Dust-like or mud-like pressed concrete artistic floor structure and construction method thereof

Abstract

The present invention discloses a dust- or mud-like pressed concrete floor structure and its construction method. Expansion joints are formed between multiple molded units through formwork cast in a natural and aesthetically pleasing manner. Furthermore, contraction joints are cut on the molded units using irregular cuts during initial setting of the concrete. Furthermore, the use of fully dyed concrete allows for color replenishment of the surface layer as it fades over time, thus preventing fading. The structure is durable, practical, and enhances the surface's aesthetic appearance. This invention addresses the problem of existing colored concrete floors developing various cracks and significant color variations over time.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a dust-imitation or mud-imitation pressed-film concrete artistic floor structure and a construction method thereof. Background Art

[0002] With my country's sustained economic growth and technological advancements, people's living standards are rising, tourism is booming, and people's expectations for project quality are increasing. While the emergence of colored concrete art floors satisfies people's pursuit of beauty, it also increases the difficulty of construction. Existing colored concrete floors often develop cracks and significant color variations over time.

[0003] The information disclosed in this background technology section is only intended to enhance understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0004] In order to overcome the defects of the existing technology, a dust-like or mud-like pressed concrete artistic floor structure and a construction method thereof are now provided to solve the problem that the existing colored concrete floor has various cracks and large color differences after being used for a long time.

[0005] To achieve the above object, a dust-imitation or mud-imitation pressed concrete artistic floor structure is provided, comprising:

[0006] lime soil foundation;

[0007] A crushed stone cushion layer is laid on the lime soil foundation;

[0008] A plurality of molded unit blocks are spliced together, and the molded unit blocks are cast on the gravel cushion layer by using a supporting formwork. After the template between two adjacent molded unit blocks is removed, an expansion joint is formed, and an expansion joint plate is embedded in the expansion joint. A post-pouring space is formed between the upper part of the side wall of the expansion joint and the top of the expansion joint plate. The post-pouring space is filled with sealing glue. The molded unit block includes a concrete cushion layer, and the concrete cushion layer is cast on the gravel cushion layer. The concrete cushion layer is paved with an isolation and anti-cracking layer. The isolation and crack prevention layer is cast with a molded surface layer, which is cast with dyed concrete throughout, and is paved with a color intensifier layer, which is paved with a demoulding curing agent layer, which is paved with a chemical coloring layer, which is paved with a transparent sealant layer, and a steel mesh layer is embedded in the molded surface layer, and a force transfer rod is passed through the expansion joint plate, and both ends of the force transfer rod are respectively anchored in two adjacent molded unit blocks, and a cutting shrinkage joint is formed on the top of the molded surface layer.

[0009] Furthermore, the lime soil foundation includes a first lime soil layer and a second lime soil layer laid on the first lime soil layer. The thickness of the first lime soil layer is 200 mm, and the lime content of the first lime soil layer is 4%. The thickness of the second lime soil layer is 400 mm, and the lime content of the second lime soil layer is 6%.

[0010] Furthermore, the isolation and anti-cracking layer is a plastic film isolation and anti-cracking layer.

[0011] Furthermore, a settlement joint is formed between the molded unit block and the surrounding building structure.

[0012] Furthermore, the expansion joint is in an irregular curve shape.

[0013] Furthermore, the transparent sealant layer is a dipropylene glycol sealant.

[0014] The present invention provides a construction method for a dust-imitation or mud-imitation pressed concrete artistic floor structure, comprising the following steps:

[0015] Compact to form a lime soil foundation;

[0016] Laying a crushed stone cushion layer on the lime soil foundation;

[0017] A plurality of molding unit blocks are cast on the gravel cushion layer, so that the plurality of molding unit blocks are sequentially spliced together. When casting the molding unit blocks, a vertically arranged template is supported on the gravel cushion layer so that the template and the gravel cushion layer are enclosed to form a casting space, a concrete cushion layer is cast on the gravel cushion layer in the casting space, an isolation and crack prevention layer is laid on the concrete cushion layer, and full-body dyed concrete is cast on the isolation and crack prevention layer, and a steel mesh layer and a force transmission rod are buried to form a molded surface layer. After the full-body dyed concrete of the molded surface layer is initially set, a molded surface layer is formed on the top of the molded surface layer. A cutting tool is used to form a cutting shrinkage joint and a color intensifier is sprinkled on the molded surface layer to form a color intensifier layer. A demoulding curing agent is sprinkled on the color intensifier layer and the art floor mold is used to press the mold to form an imitation dust or imitation mud texture on the upper surface of the molded surface layer. After the imitation dust or imitation mud texture is formed on the molded surface layer, the upper surface of the molded surface layer is chemically colored to form a chemical coloring layer. A transparent sealant is applied to the chemical coloring layer to form a transparent sealant layer. When casting adjacent molded unit blocks, the other end of the force transmission rod is buried in the molded surface layer of the adjacent molded unit block.

[0018] Furthermore, the plurality of molding unit blocks are cast using a skip-bin method.

[0019] The beneficial effect of the present invention is that the dust-like or mud-like pressed concrete artistic floor structure of the present invention forms expansion joints between multiple molded unit blocks through formwork cast by supporting formwork, which is naturally beautiful. On the other hand, the molded unit blocks are provided with cutting contraction joints, and the surface is cut with an irregular knife when the concrete is initially set. At the same time, the use of dyed concrete can replenish the color of the surface layer after it fades over time, which plays a role in inhibiting fading. It is durable and practical, and improves the appearance of the surface layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0021] Figure 1 Schematic diagram of the structure of the dust-imitation or mud-imitation pressed concrete artistic floor structure according to an embodiment of the present invention.

[0022] Figure 2 Schematic diagram of the layout of the force transmission rods according to an embodiment of the present invention.

[0023] Figure 3 Schematic diagram of the structure of the top of the expansion joint according to an embodiment of the present invention.

[0024] Figure 4 Schematic diagram of the structure of the cutting shrinkage joint according to an embodiment of the present invention.

[0025] Figure 5 Schematic diagram of the structure of the isolation gap in an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] Reference Figures 1 to 5 As shown, the present invention provides an imitation dust or mud pressed concrete artistic floor structure, comprising: a lime soil foundation 1, a crushed stone cushion layer 2 and a plurality of molded unit blocks 3.

[0029] In this embodiment, the lime soil foundation 1 includes a first lime soil layer and a second lime soil layer.

[0030] The second lime soil layer is laid on the first lime soil layer. The first lime soil layer is 200 mm thick and has a lime content of 4%. The second lime soil layer is 400 mm thick and has a lime content of 6%.

[0031] The crushed stone cushion layer 2 is laid on the lime soil foundation 1. The thickness of the crushed stone cushion layer 2 is 100 mm.

[0032] A plurality of molded unit blocks 3 are cast on a gravel cushion layer and spliced together. In this embodiment, the plurality of molded unit blocks 3 are spliced together in sequence along a horizontal direction.

[0033] The molded unit blocks 3 are cast on the gravel cushion 2 using a formwork system. After the formwork is removed, an expansion joint a is formed between two adjacent molded unit blocks 3. An expansion joint plate 34 is embedded in the expansion joint a. A post-casting space is formed between the upper portion of the sidewall of the expansion joint a and the top of the expansion joint plate 34. This post-casting space is filled with sealing glue 323.

[0034] In this embodiment, the expansion joint a is an irregular curved shape. The expansion joint a is set along the entire length. Irregular arcs are required when supporting concrete formwork. When large-scale construction does not have enough time for press molding, multiple molding unit blocks can be constructed in groups.

[0035] The molded unit block 3 includes a concrete base layer 31 and a molded surface layer 32 .

[0036] The concrete cushion layer 31 is poured on the gravel cushion layer 2. The concrete cushion layer 31 is paved with an isolation and crack prevention layer 33. In this embodiment, the isolation and crack prevention layer 33 is a plastic film isolation and crack prevention layer 33.

[0037] The isolation and crack prevention layer 33 is cast with a molded surface layer 32 .

[0038] The molded surface layer 32 is cast using fully dyed concrete. A color enhancer layer is applied to the molded surface layer 32. A release curing agent layer is applied to the color enhancer layer. A chemical coloring layer is applied to the release curing agent layer. A transparent sealant layer is applied to the chemical coloring layer.

[0039] In this embodiment, the transparent sealant layer is a dipropylene glycol sealant.

[0040] A steel mesh layer 321 is embedded in the molded surface layer 32. Figure 1 and Figure 2 As shown, a force transmission rod is provided in the expansion joint plate 34. The two ends of the force transmission rod are anchored in two adjacent molded unit blocks 3 respectively.

[0041] In this embodiment, see Figure 4 As shown, a cutting shrinkage joint b is formed on the top of the molded surface layer 32. The spacing of the cutting shrinkage joint is ≤ 6m, the joint width is 5mm to 8mm, and the joint depth is not less than 1 / 3 of the concrete thickness.

[0042] See Figure 5 As shown, at the intersection with other working surfaces or surrounding building structures 4, settlement joints are formed between the molded unit blocks 3 and the surrounding building structures 4. The settlement joints are 15mm to 20mm wide and extend through the concrete. Settlement joints are formed between the molded unit blocks 3 and the surrounding building structures 4.

[0043] The spacing between expansion joints is ≤18m, the joint width is 15-20mm, and the joint depth runs through the concrete.

[0044] The concrete cushion layer shall be provided with expansion joints in accordance with the national concrete road construction specifications. If the concrete cushion layer has been installed, the molded surface layer shall be provided with corresponding expansion joints at its projection position.

[0045] The dust-like or mud-like pressed concrete artistic floor structure of the present invention forms expansion joints between multiple molded unit blocks through formwork cast by supporting formwork, which is naturally beautiful. On the other hand, cut contraction joints are set on the molded unit blocks, and the surface is cut with an irregular knife when the concrete is initially set. At the same time, the use of dyed concrete can replenish the color of the surface layer after it fades over time, which plays a role in inhibiting fading. It is durable and practical, and improves the appearance of the surface layer.

[0046] The present invention provides a construction method for a dust-imitation or mud-imitation pressed concrete artistic floor structure, comprising the following steps:

[0047] S1: compacting to form a lime soil foundation 1.

[0048] S2: Lay a crushed stone cushion layer 2 on the lime soil foundation 1.

[0049] S3: Casting a plurality of molded unit blocks 3 on the gravel cushion layer 2 so that the plurality of molded unit blocks 3 are spliced together in sequence.

[0050] When casting the molded unit block 3, a vertical template is supported on the gravel cushion layer 2 so that the template and the gravel cushion layer 2 are enclosed to form a casting space, and a concrete cushion layer 31 is cast on the gravel cushion layer 2 in the casting space. An isolation and crack prevention layer 33 is laid on the concrete cushion layer 31, and a full-body dyed concrete is cast on the isolation and crack prevention layer 33 and a steel mesh layer 321 and a force transmission rod are buried to form a molded surface layer 32. After the full-body dyed concrete of the molded surface layer 32 is initially set, a cutter is used to cut a shrinkage joint b on the top of the molded surface layer 32 and the molded surface layer 32 is formed. The surface layer 32 is sprinkled with a color intensifier and light-collected to form a color intensifier layer, a demoulding curing agent is sprinkled on the color intensifier layer and the art floor mold is used to press the mold to form imitation dust or imitation mud texture on the upper surface of the molded surface layer 32, after the imitation dust or imitation mud texture is formed on the molded surface layer 32, the upper surface of the molded surface layer 32 is chemically colored to form a chemical coloring layer, and a transparent sealant is applied to the chemical coloring layer to form a transparent sealant layer, and when casting the adjacent molded unit block 3, the other end of the force transmission rod is buried in the molded surface layer 32 of the adjacent molded unit block 3.

[0051] In this embodiment, a plurality of molding unit blocks 3 are cast using a skip-bin method.

[0052] The casting process of the molded unit block of the present invention includes: supporting the formwork, spreading colored concrete, raising the slurry and finishing, spreading the reinforcing material, fine finishing, adding the reinforcing material, secondary finishing, spreading the demoulding powder, imprinting the ground with the mold, closing the road, pickling and aging chemical coloring process, washing the artistic ground, applying the protective agent and the like.

[0053] Specifically, after the full-body dyed concrete of the molded surface layer is paved, when the full-body dyed concrete begins to set, the construction workers use a large trowel to finish the full-body dyed surface. When finishing, pay attention to whether there is any floating slurry on the surface. If there is any excess floating slurry, it should be manually scraped off. The purpose of the slurry is to completely combine the color reinforcement material with the concrete. If any large aggregate (stone) floats on the surface during the finishing process, it should be picked out.

[0054] After finishing is complete, it is crucial to time the initial setting of the through-body dyed concrete. When the surface moisture of the through-body dyed concrete has mostly evaporated, but it is still moist, you can apply the color reinforcement.

[0055] Spreading the color fortifier and finishing the surface are performed in two stages. The first spreading of the color fortifier should be done manually and evenly across the surface of the through-dyed concrete, based on the number of bins and construction areas. Once the artistic flooring fortifier has absorbed moisture from the through-dyed concrete and darkened evenly, begin finishing with a large trowel. Care should be taken not to over-rub the surface during this stage, as this may cause color variations or reveal the underlying color. Spread the remaining 1 / 3 of the material a second time. The second spreading is done to fill in areas where the through-dyed concrete's natural color is exposed. The color fortifier will also absorb moisture and darken. Once the surface is evenly moistened with the fortifier, a second finishing step is performed with a large trowel. The purpose of these two spreading stages is to ensure uniform coverage and penetration of the fortifier. If color variations and a mottled effect are desired, these can be achieved with a second spreading stage.

[0056] Spread the colored release agent (powder) for the artistic floor. The timing and uniformity of spreading the colored release powder for the artistic floor should also be mastered. Spreading the release powder should be done when preparing to start the mold.

[0057] Use artistic flooring molds to texture the floor surface. Artistic flooring molds should be used in pairs. First, determine the distribution direction of the texture, select the position and angle of the first mold, and then place the remaining molds closely adjacent to the first mold. Colored concrete artistic flooring molds are manually pressed to ensure consistent embossing depth and accurate mold placement.

[0058] After the surface is pressed, it is treated with 1-2 thick chemical coloring, and the surface is pickled and corroded to create an antique effect on the ground.

[0059] Once the texture is stamped, the construction site should be immediately closed to prevent unauthorized personnel from entering the work area and damaging the newly completed colored floor. Damaged artistic floors cannot be fully restored.

[0060] The artistic floor is closed for 2-3 days before washing. Under normal circumstances, in order to prevent the new road surface from being contaminated, all textures of the project are washed after the stamping is completed. When washing, it is not necessary to wash away all the release powder. About 10% of the release powder color should be left. This way, the artistic floor will have a good gradient effect and the floor will be more varied.

[0061] Finally, a single-component colorless transparent sealant is applied to the floor to seal the gaps on the concrete surface and protect the color from falling off. The sealant is generally made of dipropylene glycol polyurethane.

[0062] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. A dust-like or mud-like pressed concrete artistic floor structure, characterized in that: include: lime soil foundation; A crushed stone cushion layer is laid on the lime soil foundation; A plurality of molded unit blocks are spliced together, and the molded unit blocks are cast on the gravel cushion layer by using a supporting formwork. After the template between two adjacent molded unit blocks is removed, an expansion joint is formed, and an expansion joint plate is embedded in the expansion joint. A post-pouring space is formed between the upper part of the side wall of the expansion joint and the top of the expansion joint plate. The post-pouring space is filled with sealing glue. The molded unit block includes a concrete cushion layer, and the concrete cushion layer is cast on the gravel cushion layer. The concrete cushion layer is paved with an isolation and anti-cracking layer. The isolation and crack prevention layer is cast with a molded surface layer, which is cast with dyed concrete throughout, and is paved with a color intensifier layer, which is paved with a demoulding curing agent layer, which is paved with a chemical coloring layer, which is paved with a transparent sealant layer, and a steel mesh layer is embedded in the molded surface layer, and a force transfer rod is passed through the expansion joint plate, and both ends of the force transfer rod are respectively anchored in two adjacent molded unit blocks, and a cutting shrinkage joint is formed on the top of the molded surface layer.

2. The dust-imitation or mud-imitation pressed concrete artistic floor structure according to claim 1, characterized in that: The lime soil foundation includes a first lime soil layer and a second lime soil layer laid on the first lime soil layer. The thickness of the first lime soil layer is 200 mm, and the lime content of the first lime soil layer is 4%. The thickness of the second lime soil layer is 400 mm, and the lime content of the second lime soil layer is 6%.

3. The dust-imitation or mud-imitation pressed concrete artistic floor structure according to claim 1, characterized in that: The isolation and crack prevention layer is a plastic film isolation and crack prevention layer.

4. The dust-imitation or mud-imitation pressed concrete artistic floor structure according to claim 1, characterized in that: Settlement joints are formed between the molded unit blocks and the surrounding building structures.

5. The dust-imitation or mud-imitation pressed concrete artistic floor structure according to claim 1, characterized in that: The expansion joint is in an irregular curve shape.

6. The dust-imitation or mud-imitation pressed concrete artistic floor structure according to claim 1, characterized in that: The transparent sealant layer is a double propylene polyurethane sealant.

7. A construction method for the dust-imitation or mud-imitation pressed concrete artistic floor structure according to any one of claims 1 to 6, characterized in that: The following steps are involved: Compact to form a lime soil foundation; Laying a crushed stone cushion layer on the lime soil foundation; A plurality of molding unit blocks are cast on the gravel cushion layer, so that the plurality of molding unit blocks are sequentially spliced together. When casting the molding unit blocks, a vertically arranged template is supported on the gravel cushion layer so that the template and the gravel cushion layer are enclosed to form a casting space, a concrete cushion layer is cast on the gravel cushion layer in the casting space, an isolation and crack prevention layer is laid on the concrete cushion layer, and full-body dyed concrete is cast on the isolation and crack prevention layer, and a steel mesh layer and a force transmission rod are buried to form a molded surface layer. After the full-body dyed concrete of the molded surface layer is initially set, a molded surface layer is formed on the top of the molded surface layer. A cutting tool is used to form a cutting shrinkage joint and a color intensifier is sprinkled on the molded surface layer to form a color intensifier layer. A demoulding curing agent is sprinkled on the color intensifier layer and the art floor mold is used to press the mold to form an imitation dust or imitation mud texture on the upper surface of the molded surface layer. After the imitation dust or imitation mud texture is formed on the molded surface layer, the upper surface of the molded surface layer is chemically colored to form a chemical coloring layer. A transparent sealant is applied to the chemical coloring layer to form a transparent sealant layer. When casting adjacent molded unit blocks, the other end of the force transmission rod is buried in the molded surface layer of the adjacent molded unit block.

8. The construction method according to claim 7, characterized in that: The plurality of molding unit blocks are cast using a skip-bin method.

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