Preparation method of noctilucent stone

Abstract

The invention relates to the field of noctilucent stones, and discloses a noctilucent stone preparation method which comprises the following steps: S1, weighing and mixing raw materials, namely weighing the raw materials in parts by weight, pouring the raw materials into stirring equipment, adding water, and sufficiently and uniformly stirring to form a mixture; s2, mold forming: pouring the mixture into a mold; s3, curing: curing the mold in a suitable environment to form a noctilucent stone blank; s4, demolding, and taking out the primarily formed noctilucent stone; and S5, grinding and polishing are conducted, specifically, machine grinding and polishing treatment is conducted on the noctilucent stone obtained after demolding. The noctilucent stone is added into the aggregate, so that the noctilucent stone pier can absorb light energy and automatically emit light without an external power supply, the continuous light emitting effect in the dark is achieved, energy conservation and environmental protection are achieved, the warning, guiding or decorating functions can be provided at night through the light emitting characteristic, and the safety and visual recognition degree of scenes such as road isolation and landscape marks are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of glow stones, and specifically to a method for preparing glow stones. Background Art

[0002] In outdoor scenes such as urban roads, landscape gardens, and leisure areas, stone piers are often used for boundary isolation, path guidance, landscape decoration, etc. In the night environment, due to the lack of an active lighting function, traditional stone piers are difficult to play an effective warning or guiding role in the dark, resulting in a significant weakening of their functionality when the lighting is insufficient. With the improvement of people's requirements for the safety and aesthetics of public facilities, there is an urgent need for a stone pier product that does not require an external power supply, can emit light independently, and adapts to different scene requirements, so as to enhance night visibility, enrich the landscape effect, and improve the use safety.

[0003] Existing traditional stone piers are mostly made of ordinary stones or concrete products, mainly relying on their own colors or external lights for visual recognition. Without lighting assistance at night, their visibility is relatively low, and their functions have obvious limitations. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the present invention provides a method for preparing glow stones, which solves the problems that existing traditional stone piers are mostly made of ordinary stones or concrete products, mainly relying on their own colors or external lights for visual recognition, and their visibility is relatively low without lighting assistance at night, and their functions have obvious limitations.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0006] A glow stone, comprising raw materials in the following parts by weight:

[0007] 80 - 120 parts of a gelling material, 180 - 220 parts of an aggregate, 2 - 3 parts of an organic additive, 20 - 30 parts of an inorganic pigment, 0.2 - 0.4 parts of an inorganic additive, and 40 - 60 parts of water;

[0008] Among them, the gelling material is two inorganic binding materials, and the aggregate includes colored particle aggregate and glow particle aggregate.

[0009] Preferably, the gelling material is composed of black cement and white cement of silicate type, wherein 40 - 60 parts of black cement and 40 - 60 parts of white cement, and the total weight parts of the two are 80 - 120 parts.

[0010] Preferably, the colored particle aggregate is 140 - 160 parts of colored stones, and the glow particle aggregate is 40 - 60 parts of glow stones, and the total mass parts of the two are 180 - 220 parts.

[0011] Preferably, the organic additive is cellulose.

[0012] Preferably, the inorganic pigment is an iron oxide dye.

[0013] Preferably, the inorganic additive is a plastic expansion agent.

[0014] Preferably, the colored stones are colored granular aggregates, and the luminous stones are granular aggregates containing a photoluminescent material.

[0015] By adopting the above technical solutions, the luminous stone pier can absorb light energy and emit light independently without an external power supply, achieving a continuous luminous effect in the dark. This design is both energy-saving and environmentally friendly, and can provide warning, guiding or decorative functions at night through its luminous characteristics, significantly improving the safety and visual recognition in scenarios such as road isolation and landscape identification, solving the problem of the lack of night functions of traditional stone piers, and combining practicality and functionality.

[0016] Preferably, a method for preparing a luminous stone includes the following steps:

[0017] S1. Raw material weighing and mixing: Weigh each raw material by weight, pour it into a stirring device, add water, and stir well to form a mixed material.

[0018] S2. Molding: Pour the mixed material into a mold.

[0019] S3. Curing: Place the mold in a suitable environment for curing to form a luminous stone blank.

[0020] S4. Demolding: Take out the preliminarily formed luminous stone.

[0021] S5. Grinding and polishing: Perform machine grinding and polishing on the demolded luminous stone.

[0022] Preferably, in the S3 step, the temperature of the curing environment is 20 - 30 °C, and the relative humidity is 50% - 70%.

[0023] Preferably, in the S5 step, the machine grinding and polishing are sequentially processed with grinding wheels having increasing mesh numbers, including at least any multiple sets of mesh number combinations of 200 mesh, 400 mesh, 800 mesh, 1500 mesh, and 3000 mesh.

[0024] The present invention provides a method for preparing a luminous stone. It has the following beneficial effects:

[0025] 1. By adding luminous stones to the aggregate in the present invention, the luminous stone pier can absorb light energy and emit light independently without an external power supply, achieving a continuous luminous effect in the dark. This design is both energy-saving and environmentally friendly, and can provide warning, guiding or decorative functions at night through its luminous characteristics, significantly improving the safety and visual recognition in scenarios such as road isolation and landscape identification, solving the problem of the lack of night functions of traditional stone piers, and combining practicality and functionality.

[0026] 2. In the present invention, the cementitious material is a compound of black cement and white cement, combined with cellulose to improve the workability and plasticity of the material, a plastic expansion agent to compensate for shrinkage and prevent cracking, and a grinding and polishing process with increasing mesh numbers to ensure that the luminous stone pier has stable mechanical strength, crack resistance and surface texture. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a flow chart of a method for preparing a luminous stone according to the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0029] Please refer to the appendix Figure 1 , the embodiment of the present invention provides a luminous stone, which includes the following raw materials in parts by weight:

[0030] 80 - 120 parts of cementitious material, 180 - 220 parts of aggregate, 2 - 3 parts of organic additive, 20 - 30 parts of inorganic pigment, 0.2 - 0.4 parts of inorganic additive, 40 - 60 parts of water;

[0031] Among them, the cementitious material is two inorganic bonding materials, and the aggregate includes colored particle aggregate and luminous particle aggregate.

[0032] The cementitious material is composed of black cement and white cement of silicate type, among which 40 - 60 parts of black cement and 40 - 60 parts of white cement, and the total weight parts of the two are 80 - 120 parts.

[0033] The colored particle aggregate is 140 - 160 parts of colored stones, and the luminous particle aggregate is 40 - 60 parts of luminous stones, and the total mass parts of the two are 180 - 220 parts.

[0034] The organic additive is cellulose.

[0035] The inorganic pigment is iron oxide dye.

[0036] The inorganic additive is a plastic expansion agent.

[0037] The colored stones are colored particle aggregates, and the luminous stones are particle aggregates containing photoluminescent materials.

[0038] Specifically, the cementitious materials: black cement and white cement, as silicate inorganic binding materials, generate cementitious products through hydration reactions, forming a network crystal structure among the aggregates, firmly cementing each raw material into a whole, providing the basic mechanical strength and structural stability of the glow stones, and being the core components for realizing the bonding and shaping of the raw materials.

[0039] Colored stones: As colored granular aggregates, the colored stones are evenly dispersed in the cementitious material matrix, endowing the glow stones with diverse color performances. At the same time, as rigid granular fillers, they enhance the compressive strength and wear resistance of the materials, taking into account both decorative and practical properties.

[0040] Glow stones: As functional granular aggregates containing energy storage and luminescent materials, the glow stones can absorb light energy and release it slowly, making the glow stones show a continuous luminous effect in the dark. Together with the colored stones, they constitute the aggregate skeleton, ensuring the unity of the luminous performance and structural strength of the glow stones.

[0041] Cellulose: As an organic polymer additive, cellulose adsorbs moisture through the hydration of molecular chains, forms a three-dimensional network structure in the mixture, improves the water retention and viscosity of the material, enhances the mixing workability, avoids aggregate segregation, makes the mixture easier to form, and ensures the stability of the preparation process.

[0042] Iron oxide dyes: As inorganic pigments, iron oxide dyes utilize the spectral absorption characteristics of iron elements with different valence states to provide the glow stones with rich color regulation capabilities. They have good compatibility with the cementitious material matrix, form a stable color system after dispersion, and have strong weather resistance, ensuring the long-term stability of the glow stones' colors.

[0043] Plastic expansion agent: As an inorganic chemical additive, the plastic expansion agent compensates for the matrix shrinkage through a micro-expansion reaction at the initial stage of cement hydration, offsets the shrinkage stress caused by water evaporation, prevents the formation of surface or internal cracks, and improves the density and durability of the glow stones.

[0044] Water: As a reaction medium and solvent, water participates in the cement hydration reaction, activates the setting and hardening process of the cementitious materials. At the same time, as a dispersion medium, it evenly mixes each raw material to form a plastic mixture, ensuring that the mixture has appropriate fluidity and formability.

[0045] The embodiment of the present invention provides a method for preparing glow stones, including the following steps:

[0046] S1. Weighing and mixing raw materials: Weigh each raw material by weight parts, pour it into a stirring device, add water and stir evenly to form a mixture.

[0047] S2. Molding with a mold: Pour the mixture into a mold.

[0048] S3. Curing: Place the mold in a suitable environment for curing to form a glow-in-the-dark stone blank.

[0049] S4. Demolding: Take out the preliminarily formed glow-in-the-dark stone.

[0050] S5. Grinding and polishing: Conduct machine grinding and polishing on the demolded glow-in-the-dark stone.

[0051] In step S3, the temperature of the curing environment is 20 - 30°C, and the relative humidity is 50% - 70%.

[0052] Specifically, an intelligent constant temperature and humidity curing box is used to control the curing environment. The temperature is stably maintained at 20 - 30°C through the cooperation of a temperature sensor with heating and cooling devices; the relative humidity is maintained at 50% - 70% by using a humidity sensor to link a humidifier and a dehumidification system. Porous partitions are set inside the box to ensure air circulation, and a temperature and humidity recorder monitors the data in real time. When the limits are exceeded, an audible and visual alarm is triggered and information is pushed. This environment ensures the normal hydration of cement, avoids problems such as insufficient strength, dry shrinkage cracks, and surface efflorescence caused by abnormal temperature and humidity, and guarantees the quality of the glow-in-the-dark stone blank.

[0053] In step S5, the machine grinding and polishing are carried out successively using grinding wheels with increasing mesh numbers, including at least any multiple sets of mesh number combinations of 200 mesh, 400 mesh, 800 mesh, 1500 mesh, and 3000 mesh.

[0054] Specifically, a numerically controlled grinding and polishing integrated machine is used to perform surface treatment on the glow-in-the-dark stone. First, a 200-mesh coarse grinding wheel is used, with a rotational speed of 1500 revolutions per minute and a feed rate of 5 millimeters per minute, to quickly remove the burrs and uneven parts on the surface of the blank and preliminarily trim the shape; then, a 400-mesh grinding wheel is used, the rotational speed is adjusted to 2000 revolutions per minute, and the feed rate is reduced to 3 millimeters per minute to eliminate the coarse scratches left by the 200-mesh grinding wheel; subsequently, an 800-mesh grinding wheel is used to further refine the surface, with a rotational speed of 2500 revolutions per minute and a feed rate of 2 millimeters per minute, to smooth the fine lines; then, a 1500-mesh fine grinding wheel is used for fine grinding, with a rotational speed of 3000 revolutions per minute and a feed rate of 1.5 millimeters per minute, to make the surface reach a high flatness; finally, a 3000-mesh polishing wheel is used, in combination with a special polishing paste, to polish at a high speed of 3500 revolutions per minute, completely eliminating the fine traces, making the surface of the glow-in-the-dark stone present a mirror-like luster, and reducing the roughness Ra value to below 0.2 μm, improving the aesthetics and texture of the finished product.

[0055] The following is introduced in combination with specific embodiments:

[0056] Example 1: High-brightness glow-in-the-dark stone pier

[0057] Raw material composition (parts by weight), cementitious materials: 50 parts of black cement, 50 parts of white cement, aggregates: 130 parts of ordinary stones, 70 parts of highly photoluminescent luminous stones, organic additives: 2.5 parts of cellulose, inorganic pigments: 25 parts, inorganic additives: 0.3 parts of plastic expansion agent, water: 45 parts

[0058] Preparation process

[0059] S1. Raw material mixing: Using a double planetary mixer, add 50 parts of black cement, 50 parts of white cement, 130 parts of ordinary stones, and 70 parts of highly photoluminescent luminous stones in sequence by weight, and dry mix for 3 minutes to preliminarily disperse the materials; then add 2.5 parts of cellulose, 25 parts of inorganic pigments, 0.3 parts of plastic expansion agent, and 45 parts of water, and wet mix for 7 minutes to ensure that all raw materials are evenly distributed and the mixture reaches a suitable state for molding.

[0060] S2. Molding in a mold: Use a cylindrical steel mold with a diameter of 300 mm and a height of 400 mm, and spray Teflon release agent on the inner wall. Add the mixed materials to the mold in three times, and vibrate for 40 seconds after each addition to remove internal air bubbles and make the materials densely fill the mold.

[0061] S3. Curing: Place the mold filled with materials in a constant temperature and humidity curing box at a temperature of 28 °C and a relative humidity of 60% for curing to accelerate the cement hydration reaction and form a solid pier structure.

[0062] S4. Demolding: After the strength of the pier reaches the standard, carefully demold it using a hydraulic demolding machine to avoid damaging the surface of the pier.

[0063] S5. Grinding and polishing: Use 200-mesh coarse grinding, 400-mesh semi-fine grinding, 800-mesh fine grinding, 1500-mesh fine grinding, and 3000-mesh polishing wheels to grind the pier in sequence, so that the surface roughness Ra of the pier ≤ 0.15 μm and shows a high gloss.

[0064] Example 2: Medium-brightness luminous pier

[0065] Raw material composition (parts by weight)

[0066] Cementitious materials: 50 parts of black cement, 50 parts of white cement, aggregates: 150 parts of ordinary stones, 50 parts of medium-photoluminescent luminous stones, organic additives: 2.5 parts of cellulose, inorganic pigments: 25 parts, inorganic additives: 0.3 parts of plastic expansion agent, water: 43 parts

[0067] Preparation process

[0068] S1. Raw material mixing: Using a double-shaft forced mixer, first dry-mix 50 parts of black cement, 50 parts of white cement, 150 parts of ordinary stones, and 50 parts of medium energy storage performance luminous stones for 2 minutes; then add 2.5 parts of cellulose, 25 parts of inorganic pigments, 0.3 parts of plastic expansion agent, and 43 parts of water, and wet-mix for 5 minutes, controlling the slump of the mixture to remain at a suitable 100 mm.

[0069] S2. Molding with a mold: Use a cube steel mold with a side length of 250 mm and a height of 350 mm. Add the uniformly mixed material into the mold at one time and vibrate for 35 seconds to ensure the density of the material.

[0070] S3. Curing: In an environment with a temperature of 25°C and a relative humidity of 65%, let the mold stand still for curing to ensure sufficient hydration of the cement and the strength of the stone pier meets the standard.

[0071] S4. Demolding: Gently tap the edge of the mold manually and carefully demold. After demolding, check the surface quality of the stone pier.

[0072] S5. Grinding and polishing: Use 200-mesh, 400-mesh, 800-mesh, and 3000-mesh grinding wheels to grind the stone pier so that the surface of the stone pier presents a matte texture.

[0073] Example 3: Low-brightness luminous stone pier

[0074] Raw material composition (parts by weight)

[0075] Binder: 50 parts of black cement, 50 parts of white cement, Aggregate: 170 parts of ordinary stones, 30 parts of low energy storage performance luminous stones, Organic additive: 2.5 parts of cellulose, Inorganic pigment: 25 parts, Inorganic additive: 0.3 parts of plastic expansion agent, Water: 40 parts

[0076] Preparation process

[0077] S1. Raw material mixing: First dry-mix 50 parts of black cement, 50 parts of white cement, 170 parts of ordinary stones, and 30 parts of low energy storage performance luminous stones for 2 minutes; then add 2.5 parts of cellulose, 25 parts of inorganic pigments, 0.3 parts of plastic expansion agent, and 40 parts of water, and wet-mix for 4 minutes, controlling the slump of the mixture at 95 mm.

[0078] S2. Molding with a mold: Select a frustum steel mold with an upper diameter of 200 mm, a lower diameter of 250 mm, and a height of 300 mm. Add the material to the mold in two batches, and vibrate for 30 seconds after each addition to make the material fill the mold and discharge air bubbles.

[0079] S3. Curing: Place the mold in an environment with a temperature of 22°C and a relative humidity of 70% for curing to reduce the water evaporation rate and ensure the curing quality of the stone pier.

[0080] S4. Demolding: Use a rubber hammer to assist in demolding to ensure the stone pier is intact.

[0081] S5. Grinding and Polishing: Only use 200-mesh coarse grinding and 800-mesh fine grinding wheels to grind the stone pier, retaining the original texture of some particles.

[0082] Table 1: Comparison Table of Examples

[0083]

[0084]

[0085] Explanation of Comparison Items:

[0086] Self-luminous Property - Initial Brightness: It refers to the immediate luminous intensity of the luminous stone pier when it first enters the dark environment after absorbing light energy. The higher the value, the stronger the initial visibility in the dark, which is mainly affected by the content and quality of the luminous material.

[0087] Self-luminous Duration: It represents the duration from the start of luminescence to the brightness dropping to the recognizable threshold by the human eye after the stone pier is fully charged with energy, reflecting its energy storage and endurance ability. A long duration means a long effective working time at night.

[0088] Self-luminous Brightness after 6 Hours: Simulates the actual brightness of the stone pier after continuous luminescence for 6 hours, reflecting its long-term luminescence stability. A high value indicates that it can still maintain an effective warning or decorative function in the middle and late stages of the night.

[0089] Compressive Strength: It refers to the maximum ability of the stone pier to withstand vertical pressure until it breaks, measuring its structural durability. The higher the compressive strength, the more adaptable it is to heavy load scenarios such as vehicle rolling and heavy object collision.

[0090] Surface Characteristics: Describe the texture and gloss of the stone pier surface, including mirror gloss, matte texture, and original particle texture. Different characteristics affect the visual effect and environmental adaptability, and need to be selected according to the usage scenario.

[0091] Applicable Scenarios: According to the self-luminous intensity, compressive ability, and surface characteristics of the stone pier, different usage environments are matched, from high-intensity warning on urban main roads to low-intensity decoration in scenic areas, achieving a balance between functionality and decoration.

[0092] The examples and comparison tables show that by adjusting the ratio of luminous aggregates, surface treatment processes, etc., luminous stone piers with different brightness levels of high, medium, and low can be prepared. Their self-luminous intensity, duration, compressive ability, and surface characteristics form gradient differences, respectively adapting to scenarios such as warning on urban main roads, guiding on community footpaths, and landscape decoration.

[0093] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A luminous stone, characterized in that: The invention comprises the following raw materials in parts by weight: 80-120 parts of cementitious materials, 180-220 parts of aggregates, 2-3 parts of organic additives, 20-30 parts of inorganic pigments, 0.2-0.4 parts of inorganic additives, 40-60 parts of water; The cementitious materials are two kinds of inorganic bonding materials, and the aggregates include colored particle aggregates and luminous particle aggregates.

2. A luminous stone according to claim 1, characterized in that: The cementitious material is a composite of silicate black cement and white cement, wherein the black cement is 40-60 parts, the white cement is 40-60 parts, and the total weight of the two is 80-120 parts.

3. The luminous stone according to claim 1, characterized in that: The colored particle aggregate is 140-160 parts of colored stones, and the luminous particle aggregate is 40-60 parts of luminous stones, and the total weight of the two is 180-220 parts.

4. The luminous stone according to claim 1, characterized in that: The organic additive is cellulose.

5. The luminous stone according to claim 1, characterized in that: The inorganic pigment is an iron oxide dye.

6. The luminous stone according to claim 1, characterized in that: The inorganic additive is a plastic expansion agent.

7. The luminous stone according to claim 1, characterized in that: The colored stones are colored granular aggregates, and the luminous stones are granular aggregates containing light-storing and luminescent materials.

8. A method for preparing luminous stone, characterized in that: A luminous stone according to any one of claims 1 to 7, comprising the following steps: S1. Weighing and mixing raw materials: weigh each raw material by weight, pour it into a stirring device, add water, and stir it thoroughly to form a mixture; S2, mold forming, pouring the mixture into the mold; S3, curing, placing the mold in a suitable environment for curing to form a luminous stone blank; S4, demoulding, taking out the initially formed luminous stone; S5. Grinding and polishing: the luminous stone after demoulding is machine-grinded and polished.

9. A method for preparing luminous stone according to claim 8, characterized in that: In the step S3, the temperature of the curing environment is 20-30° C., and the relative humidity is 50%-70%.

10. The method for preparing luminous stone according to claim 8, characterized in that: In the step S5, the machine grinding and polishing is performed sequentially using grinding wheels with increasing mesh sizes, including at least any multiple mesh combinations of 200 mesh, 400 mesh, 800 mesh, 1500 mesh, and 3000 mesh.

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