CN110450264B - Preparation method of image concrete - Google Patents
Preparation method of image concrete Download PDFInfo
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- CN110450264B CN110450264B CN201910626924.5A CN201910626924A CN110450264B CN 110450264 B CN110450264 B CN 110450264B CN 201910626924 A CN201910626924 A CN 201910626924A CN 110450264 B CN110450264 B CN 110450264B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/001—Applying decorations on shaped articles, e.g. by painting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/36—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article
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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
-
- 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
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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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
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
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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
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
-
- 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
- C04B2111/00008—Obtaining or using nanotechnology related materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a preparation method of image concrete, which comprises the following steps: s1, preparing precast concrete for later use, bonding the transfer printing mold with the pattern on the cleaned steel mold, and keeping the side with the pattern away from the steel mold for later use; s2, paving the mold on the ground, pouring the precast concrete prepared in the step 1 into the mold, spraying luminous powder after 30-40min, pressing the steel mold adhered with the transfer printing film in the step 1 on the precast concrete, and placing the side, with the pattern, of the transfer printing film on the precast concrete to obtain a concrete member; and S3, separating the steel die on the concrete member from the concrete pre-member in the step S2, then washing the contact side of the concrete pre-member and the transfer film by high-pressure water, and spraying a surface protective agent after curing for 1-2 days to obtain the image concrete. The invention has the advantages of being used for plane imaging and further playing a role in marking.
Description
Technical Field
The invention relates to the field of buildings, in particular to a preparation method of image concrete.
Background
Concrete is a general term for engineering composite materials in which aggregate is cemented into a whole by a cementing material. The term concrete generally refers to cement concrete which is obtained by using cement as a cementing material, using sand and stone as aggregates, mixing the aggregates with water and additives according to a certain proportion and stirring, also called as common concrete, and is generally used in the field of building engineering. However, with the improvement of the living standard of people, image concrete begins to appear on the market at present, the image concrete forms images on the surfaces of concrete members by using the plasticity and the solidification characteristic of the concrete through media such as a mold, an imaging film and the like, the image concrete combines buildings and cultural arts, the image concrete can be applied to building facade decoration, the integration of structure and decoration is realized, secondary decoration is omitted, the image concrete is long in safety life, and the image concrete is favored by designers.
However, the image concrete in the current market is only a research on imaging of the image concrete, and basically, the image concrete can only be applied to building facades or wall surfaces, reports and researches on applying the image concrete to planes are less, and the image concrete can play a role in marking without continuously brushing marking lines in the later period when being applied to the planes.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a preparation method of image concrete, which has the advantages of being used for plane imaging and further playing a marking role.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of image concrete comprises the following steps:
s1, preparing precast concrete for later use, bonding the transfer printing mold with the pattern on the cleaned steel mold, and keeping the side with the pattern away from the steel mold for later use;
s2, paving the mold on the ground, pouring the precast concrete prepared in the step 1 into the mold, spraying luminous powder after 30-40min, pressing the steel mold adhered with the transfer printing film in the step 1 on the precast concrete, and placing the side, with the pattern, of the transfer printing film on the precast concrete to obtain a concrete member;
and S3, separating the steel die on the concrete member from the concrete prefabricated member in the step S2, then washing the contact side of the concrete member and the transfer film by high-pressure water, and spraying a surface protective agent after curing for 1-2 days to obtain the image concrete.
Through adopting above-mentioned technical scheme, through adopting above-mentioned method, realize pouring on the plane and obtain the image concrete, and still directly take away the steel mould on the concrete member after pouring the completion can, directly be used for the image concrete on the planar road, easy operation is convenient, the effect of luminous agent makes the image of image concrete can also the colour development, thereby play obvious sign effect, especially if the pattern on the steel mould is the road sign line, then the image concrete surface that makes is the effect of road sign, especially in evening, under the effect of luminescent powder, the sign effect is more obvious. For the remaining patterns, the color of the patterns can also be changed by the action of the luminescent agent by the method of the present invention, or the patterns can also be viewed at night.
Further, the luminescent agent is prepared from the following raw materials in parts by weight: 15-25 parts of luminescent powder, 25-30 parts of toner, 5-10 parts of hydrogen peroxide, 5-10 parts of 3-aminophthalide, 3-5 parts of 4-dimethylaminopyridine, 15-20 parts of sodium chloride and 5-15 parts of aliphatic amine curing agent.
By adopting the technical scheme, the 3-aminophthalic hydrazide and the 4-dimethylaminopyridine enhance the coloring of the pattern, the addition of the sodium chloride can prevent the color fading, and the addition of the aliphatic amine curing agent not only plays a role in curing, but also has good color retention capability.
Further, the aliphatic amine curing agent comprises ethylenediamine and diethylenetriamine in a mass ratio of 1:1.
Further, the preparation method of the luminescent agent comprises the following steps: mixing luminescent powder and toner, adding hydrogen peroxide, 3-aminophthalic hydrazide and 4-dimethylaminopyridine, stirring, adding 65-80 ℃ water, adding sodium chloride, stirring, cooling to 40-45 ℃, adding an aliphatic amine curing agent, wherein the mass ratio of the added water to the added sodium chloride is 3: 1.
Further, the preparation method of the surface protective agent comprises the following steps: heating 40-60 parts of acrylic resin, 25-40 parts of epoxy resin and 50-60 parts of water to 65-80 ℃, stirring for 20-30min, cooling to 40-45 ℃, adding 15-30 parts of polyamide curing agent, and stirring for 40-50min to obtain the acrylic resin/epoxy resin composite material.
By adopting the technical scheme, the concrete has excellent color retention and color development performance due to the addition of the acrylic resin, the image color development effect of the image concrete is better, and the acrylic resin and the epoxy resin are shared to form a net structure, so that the compressive capacity of the image concrete is better. The proportion of the polyamide curing agent and the epoxy resin is wide, and the finally poured image concrete has high impact strength and good water resistance. The surface protective agent is finally sprayed on the concrete member, so that the color-preserving performance is excellent, and the formed film can also play a certain role in protecting the concrete member and reduce the abrasion to the color.
Further, the precast concrete is prepared from the following raw materials in parts by weight:
300 parts of 200-fluid cement, 500 parts of crushed stone, 250 parts of sand, 80-150 parts of fly ash, 80-120 parts of water, 40-60 parts of anti-freezing material, 5-10 parts of water reducing agent, 10-20 parts of talcum powder, 15-25 parts of polypropylene fiber and 20-30 parts of nano filler.
By adopting the technical scheme, the precast concrete prepared by the invention has high compactness and strong compressive capacity, and the addition of the acrylic fiber improves the freeze-thaw resistance, permeability resistance, impact resistance, folding resistance and shrinkage resistance of the concrete, so that the problems of collapse and pattern deformation cannot occur in the use process of the image concrete. The talcum powder has good covering power and adsorption capacity, and the addition of talcum powder can strengthen the pressure strength of image concrete on the one hand, reduces pattern deformation, increases the stability of pattern shape, and can make the steel mould press on precast concrete, and the pattern formation of precast concrete is quicker.
Further, the anti-freezing material comprises the following components in percentage by mass: 2: 3 ethylene glycol, calcium nitrite and rosin powder.
By adopting the technical scheme, the antifreezing material can provide the antifreezing performance of the image concrete, and the rosin powder is used as the air entraining agent to be matched with the ethylene glycol, so that the effect of the image concrete is better.
Further, the nano filler comprises nano silicon dioxide and nano titanium dioxide in a mass ratio of 1: 1-2.
By adopting the technical scheme, the self-healing capacity of the product can be improved by adding the nano silicon dioxide and the nano titanium dioxide, the microstructure in the concrete is changed, and the compressive strength of the prepared image concrete is improved.
Further, the fly ash is FI-grade fly ash; the sand is water-washed river sand with fineness modulus of 2.2-1.3; the crushed stone is crushed stone with continuous grain size of 5-20 mm; the cement is 42.5R portland cement; the length of the polypropylene fiber is 3-12 mm; the water reducing agent is selected from a polycarboxylic acid water reducing agent or a naphthalene water reducing agent or the mixture of the polycarboxylic acid water reducing agent and the naphthalene water reducing agent in any proportion.
Further, the preparation method of the precast concrete comprises the following steps: stirring cement, fly ash, broken stone, sand and nano filler for 40-50min, then adding polypropylene fiber, stirring for 15-20min, adding an anti-freezing material and talcum powder, adding a water reducing agent and water, stirring for 30-40, then adding acrylic resin, epoxy resin and polyamide curing agent, and stirring for 60 min.
By adopting the technical scheme, the crack resistance of the image concrete is greatly enhanced by adding the polypropylene fibers.
In conclusion, the invention has the following beneficial effects:
1. according to the method, the steel die adhered with the transfer die is placed on the precast concrete, so that the precast concrete is imaged, the steel die is directly taken away after the pouring is finished, the image concrete is poured on a plane, and the image concrete can be directly used on a plane road;
2. the spraying of the acrylic resin, the epoxy resin and the polyamide curing agent in the invention ensures that the image color development effect of the image concrete is better, and the prepared image concrete has stronger compressive strength, impact strength and excellent water resistance while having good color retention performance;
3. the precast concrete prepared by the invention has high compactness and strong compressive capacity, and the addition of the acrylic fiber improves the freeze-thaw resistance, permeability resistance, impact resistance, folding resistance and shrinkage resistance of the concrete, so that the problems of collapse and pattern deformation can not occur in the use process of the image concrete.
Detailed Description
The present invention will be described in further detail with reference to examples.
The following starting materials are all commercially available.
The luminescent powder is purchased from Shenzhen Xinxing source luminescence science and technology Limited company, the brand is Xinxing source, and the product name is long-acting luminescent powder;
the polyamide curing agent is purchased from Shandong De source epoxy technology Co., Ltd, and has the model number DJ 650;
the toner is prepared from Daxing chemical company of deep-certified market with Daxing brand;
the talcum powder is purchased from processing factories of huge rock mineral products in Lingshou county, and the fineness of the talcum powder is 800 meshes;
the acrylic resin is purchased from the company of the Qi detailed chemical products in the Erqi district of Zhengzhou city, and the brand is Qi detailed;
the epoxy resin is purchased from Henan Hui resin Limited, the brand is Barlin petrochemical, the model is CYDW-100, and the epoxy equivalent is 170-220;
the naphthalene water reducing agent is purchased from Shandong \37075andCity Brilliant new building materials science and technology Limited, and the solid content is more than or equal to 92 percent;
the polycarboxylate superplasticizer is purchased from Shandong \37075anda city brilliant new building material science and technology limited company, and has a solid content of 20 percent;
the crushed stone is crushed stone with continuous grain size of 5-20mm, and is purchased from Western river crushed stone factories in Mitsun county of Beijing city;
the sand is water-washed river sand with fineness modulus of 2.2-1.3, and is purchased from Hubei Laishuixin building materials Co., Ltd;
the fly ash is FI-grade fly ash, is purchased from Guangmeng mineral product processing factory in Lingshu county, and has a brand name of Guangmeng and a model number of 200-;
the polypropylene fiber is purchased from the first branch of the Beijing Pengyang novel building materials Co., Ltd, and the brand is Beijing Pengyang;
the cement is 42.5R Portland cement.
Preparation examples of raw materials
Preparation examples 1 to 5 of luminescent agent
Preparation example 1
A preparation method of a luminescent agent comprises the following steps:
mixing 20kg of luminescent powder and 28kg of toner, adding 8kg of hydrogen peroxide, 8kg of 3-aminophthalic hydrazide and 4kg of 4-dimethylaminopyridine, stirring, adding 54kg of 70 ℃ water, adding 18kg of sodium chloride, stirring, cooling to 42 ℃, adding 10kg of aliphatic amine curing agent, and stirring to obtain the fluorescent powder.
Wherein the aliphatic amine curing agent comprises ethylenediamine and diethylenetriamine in a mass ratio of 1:1.
Preparation example 2
A luminescent agent was prepared according to the method of preparation example 1, except that,
mixing 15kg of luminescent powder and 25kg of toner, then adding 5kg of hydrogen peroxide, 5kg of 3-aminophthalide and 3kg of 4-dimethylaminopyridine, stirring, adding 45kg of 70 ℃ water, adding 15kg of sodium chloride, stirring and cooling to 42 ℃, adding 5kg of aliphatic amine curing agent, and stirring to obtain the fluorescent powder.
Preparation example 3
A luminescent agent was prepared according to the method of preparation example 1, except that,
mixing 20kg of luminescent powder and 30kg of toner, then adding 10kg of hydrogen peroxide, 10kg of 3-aminophthalic hydrazide and 5kg of 4-dimethylaminopyridine, stirring, adding 60kg of 70 ℃ water, adding 20kg of sodium chloride, stirring and cooling to 42 ℃, adding 15kg of aliphatic amine curing agent, and stirring to obtain the fluorescent powder.
Preparation example 4
A preparation method of a luminescent agent is carried out according to the method in preparation example 1, and is characterized by comprising the following steps:
mixing 20kg of luminescent powder and 28kg of toner, adding 8kg of hydrogen peroxide, 8kg of 3-aminophthalic hydrazide and 4kg of 4-dimethylaminopyridine, stirring, adding 54kg of 65 ℃ water, adding 18kg of sodium chloride, stirring, cooling to 40 ℃, adding 10kg of aliphatic amine curing agent, and stirring to obtain the fluorescent powder.
Wherein the aliphatic amine curing agent comprises ethylenediamine and diethylenetriamine in a mass ratio of 1:1.
Preparation example 5
A preparation method of a luminescent agent is carried out according to the method in preparation example 1, and is characterized by comprising the following steps:
mixing 20kg of luminescent powder and 28kg of toner, adding 8kg of hydrogen peroxide, 8kg of 3-aminophthalic hydrazide and 4kg of 4-dimethylaminopyridine, stirring, adding 54kg of 80 ℃ water, adding 18kg of sodium chloride, stirring, cooling to 45 ℃, adding 10kg of aliphatic amine curing agent, and stirring to obtain the fluorescent powder.
Preparation examples 6 to 10 of surface protecting agent
Preparation example 6
A preparation method of a surface protective agent comprises the following steps:
heating 50kg of acrylic resin, 32kg of epoxy resin and 55kg of water to 70 ℃, stirring for 25min, cooling to 42 ℃, adding 24kg of polyamide curing agent, and stirring for 45min to obtain the polyamide curing agent.
Preparation example 7
A preparation method of a surface protective agent comprises the following steps:
heating 40kg of acrylic resin, 25kg of epoxy resin and 50kg of water to 70 ℃, stirring for 25min, cooling to 42 ℃, adding 15kg of polyamide curing agent, and stirring for 45min to obtain the epoxy resin.
Preparation example 8
A preparation method of a surface protective agent comprises the following steps:
heating 60kg of acrylic resin, 40kg of epoxy resin and 60kg of water to 70 ℃, stirring for 25min, cooling to 42 ℃, adding 30kg of polyamide curing agent, and stirring for 45min to obtain the epoxy resin.
Preparation example 9
A preparation method of a surface protective agent comprises the following steps:
heating 50kg of acrylic resin, 32kg of epoxy resin and 55kg of water to 65 ℃, stirring for 20min, cooling to 40 ℃, adding 24kg of polyamide curing agent, and stirring for 40min to obtain the acrylic resin/epoxy resin composite material.
Preparation example 10
A preparation method of a surface protective agent comprises the following steps:
heating 50kg of acrylic resin, 32kg of epoxy resin and 55kg of water to 80 ℃, stirring for 30min, cooling to 45 ℃, adding 24kg of polyamide curing agent, and stirring for 50min to obtain the epoxy resin.
Preparation examples 11 to 15 of precast concrete
Preparation example 11
A preparation method of precast concrete comprises the following steps:
250kg of cement, 110kg of fly ash, 100kg of broken stone, 200kg of sand and 25kg of nano filler are stirred for 45min, then 20kg of polypropylene fiber is added, the stirring is carried out for 18min, 50kg of antifreezing material and 15kg of talcum powder are added, 8kg of water reducing agent and 100kg of water are added, 50kg of acrylic resin, 30kg of epoxy resin and 20kg of polyamide curing agent are added after the stirring is carried out for 35, and the stirring is carried out for 60 min.
Wherein the antifreezing material comprises the following components in percentage by mass: 2: 3 ethylene glycol, calcium nitrite and rosin powder;
the nano filler comprises nano silicon dioxide and nano titanium dioxide in a mass ratio of 1: 1.5;
the water reducing agent comprises a naphthalene water reducing agent and a polycarboxylic acid water reducing agent in a mass ratio of 1: 1;
the polypropylene fibers had a length of 6 mm.
Preparation example 12
A preparation method of precast concrete is carried out according to the method in preparation example 11, and is characterized by comprising the following steps:
200kg of cement, 80kg of fly ash, 450kg of broken stone, 150kg of sand and 20kg of nano filler are stirred for 45min, then 15kg of polypropylene fiber is added, the stirring is carried out for 18min, 40kg of antifreezing material and 10kg of talcum powder are added, 5kg of water reducing agent and 80kg of water are added, 40kg of acrylic resin, 25kg of epoxy resin and 15kg of polyamide curing agent are added after the stirring is carried out for 35, and the stirring is carried out for 60 min.
Preparation example 13
A preparation method of precast concrete is carried out according to the method in preparation example 11, and is characterized by comprising the following steps:
stirring 300kg of cement, 150kg of fly ash, 500kg of broken stone, 250kg of sand and 30kg of nano filler for 45min, then adding 25kg of polypropylene fiber, stirring for 18min, adding 60kg of antifreezing material and 20kg of talcum powder, adding 10kg of water reducing agent and 120kg of water, stirring for 35, adding 60kg of acrylic resin, 40kg of epoxy resin and 30kg of polyamide curing agent, and stirring for 60 min.
Preparation example 14
A preparation method of precast concrete is carried out according to the method in preparation example 11, and is characterized by comprising the following steps:
stirring 250kg of cement, 110kg of fly ash, 100kg of broken stone, 200kg of sand and 25kg of nano filler for 40min, then adding 20kg of polypropylene fiber, stirring for 15min, adding 50kg of antifreezing material and 15kg of talcum powder, adding 8kg of water reducing agent and 100kg of water, stirring for 30, adding 50kg of acrylic resin, 30kg of epoxy resin and 20kg of polyamide curing agent, and stirring for 60 min.
Wherein the antifreezing material comprises the following components in percentage by mass: 2: 3 ethylene glycol, calcium nitrite and rosin powder;
the nano filler comprises nano silicon dioxide and nano titanium dioxide in a mass ratio of 1: 1;
the water reducing agent is a polycarboxylic acid water reducing agent;
the polypropylene fibers had a length of 3 mm.
Preparation example 15
A preparation method of precast concrete is carried out according to the method in preparation example 11, and is characterized by comprising the following steps:
250kg of cement, 110kg of fly ash, 100kg of broken stone, 200kg of sand and 25kg of nano filler are stirred for 40-50min, then 20kg of polypropylene fiber is added, the stirring is carried out for 15-20min, 50kg of antifreezing material and 15kg of talcum powder are added, 8kg of water reducing agent and 100kg of water are added, the stirring is carried out for 30-40, 50kg of acrylic resin, 30kg of epoxy resin and 20kg of polyamide curing agent are added, and the stirring is carried out for 60 min.
Wherein the antifreezing material comprises the following components in percentage by mass: 2: 3 ethylene glycol, calcium nitrite and rosin powder;
the nano filler comprises nano silicon dioxide and nano titanium dioxide in a mass ratio of 1: 2;
the water reducing agent is a naphthalene water reducing agent;
the polypropylene fibers had a length of 12 mm.
Example 1
A preparation method of image concrete comprises the following steps:
s1, preparing precast concrete for later use according to the method in the preparation example 11, bonding a transfer printing die with a pattern on the cleaned steel die, wherein the side with the pattern is away from the steel die for later use, and the transfer printing die is the prior art and is not detailed herein;
s2, paving a mold on the ground, wherein the mold can be selected according to the personnel in the field, so that when concrete is poured, the concrete can be well fixed, the size is not limited, pouring the precast concrete prepared in the preparation example 11 in the step 1 into the mold, after 35min, spraying the luminescent powder prepared in the preparation example 1, pressing a steel mold adhered with a transfer printing film in the step 1 on the precast concrete, and placing the transfer printing film on the precast concrete at the side with the pattern for 30h to obtain a concrete member;
and S3, separating the steel die on the concrete member from the concrete pre-member in the step S2, then washing the contact side of the concrete pre-member and the transfer film by high-pressure water, curing for 1 day according to a conventional method, and spraying the surface protective agent prepared in the preparation example 6 to obtain the image concrete.
Example 2
A preparation method of image concrete comprises the following steps:
s1, preparing precast concrete for later use according to the method in the preparation example 11, and bonding the transfer printing mold with the pattern on the cleaned steel mold, wherein the side with the pattern is far away from the steel mold for later use;
s2, paving a mold on the ground, pouring the precast concrete prepared in the preparation example 11 in the step 1 into the mold, spraying the luminescent powder prepared in the preparation example 1 after 30min, pressing the steel mold adhered with the transfer printing film in the step 1 on the precast concrete, and standing for 24h to obtain a concrete member, wherein the pattern side of the transfer printing film is positioned on the precast concrete;
and S3, separating the steel die on the concrete member from the concrete pre-member in the step S2, then washing the contact side of the concrete pre-member and the transfer film by high-pressure water, curing for 1 day, and spraying the surface protective agent prepared in the preparation example 6 to obtain the image concrete.
Example 3
A preparation method of image concrete comprises the following steps:
s1, preparing precast concrete for later use according to the method in the preparation example 11, and bonding the transfer printing mold with the pattern on the cleaned steel mold, wherein the side with the pattern is far away from the steel mold for later use;
s2, paving a mold on the ground, pouring the precast concrete prepared in the preparation example 11 in the step 1 into the mold, spraying the luminescent powder prepared in the preparation example 1 after 40min, pressing a steel mold adhered with the transfer printing film in the step 1 on the precast concrete, and standing for 36h to obtain a concrete member, wherein the pattern side of the transfer printing film is positioned on the precast concrete;
and S3, separating the steel die on the concrete member from the concrete pre-member in the step S2, then washing the contact side of the concrete pre-member and the transfer film by high-pressure water, curing for 2 days, and spraying the surface protective agent prepared in the preparation example 6 to obtain the image concrete.
Example 4
An image concrete was prepared by following the procedure of example 1 except that the precast concrete in steps S1 and S2 was prepared as in preparation example 12, the luminescent powder was prepared as in preparation example 2, and the surface protecting agent was prepared as in preparation example 7.
Example 5
An image concrete was prepared by following the procedure of example 1 except that the precast concrete in steps S1 and S2 was prepared as in preparation example 13, the luminescent powder was prepared as in preparation example 3, and the surface protecting agent was prepared as in preparation example 8.
Example 6
An image concrete was prepared by following the procedure of example 1 except that the precast concrete in steps S1 and S2 was prepared as in preparation 14, the luminescent powder was prepared as in preparation 4, and the surface protecting agent was prepared as in preparation 9.
Example 7
An image concrete was prepared by following the procedure of example 1 except that the precast concrete in steps S1 and S2 was prepared as in preparation example 15, the luminescent powder was prepared as in preparation example 5, and the surface protecting agent was prepared as in preparation example 9.
The image concrete images prepared in examples 1 to 7 were clear, and when the zebra pattern was selected on the transfer mold, the color of the pattern on the prepared image concrete was clear and distinct, and the 56d compressive strength of the image concrete prepared in examples 1 to 7 was measured to be 45 to 55MPa, which was high in compressive strength, and the image of the image concrete did not deform within 120 days, and the pattern was not substantially damaged or discolored.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (7)
1. The preparation method of the image concrete is characterized by comprising the following steps of:
s1, preparing precast concrete for later use, bonding the transfer printing mold with the pattern on the cleaned steel mold, and keeping the side with the pattern away from the steel mold for later use;
s2, paving the mold on the ground, pouring the precast concrete prepared in the step 1 into the mold, spraying a luminous agent after 30-40min, pressing the steel mold adhered with the transfer printing film in the step 1 on the precast concrete, and placing the side, with the pattern, of the transfer printing film on the precast concrete to obtain a concrete member;
s3, separating the steel die on the concrete member from the concrete pre-member in the step S2, then washing the contact side of the concrete pre-member and the transfer film by high-pressure water, and spraying a surface protective agent after curing for 1-2 days to obtain image concrete;
the luminescent agent is prepared from the following raw materials in parts by weight: 15-25 parts of luminescent powder, 25-30 parts of toner, 5-10 parts of hydrogen peroxide, 5-10 parts of 3-aminophthalide, 3-5 parts of 4-dimethylaminopyridine, 15-20 parts of sodium chloride and 5-15 parts of aliphatic amine curing agent; the aliphatic amine curing agent comprises ethylenediamine and diethylenetriamine in a mass ratio of 1: 1;
the preparation method of the luminescent agent comprises the following steps: mixing luminescent powder and toner, adding hydrogen peroxide, 3-aminophthalic hydrazide and 4-dimethylaminopyridine, stirring, adding 65-80 ℃ water, adding sodium chloride, stirring, cooling to 40-45 ℃, adding an aliphatic amine curing agent, wherein the mass ratio of the added water to the added sodium chloride is 3: 1.
2. The method for preparing image concrete according to claim 1, wherein the method for preparing the surface protective agent comprises the following steps: heating 40-60 parts of acrylic resin, 25-40 parts of epoxy resin and 50-60 parts of water to 65-80 ℃, stirring for 20-30min, cooling to 40-45 ℃, adding 15-30 parts of polyamide curing agent, and stirring for 40-50min to obtain the acrylic resin/epoxy resin composite material.
3. The method for preparing image concrete according to claim 1, wherein the precast concrete is prepared from the following raw materials in parts by weight: 300 parts of 200-fluid cement, 500 parts of crushed stone, 250 parts of sand, 80-150 parts of fly ash, 80-120 parts of water, 40-60 parts of anti-freezing material, 5-10 parts of water reducing agent, 10-20 parts of talcum powder, 15-25 parts of polypropylene fiber and 20-30 parts of nano filler.
4. The method for preparing image concrete according to claim 3, wherein the antifreezing material comprises the following components in a mass ratio of 1: 2: 3 ethylene glycol, calcium nitrite and rosin powder.
5. The method for preparing image concrete according to claim 3, wherein the nano filler comprises nano silica and nano titanium dioxide in a mass ratio of 1: 1-2.
6. The method for preparing image concrete according to claim 3, wherein the fly ash is FI-grade fly ash; the sand is water-washed river sand with fineness modulus of 2.2-1.3; the crushed stone is crushed stone with continuous grain size of 5-20 mm; the cement is 42.5R portland cement; the length of the polypropylene fiber is 3-12 mm; the water reducing agent is selected from a polycarboxylic acid water reducing agent or a naphthalene water reducing agent or the mixture of the polycarboxylic acid water reducing agent and the naphthalene water reducing agent in any proportion.
7. The method for preparing image concrete according to claim 3, wherein the method for preparing the precast concrete is as follows: stirring cement, fly ash, broken stone, sand and nano filler for 40-50min, then adding polypropylene fiber, stirring for 15-20min, adding an antifreezing material and talcum powder, adding a water reducing agent and water, stirring for 30-40min, then adding acrylic resin, epoxy resin and polyamide curing agent, and stirring for 60 min.
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