Solid waste anti-cracking putty

Abstract

The application belongs to the technical field of building materials, and particularly relates to a solid waste anti-cracking putty paste, which comprises 20-30 parts of latex, 60-70 parts of talcum powder, 10-20 parts of quartz sand and 20-25 parts of water; the putty paste further comprises 10-15 parts of cement, 10-15 parts of solid waste active powder and 10-15 parts of water absorption resin by weight; in the application, the water absorption resin is added in the putty paste, so that the water content in the putty paste can be increased in a certain proportion, and the putty paste is not too watery, the collapsibility of the putty paste after coating is not too large, and the water in the water absorption resin can be released outward after heating, so that the water content on the surface of the water absorption resin can be maintained, the hydration reaction on the surface of the putty paste can be kept uniform, the concentration of shrinkage stress in the hardening process can be avoided, and the generation of surface cracks can be effectively avoided.

Description

Technical Field

[0001] This invention belongs to the field of building materials technology, specifically a solid waste anti-crack putty. Background Technology

[0002] The main function of putty powder, which is frequently used in construction, is to fill defects in walls and make the wall surface smooth so that subsequent painting work can be carried out. In order to improve the strength after construction, traditional putty powder usually mixes a large amount of cement into it for setting. Since cement is expensive, its addition will lead to a higher price of the finished putty powder. Therefore, reducing the cost of putty powder while ensuring its quality is a problem that needs to be solved.

[0003] The main cementitious components are calcium oxide, silicon dioxide, and aluminum oxide, which can react with water. According to crystallization theory, after the cement clinker minerals hydrate, the resulting crystals interlock and aggregate together, thus causing the entire material to solidify and harden. According to colloid theory, after hydration, a large amount of colloidal substances are generated. These colloidal substances lose water due to external drying or due to the continued hydration of unhydrated particles inside, thus producing "internal absorption" and losing water, thereby causing the colloid to harden.

[0004] Industrial production activities also generate a large amount of solid waste, mainly including fly ash and desulfurized gypsum. These materials mainly contain substances such as silicon dioxide, calcium oxide, and sulfur oxide. The minerals in these solid wastes react with water to produce substances such as ettringite and CSH cementitious materials, which can achieve the cementitious effect of cement. In reality, the use of ultra-fine grinding technology can effectively stimulate their cementitious properties. Due to its reduced cost, it is generally used in road construction or large-volume concrete in existing technologies to partially or completely replace cement clinker as an inorganic cementitious material. This not only consumes industrial solid waste and protects the environment, but also reduces the cost of putty powder, thereby improving the efficiency of putty powder use.

[0005] When using powder produced from industrial solid waste to replace part or all of the cement in putty powder, the reaction rate of industrial solid waste such as fly ash with water is relatively slow, resulting in less binding of water in the putty powder in the early stage. This leads to faster surface water loss during use, which in turn causes uneven shrinkage stress on the surface of the putty powder during the setting process, resulting in surface cracks and powdering, and ultimately reducing the quality of the putty powder. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies, this invention proposes a solid waste-based crack-resistant putty. This invention primarily addresses the problem that putty powder containing industrial solid waste powder experiences excessive surface water loss, leading to cracking.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a solid waste anti-crack putty, comprising 20-30 parts latex, 60-70 parts talc powder, 10-20 parts quartz sand and 20-25 parts water by weight; the putty also comprises 10-15 parts cement, 10-15 parts solid waste active powder and 10-15 parts water-absorbing resin by weight;

[0008] The ratio of the solid waste activated powder to cement is 1:0.8-1:1.2; the solid waste activated powder is obtained by ultra-fine crushing of industrial solid waste.

[0009] The putty is made by uniformly mixing the above-mentioned materials.

[0010] During application, solid waste active powder (mainly including industrial solid wastes such as fly ash, steel slag, and desulfurization gypsum, which can be effectively activated by ultra-fine grinding to partially or completely replace cement clinker as inorganic binder) is added to the putty paste. This not only disposes of large quantities of industrial solid waste, protects the ecological environment, achieves comprehensive utilization of solid waste resources, and reduces usage costs, but also improves cement performance to some extent. Subsequently, water-absorbing resin is added to the putty paste. This resin has a certain water absorption capacity and can release moisture. Therefore, by adding water-absorbing resin internally, the moisture content of the putty paste can be increased to a certain extent without making the putty paste too slippery, which would hinder application. The excessive fluidity of the putty can cause collapse. Simultaneously, because the water in the hygroscopic resin can release some moisture upon heating, after application, when the surface of the putty loses moisture, heating the wall surface promotes the release of some moisture from the hygroscopic resin, thus maintaining the surface moisture content and ensuring uniform hydration. This prevents the concentration of shrinkage stress during hardening, effectively avoiding surface cracks. Furthermore, because the hygroscopic resin has a certain degree of compressibility, when shrinkage stress occurs on the surface, the deformation of the hygroscopic resin absorbs some of the stress, further preventing stress concentration and crack formation, thereby improving the quality of the putty.

[0011] Preferably, the absorbent resin is a magnetic resin.

[0012] During application, by making the absorbent resin magnetic, a magnetic field is created on one side of the putty. This causes the absorbent resin to move, making the vertical direction of the putty more outward. This results in a structure with a higher proportion of absorbent resin on the outer side. Because the absorbent resin can absorb a lot of water, the moisture content on the outer side of the putty is relatively high after application. Even after some moisture loss, it can still maintain a suitable moisture content. Furthermore, the outward movement of the absorbent resin increases its content on the outer side. After application, heating can melt some of the outer absorbent resin, creating a denser sealing layer that slows down moisture loss and prevents cracking caused by external water loss. Additionally, the flexibility of the absorbent resin effectively prevents the concentration of shrinkage stress during the hardening process, further preventing cracks.

[0013] Preferably, the absorbent resin has a linear structure; the diameter of the absorbent resin is 0.5-2 mm; and the length of the absorbent resin is 10-20 mm.

[0014] During application, by configuring the absorbent resin into a linear structure, a larger surface area is achieved, allowing for more stable outward diffusion of moisture. This maintains an appropriate moisture level in the putty during the hardening process, improving the quality of the hardened putty and preventing powdering. Furthermore, the linear structure facilitates the formation of an interwoven network within the putty. Since cracks are typically linear, the linear network of absorbent resin can more easily absorb longer cracks through its flexibility. Combined with magnetic adsorption during application, the linear structure further facilitates the formation of this network. Additionally, post-application heating softens and diffuses the vertical surface, allowing the linear structure to partially soften and embed the absorbent resin deep within the putty, thus enhancing its overall structural strength and adhesion.

[0015] Preferably, the method for preparing the water-absorbing resin includes the following steps:

[0016] K1: Heat and melt the resin particles, then brush a layer of resin into a regular container, with the layer thickness controlled at 0.3-0.5mm;

[0017] K2: Spread a uniform layer of magnetic powder on the resin surface after completing the above steps. The amount of magnetic powder should not exceed 5 grams per square centimeter. Immediately afterwards, brush a layer of resin onto the surface of the magnetic powder. The thickness of the layer should be the same as in step K1.

[0018] K3: Then, put the container that has completed step K2 into the freezing equipment and freeze it for 5 minutes;

[0019] K4: Then repeat steps K1-K3 until the container is full; then remove the frozen absorbent resin; use a cutting device to cut the resin end face; the cutting feed should not exceed 2mm / cycle;

[0020] K5: The cut resin is put into a vibrating device to treat the resin by vibration, and then magnetic water-absorbing resin is obtained.

[0021] During operation, the heated vertical section possesses a certain degree of fluidity, facilitating resin coating within the container. Controlling the coating thickness allows for precise control of the vertical wire diameter during subsequent application, eliminating the need for complex additional processes and thus improving resin production efficiency. Furthermore, the placement of magnetic powder between the two resin layers imbues the produced resin with a degree of magnetism and facilitates separation between the layers. Subsequent cutting and vibration then allow for the formation of a linear structure within the resin, enhancing resin quality and ultimately increasing production efficiency. The quality of the putty is improved by freezing it to increase its hardness, which facilitates subsequent cutting. Then, vertical vibration after cutting separates the resin chips into clumps and separates the poorly bonded magnetic powder from the resin. This prevents the magnetic powder from being mixed into the putty and avoids excessive magnetic powder (because the magnetic powder particles are small, they move more easily to the surface of the putty during magnetic adsorption) accumulating on the surface of the putty during the application process, which would otherwise result in a rough surface.

[0022] Preferably, the putty further includes 10-15 parts by weight of alkaline steel slag, 5-8 parts by weight of red mud, and 2-3 parts by weight of sulfate solution.

[0023] During application, putty containing only cement, after hardening, primarily relies on the cement's cementitious action to form mostly relatively independent, slender fibers or snowflake-like clumps within its internal structure. The overall cohesion between these fibers is relatively poor, resulting in voids and gaps in the formed structure. This is because the fibrous or needle-like structures in the cementitious material are typical ettringite structures, while the snowflake-like substances are hydrated calcium silicate structures—both hydration products of cement. The strength increase of cement in putty is mainly achieved through the fiber-reinforcing effect between these fibers. However, when solid waste active substances are added to the putty, numerous short, thick, confined structures or coral reef-like structures are formed within the putty. These are products of the synergistic effect between the solid waste active substances and cement, achieving both filling and fiber reinforcement effects. This process results in a denser internal structure of the putty after gelation, thus improving its bonding strength. Furthermore, since the main gelling agent in the solid waste active powder is a silica-alumina compound, its concentration in alkali and sulfate solutions increases. This significantly enhances the control of phase boundary reactions during the hydration of the solid waste active powder, increasing its decomposition rate and extent. This, in turn, strengthens the depolymerization of gelling-promoting substances in the solid active powder, enhancing the synergistic effect between the solid waste active powder and cement in the gelation process. This further increases the effect of the solid waste active powder on improving the bonding strength of the putty, resulting in better adhesion and preventing problems such as peeling and powdering after use, thereby improving the overall quality of the putty.

[0024] This invention also provides a method for applying solid waste crack-resistant putty, comprising the following steps:

[0025] S1: Use cleaning tools to clean the wall surface to remove dust and loose particles, and then spray the wall surface with mist water;

[0026] S2: Then heat the wall surface to 35-45℃ for 10-15 minutes; detect the humidity of the wall surface using a humidity detection device;

[0027] S3: Once the wall surface reaches the appropriate humidity level, apply the putty evenly and smoothly onto the wall surface.

[0028] S4: Then, after applying the putty, hang the insulation film on the outer side in front of it. The distance between the insulation film and the outer side of the putty is 2-5cm. The upper and lower ends of the insulation film are sealed to form a channel between the insulation film and the wall.

[0029] S5: Then hot air is introduced from one side of the channel and gas is extracted from the other side of the channel for 10-20 minutes. The air velocity in the channel does not exceed 0.1m / s, and the humidity of the hot air is 1.1 times that of the wall surface before the putty is applied.

[0030] S6: Then test the humidity of the wall surface and the strength of the putty applied to the wall surface. When the putty strength reaches 50% of the design strength, remove the installed insulation film and allow it to harden naturally to the design strength, thus completing the application of the putty.

[0031] During the application process, cleaning the wall surface removes loose dust and particles. Spraying water and heating the wall promotes moisture absorption, allowing it to penetrate deeper into the wall. This prevents the wall from absorbing moisture from the putty before application, maintaining a suitable moisture level during hardening. This improves adhesion between the putty and the wall, enhancing its overall performance. Heating the wall softens the absorbent resin near the wall, increasing the bond strength. Finally, hanging an insulation film over the wall creates a channel between the wall and the insulation film. Hot air is then introduced through one side of this channel, further heating the putty surface and allowing the putty to harden. After the water-absorbing resin softens, it forms a sealing layer on the surface of the putty, thus slowing down moisture loss. Simultaneously, heating promotes the depolymerization of the gelling agents in the solid waste active powder of the putty, facilitating hardening and setting of the putty, thereby improving the efficiency and degree of setting, and ultimately increasing the strength of the set putty. Furthermore, the film-like structure prevents dust and impurities from adhering to the wall surface after construction, thus improving the aesthetics of the finished wall. The application of flowing air within the channels accelerates the hydration reaction of the putty, further enhancing its hardening efficiency and overall usability. Additionally, ventilation helps maintain a stable temperature during the hardening process, preventing freezing and cracking during winter construction, thus improving the putty's adaptability to various applications.

[0032] Preferably, the method for applying the putty paste includes the following steps:

[0033] M1: Pour the well-mixed putty paste into the heating equipment and heat it to 20-25℃. Then, use a spraying device to evenly spray the putty paste onto the wall surface.

[0034] M2: Then, smooth the putty paste treated in step M1 using a smoothing tool, wherein the pressure applied during the smoothing process does not exceed 2N;

[0035] M3: Then, magnetism is applied to the wall surface using a magnetic strip. During the application of magnetism, the distance between the magnetic strip and the putty is 2-5cm, and the magnetic strip rotates around the center.

[0036] During application, heating the putty prevents a rapid drop in wall temperature upon contact, allowing for better temperature control during application. This precise temperature control is beneficial for the putty's setting process and enhances the activity of the cementitious materials, thus improving its setting properties. Subsequently, the putty is smoothed with relatively light force, resulting in a relatively loose internal structure. This allows for easier movement of the resin when magnetic force is applied later, facilitating better adhesion. The surface layer of the putty has a relatively high resin content, which makes it easier to form a resin seal layer, thus better preventing surface moisture loss and avoiding surface cracks. Simultaneously, during the application of magnetic force, the rotation of the magnetic strip changes the magnitude and direction of the applied magnetic force (while maintaining the outward adsorption tendency). This allows the internal magnetic strips to move in different directions as they are adsorbed and moved outward, resulting in a complex and interwoven resin structure. This improves the lateral bonding strength of the putty, enhances its crack resistance, and ultimately improves its overall quality.

[0037] Preferably, the method for applying the putty further includes the following steps:

[0038] Q1: After the putty has been processed through the above-mentioned M3 step, the putty is vibrated using a vibrating plate, with a vibration frequency of 300-400 Hz and a vibration amplitude of 3-2 mm; the average vibration time per square centimeter is not less than 5 seconds.

[0039] Q2: Then, use a smoothing tool to smooth the putty again, with a smoothing pressure of 8-10N, to complete the application of the putty.

[0040] During application, high-frequency, low-amplitude vibration is applied to the putty before it sets. This allows the solid and waste active powders in the putty to be more evenly distributed throughout the putty. As the putty hardens and sets, this results in a more uniform columnar fiber structure and coral-like three-dimensional network structure, further increasing the putty's strength. Simultaneously, the high-frequency, low-amplitude vibration makes the putty surface smoother and denser, reducing moisture loss and the risk of cracking. Furthermore, before smoothing, the water-absorbing resin in the putty moves, creating voids that traditional pressing and smoothing methods struggle to eliminate. Vibration effectively eliminates these voids, increasing the putty's density and strength.

[0041] Preferably, the ratio of the solid waste active powder to cement is 1:1.

[0042] Preferably, the pH value of the solid active powder in the putty is between 8 and 9.

[0043] During operation, the gelling agents in the solid active powder work better under alkaline conditions, which enhances the adhesion of the produced putty and improves its quality. At the same time, the alkaline properties of the putty improve its resistance to rainwater corrosion (most rainwater is weakly acidic) when used in external environments, thus enhancing its protective effect.

[0044] The beneficial effects of this invention are as follows:

[0045] 1. In this invention, water-absorbing resin is added to the putty paste. Water-absorbing resin has a certain water-absorbing capacity and can release the water within it. Therefore, by adding water-absorbing resin internally, the water content in the putty paste can be increased to a certain extent without causing the putty paste to become too slippery, leading to excessive fluidity and collapse after application. Furthermore, since some of the water in the water-absorbing resin can be released outwards upon heating, after the putty paste loses moisture on its surface, heating the wall surface can further promote the release of water from the water-absorbing resin, thus maintaining the surface moisture content and ensuring a uniform hydration reaction. This prevents the concentration of shrinkage stress during the hardening process, effectively avoiding surface cracks. Additionally, because water-absorbing resin has a certain degree of compressibility, when shrinkage stress occurs on the surface, the deformation of the water-absorbing resin can absorb some of the stress, further preventing stress concentration and crack formation, thereby improving the quality of the putty paste.

[0046] 2. In this invention, by making the water-absorbing resin magnetic, a magnetic field can be set on one side of the putty during the application process. This allows the water-absorbing resin in the putty to move, making the vertical direction of the putty more outward. This results in a structure with a higher proportion of water-absorbing resin on the outer side. Because the water-absorbing resin can absorb more water, the moisture content on the outer side of the putty is relatively high after application. Even after some moisture loss, it can still maintain a suitable moisture content. Furthermore, the outward movement of the water-absorbing resin increases its content on the outer side. After application, heating can melt some of the outer water-absorbing resin, allowing it to form a denser water-sealing layer on the outer side. This slows down moisture loss and prevents cracking caused by external water loss after use. Additionally, the flexibility of the water-absorbing resin effectively prevents the concentration of shrinkage stress during the hardening process, further preventing cracks.

[0047] 3. In this invention, by setting the water-absorbing resin into a linear structure, the water-absorbing resin has a larger surface area, which allows it to diffuse moisture more stably outward, maintaining an appropriate level of moisture in the putty during the hardening process. This improves the quality of the hardened putty and prevents powdering of the putty surface. Simultaneously, because the linear structure makes it easier to form an intersecting network within the putty, and since cracks are typically linear, the water-absorbing resin in the linear network structure can more easily absorb longer cracks through its flexibility. Combined with magnetic adsorption during construction, the linear structure facilitates the formation of a network structure. Furthermore, after construction, heating softens and diffuses the vertical surface, allowing the linear structure to partially soften the water-absorbing resin and embed it deep within the putty, thereby improving the overall structural strength of the putty and enhancing its adhesion.

[0048] 4. In this invention, by placing magnetic powder between two layers of resin, the produced resin can possess a certain degree of magnetism while facilitating the separation of the two resin layers. This allows for the formation of a linear structure in the resin after subsequent cutting and vibration, thereby improving the quality of the resin and the resulting putty. Freezing increases the hardness of the putty, facilitating subsequent cutting. Furthermore, vertical vibration after cutting separates the resin chips into clumps, and also separates the loosely bonded magnetic powder from the resin. This prevents the magnetic powder from being mixed into the putty, thus avoiding excessive magnetic powder accumulation on the surface during application and preventing excessive surface roughness.

[0049] 5. In this invention, heating the putty paste prevents a rapid drop in wall temperature upon contact with the wall surface, allowing for better control of the putty paste's application temperature. This more precise temperature control during construction benefits the putty paste's gelation process and enhances the activity of the gelling materials, thus improving its gelling properties. Subsequently, the putty paste is smoothed with relatively low force, resulting in a relatively loose internal structure. This allows for easier movement of the resin within the putty when magnetic force is applied later. This process facilitates the formation of a resin-rich structural layer on the surface of the putty, making it easier to create a resin seal and better prevent surface moisture loss, thus avoiding surface cracks. Simultaneously, the rotation of the magnetic strip during magnetic force application changes the magnitude and direction of the applied magnetic force. This allows the internal magnetic strips to move in different directions as they are attracted and moved outwards, creating a complex, interwoven resin structure. This enhances the lateral bonding strength of the putty, improves its crack resistance, and ultimately improves its overall quality. Attached Figure Description

[0050] The invention will now be further described with reference to the accompanying drawings.

[0051] Figure 1 This is a schematic diagram of the putty paste being stirred evenly in this invention;

[0052] Figure 2 This is a schematic diagram of the structure of the putty paste after magnetic treatment following application in this invention;

[0053] Figure 3 This is a schematic diagram of the structure of the putty paste after it has been applied and then subjected to vibration treatment in this invention;

[0054] Figure 4 This is a flowchart of the application process of the putty paste in this invention.

[0055] Along the way: 1. Putty paste body, 2. Water-absorbing resin, 3. Gap. Detailed Implementation

[0056] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0057] Example 1:

[0058] A solid waste crack-resistant putty, comprising 20-30 parts latex, 60-70 parts talc powder, 10-20 parts quartz sand and 20-25 parts water by weight; the putty also comprises 10-15 parts cement, 10-15 parts solid waste active powder and 10-15 parts water-absorbing resin by weight.

[0059] The ratio of the solid waste activated powder to cement is 1:1; the solid waste activated powder is obtained by ultra-fine crushing of industrial solid waste.

[0060] The putty is made by uniformly mixing the above-mentioned materials.

[0061] During application, solid waste active powder (mainly including industrial solid wastes such as fly ash, steel slag, and desulfurization gypsum, which can be effectively activated by ultra-fine grinding to partially or completely replace cement clinker as inorganic binder) is added to the putty paste. This not only disposes of large quantities of industrial solid waste, protects the ecological environment, achieves comprehensive utilization of solid waste resources, and reduces usage costs, but also improves cement performance to some extent. Subsequently, water-absorbing resin is added to the putty paste. This resin has a certain water absorption capacity and can release moisture. Therefore, adding water-absorbing resin increases the moisture content of the putty paste to a certain extent without causing it to become too slippery or causing problems with application. The excessive fluidity of the putty can cause collapse. Simultaneously, because the water in the hygroscopic resin can release some moisture upon heating, after application, when the surface of the putty loses moisture, heating the wall surface promotes the release of some moisture from the hygroscopic resin, thus maintaining the surface moisture content and ensuring uniform hydration. This prevents the concentration of shrinkage stress during hardening, effectively avoiding surface cracks. Furthermore, because the hygroscopic resin has a certain degree of compressibility, when shrinkage stress occurs on the surface, the deformation of the hygroscopic resin absorbs some of the stress, further preventing stress concentration and crack formation, thereby improving the quality of the putty.

[0062] The absorbent resin is a magnetic resin.

[0063] During application, by making the absorbent resin magnetic, a magnetic field is created on one side of the putty. This causes the absorbent resin to move, making the vertical direction of the putty more outward. This results in a structure with a higher proportion of absorbent resin on the outer side. Because the absorbent resin can absorb a lot of water, the moisture content on the outer side of the putty is relatively high after application. Even after some moisture loss, it can still maintain a suitable moisture content. Furthermore, the outward movement of the absorbent resin increases its content on the outer side. After application, heating can melt some of the outer absorbent resin, creating a denser sealing layer that slows down moisture loss and prevents cracking caused by external water loss. Additionally, the flexibility of the absorbent resin effectively prevents the concentration of shrinkage stress during the hardening process, further preventing cracks.

[0064] The absorbent resin has a linear structure; the diameter of the absorbent resin is 0.5-2 mm; and the length of the absorbent resin is 10-20 mm.

[0065] During application, by configuring the absorbent resin into a linear structure, a larger surface area is achieved, allowing for more stable outward diffusion of moisture. This maintains an appropriate moisture level in the putty during the hardening process, improving the quality of the hardened putty and preventing powdering. Furthermore, the linear structure facilitates the formation of an interwoven network within the putty. Since cracks are typically linear, the linear network of absorbent resin can more easily absorb longer cracks through its flexibility. Combined with magnetic adsorption during application, the linear structure further facilitates the formation of this network. Additionally, post-application heating softens and diffuses the vertical surface, allowing the linear structure to partially soften and embed the absorbent resin deep within the putty, thus enhancing its overall structural strength and adhesion.

[0066] The putty also includes 10-15 parts by weight of alkaline steel slag, 5-8 parts by weight of red mud, and 2-3 parts by weight of sulfate solution.

[0067] During application, putty containing only cement, after hardening, primarily relies on the cement's cementitious action to form mostly relatively independent, slender fibers or snowflake-like clumps within its internal structure. The overall cohesion between these fibers is relatively poor, resulting in voids and gaps in the formed structure. This is because the fibrous or needle-like structures in the cementitious material are typical ettringite structures, while the snowflake-like substances are hydrated calcium silicate structures—both hydration products of cement. The strength increase of cement in putty is mainly achieved through the fiber-reinforcing effect between these fibers. However, when solid waste active substances are added to the putty, numerous short, thick, confined structures or coral reef-like structures are formed within the putty. These are products of the synergistic effect between the solid waste active substances and cement, achieving both filling and fiber reinforcement effects. This process results in a denser internal structure of the putty after gelation, thus improving its bonding strength. Furthermore, since the main gelling agent in the solid waste active powder is a silica-alumina compound, its concentration in alkali and sulfate solutions increases. This significantly enhances the control of phase boundary reactions during the hydration of the solid waste active powder, increasing its decomposition rate and extent. This, in turn, strengthens the depolymerization of gelling-promoting substances in the solid active powder, enhancing the synergistic effect between the solid waste active powder and cement in the gelation process. This further increases the effect of the solid waste active powder on improving the bonding strength of the putty, resulting in better adhesion and preventing problems such as peeling and powdering after use, thereby improving the overall quality of the putty.

[0068] The pH value of the solid active powder in the putty is between 8 and 9.

[0069] During operation, the gelling agents in the solid active powder work better under alkaline conditions, which enhances the adhesion of the produced putty and improves its quality. At the same time, the alkaline properties of the putty improve its resistance to rainwater corrosion (most rainwater is weakly acidic) when used in external environments, thus enhancing its protective effect.

[0070] The method for preparing the water-absorbing resin includes the following steps:

[0071] K1: Heat and melt the resin particles, then brush a layer of resin into a regular container, with the layer thickness controlled at 0.3-0.5mm;

[0072] K2: Spread a uniform layer of magnetic powder on the resin surface after completing the above steps. The amount of magnetic powder should not exceed 5 grams per square centimeter. Immediately afterwards, brush a layer of resin onto the surface of the magnetic powder. The thickness of the layer should be the same as in step K1.

[0073] K3: Then, put the container that has completed step K2 into the freezing equipment and freeze it for 5 minutes;

[0074] K4: Then repeat steps K1-K3 until the container is full; then remove the frozen absorbent resin; use a cutting device to cut the resin end face; the cutting feed should not exceed 2mm / cycle;

[0075] K5: The cut resin is put into a vibrating device to treat the resin by vibration, and then magnetic water-absorbing resin is obtained.

[0076] During operation, the heated vertical section possesses a certain degree of fluidity, facilitating resin coating within the container. Controlling the coating thickness allows for precise control of the vertical wire diameter during subsequent application, eliminating the need for complex additional processes and thus improving resin production efficiency. Furthermore, the placement of magnetic powder between the two resin layers imbues the produced resin with a degree of magnetism and facilitates separation between the layers. Subsequent cutting and vibration then allow for the formation of a linear structure within the resin, enhancing resin quality and ultimately increasing production efficiency. The quality of the putty is improved by freezing it to increase its hardness, which facilitates subsequent cutting. Then, vertical vibration after cutting separates the resin chips into clumps and separates the poorly bonded magnetic powder from the resin. This prevents the magnetic powder from being mixed into the putty and avoids excessive magnetic powder (because the magnetic powder particles are small, they move more easily to the surface of the putty during magnetic adsorption) accumulating on the surface of the putty during the application process, which would otherwise result in a rough surface.

[0077] Example 2:

[0078] The difference in Example 2 compared to Example 1 is that the ratio of solid waste active powder to cement is 2:1.

[0079] Example 3:

[0080] The only difference between Example 1 and Example 3 is that the amount of water-absorbing resin is 40 parts.

[0081] Comparative Example 1:

[0082] Compared to Example 1, the only difference in Comparative Example 1 is that no water-absorbing resin was added to the putty.

[0083] Comparative Example 2:

[0084] Compared to Example 1, the only difference in Comparative Example 2 is that the added absorbent resin is not magnetic.

[0085] Crack resistance test of putty:

[0086] The raw materials for the putty paste were weighed according to the proportions of the above embodiments and comparative examples. Then, the putty paste was mixed according to the proportions of the embodiments and comparative examples to generate several groups of putty paste. Then, each group of putty paste was made into several specimens with a length, width and thickness of 50*50*10mm. Then, the specimens were placed on the same concrete wall panel and allowed to dry and solidify under natural conditions. After the specimens were completely solidified, the timer was started and the specimens were left to stand for 72 hours. Then, they were placed on a vibrating plate and vibrated for 5 seconds at a vibration frequency of 80 Hz and an amplitude of 5mm (vibration treatment can accelerate the generation and development of cracks, which facilitates the statistics and observation of cracks and makes the experimental results more reliable).

[0087] The number of cracks on the specimens was then counted, and the statistics are recorded in Table 1 below:

[0088] Small cracks Large crack total Example 1 2 0 2 Example 2 4 0 4 Example 3 5 1 6 Comparative Example 1 9 2 11 Comparative Example 2 6 2 8

[0089] In Table 1, small cracks refer to cracks with a length of less than 2 mm, and large cracks refer to cracks with a length of 2 mm or more.

[0090] The above experimental results show that adding magnetic water-absorbing resin to putty powder can significantly reduce the cracking of putty. Furthermore, when the content of dehydrated resin is the same as the specific gravity of cement, the crack resistance of the putty is better, which can effectively improve the situation where putty using solid waste active powder is prone to cracking.

[0091] Construction Method 1:

[0092] like Figures 1 to 4 As shown, this invention also discloses a method for applying a solid waste crack-resistant putty, comprising the following steps:

[0093] S1: Use cleaning tools to clean the wall surface to remove dust and loose particles, and then spray the wall surface with mist water;

[0094] S2: Then heat the wall surface to 35-45℃ for 10-15 minutes; detect the humidity of the wall surface using a humidity detection device;

[0095] S3: Once the wall surface reaches the appropriate humidity level, apply the putty evenly and smoothly onto the wall surface.

[0096] S4: Then, after applying the putty, hang the insulation film on the outer side in front of it. The distance between the insulation film and the outer side of the putty is 2-5cm. The upper and lower ends of the insulation film are sealed to form a channel between the insulation film and the wall.

[0097] S5: Then hot air is introduced from one side of the channel and gas is extracted from the other side of the channel for 10-20 minutes. The air velocity in the channel does not exceed 0.1m / s, and the humidity of the hot air is 1.1 times that of the wall surface before the putty is applied.

[0098] S6: Then test the humidity of the wall surface and the strength of the putty applied to the wall surface. When the putty strength reaches 50% of the design strength, remove the installed insulation film and allow it to harden naturally to the design strength, thus completing the application of the putty.

[0099] During the application process, cleaning the wall surface removes loose dust and particles. Spraying water and heating the wall promotes moisture absorption, allowing it to penetrate deeper into the wall. This prevents the wall from absorbing moisture from the putty before application, maintaining a suitable moisture level during hardening. This improves adhesion between the putty and the wall, enhancing its overall performance. Heating the wall softens the absorbent resin near the wall, increasing the bond strength. Finally, hanging an insulation film over the wall creates a channel between the wall and the insulation film. Hot air is then introduced through one side of this channel, further heating the putty surface and allowing the putty to harden. After the water-absorbing resin softens, it forms a sealing layer on the surface of the putty, thus slowing down moisture loss. Simultaneously, heating promotes the depolymerization of the gelling agents in the solid waste active powder of the putty, facilitating hardening and setting of the putty, thereby improving the efficiency and degree of setting, and ultimately increasing the strength of the set putty. Furthermore, the film-like structure prevents dust and impurities from adhering to the wall surface after construction, thus improving the aesthetics of the finished wall. The application of flowing air within the channels accelerates the hydration reaction of the putty, further enhancing its hardening efficiency and overall usability. Additionally, ventilation helps maintain a stable temperature during the hardening process, preventing freezing and cracking during winter construction, thus improving the putty's adaptability to various applications.

[0100] The method for applying the putty includes the following steps:

[0101] M1: Pour the well-mixed putty paste into the heating equipment and heat it to 20-25℃. Then, use a spraying device to evenly spray the putty paste onto the wall surface.

[0102] M2: Then, smooth the putty paste treated in step M1 using a smoothing tool, wherein the pressure applied during the smoothing process does not exceed 2N;

[0103] M3: Then, magnetism is applied to the wall surface using a magnetic strip. During the application of magnetism, the distance between the magnetic strip and the putty is 2-5cm, and the magnetic strip rotates around the center.

[0104] During application, heating the putty prevents a rapid drop in wall temperature upon contact, allowing for better temperature control during application. This precise temperature control is beneficial for the putty's setting process and enhances the activity of the cementitious materials, thus improving its setting properties. Subsequently, the putty is smoothed with relatively light force, resulting in a relatively loose internal structure. This allows for easier movement of the resin when magnetic force is applied later, facilitating better adhesion. The surface layer of the putty has a relatively high resin content, which makes it easier to form a resin seal layer, thus better preventing surface moisture loss and avoiding surface cracks. Simultaneously, during the application of magnetic force, the rotation of the magnetic strip changes the magnitude and direction of the applied magnetic force (while maintaining the outward adsorption tendency). This allows the internal magnetic strips to move in different directions as they are adsorbed and moved outward, resulting in a complex and interwoven resin structure. This improves the lateral bonding strength of the putty, enhances its crack resistance, and ultimately improves its overall quality.

[0105] The method for applying the putty also includes the following steps:

[0106] Q1: After the putty has been processed through the above-mentioned M3 step, the putty is vibrated using a vibrating plate, with a vibration frequency of 300-400 Hz and a vibration amplitude of 3-2 mm; the average vibration time per square centimeter is not less than 5 seconds.

[0107] Q2: Then, use a smoothing tool to smooth the putty again, with a smoothing pressure of 8-10N, to complete the application of the putty.

[0108] During application, high-frequency, low-amplitude vibration is applied to the putty before it sets. This allows the solid and waste active powders in the putty to be more evenly distributed throughout the putty. As the putty hardens and sets, this results in a more uniform columnar fiber structure and coral-like three-dimensional network structure, further increasing the putty's strength. Simultaneously, the high-frequency, low-amplitude vibration makes the putty surface smoother and denser, reducing moisture loss and the risk of cracking. Furthermore, before smoothing, the water-absorbing resin in the putty moves, creating voids that traditional pressing and smoothing methods struggle to eliminate. Vibration effectively eliminates these voids, increasing the putty's density and strength.

[0109] Construction Method 2:

[0110] Compared to construction method 1, the only difference in construction method 2 is that the putty powder is not magnetically treated in the application method; it is simply smoothed using traditional methods.

[0111] Construction Method 3:

[0112] Compared to construction method 1, the only difference in construction method 3 is that the putty powder is not subjected to high-frequency vibration during the application process; instead, it is smoothed by pressing with pressure.

[0113] Experiment on the effect of construction method on the crack resistance of putty:

[0114] The putty was prepared according to the proportions in Example 1. Then, following the above construction method, the putty was evenly applied to three independent areas of equal size on a wall. Each area was 1*1m in size, with a minimum interval of 2 meters between areas. The putty was then cured according to the above method until it was completely hardened. The wall was then kept dry and continuously blown with dry air for 8 hours, followed by 72 hours of standing. The number of cracks on each group of test blocks was then observed and statistically analyzed, resulting in Table 2 as follows:

[0115]

[0116]

[0117] The above experiments show that applying magnetism and using vibration can improve the crack resistance and structural strength of putty powder after use, thereby improving the quality of the putty powder.

[0118] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A solid waste crack-resistant putty, comprising, by weight, 20-30 parts latex, 60-70 parts talc powder, 10-20 parts quartz sand, and 20-25 parts water; characterized in that: The putty paste also includes, by weight, 10-15 parts cement, 10-15 parts solid waste active powder and 10-15 parts water-absorbing resin; The ratio of the solid waste activated powder to cement is 1:0.8-1:1.2; the solid waste activated powder is obtained by ultra-fine crushing of industrial solid waste. The putty is made by uniformly mixing the above materials; The absorbent resin is a magnetic resin.

2. The solid waste anti-cracking putty according to claim 1, characterized in that: The absorbent resin has a linear structure; the diameter of the absorbent resin is 0.5-2 mm; and the length of the absorbent resin is 10-20 mm.

3. The solid waste crack-resistant putty according to claim 2, characterized in that: The method for preparing the water-absorbing resin includes the following steps: K1: Heat and melt the resin particles, then brush a layer of resin into a regular container, with the layer thickness controlled at 0.3-0.5mm; K2: Spread a uniform layer of magnetic powder on the resin surface after completing the above steps. The amount of magnetic powder should not exceed 5 grams per square centimeter. Immediately afterwards, brush a layer of resin onto the surface of the magnetic powder. The thickness of the layer should be the same as in step K1. K3: Then, put the container that has completed step K2 into the freezing equipment and freeze it for 5 minutes; K4: Then repeat steps K1-K3 until the container is full; then remove the frozen absorbent resin; use a cutting device to cut the resin end face; the cutting feed should not exceed 2mm / cycle; K5: The cut resin is put into a vibrating device to treat the resin by vibration, and then magnetic water-absorbing resin is obtained.

4. The solid waste anti-crack putty according to claim 3, characterized in that: The putty also includes 10-15 parts by weight of alkaline steel slag and 5-8 parts by weight of red mud.

5. The solid waste anti-cracking putty according to claim 4, characterized in that: The ratio of the solid waste active powder to cement is 1:

1.

6. The solid waste anti-cracking putty according to claim 4, characterized in that: The pH value of the solid active powder in the putty is between 8 and 9.

7. A method for applying a solid waste crack-resistant putty, applicable to the putty described in claim 6, characterized in that: Includes the following steps: S1: Use cleaning tools to clean the wall surface to remove dust and loose particles, and then spray the wall surface with mist water; S2: Then heat the wall surface to 35-45℃ for 10-15 minutes; detect the humidity of the wall surface using a humidity detection device; S3: Once the wall surface reaches the appropriate humidity level, apply the putty evenly and smoothly onto the wall surface. S4: Then, after applying the putty, hang the insulation film on the outer side in front of it. The distance between the insulation film and the outer side of the putty is 2-5cm. The upper and lower ends of the insulation film are sealed to form a channel between the insulation film and the wall. S5: Then hot air is introduced from one side of the channel and gas is extracted from the other side of the channel for 10-20 minutes. The air velocity in the channel does not exceed 0.1m / s, and the humidity of the hot air is 1.1 times that of the wall surface before the putty is applied. S6: Then test the humidity of the wall surface and the strength of the putty applied to the wall surface. When the putty strength reaches 50% of the design strength, remove the installed insulation film and allow it to harden naturally to the design strength, thus completing the application of the putty.

8. The construction method of a solid waste crack-resistant putty according to claim 7, characterized in that: The method for applying the putty includes the following steps: M1: Pour the well-mixed putty paste into the heating equipment and heat it to 20-25℃. Then, use a spraying device to evenly spray the putty paste onto the wall surface. M2: Then, smooth the putty paste treated in step M1 using a smoothing tool, wherein the pressure applied during the smoothing process does not exceed 2N; M3: Then, magnetism is applied to the wall surface using a magnetic strip. During the application of magnetism, the distance between the magnetic strip and the putty is 2-5cm, and the magnetic strip rotates around the center.

9. The construction method of a solid waste crack-resistant putty according to claim 8, characterized in that: The method for applying the putty also includes the following steps: Q1: After the putty has been processed through the above-mentioned M3 step, the putty is vibrated using a vibrating plate, with a vibration frequency of 300-400 Hz and a vibration amplitude of 3-2 mm; the average vibration time per square centimeter is not less than 5 seconds. Q2: Then, use a smoothing tool to smooth the putty again, with a smoothing pressure of 8-10N, to complete the application of the putty.

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