CN109503091B - Water-washed stone brick, preparation method thereof and water-washed stone wall - Google Patents
Water-washed stone brick, preparation method thereof and water-washed stone wall Download PDFInfo
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- CN109503091B CN109503091B CN201910036171.2A CN201910036171A CN109503091B CN 109503091 B CN109503091 B CN 109503091B CN 201910036171 A CN201910036171 A CN 201910036171A CN 109503091 B CN109503091 B CN 109503091B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/08—Slag cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/06—Inhibiting the setting, e.g. mortars of the deferred action type containing water in breakable containers ; Inhibiting the action of active ingredients
- C04B40/0658—Retarder inhibited mortars activated by the addition of accelerators or retarder-neutralising agents
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/53—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone involving the removal of at least part of the materials of the treated article, e.g. etching, drying of hardened concrete
- C04B41/5323—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone involving the removal of at least part of the materials of the treated article, e.g. etching, drying of hardened concrete to make grain visible, e.g. for obtaining exposed aggregate concrete
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/72—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone involving the removal of part of the materials of the treated articles, e.g. etching
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
- E04C1/40—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Finishing Walls (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
Abstract
The invention belongs to the technical field of building materials, and particularly relates to a washed stone brick, a preparation method thereof and a washed stone wall body. The invention provides a preparation method of a washed stone brick, which comprises the steps of firstly providing a base cloth soaked with a retarder solution and a mixture comprising aggregate, pigment, cement and water, then covering the base cloth soaked with the retarder solution on the bottom surface inside a mould, pouring the mixture after carrying out first standing, then carrying out second standing on the obtained washed stone slurry, demoulding after hardening the surface layer, removing the base cloth to obtain a washed stone blank body, and finally washing the surface of the base cloth in the obtained washed stone blank body to expose the aggregate to obtain the washed stone brick. Experimental results show that the exposure depth of the stone on the surface of the washed stone brick can be controlled to be 1/4-1/2 of the particle size of the stone, the exposure depth of the stone is consistent, the surface of the washed stone is attractive, and the aggregate is firmly fixed.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to a washed stone brick, a preparation method thereof and a washed stone wall body.
Background
The washed stone is a decorative product which is prepared by mixing natural river, sea pebble or gravel with cement in a certain proportion, coating the mixture on a base layer, flattening the mixture by using a load-bearing tool, and completely treating the surface adhesive to expose the original appearance of the stone.
The traditional preparation method of the water washing stone comprises two methods: firstly, uniformly stirring the mortar, the toner and the building adhesive, then adding stones, fully stirring, paving, trowelling and beating to obtain the mortar; the other method is that after the mortar is stirred, the mortar is paved and leveled to 0.5cm below the survival elevation, then stones are spread by hands, evenly and compactly, and then the mortar is patted out. After the mortar is beaten out, the mortar is initially set for half an hour or so, then large sponge can be used for dipping water to lightly scrub the cement mortar on the surface of the stone, the water-washed stone surface layer which is beautiful and vivid is presented to people, and then the maintenance for 3-7 days is needed to meet the strength requirement of the water-washed stone.
However, the existing stone washing preparation method has the defect of uneven exposure depth of the stone; and has higher requirements on operation technology and high production cost.
Disclosure of Invention
In view of the above, the invention aims to provide a preparation method of a washed stone brick, and the washed stone obtained by the preparation method provided by the invention meets the requirement of consistent exposure depth of stone on the surface of the washed stone; the invention also provides the washed stone brick and the washed stone wall body with the same exposed depth of the stone on the surface.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention provides a preparation method of washed stone bricks, which is characterized by comprising the following steps:
(1) providing a primary backing impregnated with a retarder solution and a mixture comprising aggregate, pigment, cement and water;
(2) covering the primary backing cloth obtained in the step (1) on the bottom surface in the mold, and pouring the mixture after first standing to obtain water-washed stone slurry;
(3) carrying out second standing on the washed stone slurry obtained in the step (2), demoulding, and removing the primary backing to obtain a washed stone blank;
(4) washing the surface of the original substrate cloth in the washed stone blank obtained in the step (3) to expose aggregate to obtain a washed stone brick; the original base cloth cover refers to the surface of the washing stone blank body, which is contacted with the base cloth.
Preferably, in the step (1), the retarder in the retarder solution comprises the following components in parts by weight: 44-46 parts of sodium tartrate, 44-46 parts of sodium gluconate, 6-9 parts of thixotropic agent and 2-4 parts of defoaming agent.
Preferably, the thixotropic agent is fumed silica; the defoaming agent is an organic silicon defoaming agent or a polyurethane defoaming agent.
Preferably, the aggregate in the step (1) is stone particles; the aggregate comprises one or more of first stone particles, second stone particles and third stone particles; the particle size of the first stone particles is 4-6 mm, the particle size of the second stone particles is 6-9 mm, and the particle size of the third stone particles is 10-15 mm;
the pigment is an alkaline or neutral mineral pigment; the cement is portland cement.
Preferably, the solvent in the retarder solution in the step (1) is water;
when the aggregate is the first stone particle and/or the second stone particle, the mass ratio of the retarder to water in the retarder solution is 1: (7-9);
when the aggregate is the third stone particle, the mass ratio of the retarder to water in the retarder solution is 1: (1-2).
Preferably, the mass ratio of the cement to the aggregate in the step (1) is 1 (1-3); the mass of the pigment is 0.1-0.6% of that of the cement; the water cement ratio of the cement to the water is 0.2-0.3.
Preferably, the first standing time in the step (2) is 1-2 hours, and the first standing temperature is 18-25 ℃; and (4) in the step (3), the second standing time is 7-9 hours, and the second standing temperature is 18-25 ℃.
Preferably, the pressure for flushing in the step (4) is 70-80 Pa.
The invention also provides the washed stone brick prepared by the preparation method in the technical scheme.
The invention also provides a washed stone wall body which is formed by piling the washed stone rolls prepared by the preparation method in the scheme or the washed stone rolls in the technical scheme.
The invention provides a preparation method of washed stone bricks, which comprises the following steps: firstly, providing a base cloth soaked with a retarder solution and a mixture comprising aggregate, pigment, cement and water, then covering the base cloth soaked with the retarder solution on the bottom surface of a mould, pouring the mixture after carrying out first standing to obtain washed stone slurry, then carrying out second standing on the obtained washed stone slurry, demoulding after hardening the surface layer, removing the base cloth to obtain a washed stone blank, and finally washing the original base cloth surface of the obtained washed stone blank to expose the aggregate to obtain the washed stone brick. The retarder can delay the hydration reaction of cement, thereby prolonging the setting time of the mixture, leading the newly mixed mixture to keep plasticity for a longer time, and being convenient for removing the original substrate cloth cover cement by flushing to expose aggregate when the mixture of the surface layer is hardened and the mixture of the bottom layer contacting with the retarder is not completely hardened; the primary backing cloth soaked with the retarder solution needs to be subjected to first standing on the bottom surface of the mold so as to meet the requirement that the retarder solution is fully soaked on the primary backing cloth and is uniformly distributed on the bottom surface of the mold, water volatilizes in the first standing process, the concentration of the retarder is increased, the fluidity is reduced, the primary backing cloth is distributed and better fixed on the bottom surface of the mold, the retarder solution caused by immediate pouring is prevented from being extruded to the edge of the mold by the mixed material, the retarder is enabled to be unevenly distributed to cause uneven retarding effect, and further, the phenomenon that the washed stone wall surface is uneven occurs; under the action that the retarder controls the mixture of the surface of the substrate and the cloth to keep plasticity, the mixture of the surface layer is kept to harden through the second standing, then the conventional 'forward beating' process is not adopted, but the self-created 'backward beating' process is adopted, the reverse side of the washed stone blank body (namely the original substrate and the cloth with the retarder) is directly washed, aggregate with the same depth is exposed through washing, the requirement that the stone on the surface of the washed stone is exposed with the same depth is met, the washed stone brick is obtained at the same time, and the wet operation amount is obviously reduced in the using process.
Experimental results show that the exposure depth of the stone on the surface of the washed stone brick is 1/4-1/2 of the particle size of the stone, the washed stone is attractive in surface, and the aggregate is firmly fixed.
Drawings
FIG. 1 is a diagram of a water-washed stone slurry according to example 1 of the present invention;
FIG. 2 is a diagram of a product of washed stone bricks according to example 1 of the present invention;
FIG. 3 is a diagram of a water-washed stone slurry according to example 2 of the present invention;
FIG. 4 is a diagram of a product of washed stone bricks according to example 2 of the present invention;
FIG. 5 is a diagram of a product of washed stone bricks according to example 3 of the present invention;
FIG. 6 is a diagram of a product of washed stone bricks according to example 4 of the present invention;
FIG. 7 is a diagram of a product of washed stone bricks according to example 5 of the present invention.
Detailed Description
The invention provides a preparation method of washed stone bricks, which comprises the following steps:
(1) providing a primary backing impregnated with a retarder solution and a mixture comprising aggregate, pigment, cement and water;
(2) covering the primary backing cloth obtained in the step (1) on the bottom surface in the mold, and pouring the mixture after first standing to obtain water-washed stone slurry;
(3) carrying out second standing on the washed stone slurry obtained in the step (2), demoulding after the surface layer is hardened, and removing the primary backing to obtain a washed stone blank;
(4) washing the surface of the original substrate cloth in the washed stone blank obtained in the step (3) to expose aggregate to obtain a washed stone brick; the original base cloth cover refers to the surface of the washing stone blank body, which is contacted with the base cloth.
In the present invention, the starting components are commercially available products well known to those skilled in the art unless otherwise specified.
The invention provides a primary backing impregnated with a retarder solution and a mix comprising aggregate, pigment, cement and water.
In the present invention, the aggregate is preferably stone particles. In the present invention, the aggregate preferably includes one or more of the first stone particle, the second stone particle and the third stone particle. In the invention, the particle size of the first stone particles is preferably 4-6 mm, and more preferably 4.2-5.8 mm; the particle size of the second stone particles is preferably 6-9 mm, and more preferably 6.2-8.8 mm; the particle size of the third stone particles is preferably 10-15 mm, and more preferably 10.5-14.5 mm. In the present invention, the stone particles are preferably hard and grindable rocks, in particular dolomite and/or marble.
In the present invention, the pigment is preferably a basic or neutral mineral pigment. In the invention, the color of the pigment is preferably obtained by blending according to the principle of three primary colors; the present invention is preferably formulated using the principles of three primary colors, which are well known to those skilled in the art. In the present invention, the specific choice of the pigment is based on the desired color.
In the present invention, the cement is preferably portland cement, and more preferably ordinary portland cement or portland slag cement. In the invention, the hardness grade of the cement is preferably 42.5-52.5 grade, and most preferably 52.5 grade. The invention preferably adopts cement with consistent variety and hardness grade; in the invention, different varieties of cements with different hardness grades are strictly forbidden to be mixed for use, so that poor stability of the cement is prevented.
In the invention, the mass ratio of the cement to the aggregate in the mixture comprising the aggregate, the pigment, the cement and the water is preferably 1 (1-3); the mass of the pigment is preferably 0.1-0.6% of that of the cement; the water cement ratio of the cement to the water is preferably 0.2 to 0.3, more preferably 0.21 to 0.29, and most preferably 0.26.
The aggregate, the pigment, the cement and the water are preferably mixed to obtain the mixture. The mixing method of the present invention is not particularly limited, and a mixing method known to those skilled in the art may be used.
In the invention, the retarder in the retarder solution preferably comprises the following components in parts by weight: 44-46 parts of sodium tartrate, 44-46 parts of sodium gluconate, 6-9 parts of thixotropic agent and 2-4 parts of defoaming agent.
The retarder preferably comprises 44-46 parts of sodium tartrate by mass, and more preferably 44.5-45.5 parts of sodium tartrate by mass.
Based on the mass parts of the sodium tartrate, the retarder preferably comprises 44-46 parts of sodium gluconate, and more preferably 44.5-45.5 parts of sodium gluconate.
Based on the mass parts of the sodium tartrate, the retarder preferably comprises 6-9 parts of thixotropic agent, and more preferably 6.5-8.5 parts. In the present invention, the thixotropic agent is preferably fumed silica. In the present invention, the fumed silica preferably contains loosely-meshed particles formed of spherical primary particles. In the invention, the particle size of the fumed silica is preferably 7-40 nm, and the specific surface area is preferably 170-230 m2(ii) in terms of/g. In the invention, the fumed silica has a thickening effect, reduces the fluidity of a retarder prepared from sodium tartrate and sodium gluconate, ensures the concentration and dispersion degree of the retarder, further ensures that the retarder has proper rheological property under certain shearing force, and ensures the one-time construction thickness.
Based on the mass parts of the sodium tartrate, the retarder preferably comprises 2-4 parts of defoaming agent, and more preferably 2.5-3.5 parts. In the invention, the defoaming agent is preferably an organic silicon defoaming agent or a polyurethane defoaming agent, and specifically, the organic silicon defoaming agent is a P803 defoaming agent produced by Beijing northern Longhu science and technology Co., Ltd, a polyurethane defoaming agent produced by field chemical industry or an organic silicon defoaming agent produced by Sanqitian chemical industry.
In the present invention, the solvent in the retarder solution is preferably water. In the present invention, when the aggregate is the first stone particle and/or the second stone particle, the mass ratio of the retarder to water in the retarder solution is preferably 1: (7-9); when the aggregate is the third stone particle, the mass ratio of the retarder to water in the retarder solution is preferably 1: (1-2).
The primary backing is not particularly limited in the present invention, and may be any backing known to those skilled in the art. In the present invention, the primary backing is preferably cotton cloth.
The method for infiltrating the retarder solution on the base cloth is not particularly limited, and the conventional infiltration method in the field can be adopted. In the invention, the retarder solution is preferably soaked on the base cloth in a spraying mode; the spraying equipment is not particularly limited in the present invention, and spraying equipment well known to those skilled in the art can be used. In the present invention, the spraying device is preferably a mist-like spray can. In order to improve the uniformity of the distribution of the retarder on the primary backing cloth, the invention further preferably brushes the retarder solution on the surface of the primary backing cloth sprayed with the retarder solution by using a brush after spraying. In the base cloth soaked with the retarder solution, the mass of the retarder solution is preferably 15-25%, more preferably 17-23% and most preferably 20% of the total mass of the base cloth and the soaked retarder solution.
The base cloth is soaked with the retarder solution, and the retarder solution can delay the hydration reaction of cement, so that the setting time of the cement is prolonged, the plasticity is kept for a long time, and when the surface layer mixture is hardened and the mixture of the bottom layer contacting with the retarder is not completely hardened, the original base cloth surface cement is removed through flushing, and the aggregate is exposed. In the invention, the primary base fabric surface refers to the surface of the water-washed stone blank, which is in contact with the primary base fabric.
After the primary backing cloth soaked with the retarder solution and the mixture comprising the aggregate, the pigment, the cement and the water are obtained, the primary backing cloth soaked with the retarder is covered on the bottom surface inside the mould, and the mixture is poured after the primary standing is carried out, so that the washable stone slurry is obtained. The mold is not specially limited, so that the design shape of the washable stone brick is obtained. The covering mode of the present invention is not particularly limited, and may be a covering mode known to those skilled in the art. In the present invention, the retarder-impregnated primary backing fabric preferably completely covers the bottom surface of the interior of the mold. In the present invention, the retarder-impregnated primary backing cloth is preferably laid flat on the bottom surface of the interior of the mold to prevent the stone bricks from being dented by water washing.
In the invention, the first standing time is preferably 1-2 h, and the first standing temperature is preferably 18-25 ℃, more preferably 18-23 ℃, and most preferably 20 ℃. According to the invention, the retarder solution fully infiltrates the base cloth through the first standing, the retarder solution is uniformly distributed on the bottom surface in the mold, and water volatilizes in the first standing process, so that the concentration of the retarder is increased, the fluidity is reduced, the retarder solution is distributed and better fixed on the bottom surface of the mold, and the retarder solution caused by immediate pouring is prevented from being extruded to the edge of the mold by the mixture, so that the retarder is unevenly distributed, the retarding effect is uneven, and the stone exposed depth on the surface of the washed stone brick is inconsistent.
The casting method is not particularly limited, and a casting method known to those skilled in the art can be adopted.
After the washed stone slurry is obtained, the washed stone slurry is subjected to secondary standing and demoulding, and the primary backing is removed to obtain a washed stone blank. In the invention, the second standing time is preferably 7-9 h, and the second standing temperature is preferably 18-25 ℃, more preferably 18-23 ℃, and most preferably 20 ℃. The surface layer of the stone slurry is hardened by washing in the second standing process. The demolding mode is not particularly limited in the invention, and the demolding mode known to those skilled in the art can be adopted.
After demoulding, the invention removes the primary backing to obtain the washing stone blank. The present invention is not particularly limited to the manner of removing the primary backing so that the primary backing can be removed.
After the washed stone blank is obtained, the invention washes the original substrate cloth surface of the washed stone blank to expose the aggregate, and the washed stone brick is obtained. In the present invention, the pressure of the flushing is preferably 70 to 80Pa, more preferably 72 to 78Pa, and most preferably 75 Pa. The method of flushing is not particularly limited in the present invention, and a flushing method known to those skilled in the art may be used. The flushing equipment is not particularly limited in the invention, and flushing equipment well known to those skilled in the art can be adopted; may be embodied as a high pressure water gun. The invention has no special limitation on the washing time, and only needs to wash the cement on the surface of the substrate cloth cleanly and take the exposed depth of the aggregate as the designed depth. The invention preferably observes the exposure depth of the aggregate in real time in the washing processAnd (4) determining the flushing stop time. In the invention, the flushing time is preferably 50-70 min/m2More preferably 55 to 65min/m2. The invention achieves the purpose of controlling the exposed depth of the aggregate by flushing the exposed aggregate and delaying the solidification time of the mixture through the retarder and controlling the flushing process. In the invention, the outmost aggregate exposure depth is preferably 1/4-1/2 of aggregate particle size, and more preferably 1/3.
The invention provides the washed stone brick obtained by the preparation method in the technical scheme. The aggregate exposure depth of the washed stone brick is preferably 1/4-1/2 of the particle size of the aggregate, the aggregate exposure depth is uniform, and the aggregate is firm and is not easy to fall off.
The invention also provides a washed stone wall body which is built by piling the washed bricks in the technical scheme. The present invention does not require any particular manner of stacking, as those skilled in the art will appreciate.
In the invention, the washed stone wall body is preferably a washed stone outer wall, and when the washed stone outer wall is used, the washed stone brick is preferably bonded and stacked with the wall surface without exposed aggregate surface through a binder. The binder of the present invention has no special requirement, and may be cement, which is well known to those skilled in the art.
In order to further illustrate the present invention, the following examples are provided to describe the water washable stone brick, the preparation method thereof and the water washable stone wall body in detail, but they should not be construed as limiting the scope of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
44g of sodium tartrate, 44g of sodium gluconate, 8g of fumed silica, 4g of a P803 antifoaming agent produced by Beijing northern Longhu science and technology Co., Ltd and 800g of water are mixed to prepare a retarder solution.
10kg of cement (42.5 grade in Jidong), 15kg of white marble stones with the diameter of 4-6 mm, 0.03kg of pigment and 2.6kg of water are mixed to obtain a mixture.
The bottom area of the use is 0.8m2And 0.8m2Spraying the obtained retarder on cotton cloth, flatly paving the cotton cloth soaked with the retarder on the bottom surface of a mold to completely cover the bottom surface of the mold, standing for 1.5h, pouring the mixture into the mold, and flatly surfacing to obtain the washable stone slurry as shown in figure 1; and standing for 8.5h, demolding, removing the base cloth to obtain a washed stone blank, washing the surface of the base cloth in the washed stone blank under the pressure of 70Pa, washing by reciprocating the water gun at the moving speed of 50dm/min for 45min to obtain the washed stone brick, wherein the washed stone brick product is shown in figure 2.
Leveling by using a ruler, randomly selecting 20 position points when the exposed heights of the stone grains are on the same plane, measuring the exposed depth of the stone grains by using a caliper, and measuring to obtain 1/3 position points with the exposed depth being the grain size of the stone grains, wherein the exposed depth of the stone grains is 95%, and the exposed depth of the stone grains is uniform and consistent; the washed stone brick is knocked perpendicular to the direction of the washed stone brick under the force of 1000N, stone grains of the washed stone brick do not fall off, and the stone grains are firm and are not easy to fall off.
Example 2
44g of sodium tartrate, 44g of sodium gluconate, 8g of fumed silica, 4g of a P803 antifoaming agent produced by Beijing northern Longhu science and technology Co., Ltd and 800g of water are mixed to prepare a retarder solution.
10kg of cement (42.5 grade in Jidong), 15kg of white marble stones with the particle size of 4-6 mm, no pigment and 2.6kg of water are mixed to obtain a mixture.
The bottom area of the use is 0.8m2And 0.8m2Spraying the obtained retarder on cotton cloth, flatly paving the cotton cloth soaked with the retarder on the bottom surface of a mold to completely cover the bottom surface of the mold, standing for 1.5h, pouring the mixture into the mold, flatly paving the surface, and pouring to obtain washable stone slurry as shown in figure 3; standing for 8.5h, demolding, removing the primary backing cloth to obtain a washed stone blank, and subjecting the washed stone blank to primary backing cloth under 70PaWashing the surface, washing by reciprocating the water gun at a speed of 50dm/min for 45min to obtain the formed washed stone brick, wherein the formed washed stone brick product is shown in fig. 4.
Leveling by using a ruler, randomly selecting 20 position points when the exposed heights of the stone grains are on the same plane, measuring the exposed depth of the stone grains by using a caliper, and measuring to obtain 1/3 position points with the exposed depth being the grain size of the stone grains, wherein the exposed depth of the stone grains is 95%, and the exposed depth of the stone grains is uniform and consistent; the washed stone brick is knocked perpendicular to the direction of the washed stone brick under the force of 1000N, stone grains of the washed stone brick do not fall off, and the stone grains are firm and are not easy to fall off.
Example 3
44g of sodium tartrate, 44g of sodium gluconate, 8g of fumed silica, 4g of a P803 antifoaming agent produced by Beijing northern Longhu scientific and technological Limited company and 100g of water are mixed to prepare a retarder solution.
10kg of cement (42.5 grade in Jidong), 12kg of white marble stones with the diameter of 6-9 mm, 0.03kg of pigment and 2.6kg of water are mixed to obtain a mixture.
The bottom area of the use is 0.8m2And 0.8m2Spraying the obtained retarder on cotton cloth, flatly paving the cotton cloth soaked with the retarder on the bottom surface of a mold to completely cover the bottom surface of the mold, standing for 1.5h, pouring the mixture into the mold, and flatly surfacing; and standing for 8.5h, demolding, removing the base cloth to obtain a washed stone blank, washing the surface of the base cloth in the washed stone blank under the pressure of 70Pa, washing by reciprocating the water gun at the moving speed of 50dm/min for 45min to obtain a formed washed stone brick, wherein the formed washed stone brick product is shown in figure 5.
Leveling by using a ruler, randomly selecting 20 position points when the exposed heights of the stone grains are on the same plane, measuring the exposed depth of the stone grains by using a caliper, and measuring to obtain 1/3 position points with the exposed depth being the grain size of the stone grains, wherein the exposed depth of the stone grains is 95%, and the exposed depth of the stone grains is uniform and consistent; the washed stone brick is knocked perpendicular to the direction of the washed stone brick under the force of 1000N, stone grains of the washed stone brick do not fall off, and the stone grains are firm and are not easy to fall off.
Example 4
44g of sodium tartrate, 44g of sodium gluconate, 8g of fumed silica, 4g of a P803 antifoaming agent produced by Beijing northern Longhu scientific and technological Limited company and 100g of water are mixed to prepare a retarder solution.
10kg of cement (42.5 grade in Jidong), 10kg of white marble stones with the diameter of 10-13 mm, 0.03kg of pigment and 2.6kg of water are mixed to obtain a mixture.
The bottom area of the use is 0.8m2And 0.8m2Spraying the obtained retarder on cotton cloth, flatly paving the cotton cloth soaked with the retarder on the bottom surface of a mold to completely cover the bottom surface of the mold, standing for 1.5h, pouring the mixture into the mold, and flatly surfacing; and standing for 8.5h, demolding, removing the base cloth to obtain a washed stone blank, washing the surface of the base cloth in the washed stone blank under the pressure of 70Pa, washing by reciprocating the water gun at the moving speed of 50dm/min for 50min to obtain a formed washed stone brick, wherein the formed washed stone brick product is shown in figure 6.
Leveling by using a ruler, randomly selecting 20 position points when the exposed heights of the stone grains are on the same plane, measuring the exposed depth of the stone grains by using a caliper, and measuring to obtain 1/3 position points with the exposed depth being the grain size of the stone grains, wherein the exposed depth of the stone grains is 95%, and the exposed depth of the stone grains is uniform and consistent; the washed stone brick is knocked perpendicular to the direction of the washed stone brick under the force of 1000N, stone grains of the washed stone brick do not fall off, and the stone grains are firm and are not easy to fall off.
Example 5
44g of sodium tartrate, 44g of sodium gluconate, 8g of fumed silica, 4g of a P803 antifoaming agent produced by Beijing northern Longhu scientific and technological Limited company and 100g of water are mixed to prepare a retarder solution.
10kg of cement (42.5 grade in Jidong), 15kg of 4-6 mm white marble stones and 12kg of 6-9 mm white marble stones are mixed, and 0.03kg of pigment and 2.6kg of water are mixed to obtain a mixture.
The bottom area of the use is 0.8m2And 0.8m2Spraying the obtained retarder on cotton cloth, flatly laying the cotton cloth soaked with the retarder on the bottom surface of a mold to completely cover the bottom surface of the mold, standing for 1.5h, and dryingPouring the mixture into a mold, and flattening the surface; and standing for 8.5h, demolding, removing the base cloth to obtain a washed stone blank, washing the surface of the base cloth in the washed stone blank under the pressure of 70Pa, washing by reciprocating the water gun at the moving speed of 50dm/min for 50min to obtain a formed washed stone brick, wherein the formed washed stone brick product is shown in figure 7.
Leveling by using a ruler, randomly selecting 20 position points when the exposed heights of the stone grains are on the same plane, measuring the exposed depth of the stone grains by using a caliper, and measuring to obtain 1/3 position points with the exposed depth being the grain size of the stone grains, wherein the exposed depth of the stone grains is 95%, and the exposed depth of the stone grains is uniform and consistent; the washed stone brick is knocked perpendicular to the direction of the washed stone brick under the force of 1000N, stone grains of the washed stone brick do not fall off, and the stone grains are firm and are not easy to fall off.
After the standard maintenance indoor maintenance is carried out for 28d, the washed stone bricks obtained in examples 1-5 are tested for compressive strength and flexural strength according to GB/T50107-2010 concrete strength test and evaluation Standard, and the test results are shown in Table 1.
Table 1 test results of compressive strength and flexural strength of washed stone bricks in examples 1 to 5
As can be seen from the table 1, the washed stone brick prepared by the embodiment of the invention has the compression strength of 47.5-49.5 MPa and the bending strength of 9-9.5 MPa, and can meet the high compression and bending requirements in construction.
The preparation method of the water-washed stone brick can accurately control the exposure depth of the stone on the surface of the water-washed stone brick, has simple process, can produce the water-washed stone brick in a large scale, has low cost and extremely high economic value; the washed stone bricks can be piled as a wall body, and the environment is friendly.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The preparation method of the washed stone brick is characterized by comprising the following steps:
(1) providing a primary backing impregnated with a retarder solution and a mixture comprising aggregate, pigment, cement and water;
(2) covering the primary backing cloth obtained in the step (1) on the bottom surface in the mold, and pouring the mixture after first standing to obtain water-washed stone slurry;
(3) carrying out second standing on the washed stone slurry obtained in the step (2), demoulding, and removing the primary backing to obtain a washed stone blank;
(4) washing the surface of the original substrate cloth in the washed stone blank obtained in the step (3) to expose aggregate to obtain a washed stone brick; the original base cloth cover refers to the surface of the washing stone blank body, which is contacted with the base cloth;
in the step (1), the retarder in the retarder solution consists of the following components in parts by mass: 44-46 parts of sodium tartrate, 44-46 parts of sodium gluconate, 6-9 parts of thixotropic agent and 2-4 parts of defoaming agent;
the thixotropic agent is fumed silica; the defoaming agent is an organic silicon defoaming agent or a polyurethane defoaming agent;
the aggregate in the step (1) is stone particles; the aggregate comprises one or more of first stone particles, second stone particles and third stone particles; the particle size of the first stone particles is 4-6 mm, the particle size of the second stone particles is 6-9 mm, and the particle size of the third stone particles is 10-15 mm; the solvent in the retarder solution in the step (1) is water;
when the aggregate is the first stone particle and/or the second stone particle, the mass ratio of the retarder to water in the retarder solution is 1: (7-9);
when the aggregate is the third stone particle, the mass ratio of the retarder to water in the retarder solution is 1: (1-2);
the first standing time in the step (2) is 1-2 hours, and the first standing temperature is 18-25 ℃; and (4) in the step (3), the second standing time is 7-9 hours, and the second standing temperature is 18-25 ℃.
2. The method of claim 1, wherein the pigment is a basic or neutral mineral pigment; the cement is portland cement.
3. The method according to claim 1 or 2, wherein the mass ratio of the cement to the aggregate in the step (1) is 1: (1-3); the mass of the pigment is 0.1-0.6% of that of the cement; the water cement ratio of the cement to the water is 0.2-0.3.
4. A water-washed stone tile prepared by the preparation method of any one of claims 1 to 3.
5. A washed stone wall, characterized in that the washed stone brick prepared by the preparation method of any one of claims 1 to 3 or the washed stone brick of claim 4 is piled.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4748788A (en) * | 1987-07-01 | 1988-06-07 | Shaw Ronald D | Surface seeded exposed aggregate concrete and method of producing same |
| CN102704643A (en) * | 2012-06-20 | 2012-10-03 | 中国十七冶集团有限公司 | Manufacturing method for rinsing exposed aggregate colorful concrete external-hung wallboard |
| CN202644821U (en) * | 2012-06-20 | 2013-01-02 | 中国十七冶集团有限公司 | Washing exposed aggregate color concrete externally-hung wallboard |
| CN104446642A (en) * | 2014-12-03 | 2015-03-25 | 中国二十二冶集团有限公司 | Smeared concrete surface retarder and application method thereof |
| CN107914332A (en) * | 2016-10-10 | 2018-04-17 | 北京市建筑工程研究院有限责任公司 | A kind of prefabricated exposed aggregate finish wallboard and preparation method thereof |
| CN109020621A (en) * | 2018-08-27 | 2018-12-18 | 四川聚力建材科技有限公司 | A kind of cleaning agent cleaned for undisguisedly expecting pervious concrete |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1053445A (en) * | 1996-08-06 | 1998-02-24 | Daicel Huels Ltd | Cement hardening retarder and cement hardening retarding sheet |
| CN106631155B (en) * | 2016-12-29 | 2019-08-16 | 中民筑友科技投资有限公司 | Concrete coagulant and its preparation method and application |
| CN107178196A (en) * | 2017-06-16 | 2017-09-19 | 深圳市纳路特科技有限公司 | A kind of preparation technology of terrazzo floor |
-
2019
- 2019-01-15 CN CN201910036171.2A patent/CN109503091B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4748788A (en) * | 1987-07-01 | 1988-06-07 | Shaw Ronald D | Surface seeded exposed aggregate concrete and method of producing same |
| CN102704643A (en) * | 2012-06-20 | 2012-10-03 | 中国十七冶集团有限公司 | Manufacturing method for rinsing exposed aggregate colorful concrete external-hung wallboard |
| CN202644821U (en) * | 2012-06-20 | 2013-01-02 | 中国十七冶集团有限公司 | Washing exposed aggregate color concrete externally-hung wallboard |
| CN104446642A (en) * | 2014-12-03 | 2015-03-25 | 中国二十二冶集团有限公司 | Smeared concrete surface retarder and application method thereof |
| CN107914332A (en) * | 2016-10-10 | 2018-04-17 | 北京市建筑工程研究院有限责任公司 | A kind of prefabricated exposed aggregate finish wallboard and preparation method thereof |
| CN109020621A (en) * | 2018-08-27 | 2018-12-18 | 四川聚力建材科技有限公司 | A kind of cleaning agent cleaned for undisguisedly expecting pervious concrete |
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