CN115849790B - Preparation method of bicolor artificial artistic stone plate and bicolor artificial artistic stone plate - Google Patents
Preparation method of bicolor artificial artistic stone plate and bicolor artificial artistic stone plate Download PDFInfo
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- CN115849790B CN115849790B CN202211270740.8A CN202211270740A CN115849790B CN 115849790 B CN115849790 B CN 115849790B CN 202211270740 A CN202211270740 A CN 202211270740A CN 115849790 B CN115849790 B CN 115849790B
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- 239000004575 stone Substances 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title abstract description 16
- 239000002002 slurry Substances 0.000 claims abstract description 174
- 239000008187 granular material Substances 0.000 claims abstract description 99
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 239000000049 pigment Substances 0.000 claims abstract description 56
- 239000004568 cement Substances 0.000 claims abstract description 48
- 238000002156 mixing Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims description 37
- 229920005989 resin Polymers 0.000 claims description 37
- 230000002745 absorbent Effects 0.000 claims description 34
- 239000002250 absorbent Substances 0.000 claims description 34
- 239000000843 powder Substances 0.000 claims description 33
- 239000003638 chemical reducing agent Substances 0.000 claims description 19
- 239000008188 pellet Substances 0.000 claims description 19
- 239000002313 adhesive film Substances 0.000 claims description 13
- 239000011449 brick Substances 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 10
- 239000011707 mineral Substances 0.000 claims description 10
- 239000004570 mortar (masonry) Substances 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- 239000002699 waste material Substances 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 8
- 239000010881 fly ash Substances 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical group [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 4
- 239000004111 Potassium silicate Substances 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical group [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 claims description 3
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims description 3
- 229910052912 lithium silicate Inorganic materials 0.000 claims description 3
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 3
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 239000012190 activator Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 44
- 239000003086 colorant Substances 0.000 abstract description 14
- 239000002969 artificial stone Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000004513 sizing Methods 0.000 description 8
- 238000009792 diffusion process Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000005034 decoration Methods 0.000 description 4
- 239000011268 mixed slurry Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 239000006004 Quartz sand Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229920002785 Croscarmellose sodium Polymers 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- -1 sandstone Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a preparation method of a bicolor artificial artistic stone plate and the bicolor artificial artistic stone plate, wherein the method comprises the following steps: preparing first slurry granules and forming a viscous water-blocking film on the surface of the first slurry granules, wherein the first slurry granules comprise first regenerated fine aggregate, first cement, first pigment and water, and the color of the first regenerated fine aggregate is matched with that of the first pigment; preparing second slurry granules, and forming a viscous water-blocking film on the surface of the second slurry granules, wherein the second slurry granules comprise second regenerated fine aggregate, second cement, second pigment and water, and the color of the second regenerated fine aggregate is matched with that of the second pigment; and uniformly mixing the first slurry granules and the second slurry granules according to a preset proportion to prepare the plate. According to the invention, the first slurry particles and the second slurry particles are prepared by different regenerated fine aggregates and pigments, and the first slurry particles and the second slurry particles are mixed according to a preset proportion to prepare the plate, so that the problem of blurred and unclear grain boundary contours of different colors is remarkably solved.
Description
Technical Field
The invention relates to the field of artificial stone, in particular to a preparation method of a bicolor artificial artistic stone plate and the bicolor artificial artistic stone plate.
Background
Natural stone materials such as granite, marble, limestone, sandstone, slate and the like are widely used as high-grade building decoration materials for indoor and outdoor decoration design, curtain wall decoration and public facility construction. However, natural stone is expensive, and mining may damage the environment, and cement-based artificial stone has emerged.
At present, cement-based artificial artistic stones are widely applied to municipal engineering and public facility decoration construction. The existing cement-based bicolor artificial stone is mainly prepared by taking natural quartz sand or sentry sand as aggregate, respectively preparing two slurries with different expected colors by cement, pigment and water, granulating, fully mixing, pressing, forming and polishing.
When the cement-based artificial artistic stone is used for preparing materials in actual production, in order to ensure proper workability of mixed slurry, the slurry is ensured to have certain flow and ductility during material distribution and pressing so as to fill the whole die cavity, the problem that partial under-pressure is caused by uneven thickness so as to cause uneven strength is avoided, the slurry is easy to break and insufficient during later polishing and grinding, and the water amount used during actual preparation is more than the required amount of a material curing reaction theory. Meanwhile, since the gelation and curing reaction is a relatively slow and long process, the mixing water in the initial stage after the materials are mixed does not completely participate in the hydration reaction immediately, and most of the mixing water is in a free state. The moisture in the free state at early stage is a carrier of pigment particles, and is easy to permeate and diffuse with the pigment particles. The formed double-color plate is characterized in that after the multi-color plate is shaped and polished in the later stage, grain boundaries with different colors are mutually penetrated and overlapped, the contour of the grains is blurred and unclear, the grains are not independent, and the characteristics are unclear. On the other hand, when the mixed slurry is circulated and operated in the production process, if the route is longer or the ambient temperature is too high (summer), the surface layer granules exposed in the air for a long time are dehydrated and dried, so that the substrate is easy to have local dry flowers and pits after the subsequent pressing polishing and grinding.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a novel preparation method of the bicolor artificial artistic stone slab and the bicolor artificial artistic stone slab aiming at the problems of interpenetration, overlapping and blurred texture boundaries of different colors in the bicolor artificial artistic stone slab.
The technical scheme for solving the technical problems is that a preparation method of a bicolor artificial artistic stone plate is provided, and the method comprises the following steps:
preparing a first slurry granule, wherein the first slurry granule comprises a first regenerated fine aggregate, first cement, a first pigment and water, the first regenerated fine aggregate is processed by gray building waste, the first cement is gray cement, and the first pigment is iron black or carbon black;
spraying the super absorbent resin on the first slurry granules in a stirring state to enable the super absorbent resin to be uniformly adhered to the surfaces of the first slurry granules, and absorbing the moisture on the surfaces of the first slurry granules by the super absorbent resin to form a viscous water-blocking adhesive film;
preparing second slurry granules, wherein the second slurry granules comprise second regenerated fine aggregate, second cement second pigment and water, the second regenerated fine aggregate is processed by red building waste, and the second cement is white cement;
spraying the super absorbent resin on the second slurry granules in a stirring state to enable the super absorbent resin to be uniformly adhered to the surfaces of the second slurry granules, and absorbing the moisture on the surfaces of the second slurry granules by the super absorbent resin to form a viscous water-blocking adhesive film;
and uniformly mixing the first slurry granules and the second slurry granules with the surfaces respectively provided with the viscous water blocking films according to a preset proportion to prepare the plate.
As a further improvement of the present invention, the preparing of the first slurry pellet includes:
the following raw materials are uniformly mixed to form a first slurry: the cement comprises first recycled fine aggregate, recycled mortar powder, first cement, fly ash, a high-efficiency water reducing agent, a first pigment and water;
the first slurry is tinted with a first pigment such that the overall color of the first slurry is consistent with the first recycled fine aggregate, and the tinted first slurry is prepared to form first slurry pellets.
As a further improvement of the present invention, the preparing the toned first slurry to form a first slurry pellet includes:
and (3) passing the first slurry which is subjected to color mixing and is in a semi-dry and wet viscous state through a mesh screen with a preset pore diameter to obtain first slurry granules.
As a further improvement of the present invention, the mass parts of the components forming the first slurry are: 60-75 parts of first recycled fine aggregate, 5-15 parts of recycled mortar powder, 8-18 parts of first cement, 1-2 parts of fly ash, 0.2-0.6 part of high-efficiency water reducer, 0.18-0.32 part of first pigment and 1.5-5.0 parts of water; the sprayed super absorbent resin accounts for 0.00001-0.00006 parts of the weight of the first slurry.
As a further improvement of the present invention, the second pigment is iron oxide red; the preparing of the second slurry pellet comprises:
uniformly mixing the following raw materials to form second slurry: the second regenerated fine aggregate, regenerated red brick powder, second cement, mineral powder, an exciting agent, a high-efficiency water reducing agent, a second pigment and water;
the second slurry is tinted with a second pigment such that the overall color of the second slurry is consistent with the second recycled fine aggregate, and the tinted second slurry is prepared to form second slurry pellets.
As a further improvement of the present invention, the preparing the toned second slurry to form second slurry pellets includes:
and (3) passing the second slurry which is subjected to color mixing and is in a semi-dry and wet viscous state through a mesh screen with a preset pore diameter to obtain second slurry granules.
As a further improvement of the present invention, the mass parts of the components forming the second slurry are: 60-75 parts of second regenerated fine aggregate, 5-15 parts of regenerated red brick powder, 8-18 parts of second cement, 1-2 parts of mineral powder, 0.3-0.5 part of excitant, 0.2-0.6 part of high-efficiency water reducer, 0.18-0.32 part of second body pigment, 1.5-5.0 parts of water, and 0.00001-0.00006 part of sprayed super absorbent resin accounting for the weight part ratio of the second slurry.
As a further improvement of the invention, the mineral powder is white or off-white slag powder, and the excitant is formed by mixing one or more of lithium silicate, sodium silicate and potassium silicate.
As a further improvement of the present invention, the preparation of the board after uniformly mixing the first slurry granules and the second slurry granules, which have the adhesive water-blocking films on the surfaces respectively, according to the preset proportion comprises:
the first slurry granules and the second slurry granules with the surfaces respectively provided with the viscous water blocking films are crosswise poured into the same container and uniformly mixed to obtain mixed granules;
transferring the mixed granules into a forming die, and carrying out die assembly, vacuumizing, vibration and pressing on the forming die to form a blank;
and (3) curing the blank to prepare a plate blank, and polishing and grinding the plate blank to obtain the bicolor artificial artistic stone plate.
The invention also provides a bicolor artificial artistic stone plate, which is prepared by the preparation method of the bicolor artificial artistic stone plate.
The invention has the following beneficial effects: the first slurry granules and the second slurry granules are prepared by different regenerated fine aggregates and pigments, the surfaces of the first slurry granules and the second slurry granules are respectively sprayed with the super absorbent resin, and then the first slurry granules and the second slurry granules are mixed according to a preset proportion to prepare the plate, so that the penetration and diffusion of water carrying pigment particles with free surfaces on the respective granules can be remarkably reduced, and the problem of blurred and unclear grain boundary contours of different colors can be solved.
Drawings
FIG. 1 is a schematic flow chart of a method for preparing a bicolor artificial artistic stone slab according to an embodiment of the invention;
FIG. 2 is a schematic flow chart of preparing first slurry particles in the preparation method of the double-color artificial artistic stone slab provided by the embodiment of the invention;
fig. 3 is a schematic flow chart of preparing second slurry particles in the preparation method of the double-color artificial artistic stone slab provided by the embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Fig. 1 is a schematic flow chart of a method for preparing a double-color artificial artistic stone slab according to an embodiment of the present invention, and the method can be applied to preparing double-color decorative boards for municipal engineering and public facilities. The method of the present embodiment includes the steps of:
step S1: preparing a first slurry pellet comprising a first recycled fine aggregate, a first cement, a first pigment, and water, wherein the color of the first recycled fine aggregate matches the color of the first pigment.
The surface of the first slurry particles is sticky, the particle size of the first slurry particles is matched with the size of the color point in the bicolor artificial artistic stone plate, and the particle size of the first slurry particles can be specifically adjusted according to the application scene of the bicolor artificial artistic stone plate and the like.
The colors of the first recycled fine aggregate, the first cement and the first pigment are matched with one of the colors of the two-color artificial artistic stone slab, for example, when the two-color artificial artistic stone slab is black and red, the colors of the first recycled fine aggregate, the first cement and the first pigment can be gray-black. Meanwhile, the performance of the first recycled fine aggregate meets the quality requirements of class I and class II of the recycled fine aggregate specified in GB/T25176-2010.
Step S2: spraying the super absorbent resin on the first slurry granules in a stirring state, so that the super absorbent resin is uniformly adhered to the surfaces of the first slurry granules, and the super absorbent resin absorbs the moisture on the surfaces of the first slurry granules to form a viscous water-blocking adhesive film.
Specifically, the sprayed super absorbent resin is in a powder form, for example, the super absorbent resin can be high-substitution-degree crosslinked carboxymethyl cellulose containing a strong hydrophilic group, and the weight part ratio of the super absorbent resin to the first slurry granule is 0.00001-0.00006 part. By spraying the super absorbent resin on the surface of the first slurry granule, the super absorbent resin can absorb the surplus free water in the surface layer of the first slurry granule and form a viscous water-blocking adhesive film on the surface of the first slurry granule. And the high water-absorbing resin accounts for 0.00001-0.00006 parts by weight of the first slurry particles, so that the adhesion and solidification between adjacent particles are not influenced due to the fact that the thickness of the viscous water-blocking adhesive film is large, and the effect of a final product is not influenced due to the fact that the first slurry particles are absorbed by internal moisture.
Step S3: preparing a second slurry pellet, wherein the second slurry pellet comprises a second recycled fine aggregate, a second cement second pigment and water, and the color of the second recycled fine aggregate is matched with the color of the second pigment.
The surface of the second slurry particles has viscosity, and the particle size of the second slurry particles is matched with the size of the color point in the bicolor artificial artistic stone plate, and can be specifically adjusted according to the application scene of the bicolor artificial artistic stone plate and the like.
The colors of the second recycled fine aggregate, the second cement and the second pigment are matched with the other (second) color of the two-color artificial artistic stone slab, for example, when the two-color artificial artistic stone slab is black and red, the colors of the second recycled fine aggregate and the second pigment can be red. Meanwhile, the performance of the second recycled fine aggregate meets the quality requirements of class I and class II of the recycled fine aggregate specified in GB/T25176-2010.
Step S4: spraying the super absorbent resin on the second slurry granules in a stirring state, so that the super absorbent resin is uniformly adhered to the surfaces of the second slurry granules, and the super absorbent resin absorbs the moisture on the surfaces of the second slurry granules to form the viscous water-blocking adhesive film.
In this step, the weight ratio of the super absorbent resin to the second slurry particles is also 0.00001 to 0.00006 parts. By spraying the super absorbent resin on the surface of the second slurry particles, the super absorbent resin can absorb the surplus free water in the surface layer of the second slurry particles and form a viscous water-blocking adhesive film on the surface of the second slurry particles. And the weight part ratio of the high water absorbent resin to the second slurry granules is 0.00001-0.00006, so that the adhesion and solidification between adjacent granules are not influenced due to the fact that the thickness of the viscous water-blocking adhesive film is large, and the effect of the final product is not influenced due to the fact that the second slurry granules are absorbed by internal moisture.
Step S5: and uniformly mixing the first slurry granules with the adhesive water-blocking adhesive film on the surface and the second slurry granules according to a preset proportion to prepare the plate. The preset proportion can be adjusted according to the product requirement. Because the surfaces of the first sizing agent granules and the second sizing agent granules are provided with the adhesive water-blocking adhesive films, no cementing or bonding material is needed to be added, and the plates can be prepared by only mixing the first sizing agent granules and the second sizing agent granules according to a preset proportion. When the first slurry particles and the second slurry particles are mixed, the sticky water-blocking adhesive films on the surfaces of the first slurry particles and the second slurry particles can respectively effectively inhibit the diffusion and permeation of surplus free water (with pigment) to adjacent particles, so that the diffusion of the surplus free water in the mixed first slurry particles and second slurry particles is obviously inhibited, and the defects of common artificial stone double-color or multi-color plate molding, namely, the diffusion of the surplus free water which does not enter a curing stage or is in a curing stage in different color particles, the diffused free water becomes a carrier of pigment particles, and further, the mutual diffusion and permeation of different colors are caused, and the defects of mutual permeation, overlapping, blurred outline, unclear respective hues and unclear hue characteristics are caused after the double-color plate curing are caused.
Specifically, the sheet material may be prepared by: firstly, the first slurry granules and the second slurry granules are crossed and poured into the same container according to a preset proportion to be uniformly mixed, and mixed granules are obtained; then transferring the mixed granules into a forming die, and carrying out die assembly, vacuumizing, vibration and pressing on the forming die to form a blank; finally, the blank is solidified (for example, room temperature solidification) to prepare a plate blank, and the plate blank is polished to obtain the bicolor artificial artistic stone plate. Of course, in practical applications, other methods may be used to prepare the board using a mixture of the two slurry pellets.
According to the preparation method of the bicolor artificial stone slab, the first slurry granules and the second slurry granules are prepared through different regenerated fine aggregates and pigments, the surfaces of the first slurry granules and the second slurry granules are respectively sprayed with the high water-absorbing resin, and the first slurry granules and the second slurry granules sprayed with the high water-absorbing resin are mixed according to the preset proportion to prepare the slab, so that infiltration and diffusion of pigment particles carried by water in a free state can be reduced, the problem of unclear texture boundary texture contours of different colors is solved, and the problems of dry flowers and pits which are frequently caused by common cement-based artificial stones are avoided. In addition, the preparation method of the bicolor artificial artistic stone plate can also reduce the use of natural sand stone, and has wide raw material sources and lower cost.
In one embodiment of the present invention, as shown in fig. 2, the step S1, that is, the preparation of the first slurry granule, may specifically include the following steps:
step S11: the following raw materials are uniformly mixed to form a first slurry: the cement comprises first recycled fine aggregate, recycled mortar powder, first cement, fly ash, a high-efficiency water reducing agent, first pigment and water.
Specifically, the first recycled fine aggregate can be processed by gray construction waste, for example, the gray bricks and gray tile structure buildings removed by old villages or villages are crushed and sieved, and the first cement is gray cement, for example, ordinary silicate cement with the labels of 32.5, 42.5 and 52.5; the first pigment is black acid-resistant, alkali-resistant and aging-resistant pigments such as iron black, carbon black and the like; the regenerated mortar powder can be fine powder obtained by recycling and crushing masonry mortar blocks used for enclosure or isolation in urban old improvement; the high-efficiency water reducer can adopt polycarboxylic acid high-efficiency water reducer, and the water reducing rate is not less than 25%.
In particular, the first slurry is formed from the following components in parts by mass: 60-75 parts of first recycled fine aggregate, 5-15 parts of recycled mortar powder, 8-18 parts of first cement, 1-2 parts of fly ash, 0.2-0.6 part of high-efficiency water reducer, 0.18-0.32 part of first pigment and 1.5-5.0 parts of water.
Step S12: the first slurry is tinted with a first pigment and the tinted first slurry is prepared to form a first slurry pellet.
In this step, the color of the gray tile particles is used as a target color, and the color of the first slurry is adjusted to be consistent with the gray tile particle color by adjusting the amount of the first pigment until no color difference is observed visually. Through the mode, the problem that gray black parts are different in color depth after the double-color artificial artistic stone plate is polished can be solved.
In the step S12, the first slurry after being subjected to color mixing is prepared to form a first slurry granule, which may specifically include: and (3) passing the first slurry which is subjected to color mixing and is in a semi-dry and wet viscous state through a mesh screen with a preset pore diameter to obtain first slurry granules. The pore size of the mesh screen can be selected as required.
In one embodiment of the present invention, as shown in fig. 3, the step S2, that is, the preparation of the second slurry granule, may specifically include the following steps:
step S31: uniformly mixing the following raw materials to form second slurry: the second regenerated fine aggregate, regenerated red brick powder, second cement, mineral powder, an exciting agent, a high-efficiency water reducing agent, a second body pigment and water.
Specifically, the second recycled fine aggregate can be processed by red building waste, for example, the second recycled fine aggregate can be red brick particles obtained by crushing, screening and color selecting the building waste removed from old city improvement; the second cement is white cement, such as ordinary silicate white cement numbered 32.5, 42.5, 52.5; the second pigment is iron oxide red alkali-resistant and aging-resistant pigment; the regenerated red brick powder is fine powder obtained by recycling and crushing red brick blocks used for enclosing or isolation in urban old improvement; the mineral powder is white or off-white slag powder; the excitant is one or a mixture of more of lithium silicate, sodium silicate and potassium silicate which can carry out a re-gelation reaction with cement hydration products; the high-efficiency water reducer can adopt polycarboxylic acid high-efficiency water reducer, and the water reducing rate is not less than 25%.
In particular, the second slurry is formed from the following components in parts by mass: 60-75 parts of second recycled fine aggregate, 5-15 parts of recycled red brick powder, 8-18 parts of second cement, 1-2 parts of mineral powder, 0.3-0.5 part of excitant, 0.2-0.6 part of high-efficiency water reducer, 0.18-0.32 part of second pigment and 1.5-5.0 parts of water.
Step S32: the second slurry is tinted with a second pigment and the tinted second slurry is prepared to form second slurry pellets.
In this step, the color of the red brick particles is used as a target color, and the color of the second slurry is adjusted to be consistent with the color of the red brick particles by adjusting the amount of the second pigment until no color difference is observed visually. Through the mode, the problem that the color depth of the red part is different after the double-color artificial artistic stone plate is polished can be solved.
In the step S32, the second slurry after being mixed with colors is prepared to form second slurry granules, which may specifically include: and (3) passing the second slurry which is subjected to color mixing and is in a semi-dry and wet viscous state through a mesh screen with a preset pore diameter to obtain second slurry granules.
The building waste with different colors is selected as the aggregate of the first sizing agent particle and the second sizing agent particle, the original ground color and the original color of the building waste are fully utilized, the corresponding pigment is assisted, and the super absorbent resin is sprayed on the surfaces of the first sizing agent particle and the second sizing agent particle, so that the prepared double-color artificial stone slab has clear color outline, distinct and independent color characteristics, retains the ground color and the original color, receives the effects of old making and returning to the original color, and has the characteristics of green environmental protection, wide raw material sources, low cost and the like.
In addition, due to the special application of the super absorbent resin, the loss channels of the surface moisture of the first slurry granules and the second slurry granules are blocked, and the defects of dry pressing and pitting caused by surface water loss due to long-time stay and exposure of the granules due to production procedures and the like are effectively solved.
Mixing common natural quartz sand, quartz powder, white cement, a water reducing agent and water to prepare cement-based artificial stone slurry, mixing the raw materials in the prior art to form two parts, adding two different pigments into the two parts of slurry respectively, mixing the two parts of slurry respectively and independently to be in a semi-dry state, sieving the two parts of slurry with a mesh sieve with a predetermined aperture to obtain two types of granules with expected particle sizes, and finally, pouring the two types of granules into the same container in a crossing manner according to a predetermined proportion and mixing the two types of granules uniformly to obtain mixed granules A. Comparing it with the mixed pellets B prepared by the method of the present invention, placing the mixed pellets A, B into different molds, respectively, and pushing into a press to press, demold, maintain, polish, respectively, according to the same procedure, the comparison results are shown in table 1 below:
table 1: mixed slurry A, mixed slurry B appearance and pressed substrate comparative case
The invention also provides a bicolor artificial artistic stone slab which is prepared by the preparation method of the bicolor artificial artistic stone slab, and can be used as a bicolor decorative plate for municipal engineering and public facilities.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (8)
1. A method for preparing a bicolor artificial artistic stone slab, the method comprising:
preparing first slurry granules, wherein the first slurry granules comprise first regenerated fine aggregate, regenerated mortar powder, first cement, fly ash, a high-efficiency water reducing agent, a first pigment and water, the first regenerated fine aggregate is processed by gray building waste, the first cement is gray cement, and the first pigment is iron black or carbon black; the first slurry is formed by the following components in parts by mass: 60-75 parts of first recycled fine aggregate, 5-15 parts of recycled mortar powder, 8-18 parts of first cement, 1-2 parts of fly ash, 0.2-0.6 part of high-efficiency water reducer, 0.18-0.32 part of first pigment and 1.5-5.0 parts of water;
spraying the super absorbent resin on the first slurry granules in a stirring state to enable the super absorbent resin to be uniformly adhered to the surfaces of the first slurry granules, and absorbing the moisture on the surfaces of the first slurry granules by the super absorbent resin to form a viscous water-blocking adhesive film; the sprayed super absorbent resin accounts for 0.00001-0.00006 parts of the weight of the first slurry;
preparing second slurry granules, wherein the second slurry granules comprise second regenerated fine aggregate, regenerated red brick powder, second cement, mineral powder, an exciting agent, a high-efficiency water reducing agent, a second pigment and water, the second regenerated fine aggregate is processed by red building waste, the second cement is white cement, and the second pigment is iron oxide red; the second slurry is formed by the following components in parts by mass: 60-75 parts of second recycled fine aggregate, 5-15 parts of recycled red brick powder, 8-18 parts of second cement, 1-2 parts of mineral powder, 0.3-0.5 part of excitant, 0.2-0.6 part of high-efficiency water reducer, 0.18-0.32 part of second pigment and 1.5-5.0 parts of water;
spraying the super absorbent resin on the second slurry granules in a stirring state to enable the super absorbent resin to be uniformly adhered to the surfaces of the second slurry granules, and absorbing the moisture on the surfaces of the second slurry granules by the super absorbent resin to form a viscous water-blocking adhesive film; the sprayed super absorbent resin accounts for 0.00001-0.00006 parts of the weight of the second slurry;
and uniformly mixing the first slurry granules and the second slurry granules with the surfaces respectively provided with the viscous water blocking films according to a preset proportion to prepare the plate.
2. The method of producing a two-color artificial artistic stone according to claim 1, wherein said producing a first slurry pellet comprises:
the following raw materials are uniformly mixed to form a first slurry: the cement comprises first recycled fine aggregate, recycled mortar powder, first cement, fly ash, a high-efficiency water reducing agent, a first pigment and water;
the first slurry is tinted with a first pigment to conform the overall slurry color to the first recycled fine aggregate color, and the tinted first slurry is prepared to form a first slurry pellet.
3. The method of producing a two-color artificial artistic stone according to claim 2, wherein said preparing said toned first slurry to form first slurry pellets comprises:
and (3) passing the first slurry which is subjected to color mixing and is in a semi-dry and wet viscous state through a mesh screen with a preset pore diameter to obtain first slurry granules.
4. The method of producing a two-color artificial artistic stone according to claim 1, wherein said producing second slurry pellets comprises:
uniformly mixing the following raw materials to form second slurry: the second regenerated fine aggregate, regenerated red brick powder, second cement, mineral powder, an exciting agent, a high-efficiency water reducing agent, a second pigment and water;
and (3) toning the second slurry by using a second pigment so that the overall color of the second slurry is consistent with the color of the second recycled fine aggregate, and preparing the toned second slurry to form second slurry granules.
5. The method of making a two-color artificial artistic stone according to claim 4, wherein said preparing said toned second slurry to form second slurry pellets comprises:
and (3) passing the second slurry which is subjected to color mixing and is in a semi-dry and wet viscous state through a mesh screen with a preset pore diameter to obtain second slurry granules.
6. The method for preparing the bicolor artificial artistic stone slab according to claim 5, wherein the mineral powder is white or off-white slag powder, and the activator is formed by mixing one or more of lithium silicate, sodium silicate and potassium silicate.
7. The method for preparing a two-color artificial artistic stone according to any one of claims 1 to 6, wherein the preparing a board after uniformly mixing the first slurry granules and the second slurry granules respectively having the adhesive water-blocking film on the surfaces according to a preset ratio comprises:
the first slurry granules and the second slurry granules with the surfaces respectively provided with the viscous water blocking films are crosswise poured into the same container and uniformly mixed to obtain mixed granules;
transferring the mixed granules into a forming die, and carrying out die assembly, vacuumizing, vibration and pressing on the forming die to form a blank;
and (3) curing the blank to prepare a plate blank, and polishing and grinding the plate blank to obtain the bicolor artificial artistic stone plate.
8. A two-color artificial artistic stone slab, characterized in that it is obtained by a method for producing a two-color artificial artistic stone slab according to any one of claims 1 to 7.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110423063A (en) * | 2019-07-08 | 2019-11-08 | 武汉来道建材科技有限公司 | A kind of imitation stone lightweight porous disc and preparation method thereof |
| CN111517725A (en) * | 2020-05-06 | 2020-08-11 | 深圳市绿志新型建材研究院有限公司 | Large-aggregate inorganic regenerated artificial artistic stone plate and preparation method thereof |
| CN111517726A (en) * | 2020-05-06 | 2020-08-11 | 深圳市绿志新型建材研究院有限公司 | Recycled aggregate artificial artistic stone veneer and preparation method thereof |
| CN112979237A (en) * | 2021-02-05 | 2021-06-18 | 廊坊市泽龙混凝土有限公司 | High-strength color concrete and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110423063A (en) * | 2019-07-08 | 2019-11-08 | 武汉来道建材科技有限公司 | A kind of imitation stone lightweight porous disc and preparation method thereof |
| CN111517725A (en) * | 2020-05-06 | 2020-08-11 | 深圳市绿志新型建材研究院有限公司 | Large-aggregate inorganic regenerated artificial artistic stone plate and preparation method thereof |
| CN111517726A (en) * | 2020-05-06 | 2020-08-11 | 深圳市绿志新型建材研究院有限公司 | Recycled aggregate artificial artistic stone veneer and preparation method thereof |
| CN112979237A (en) * | 2021-02-05 | 2021-06-18 | 廊坊市泽龙混凝土有限公司 | High-strength color concrete and preparation method thereof |
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