CN114380554A - Preparation method of compression-resistant anti-cracking colored luminescent concrete - Google Patents
Preparation method of compression-resistant anti-cracking colored luminescent concrete Download PDFInfo
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- CN114380554A CN114380554A CN202210050648.4A CN202210050648A CN114380554A CN 114380554 A CN114380554 A CN 114380554A CN 202210050648 A CN202210050648 A CN 202210050648A CN 114380554 A CN114380554 A CN 114380554A
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- 239000004567 concrete Substances 0.000 title claims abstract description 138
- 230000006835 compression Effects 0.000 title claims abstract description 20
- 238000007906 compression Methods 0.000 title claims abstract description 20
- 238000005336 cracking Methods 0.000 title claims abstract description 11
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 55
- 239000000835 fiber Substances 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000004568 cement Substances 0.000 claims abstract description 31
- 239000003365 glass fiber Substances 0.000 claims abstract description 28
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 26
- 239000010436 fluorite Substances 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 26
- 239000011230 binding agent Substances 0.000 claims abstract description 25
- 238000002156 mixing Methods 0.000 claims abstract description 22
- 239000000049 pigment Substances 0.000 claims abstract description 17
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 16
- 239000011398 Portland cement Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 9
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003822 epoxy resin Substances 0.000 claims abstract description 8
- 229910052901 montmorillonite Inorganic materials 0.000 claims abstract description 8
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 39
- 239000010959 steel Substances 0.000 claims description 39
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 8
- 230000001376 precipitating effect Effects 0.000 claims description 6
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 5
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 claims description 5
- 229910000423 chromium oxide Inorganic materials 0.000 claims description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 5
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 claims description 5
- 229920001732 Lignosulfonate Polymers 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 230000032683 aging Effects 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 238000005452 bending Methods 0.000 description 15
- 239000004593 Epoxy Substances 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000004566 building material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
-
- 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
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/807—Luminescent or fluorescent 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/82—Coloured 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
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
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- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a preparation method of compression-resistant anti-cracking colored luminescent concrete, relating to the technical field of concrete; the problems of low compression resistance, crack resistance and corrosion resistance of the luminescent concrete are solved; the method specifically comprises the following steps: pouring portland cement, pigment, coarse aggregate, fine aggregate and metal fiber into a stirrer together for stirring and mixing to obtain a cement mixture, pouring a water reducing agent and water into the cement mixture, and continuously stirring, wherein the mass ratio of the water reducing agent to the cement mixture is 2-3%, and the mass ratio of the water to the cement mixture is 35-45%; the binder, fluorite and glass fiber are pre-stirred. The invention effectively improves the integral corrosion resistance and ageing resistance of the concrete by adding the binder made of the alumina powder, the montmorillonite and the epoxy resin into the concrete, and simultaneously, the added alumina powder can effectively improve the hardness of the epoxy resin, thereby further improving the integral strength of the concrete.
Description
Technical Field
The invention relates to the technical field of concrete, in particular to a preparation method of compression-resistant and crack-resistant colored luminescent concrete.
Background
Ordinary cement concrete is the most important building material in the world today, not only can be used as a building material, but also has certain decorative effect. Because the concrete has good plasticity, the concrete can be poured into various complex shapes, and is mainly used for pouring road surfaces, bridges, wharfs and the like; in urban road engineering, the method is mainly used for urban roads, sculptures and other artworks. However, the most defects of the common cement concrete are that the appearance color is monotonous, dull and stiff, and people feel oppressed. Therefore, the application of colored concrete is receiving general attention.
Through retrieval, the patent with the Chinese patent application number of CN201910523743.X discloses a preparation method of colored concrete, which comprises the following steps: sintering 200-250 parts by weight of white portland cement raw material and 10-15 parts by weight of pigment into colored portland cement clinker; the burnt color portland cement clinker is added with 20-25 parts by weight of gypsum and ground to form the color portland cement, but in the technical scheme, substances capable of effectively improving the compression resistance and crack resistance of the concrete are not added into the concrete, so that the problems of low compression resistance, crack resistance and corrosion resistance of the concrete exist.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a preparation method of compression-resistant and crack-resistant colored luminescent concrete.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of compression-resistant anti-cracking color luminous concrete comprises the following steps:
s1: pouring the Portland cement, the pigment, the coarse aggregate, the fine aggregate and the metal fiber into a stirrer together, and stirring and mixing to obtain a cement mixture;
s2: pouring a water reducing agent and water into the cement mixture, and continuously stirring, wherein the mass ratio of the water reducing agent to the cement mixture is 2-3%, and the mass ratio of the water to the cement mixture is 35-45%;
s3: pre-stirring a binder, fluorite and glass fiber, wherein the mass ratio of the binder to the fluorite to the glass fiber is 1:2-3: 5-6;
s4: pouring the stirred and mixed binder, fluorite and glass fiber into the cement mixture, and simultaneously adding water for the second time for stirring and mixing;
s5: standing, precipitating and exhausting after stirring and mixing are finished, and then continuously stirring for 15-20min to obtain the colored concrete;
s6: placing a reinforcing mesh on the inner wall of the concrete forming template, and then inserting a plurality of light guide fiber bundles which are higher than the forming template and are arranged according to a specified pattern into the bottom of the concrete forming template;
s7: pouring color concrete into a forming template, polishing the surface of the concrete after the concrete is solidified into a plate, cutting off redundant light guide fibers extending out of the surface of the concrete, and then installing a concrete plate on one side or two sides of an LED light-emitting plate, wherein the LED light-emitting plate is fixed on a steel frame, the steel frame and the concrete plate are fixed by bolts, and the LED light-emitting plate and the concrete plate are separated by 5-10 cm.
Preferably: in the S1, the cement is 100-120 parts, the pigment is 20-40 parts, the coarse aggregate is 100-120 parts, the fine aggregate is 150-160 parts, the metal fiber content is 20-30kg/m3 concrete, the stirring speed is 800-1000r/min, the stirring temperature is 20-40 ℃, and the stirring time is 20-30 min.
Further: in S1, the pigment is one of ferric oxide, chromium oxide, ochre and ultramarine, the metal fiber is straight steel fiber, the length of the steel fiber is 1-2 cm, and the diameter of the steel fiber is 0.6-1 mm.
Further preferred is: in the S2, the water reducing agent is a lignosulfonate high-efficiency water reducing agent, the stirring speed is 500-650r/min, and the stirring time is 10-20 min.
As a preferable aspect of the present invention: in the S3, 10-15 parts of binder, 10-15 parts of fluorite and 20-25 parts of glass fiber, wherein the binder is composed of alumina powder, montmorillonite and epoxy resin in a mass ratio of 3-4:1-2: 4-5.
Further preferred as the invention: in the S3, the fluorite is in a cubic structure with the size of 2-5 mm, the diameter of the glass fiber is 1-1.5 mm, the pre-stirring speed is 400-500r/min, and the stirring time is 5-8 min.
As a still further scheme of the invention: in the S4, the mass ratio of the water added for the second time to the cement mixture is 10-15%, the stirring speed is 600-700r/min, and the stirring time is 5-10 min.
On the basis of the scheme: in the S5, the standing, precipitating and exhausting time is 5-8min, the ambient temperature is controlled at 10-20 ℃, and the stirring speed is 400 r/min.
On the basis of the scheme: in the step S6, screw hole sites are reserved on the surface when the concrete is solidified into a plate and are fixed on a designated steel frame through bolts, the LED light-emitting plate is located between the concrete plate and the steel frame, and the diameter of the steel bar on the steel bar mesh plate is 5-8 mm.
The invention has the beneficial effects that:
1. through adding the binder made by alumina powder, montmorillonite and epoxy resin in the concrete, can effectual improvement concrete holistic anticorrosive and ageing resistance after epoxy mixes the concrete, let the colour concrete can be long-time keep the colour of oneself under various comparatively harsh environment, the alumina powder of adding simultaneously can effectual improvement epoxy's hardness, thereby further improve the bulk hardness of concrete, the montmorillonite can effectual improvement colour concrete's heat-resisting fire resistance, let colour concrete can still keep the colour of self under high temperature environment.
2. The proper amount of straight steel fibers are added into the concrete, and the steel fibers are mixed with main materials (Portland cement, coarse and fine aggregates) forming the concrete at first, so that the added steel fibers can be uniformly distributed in the concrete, the overall bearing and pressure resistance of the concrete is improved by matching with the coarse and fine aggregates, and the overall anti-cracking performance of the concrete slab is improved by matching with the added epoxy resin and the reinforcing mesh.
3. The fluorite with the cubic structure of 2-5 mm in size and the glass fiber with the diameter of 1-1.5 mm are added into the concrete, the fluorite is uniformly mixed in the concrete after being stirred, the surface of the concrete can emit point fluorescence at night, and therefore the integral ornamental value of the colored concrete is improved, meanwhile, the glass fiber added into the concrete can effectively improve the bending strength and the toughness of the concrete, and the glass fiber has better crack resistance, can delay the cracking of the concrete and prevent the expansion of microcracks, and further improves the protective performance of the concrete.
4. Mix concrete major ingredient and pigment such as iron oxide, chromium oxide, ochre and ultramarine, add materials such as water and water-reducing agent behind the mixing colour cement and mix colour cement and stir colour concrete with colour cement mixing, let carry out the homogeneous mixing between pigment and the concrete major ingredient, thereby let colour concrete's colour more even, add supplementary reinforcing material such as binder, fluorite and glass fiber afterwards, thereby reduce the influence of binder, fluorite and glass fiber to colour concrete self colour.
Drawings
Fig. 1 is a flow diagram illustrating a preparation method of the compressive crack-resistant color luminescent concrete provided by the invention.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
Example 1:
a preparation method of the compression-resistant and crack-resistant color luminescent concrete is shown in figure 1 and comprises the following steps:
s1: pouring the Portland cement, the pigment, the coarse aggregate, the fine aggregate and the metal fiber into a stirrer together, and stirring and mixing to obtain a cement mixture;
s2: pouring a water reducing agent and water into the cement mixture, and continuously stirring, wherein the mass ratio of the water reducing agent to the cement mixture is 2-3%, and the mass ratio of the water to the cement mixture is 35-45%;
s3: pre-stirring a binder, fluorite and glass fiber, wherein the mass ratio of the binder to the fluorite to the glass fiber is 1:2-3: 5-6;
s4: pouring the stirred and mixed binder, fluorite and glass fiber into the cement mixture, and simultaneously adding water for the second time for stirring and mixing;
s5: standing, precipitating and exhausting after stirring and mixing are finished, and then continuously stirring for 15-20min to obtain the colored concrete;
s6: placing a reinforcing mesh on the inner wall of the concrete forming template, and then inserting a plurality of light guide fiber bundles which are higher than the forming template and are arranged according to a specified pattern into the bottom of the concrete forming template;
s7: pouring color concrete into a forming template, polishing the surface of the concrete after the concrete is solidified into a plate, cutting off redundant light guide fibers extending out of the surface of the concrete, and then installing a concrete plate on one side or two sides of an LED light-emitting plate, wherein the LED light-emitting plate is fixed on a steel frame, the steel frame and the concrete plate are fixed by bolts, and the LED light-emitting plate and the concrete plate are separated by 5-10 cm.
In the S1, the content of Portland cement is 100-120 parts, the content of pigment is 20-40 parts, the content of coarse aggregate is 100-120 parts, the content of fine aggregate is 150-160 parts, the content of metal fiber is 20-30kg/m3 concrete, the stirring speed is 800-1000r/min, the stirring temperature is 20-40 ℃, and the stirring time is 20-30 min;
in the S1, the pigment is one of ferric oxide, chromium oxide, ochre and ultramarine, the metal fiber is straight steel fiber, the length of the steel fiber is 1-2 cm, and the diameter of the steel fiber is 0.6-1 mm;
in the S2, the water reducing agent is a lignosulfonate high-efficiency water reducing agent, the stirring speed is 500-650r/min, and the stirring time is 10-20 min;
in the S3, 10-15 parts of a binder, 10-15 parts of fluorite and 20-25 parts of glass fiber, wherein the binder is prepared from alumina powder, montmorillonite and epoxy resin in a mass ratio of 3-4:1-2: 4-5;
in the S3, fluorite is in a cubic structure with the size of 2-5 mm, the diameter of glass fiber is 1-1.5 mm, the pre-stirring speed is 400-500r/min, and the stirring time is 5-8 min;
in the S4, the mass ratio of the water added for the second time to the cement mixture is 10-15%, the stirring speed is 600-;
in the S5, the standing, precipitating and exhausting time is 5-8min, the ambient temperature is controlled at 10-20 ℃, and the stirring speed is 400 r/min.
In the step S6, screw hole sites are reserved on the surface when the concrete is solidified into a plate and are fixed on a designated steel frame through bolts, the LED light-emitting plate is located between the concrete plate and the steel frame, and the diameter of the steel bar on the steel bar mesh plate is 5-8 mm.
The method comprises the steps of adding straight steel fibers with the length of 1-2 cm and the diameter of 0.6-1 mm into concrete, mixing the straight steel fibers with main materials (portland cement and coarse and fine aggregates) forming the concrete, and enabling the added straight steel fibers to be uniformly distributed in the concrete, so that the overall bearing and pressure resistance of the concrete is improved by matching the coarse and fine aggregates, and the forming speed of the concrete can be accelerated.
Through adding the binder made by alumina powder, montmorillonite and epoxy resin in the concrete, can effectual improvement concrete holistic anticorrosive and ageing resistance after epoxy mixes the concrete, let the colour concrete can be long-time keep the colour of oneself under various comparatively harsh environment, the alumina powder of adding simultaneously can effectual improvement epoxy's hardness, thereby further improve the bulk hardness of concrete, the montmorillonite can effectual improvement colour concrete's heat-resisting fire resistance, let colour concrete can still keep the colour of self under high temperature environment.
The fluorite with the cubic structure of 2-5 mm in size and the glass fiber with the diameter of 1-1.5 mm are added into the concrete, the fluorite is uniformly mixed in the concrete after being stirred, the surface of the concrete can emit point fluorescence at night, and therefore the integral ornamental value of the colored concrete is improved, meanwhile, the glass fiber added into the concrete can effectively improve the bending strength and the toughness of the concrete, and the glass fiber has better crack resistance, can delay the cracking of the concrete and prevent the expansion of microcracks, and further improves the protective performance of the concrete.
At first mix concrete major ingredient and pigment such as iron oxide, chromium oxide, ochre and ultramarine, add materials such as water and water-reducing agent behind the mixing colour cement and mix colour cement and stir colour concrete with colour cement mixing, let carry out the homogeneous mixing between pigment and the concrete major ingredient, thereby let colour concrete's colour more even, add supplementary reinforcing material such as binder, fluorite and glass fiber afterwards, thereby reduce the influence of binder, fluorite and glass fiber to colour concrete self colour.
The concrete slabs can be arranged on two sides or the upper surface and the lower surface of the LED light-emitting slab according to the installation and use requirements, and the concrete slabs and the LED light-emitting slab are arranged on the specified steel frame together through bolts, so that the concrete slabs and the steel frame clamp and fix the LED light-emitting slab together, the protection effect on the LED light-emitting slab is improved, and the service life of the light-emitting concrete slabs is prolonged;
the user can select the LED luminescent plate of different colours according to self demand simultaneously, lets luminous concrete can be used in the occasion of various needs, can arrange into different patterns and characters according to the luminescent fiber of user's demand installation in with the shaping template simultaneously, lets the luminous concrete slab that makes through the luminous concrete that makes in this scheme can use in areas such as municipal park, pedestrian path, body-building sport place to can build good atmosphere such as warm and graceful, romantic in above-mentioned area.
Example 2:
pouring 100-120 parts of Portland cement, 20-40 parts of pigment, 100-120 parts of coarse aggregate, 150-160 parts of fine aggregate, 10-15 parts of binder, 10-15 parts of fluorite and 150 parts of water into a stirrer for stirring and mixing, pouring into a mold for 28 days to prepare a color concrete plate, and then testing the compression strength and the bending strength of the color concrete plate, wherein the data of the compression strength and the bending strength are as follows: compressive strength-33.5 MPa. Bending strength-5.0 MPa.
Example 3:
pouring 100-120 parts of Portland cement, 20-40 parts of pigment, 100-120 parts of coarse aggregate, 150-160 parts of fine aggregate, 10-15 parts of binder, 10-15 parts of fluorite, 20-25 parts of glass fiber, flat and straight steel fiber with the mixing amount of 20-30kg/m3 concrete and 100-150 parts of water into a stirrer for stirring and mixing, then pouring into a mold for 28 days to prepare a color concrete plate, and then testing the compression strength and the bending strength of the color concrete plate to obtain the data of the compression strength and the bending strength as follows: compressive strength- -55.5 MPa. Bending strength-6.3 MPa.
Then, colored concrete is prepared according to the example 1, poured into a mould for 28 days to prepare a colored concrete plate, and then the colored concrete plate is subjected to compression strength and bending strength tests, wherein the compression strength and the bending strength are obtained by the following data: compressive strength-65.6 MPa. Bending strength-7.5 MPa, and arranging the test data of the compressive strength and the bending strength of the three colored concrete slabs into the following table:
| grouping | Number of days | Compressive strength | Strength against bending |
| Example 1 | 28d | 65.6MPa | 7.5MPa |
| Example 2 | 28d | 33.5MPa | 5.0MPa |
| Example 3 | 28d | 55.5MPa | 6.3MPa |
It can be seen from the above table that after the glass fiber and the straight steel fiber are mixed into the colored concrete, the compressive strength and the bending strength of the colored concrete plate can be effectively improved, and simultaneously, after the mixing and stirring are carried out according to the mixing and stirring step of the embodiment 1, the compressive strength and the bending strength of the colored concrete plate can be further improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The preparation method of the compression-resistant anti-cracking color luminous concrete is characterized by comprising the following steps of:
s1: pouring the Portland cement, the pigment, the coarse aggregate, the fine aggregate and the metal fiber into a stirrer together, and stirring and mixing to obtain a cement mixture;
s2: pouring a water reducing agent and water into the cement mixture, and continuously stirring, wherein the mass ratio of the water reducing agent to the cement mixture is 2-3%, and the mass ratio of the water to the cement mixture is 35-45%;
s3: pre-stirring a binder, fluorite and glass fiber, wherein the mass ratio of the binder to the fluorite to the glass fiber is 1:2-3: 5-6;
s4: pouring the stirred and mixed binder, fluorite and glass fiber into the cement mixture, and simultaneously adding water for the second time for stirring and mixing;
s5: standing, precipitating and exhausting after stirring and mixing are finished, and then continuously stirring for 15-20min to obtain the colored concrete;
s6: placing a steel bar net piece on the inner side of the concrete forming template and fixing the steel bar net piece by using a cushion block, and then inserting a plurality of light guide fiber bundles which are higher than the forming template and are arranged according to a specified pattern into the bottom of the concrete forming template;
s7: pouring color concrete into a forming template, polishing the surface of the concrete after the concrete is solidified into a plate, cutting off redundant light guide fibers extending out of the surface of the concrete, and then installing a concrete plate on one side or two sides of an LED light-emitting plate, wherein the LED light-emitting plate is fixed on a steel frame, the steel frame and the concrete plate are fixed by bolts, and the LED light-emitting plate and the concrete plate are separated by 5-10 cm.
2. The method for preparing the compression-resistant and crack-resistant colored luminescent concrete as claimed in claim 1, wherein in the S1, the Portland cement is 120 parts, the pigment is 20-40 parts, the coarse aggregate is 100-120 parts, the fine aggregate is 150-160 parts, the metal fiber content is 20-30kg/m3 concrete, the stirring speed is 800-1000r/min, the stirring temperature is 20-40 ℃, and the stirring time is 20-30 min.
3. The method for preparing the compression-resistant and crack-resistant colored luminous concrete according to claim 2, wherein in S1, the pigment is one of iron oxide, chromium oxide, ochre and ultramarine, the metal fibers are straight steel fibers, the length of the steel fibers is 1-2 cm, and the diameter of the steel fibers is 0.6-1 mm.
4. The method for preparing compressive and anti-cracking colored luminescent concrete according to claim 1, wherein in S2, the water reducing agent is a lignosulfonate high-efficiency water reducing agent, the stirring speed is 500-650r/min, and the stirring time is 10-20 min.
5. The method for preparing the compression-resistant and crack-resistant colored luminous concrete according to claim 1, wherein in the step S3, 10-15 parts of binder, 10-15 parts of fluorite and 20-25 parts of glass fiber are adopted, and the binder is prepared from alumina powder, montmorillonite and epoxy resin in a mass ratio of 3-4:1-2: 4-5.
6. The method as claimed in claim 5, wherein in S3, fluorite is in a cubic structure with a size of 2-5 mm, the diameter of glass fiber is 1-1.5 mm, the pre-stirring speed is 400-500r/min, and the stirring time is 5-8 min.
7. The method for preparing the compressive and anti-cracking colored luminescent concrete as claimed in claim 1, wherein in S4, the mass ratio of the water added for the second time to the cement mixture is 10-15%, the stirring speed is 600-700r/min, and the stirring time is 5-10 min.
8. The method for preparing the compressive and anti-cracking colored luminescent concrete as claimed in claim 1, wherein in S5, the standing, precipitating and exhausting time is 5-8min, the ambient temperature is controlled at 10-20 ℃, and the stirring speed is 300-400 r/min.
9. The method as claimed in claim 1, wherein in step S6, screw holes are reserved on the surface of the concrete when it is solidified into a slab, and the slab is fixed to a designated steel frame by bolts, the LED light-emitting slab is located between the concrete slab and the steel frame, and the diameter of the steel bar on the steel bar mesh is 5-8 mm.
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| CN104478352A (en) * | 2014-11-19 | 2015-04-01 | 东莞市青麦田数码科技有限公司 | Colored concrete and preparation method thereof |
| CN105946108A (en) * | 2016-04-29 | 2016-09-21 | 武汉理工大学 | Digital manufacturing method for light permeable concrete |
| CN107336333A (en) * | 2017-08-14 | 2017-11-10 | 上海宝岳住宅工业有限公司 | A kind of colorful light-permeable concrete preparation facilities and preparation method thereof |
| CN109503041A (en) * | 2018-12-24 | 2019-03-22 | 射阳县华厦混凝土有限公司 | A kind of colour heat insulating concrete production technology |
| CN109760175A (en) * | 2019-03-01 | 2019-05-17 | 湖南恒盛瑞通新型建材有限公司 | A kind of production method and its production mould of non-light tight concrete |
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| CN104478352A (en) * | 2014-11-19 | 2015-04-01 | 东莞市青麦田数码科技有限公司 | Colored concrete and preparation method thereof |
| CN105946108A (en) * | 2016-04-29 | 2016-09-21 | 武汉理工大学 | Digital manufacturing method for light permeable concrete |
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