of the whole die is completed.
(2) Assembling a mold: assembling a bottom die, an upper bottom die, a lower bottom die, a left side die, a right side die, a front side die, a rear side die and a core die;
(3) preparing a fiber reinforced cement-based composite material: the fiber reinforced cement-based composite material for the large-cavity wallboard comprises the following components in percentage by mass: p & O42.5 cement, fly ash, S95 mineral powder, silica fume, quartz sand, fiber, water, high-efficiency water reducing agent, 1: 0.2: 0.1: 0.05: 0.2: 0.03: 0.4: 0.03. The fiber reinforced cement-based composite material is prepared by uniformly stirring according to the formula.
(4) Forming the decorative wallboard: the fiber reinforced cement-based composite material is molded by adopting a grouting process, and is grouted into a mold with a decorative plate, wherein the grouting pressure is 2-3 MPa.
(5) Removing the mold: and after hardening, dismantling the upper bottom die, the lower bottom die, the left side die, the right side die, the front side die, the rear side die and the core die to obtain the decorative high-performance wallboard.
Decorative wall prepared by comparative example 5The board and the decorative board are rock veneers, and the density of the surface of the decorative wallboard is 68m2The fiber reinforced cement-based composite material has the compression strength of 98MPa, the tensile strength of 4.2MPa and the breaking strength of 28MPa, the fiber reinforced cement-based composite material used for the wall material is too small in the mixing amount of fly ash, so that the slip casting process is difficult to realize, a large amount of hollows are formed in the formed wall board, the adhesion performance of the decorative layer and the wall board is poor, and the phenomenon of falling and slipping easily occurs.
As can be seen by comparing comparative example 5 with example 3: the same reverse beating process is adopted to decorate the wallboard, but the use amount of the fly ash in the comparative example 5 is too small, the mechanical property of the fiber reinforced cement-based composite material is closer to that of the embodiment 3, but the slurry rheological property of the fiber reinforced cement-based composite material is poor, the slip casting process is difficult to realize, a large amount of hollows are formed on the formed wallboard, the adhesion property of the decoration layer and the wallboard is poor, and the phenomenon of falling and slipping easily occurs.
Compared with a control group and the detection items and results of the decorative high-performance wallboard based on the vertical-die reverse-beating process in the embodiment, the invention provides the decorative high-performance wallboard based on the vertical-die reverse-beating process, which is characterized in that the decorative high-performance wallboard consists of a decorative plate and a large-cavity wallboard, wherein the large-cavity wallboard is formed by adopting a fiber reinforced cement-based composite material through grouting extrusion molding, the decorative plate is fixed through electromagnetic force between an electromagnet and a metal sheet, and a reverse-beating decorative effect is formed during grouting extrusion, the decorative high-performance wallboard prepared by the method has high strength, compact structure, good durability and self-provided decorative effect, successfully solves the problems of slippage, uneven splicing and the like of the decorative plate in the large-cavity wallboard reverse-beating process, effectively improves the bonding strength, the wallboard safety and the durability of the decorative plate and the large-cavity wallboard, and solves the problem that the decorative plate is easy to fall, the wall board has the problems of heavy weight, poor durability and the like. Various components in this scheme of adoption, synergy between all kinds of components for the mechanical properties of wallboard, decorative properties are extremely outstanding, and utilize the fixed mode of electro-magnet to successfully solve big cavity wallboard and have beaten the technology decorative board and slide, splice scheduling problem unevenly reversely, have practiced thrift manufacturing cost greatly, have promoted product quality, compare prior art, have apparent progress.
Although the present invention has been described with reference to the above embodiments, it should be understood that the present invention is not limited to the above embodiments, and those skilled in the art can make various changes and modifications without departing from the scope of the present invention.
Claims (8)
1. The decorative high-performance wallboard based on the vertical die reverse-beating process is characterized by comprising a decorative board and a large-cavity wallboard, wherein the hollow rate of the large-cavity wallboard is not less than 65%, and the decorative high-performance wallboard is prepared by adopting a fiber reinforced cement-based composite material through a grouting extrusion process.
2. The decorative high-performance wallboard based on the vertical die reverse beating process as claimed in claim 1, wherein said fiber reinforced cement-based composite material comprises the following components by mass ratio: PO42.5 cement, fly ash, S95 mineral powder, silica fume, quartz sand, fiber and water: high-efficiency water reducing agent 1: 1 (1-2): 0.1-0.3): 0.05-0.10): 0.2-0.5): 0.03-0.06): 0.4-0.8): (0.01-0.03).
3. The decorative high-performance wallboard based on the vertical die reverse beating process as claimed in claim 2, wherein the compressive strength of the fiber reinforced cement-based composite material is not less than 100MPa, the tensile strength is not less than 6.8MPa, and the flexural strength is not less than 22 MPa.
4. The decorative high-performance wallboard based on the vertical die reverse-beating process according to claim 1, wherein the decorative board is one of a ceramic board, a rock veneer, a wood veneer, a plastic veneer, a metal veneer and the like.
5. The decorative high-performance wallboard based on the vertical die reverse beating process as claimed in claim 1, wherein the thickness of the decorative plate is 1.5-8.0 mm.
6. The decorative high-performance wallboard based on the vertical die reverse-beating process as claimed in claim 1, wherein the decorative plate is positioned on the side surface of the die in an electromagnetic force positioning mode.
7. The decorative high-performance wallboard based on the vertical die reverse beating process according to any one of claims 1 to 6, wherein the preparation method comprises the following steps:
1) fixing the decorative plate: in the process of assembling the mold, the electromagnet is arranged on the outer side of the mold for fixing the decorative plate, the decorative plate is assembled on the inner surface of the mold, the metal sheet is attached to the inner side of the decorative plate, and after the decorative plate is electrified, the decorative plate is fixed through the electromagnetic force between the electromagnet on the outer side and the metal sheet on the inner side.
2) Assembling a mold: assembling the bottom die, the upper bottom die, the lower bottom die, the left side die, the right side die, the front side die, the rear side die and the core die.
3) Preparing a fiber reinforced cement-based composite material: the composition comprises the following components in percentage by mass: p & O42.5 cement, fly ash, S95 mineral powder, silica fume, quartz sand, fiber and water: high-efficiency water reducing agent 1: 1 (1-2): 0.1-0.3): 0.05-0.10): 0.2-0.5): 0.03-0.06): 0.4-0.8): (0.01-0.03), preparing materials and uniformly stirring.
4) Preparing a decorative high-performance wallboard: and (3) grouting the fiber reinforced cement-based composite material into the mold through a grouting extrusion process.
5) Removing the mold: and after hardening, dismantling the upper bottom die, the lower bottom die, the left side die, the right side die, the front side die, the rear side die and the core die to obtain the decorative high-performance wallboard.
8. The method for preparing the decorative high-performance wallboard based on the vertical die reverse beating process as claimed in claim 7, wherein the grouting pressure in the grouting and extruding process of the fiber reinforced cement-based composite material is 2-5 MPa.
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