An indoor rammed earth column made by using a real ramming process

Abstract

The application provides an indoor rammed earth column made by using a real ramming process, which comprises a decorative main frame, a base layer panel, a steel wire mesh, vertical reinforcing bars and a rammed earth layer, the decorative main frame forms a main body structure of the rammed earth column, corner fittings are arranged on the decorative main frame, the base layer panel is arranged around the outside of the decorative main frame, the steel wire mesh is arranged around the outside of the base layer panel, the steel wire mesh is fixedly connected with the main frame through bolts, the end of the corner fitting penetrates the base layer panel and the steel wire mesh, the vertical reinforcing bars penetrate the corner fittings from top to bottom and are installed on the corner fittings, the rammed earth layer is arranged outside the steel wire mesh, and a bonding layer is formed between the rammed earth layer and the steel wire mesh by slurry throwing. The indoor rammed earth column adopts a decorative support frame as a main support structure, forms a rammed earth column with a hollow structure, reduces the overall weight of the rammed earth column without affecting the aesthetic feeling of the rammed earth column, and realizes the application of the ramming process in the field of indoor decoration.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of indoor building decoration, and particularly relates to an indoor rammed earth column made by using a real ramming process. BACKGROUND

[0002] Traditional rammed earth technology has been used in China for a long time, from the Neolithic Age to the 1950s and 1960s. Due to the characteristics of rammed earth buildings such as local material, simple construction, warm in winter and cool in summer, low cost, etc., rammed earth buildings are still widely used in rural housing construction in western regions. The rammed earth of traditional rammed earth houses is mainly made of local undisturbed soil, and its application is mainly concentrated in the main body and enclosure structure of houses, and the very heavy rammed solid wall method is mostly used, which has complex construction process and high cost.

[0003] In modern buildings, in order to improve the aesthetic feeling of buildings, rammed earth structures are often arranged in some large hotels, banquet halls and conference centers. Due to the over-thick and heavy rammed earth wall, it is difficult to use it only as a decorative structure in the room. How to reduce the weight of the rammed earth building while ensuring its structural stability is a problem that needs to be solved in the field of building decoration.

[0004] A Chinese invention patent with the patent number CN201911032099.2 discloses a preparation method of a decorative thin-wall rammed earth wall. Fixed bolts are arranged on the surface of the main body to be decorated, and angle steels are arranged in the vertical direction. A screw rod is arranged on the fixed bolt, a thin-wall rammed earth wall formwork is erected on the surface of the gun head through the screw rod, soil material is added between the wall and the thin-wall rammed earth wall formwork, and the soil wall is rammed. The above-mentioned process overcomes the problem of heavy weight of the ship body rammed earth wall, but it needs to rely on the wall and cannot be used to make a three-dimensional rammed earth structure alone. SUMMARY

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a rammed earth column made by using a real ramming process, which solves the problems of heavy weight, high cost and difficulty in being used only as a decorative structure in the prior art.

[0006] To achieve the above and other related objectives, this invention provides a rammed earth column manufactured using a compaction process, comprising a decorative main frame, a base panel, a wire mesh, vertical reinforcing ribs, and rammed earth layers. The decorative main frame forms the main structure of the rammed earth column. The decorative main frame includes supporting square steel, transverse square steel, longitudinal square steel, and connecting square steel. The bottom end of the supporting square steel is fixedly installed on the ground. The transverse square steel is arranged in multiple layers, from the lower right to the top, surrounding the supporting square steel according to the shape of the rammed earth column. The longitudinal square steel connects the transverse square steel between layers, and the connecting square steel connects different spatial points within each layer of transverse square steel. In this configuration, the contact points of the supporting square steel, the transverse square steel, the longitudinal square steel, and the connecting square steel are all welded together. The transverse square steel is uniformly provided with corner brackets along its circumference. A base panel is installed around the outside of the main decorative frame. A wire mesh is installed around the outside of the base panel. The wire mesh is fixed to the main frame with bolts. The ends of the corner brackets penetrate the base panel and the wire mesh. Vertical reinforcing ribs penetrate vertically and are installed on the corner brackets. A rammed earth layer is installed outside the wire mesh. The vertical reinforcing ribs are located inside the rammed earth layer. A bonding layer is formed between the rammed earth layer and the wire mesh by grouting.

[0007] As a preferred technical solution, the base panel includes a flame-retardant board and a calcium silicate board from the inside out.

[0008] As a preferred technical solution, the plane of the transverse square steel is perpendicular to the supporting square steel, the longitudinal square steel is parallel to the supporting square steel, the connecting square steel is parallel to the supporting square steel, one side of the connecting square steel is in contact with the supporting square steel, and one side of a portion of the longitudinal square steel is in contact with the supporting square steel.

[0009] As a preferred technical solution, the transverse square steel includes a straight segment and an arc segment, the arc segment is connected to the supporting square steel through an L-shaped square steel, and the corner of the L-shaped square steel is located at the arc segment connection.

[0010] As a preferred technical solution, the vertical reinforcing ribs are staggered with the longitudinal square steel bars.

[0011] As a preferred technical solution, a skirting board is provided on the outer periphery of the main decorative frame, forming a gap between the skirting board and the main decorative frame. The base panel and wire mesh are located within the gap, and the vertical reinforcing ribs and rammed earth layer are located on the upper part of the skirting board. The outer edge of the skirting board protrudes from the rammed earth layer.

[0012] As a preferred technical solution, the rammed earth layer is coated with a protective agent.

[0013] As a preferred technical solution, the rammed earth layer is made of a mixture of rammed earth powder, small stones and water.

[0014] As a preferred technical solution, the adhesive layer is made of a mixture of glue, cement and mortar.

[0015] As described above, the indoor rammed earth column of the present invention has the following beneficial effects:

[0016] (1) The indoor rammed earth column of the present invention adopts a decorative support frame as the main support structure, and rammed earth is carried out on the outside of the main support structure to form a rammed earth column with a hollow internal structure. Without affecting the aesthetics of the rammed earth column, the overall weight of the rammed earth column is reduced, the production cost of the rammed earth column is reduced, and the application of rammed earth technology in the field of interior decoration is realized.

[0017] (2) By applying slurry between the rammed earth layer and the wire mesh, the present invention improves the adhesion between the rammed earth layer and the wire mesh, prevents the rammed earth layer from falling off the wire mesh, and ensures the stability of the overall structure of the rammed earth column.

[0018] (3) The present invention sets corner brackets on the main decorative frame. The corner brackets penetrate the base panel and the wire mesh. The corner brackets connect the vertical reinforcing bars, which are embedded in the rammed earth layer. This makes the various parts of the rammed earth column connected into a unified whole, avoiding the separation between the layers.

[0019] (4) The decorative support frame of the present invention is formed by welding supporting square steel, transverse square steel, longitudinal square steel and connecting square steel. The square steels restrict each other to ensure that the supporting steel frame will not deform. At the same time, the supporting steel frame is covered with flame-retardant board and calcium silicate board, so that the rammed earth column has flame-retardant properties while ensuring that the rammed earth material will not enter the interior of the decorative steel frame during the ramming process. Attached Figure Description

[0020] Figure 1 This is one of the structural schematic diagrams of the decorative main frame in the indoor rammed earth column of the present invention.

[0021] Figure 2 The second schematic diagram shows the structure of the main decorative frame in the indoor rammed earth column of this invention.

[0022] Figure 3 The diagram shows the structure of the base panel, wire mesh, and vertical reinforcing bars in the indoor rammed earth column of this invention.

[0023] Figure 4 The diagram shows the installation structure of the skirting board and decorative main frame in the indoor rammed earth column of this invention.

[0024] Figure 5 The diagram shows the pouring structure of the rammed earth layer for the indoor rammed earth column of this invention.

[0025] Figure 6 The diagram shown is a schematic representation of the layered structure of the indoor rammed earth column of this invention.

[0026] The specific descriptions of the attached drawings are as follows: 1. Decorative main frame; 11. Supporting square steel; 12. Horizontal square steel; 13. Longitudinal square steel; 14. Connecting square steel; 15. L-shaped square steel; 2. Angle bracket; 3. Flame retardant board; 4. Calcium silicate board; 5. Wire mesh; 6. Vertical reinforcing rib; 7. Skirting board; 8. Adhesive layer; 9. Casting mold; 10. Angle steel; 110. Rammed earth layer. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0028] Please see Figures 1 to 6 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0029] This embodiment provides an indoor rammed earth column made using the compaction process, including a decorative main frame 1, a base panel, a wire mesh 5, vertical reinforcing bars 6, and a rammed earth layer 11.

[0030] like Figures 1-2As shown, the decorative main frame 1 is used to form the main structure of the indoor rammed earth column. The decorative main frame 1 is connected to the ground by an embedded plate, which is fixed to the ground by chemical bolts. The size of the embedded plate is 350*350*10 mm, and the chemical bolts used are RM12 chemical bolts. At the same time, an embedded plate is set at the connection between the decorative main frame 1 and the wall. The embedded plate is fixed to the wall by chemical bolts. The size of the embedded plate at this location is 200*200*8 mm, and the chemical bolts used are RM12 chemical bolts. The embedded plates at the ground and the embedded plates at the wall must be secure after installation, and there should be no looseness or suspension. The main decorative frame 1 is constructed from welded square steel, including supporting square steel 11, transverse square steel 12, longitudinal square steel 13, and connecting square steel 14. In this embodiment, the supporting square steel 11 is made of 400*200*8mm hot-dip galvanized square tubing. The bottom end of the hot-dip galvanized square tubing is welded to an embedded plate on the ground. The verticality of the supporting square steel 11 is adjusted within the allowable error range, and the weld points are treated with rust prevention. The transverse square steel 12 is made of 50*50*5mm hot-dip galvanized square tubing, arranged in multiple layers from the lower right to the upper left outside the supporting square steel 11. The spacing between the layers of transverse square steel 12 is 600mm. The transverse square steel 12 forms a closed-loop structure, creating the shape of a rammed earth column, including straight and curved sections. Angle brackets 2 are pre-embedded on the transverse square steel 12 for easy later connection. The spacing between the angle brackets 2 is 400mm, and the size of the angle brackets 2 is 50*50*5mm. All weld points are treated with rust prevention. The longitudinal square steel 13 connects the transverse square steel 12 between layers. The longitudinal square steel 13 is made of 50*50*5mm hot-dip galvanized square tubing, and all weld points are treated with rust prevention. The connecting square steel 14 connects different spatial points in each layer of transverse square steel 12. The contact points of the supporting square steel 11, transverse square steel 12, longitudinal square steel 13, and connecting square steel 14 are all welded connections. The transverse square steel 12 includes straight segments and curved segments. The curved segments are connected to the supporting square steel 11 by L-shaped square steel 15, and the corners of the L-shaped square steel 15 are connected to the curved segments. The plane of the transverse square steel 12 is perpendicular to the supporting square steel 11, the longitudinal square steel 13 is parallel to the supporting square steel 11, and the connecting square steel 14 is parallel to the supporting square steel 11. One side of the connecting square steel 14 is attached to the supporting square steel 11, and one side of part of the longitudinal square steel 13 is attached to the supporting square steel 11.

[0031] like Figure 3As shown, the main decorative frame 1 is surrounded by a base panel, and the base panel is surrounded by a wire mesh 5. The wire mesh 5 is fixedly connected to the transverse square steel 12 and the longitudinal square steel 13 by bolts. The end of the angle bracket 2 passes through the base panel and the wire mesh 5. The base panel can only be installed after the concealed acceptance of the main decorative frame 1 is qualified. The base panel includes a flame-retardant board 3 and a calcium silicate board 4. The flame-retardant board 3 is set inside the calcium silicate board 4. Due to the insufficient plasticity and nail-holding power of the calcium silicate board 4, the base uses a 15mm thick flame-retardant board 3. Flame-retardant board 3, with grooves and bends at the arc-shaped positions, is fixed to a 50*50*5mm hot-dip galvanized square tube using self-drilling screws. After the flame-retardant board 3 is fixed, its flatness is inspected. Once the inspection is passed, calcium silicate board 4 is laid on top of the flame-retardant board 3. At the arc-shaped positions, calcium silicate board 4 is cut into strips and tightly spliced ​​with automatic screws at intervals of 150-170mm. The corner bracket 2 can be installed by manually cutting the board material. Dust removal equipment should be used to remove dust during cutting. For ease of installation, the positions of corner bracket 2 can be marked on the base panel before drilling holes. Wire mesh 5 is covered with calcium silicate board 4 and fixed to the main frame with bolts. To increase the strength between the rammed earth and the calcium silicate board, a slurry treatment is required to form an adhesive layer 8. The adhesive layer 8 is made of a mixture of glue, cement, and mortar. Before slurrying, the calcium silicate board and wire mesh 5 are cleaned and the reinforcing bars are moistened with water. The premixed material is gradually and evenly applied to the wire mesh 5, with each application of slurry being uniform and moderate. Vertical reinforcing ribs 6 are welded onto corner bracket 2. The vertical reinforcing ribs 6 are made of hot-dip galvanized square tubes with a specification of 20*20*2. The vertical reinforcing ribs 6 are used to increase the reliability of the vertical reinforcing ribs 6. When welding the vertical reinforcing ribs 6, ensure that the verticality of each vertical reinforcing rib 6 is within the allowable error range. The weld joints are treated with rust prevention. The vertical reinforcing ribs 6 are staggered with the longitudinal square steel 13.

[0032] like Figure 4 As shown, a skirting board 7 is provided on the outside of the main frame 1, forming a gap between the skirting board 7 and the main frame 1. The base panel and wire mesh 5 are located in the gap. The vertical reinforcing ribs 6 and the rammed earth layer 11 are located on the upper part of the skirting board 7, and the outer edge of the skirting board 7 protrudes from the rammed earth layer 11.

[0033] like Figures 5-6As shown, to achieve the desired rammed earth effect, the casting mold 9 is supported by transparent plexiglass to control the layers, texture, and color of the rammed earth. During casting, the casting mold 9 is erected from bottom to top, with the bottom layer of casting mold 9 placed on the kick plate 7. The mold is adjusted vertically according to the site boundary line and fixed on the outside using L40 angle steel 10, with the spacing between angle steel 10 not exceeding 400mm. The materials used for the rammed earth layer 11 must be mixed on-site strictly according to the rammed earth material mix ratio. The amount of each raw material for each batch of rammed earth is determined according to the mix ratio, and the weighing standards for rammed earth powder and small stones are fixed separately. Each batch is weighed during loading. The loading sequence should be: first load the rammed earth powder, then the small stones, mix evenly, and then add an appropriate amount of water according to the viscosity requirements, using a mixer. The mixing time is determined based on the experimental results of the shortest rammed earth mixing time. Before feeding the material, clean the debris inside the casting mold 9 and the oil stains on the vertical reinforcing ribs 6, and check the positional relationship between the vertical reinforcing ribs 6 and the rammed soil layer 11. The casting mold 9 should be evenly coated with a release agent before feeding. The mixed rammed soil material can be transported on-site using wheelbarrows, buckets, etc. After mixing and unloading, it should be transported to the feeding location promptly, and the delay should not exceed the initial setting time of the rammed soil material. The rammed soil material should be poured into the mold using an iron shovel or a specially made small hopper. The rammed soil material should be poured into the mold in layers and compacted layer by layer, with each layer's thickness controlled between 80 and 150 mm. When tamping the rammed soil material, do not touch the vertical reinforcing ribs 6 and the corner brackets 2. During tamping, check the hammer's condition frequently to avoid bulging, hollow areas, etc. The hammer's movement interval should be less than 100 mm, and the duration of each hammer point should be until a layer of slurry appears on the surface. Pay attention to the wire mesh 5 during tamping. To prevent missed hammering, continuous tamping must be performed on both sides of the vertical reinforcing ribs 6. The rammed earth structure can be demolded 72 hours after setting. After demolding, promptly repair any holes left by the casting mold 9 on the rammed earth column according to the color and texture effect, and protect the finished product. The curing time for rammed earth columns is 14 days in summer and 28 days in winter. After the moisture content is less than 10%, apply the protective agent. General defects do not need to be repaired. For defects such as contamination or obvious grout leakage on the rammed earth wall surface, appropriate repairs should be made before applying the protective agent. The rammed earth wall protective agent should be diluted with water according to the appropriate ratio, stirred evenly, and applied by spraying or brushing. Two coats should be applied, with the second coat applied before the first coat is completely dry, and it must completely cover the surface without dripping or missing areas.

[0034] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. An indoor rammed earth column manufactured using a compaction process, characterized in that, The structure includes a decorative main frame, a base panel, wire mesh, vertical reinforcing ribs, and a rammed earth layer. The decorative main frame forms the main structure of the rammed earth column. The main frame includes supporting square steel, horizontal square steel, longitudinal square steel, and connecting square steel. The bottom of the supporting square steel is fixed to the ground. The horizontal square steel is arranged in multiple layers, following the shape of the rammed earth column, around the outside of the supporting square steel. The longitudinal square steel connects the horizontal square steel between layers. The connecting square steel connects different spatial points within each layer of horizontal square steel. The contact points of the supporting square steel, horizontal square steel, longitudinal square steel, and connecting square steel are all welded. Angle brackets are evenly arranged along the circumference of the horizontal square steel. The base panel surrounds the outside of the decorative main frame. A wire mesh is installed around the main frame and fixed to it with bolts. The end of the corner bracket passes through the base panel and the wire mesh. Vertical reinforcing ribs pass through the corner brackets vertically and are installed on them. A rammed earth layer is set outside the wire mesh, and the vertical reinforcing ribs are located inside the rammed earth layer. A mortar layer is applied between the rammed earth layer and the wire mesh to form an adhesive layer. A skirting board is installed outside the main frame, forming a gap between the skirting board and the main frame. The base panel and wire mesh are located within the gap. The vertical reinforcing ribs and the rammed earth layer are located on the upper part of the skirting board, and the outer edge of the skirting board protrudes from the rammed earth layer. A casting mold is erected from bottom to top, with the lowest casting mold erected on the skirting board and fixed to the outside with angle steel.

2. An indoor rammed earth column manufactured using the compaction process as described in claim 1, characterized in that, The base panel consists of a flame-retardant board and a calcium silicate board from the inside out.

3. An indoor rammed earth column manufactured using the compaction process as described in claim 1, characterized in that, The plane containing the transverse square steel is perpendicular to the supporting square steel, the longitudinal square steel is parallel to the supporting square steel, the connecting square steel is parallel to the supporting square steel, one side of the connecting square steel is in contact with the supporting square steel, and one side of a portion of the longitudinal square steel is in contact with the supporting square steel.

4. An indoor rammed earth column manufactured using the compaction process as described in claim 1, characterized in that, The transverse square steel includes a straight segment and an arc segment. The arc segment is connected to the supporting square steel through an L-shaped square steel, and the corner of the L-shaped square steel is located at the arc segment connection.

5. An indoor rammed earth column manufactured using the compaction process as described in claim 1, characterized in that, The vertical reinforcing ribs are staggered with the longitudinal square steel bars.

6. An indoor rammed earth column manufactured using the compaction process as described in claim 1, characterized in that, The rammed earth layer is coated with a protective agent.

7. An indoor rammed earth column manufactured using the compaction process as described in claim 1, characterized in that, The rammed earth layer is made of a mixture of rammed earth powder, small stones and water.

8. An indoor rammed earth column manufactured using the compaction process as described in claim 1, characterized in that, The adhesive layer is made of a mixture of glue, cement, and mortar.

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