Preparation method of fair-faced concrete with uniform color

Abstract

The invention relates to the field of fair-faced concrete, in particular to a preparation method of fair-faced concrete with uniform color and luster, the fair-faced concrete comprises an additive, cement and aggregate, and the weight ratio of the additive to the cement to the aggregate is 20: (20-40): (40-60) during use. According to the invention, the uvioresistant dye is prepared by mixing the uvioresistant powder, the uvioresistant liquid material, the white inorganic pigment and the epoxy resin, and the uvioresistant dye is poured into the mixture for coloring in the preparation process of the cement and the aggregate, so that the mixing effect of the uvioresistant dye, the cement and the aggregate can be further improved; the color retaining effect of the finally prepared bare concrete under long-time sunlight irradiation is enhanced, and the expected artistic effect of the bare concrete is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of plain concrete, and in particular to a method for preparing plain concrete with uniform color. Background Art

[0002] Fair-faced concrete is a special concrete material. Its characteristic is that it does not require additional decorative treatment after pouring, and its natural texture can be directly used as the finishing effect.

[0003] When exposed to sunlight for a long time, the surface of the concrete will be strongly irradiated by ultraviolet rays, which will accelerate the aging process of the concrete surface, causing its color to change, thus affecting its color uniformity. This will not only destroy the overall sense of the concrete surface, but also affect the appearance of the building and fail to achieve the expected aesthetic effect. In addition, the uneven color of the concrete will also destroy the coherence and consistency of its texture, making the texture of the concrete surface chaotic and affecting the artistry of the building. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a method for preparing fair-faced concrete with uniform color.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme:

[0006] A clear concrete with uniform color, comprising an additive, cement and aggregate, wherein the weight ratio of the additive, cement and aggregate when used is 20:(20-40):(40-60);

[0007] The additive comprises the following components by weight: 10-15 parts of lignin sulfonate water reducing agent, 5-10 parts of sodium lauryl sulfate, 10-15 parts of sodium polyacrylate water retaining agent, 20-30 parts of sodium benzoate preservative, 20-30 parts of anti-ultraviolet powder, 20-30 parts of anti-ultraviolet liquid, 150-200 parts of white inorganic pigment, and 200-250 parts of epoxy resin;

[0008] The cement comprises the following components by weight: 130-150 parts of limestone, 20-30 parts of clay, 1-3 parts of iron ore powder, and 60-80 parts of water;

[0009] The aggregate comprises the following components by weight: 200-250 parts of coarse aggregate and 175-225 parts of fine aggregate.

[0010] Preferably, the anti-ultraviolet powder is prepared by mixing titanium dioxide powder and zinc oxide powder, wherein the weight ratio of titanium dioxide powder to zinc oxide powder is (1-3):1.

[0011] Preferably, the anti-ultraviolet liquid material is prepared by mixing an organosilicon-modified resin and iodine, wherein the weight ratio of the organosilicon-modified resin to iodine is (2-6):1.

[0012] Preferably, the white inorganic pigment is prepared by mixing water, stearic acid and sodium silicate, wherein the weight ratio of water, stearic acid and sodium silicate is 1:3:6.

[0013] Preferably, the coarse aggregate is crushed stone with uniform color, and the weight ratio of large crushed stone to small crushed stone in the coarse aggregate is 8:2.

[0014] Preferably, the fine aggregate is selected from medium-coarse sand of uniform color, and the fineness modulus of the fine aggregate is 2.3-2.5.

[0015] A method for preparing fair-faced concrete with uniform color comprises the following steps:

[0016] S1: preparing additives;

[0017] a: pouring 20-30 parts of anti-ultraviolet powder and 20-30 parts of anti-ultraviolet liquid into a blender and stirring to obtain a mixture A;

[0018] b: Pour 150-200 parts of white inorganic pigment and 200-250 parts of epoxy resin into a blender and stir to obtain a mixture B;

[0019] c: pouring mixture A and mixture B into a blender and stirring to obtain 350-450 parts of mixture C;

[0020] d: Pour 10-15 parts of lignin sulfonate water reducer, 5-10 parts of sodium lauryl sulfate, and 20-30 parts of sodium benzoate preservative into a blender and stir to obtain a mixture D;

[0021] S2: preparing cement;

[0022] a: Pour 130-150 parts of limestone into the crusher for crushing, and crush the limestone to a particle size of less than 25 mm;

[0023] b: Pour 20-30 parts of clay, 1-3 parts of iron ore powder and 60-80 parts of water into a grinder and grind to obtain a mixture E;

[0024] c: Pour the mixture E into a decomposition kiln for calcination. After forging, take it out and cool it for 24 hours;

[0025] d: Pour the cooled mixture E into a grinder, add 150-200 parts of mixture C and grind again to obtain cement;

[0026] S3: preparing aggregate;

[0027] a: Pour 200-250 parts of coarse aggregate and 175-225 parts of fine aggregate into a concrete mixer and mix to obtain a mixture F;

[0028] b: Pour mixture F and 200-250 parts of mixture C into a mixer and mix them to obtain aggregate;

[0029] S4: preparing plain concrete;

[0030] a: pouring cement and aggregate into a mixer and mixing them to obtain a mixture G;

[0031] b: pouring mixture G and mixture D into a blender and mixing them to obtain mixture H;

[0032] c: The mixture H was allowed to stand for 24 hours, and then poured into an ultrasonic mixer and mixed evenly to obtain plain concrete.

[0033] Preferably, the forging temperature in the decomposition kiln in step S2-c is 1450°C, and the forging time is 60 minutes.

[0034] Preferably, in step S2, the first grinding speed is 50 r / min, and the grinding time is 45 min; the second grinding speed is 70 r / min, and the grinding time is 60 min.

[0035] The beneficial effects of the present invention are as follows: by mixing anti-ultraviolet powder, anti-ultraviolet liquid, white inorganic pigment and epoxy resin to form anti-ultraviolet dye, and pouring the anti-ultraviolet dye into cement and aggregate for coloring during the preparation process, the mixing effect of the anti-ultraviolet dye, cement and aggregate can be further improved, so as to enhance the color retention effect of the finally prepared clear water concrete under long-term sunlight irradiation, so as to achieve the expected artistic effect. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] Embodiment 1:

[0038] A uniform-colored plain concrete comprising an additive, cement and aggregate, wherein the weight ratio of the additive, cement and aggregate when used is 20:20:60;

[0039] The additives include the following components by weight: 10 parts of lignin sulfonate water reducer, 5 parts of sodium lauryl sulfate, 10 parts of sodium polyacrylate water retaining agent, 20 parts of sodium benzoate preservative, 20 parts of anti-ultraviolet powder, 20 parts of anti-ultraviolet liquid, 150 parts of white inorganic pigment, and 200 parts of epoxy resin;

[0040] The cement comprises the following components in weight proportion: 130 parts of limestone, 20 parts of clay, 1 part of iron ore powder, and 60 parts of water; the aggregate comprises the following components in weight proportion: 200 parts of coarse aggregate and 175 parts of fine aggregate.

[0041] The anti-ultraviolet powder is prepared by mixing titanium dioxide powder and zinc oxide powder, wherein the weight ratio of titanium dioxide powder to zinc oxide powder is 1: 1. Both titanium dioxide powder and zinc oxide powder have strong anti-ultraviolet performance, which can improve the anti-ultraviolet performance of plain concrete.

[0042] The anti-ultraviolet liquid material is prepared by mixing silicone modified resin and iodine, wherein the weight ratio of the silicone modified resin to the iodine is 2: 1. The anti-ultraviolet liquid material formed by mixing silicone modified resin and iodine can further improve the anti-ultraviolet performance of the prepared plain concrete, so as to reduce the discoloration of the plain concrete due to excessive exposure to the sun during use.

[0043] The white inorganic pigment is prepared by mixing water, stearic acid and sodium silicate, wherein the weight ratio of water, stearic acid and sodium silicate is 1:3:6. The white inorganic pigment prepared from water, stearic acid and sodium silicate has good light resistance, so as to reduce the discoloration of the plain concrete due to sunlight.

[0044] The coarse aggregate is crushed stone of the same color, and the weight ratio of large crushed stone to small crushed stone in the coarse aggregate is 8:2. The fine aggregate is medium-coarse sand of the same color, and the fineness modulus of the fine aggregate is 2.3-2.5.

[0045] A method for preparing fair-faced concrete with uniform color comprises the following steps:

[0046] S1: preparing additives;

[0047] a: pouring 20 parts of anti-ultraviolet powder and 20 parts of anti-ultraviolet liquid into a blender and stirring to obtain a mixture A;

[0048] b: Pour 150 parts of white inorganic pigment and 200 parts of epoxy resin into a blender and stir to obtain a mixture B;

[0049] c: Pour mixture A and mixture B into a blender and stir to obtain 350 parts of mixture C;

[0050] d: Pour 10 parts of lignin sulfonate water reducer, 5 parts of sodium lauryl sulfate, and 20 parts of sodium benzoate preservative into a blender and stir to obtain a mixture D;

[0051] S2: preparing cement;

[0052] a: Pour 130 parts of limestone into a crusher for crushing, and crush the limestone to a particle size of less than 25 mm;

[0053] b: Pour 20 parts of clay, 1 part of iron ore powder and 60 parts of water into a grinder and grind to obtain a mixture E;

[0054] c: Pour the mixture E into a decomposition kiln for calcination. After forging, take it out and cool it for 24 hours;

[0055] d: Pour the cooled mixture E into a grinder, add 150 parts of mixture C and grind again to obtain cement;

[0056] S3: preparing aggregate;

[0057] a: 200 parts of coarse aggregate and 175 parts of fine aggregate are poured into a concrete mixer and mixed to obtain a mixture F;

[0058] b: Pour mixture F and 200 parts of mixture C into a mixer and mix them to obtain aggregate;

[0059] S4: preparing plain concrete;

[0060] a: pouring cement and aggregate into a mixer and mixing them to obtain a mixture G;

[0061] b: pouring mixture G and mixture D into a blender and mixing them to obtain mixture H;

[0062] c: The mixture H was allowed to stand for 24 hours, and then poured into an ultrasonic mixer and mixed evenly to obtain plain concrete.

[0063] The forging temperature in the decomposition kiln in step S2-c is 1450°C and the forging time is 60 minutes. In step S2, the first grinding speed is 50 r / min and the grinding time is 45 minutes; the second grinding speed is 70 r / min and the grinding time is 60 minutes.

[0064] Embodiment 2:

[0065] A uniform-colored plain concrete comprising an additive, cement and aggregate, wherein the weight ratio of the additive, cement and aggregate when used is 20:30:50;

[0066] The additives include the following components by weight: 12 parts of lignin sulfonate water reducer, 8 parts of sodium lauryl sulfate, 12 parts of sodium polyacrylate water retaining agent, 25 parts of sodium benzoate preservative, 25 parts of anti-ultraviolet powder, 25 parts of anti-ultraviolet liquid, 200 parts of white inorganic pigment, and 225 parts of epoxy resin;

[0067] The cement comprises the following components in weight proportion: 140 parts of limestone, 25 parts of clay, 2 parts of iron ore powder, and 70 parts of water; the aggregate comprises the following components in weight proportion: 225 parts of coarse aggregate and 200 parts of fine aggregate.

[0068] The anti-ultraviolet powder is prepared by mixing titanium dioxide powder and zinc oxide powder, wherein the weight ratio of titanium dioxide powder to zinc oxide powder is 2: 1. Both titanium dioxide powder and zinc oxide powder have strong anti-ultraviolet performance, which can improve the anti-ultraviolet performance of plain concrete.

[0069] The anti-ultraviolet liquid material is prepared by mixing organic silicon modified resin and iodine, wherein the weight ratio of the organic silicon modified resin to the iodine is 4: 1. The anti-ultraviolet liquid material formed by mixing the organic silicon modified resin and iodine can further improve the anti-ultraviolet performance of the prepared plain concrete, so as to reduce the discoloration of the plain concrete due to excessive exposure to the sun during use.

[0070] The white inorganic pigment is prepared by mixing water, stearic acid and sodium silicate, wherein the weight ratio of water, stearic acid and sodium silicate is 1:3:6. The white inorganic pigment prepared from water, stearic acid and sodium silicate has good light resistance, so as to reduce the discoloration of the plain concrete due to sunlight.

[0071] The coarse aggregate is crushed stone of the same color, and the weight ratio of large crushed stone to small crushed stone in the coarse aggregate is 8:2. The fine aggregate is medium-coarse sand of the same color, and the fineness modulus of the fine aggregate is 2.3-2.5.

[0072] A method for preparing fair-faced concrete with uniform color comprises the following steps:

[0073] S1: preparing additives;

[0074] a: pouring 25 parts of anti-ultraviolet powder and 25 parts of anti-ultraviolet liquid into a blender and stirring to obtain a mixture A;

[0075] b: Pour 175 parts of white inorganic pigment and 225 parts of epoxy resin into a blender and stir to obtain a mixture B;

[0076] c: Pour mixture A and mixture B into a blender and stir to obtain 400 parts of mixture C;

[0077] d: Pour 12 parts of lignin sulfonate water reducer, 8 parts of sodium lauryl sulfate, and 25 parts of sodium benzoate preservative into a blender and stir to obtain a mixture D;

[0078] S2: preparing cement;

[0079] a: Pour 140 parts of limestone into a crusher for crushing, and crush the limestone to a particle size of less than 25 mm;

[0080] b: Pour 25 parts of clay, 2 parts of iron ore powder and 70 parts of water into a grinder and grind to obtain a mixture E;

[0081] c: Pour the mixture E into a decomposition kiln for calcination. After forging, take it out and cool it for 24 hours;

[0082] d: Pour the cooled mixture E into a grinder, add 175 parts of mixture C and grind again to obtain cement;

[0083] S3: preparing aggregate;

[0084] a: 225 parts of coarse aggregate and 200 parts of fine aggregate are poured into a concrete mixer and mixed to obtain a mixture F;

[0085] b: Pour mixture F and 225 parts of mixture C into a mixer and mix to obtain aggregate;

[0086] S4: preparing plain concrete;

[0087] a: pouring cement and aggregate into a mixer and mixing them to obtain a mixture G;

[0088] b: pouring mixture G and mixture D into a blender and mixing them to obtain mixture H;

[0089] c: The mixture H was allowed to stand for 24 hours, and then poured into an ultrasonic mixer and mixed evenly to obtain plain concrete.

[0090] The forging temperature in the decomposition kiln in step S2-c is 1450°C and the forging time is 60 minutes. In step S2, the first grinding speed is 50 r / min and the grinding time is 45 minutes; the second grinding speed is 70 r / min and the grinding time is 60 minutes.

[0091] Embodiment 3:

[0092] A uniform-colored plain concrete comprising an additive, cement and aggregate, wherein the weight ratio of the additive, cement and aggregate when used is 20:40:40;

[0093] The additives include the following components by weight: 15 parts of lignin sulfonate water reducer, 10 parts of sodium lauryl sulfate, 15 parts of sodium polyacrylate water retaining agent, 30 parts of sodium benzoate preservative, 30 parts of anti-ultraviolet powder, 30 parts of anti-ultraviolet liquid, 200 parts of white inorganic pigment, and 250 parts of epoxy resin;

[0094] The cement comprises the following components in weight proportion: 150 parts of limestone, 30 parts of clay, 3 parts of iron ore powder, and 80 parts of water; the aggregate comprises the following components in weight proportion: 250 parts of coarse aggregate and 225 parts of fine aggregate.

[0095] The anti-ultraviolet powder is prepared by mixing titanium dioxide powder and zinc oxide powder, wherein the weight ratio of titanium dioxide powder to zinc oxide powder is 3: 1. Both titanium dioxide powder and zinc oxide powder have strong anti-ultraviolet performance, which can improve the anti-ultraviolet performance of plain concrete.

[0096] The anti-ultraviolet liquid material is prepared by mixing silicone modified resin and iodine, wherein the weight ratio of the silicone modified resin to the iodine is 6: 1. The anti-ultraviolet liquid material formed by mixing silicone modified resin and iodine can further improve the anti-ultraviolet performance of the prepared plain concrete, so as to reduce the discoloration of the plain concrete due to excessive exposure to the sun during use.

[0097] The white inorganic pigment is prepared by mixing water, stearic acid and sodium silicate, wherein the weight ratio of water, stearic acid and sodium silicate is 1:3:6. The white inorganic pigment prepared from water, stearic acid and sodium silicate has good light resistance, so as to reduce the discoloration of the plain concrete due to sunlight.

[0098] The coarse aggregate is crushed stone of the same color, and the weight ratio of large crushed stone to small crushed stone in the coarse aggregate is 8:2. The fine aggregate is medium-coarse sand of the same color, and the fineness modulus of the fine aggregate is 2.3-2.5.

[0099] A method for preparing fair-faced concrete with uniform color comprises the following steps:

[0100] S1: preparing additives;

[0101] a: pouring 30 parts of anti-ultraviolet powder and 30 parts of anti-ultraviolet liquid into a blender and stirring to obtain a mixture A;

[0102] b: Pour 200 parts of white inorganic pigment and 250 parts of epoxy resin into a blender and stir to obtain a mixture B;

[0103] c: Pour mixture A and mixture B into a blender and stir to obtain 450 parts of mixture C;

[0104] d: Pour 15 parts of lignin sulfonate water reducer, 10 parts of sodium lauryl sulfate and 30 parts of sodium benzoate preservative into a blender and stir to obtain a mixture D;

[0105] S2: preparing cement;

[0106] a: Pour 150 parts of limestone into the crusher for crushing, and crush the limestone to a particle size of less than 25 mm;

[0107] b: Pour 30 parts of clay, 3 parts of iron ore powder and 80 parts of water into a grinder and grind to obtain a mixture E;

[0108] c: Pour the mixture E into a decomposition kiln for calcination. After forging, take it out and cool it for 24 hours;

[0109] d: Pour the cooled mixture E into a grinder, add 200 parts of mixture C and grind again to obtain cement;

[0110] S3: preparing aggregate;

[0111] a: 250 parts of coarse aggregate and 225 parts of fine aggregate are poured into a concrete mixer and mixed to obtain a mixture F;

[0112] b: Pour mixture F and 250 parts of mixture C into a mixer and mix them to obtain aggregate;

[0113] S4: preparing plain concrete;

[0114] a: pouring cement and aggregate into a mixer and mixing them to obtain a mixture G;

[0115] b: pouring mixture G and mixture D into a blender and mixing them to obtain mixture H;

[0116] c: The mixture H was allowed to stand for 24 hours, and then poured into an ultrasonic mixer and mixed evenly to obtain plain concrete.

[0117] The forging temperature in the decomposition kiln in step S2-c is 1450°C and the forging time is 60 minutes. In step S2, the first grinding speed is 50 r / min and the grinding time is 45 minutes; the second grinding speed is 70 r / min and the grinding time is 60 minutes.

[0118] In this embodiment, the coarse aggregate is crushed stone of uniform color, and the weight ratio of large crushed stone to small crushed stone in the coarse aggregate is 8:2 to ensure good gradation of aggregate. The fine aggregate is medium-coarse sand of uniform color, and the fineness modulus of the fine aggregate is 2.3-2.5, which can ensure that the concrete is easy to vibrate and shape and has a smooth surface.

[0119] Furthermore, by uniformly mixing the anti-ultraviolet dye prepared from anti-ultraviolet powder, anti-ultraviolet liquid, white inorganic pigment and epoxy resin with cement and aggregate, the finally prepared plain concrete is not easily discolored due to ultraviolet radiation.

[0120] In the present invention, the anti-ultraviolet dye is prepared by mixing anti-ultraviolet powder, anti-ultraviolet liquid, white inorganic pigment and epoxy resin, and the anti-ultraviolet dye is poured into cement and aggregate for coloring during the preparation process, so that the mixing effect of the anti-ultraviolet dye, cement and aggregate can be further improved, so as to enhance the color retention effect of the finally prepared clear water concrete under long-term sunlight irradiation, so as to achieve the expected artistic effect.

[0121] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A clear concrete with uniform color, comprising an additive, cement and aggregate, wherein the weight ratio of the additive, cement and aggregate when used is 20:(20-40):(40-60); The additive comprises the following components by weight: 10-15 parts of lignin sulfonate water reducing agent, 5-10 parts of sodium lauryl sulfate, 10-15 parts of sodium polyacrylate water retaining agent, 20-30 parts of sodium benzoate preservative, 20-30 parts of anti-ultraviolet powder, 20-30 parts of anti-ultraviolet liquid, 150-200 parts of white inorganic pigment, and 200-250 parts of epoxy resin; The cement comprises the following components by weight: 130-150 parts of limestone, 20-30 parts of clay, 1-3 parts of iron ore powder, and 60-80 parts of water; The aggregate comprises the following components by weight: 200-250 parts of coarse aggregate and 175-225 parts of fine aggregate.

2. The uniform color plain concrete according to claim 1, characterized in that: The anti-ultraviolet powder is prepared by mixing titanium dioxide powder and zinc oxide powder, wherein the weight ratio of the titanium dioxide powder to the zinc oxide powder is (1-3):

1.

3. The uniform color plain concrete according to claim 1, characterized in that: The anti-ultraviolet liquid material is prepared by mixing an organic silicon modified resin and iodine, wherein the weight ratio of the organic silicon modified resin to the iodine is (2-6):

1.

4. The uniform color plain concrete according to claim 1, characterized in that: The white inorganic pigment is prepared by mixing water, stearic acid and sodium silicate, wherein the weight ratio of water, stearic acid and sodium silicate is 1:3:

6.

5. The uniform color plain concrete according to claim 1, characterized in that: The coarse aggregate is crushed stone of uniform color, and the weight ratio of large crushed stone to small crushed stone in the coarse aggregate is 8:

2.

6. The uniform color plain concrete according to claim 1, characterized in that: The fine aggregate is selected from medium-coarse sand with uniform color, and the fineness modulus of the fine aggregate is 2.3-2.

5.

7. A method for preparing a uniform color plain concrete according to any one of claims 1 to 6, comprising the following steps: S1: preparing additives; a: pouring 20-30 parts of anti-ultraviolet powder and 20-30 parts of anti-ultraviolet liquid into a blender and stirring to obtain a mixture A; b: Pour 150-200 parts of white inorganic pigment and 200-250 parts of epoxy resin into a blender and stir to obtain a mixture B; c: pouring mixture A and mixture B into a blender and stirring to obtain 350-450 parts of mixture C; d: Pour 10-15 parts of lignin sulfonate water reducer, 5-10 parts of sodium lauryl sulfate, and 20-30 parts of sodium benzoate preservative into a blender and stir to obtain a mixture D; S2: preparing cement; a: Pour 130-150 parts of limestone into the crusher for crushing, and crush the limestone to a particle size of less than 25 mm; b: Pour 20-30 parts of clay, 1-3 parts of iron ore powder and 60-80 parts of water into a grinder and grind to obtain a mixture E; c: Pour the mixture E into a decomposition kiln for calcination. After forging, take it out and cool it for 24 hours; d: Pour the cooled mixture E into a grinder, add 150-200 parts of mixture C and grind again to obtain cement; S3: preparing aggregate; a: Pour 200-250 parts of coarse aggregate and 175-225 parts of fine aggregate into a concrete mixer and mix to obtain a mixture F; b: Pour mixture F and 200-250 parts of mixture C into a mixer and mix them to obtain aggregate; S4: preparing plain concrete; a: pouring cement and aggregate into a mixer and mixing them to obtain a mixture G; b: pouring mixture G and mixture D into a blender and mixing them to obtain mixture H; c: The mixture H was allowed to stand for 24 hours, and then poured into an ultrasonic mixer and mixed evenly to obtain plain concrete.

8. The method for preparing a uniform-colored plain concrete according to claim 7, characterized in that: The forging temperature in the decomposition kiln in step S2-c is 1450°C, and the forging time is 60 minutes.

9. The method for preparing a uniform-colored plain concrete according to claim 7, characterized in that: In step S2, the first grinding speed is 50 r / min and the grinding time is 45 min; the second grinding speed is 70 r / min and the grinding time is 60 min.