Artistic plastic cement composite additive and application thereof

Abstract

The application discloses artistic plastic cement composite additives and application thereof, and relates to the technical field of composite cement. The artistic plastic cement composite additives are prepared from the following raw materials in percentage by weight: a retarding agent 0.5-2%, a water-retaining thickening agent 2-6%, a fiber reinforcing agent 1-4%, mineral pigments 70-85%, a thixotropic lubricant 3-7% and functional additives 5-10%. The retarding agent is at least one of tartaric acid, citric acid, sodium gluconate or a lignin sulfonate; the water-retaining thickening agent is selected from hydroxypropyl methylcellulose or methylcellulose; and the fiber reinforcing agent is at least one of polypropylene fiber, glass fiber and lignin fiber. The artistic plastic cement composite additives and application thereof have the advantages that, through the synergy of the retarding agent, the water-retaining thickening agent, the fiber reinforcing agent and the thixotropic lubricant, the artistic plastic cement composite additives have superior comprehensive performance in artistic plastic cement, and the strength and construction performance are taken into account.

Description

Technical Field

[0001] This invention relates to the field of composite cement technology, and in particular to an artistic sculpting cement composite additive and its application. Background Technology

[0002] The existing artistic sculpting cement has the following main problems in practical applications: First, most products require secondary coloring, which makes the construction process complicated and the color durability insufficient; Second, the initial setting time is too short, especially when construction is carried out in high-temperature environments, resulting in insufficient sculpting window and difficulty in meeting the needs of fine sculpting; Third, micro-cracks are prone to occur after molding, affecting the overall quality and structural stability of the work; Fourth, on-site construction often relies on manual experience to adjust the mixing, making it difficult to achieve standardized operations, resulting in poor construction efficiency and inconsistent results. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides an artistic shaping cement composite additive and its application. Specifically, it includes the following technical solutions: In a first aspect, an artistic sculpting cement composite additive is provided, which is composed of the following raw materials by weight percentage: 0.5%-2% retarder, 2%-6% water-retaining thickener, 1%-4% fiber reinforcing agent, 70%-85% mineral pigment, 3%-7% thixotropic lubricant, and 5%-10% functional additives; The retarder is at least one of tartaric acid, citric acid, sodium gluconate, or lignin sulfonate; the water-retaining and thickening agent is selected from hydroxypropyl methylcellulose or methylcellulose; the fiber reinforcing agent is at least one of polypropylene fiber, glass fiber, and lignin fiber; the thixotropic lubricant is composed of starch ether and bentonite; and the functional additive is a polycarboxylate superplasticizer.

[0004] Furthermore, the retarder is selected from citric acid and sodium gluconate, wherein the weight ratio of citric acid to sodium gluconate is 1:(6-11).

[0005] The retarder is made with sodium gluconate as the base material and citric acid as an auxiliary additive. The multi-component compound retarder can extend the initial setting time of cement to 8-12 hours. It is more stable than a single component and can be adapted to different carving times.

[0006] Preferably, the water-retaining thickener is hydroxypropyl methylcellulose (HPMC, 200,000 viscosity). A high proportion of hydroxypropyl methylcellulose ensures a mortar water retention rate of ≥90%, prevents rapid surface drying and cracking, and enhances plasticity and adhesion.

[0007] Furthermore, the fiber reinforcing agent is selected from short-cut polypropylene fibers with a length of 1-3 mm.

[0008] Preferably, the fiber reinforcing agent is selected from short-cut polypropylene fibers with a length of 2 mm.

[0009] The length of the fiber reinforcing agent is matched with the depth of the engraved texture during use, and its crack resistance is improved by 30% after uniform dispersion, thus avoiding fine cracks after the artificial stone is formed.

[0010] Furthermore, the mineral pigment is a combination of iron oxide yellow and iron oxide red.

[0011] Furthermore, the weight ratio of the iron oxide yellow to the iron oxide red is (2.5-3):1.

[0012] The iron oxide yellow and iron oxide red are mixed in a weight ratio of 3:1 to 10:4 to achieve a natural yellowish-brown color. The high proportion of mineral pigments ensures a uniform base color. For example, based on a total mineral pigment volume of 4000g, this includes 3000g of iron oxide yellow and 1000g of iron oxide red (other colors of mineral pigments, such as cinnabar and malachite green, can also be used depending on the design requirements), eliminating the need for additional color matching.

[0013] Furthermore, the weight ratio of bentonite to starch ether is 1:(1-20).

[0014] Preferably, the weight ratio of bentonite to starch ether is 1:(8-10).

[0015] The thixotropic lubricant uses a combination of starch ether as the main ingredient and bentonite as an auxiliary ingredient. Through the synergistic thickening effect of the two, it forms a stable gel structure in a static state to prevent sedimentation, and rapidly reduces viscosity under construction shear force for easy application, significantly improving the thixotropic shaping performance of the slurry. The thixotropic lubricant can increase the viscosity of the mortar without increasing resistance, resulting in clear textures without dripping during carving, making it suitable for imitating the "wrinkled and porous" textures of rocks.

[0016] The functional additives can reduce the water-cement ratio to 0.45-0.5, improve the surface hardness of the plastic stone, reduce post-weathering, and achieve a compressive strength of ≥30MPa after 28 days.

[0017] Furthermore, the aforementioned artistic sculpting cement composite additive is composed of the following raw materials by weight percentage: 0.8%-1.5% retarder, 3%-5% water-retaining and thickening agent, 1.5%-3% fiber reinforcing agent, 75%-82% mineral pigment, 5%-6% thixotropic lubricant, and 7%-8% functional additives.

[0018] Preferably, the artistic sculpting cement composite additive is composed of the following raw materials by weight percentage: 1% retarder, 4% water-retaining thickener, 2% fiber reinforcing agent, 80% mineral pigment, 5% thixotropic lubricant, and 8% functional additives.

[0019] Preferably, based on a standard of 5000g of total amount of artistic shaping cement composite additives, it includes 50g of retarder, 200g of water-retaining and thickening agent, 100g of fiber reinforcing agent, 4000g of mineral pigment, 250g of thixotropic lubricant and 400g of functional additives.

[0020] In a second aspect, an artistic sculpting cement is provided, comprising the artistic sculpting cement composite additive described in the first aspect and cement, wherein the weight ratio of the artistic sculpting cement composite additive to cement is 1:10.

[0021] Furthermore, the aforementioned artistic sculpting cement also includes fine river sand and water.

[0022] Thirdly, a method for preparing artistic sculpting cement according to the second aspect is provided, comprising the following steps: mixing cement and artistic sculpting cement composite additives according to the weight ratio for 1-3 minutes, then adding fine river sand and water, and mechanically mixing for 3-6 minutes to obtain artistic sculpting cement.

[0023] Compared with the prior art, the present invention has the following beneficial effects: 1. Standardized construction and precise proportioning: By premixing each component of the composite additive according to a precise weight percentage, and using a method of adding one 5kg bag of additive for every 50kg bag of cement, no on-site calculation is required; the entire bag can be added, greatly improving construction convenience and consistency of proportions.

[0024] 2. One-time molding, no need for secondary coloring: By directly integrating a high proportion (70%-85%) of mineral pigments into the cement system, the cement base color is ensured to be uniform and full, achieving coloring in one molding without the need for additional coloring.

[0025] 3. Strong water retention, extending the carving window: The addition of a specific proportion of water-retaining and thickening agent effectively solves the problem of rapid water evaporation during outdoor construction, significantly extending the carving operation time.

[0026] 4. Retarding adapts to different temperature environments: The retarder formula can be adapted to various temperature conditions and can still maintain an initial setting time of ≥6 hours in high-temperature environments above 30℃.

[0027] 5. Thixotropic and shape-preserving, even and non-sagging thick coating: The thixotropic lubricant ensures that it does not easily sag during application, and the combination with a high proportion of mineral pigments ensures that the color remains uniform even when the coating is thick.

[0028] 6. Synergistic effect, balancing strength and workability: Polycarboxylate superplasticizer effectively compensates for the strength reduction that may be caused by high addition of thixotropic lubricant and mineral pigment; the three work together to maintain cement strength while ensuring excellent workability.

[0029] 7. Superior overall performance, can replace carving cement: Compared with existing carving cement, this invention has a price advantage, readily available base materials (no customization required), and strength and plasticity that meet the grade of carving cement. Detailed Implementation

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0032] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0033] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0034] To better understand the technical content of the present invention, the technical solution of the present invention will be further introduced and explained below with reference to specific embodiments.

[0035] In this experimental example and comparative example, the cement used is silicate cement.

[0036] Example 1 An artistic shaping cement composite additive (5000g) is provided, which is composed of the following raw materials by weight: 50g retarder, 200g water-retaining thickener, 100g fiber reinforcing agent, 4000g mineral pigment, 250g thixotropic lubricant and 400g functional additives. The retarder is composed of citric acid (5g) and sodium gluconate (45g), wherein the weight ratio of citric acid to sodium gluconate is 1:9; The water-retaining and thickening agent is hydroxypropyl methylcellulose (HPMC, 200,000 viscosity). The fiber reinforcing agent is selected from short-cut polypropylene fibers with a length of 2 mm; The mineral pigment is composed of iron oxide yellow (3000g) and iron oxide red (1000g), and the weight ratio of iron oxide yellow to iron oxide red is 3:1. The thixotropic lubricant is composed of starch ether (hydroxypropyl starch ether, 225g) and bentonite (sodium bentonite, 25g), wherein the weight ratio of bentonite to starch ether is 1:9. The functional additive is a polycarboxylate superplasticizer.

[0037] Example 2 An artistic shaping cement composite additive (5000g) is provided, which is composed of the following raw materials by weight: 60g retarder, 200g water-retaining thickener, 100g fiber reinforcing agent, 3970g mineral pigment, 250g thixotropic lubricant and 420g functional additives. The retarder is composed of citric acid (5g) and sodium gluconate (55g), wherein the weight ratio of citric acid to sodium gluconate is 1:11. The water-retaining and thickening agent is selected from hydroxypropyl methylcellulose or methylcellulose, and the water-retaining and thickening agent is hydroxypropyl methylcellulose (HPMC, 200,000 viscosity). The fiber reinforcing agent is selected from short-cut polypropylene fibers with a length of 2 mm; The mineral pigment is composed of iron oxide yellow (2900g) and iron oxide red (1070g); The thixotropic lubricant is a combination of starch ether (hydroxypropyl starch ether, 225g) and bentonite (sodium bentonite, 25g), wherein the weight ratio of bentonite to starch ether is 1:9. The functional additive is a polycarboxylate superplasticizer.

[0038] Example 3 An artistic shaping cement composite additive (5000g) is provided, which is composed of the following raw materials by weight: 58g retarder, 200g water-retaining thickener, 100g fiber reinforcing agent, 3980g mineral pigment, 250g thixotropic lubricant and 412g functional additives. The retarder is composed of citric acid (8g) and sodium gluconate (50g), wherein the weight ratio of citric acid to sodium gluconate is 1:6.25. The water-retaining and thickening agent is hydroxypropyl methylcellulose (HPMC, 200,000 viscosity). The fiber reinforcing agent is selected from short-cut polypropylene fibers with a length of 2 mm; The mineral pigment is composed of iron oxide yellow (2900g) and iron oxide red (1080g); The thixotropic lubricant is composed of starch ether (hydroxypropyl starch ether, 225g) and bentonite (sodium bentonite, 25g), wherein the weight ratio of bentonite to starch ether is 1:9. The functional additive is a polycarboxylate superplasticizer.

[0039] Compare with Example 1 An artistic shaping cement composite additive (5000g) is provided, which is composed of the following raw materials by weight: 30g retarder, 220g water-retaining thickener, 100g fiber reinforcing agent, 4100g mineral pigment, 250g thixotropic lubricant and 300g functional additives. The retarder is citric acid; the water-retaining and thickening agent is selected from hydroxypropyl methylcellulose; the fiber reinforcing agent is glass fiber; the mineral pigment is composed of iron oxide yellow (2800g) and iron oxide red (1300g); the thixotropic lubricant is starch ether; and the functional additive is polycarboxylate superplasticizer.

[0040] Compare with Example 2 An artistic shaping cement composite additive (5000g) is provided, which is composed of the following raw materials by weight: 250g water-retaining thickener, 4100g mineral pigment, 250g thixotropic lubricant and 400g functional additives; The water-retaining and thickening agent is hydroxypropyl methylcellulose (HPMC, 200,000 viscosity). The mineral pigment is composed of iron oxide yellow (3000g) and iron oxide red (1100g); The thixotropic lubricant is composed of starch ether (hydroxypropyl starch ether, 225g) and bentonite (sodium bentonite, 25g), wherein the weight ratio of bentonite to starch ether is 1:9. The functional additive is a polycarboxylate superplasticizer.

[0041] Compare with Example 3 An artistic shaping cement composite additive (5000g) is provided, which is composed of the following raw materials by weight: 50g retarder, 200g fiber reinforcing agent, 4250g mineral pigment, and 500g functional additive; The retarder is composed of citric acid (5g) and sodium gluconate (45g), wherein the weight ratio of citric acid to sodium gluconate is 1:9; The fiber reinforcing agent is selected from short-cut polypropylene fibers with a length of 2 mm; The mineral pigment is composed of iron oxide yellow (3100g) and iron oxide red (1150g); The functional additive is a polycarboxylate superplasticizer.

[0042] Compare with Example 4 An artistic shaping cement composite additive (5000g) is provided, which is composed of the following raw materials by weight: 200g water-retaining thickener, 100g fiber reinforcing agent, 4050g mineral pigment, 250g thixotropic lubricant and 400g functional additives; The water-retaining and thickening agent is hydroxypropyl methylcellulose (HPMC, 200,000 viscosity). The fiber reinforcing agent is selected from short-cut polypropylene fibers with a length of 2 mm; The mineral pigment is composed of iron oxide yellow (3000g) and iron oxide red (1050g); The thixotropic lubricant is composed of starch ether (hydroxypropyl starch ether, 225g) and bentonite (sodium bentonite, 25g), wherein the weight ratio of bentonite to starch ether is 1:9. The functional additive is a polycarboxylate superplasticizer.

[0043] Compare with Example 5 An artistic shaping cement composite additive (5000g) is provided, which is composed of the following raw materials by weight: 150g retarder, 200g water-retaining thickener, 100g fiber reinforcing agent, 3900g mineral pigment, 250g thixotropic lubricant and 400g functional additives. The retarder is composed of citric acid (15g) and sodium gluconate (135g), wherein the weight ratio of citric acid to sodium gluconate is 1:9. The water-retaining and thickening agent is hydroxypropyl methylcellulose (HPMC, 200,000 viscosity). The fiber reinforcing agent is selected from short-cut polypropylene fibers with a length of 2 mm; The mineral pigment is composed of iron oxide yellow (2900g) and iron oxide red (1000g), and the weight ratio of iron oxide yellow to iron oxide red is 2.9:1; The thixotropic lubricant is composed of starch ether (hydroxypropyl starch ether, 225g) and bentonite (sodium bentonite, 25g), wherein the weight ratio of bentonite to starch ether is 1:9. The functional additive is a polycarboxylate superplasticizer.

[0044] Experimental Example 1 An art-shaped cement is provided, which is composed of the following raw materials by weight: 5 kg of art-shaped cement composite additive, 50 kg of cement, 90 kg of fine river sand and 25 kg of water as in Example 1; the weight ratio of the art-shaped cement composite additive to the cement is 1:10.

[0045] The method for preparing the artistic sculpting cement includes the following steps: mixing cement and artistic sculpting cement composite additives according to the weight ratio for 2 minutes to ensure that the mineral pigments are evenly dispersed; then adding fine river sand and water, and mechanically stirring for 4 minutes until a paste is formed to obtain artistic sculpting cement.

[0046] The preparation methods of the artistic shaped cement in Experimental Examples 2-3 and Comparative Examples 1-6 are the same as those in Experimental Example 1.

[0047] Experimental Example 2 An art-shaped cement is provided, which is composed of the following raw materials by weight: 5 kg of art-shaped cement composite additive, 50 kg of cement, 90 kg of fine river sand and 25 kg of water as described in Example 2; the weight ratio of the art-shaped cement composite additive to the cement is 1:10.

[0048] Experimental Example 3 An art-shaped cement is provided, which is composed of the following raw materials by weight: 5 kg of art-shaped cement composite additive, 50 kg of cement, 90 kg of fine river sand and 25 kg of water as described in Example 3; the weight ratio of the art-shaped cement composite additive to the cement is 1:10.

[0049] Comparative Example 1 An art-shaped cement is provided, which is composed of the following raw materials by weight: 5 kg of art-shaped cement composite additive, 50 kg of cement, 90 kg of fine river sand and 25 kg of water, as described in Comparative Example 1; the weight ratio of the art-shaped cement composite additive to the cement is 1:10.

[0050] Comparative Example 2 An art-shaped cement is provided, which is composed of the following raw materials by weight: 5 kg of art-shaped cement composite additive, 55 kg of cement, 90 kg of fine river sand and 20 kg of water, as described in Comparative Example 1; the weight ratio of the art-shaped cement composite additive to the cement is 1:11.

[0051] Comparative Example 3 An art-shaped cement is provided, which is composed of the following raw materials by weight: 5 kg of art-shaped cement composite additive, 50 kg of cement, 90 kg of fine river sand and 25 kg of water, as described in Comparative Example 2; the weight ratio of the art-shaped cement composite additive to the cement is 1:10.

[0052] Comparative Example 4 An art-shaped cement is provided, which is composed of the following raw materials by weight: 5 kg of art-shaped cement composite additive, 50 kg of cement, 90 kg of fine river sand and 25 kg of water, as described in Comparative Example 3; the weight ratio of the art-shaped cement composite additive to the cement is 1:10.

[0053] Comparative Example 5 An art-shaped cement is provided, which is composed of the following raw materials by weight: 5 kg of art-shaped cement composite additive, 50 kg of cement, 90 kg of fine river sand and 25 kg of water, as described in Comparative Example 4; the weight ratio of the art-shaped cement composite additive to the cement is 1:10.

[0054] Comparative Example 6 An art-shaped cement is provided, which is composed of the following raw materials by weight: 5 kg of art-shaped cement composite additive, 50 kg of cement, 90 kg of fine river sand and 25 kg of water, as described in Comparative Example 5; the weight ratio of the art-shaped cement composite additive to the cement is 1:10.

[0055] Performance testing: 1. Initial setting time test The tests were conducted according to the relevant provisions of GB / T 1346-2011 "Test Methods for Standard Consistency Water Requirement, Setting Time and Soundness of Cement". The artistic sculpting cement pastes prepared in Test Examples 1-3 and Comparative Examples 1-6 were placed into molds, and the initial setting time of the cement was determined using a Vicat apparatus under standard curing conditions (temperature 20±2℃, relative humidity ≥90%). Timing was taken from the moment the cement came into contact with water until the needle penetrated 4±1 mm into the paste to the bottom of the mold; this was recorded as the initial setting time. Each sample was tested three times, and the average value was taken.

[0056] 2.28-day compressive strength test The tests were conducted according to the relevant provisions of GB / T 17671-2021 "Test Method for Strength of Cement Mortar (ISO Method)". The artistic sculpting cement slurry prepared in Test Examples 1-3 and Comparative Examples 1-6 was injected into triple molds measuring 40mm × 40mm × 160mm and compacted on a vibrating table. The specimens were cured under standard curing conditions (temperature 20±1℃, relative humidity ≥90%) for 24 hours before demolding, and then continued curing until 28 days of age. The compressive strength was tested using a cement mortar compressive strength tester at a loading rate of 2.4kN / s. The failure load was recorded, and the compressive strength value was calculated. Three specimens were tested for each sample, and the average value was taken.

[0057] 3. Surface drying and cracking test The artistic shaping cement slurry prepared in Experiments 1-3 and Comparative Examples 1-6 was evenly applied to a 300mm×300mm×10mm flat mold and naturally cured for 72 hours under standard curing conditions (temperature 20±2℃, relative humidity 50±5%). After curing, the cement surface was visually observed under natural light to check for drying cracks. The observation results were recorded as "no cracks", "minor cracks", or "cracks".

[0058] 4. Detection of minute cracks The tests were conducted according to the relevant provisions of JC / T 2381-2016 "Test Method for Crack Resistance of Plastering Mortar". The artistic sculpting cement slurry prepared in Test Examples 1-3 and Comparative Examples 1-6 was applied to fiber cement boards (400mm × 400mm × 10mm) with a thickness of 10mm, and the surface was smoothed. After curing under standard conditions (temperature 20±2℃, relative humidity 50±5%) for 72 hours, the cement surface was observed using a 40x stereomicroscope to check for the presence of microcracks. Five fields of view were randomly selected for observation of each sample, and the presence or absence of microcracks was recorded.

[0059] 5. Texture clarity and flowability test The artistic sculpting cement slurries prepared in Examples 1-3 and Comparative Examples 1-6 were applied to fiber cement boards (300mm × 300mm × 10mm) to a thickness of 15mm. Using carving tools, simulated rock textures (including straight lines, curves, and cross lines) with a depth of 5mm were created on the cement surface. After standing for 30 minutes under standard curing conditions (temperature 20±2℃, relative humidity 50±5%), the retention of the texture was observed. The evaluation criteria are as follows: Clear and without flow: The texture has sharp edges and a complete outline, with no obvious deformation or flow marks; Relatively clear, with slight flow: the texture is basically discernible, but the edges are slightly blurred or collapsed; Unclear and flowing: The texture is severely distorted or disappears, with obvious signs of flowing.

[0060] Each sample was tested three times, and the consistent evaluation results were used.

[0061] The performance of the artistic shaped cements from Experimental Examples 1-3 and Comparative Examples 1-6 was tested, and the test results are shown in Table 1 below: Table 1. Test results of the performance of art-shaped cement in Experiments 1-3 and Comparative Examples 1-6 As shown in Table 1, the artistic shaped cement of the present invention has a good retarding effect, which can increase the 28-day compressive strength of the artistic shaped cement and the surface strength of the shaped stone reaches ≥30Mpa.

[0062] In summary, this invention provides an artistic shaping cement composite additive and its application, which has the following advantages: 1. Crack resistance: The use of fiber reinforcing agents can improve crack resistance and reduce the risk of cracking; 2. Alternative to Sculpting Cement: The resulting artistic sculpting cement offers superior strength, malleability, and cost-effectiveness compared to traditional sculpting cement. 3. Easy to shape: Thixotropic lubricant improves viscosity and shape retention, and retarder extends initial setting to 8-12 hours, making it easy to shape and sculpt. 4. Colorfast: The addition of mineral pigments allows the artistic sculpted cement to be colored in one molding process, and the base color will never fade.

[0063] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An artistic shaping cement composite additive, characterized in that, It is composed of the following raw materials by weight percentage: 0.5%-2% retarder, 2%-6% water-retaining thickener, 1%-4% fiber reinforcing agent, 70%-85% mineral pigment, 3%-7% thixotropic lubricant, and 5%-10% functional additives; The retarder is at least one of tartaric acid, citric acid, sodium gluconate, or lignin sulfonate; the water-retaining and thickening agent is selected from hydroxypropyl methylcellulose or methylcellulose; the fiber reinforcing agent is at least one of polypropylene fiber, glass fiber, and lignin fiber; the thixotropic lubricant is composed of starch ether and bentonite; and the functional additive is a polycarboxylate superplasticizer.

2. The artistic shaping cement composite additive according to claim 1, characterized in that, The retarder is selected from citric acid and sodium gluconate, and the weight ratio of citric acid to sodium gluconate is 1:(6-11).

3. The artistic shaping cement composite additive according to claim 1, characterized in that, The fiber reinforcing agent is selected from short-cut polypropylene fibers with a length of 1-3 mm.

4. The artistic shaping cement composite additive according to claim 1, characterized in that, The mineral pigment is a combination of iron oxide yellow and iron oxide red.

5. The artistic shaping cement composite additive according to claim 4, characterized in that, The weight ratio of iron oxide yellow to iron oxide red is (2.5-3):

1.

6. The artistic shaping cement composite additive according to claim 1, characterized in that, The weight ratio of bentonite to starch ether is 1:(1-20).

7. The artistic shaping cement composite additive according to claim 1, characterized in that, It is composed of the following raw materials by weight percentage: 0.8%-1.5% retarder, 3%-5% water-retaining thickener, 1.5%-3% fiber reinforcing agent, 75%-82% mineral pigment, 5%-6% thixotropic lubricant and 7%-8% functional additives.

8. An artistic sculpting cement, characterized in that, The product comprises the artistic shaping cement composite additive as described in any one of claims 1-7 and cement, wherein the weight ratio of the artistic shaping cement composite additive to cement is 1:

10.

9. The artistic sculpting cement according to claim 8, characterized in that, It also includes fine river sand and water.

10. A method for preparing artistic sculpting cement according to claim 9, characterized in that, Includes the following steps: Mix cement and artistic sculpting cement composite additives according to the weight ratio for 1-3 minutes, then add fine river sand and water, and mechanically mix for 3-6 minutes to obtain artistic sculpting cement.

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