CN114057510A - Processing method of imitated volcanic stone decorative material - Google Patents
Processing method of imitated volcanic stone decorative material Download PDFInfo
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- CN114057510A CN114057510A CN202111456768.6A CN202111456768A CN114057510A CN 114057510 A CN114057510 A CN 114057510A CN 202111456768 A CN202111456768 A CN 202111456768A CN 114057510 A CN114057510 A CN 114057510A
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- 238000003672 processing method Methods 0.000 title claims abstract description 9
- 239000004575 stone Substances 0.000 title claims description 15
- 239000011159 matrix material Substances 0.000 claims abstract description 62
- 239000002002 slurry Substances 0.000 claims abstract description 58
- 239000011148 porous material Substances 0.000 claims abstract description 56
- 239000003818 cinder Substances 0.000 claims abstract description 42
- 239000000843 powder Substances 0.000 claims abstract description 25
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- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 21
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- 239000004568 cement Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
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- 230000000694 effects Effects 0.000 claims description 16
- 239000000049 pigment Substances 0.000 claims description 14
- -1 polydimethylsiloxane Polymers 0.000 claims description 12
- 239000002893 slag Substances 0.000 claims description 10
- 238000005728 strengthening Methods 0.000 claims description 10
- 238000005187 foaming Methods 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 7
- 239000003961 penetration enhancing agent Substances 0.000 claims description 7
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 6
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- 229920000570 polyether Polymers 0.000 claims description 6
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- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- RBNPOMFGQQGHHO-UHFFFAOYSA-N glyceric acid Chemical compound OCC(O)C(O)=O RBNPOMFGQQGHHO-UHFFFAOYSA-N 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims 1
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- 239000002956 ash Substances 0.000 description 8
- 238000005034 decoration Methods 0.000 description 8
- 239000004567 concrete Substances 0.000 description 6
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
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- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 description 4
- 229910052627 muscovite Inorganic materials 0.000 description 4
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- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 229910052628 phlogopite Inorganic materials 0.000 description 3
- 229910052875 vesuvianite Inorganic materials 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
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- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- 241000876852 Scorias Species 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
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- 230000001276 controlling effect Effects 0.000 description 1
- GPLRAVKSCUXZTP-UHFFFAOYSA-N diglycerol Chemical compound OCC(O)COCC(O)CO GPLRAVKSCUXZTP-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000011468 face brick Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000004872 foam stabilizing agent Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
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Images
Classifications
-
- 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
-
- 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
- B28B1/50—Producing shaped prefabricated articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
-
- 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
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/02—Conditioning the material prior to shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/003—Methods for mixing
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A method for processing a volcanic stone-like decorative material. The processing method of the imitation volcanic rock decorative material has the advantages of high reliability and strong reproducibility on the premise of meeting the product strength and simultaneously embodying the characteristics of natural volcanic rocks. The volcanic cinders comprise volcanic cinders and porous matrix slurry, wherein the volcanic cinders are irregular cinders with the size of 20-150 mm; the porous matrix slurry comprises the following components in parts by mass: cement: 40-90, mineral micro powder: 10-70, plasticizer: 0.1-2.2, and water: 29-45; what is needed isAfter the porous matrix slurry is prepared, the foam stabilizer 150-1400g/m is added into the porous matrix slurry according to the volume mass ratio30.2-1.8g/m of pore regulator3And a foaming agent, wherein the addition amount of the foaming agent is calculated and quantified according to the design dry apparent density of the porous matrix; according to the invention, the volcanic rock-like decorative material porous matrix is finally formed after the porous matrix slurry is solidified and hardened, so that pores with different pore sizes in different proportions can be stably dispersed.
Description
Technical Field
The invention belongs to the technical field of building decoration materials, and particularly relates to a processing method of a volcanic rock imitating decoration material.
Background
The volcanic rock imitating decorating material consists of volcanic slag and porous matrix. Wherein the scoria is used as decorative material filling aggregate, the particle diameter range is 20mm-150mm, and the stacking density range is 500kg/m3-800kg/m3Colors include black, gray, dark brown, etc. The porous matrix is prepared by taking cement, mineral micro powder (volcanic ash, silica fume and metakaolin) and water as main raw materials, adding foaming agents, foam stabilizers, plasticizers, pigments, decorative fillers, pore regulating agents, waterproofing agents and the like, and adopting a chemical foaming process.
In order to form the simulation effect of the volcanic rock in the porous matrix, it is necessary to provide the solidified material with bubbles having different sizes. The applicant has the initial research and development results of CN110372275A, the volcanic slag imitating light heat-insulating composite building block and the processing method thereof, and the research on the preparation and the performance of the light porous concrete with the imitated volcanic slag decoration effect, namely concrete and cement products 2020-6.
The volcanic cinders-imitating light heat-insulation composite building block prepared by the method has irregular and long-round air holes, and statistical results show that the air hole rate is 33.8%, the size of the air holes is 0.1-3mm, the proportion of the air holes with the sizes of 0.1-0.5mm, 0.5-1mm and 1-3mm is 67%, 24% and 9%, respectively, and the volcanic cinders-imitating light-insulation composite building block has a good decoration effect.
The pore size and the pore size distribution of pores of the lightweight porous concrete can be changed by researching different proportions of the components and adjusting the mixing amount of the pore regulator and the fly ash, so that the lightweight porous concrete has the volcanic cinders imitating decoration effect.
However, in the two preliminary results, we find in the advanced research and development process that the technical solutions of the two documents are difficult to stably realize the distribution of pores with different pore diameters, and the prepared product has poor consistency and cannot reliably realize pore adjustment.
Disclosure of Invention
Aiming at the problems, the invention provides the processing method of the imitation volcanic stone decorative material with high reliability and strong reproducibility on the premise of meeting the product strength and simultaneously reflecting the characteristics of natural volcanic stone.
The technical scheme of the invention is as follows:
a processing method of a volcanic rock-like decorative material comprises volcanic slag block particles and porous matrix slurry, wherein the volcanic slag block particles are irregular block particles with the size of 20-150 mm; the porous matrix slurry comprises the following components in parts by mass:
cement: 40-90, mineral micro powder: 10-70, plasticizer: 0.1-2.2, and water: 29-45;
after the porous matrix slurry is prepared, the foam stabilizer 150-1400g/m is added into the porous matrix slurry according to the volume mass ratio30.2-1.8g/m of pore regulator3And a foaming agent, wherein the addition amount of the foaming agent is calculated and quantified according to the design dry apparent density of the porous matrix;
then, the following steps are carried out:
1) randomly stacking the volcanic cinders into a casting mold, stacking the volcanic cinders to the upper edge of the mold, and arranging a mold upper cover with a plurality of casting openings on the mold opening for later use;
2) preparing the porous matrix slurry, uniformly mixing the cement, the mineral micro powder, the plasticizer and the water, adding a certain amount of foam stabilizer and foaming agent, stirring at the rotating speed of 180 plus 700 rpm by adopting forced high-speed stirring equipment, controlling the stirring time to be 8-12 seconds, adding the pore regulator when the last 3 seconds of the stirring is finished, and stopping stirring when the stirring time reaches the preset time to obtain the unevenly foamed porous matrix slurry;
3) pouring the unevenly foamed porous matrix slurry prepared in the step 2) into a mold through a pouring gate of an upper cover of the mold, and filling gaps among the volcanic cinders after foaming the porous matrix slurry;
4) initial setting, curing and demolding to obtain the volcanic stone imitating decorative material.
The pore regulator is polydimethylsiloxane, polyoxypropylene ethylene oxide glycerol ether or polyether modified polysiloxane.
One or more of pigment, decorative filler and waterproof agent are added into the porous matrix slurry;
the addition amount of the pigment is 0-16.0kg/m30-9.0kg/m of decorative filler3 0-5.0kg/m of water-proofing agent3。
The method also comprises a pretreatment step sequence of the volcanic cinders, which comprises the following steps:
sorting volcanic cinders: classifying and grading volcanic cinders according to the stone-like effect design;
shaping volcanic cinders: shaping the volcanic cinders into blocks by a roller method;
strengthening the surface of the volcanic cinders after shaping: and (3) adopting a penetration enhancer to perform strengthening treatment on the surfaces of the volcanic cinders.
And 4) maintaining the blank body and cutting the product of the volcanic stone-like decorative material prepared in the step 4), performing strengthening treatment on the surface of the cut volcanic stone-like decorative block by using a penetration enhancer, and then quickly drying or airing.
During initial setting in the step 4), after the green body of the imitation volcanic stone decorative material has initial strength or reaches the demolding strength, placing the green body in a closed space with a mold or demolding, and carrying out reaming treatment by adopting steam to adjust the aperture size.
The invention aims to provide a method for processing a decorative material which embodies the characteristic effect of natural volcanic rock to the maximum extent, and the key technology of the invention is as follows: firstly, natural volcanic rock is used as a base material and is stacked in a mold cavity; secondly, pouring unevenly foamed porous matrix slurry into the mold; and finally, carrying out unbalanced foaming on the slurry in the mold cavity to obtain bubbles with uneven pore diameters. Although in the prior art, a pore adjusting technical means is preliminarily provided for obtaining bubbles with uneven pore diameters, namely, defoaming agents are adopted to combine pores in the bubbles to obtain pores with uneven sizes, in practice, a reliable and consistent product is difficult to obtain. The core of the invention is in the hole-adjusting step, after the hole-adjusting agent is added into the slurry, the stirring time is strictly controlled. Because the stirring time is extremely short, the pore regulator is in a non-uniform dispersion state in the porous matrix slurry. The blowing agent produces gas from a chemical reaction and forms bubbles of relatively uniform pore size in the porous matrix slurry. If the pore regulating agent is just dispersed in the vicinity of the bubble, the pore regulating agent is dissolved in the bubble liquid, the surface tension of the position is obviously reduced, the elasticity of the bubble film is destroyed, the bubble is pulled and extended to the periphery and is further destabilized, and the bubble and other bubbles in the vicinity are combined into a large bubble until the synthesized large bubble has enough film elasticity and stably exists. Finally, the porous substrate slurry is solidified and hardened to form the porous substrate of the imitation volcanic stone decorative material, so that the porous substrate can be stably dispersed with pores with different proportions and different pore sizes.
Drawings
FIG. 1 is a first schematic diagram of step 1) of the present invention,
FIG. 2 is a second schematic diagram of step 1) of the present invention,
FIG. 3 is a schematic representation of step 3) of the present invention,
FIG. 4 is a schematic diagram of the initial setting state in step 4) of the present invention,
figure 5 is a schematic view of a longitudinal section of the decor material made according to the invention,
FIG. 6 is a schematic view of a lateral cross section of a decorative material produced by the present invention.
In the figure, 1 is a mould, 2 is volcanic cinders, 3 is a mould upper cover, 31 is a pouring gate, 4 is slurry, 41 is a hole adjusting area, and 42 is a bread head.
Detailed Description
The invention is further described below with reference to fig. 1-6.
The invention relates to a processing method of a volcanic rock-like decorative material, which comprises volcanic slag block particles and porous matrix slurry, wherein the volcanic slag block particles are irregular block particles with the size of 20-150 mm; in practical application, the upper limit of the size of the volcanic cinders 2 can be adjusted according to the height of the inner cavity of the die 1, for example, 80cm × 80cm wall tiles are prepared, and the depth of the die cavity can be designed to be 5cm, 10cm, 20cm or even larger. The decorative material formed by the die cavity is cut into a plurality of unit decorative block materials.
The porous matrix slurry comprises the following components in parts by mass:
cement: 40-90, mineral micro powder: 10-70, plasticizer: 0.1-2.2, and water: 29-45;
wherein the mineral micropowder can be volcanic ash, silica fume, metakaolin, etc.
The mineral micropowder is chemically active powder prepared from natural minerals by physical process (such as grinding) or chemical process (such as chemical excitation and high-temperature sintering), has micron-sized particle size, and usually has chemical reaction with cement hydration product calcium hydroxide to form a substance with higher strength and similar to cement hydration product, thereby improving the strength of concrete.
The volcanic ash is particles and mineral particles with the diameter less than 2mm which are sprayed out when volcanic eruption occurs. In explosive fire motions, solid stones and molten slurries are broken down into fine particles to form pozzolans. It has pozzolanic activity, i.e. it can react with calcium hydroxide at normal temperature in the presence of water to form a hydrate with hydraulic gelling ability. Therefore, the milled product can be used as a mixed material of cement and an admixture of concrete; the silicon ash is produced in the ore-smelting electric furnace when ferroalloy is used for smelting ferrosilicon and industrial silicon (metallic silicon)2And Si gas, which is quickly oxidized, condensed and precipitated with air after being discharged. The activity of the composite is far greater than that of volcanic ash, and the enhancement effect is more obvious; metakaolin is amorphous aluminum silicate formed by low-temperature calcination of ultrafine kaolin, and has high pozzolanic activity.
After the porous matrix slurry is prepared, the foam stabilizer 150-1400g/m is added into the porous matrix slurry according to the volume mass ratio30.2-1.8g/m of pore regulator3And a foaming agent, wherein the addition amount of the foaming agent is calculated and quantified according to the designed dry apparent density of the porous matrix; additives such as plasticizers, foaming agents, stabilizers and the like belong to the conventional technology in the field, and the prepared slurry also belongs to the conventional technology and is not described in detail in the present case.
Then, the following steps are carried out:
1) randomly stacking the volcanic cinders 2 in a casting mold 1, stacking the volcanic cinders to the upper edge of the mold 1, and arranging a mold upper cover 3 with a plurality of casting openings on the mold opening for later use; as shown in fig. 1 and 2;
2) preparing porous matrix slurry, uniformly mixing cement, mineral micro powder, plasticizer and water, adding quantitative foam stabilizer and foaming agent, stirring at the rotating speed of 180 plus materials at 700 rpm by adopting forced high-speed stirring equipment for 8-12 seconds, adding pore regulator when the last 3 seconds of stirring is finished, and stopping stirring when the stirring time reaches the preset time to obtain the unevenly foamed porous matrix slurry; this step is a core technical improvement of the present invention, and it is a conventional technical means in the art to control the foaming time after adding the foaming agent. In the technical means of pore regulation mentioned in the prior art of the invention, there is no stable means for how to obtain pores with non-uniform pore diameter after adding the pore regulator. The ratio of the pore regulator and other components can only be controlled correspondingly. The invention changes the habitual thinking in the field that the pore regulator is added at the final stage of foaming and is stirred in a short time to be unevenly distributed in the slurry, and of course, different adding forms can be matched, for example, the pore regulator is dispersedly added to different positions of the slurry. This creates localized macro-bubble regions within the uniform porous matrix slurry.
3) Pouring the unevenly foamed porous matrix slurry prepared in the step 2) into the mold 1 through the pouring gate 31 of the upper cover 3 of the mold, and filling the gaps among the volcanic cinders 2 after foaming the porous matrix slurry; as shown in fig. 3 and 4;
4) initial setting, curing and demolding to obtain the volcanic stone imitating decorative material.
The pore regulator in the invention is organic silicon, polyether or polyether modified organic silicon, such as polydimethylsiloxane, polyoxypropylene ethylene oxide glycerol ether or polyether modified polysiloxane.
In order to enrich the decorative effect of the material, one or more of pigment, decorative filler and waterproof agent are added into the porous matrix slurry 4; the addition amount of the pigment is 0-16.0kg/m30-9.0kg/m of decorative filler3 0-5.0kg/m of water-proofing agent3. The pigment is used for adjusting the color of the porous matrix and imitating the color of the vesuvianite; mixing decorative filler (muscovite powder, aurum mica powder, cullet, etc.)The impurities are mixed with the porous matrix, so that the decorative property of the porous matrix is improved; the waterproofing agent is used to improve the impermeability and durability of the porous substrate. The decorative filler is mainly used for improving the decorative effect of the volcanic stone-like decorative material, simulating the shining substances usually appearing in stone materials, and achieving the decorative effect of the stone materials when being doped with a trace amount of decorative fillers such as muscovite powder, phlogopite powder, cullet and the like. The decorative filler only plays a decorative role. Muscovite powder and phlogopite powder are mainly in the form of flakes, granules and powder; the cullet is mainly in the form of crushed stone and powder.
For preventing natural volcanic cinders piece granule after pouring into the slurry, absorb moisture in the slurry to and for reinforcing natural volcanic cinders intensity, still include the preliminary treatment preface to irregular volcanic cinders piece granule, include:
sorting volcanic cinders: classifying and grading volcanic cinders according to the stone-like effect design;
shaping volcanic cinders: shaping the volcanic cinders into blocks by a roller method;
strengthening the surface of the volcanic cinders after shaping: and (3) strengthening the surface of the volcanic cinders by adopting a penetration enhancer. Surface strengthening treatment: soaking, centrifugal drying and air drying, relating to the concentration, time, working procedures and technological parameters of the penetration enhancer. Since this technical means is also conventional in the art, it is not described herein in detail.
Maintaining the blank body of the artificial volcanic rock decoration material prepared in the step 4), cutting the product, performing strengthening treatment on the surface of the cut artificial volcanic rock decoration block material by adopting a penetration enhancer, and then quickly drying or airing.
During initial setting in the step 4), when the green body of the imitated volcanic stone decorative block material has initial strength or reaches the demolding strength, the green body can be placed in a closed space with a mold or demolded, and steam with different temperatures is adopted for carrying out reaming treatment so as to adjust the aperture size and further expand the aperture.
Example 1: processing indoor wall tiles of 80cm multiplied by 5 cm;
sorting volcanic cinders into irregular particles with the size of 20-150 mm; the cavity depth was designed to be 16 cm.
The porous matrix slurry comprises the following components in parts by mass:
cement: 40, mineral micro powder: 70, plasticizer: 0.1, and water: 45, a first step of;
wherein the mineral micropowder selects volcanic ash and silica fume;
pigment and decorative filler are also added; the addition amount of the pigment is 8.0kg/m3Decorative filler 4.0kg/m3. The pigment is used for adjusting the color of the porous matrix and imitating the color of the vesuvianite; the decorative filler can be selected from muscovite powder, phlogopite powder, cullet and the like.
After the porous matrix slurry is prepared, 1400g/m of foam stabilizer is added into the porous matrix slurry according to the volume mass ratio30.2g/m of pore regulator3And a foaming agent, wherein the addition amount of the foaming agent is calculated and quantified according to the designed dry apparent density of the porous matrix; pore regulating agent: polydimethylsiloxane.
Uniformly mixing cement, mineral micro powder, plasticizer and water, adding a certain amount of foam stabilizer and foaming agent, stirring at the rotating speed of 700 revolutions per minute by adopting a forced high-speed stirring device for 12 seconds, adding a pore regulator when the last 3 seconds of stirring is reached, and stopping stirring when the stirring time reaches a preset time to obtain the unevenly foamed porous matrix slurry;
pouring, initial setting, curing, demolding and maintaining to obtain the volcanic stone-imitated decorative compact. And cutting to the designed size of the product. The dry apparent density of the obtained product is 700kg/m3The indoor wall tile has natural volcanic rock pores and pores of different sizes on the surface.
Example 2: processing the external wall tiles of 80cm multiplied by 10 cm;
sorting volcanic cinders into irregular particles with the size of 20-150 mm; the cavity depth was designed to be 20 cm.
The porous matrix slurry comprises the following components in parts by mass:
cement: 90, mineral micro powder: 10, plasticizer: 2.2, and water: 29;
wherein the mineral micropowder can be volcanic ash, silica fume, metakaolin, etc.;
pigment, decorative filler and waterproof agent are also added; the addition amount of the pigment is 16.0kg/m39.0kg/m of decorative filler3 5.0kg/m of a water repellent3. The pigment is used for adjusting the color of the porous matrix and imitating the color of the vesuvianite; the decorative filler is cullet.
After the porous matrix slurry is prepared, adding 150g/m of foam stabilizer according to the volume mass ratio3Pore regulator 1.0 g/m3And a foaming agent, wherein the addition amount of the foaming agent is calculated and quantified according to the designed dry apparent density of the porous matrix;
pore regulating agent: polyoxypropylene ethylene oxide glyceryl ether.
Uniformly mixing cement, mineral micro powder, plasticizer and water, adding a certain amount of foam stabilizer and foaming agent, stirring at a rotating speed of 180 revolutions per minute by adopting a forced high-speed stirring device for 8 seconds, adding a pore regulator in the 5 th second of stirring, and stopping stirring when the stirring time reaches a preset time to obtain the unevenly foamed porous matrix slurry;
pouring, initial setting, curing, demolding and maintaining to obtain the volcanic stone-imitated decorative compact. And cutting to the designed size of the product. The dry apparent density obtained was 850kg/m3And the surface of the external wall face brick is provided with natural volcanic stone pores and pores with different sizes.
Example 3: processing wall bricks of 60cm multiplied by 80cm multiplied by 20 cm;
sorting volcanic cinders into irregular particles with the size of 20-150 mm; the cavity depth was designed to be 40 cm.
The porous matrix slurry comprises the following components in parts by mass:
cement: 60, mineral micro powder: 30, plasticizer: 1.5, and water: 35;
wherein the mineral micropowder can be volcanic ash, silica fume, metakaolin, etc.;
3.0kg/m of water repellent3。
After the porous matrix slurry is prepared, adding a foam stabilizer of 800g/m into the porous matrix slurry according to the volume mass ratio3Pore regulator 1.8/m3And a foaming agent, wherein the addition amount of the foaming agent is calculated and quantified according to the designed dry apparent density of the porous matrix; pore regulating agent: polyether modified polysiloxane;
uniformly mixing cement, mineral micro powder, plasticizer and water, adding a certain amount of foam stabilizer and foaming agent, stirring at the rotating speed of 500 revolutions per minute by adopting a forced high-speed stirring device for 10 seconds, adding a pore regulator when the stirring time reaches the preset time, and stopping stirring to obtain the unevenly foamed porous matrix slurry;
pouring, initial setting, curing, demolding and maintaining to obtain the volcanic stone-imitated decorative compact. And cutting to the designed size of the product. The dry apparent density of 950kg/m is obtained3The surface of the wall brick is provided with natural volcanic rock pores and pores with different sizes.
The volcanic rock-like decorative material obtained after demolding according to the method of the present invention, as shown in fig. 5 and 6, the natural volcanic slag particles are wrapped by the solidified slurry, and the pores formed by normal foaming in the slurry are not uniformly distributed with the pore-adjusting region 41, and after cutting according to the two-dot chain line in fig. 5, the surface as shown in fig. 6 is obtained, which not only has the uniform part of the small pores obtained by foaming, but also shows the cross section of the natural volcanic rock particles 2, and the large pore region unevenly distributed in the small pore region (i.e., the pore-adjusting region 41). Because the natural and artificial air holes with different sizes are distributed on the surface of the decorative material, the decorative material integrally shows the effect of the volcanic rock. Is particularly suitable for indoor decoration of places with acoustic requirements.
The present invention is not limited to the above-mentioned embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some technical features without creative efforts according to the disclosed technical contents, and these substitutions and modifications are all within the protection scope of the present invention.
Claims (6)
1. A processing method of a volcanic rock-like decorative material is characterized by comprising volcanic slag block particles and porous matrix slurry, wherein the volcanic slag block particles are irregular block particles with the size of 20-150 mm; the porous matrix slurry comprises the following components in parts by mass:
cement: 40-90, mineral micro powder: 10-70, plasticizer: 0.1-2.2, and water: 29-45;
after the porous matrix slurry is preparedAdding 1400g/m of foam stabilizer 150-30.2-1.8g/m of pore regulator3And a foaming agent, wherein the addition amount of the foaming agent is calculated and quantified according to the design dry apparent density of the porous matrix;
then, the following steps are carried out:
1) randomly stacking the volcanic cinders into a casting mold, stacking the volcanic cinders to the upper edge of the mold, and arranging a mold upper cover with a plurality of casting openings on the mold opening for later use;
2) preparing the porous matrix slurry, uniformly mixing the cement, the mineral micro powder, the plasticizer and the water, adding a certain amount of foam stabilizer and foaming agent, stirring at the rotating speed of 180 plus 700 rpm by adopting forced high-speed stirring equipment, controlling the stirring time to be 8-12 seconds, adding the pore regulator when the last 3 seconds of the stirring is finished, and stopping stirring when the stirring time reaches the preset time to obtain the unevenly foamed porous matrix slurry;
3) pouring the unevenly foamed porous matrix slurry prepared in the step 2) into a mold through a pouring gate of an upper cover of the mold, and filling gaps among the volcanic cinders after foaming the porous matrix slurry;
4) initial setting, curing and demolding to obtain the volcanic stone imitating decorative material.
2. The method for processing the volcanic rock-like decorative material as claimed in claim 1, wherein the pore-adjusting agent is polydimethylsiloxane, polyoxypropylene ethylene oxide glycerol ether or polyether modified polysiloxane.
3. The method for processing the volcanic-imitated decorative material according to claim 1, wherein one or more of pigments, decorative fillers and water-proofing agents are added into the porous matrix slurry;
the addition amount of the pigment is 0-16.0kg/m30-9.0kg/m of decorative filler3 0-5.0kg/m of water-proofing agent3。
4. The method as claimed in claim 1, further comprising a step of pre-treating the volcanic cinders, comprising:
sorting volcanic cinders: classifying and grading volcanic cinders according to the stone-like effect design;
shaping volcanic cinders: shaping the volcanic cinders into blocks by a roller method;
strengthening the surface of the volcanic cinders after shaping: and (3) adopting a penetration enhancer to perform strengthening treatment on the surfaces of the volcanic cinders.
5. The method for processing the volcanic stone-like decorative material as claimed in claim 1, wherein the volcanic stone-like decorative material obtained in the step 4) is subjected to green body maintenance, product cutting, surface strengthening treatment of the cut volcanic stone-like decorative block material by using a penetration enhancer, and then rapid drying or airing.
6. The method as claimed in claim 1, wherein the blank of the volcanic rock-like decorative material is initially solidified, and after the blank has an initial strength or a demolding strength, the blank is placed in a closed space with a mold or demolded, and steam is used to perform a hole expanding process to adjust the size of the hole.
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