A method of additive manufacturing of a solid waste-based brick-soil structure composite

Abstract

The application discloses an additive manufacturing method of a solid waste-based brick-mud structure composite material, which uses alkali-activated solid waste materials as bricks and thermosetting resin furan resin as mud; the alkali-activated solid waste materials comprise, in terms of weight fractions, 80-85 parts of granite powder, 27.4-30 parts of slag, 5-8 parts of silica fume, 1.5-3 parts of fly ash, 0.41-0.43 parts of basalt fiber with a length of 0.8-1.2 mm, 25-27 parts of water, 3.0-3.5 parts of sodium hydroxide and 6.0-7.0 parts of sodium silicate solution; the granite powder is prepared into the brick-mud structure composite material by using a paving type additive and a laser subtractive synergistic process according to a particle gradation weight fraction ratio of 100-120 mesh:200 mesh=1:(1-1.5). Rolling is performed after paving of the "brick" layer and the "mud" layer each time, pressure compaction in the printing process is realized, the combination of the "brick" and the "mud" is more compact, the synergistic effect of the two materials is better, the loss of the brick-mud structure compressive strength is effectively reduced, and the strength and toughness of the composite material are improved.

Description

Technical Field

[0001] This invention relates to the field of 3D printing materials and printing technology, and in particular to an additive manufacturing method for a solid waste-based brick-mud structure composite material. Background Technology

[0002] Concrete 3D printing technology is a novel technology. As a new type of moldless concrete molding technology, it allows computer-aided design tools to be applied to the construction process. This technology has many advantages, such as fast production speed, economic efficiency, and relatively low cost. However, existing concrete 3D printing materials and components have good compressive strength but poor toughness and impact resistance, which need to be improved. Brick-mud biomimetic structures have high toughness and good impact resistance, so they can be used to improve these problems.

[0003] Brick-and-mortar biomimetic structures typically contain two or more different material phases, where one material (e.g., "brick") provides strength and rigidity, while the other material (e.g., "mortar") provides toughness and plasticity. Existing processes for fabricating brick-and-mortar biomimetic structures involve complex steps, such as ice template-freeze-drying and biomimetic mineralization methods. Some methods utilize laser cutting, where existing ceramic sheets are cut into brick shapes, resin materials are manually applied, and the treated ceramic sheets are then manually overlapped and pressed to form the structure. This allows for precise control of the brick shape and the fabrication of large-scale brick-and-mortar structural components. While these methods can produce "mortar-brick" structures with intricate structures, the processes are complex, cumbersome, and costly, making them unsuitable for large-scale industrial production. Furthermore, these methods are primarily used for ceramic-based brick-and-mortar structural materials and are not applicable to the construction field or building materials. Therefore, it is necessary to combine 3D printing technology with these methods to fabricate low-cost, high-performance brick-and-mortar structural composite materials for building materials. Summary of the Invention

[0004] The purpose of this invention is to provide an additive manufacturing method for solid waste-based brick-mud structure composite materials. This method utilizes 3D printing technology to combine additive manufacturing with laser subtractive manufacturing, thereby solving the problem of complex manufacturing processes in the prior art, which are difficult to meet the needs of large-scale industrial production. This method enables precise control of 3D printing and molding of alkali-activated solid waste material brick-mud structures, improves the synergistic effect between brick-mud structures, and makes the structure more compact.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] An additive manufacturing method for a solid waste-based brick-mud composite material, which utilizes alkali-activated solid waste material as brick and thermosetting furan resin as mud.

[0007] The alkali-activated solid waste material, by weight, comprises 80-85 parts granite powder, 27.4-30 parts slag, 5-8 parts silica fume, 1.5-3 parts fly ash, 0.41-0.43 parts basalt fiber with a length of 0.8-1.2 mm, 25-27 parts water, 3.0-3.5 parts sodium hydroxide, and 6.0-7.0 parts sodium silicate solution.

[0008] The granite powder is distributed in a particle size distribution with a weight ratio of 100-120 mesh: 200 mesh = 1:(1-1.5).

[0009] The preparation process of the composite material is as follows:

[0010] 1) Place granite powder, slag, silica fume, fly ash and basalt fiber in a mixing pot and stir evenly to obtain a uniformly mixed dry material; put the mixed dry material and water into the mixing pot and stir evenly to obtain a uniformly mixed wet material; quickly pour sodium hydroxide tablets into a beaker containing sodium silicate solution and stir evenly to obtain an alkali activator.

[0011] The alkaline activator and the mixed wet material are placed together in a mixing pot and stirred evenly to obtain the alkaline activated solid waste material;

[0012] 2) Printing is performed using 3D printing equipment, which is equipped with a baking lamp, a fiber laser, a scraper, and rollers. The distance between the baking lamp and the worktable is 35-45cm. After printing each layer of alkali-activated solid waste material, the scraper is used to spread the current layer evenly, and the fiber laser is used to cut the spread plane according to the set path. Except for the bottom layer, each cut completely penetrates the current layer, dividing the current layer into bricks. Then, the current layer is irradiated with a 1500-1600W baking lamp for 5-6 minutes to make the current layer harden rapidly and bond tightly.

[0013] Furan resin is extruded onto the alkali-activated solid waste material layer after being irradiated by a baking lamp, and then spread by a scraper. After spreading, it is irradiated by a 1500-1600W baking lamp for 4-5 minutes to form a furan resin material layer on the brick layer. When the resin solidifies to the point that it does not stick to the roller, the roller is started to roll the layer, so that the furan resin material layer and the alkali-activated solid waste material layer are organically and tightly bonded together.

[0014] The above process of alkali-activated solid waste material layer and furan resin material layer is repeated until the target height is reached to obtain brick-mortar structure composite material.

[0015] The slag powder has an activity grade of S105 and a density of not less than 1.3 g / cm³. 3 The CaO content is not less than 40%, and the SiO2 content is not less than 25%.

[0016] The silica fume has an SiO2 content of not less than 80%.

[0017] The sodium hydroxide is a solid tablet, analytical grade, with a content greater than 96% and a relative molecular mass of 40. The sodium silicate solution is type SP38, with a solid content of 35.5%, a Baume degree of 38.5, and a density of 1.366 kg / m³. 3 The pH value is 10.13 and the modulus is 3.26;

[0018] The fly ash powder has a particle size of 1250 mesh and a density of 2.3 g / cm³. 3 The SiO2 content is not less than 55%, and the Al2O3 content is not less than 28%.

[0019] The basalt fiber has a single filament diameter of 6.23 μm, a breaking diameter of 1937 MPa, an elastic modulus of 79 GPa, and a breaking elongation of 2.9.

[0020] Furthermore, the granite powder is made from granite ground from Laizhou, Shandong Province. The compressive strength of the granite ranges from 100MPa to 200MPa, and the particle size distribution of the granite powder is 100-120 mesh: 200 mesh = 1:1 by weight.

[0021] Furthermore, the heat lamp has a power of 1500W, a distance of 40cm from the workbench, and an irradiation time of 6 minutes for the brick layer and 5 minutes for the mud layer.

[0022] Furthermore, the thickness of the furan resin material layer is 0.2-0.5mm, the roller rolling depth is 0.1mm, and the rolling depth is the depth to which the roller penetrates into the paving layer; the thickness of the brick layer printing layer is 1mm.

[0023] Furthermore, the laser power of the fiber laser is 1000W, the laser energy during cutting is 45%, and the laser speed is 120mm / s.

[0024] This invention also protects a solid waste-based brick-mud structure composite material obtained by the above-described manufacturing method.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] This invention enables low-cost 3D printing preparation of alkali-activated solid waste material brick-mud structures, facilitating the application of brick-mud structures in the construction field.

[0027] This invention effectively avoids the gap defects caused by the connection of strips when forming solid surfaces using other printing methods (SLA, SLS, 3DP, FDM, etc.), and improves the forming efficiency and overall integrity compared to forming a plane with strips.

[0028] This invention involves rolling after each layer of "brick" and "mud" is laid. During the rolling process, the resin is semi-dry and does not stick to the roller. The rolling process achieves pressure compaction during printing, making the "brick" and "mud" bond more tightly. This results in better synergy between the two materials, effectively reducing the loss of compressive strength of the brick-mud structure and improving the strength and toughness of the composite material.

[0029] This invention enables free design of brick shapes through laser cutting. The laser is used to completely penetrate the printed layers that act as "bricks" along the brick-shaped path, allowing the resin material to bond the upper and lower layers more tightly through the through-joints between the bricks, thereby enhancing the performance of the printed structure. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the process of synergistic addition and subtraction of paving materials in this invention.

[0031] Figure 2 This is a schematic diagram of the structure of the 3D printing equipment of the present invention.

[0032] Figure 3 This is a schematic diagram of the brick type of a brick-mud structure according to an embodiment of the present invention.

[0033] Figure 4 This is a schematic diagram of the layered stacking of a brick-and-mortar structure according to an embodiment of the present invention.

[0034] The following are marked in the diagram: 1. Left material tank; 2. Right material tank; 3. Waste bin; 4. Scraper; 5. Roller; 6. Feed pipe; 7. Heat lamp; 8. Galvanometer; 9. Fiber laser; 10. Extruder head; 11. Workbench; 12. Machine casing; 13. Furan resin acting as "sludge"; 14. Alkali-activated solid waste material acting as "brick". Detailed Implementation

[0035] The present invention will now be further described with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention.

[0036] This invention relates to a solid waste-based brick-and-mortar structural composite material from the construction field. It comprises an alkali-activated solid waste material acting as the "brick" and a thermosetting furan resin acting as the "mortar." The alkali-activated solid waste material is prepared using the alkali activation principle and includes granite powder, slag, silica fume, fly ash, sodium silicate solution, sodium hydroxide, basalt fiber, and water. The brick-and-mortar structural composite material is prepared using a combined process of paving-type additive manufacturing and laser subtractive manufacturing. The specific process is as follows:

[0037] (1) The platform is lowered to fix the layer thickness. The alkali-activated solid waste material, which acts as a "brick", is placed into the left material tank and transported to the left extrusion head through the conveying pipe. The left extrusion head is fixed together with the scraper. As the scraper moves from left to right, the alkali-activated solid waste material is extruded onto the worktable. Then, when the extrusion head and scraper return to their original position on the left, the material is evenly spread on the entire working surface by the scraper. Excess waste is scraped into the waste bin. Since the first layer of material is not tightly bonded to the worktable, it is easy to be carried away when the lower layer of resin is spread after the brick shape is cut out. Therefore, no other operations are performed on the first layer.

[0038] (2) The workbench is lowered to fix the layer thickness, and the alkali-activated solid waste material is extruded onto the workbench and spread evenly with a scraper. Then, a fiber laser is used to cut the plane according to the set path. By adjusting the laser power and laser speed, the layer is completely penetrated without cutting to the lower layer, and it is divided into pieces of "bricks". After that, the "bricks" are irradiated by a heat lamp, so that the "bricks" and the first layer of slurry harden quickly and bond tightly, which plays a fixing role in the "bricks" and facilitates the spreading of the lower layer of resin.

[0039] (3) The workbench is lowered to fix the layer thickness. The furan resin is put into the material tank on the right side and transported to the extrusion head on the right side through the conveying pipe. The extrusion head on the right side is fixed together with the scraper and roller. The roller can move up and down. During the spreading process, the roller rises to avoid hitting the material on the platform and does not affect the spreading. The spreading process is the same as spreading alkali-activated solid waste material. As the scraper moves to the left, the resin material is extruded onto the workbench. When the extrusion head and scraper return to the original position on the right side, the material is evenly spread on the entire working surface by the scraper and the excess waste is scraped into the waste bin. Then, the resin is heated and solidified by the heat lamp. When it solidifies to a certain extent, the roller is started to roll the layer. At this time, the right roller moves to the left. When it reaches the workbench, the roller drops to roll the material on the platform, so that the furan resin material layer and the alkali-activated solid waste material layer are more tightly bonded, improving the overall structure and achieving reinforcement and toughening.

[0040] (4) Then continue to repeat steps (2) and (3) until printing is completed, and obtain brick and mud structure specimens. In the subsequent repetition of step (2), since the bonding between the upper and lower layers of the alkali-activated solid waste material and the resin material is good, it can avoid the lower layer constraint after the "brick" is cut out, which will cause the "brick" to be carried away when the resin material is laid. Each "brick" layer can be laser cut.

[0041] Granite has a Mohs hardness of around 6 and a density of 2.63 g / cm³. 3 Up to 2.75 g / cm 3 Between 100-300 MPa, the compressive strength is 10-300 MPa, and the flexural strength is 10-30 MPa.

[0042] The slag powder has an activity grade of S105 and a density of not less than 1.3 g / cm³. 3 The CaO content is not less than 40%, and the SiO2 content is not less than 25%.

[0043] The silica fume powder shall have an SiO2 content of not less than 80%.

[0044] The fly ash powder should have a particle size of 1250 mesh and a density of 2.3 g / cm³. 3 The SiO2 content should be no less than 55%, and the Al2O3 content should be no less than 28%.

[0045] The sodium hydroxide is a solid powder, analytical grade, with a content greater than 96% and a relative molecular mass of 40. The sodium silicate solution is designated SP38, with a solid content of 35.5%, a Baume degree of 38.5, and a density of 1.366 kg / m³. 3 The pH value is 10.13 and the modulus is 3.26, ensuring the full solubility and reaction of sodium hydroxide and sodium silicate solution.

[0046] The basalt fiber has a single filament diameter of 6.23 μm, a breaking diameter of 1937 MPa, an elastic modulus of 79 GPa, and a breaking elongation of 2.9. The preferred basalt fiber length is 1 mm to prevent excessive fiber length from affecting paving and to prevent alkali-activated solid waste materials from drying and cracking after being exposed to a baking lamp.

[0047] This invention uses a fiber laser for brick-shaped cutting, with an accuracy controllable to 0.01 mm.

[0048] Preferably, the heat lamp used has a power of 1500W, is 40cm away from the workbench, and is irradiated for 6 minutes for the "brick" layer and 5 minutes for the "mud" layer.

[0049] Preferably, the thickness of the "brick" layer printing layer is 1mm.

[0050] Preferably, the laser power is 1000W, the laser energy used during cutting is 45%, and the laser speed is 120mm / s.

[0051] Preferably, the thickness of the furan resin material layer is 0.2-0.5 mm, and the roller rolling depth is 0.1 mm.

[0052] Example 1:

[0053] The solid waste-based brick-mud structure composite material of this embodiment includes alkali-activated solid waste material 14, which acts as the "brick", and thermosetting furan resin 13, which acts as the "mud". The alkali-activated solid waste material, by weight, consists of 80 parts granite powder, 27.4 parts slag, 5.2 parts silica fume, 2 parts fly ash, 0.41 parts basalt fiber with a length of 1 mm, 26.3 parts water, 3.5 parts sodium hydroxide, and 6.8 parts sodium silicate solution.

[0054] In this embodiment, the granite powder is made from granite ground from Laizhou, Shandong Province. Its compressive strength ranges from 100MPa to 200MPa, and it has good impact resistance. The particle size distribution of the granite powder is 100-120 mesh: 200 mesh = 1:1 by weight.

[0055] The preparation process of the composite material is as follows:

[0056] I. The preparation process of alkali-activated solid waste materials that act as "bricks" is as follows:

[0057] (1) Place granite powder, slag, silica fume, fly ash and basalt fiber in a mixing pot according to the specified amount and stir for 3 minutes to obtain a uniformly mixed dry material.

[0058] (2) Put the obtained dry material and water into a mixing pot and stir. First, stir in the forward direction for 5 minutes, then stir in the reverse direction for 5 minutes to obtain a uniformly mixed wet material.

[0059] (3) Quickly pour sodium hydroxide tablets into a beaker containing sodium silicate solution and stir the mixture evenly with a stirring rod. Since a large amount of heat will be released when mixing the two materials, place the mixture in a refrigerator to cool to room temperature, and finally obtain the alkali activator.

[0060] (4) Put the prepared alkali activator and the mixed wet material into a mixing pot and stir. First, stir in the forward direction for 5 minutes, then stir in the reverse direction for 5 minutes to obtain a uniformly stirred "brick" alkali activated solid waste material.

[0061] II. Synergistic Process of Paving-type Additive Manufacturing and Laser Subtractive Manufacturing

[0062] Printing is performed using 3D printing equipment, the 3D printing equipment (see...) Figure 2The machine is equipped with a heating lamp 7, a fiber laser 9, a scraper 4, and a roller 5. The heating lamp is 35-45cm away from the worktable 11. A galvanometer 8 is set directly above the worktable 11, and the output of the fiber laser 9 acts on the galvanometer 8. Two rows of heating lamps 7 are symmetrically arranged on both sides below the galvanometer 8, and the heating lamps 7 are located above the worktable. The worktable can be raised and lowered. A waste bin 3 is set on each side of the worktable 11. A left material tank 1 and a right material tank 2 are set on the outside of the waste bins. The left material tank 1 is used to hold alkali-activated solid waste materials, and the right material tank is used to hold furan resin. Scrapers 4 are set on the left and right sides above the worktable. The scrapers 4 are installed synchronously with the extruder 10. The extruder 10 is connected to the corresponding material tank through the feed pipe 6. A roller 5 is also connected to the extruder on the side where the furan resin is located. The roller 5 can be raised and lowered independently. The upper end of the heating lamp is fixed inside the machine housing 12.

[0063] (1) The workbench is lowered by 1mm. The alkali-activated solid waste material, which acts as a "brick", is placed into the left material tank. The material is sent to the extrusion head 10 through the conveying pipe 6. The extrusion head is fixed together with the scraper. The material is extruded onto the workbench while moving to the right with the scraper. Then, when the extrusion head and scraper return to their original position on the left, the material is evenly spread on the entire working surface by the scraper. No other operations are performed on the first layer.

[0064] (2) Lower the worktable by 1 mm and continue to extrude the alkali-activated solid waste material onto the worktable. Spread it evenly using a scraper. Set the parameters of the 1000W fiber laser, adjusting the laser energy to 45% and the laser speed to 120 mm / s. Use the fiber laser to cut the plane according to the set path. The cutting path is shown in [reference needed]. Figure 3 Then, a 1500W heat lamp was used to irradiate the printing platform at a height of 40cm for 6 minutes, which made the "brick" layer harden and bond tightly with the first layer of slurry quickly, and played a fixing role in the "brick" layer to facilitate the spreading of the next layer of resin.

[0065] (3) The worktable is lowered by 0.2 mm, and the furan resin is placed into the material tank on the other side and extruded onto the worktable. It is then spread evenly by a scraper. Then, a 1500W heat lamp is used to irradiate it at a height of 40 cm above the printing platform for 5 minutes to allow the furan resin to solidify. When it has solidified to a certain extent, the right roller is started to roll the layer. The rolling depth of the roller at the worktable is adjustable. In this embodiment, the rolling depth is 0.1 mm.

[0066] (4) Then continue to repeat steps (2) and (3) until printing is completed, and obtain the brick and mud structure specimen.

[0067] The printed specimens were cut into 40×40×160mm pieces for flexural strength testing. The 28-day flexural strength was 16.1MPa, while the 28-day flexural strength of the specimen printed from the soda ash activated solid waste material in this embodiment was 10.2MPa. Therefore, the effect was significantly improved, and the toughness of the brick-mud structure printed specimens was significantly enhanced.

[0068] The printed specimen was cut into 40×40mm specimens for compressive strength testing. The 28-day compressive strength was 43.3MPa. In contrast, the 28-day compressive strength of the specimen printed from the soda ash activated solid waste material in this embodiment was 48MPa. This shows that the compressive strength of the brick-mud structure specimen in this embodiment has less loss and almost no loss.

[0069] Example 2:

[0070] This embodiment describes a synergistic process combining paving-type additive manufacturing and laser subtractive manufacturing, which includes the following steps:

[0071] (1) Lower the workbench by 1mm, put the alkali-activated solid waste material, which acts as a "brick", into the material tank, squeeze it onto the workbench, and spread it evenly on the entire working surface with a scraper. No other operations are performed on the first layer.

[0072] (2) Lower the worktable by 1mm and continue to extrude the alkali-activated solid waste material onto the worktable. Spread it evenly with a scraper. Set the parameters of the 1000W fiber laser, adjusting the laser energy to 45% and the laser speed to 120mm / s. Use the fiber laser to cut the plane according to the set path. Then, use a 1500W heat lamp to irradiate it at a height of 40cm above the printing platform for 6 minutes. This allows the "brick" layer to harden quickly and bond tightly with the first layer of slurry, fixing the "brick" layer and facilitating the spreading of the next layer of resin.

[0073] (3) Lower the worktable by 0.4mm, put the furan resin into the material tank on the other side, extrude it onto the worktable, spread it evenly with a scraper, and then use a 1500W heat lamp to irradiate it at a height of 40cm above the printing platform for 5 minutes to make the furan resin solidify. When it solidifies to a certain extent, start the roller to roll the layer, with a rolling depth of 0.1mm.

[0074] (4) Then continue to repeat steps (2) and (3) until printing is completed, and obtain the brick and mud structure specimen.

[0075] In this embodiment, by changing the thickness of the furan resin material layer (before rolling) from 0.2 mm to 0.4 mm, the proportion of resin in the component was increased. The printed specimen was cut into 40×40×160 mm specimens for flexural strength testing. The 28-day flexural strength was 18.4 MPa (the flexural strength of soda ash activated solid waste material was 10.2 MPa), showing a significant improvement. The toughness of the brick-mud structure printed specimen was significantly enhanced.

[0076] The printed specimen was cut into 40×40mm specimens for compressive strength testing. The 28-day compressive strength was above 40MPa. This invention can maintain high compressive strength while significantly enhancing flexural strength.

[0077] Any aspects not covered in this invention are applicable to existing technologies.

Claims

1. An additive manufacturing method for a solid waste-based brick-mortar structural composite material, characterized in that: Alkali-activated solid waste materials are used as bricks, and thermosetting furan resin is used as mud. The alkali-activated solid waste material, by weight, comprises 80-85 parts granite powder, 27.4-30 parts slag, 5-8 parts silica fume, 1.5-3 parts fly ash, 0.41-0.43 parts basalt fiber with a length of 0.8-1.2 mm, 25-27 parts water, 3.0-3.5 parts sodium hydroxide, and 6.0-7.0 parts sodium silicate solution. The granite powder is distributed in a particle size distribution with a weight ratio of 100-120 mesh: 200 mesh = 1:(1-1.5). The preparation process of the composite material is as follows: 1) Place granite powder, slag, silica fume, fly ash and basalt fiber in a mixing pot and stir evenly to obtain a uniformly mixed dry material; put the mixed dry material and water into the mixing pot and stir evenly to obtain a uniformly mixed wet material; quickly pour sodium hydroxide tablets into a beaker containing sodium silicate solution and stir evenly to obtain an alkali activator. The alkaline activator and the mixed wet material are placed together in a mixing pot and stirred evenly to obtain the alkaline activated solid waste material; 2) Printing is performed using 3D printing equipment, which is equipped with a baking lamp, a fiber laser, a scraper, and rollers. The distance between the baking lamp and the worktable is 35-45cm. After printing each layer of alkali-activated solid waste material, the scraper is used to spread the current layer evenly, and the fiber laser is used to cut the spread plane according to the set path. Except for the bottom layer, each cut completely penetrates the current layer, dividing the current layer into bricks. Then, the current layer is irradiated with a 1500-1600W baking lamp for 5-6 minutes to make the current layer harden rapidly and bond tightly. Furan resin is extruded onto the alkali-activated solid waste material layer after being irradiated by a baking lamp, and then spread by a scraper. After spreading, it is irradiated by a 1500-1600W baking lamp for 4-5 minutes to form a furan resin material layer on the brick layer. When the resin solidifies to the point that it does not stick to the roller, the roller is started to roll the layer, so that the furan resin material layer and the alkali-activated solid waste material layer are organically and tightly bonded together. The above process of alkali-activated solid waste material layer and furan resin material layer is repeated until the target height is reached to obtain brick-mortar structure composite material.

2. The manufacturing method according to claim 1, characterized in that: The slag powder has an activity grade of S105, a CaO content of not less than 40%, and a SiO2 content of not less than 25%. The silica fume has an SiO2 content of not less than 80%. The sodium hydroxide is a solid tablet, analytical grade, and the sodium silicate solution is SP38, with a solid content of 35.5%, a Baume degree of 38.5, a pH value of 10.13, and a modulus of 3.

26. The fly ash powder has a particle size of 1250 mesh and a density of 2.3 g / cm³. 3 The SiO2 content is not less than 55%, and the Al2O3 content is not less than 28%. The basalt fiber has a single filament diameter of 6.23 μm, a breaking diameter of 1937 MPa, an elastic modulus of 79 GPa, and a breaking elongation of 2.

9.

3. The manufacturing method according to claim 1, characterized in that: The granite powder is made from granite ground from Laizhou, Shandong Province. The compressive strength of the granite ranges from 100MPa to 200MPa, and the particle size distribution of the granite powder is 100-120 mesh: 200 mesh = 1:1 by weight.

4. The manufacturing method according to claim 1, characterized in that: The heat lamp has a power of 1500W, is 40cm away from the workbench, and is used for irradiation for 6 minutes on the brick layer and 5 minutes on the mud layer.

5. The manufacturing method according to claim 1, characterized in that: The thickness of the furan resin material layer is 0.2-0.5mm, the roller rolling depth is 0.1mm, and the rolling depth is the depth to which the roller penetrates into the paving layer; the thickness of the brick layer printing layer is 1mm.

6. The manufacturing method according to claim 1, characterized in that: The fiber laser has a laser power of 1000W, a laser energy of 45% during cutting, and a laser speed of 120mm / s.

7. A solid waste-based brick-and-mortar structural composite material obtained by any of the manufacturing methods described in claims 1-6.

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