Joint mixture and construction method thereof

Abstract

The invention relates to a joint mixture in the field of building materials and a construction method thereof, and aims to improve the waterproof, anti-mildew and strength properties of the joint mixture, reduce the cost and improve the construction efficiency. The joint mixture is prepared by mixing a cement-based joint mixture, a water-based acrylic resin coating, a polyvinyl alcohol building adhesive, a polyurethane waterproof sealing material and water. The cement-based joint mixture comprises quartz sand, redispersible latex powder, hydroxypropyl methyl cellulose, wood fibers, organosilane powder and the like. The construction method comprises the steps of checking a construction surface and materials, mixing the materials in proportion, carrying out primary joint filling, repairing, carrying out secondary joint filling and removing redundant joint filling agents, and ensuring that the joint filling agents are uniform and are tightly combined with ceramic tiles. According to the joint mixture and the construction method, the high-performance requirement is met, and meanwhile the cost benefit and the construction convenience are taken into account.

Description

Technical Field

[0001] The invention relates to the field of building materials, in particular to a caulking agent. Background Art

[0002] In the process of continuous development in the construction field, the importance of indoor wall and floor tile caulking materials has become increasingly prominent. From the mortar caulking used in early buildings, which is a mixture of sand and cementing materials, although it is cheap, it has poor waterproofness and is prone to mold, which cannot meet the needs of modern buildings; to the widely used white cement caulking, although it is cheap and has good whiteness, it is not strong enough, is prone to mold, powdering and cracking, and has a short service life.

[0003] With the advancement of technology, cement-based improved caulks came into being. They add quartz powder and pigments to white cement, which improves the hardness and solves the problems of powdering and cracking. Among them, the two-component caulk has better performance, but its market acceptance was not high in the early days.

[0004] In recent years, new materials such as caulking agents have gradually emerged. Single-component acrylic resin caulking agents have a glossy feel and a shiny effect after adding sequins, but they are soft, shrink and collapse significantly, and volatilize more harmful substances. Two-component reactive epoxy resin caulking agents overcome some of the defects of single-component caulking agents, with good waterproof and mildew resistance and strong anti-aging ability, but there are problems such as the gloss not meeting the aesthetic tastes of some people, lack of industry regulatory standards, and environmental risks of the curing agent. Epoxy colored sand, as a caulking agent used for many years abroad, has extremely strong hardness, strong waterproof and impermeability, close bonding with the base layer, almost no aging, good comprehensive performance, many optional colors, fine particles, and soft gloss, but the price is relatively high.

[0005] In summary, the existing wall and floor tile caulking materials have many deficiencies in terms of performance, environmental protection, price, and construction convenience, and cannot fully meet the needs of the market. Therefore, how to develop a new type of caulking agent with better performance, reasonable cost, convenient construction and environmental protection has become a key technical problem that needs to be solved in the current construction industry. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a caulking agent to solve one or more problems in the prior art.

[0007] To achieve the above object, the technical solution of the present invention is as follows:

[0008] A sealant, which is composed of the following raw materials by mass:

[0009] 4-5 parts cement-based caulking agent,

[0010] 2-2.5 parts water-based acrylic resin paint,

[0011] 1 part polyvinyl alcohol construction adhesive,

[0012] 0.5-0.8 parts of polyurethane waterproof sealing material,

[0013] 0.45-0.7 parts water.

[0014] The above technical solution enables the caulking agent to have good adhesion and waterproof properties. At the same time, by adjusting the proportion of each component, it can adapt to different construction environments and needs, thereby improving the applicability and flexibility of the caulking agent.

[0015] Wherein, by mass, the cement-based sealant composition is:

[0016] 25%-40% cement,

[0017] 50%-70% mineral aggregates,

[0018] 1.5%-2% adhesive,

[0019] 0.1%-1.5% thickener,

[0020] 0.2%-0.6% enhancer,

[0021] 0.2%-2% water repellent.

[0022] The above technical solution ensures the strength and durability of the caulking agent. At the same time, the addition of mineral aggregates and water repellents improves the anti-seepage performance of the caulking agent, so that the caulking agent can maintain long-term performance in a humid environment.

[0023] Furthermore, the mineral aggregate is quartz sand. Using quartz sand as the mineral aggregate can improve the wear resistance and durability of the caulking agent and extend its service life due to its high hardness and wear resistance.

[0024] Furthermore, the adhesive is a redispersible latex powder. As an adhesive, the redispersible latex powder can provide good bonding performance, while enhancing the flexibility of the caulking agent and reducing cracks caused by temperature changes.

[0025] Furthermore, the thickener is hydroxypropyl methylcellulose. As a thickener, hydroxypropyl methylcellulose can improve the construction performance of the caulking agent, making it easy to apply and not easy to flow, thereby improving the construction efficiency and quality.

[0026] Furthermore, the reinforcing agent is wood fiber. As a reinforcing agent, wood fiber can improve the crack resistance and impact resistance of the caulking agent, so that the caulking agent is not easily damaged when subjected to external force impact.

[0027] Furthermore, the water repellent is organic silane powder. As a water repellent, organic silane powder can effectively reduce the water absorption of the caulking agent, improve its waterproof performance, and is suitable for humid or underwater environments.

[0028] The construction method comprises the following steps:

[0029] S1. Check the construction surface to ensure that the tile surface is dust-free and oil-free. Check the construction materials to ensure that they are not expired or damaged. This step ensures that the preparations before construction are sufficient.

[0030] S2. Weigh the raw materials in proportion and fine-tune the proportion of water according to the construction environment and specific needs. According to the preset mass proportion, add and mix cement-based caulking agent, water-based acrylic resin coating, polyvinyl alcohol construction adhesive and polyurethane waterproof sealing material in sequence, and stir until the mixture is uniform and free of particles. According to the temperature and viscosity requirements, gradually add clean water until the mixture reaches a viscosity suitable for construction to obtain the caulking agent.

[0031] This step ensures the uniformity and construction performance of the caulking agent through precise material ratio and mixing, and improves the bonding strength and waterproof effect of the caulking agent.

[0032] S3. For the first caulking, use the caulking tool to fill the caulking agent into the gaps between the tiles, and scrape off the excess caulking agent that overflows the gaps. Wait for the caulking agent to dry and solidify. This step ensures that the caulking agent and the tile are tightly combined by controlling the caulking depth and speed, and avoids the caulking agent being too deep to affect the appearance and structural stability of the tile.

[0033] S4. Check and repair any unfilled or sunken parts, use a caulking tool to perform secondary caulking, and repeat S3. This step ensures the uniformity and integrity of the caulking agent and improves the caulking quality through secondary caulking and repairing.

[0034] S5. After the secondary caulking agent reaches a certain strength, wipe the surface of the tile to remove the excess caulking agent outside the gap. This step keeps the tile surface clean and beautiful by removing excess caulking agent, while avoiding damage to the caulking agent during the curing process.

[0035] Furthermore, in S3, the caulking speed should be lower than 2 cm / s. In S4, the drying time of the caulking agent is 2-4 hours, which is shortened when the temperature is high and prolonged when the temperature is low.

[0036] Furthermore, the height of the first caulking is 80%-90% of the total depth, and the height of the second caulking is flush with the tile. These further operational details optimize the construction process of the caulking agent, ensure uniform filling of the caulking agent and proper drying time, and improve the construction efficiency and performance of the caulking agent.

[0037] Compared with the prior art, the beneficial technical effects of the present invention are as follows

[0038] (I) In view of the poor waterproofness and easy mold of traditional mortar grouting, organic silane powder water repellent and other ingredients are used to give it good waterproof performance, effectively prevent water from penetrating and avoid mold. At the same time, through the synergistic effect of multiple materials, the strength, toughness and crack resistance of the grouting agent are enhanced, solving the problems of insufficient strength, easy mold, powder loss and cracking of white cement grouting.

[0039] (2) Compared with cement-based improved caulking agent, the material composition not only contains the basic components of cement-based caulking agent, but also water-based acrylic resin paint can be toned to meet the needs of different decoration styles and improve the appearance quality; polyvinyl alcohol building adhesive and polyurethane waterproof sealing material enhance the adhesion and waterproof properties, making the caulking more firm.

[0040] (III) The ingredients in cement-based caulking agents are relatively environmentally friendly, and water-based acrylic resin paint is more environmentally friendly than traditional oil-based paint. At the same time, through scientific construction methods, excessive harmful substances are avoided during the construction process, reducing harm to the environment and human body.

[0041] (IV) The price of epoxy colored sand is relatively high, but this solution reduces the cost by reasonable material combination and ratio while ensuring performance. For example, the cement, quartz sand and other materials in cement-based caulking agent are relatively low, and the use of expensive materials is reduced by optimizing the formula.

[0042] (V) The inspection steps before construction ensure the smooth progress of construction. Accurate material weighing and fine-tuning of the water ratio according to the construction environment make the construction more flexible. The method of stirring until uniform and particle-free and gradually adding clean water to adjust the consistency makes the caulking agent easy to apply. The standardized operation of the first and second caulking ensures the construction quality and avoids a complicated construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic flow diagram of the construction method of the present invention. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, a caulking agent proposed by the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no technical substantive significance. Any structural modification, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0045] The construction method of the present invention comprises the following steps:

[0046] S1. Check the construction surface to ensure that the tile surface is dust-free and oil-free; check the construction materials to ensure that they are not expired or damaged; this step ensures that the preparations before construction are sufficient.

[0047] S2. Weigh the raw materials in proportion, and fine-tune the proportion of water according to the construction environment and specific needs; add and mix cement-based caulking agent, water-based acrylic resin coating, polyvinyl alcohol building adhesive and polyurethane waterproof sealing material in sequence according to the preset mass proportion, and stir until the mixture is uniform and free of particles; according to the temperature and viscosity requirements, gradually add clean water until the mixture reaches a viscosity suitable for construction to obtain the caulking agent.

[0048] Among them, there are 4-5 parts of cement-based caulking agent, 2-2.5 parts of water-based acrylic resin coating, 1 part of polyvinyl alcohol building adhesive, 0.5-0.8 parts of polyurethane waterproof sealing material, and 0.45-0.7 parts of water. When the humidity at the construction site is lower than 40%, the caulking agent dries faster, so the required viscosity is slightly higher, and the amount of water added is increased by 0.10-0.15 parts. When the humidity at the construction site is higher than 70%, the caulking agent dries slower, so the required viscosity is slightly lower, and the amount of water added is reduced by 0.1-0.15 parts.

[0049] The ingredients of cement-based caulking agent are 25%-40% cement, 50%-70% mineral aggregate, 1.5%-2% adhesive, 0.1%-1.5% thickener, 0.2%-0.6% reinforcing agent, and 0.2%-2% water repellent.

[0050] Among them, the mineral aggregate is quartz sand, the adhesive is redispersible latex powder, the thickener is hydroxypropyl methylcellulose, the reinforcing agent is wood fiber, and the water repellent is organic silane powder.

[0051] Using quartz sand as mineral aggregate can improve the wear resistance and durability of the caulking agent and extend its service life due to its high hardness and wear resistance. Redispersible latex powder as a binder can provide good bonding performance, while enhancing the flexibility of the caulking agent and reducing cracks caused by temperature changes. Hydroxypropyl methylcellulose as a thickener can improve the construction performance of the caulking agent, making it easy to apply and not easy to flow, thereby improving construction efficiency and quality. Wood fiber as a reinforcing agent can improve the crack resistance and impact resistance of the caulking agent, making the caulking agent less likely to be damaged when subjected to external impact. Organosilane powder as a hydrophobic agent can effectively reduce the water absorption of the caulking agent and improve its waterproof performance, making it suitable for humid or underwater environments.

[0052] This step ensures the uniformity and construction performance of the caulking agent through precise material ratio and mixing, and improves the bonding strength and waterproof effect of the caulking agent.

[0053] S3. For the first caulking, use the caulking tool to fill the caulking agent into the gaps between the tiles, and scrape off the excess caulking agent that overflows the gaps; wait for the caulking agent to dry and solidify; this step ensures the close combination of the caulking agent and the tile by controlling the caulking depth and speed, and avoids the caulking agent being too deep and affecting the appearance and structural stability of the tile.

[0054] S4. Check and repair any unfilled or sunken parts, use a caulking tool to perform secondary caulking, and repeat S3; this step ensures the uniformity and integrity of the caulking agent and improves the caulking quality through secondary caulking and repairing.

[0055] S5. After the secondary caulking agent reaches a certain strength, wipe the surface of the tile to remove the excess caulking agent outside the gap. Compared with the single caulking, the secondary caulking has a lower shrinkage rate, which can further prevent the caulking agent from shrinking too quickly after drying and causing itself to tear.

[0056] Among them, in S3, the caulking speed should be less than 2cm / s; in S4, the drying time of the caulking agent is 2-4h, which is shortened by 1h when the temperature is higher than 35℃, and extended by 1h when the temperature is lower than 10℃. The height of the first caulking is 80%-90% of the total depth, and the height of the second caulking is flush with the tile. These further operating details optimize the construction process of the caulking agent, ensure the uniform filling and appropriate drying time of the caulking agent, and improve the construction efficiency and the performance of the caulking agent.

[0057] In the above scheme, cement-based caulking agent is improved on the basis of ordinary cement, which improves the insufficient waterproof performance and other physical properties of ordinary cement. However, when the proportion of each material is too high or too low, it will affect the overall physical properties of the cement-based caulking agent. Therefore, it is very important to test whether the proportion of each material is reasonable. The following is the verification content.

[0058] Six groups of cement-based caulking agent samples were prepared, with a certain number of samples in each group. Only the mass of one component in the same group of samples was different as a variable. An orthogonal test was carried out to obtain the optimal specific gravity or optimal specific gravity range of the six components and then normalized them.

[0059] (1) Cement group, toughness test: different samples were evenly applied to the base surface to form a 5 mm thick sample layer, which was peeled off after solidification. A bending force was applied to the sample until it broke, and the maximum bending angle of the sample was measured. By comparing the size of the angle, the toughness of the sample can be determined.

[0060] (2) Mineral aggregate group, test adhesion: clean the surface of the tile to ensure that it is dust-free and oil-free, adhere the sample to the base surface, apply it evenly and in the same size and shape. After the sample solidifies, apply a force perpendicular to the base surface to the sample, and measure the vertical force required to peel the sample off the base surface. By comparing the size of the vertical force, the degree of adhesion can be determined.

[0061] (3) Adhesive group, test adhesion: clean the surface of the tile to ensure that it is dust-free and oil-free, take samples and apply them to the same position on the surface of the tile, apply them evenly and in the same size and shape, and adhere the tile to the base surface with normal construction pressure. After the sample solidifies, apply a torsional force parallel to the base surface to the sample, peel the tile off the sample, and measure the torsional force required to separate the two. By comparing the magnitude of the torsional force, the degree of adhesion can be determined.

[0062] (4) Thickener group, test fluidity: take a sample in a flowing state and put it into a measuring cup. Tilt the measuring cup at 45° and measure the time it takes for different samples to reach the mouth of the measuring cup. By comparing the flow time, the fluidity of different samples can be determined.

[0063] (5) Strengthening agent group, test strength: clean the base surface to ensure that it is dust-free and oil-free, bond the sample to the base surface, apply it evenly and in the same size and shape, wait for the sample to solidify, apply a force perpendicular to the base surface to the sample until the sample is crushed and broken, and measure the pressure required for the sample to be crushed. By comparing the size of this pressure, the strength of different samples can be known.

[0064] (6) Water repellent group, test water permeability: take different samples and apply them evenly to form a sample layer with a thickness of 5 mm. After the sample solidifies, peel off the sample layer, weigh it, and immerse the sample in water for 1 hour. Take out the sample, wipe the surface dry, weigh it, measure the mass after water absorption, calculate the net water seepage mass, and divide it by the sample mass to get the 1 hour water seepage rate.

[0065] Physical properties of different groups of cement-based sealants (Table 1)

[0066]

[0067]

[0068] Since an increase in the proportion of a single variable will lead to a decrease in the proportions of other ingredients, and the change in the comprehensive ratio leads to an increase in a single performance which is not always positively or negatively correlated with a single variable, a simple comprehensive scoring mechanism needs to be introduced to evaluate the optimal proportion range of the ingredients.

[0069] Score the following five experimental numbers according to the five variables, and score them in order: 5 points for the first one, 4 points for the second one, 3 points for the third one, 2 points for the fourth one, and 1 point for the fifth one. Calculate the scores of the five experimental numbers for different variables, and the sum of the scores of each experimental number is the final score.

[0070] In the table, the larger the maximum bendable angle (°), the better, the larger the vertical force (N), the better, the larger the torsional force (N), the better, the larger the flow time (s), the better, the larger the pressure (N), the better, and the smaller the water permeability (%), the better.

[0071] The final score of the experimental group with experimental number 3 was the highest score of 21, so when the component ratio of the cement-based filler is close to the third group of variable data, the physical properties of the cement-based filler reach the optimal range. After normalization, the optimal component ratio is 34.7% cement, 61.2% mineral aggregate, 1.8% binder, 0.9% thickener, 0.4% enhancer, and 1% water repellent. Therefore, all subsequent implementation contents use cement-based fillers with this component ratio.

[0072] Embodiment 1

[0073] The construction method of the caulking agent of the present invention has the following steps:

[0074] S1. Check the construction surface to ensure that the tile surface is dust-free and oil-free; check the construction materials to ensure that they are not expired or damaged; this step ensures that the preparations before construction are sufficient.

[0075] S2. Weigh the raw materials in proportion, and fine-tune the proportion of water according to the construction environment and specific needs; add and mix cement-based caulking agent, water-based acrylic resin coating, polyvinyl alcohol building adhesive and polyurethane waterproof sealing material in sequence according to the preset mass proportion, and stir until the mixture is uniform and free of particles; according to the temperature and viscosity requirements, gradually add clean water until the mixture reaches a viscosity suitable for construction to obtain the caulking agent.

[0076] Among them, there are 4 parts of cement-based caulking agent, 2 parts of water-based acrylic resin coating, 1 part of polyvinyl alcohol building adhesive, 0.5 parts of polyurethane waterproof sealing material, and 0.5 parts of water. When the humidity at the construction site is lower than 40%, the caulking agent dries faster, so the required viscosity is slightly higher, and the amount of water added is increased by 0.10-0.15 parts. When the humidity at the construction site is higher than 70%, the caulking agent dries slower, so the required viscosity is slightly lower, and the amount of water added is reduced by 0.1-0.15 parts.

[0077] The composition of cement-based caulking agent is 34.7% cement, 61.2% mineral aggregate, 1.8% adhesive, 0.9% thickener, 0.4% reinforcing agent, and 1% water repellent.

[0078] Among them, the mineral aggregate is quartz sand, the adhesive is redispersible latex powder, the thickener is hydroxypropyl methylcellulose, the reinforcing agent is wood fiber, and the water repellent is organic silane powder.

[0079] S3. For the first caulking, use a caulking tool to fill the caulking agent into the gaps between the tiles, and scrape off the excess caulking agent that overflows the gaps; wait for the caulking agent to dry and solidify.

[0080] S4. Check and repair any incomplete or sunken parts, use a caulking tool to caulk the joints a second time, and repeat S3.

[0081] S5. After the secondary caulking agent reaches a certain strength, wipe the surface of the tile to remove excess caulking agent outside the gap.

[0082] Among them, in S3, the caulking speed should be less than 2cm / s; in S4, the drying time of the caulking agent is 2-4h, which is shortened by 1h when the temperature is higher than 35℃, and extended by 1h when the temperature is lower than 10℃. The height of the first caulking is 80%-90% of the total depth, and the height of the second caulking is flush with the tile.

[0083] Embodiment 2

[0084] The construction method of the caulking agent of the present invention has the following steps:

[0085] S1. Check the construction surface to ensure that the tile surface is dust-free and oil-free; check the construction materials to ensure that they are not expired or damaged; this step ensures that the preparations before construction are sufficient.

[0086] S2. Weigh the raw materials in proportion, and fine-tune the proportion of water according to the construction environment and specific needs; add and mix cement-based caulking agent, water-based acrylic resin coating, polyvinyl alcohol building adhesive and polyurethane waterproof sealing material in sequence according to the preset mass proportion, and stir until the mixture is uniform and free of particles; according to the temperature and viscosity requirements, gradually add clean water until the mixture reaches a viscosity suitable for construction to obtain the caulking agent.

[0087] The composition includes 4.5 parts of cement-based caulking agent, 2.2 parts of water-based acrylic resin coating, 1 part of polyvinyl alcohol building adhesive, 0.6 parts of polyurethane waterproof sealing material, and 0.7 parts of water. When the humidity at the construction site is lower than 40%, the caulking agent dries faster, so the required viscosity is slightly higher, and the amount of water added is increased by 0.10-0.15 parts. When the humidity at the construction site is higher than 70%, the caulking agent dries slower, so the required viscosity is slightly lower, and the amount of water added is reduced by 0.1-0.15 parts.

[0088] The composition of cement-based caulking agent is 34.7% cement, 61.2% mineral aggregate, 1.8% adhesive, 0.9% thickener, 0.4% reinforcing agent, and 1% water repellent.

[0089] Among them, the mineral aggregate is quartz sand, the adhesive is redispersible latex powder, the thickener is hydroxypropyl methylcellulose, the reinforcing agent is wood fiber, and the water repellent is organic silane powder.

[0090] S3. For the first caulking, use a caulking tool to fill the caulking agent into the gaps between the tiles, and scrape off the excess caulking agent that overflows the gaps; wait for the caulking agent to dry and solidify.

[0091] S4. Check and repair any incomplete or sunken parts, use a caulking tool to caulk the joints a second time, and repeat S3.

[0092] S5. After the secondary caulking agent reaches a certain strength, wipe the surface of the tile to remove excess caulking agent outside the gap.

[0093] Among them, in S3, the caulking speed should be less than 2cm / s; in S4, the drying time of the caulking agent is 2-4h, which is shortened by 1h when the temperature is higher than 35℃, and extended by 1h when the temperature is lower than 10℃. The height of the first caulking is 80%-90% of the total depth, and the height of the second caulking is flush with the tile.

[0094] Embodiment 3

[0095] The construction method of the caulking agent of the present invention has the following steps:

[0096] S1. Check the construction surface to ensure that the tile surface is dust-free and oil-free; check the construction materials to ensure that they are not expired or damaged; this step ensures that the preparations before construction are sufficient.

[0097] S2. Weigh the raw materials in proportion, and fine-tune the proportion of water according to the construction environment and specific needs; add and mix cement-based caulking agent, water-based acrylic resin coating, polyvinyl alcohol building adhesive and polyurethane waterproof sealing material in sequence according to the preset mass proportion, and stir until the mixture is uniform and free of particles; according to the temperature and viscosity requirements, gradually add clean water until the mixture reaches a viscosity suitable for construction to obtain the caulking agent.

[0098] Among them, there are 5 parts of cement-based caulking agent, 2.3 parts of water-based acrylic resin coating, 1 part of polyvinyl alcohol building adhesive, 0.7 parts of polyurethane waterproof sealing material, and 0.6 parts of water. When the humidity at the construction site is lower than 40%, the caulking agent dries faster, so the required viscosity is slightly higher, and the amount of water added is increased by 0.10-0.15 parts. When the humidity at the construction site is higher than 70%, the caulking agent dries slower, so the required viscosity is slightly lower, and the amount of water added is reduced by 0.1-0.15 parts.

[0099] The composition of cement-based caulking agent is 34.7% cement, 61.2% mineral aggregate, 1.8% adhesive, 0.9% thickener, 0.4% reinforcing agent, and 1% water repellent.

[0100] Among them, the mineral aggregate is quartz sand, the adhesive is redispersible latex powder, the thickener is hydroxypropyl methylcellulose, the reinforcing agent is wood fiber, and the water repellent is organic silane powder.

[0101] S3. For the first caulking, use a caulking tool to fill the caulking agent into the gaps between the tiles, and scrape off the excess caulking agent that overflows the gaps; wait for the caulking agent to dry and solidify.

[0102] S4. Check and repair any incomplete or sunken parts, use a caulking tool to caulk the joints a second time, and repeat S3.

[0103] S5. After the secondary caulking agent reaches a certain strength, wipe the surface of the tile to remove excess caulking agent outside the gap.

[0104] Among them, in S3, the caulking speed should be less than 2cm / s; in S4, the drying time of the caulking agent is 2-4h, which is shortened by 1h when the temperature is higher than 35℃, and extended by 1h when the temperature is lower than 10℃. The height of the first caulking is 80%-90% of the total depth, and the height of the second caulking is flush with the tile.

[0105] Embodiment 4

[0106] The construction method of the caulking agent of the present invention has the following steps:

[0107] S1. Check the construction surface to ensure that the tile surface is dust-free and oil-free; check the construction materials to ensure that they are not expired or damaged; this step ensures that the preparations before construction are sufficient.

[0108] S2. Weigh the raw materials in proportion, and fine-tune the proportion of water according to the construction environment and specific needs; add and mix cement-based caulking agent, water-based acrylic resin coating, polyvinyl alcohol building adhesive and polyurethane waterproof sealing material in sequence according to the preset mass proportion, and stir until the mixture is uniform and free of particles; according to the temperature and viscosity requirements, gradually add clean water until the mixture reaches a viscosity suitable for construction to obtain the caulking agent.

[0109] The composition includes 4.8 parts of cement-based caulking agent, 2.4 parts of water-based acrylic resin coating, 1 part of polyvinyl alcohol building adhesive, 0.8 parts of polyurethane waterproof sealing material, and 0.5 parts of water. When the humidity at the construction site is lower than 40%, the caulking agent dries faster, so the required viscosity is slightly higher, and the amount of water added is increased by 0.10-0.15 parts. When the humidity at the construction site is higher than 70%, the caulking agent dries slower, so the required viscosity is slightly lower, and the amount of water added is reduced by 0.1-0.15 parts.

[0110] The composition of cement-based caulking agent is 34.7% cement, 61.2% mineral aggregate, 1.8% adhesive, 0.9% thickener, 0.4% reinforcing agent, and 1% water repellent.

[0111] Among them, the mineral aggregate is quartz sand, the adhesive is redispersible latex powder, the thickener is hydroxypropyl methylcellulose, the reinforcing agent is wood fiber, and the water repellent is organic silane powder.

[0112] S3. For the first caulking, use a caulking tool to fill the caulking agent into the gaps between the tiles, and scrape off the excess caulking agent that overflows the gaps; wait for the caulking agent to dry and solidify.

[0113] S4. Check and repair any incomplete or sunken parts, use a caulking tool to caulk the joints a second time, and repeat S3.

[0114] S5. After the secondary caulking agent reaches a certain strength, wipe the surface of the tile to remove excess caulking agent outside the gap.

[0115] Among them, in S3, the caulking speed should be less than 2cm / s; in S4, the drying time of the caulking agent is 2-4h, which is shortened by 1h when the temperature is higher than 35℃, and extended by 1h when the temperature is lower than 10℃. The height of the first caulking is 80%-90% of the total depth, and the height of the second caulking is flush with the tile.

[0116] Embodiment 5

[0117] The construction method of the caulking agent of the present invention has the following steps:

[0118] S1. Check the construction surface to ensure that the tile surface is dust-free and oil-free; check the construction materials to ensure that they are not expired or damaged; this step ensures that the preparations before construction are sufficient.

[0119] S2. Weigh the raw materials in proportion, and fine-tune the proportion of water according to the construction environment and specific needs; add and mix cement-based caulking agent, water-based acrylic resin coating, polyvinyl alcohol building adhesive and polyurethane waterproof sealing material in sequence according to the preset mass proportion, and stir until the mixture is uniform and free of particles; according to the temperature and viscosity requirements, gradually add clean water until the mixture reaches a viscosity suitable for construction to obtain the caulking agent.

[0120] The composition includes 4.2 parts of cement-based caulking agent, 2 parts of water-based acrylic resin coating, 1 part of polyvinyl alcohol building adhesive, 0.5 parts of polyurethane waterproof sealing material, and 0.7 parts of water. When the humidity at the construction site is lower than 40%, the caulking agent dries faster, so the required viscosity is slightly higher, and the amount of water added is increased by 0.10-0.15 parts. When the humidity at the construction site is higher than 70%, the caulking agent dries slower, so the required viscosity is slightly lower, and the amount of water added is reduced by 0.1-0.15 parts.

[0121] The composition of cement-based caulking agent is 34.7% cement, 61.2% mineral aggregate, 1.8% adhesive, 0.9% thickener, 0.4% reinforcing agent, and 1% water repellent.

[0122] Among them, the mineral aggregate is quartz sand, the adhesive is redispersible latex powder, the thickener is hydroxypropyl methylcellulose, the reinforcing agent is wood fiber, and the water repellent is organic silane powder.

[0123] S3. For the first caulking, use a caulking tool to fill the caulking agent into the gaps between the tiles, and scrape off the excess caulking agent that overflows the gaps; wait for the caulking agent to dry and solidify.

[0124] S4. Check and repair any incomplete or sunken parts, use a caulking tool to caulk the joints a second time, and repeat S3.

[0125] S5. After the secondary caulking agent reaches a certain strength, wipe the surface of the tile to remove excess caulking agent outside the gap.

[0126] Among them, in S3, the caulking speed should be less than 2cm / s; in S4, the drying time of the caulking agent is 2-4h, which is shortened by 1h when the temperature is higher than 35℃, and extended by 1h when the temperature is lower than 10℃. The height of the first caulking is 80%-90% of the total depth, and the height of the second caulking is flush with the tile.

[0127] Since the secondary caulking will have a significant impact on the shrinkage rate of the caulking agent, a new shrinkage rate is added compared to the physical property measurement items of cement-based caulking agents. The process of recording the shrinkage rate is: measure the distance from the top of the caulking agent to the upper surface of the tile before drying, and measure the distance from the top of the caulking agent to the upper surface of the tile after drying. The difference between the two divided by the total depth of the gap is the shrinkage rate.

[0128] Physical properties of the caulking agent samples in Examples 1 to 5 (Table 2)

[0129]

[0130]

[0131] A new item of shrinkage rate is added to the scoring mechanism, and the lower the shrinkage rate, the better. According to the comprehensive scoring mechanism, the scores of the experiments numbered to five are 16, 27, 35, 20, and 7, respectively. It is preliminarily determined that the score of the third group of samples is the highest, that is, the third embodiment is preliminarily determined to be the best embodiment.

[0132] Comparative Example 1

[0133] The construction method of the caulking agent of the present invention has the following steps:

[0134] S1. Check the construction surface to ensure that the tile surface is dust-free and oil-free; check the construction materials to ensure that they are not expired or damaged; this step ensures that the preparations before construction are sufficient.

[0135] S2. Weigh the raw materials in proportion, and fine-tune the proportion of water according to the construction environment and specific needs; add and mix cement-based caulking agent, water-based acrylic resin coating, polyvinyl alcohol building adhesive and polyurethane waterproof sealing material in sequence according to the preset mass proportion, and stir until the mixture is uniform and free of particles; according to the temperature and viscosity requirements, gradually add clean water until the mixture reaches a viscosity suitable for construction to obtain the caulking agent.

[0136] Among them, there are 5 parts of cement-based caulking agent, 2.8 parts of water-based acrylic resin coating, 1.2 parts of polyvinyl alcohol building adhesive, 0.7 parts of polyurethane waterproof sealing material, and 0.6 parts of water. When the humidity at the construction site is lower than 40%, the caulking agent dries faster, so the required viscosity is slightly higher, and the amount of water added is increased by 0.10-0.15 parts. When the humidity at the construction site is higher than 70%, the caulking agent dries slower, so the required viscosity is slightly lower, and the amount of water added is reduced by 0.1-0.15 parts.

[0137] The composition of cement-based caulking agent is 34.7% cement, 61.2% mineral aggregate, 1.8% adhesive, 0.9% thickener, 0.4% reinforcing agent, and 1% water repellent.

[0138] Among them, the mineral aggregate is quartz sand, the adhesive is redispersible latex powder, the thickener is hydroxypropyl methylcellulose, the reinforcing agent is wood fiber, and the water repellent is organic silane powder.

[0139] S3. For the first caulking, use a caulking tool to fill the caulking agent into the gaps between the tiles, and scrape off the excess caulking agent that overflows the gaps; wait for the caulking agent to dry and solidify.

[0140] S4. Check and repair any incomplete or sunken parts, use a caulking tool to caulk the joints a second time, and repeat S3.

[0141] S5. After the secondary caulking agent reaches a certain strength, wipe the surface of the tile to remove excess caulking agent outside the gap.

[0142] Among them, in S3, the caulking speed should be less than 2cm / s; in S4, the drying time of the caulking agent is 2-4h, which is shortened by 1h when the temperature is higher than 35℃, and extended by 1h when the temperature is lower than 10℃. The height of the first caulking is 80%-90% of the total depth, and the height of the second caulking is flush with the tile.

[0143] Comparative Example 2

[0144] The construction method of the caulking agent of the present invention has the following steps:

[0145] S1. Check the construction surface to ensure that the tile surface is dust-free and oil-free; check the construction materials to ensure that they are not expired or damaged; this step ensures that the preparations before construction are sufficient.

[0146] S2. Weigh the raw materials in proportion, and fine-tune the proportion of water according to the construction environment and specific needs; add and mix cement-based caulking agent, water-based acrylic resin coating, polyvinyl alcohol building adhesive and polyurethane waterproof sealing material in sequence according to the preset mass proportion, and stir until the mixture is uniform and free of particles; according to the temperature and viscosity requirements, gradually add clean water until the mixture reaches a viscosity suitable for construction to obtain the caulking agent.

[0147] Among them, there are 5 parts of cement-based caulking agent, 2.3 parts of water-based acrylic resin coating, 1 part of polyvinyl alcohol building adhesive, 0.7 parts of polyurethane waterproof sealing material, and 0.6 parts of water. When the humidity at the construction site is lower than 40%, the caulking agent dries faster, so the required viscosity is slightly higher, and the amount of water added is increased by 0.10-0.15 parts. When the humidity at the construction site is higher than 70%, the caulking agent dries slower, so the required viscosity is slightly lower, and the amount of water added is reduced by 0.1-0.15 parts.

[0148] The composition of cement-based caulking agent is 34.7% cement, 61.2% mineral aggregate, 1.8% adhesive, 0.9% thickener, 0.4% reinforcing agent, and 1% water repellent.

[0149] Among them, the mineral aggregate is quartz sand, the adhesive is redispersible latex powder, the thickener is hydroxypropyl methylcellulose, the reinforcing agent is wood fiber, and the water repellent is organic silane powder.

[0150] S3. For the first caulking, use a caulking tool to fill the caulking agent into the gaps between the tiles, and scrape off the excess caulking agent that overflows the gaps; wait for the caulking agent to dry and solidify.

[0151] S4. Check and repair any incomplete or sunken parts, use a caulking tool to caulk the joints a second time, and repeat S3.

[0152] S5. After the secondary caulking agent reaches a certain strength, wipe the surface of the tile to remove excess caulking agent outside the gap.

[0153] Among them, in S3, the caulking speed should be less than 2cm / s; in S4, the drying time of the caulking agent is 2-4h, which is shortened by 1h when the temperature is higher than 35℃, and extended by 1h when the temperature is lower than 10℃. The height of the first caulking is 80%-90% of the total depth, and the height of the second caulking is flush with the tile.

[0154] Comparative Example 3

[0155] The construction method of the caulking agent of the present invention has the following steps:

[0156] S1. Check the construction surface to ensure that the tile surface is dust-free and oil-free; check the construction materials to ensure that they are not expired or damaged; this step ensures that the preparations before construction are sufficient.

[0157] S2. Weigh the raw materials in proportion, and fine-tune the proportion of water according to the construction environment and specific needs; add and mix cement-based caulking agent, water-based acrylic resin coating, polyvinyl alcohol building adhesive and polyurethane waterproof sealing material in sequence according to the preset mass proportion, and stir until the mixture is uniform and free of particles; according to the temperature and viscosity requirements, gradually add clean water until the mixture reaches a viscosity suitable for construction to obtain the caulking agent.

[0158] The composition includes 4.5 parts of cement-based caulking agent, 2.3 parts of water-based acrylic resin coating, 1 part of polyvinyl alcohol building adhesive, 0.7 parts of polyurethane waterproof sealing material, and 0.6 parts of water. When the humidity at the construction site is lower than 40%, the caulking agent dries faster, so the required viscosity is slightly higher, and the amount of water added is increased by 0.10-0.15 parts. When the humidity at the construction site is higher than 70%, the caulking agent dries slower, so the required viscosity is slightly lower, and the amount of water added is reduced by 0.1-0.15 parts.

[0159] The composition of cement-based caulking agent is 34.7% cement, 61.2% mineral aggregate, 1.8% adhesive, 0.9% thickener, 0.4% reinforcing agent, and 1% water repellent.

[0160] Among them, the mineral aggregate is quartz sand, the adhesive is redispersible latex powder, the thickener is hydroxypropyl methylcellulose, the reinforcing agent is wood fiber, and the water repellent is organic silane powder.

[0161] S3. For the first caulking, use a caulking tool to fill the caulking agent into the gaps between the tiles, and scrape off the excess caulking agent that overflows the gaps; wait for the caulking agent to dry and solidify.

[0162] S4. Check and repair any incomplete or sunken parts, use a caulking tool to caulk the joints a second time, and repeat S3.

[0163] S5. After the secondary caulking agent reaches a certain strength, wipe the surface of the tile to remove excess caulking agent outside the gap.

[0164] Among them, in S3, the caulking speed should be less than 2cm / s; in S4, the drying time of the caulking agent is 2-4h, which is shortened by 1h when the temperature is higher than 35℃, and extended by 1h when the temperature is lower than 10℃. The height of the first caulking is 80%-90% of the total depth, and the height of the second caulking is flush with the tile.

[0165] Comparative Example 4

[0166] The construction method of the caulking agent of the present invention has the following steps:

[0167] S1. Check the construction surface to ensure that the tile surface is dust-free and oil-free; check the construction materials to ensure that they are not expired or damaged; this step ensures that the preparations before construction are sufficient.

[0168] S2. Weigh the raw materials in proportion, and fine-tune the proportion of water according to the construction environment and specific needs; add and mix cement-based caulking agent, water-based acrylic resin coating, polyvinyl alcohol building adhesive and polyurethane waterproof sealing material in sequence according to the preset mass proportion, and stir until the mixture is uniform and free of particles; according to the temperature and viscosity requirements, gradually add clean water until the mixture reaches a viscosity suitable for construction to obtain the caulking agent.

[0169] Among them, there are 5 parts of cement-based caulking agent, 2.3 parts of water-based acrylic resin coating, 0.8 parts of polyvinyl alcohol building adhesive, 0.7 parts of polyurethane waterproof sealing material, and 0.6 parts of water. When the humidity at the construction site is lower than 40%, the caulking agent dries faster, so the required viscosity is slightly higher, and the amount of water added is increased by 0.10-0.15 parts. When the humidity at the construction site is higher than 70%, the caulking agent dries slower, so the required viscosity is slightly lower, and the amount of water added is reduced by 0.1-0.15 parts.

[0170] The composition of cement-based caulking agent is 34.7% cement, 61.2% mineral aggregate, 1.8% adhesive, 0.9% thickener, 0.4% reinforcing agent, and 1% water repellent.

[0171] Among them, the mineral aggregate is quartz sand, the adhesive is redispersible latex powder, the thickener is hydroxypropyl methylcellulose, the reinforcing agent is wood fiber, and the water repellent is organic silane powder.

[0172] S3. For the first caulking, use a caulking tool to fill the caulking agent into the gaps between the tiles, and scrape off the excess caulking agent that overflows the gaps; wait for the caulking agent to dry and solidify.

[0173] S4. Check and repair any incomplete or sunken parts, use a caulking tool to caulk the joints a second time, and repeat S3.

[0174] S5. After the secondary caulking agent reaches a certain strength, wipe the surface of the tile to remove excess caulking agent outside the gap.

[0175] Among them, in S3, the caulking speed should be less than 2cm / s; in S4, the drying time of the caulking agent is 2-4h, which is shortened by 1h when the temperature is higher than 35℃, and extended by 1h when the temperature is lower than 10℃. The height of the first caulking is 80%-90% of the total depth, and the height of the second caulking is flush with the tile.

[0176] Comparative Example 5

[0177] The construction method of the caulking agent of the present invention has the following steps:

[0178] S1. Check the construction surface to ensure that the tile surface is dust-free and oil-free; check the construction materials to ensure that they are not expired or damaged; this step ensures that the preparations before construction are sufficient.

[0179] S2. Weigh the raw materials in proportion, and fine-tune the proportion of water according to the construction environment and specific needs; add and mix cement-based caulking agent, water-based acrylic resin coating, polyvinyl alcohol building adhesive and polyurethane waterproof sealing material in sequence according to the preset mass proportion, and stir until the mixture is uniform and free of particles; according to the temperature and viscosity requirements, gradually add clean water until the mixture reaches a viscosity suitable for construction to obtain the caulking agent.

[0180] The composition includes 5 parts cement-based caulking agent, 2.3 parts water-based acrylic resin coating, 1 part polyvinyl alcohol construction adhesive, 0.7 parts polyurethane waterproof sealing material, and 0.4 parts water. When the humidity at the construction site is lower than 40%, the caulking agent dries faster, so the required viscosity is slightly higher, and the amount of water added is increased by 0.10-0.15 parts. When the humidity at the construction site is higher than 70%, the caulking agent dries slower, so the required viscosity is slightly lower, and the amount of water added is reduced by 0.1-0.15 parts.

[0181] The composition of cement-based caulking agent is 34.7% cement, 61.2% mineral aggregate, 1.8% adhesive, 0.9% thickener, 0.4% reinforcing agent, and 1% water repellent.

[0182] Among them, the mineral aggregate is quartz sand, the adhesive is redispersible latex powder, the thickener is hydroxypropyl methylcellulose, the reinforcing agent is wood fiber, and the water repellent is organic silane powder.

[0183] S3. For the first caulking, use a caulking tool to fill the caulking agent into the gaps between the tiles, and scrape off the excess caulking agent that overflows the gaps; wait for the caulking agent to dry and solidify.

[0184] S4. Check and repair any incomplete or sunken parts, use a caulking tool to caulk the joints a second time, and repeat S3.

[0185] S5. After the secondary caulking agent reaches a certain strength, wipe the surface of the tile to remove excess caulking agent outside the gap.

[0186] Among them, in S3, the caulking speed should be less than 2cm / s; in S4, the drying time of the caulking agent is 2-4h, which is shortened by 1h when the temperature is higher than 35℃, and extended by 1h when the temperature is lower than 10℃. The height of the first caulking is 80%-90% of the total depth, and the height of the second caulking is flush with the tile.

[0187] Comparative Example 6

[0188] The construction method of the caulking agent of the present invention has the following steps:

[0189] S1. Check the construction surface to ensure that the tile surface is dust-free and oil-free; check the construction materials to ensure that they are not expired or damaged; this step ensures that the preparations before construction are sufficient.

[0190] S2. Weigh the raw materials in proportion, and fine-tune the proportion of water according to the construction environment and specific needs; add and mix cement-based caulking agent, water-based acrylic resin coating, polyvinyl alcohol building adhesive and polyurethane waterproof sealing material in sequence according to the preset mass proportion, and stir until the mixture is uniform and free of particles; according to the temperature and viscosity requirements, gradually add clean water until the mixture reaches a viscosity suitable for construction to obtain the caulking agent.

[0191] Among them, there are 5 parts of cement-based caulking agent, 2.8 parts of water-based acrylic resin coating, 1.2 parts of polyvinyl alcohol building adhesive, 0.7 parts of polyurethane waterproof sealing material, and 0.6 parts of water. When the humidity at the construction site is lower than 40%, the caulking agent dries faster, so the required viscosity is slightly higher, and the amount of water added is increased by 0.10-0.15 parts. When the humidity at the construction site is higher than 70%, the caulking agent dries slower, so the required viscosity is slightly lower, and the amount of water added is reduced by 0.1-0.15 parts.

[0192] The composition of cement-based caulking agent is 34.7% cement, 61.2% mineral aggregate, 1.8% adhesive, 0.9% thickener, 0.4% reinforcing agent, and 1% water repellent.

[0193] Among them, the mineral aggregate is quartz sand, the adhesive is redispersible latex powder, the thickener is hydroxypropyl methylcellulose, the reinforcing agent is wood fiber, and the water repellent is organic silane powder.

[0194] S3. Use a caulking tool to fill the caulking agent into the gaps between tiles, and scrape off the excess caulking agent that overflows the gaps; wait for the caulking agent to dry and solidify.

[0195] S4. After the grout reaches a certain strength, wipe the surface of the tile to remove excess grout outside the gap.

[0196] Among them, in S3, the caulking speed should be less than 2cm / s; in S4, the drying time of the caulking agent is 2-4h, which is shortened by 1h when the temperature is higher than 35℃, and extended by 1h when the temperature is lower than 10℃. The caulking height is 80%-90% of the total depth.

[0197] Comparative Example 7

[0198] The construction method of the caulking agent of the present invention has the following steps:

[0199] S1. Check the construction surface to ensure that the tile surface is dust-free and oil-free; check the construction materials to ensure that they are not expired or damaged; this step ensures that the preparations before construction are sufficient.

[0200] S2. Weigh the raw materials in proportion, and fine-tune the proportion of water according to the construction environment and specific needs; add and mix cement-based caulking agent, water-based acrylic resin coating, polyvinyl alcohol building adhesive and polyurethane waterproof sealing material in sequence according to the preset mass proportion, and stir until the mixture is uniform and free of particles; according to the temperature and viscosity requirements, gradually add clean water until the mixture reaches a viscosity suitable for construction to obtain the caulking agent.

[0201] Among them, there are 5 parts of cement-based caulking agent, 2.3 parts of water-based acrylic resin coating, 1 part of polyvinyl alcohol building adhesive, 0.7 parts of polyurethane waterproof sealing material, and 0.6 parts of water. When the humidity at the construction site is lower than 40%, the caulking agent dries faster, so the required viscosity is slightly higher, and the amount of water added is increased by 0.10-0.15 parts. When the humidity at the construction site is higher than 70%, the caulking agent dries slower, so the required viscosity is slightly lower, and the amount of water added is reduced by 0.1-0.15 parts.

[0202] The composition of cement-based caulking agent is 34.7% cement, 61.2% mineral aggregate, 1.8% adhesive, 0.9% thickener, 0.4% reinforcing agent, and 1% water repellent.

[0203] Among them, the mineral aggregate is quartz sand, the adhesive is redispersible latex powder, the thickener is hydroxypropyl methylcellulose, the reinforcing agent is wood fiber, and the water repellent is organic silane powder.

[0204] S3. Use a caulking tool to fill the caulking agent into the gaps between tiles, and scrape off the excess caulking agent that overflows the gaps; wait for the caulking agent to dry and solidify.

[0205] S4. After the grout reaches a certain strength, wipe the surface of the tile to remove excess grout outside the gap.

[0206] Among them, in S3, the caulking speed should be less than 2cm / s; in S4, the drying time of the caulking agent is 2-4h, which is shortened by 1h when the temperature is higher than 35℃, and extended by 1h when the temperature is lower than 10℃. The caulking height is 80%-90% of the total depth.

[0207] Comparative Example 8

[0208] The construction method of the caulking agent of the present invention has the following steps:

[0209] S1. Check the construction surface to ensure that the tile surface is dust-free and oil-free; check the construction materials to ensure that they are not expired or damaged; this step ensures that the preparations before construction are sufficient.

[0210] S2. Weigh the raw materials in proportion, and fine-tune the proportion of water according to the construction environment and specific needs; add and mix cement-based caulking agent, water-based acrylic resin coating, polyvinyl alcohol building adhesive and polyurethane waterproof sealing material in sequence according to the preset mass proportion, and stir until the mixture is uniform and free of particles; according to the temperature and viscosity requirements, gradually add clean water until the mixture reaches a viscosity suitable for construction to obtain the caulking agent.

[0211] The composition includes 4.5 parts of cement-based caulking agent, 2.3 parts of water-based acrylic resin coating, 1 part of polyvinyl alcohol building adhesive, 0.7 parts of polyurethane waterproof sealing material, and 0.6 parts of water. When the humidity at the construction site is lower than 40%, the caulking agent dries faster, so the required viscosity is slightly higher, and the amount of water added is increased by 0.10-0.15 parts. When the humidity at the construction site is higher than 70%, the caulking agent dries slower, so the required viscosity is slightly lower, and the amount of water added is reduced by 0.1-0.15 parts.

[0212] The composition of cement-based caulking agent is 34.7% cement, 61.2% mineral aggregate, 1.8% adhesive, 0.9% thickener, 0.4% reinforcing agent, and 1% water repellent.

[0213] Among them, the mineral aggregate is quartz sand, the adhesive is redispersible latex powder, the thickener is hydroxypropyl methylcellulose, the reinforcing agent is wood fiber, and the water repellent is organic silane powder.

[0214] S3. Use a caulking tool to fill the caulking agent into the gaps between tiles, and scrape off the excess caulking agent that overflows the gaps; wait for the caulking agent to dry and solidify.

[0215] S4. After the grout reaches a certain strength, wipe the surface of the tile to remove excess grout outside the gap.

[0216] Among them, in S3, the caulking speed should be less than 2cm / s; in S4, the drying time of the caulking agent is 2-4h, which is shortened by 1h when the temperature is higher than 35℃, and extended by 1h when the temperature is lower than 10℃. The caulking height is 80%-90% of the total depth.

[0217] Comparative Example 9

[0218] The construction method of the caulking agent of the present invention has the following steps:

[0219] S1. Check the construction surface to ensure that the tile surface is dust-free and oil-free; check the construction materials to ensure that they are not expired or damaged; this step ensures that the preparations before construction are sufficient.

[0220] S2. Weigh the raw materials in proportion, and fine-tune the proportion of water according to the construction environment and specific needs; add and mix cement-based caulking agent, water-based acrylic resin coating, polyvinyl alcohol building adhesive and polyurethane waterproof sealing material in sequence according to the preset mass proportion, and stir until the mixture is uniform and free of particles; according to the temperature and viscosity requirements, gradually add clean water until the mixture reaches a viscosity suitable for construction to obtain the caulking agent.

[0221] Among them, there are 5 parts of cement-based caulking agent, 2.3 parts of water-based acrylic resin coating, 0.8 parts of polyvinyl alcohol building adhesive, 0.7 parts of polyurethane waterproof sealing material, and 0.6 parts of water. When the humidity at the construction site is lower than 40%, the caulking agent dries faster, so the required viscosity is slightly higher, and the amount of water added is increased by 0.10-0.15 parts. When the humidity at the construction site is higher than 70%, the caulking agent dries slower, so the required viscosity is slightly lower, and the amount of water added is reduced by 0.1-0.15 parts.

[0222] The composition of cement-based caulking agent is 34.7% cement, 61.2% mineral aggregate, 1.8% adhesive, 0.9% thickener, 0.4% reinforcing agent, and 1% water repellent.

[0223] Among them, the mineral aggregate is quartz sand, the adhesive is redispersible latex powder, the thickener is hydroxypropyl methylcellulose, the reinforcing agent is wood fiber, and the water repellent is organic silane powder.

[0224] S3. Use a caulking tool to fill the caulking agent into the gaps between tiles, and scrape off the excess caulking agent that overflows the gaps; wait for the caulking agent to dry and solidify.

[0225] S4. After the grout reaches a certain strength, wipe the surface of the tile to remove excess grout outside the gap.

[0226] Among them, in S3, the caulking speed should be less than 2cm / s; in S4, the drying time of the caulking agent is 2-4h, which is shortened by 1h when the temperature is higher than 35℃, and extended by 1h when the temperature is lower than 10℃. The caulking height is 80%-90% of the total depth.

[0227] Comparative Example 10

[0228] The construction method of the caulking agent of the present invention has the following steps:

[0229] S1. Check the construction surface to ensure that the tile surface is dust-free and oil-free; check the construction materials to ensure that they are not expired or damaged; this step ensures that the preparations before construction are sufficient.

[0230] S2. Weigh the raw materials in proportion, and fine-tune the proportion of water according to the construction environment and specific needs; add and mix cement-based caulking agent, water-based acrylic resin coating, polyvinyl alcohol building adhesive and polyurethane waterproof sealing material in sequence according to the preset mass proportion, and stir until the mixture is uniform and free of particles; according to the temperature and viscosity requirements, gradually add clean water until the mixture reaches a viscosity suitable for construction to obtain the caulking agent.

[0231] The composition includes 5 parts cement-based caulking agent, 2.3 parts water-based acrylic resin coating, 1 part polyvinyl alcohol construction adhesive, 0.7 parts polyurethane waterproof sealing material, and 0.4 parts water. When the humidity at the construction site is lower than 40%, the caulking agent dries faster, so the required viscosity is slightly higher, and the amount of water added is increased by 0.10-0.15 parts. When the humidity at the construction site is higher than 70%, the caulking agent dries slower, so the required viscosity is slightly lower, and the amount of water added is reduced by 0.1-0.15 parts.

[0232] The composition of cement-based caulking agent is 34.7% cement, 61.2% mineral aggregate, 1.8% adhesive, 0.9% thickener, 0.4% reinforcing agent, and 1% water repellent.

[0233] Among them, the mineral aggregate is quartz sand, the adhesive is redispersible latex powder, the thickener is hydroxypropyl methylcellulose, the reinforcing agent is wood fiber, and the water repellent is organic silane powder.

[0234] S3. Use a caulking tool to fill the caulking agent into the gaps between tiles, and scrape off the excess caulking agent that overflows the gaps; wait for the caulking agent to dry and solidify.

[0235] S5. After the grout reaches a certain strength, wipe the surface of the tile to remove excess grout outside the gap.

[0236] Among them, in S3, the caulking speed should be less than 2cm / s; in S4, the drying time of the caulking agent is 2-4h, which is shortened by 1h when the temperature is higher than 35℃, and extended by 1h when the temperature is lower than 10℃. The initial caulking height is 80%-90% of the total depth.

[0237] Table 3 shows comparative examples 1 to 5. In embodiments 1 to 5, the amount of one raw material exceeds the preset range.

[0238] The contents of Table 4 are comparative examples 6 to 10. The only difference between comparative examples 1 to 5 and comparative examples 6 to 10 is that only a single caulking was performed during the construction process of embodiments 6 to 10.

[0239] Table of physical properties of the caulking agent samples in comparative examples 1 to 5 (Table 3)

[0240]

[0241]

[0242] Table of physical properties of the caulking agent samples in comparative examples 6 to 10 (Table 4)

[0243]

[0244]

[0245] From the analysis of Table 3, it can be seen that when the material specific gravity in the sealant changes, the physical property data in Comparative Examples 1 to 5 are all decreased to varying degrees compared with the data in Examples 1 to 5, that is, the overall physical properties of the sealant will also be affected.

[0246] For example, the amount of cement-based caulking agent mainly affects strength, vertical force, torsional force, maximum bending angle and shrinkage. Water-based acrylic resin coating mainly affects vertical force, torsional force and water permeability. Polyvinyl alcohol building adhesive mainly affects torsional force and vertical force. Polyurethane waterproof sealing material mainly affects water permeability. Water mainly affects flow time and strength.

[0247] From the analysis of Table 4, it can be seen that the shrinkage rates of comparative examples 1 to 5 are better than those of comparative examples 6 to 10, that is, when other conditions remain unchanged, the shrinkage rate of the finished sealant with secondary caulking is better than the shrinkage rate of single caulking, that is, secondary caulking plays a key role in the shrinkage rate of the finished sealant.

[0248] From the comparative proportion, we can know that the control of ingredients in the construction process is crucial, and it also verifies the reasonable range of raw material proportions.

[0249] Secondary caulking has an important influence on the shrinkage rate, that is, secondary caulking is indispensable; when the number of any component exceeds the preset range, the physical properties are affected, that is, the reasonable range is the preset range, and then embodiment three is the best embodiment.

[0250] Therefore, mixing the raw materials according to the preset composition range and constructing according to the construction method will have a relatively obvious positive effect on the physical properties of the finished caulking agent.

[0251] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A sealant, characterized in that: The caulking agent is composed of the following raw materials by mass: 4-5 parts cement-based caulking agent, 2-2.5 parts water-based acrylic resin paint, 1 part polyvinyl alcohol construction adhesive, 0.5-0.8 parts of polyurethane waterproof sealing material, 0.45-0.7 parts water.

2. A sealant as claimed in claim 1, characterized in that: By mass, the cement-based caulking agent comprises: 25%-40% cement, 50%-70% mineral aggregates, 1.5%-2% adhesive, 0.1%-1.5% thickener, 0.2%-0.6% enhancer, 0.2%-2% water repellent.

3. A sealant as claimed in claim 1, characterized in that: The mineral aggregate is quartz sand.

4. A sealant as claimed in claim 1, characterized in that: The adhesive is redispersible latex powder.

5. A sealant as claimed in claim 1, characterized in that: The thickener is hydroxypropyl methylcellulose.

6. A sealant as claimed in claim 1, characterized in that: The reinforcing agent is wood fiber.

7. A sealant as claimed in claim 1, characterized in that: The water repellent is organic silane powder.

8. A construction method, based on a caulking agent according to any one of claims 1 to 7, comprising the following steps: S1. Check the construction surface to ensure that the tile surface is dust-free and oil-free; check the construction materials to ensure that they are not expired or damaged; S2. Weigh the raw materials in proportion, and fine-tune the proportion of water according to the construction environment and specific needs; add and mix cement-based caulking agent, water-based acrylic resin coating, polyvinyl alcohol building adhesive and polyurethane waterproof sealing material in sequence according to the preset mass proportion, and stir until the mixture is uniform and free of particles; according to the temperature and viscosity requirements, gradually add clean water until the mixture reaches a viscosity suitable for construction to obtain a caulking agent; S3. For the first caulking, use the caulking tool to fill the caulking agent into the gaps between the tiles, and scrape off the excess caulking agent that overflows the gaps; wait for the caulking agent to dry and solidify; S4. Check and repair any incomplete or sunken parts, use a caulking tool to caulk the joints again, and repeat S3; S5. After the secondary caulking agent reaches a certain strength, wipe the surface of the tile to remove excess caulking agent outside the gap.

9. The construction method according to claim 8, characterized in that: In S3, the caulking speed should be lower than 2 cm / s; in S4, the drying time of the caulking agent is 2-4 hours, which is shortened when the temperature is high and prolonged when the temperature is low.

10. The construction method according to claim 9, characterized in that: The height of the first caulking is 80%-90% of the total depth, and the height of the second caulking is flush with the tile.

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