Polyurethane mortar colored sand self-leveling floor

Abstract

A polyurethane mortar colored sand self-leveling floor is provided, which comprises a base layer, above the base layer, from bottom to top, a polyurethane mortar scraping bottom layer, a polyurethane mortar troweling middle layer, a putty scraping layer and a polyurethane colored sand mortar self-leveling layer are sequentially arranged; an anchoring groove is arranged on the base layer, and the depth of the anchoring groove is twice the sum of the thicknesses of the polyurethane mortar scraping bottom layer, the polyurethane mortar troweling middle layer, the putty scraping layer and the polyurethane colored sand mortar self-leveling layer; by setting the polyurethane mortar scraping bottom layer and the polyurethane mortar troweling middle layer, the process of scraping first and then troweling, and reasonable thickness control, the surface of the floor can reach a high flatness; and by using the color paste and colored sand in the polyurethane mortar troweling self-leveling layer, a rich variety of colors and beautiful decorative effects can be achieved, and the requirements of different places on the decorative effect of the floor can be met.

Description

Technical Field

[0001] This utility model relates to the field of flooring, and in particular to a polyurethane mortar colored sand self-leveling floor. Background Technology

[0002] Flooring refers to the construction and treatment of the original ground using specific materials and processes to present a certain decorative and functional surface, such as epoxy self-leveling flooring, corundum wear-resistant flooring, epoxy terrazzo flooring, cement-based terrazzo, epoxy colored sand flooring, epoxy anti-static flooring, epoxy anti-slip flooring, polyurea anti-corrosion flooring, polyurethane flooring, silicone PU flooring, concrete sealing and curing agent flooring, etc.

[0003] Colored sand flooring materials are created by freely combining resin with colored sand of different colors, resulting in a vibrant and colorful appearance with high decorative value. However, while traditional epoxy resin stamped sand flooring offers excellent decorative effects and can withstand heavy loads, its construction process is complex, cumbersome, and inefficient. Furthermore, its performance is significantly affected in high-temperature, high-humidity, organic acid, and alkali-corrosion environments. Epoxy floating colored sand self-leveling materials, while incorporating brighter colored sand resin for superior decorative effects and one-time application, solving the problem of low construction efficiency in epoxy stamped sand flooring, still rely on epoxy resin as the base material, making long-term application in harsh environments difficult. Additionally, water-based polyurethane floating colored sand self-leveling mortar, while adding melamine resin floating colored sand for decoration and retaining some of the properties of polyurethane, suffers from significantly reduced heavy-duty compressive strength and stain resistance due to its composite structure of water-based polyurethane and cement mortar. Moreover, the low amount of floating colored sand added fails to achieve the texture of colored sand flooring, resulting in a sharp decline in its decorative performance.

[0004] To address the aforementioned issues, a polyurethane mortar colored sand self-leveling floor is proposed. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned problems.

[0006] The present invention adopts the following technical solution:

[0007] A polyurethane mortar self-leveling floor includes a base layer, and above the base layer, from bottom to top, a polyurethane mortar base coat, a polyurethane mortar intermediate coat, a putty coat, and a polyurethane colored sand mortar self-leveling layer; an anchoring groove is formed in the base layer, the depth of the anchoring groove being twice the sum of the thicknesses of the polyurethane mortar base coat, polyurethane mortar intermediate coat, putty coat, and polyurethane colored sand mortar self-leveling layer, and the groove depth of the anchoring groove being twice the sum of the thicknesses of the polyurethane mortar base coat, polyurethane mortar intermediate coat, putty coat, and polyurethane colored sand mortar self-leveling layer;

[0008] Furthermore, the thickness of the polyurethane colored sand mortar self-leveling layer is 1.5-2.0 mm;

[0009] Furthermore, the polyurethane mortar trowel-applied self-leveling layer consists of five components: emulsion, curing agent, aggregate, colorant, and colored sand, in a ratio of 2.7:4.0:12.5:0.55:0.6. The mixed material is poured onto the already applied putty layer, and then, using a trowel, following the self-leveling construction process, the material is allowed to flow naturally and distribute evenly to form a smooth surface. The thickness is controlled within the range of 1.5-2.0 mm. Through repeated research, the inventors have found that the polyurethane mortar trowel-applied self-leveling layer achieves the best results when its thickness is within the range of 1.5-2.0 mm.

[0010] Furthermore, the thickness of the polyurethane mortar undercoat is 1.0-1.5 mm;

[0011] Furthermore, the polyurethane mortar undercoat is designed to seal the substrate layer, providing conditions for the adhesion of the polyurethane mortar intermediate layer. Through numerous experiments, the inventors have found that when the thickness of the polyurethane mortar undercoat is less than 1.0 mm, it is difficult to seal the substrate, which is detrimental to the subsequent construction of the polyurethane mortar intermediate layer, putty layer, and polyurethane colored sand mortar self-leveling layer, and also increases material usage. When the thickness of the polyurethane mortar undercoat is greater than 1.5 mm, the sealing effect and leveling effect on the substrate layer are not significant, but the cost increases. When the thickness of the polyurethane mortar undercoat is 1.0–1.5 mm, it can seal the substrate layer, and at a lower cost, it results in a floor with greater impact resistance and adhesion strength, extending the service life of the floor.

[0012] Furthermore, the thickness of the polyurethane mortar trowel-coated intermediate layer is 0.8-1.0 mm;

[0013] Furthermore, the preferred thickness of the polyurethane mortar trowel intermediate layer is as described above, which can ensure the adhesion strength of the polyurethane mortar base layer, ensure good construction of the polyurethane mortar trowel intermediate layer, ensure that the base layer is completely sealed, ensure the flatness and aesthetics of the floor, and ensure that the production cost of the floor is low.

[0014] Furthermore, the thickness of the putty coating is 0.9-1.2mm. Through repeated research, the inventors have found that the best effect is achieved when the thickness of the putty coating is in the range of 0.9-1.2mm.

[0015] Furthermore, anchoring grooves are cut into the base layer, allowing the coating to be embedded in the concrete substrate, forming an anchor bolt effect. This buffers shrinkage stress and prevents the coating from delaminating or cracking from the concrete base. It also prevents surface stress deformation during the hardening and curing process of each coating, resulting in a floor with better mechanical strength and service life. Moreover, through repeated research by the inventors, it has been found that when the anchoring grooves are of the aforementioned depth and width, they can better prevent surface stress concentration from causing deformation, which would affect subsequent construction and the aesthetics of the floor.

[0016] Furthermore, the horizontal distance between adjacent anchoring grooves is 3 to 5 meters. The above-mentioned installation of anchoring grooves is beneficial to the fixation of the entire floor. In actual use, anchoring grooves need to be opened at all free edge positions.

[0017] Furthermore, the surface of the base layer is roughened by sandblasting to enhance the adhesion between the base layer and the floor. The inventors have found that when the surface roughness of the base layer is greater than 0.8 mm, the adhesion between the base layer and the floor is better. When the surface roughness is less than 1 mm, the base layer can be sealed by applying an appropriate amount of polyurethane mortar to the underlayer.

[0018] The beneficial effects of this utility model are:

[0019] By setting up a polyurethane mortar base coat and a polyurethane mortar trowel intermediate coat, using a process of first scraping and then troweling, and with reasonable thickness control, a high degree of flatness can be achieved on the floor surface. By setting up a putty layer, fine pores, cracks, pinholes, and some uneven defects on the ground can be repaired, ensuring a flat, smooth, scratch-free, and particle-free surface, which facilitates the self-leveling top layer. Furthermore, by utilizing the color paste and colored sand in the polyurethane mortar trowel self-leveling layer, a rich variety of colors and beautiful decorative effects can be achieved, meeting the decorative requirements of different places for flooring. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of a polyurethane mortar colored sand self-leveling flooring according to a utility model;

[0021] In the diagram: 1. Base layer; 2. Polyurethane mortar base coat; 3. Polyurethane mortar intermediate coat; 4. Putty layer; 5. Polyurethane colored sand mortar self-leveling layer; 6. Anchor groove. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] Example 1

[0026] A polyurethane mortar self-leveling floor includes a base layer 1. Above the base layer 1, from bottom to top, there are polyurethane mortar scraping base layer 2, polyurethane mortar trowel-applied intermediate layer 3, putty scraping layer 4, and polyurethane colored sand mortar self-leveling layer 5. An anchoring groove 6 is formed on the base layer 1. The depth of the anchoring groove 6 is twice the sum of the thicknesses of the polyurethane mortar scraping base layer 2, polyurethane mortar trowel-applied intermediate layer 3, putty scraping layer 4, and polyurethane colored sand mortar self-leveling layer 5. The groove depth of the anchoring groove 6 is twice the sum of the thicknesses of the polyurethane mortar scraping base layer 2, polyurethane mortar trowel-applied intermediate layer 3, putty scraping layer 4, and polyurethane colored sand mortar self-leveling layer 5.

[0027] Furthermore, the thickness of the polyurethane colored sand mortar self-leveling layer 5 is 1.5-2.0 mm;

[0028] Furthermore, the polyurethane mortar trowel-applied self-leveling layer uses polyurethane mortar with a dosage of 2.5-3.0 kg / m². This layer consists of five components: emulsion, curing agent, aggregate, colorant, and colored sand, in a ratio of 2.7:4.0:12.5:0.55:0.6. The mixed material is poured onto the pre-applied putty layer, and then, using a trowel, the material is allowed to flow naturally and distribute evenly according to the self-leveling construction process, forming a smooth surface. The thickness is controlled within the range of 1.5-2.0 mm. Through repeated research, the inventors have found that the polyurethane mortar trowel-applied self-leveling layer achieves the best results when its thickness is within the range of 1.5-2.0 mm.

[0029] Furthermore, the thickness of the polyurethane mortar base coat 2 is 1.0-1.5mm;

[0030] Furthermore, the polyurethane mortar base coat 2 uses polyurethane mortar with a dosage of 1.7-2.0 kg / m2. The purpose of the polyurethane mortar base coat 2 is to seal the base layer 1 and provide conditions for the adhesion of the polyurethane mortar intermediate layer 3. Through multiple experiments, the inventors have found that when the thickness of the polyurethane mortar base coat 2 is less than 1.0 mm, it is difficult to seal the base layer, which is detrimental to the subsequent construction of the polyurethane mortar intermediate layer 3, putty layer 4, and polyurethane colored sand mortar self-leveling layer 5, and will increase the amount of material used. When the thickness of the polyurethane mortar base coat 2 is greater than 1.5 mm, the sealing effect and leveling effect of the base layer 1 are not significant, but the cost increases. When the thickness of the polyurethane mortar base coat 2 is 1.0-1.5 mm, it can seal the base layer 1, and under the premise of lower cost, the final floor has greater impact resistance and adhesion strength, and extends the service life of the floor.

[0031] Furthermore, the thickness of the intermediate layer 3 of the polyurethane mortar trowel coating is 0.8-1.0 mm;

[0032] Furthermore, the polyurethane mortar trowel intermediate layer 3 uses polyurethane material with a dosage of 0.8-1.5 kg / m2. The preferred thickness of the polyurethane mortar trowel intermediate layer 3 is as described above, which can ensure the adhesion strength of the polyurethane mortar base layer 2, ensure the good construction of the polyurethane mortar trowel intermediate layer 3, ensure that the base layer 1 is completely sealed, ensure the flatness and aesthetics of the floor, and ensure that the production cost of the floor is low.

[0033] Furthermore, the thickness of the putty coating layer 4 is 0.9-1.2mm. Through repeated research by the inventors, it was found that the effect is best when the thickness of the putty coating layer 4 is in the range of 0.9-1.2mm.

[0034] Furthermore, an anchoring groove 6 is cut into the base layer 1, so that the coating is embedded in the concrete substrate, forming an anchor bolt effect, buffering shrinkage stress, preventing the coating from delaminating and cracking from the concrete base layer, and preventing deformation caused by surface stress during the hardening and curing process of each coating, so that the resulting floor has better mechanical strength and service life. Moreover, through repeated research by the inventors, it has been found that when the anchoring groove 6 adopts the above-mentioned depth and width, it can better prevent surface stress concentration from causing deformation, which affects subsequent construction and the aesthetics of the floor.

[0035] Furthermore, the anchoring groove 6 is 8-10cm away from the wall and parallel to the wall. It is grooved with a mesh structure. The horizontal distance between adjacent anchoring grooves 6 is 3-5m. The above-mentioned installation of the anchoring groove 6 is conducive to the fixation of the entire floor. In actual use, anchoring grooves 6 need to be opened at all free edge positions.

[0036] Furthermore, the surface of the base layer 1 is roughened by sandblasting in order to enhance the adhesion between the base layer and the floor. The inventors have found that when the surface roughness of the base layer 1 is treated to be greater than 0.8 mm, the adhesion between the base layer and the floor is better. When the surface roughness is less than 1 mm, the appropriate amount of polyurethane mortar applied to the base layer 2 is sufficient to seal the base layer 1.

[0037] The construction method of polyurethane mortar colored sand self-leveling floor is as follows:

[0038] Step 1: Sandblasting roughening treatment of the base layer 1 to treat concrete surface defects and avoid potential problems in subsequent construction;

[0039] Step 2: Open the anchoring groove 6 to embed the coating into the concrete substrate, forming an anchor bolt effect, buffering shrinkage stress, and preventing the coating from delaminating and cracking from the concrete base.

[0040] Step 3: Apply GPU DF polyurethane mortar to form polyurethane mortar base layer 2, which is used to isolate moisture from the base layer 1 and reinforce the base layer 1.

[0041] Step 4: Apply GPU DL polyurethane mortar by trowel to form the polyurethane mortar intermediate layer 3, which is used to repair uneven parts that are still uneven after the base layer has been leveled;

[0042] Step 5: Apply putty slurry to form putty layer 4, which is used to repair fine pores, cracks, pinholes and some uneven defects on the ground;

[0043] Step 6: Prepare GPU CL-S polyurethane mortar. Mix the emulsion, color paste, and curing agent at high speed for 60 seconds until uniform. Then, pour the colored sand into the aggregate and add it together. Mix at high speed for 90 seconds. The mixed mortar should be poured onto the ground immediately for self-leveling to form a polyurethane mortar trowel self-leveling layer.

[0044] Step 7: Defoaming treatment. Use a defoaming roller repeatedly to eliminate air bubbles in the coating, prevent the formation of hollows or holes, and make the coating surface smoother and more beautiful.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A polyurethane mortar colored sand self-leveling floor, comprising a base layer (1), characterized in that, Above the base layer (1), from bottom to top, there are polyurethane mortar scraping base layer (2), polyurethane mortar trowel coating intermediate layer (3), putty scraping layer (4), and polyurethane colored sand mortar self-leveling layer (5); the base layer (1) is provided with an anchoring groove (6), the depth of the anchoring groove (6) is twice the sum of the thicknesses of the polyurethane mortar scraping base layer (2), polyurethane mortar trowel coating intermediate layer (3), putty scraping layer (4), and polyurethane colored sand mortar self-leveling layer (5), and the groove depth of the anchoring groove (6) is twice the sum of the thicknesses of the polyurethane mortar scraping base layer (2), polyurethane mortar trowel coating intermediate layer (3), putty scraping layer (4), and polyurethane colored sand mortar self-leveling layer (5).

2. The polyurethane mortar colored sand self-leveling floor according to claim 1, characterized in that, The thickness of the polyurethane mortar base coat (2) is 1.0-1.5 mm.

3. The polyurethane mortar colored sand self-leveling floor according to claim 2, characterized in that, The thickness of the polyurethane mortar trowel coating intermediate layer (3) is 0.8-1.0 mm.

4. The polyurethane mortar colored sand self-leveling floor according to claim 3, characterized in that, The thickness of the putty coating (4) is 0.9-1.2 mm.

5. The polyurethane mortar colored sand self-leveling floor according to claim 4, characterized in that, The thickness of the polyurethane colored sand mortar self-leveling layer (5) is 1.5-2.0 mm.

6. The polyurethane mortar colored sand self-leveling floor according to claim 5, characterized in that, The anchoring groove (6) is 8-10cm away from the wall and parallel to the wall. It is slotted with a mesh structure and the horizontal distance between adjacent anchoring grooves (6) is 3-5m.

7. The polyurethane mortar colored sand self-leveling floor according to claim 6, characterized in that, The surface of the base layer (1) is roughened by sandblasting, and the surface roughness is 0.8 to 1 mm.

Images