Sound absorption and noise reduction concrete and processing method thereof

Abstract

The invention relates to the field of concrete, in particular to sound absorption and noise reduction concrete and a processing method thereof. A sound absorption and noise reduction concrete comprises a plurality of concrete layers, the plurality of concrete layers are of porous structures, the pore diameters of bubbles in the plurality of concrete layers are sequentially reduced from the upper layer to the lower layer, a foam block is embedded in the middle of the concrete layer located on the lowermost side, and a plurality of vertical holes are vertically formed in the concrete layers. A linear groove is formed in the upper side of each concrete layer, and the concrete layer on the upper layer of each concrete layer is inserted into the multiple linear grooves in the concrete layer on the lower layer of each concrete layer. The machining method comprises the following steps that S1, the multiple concrete layers are poured in a layered mode, so that the multiple concrete layers are stacked; s2, when the concrete layer is poured, a plurality of vertical holes are machined in the concrete layer; and S3, when the concrete layers are poured, a plurality of linear grooves are machined in the upper sides of the concrete layers, so that the concrete layer on the upper layer of each concrete layer is inserted into the linear grooves in the concrete layer on the lower layer of each concrete layer.

Description

Technical Field

[0001] The present invention relates to the field of concrete, and more particularly to sound-absorbing and noise-reducing concrete and a processing method thereof. Background Art

[0002] With the acceleration of urbanization and the rapid development of transportation and industry, environmental noise pollution has become a significant issue affecting residents' quality of life and human health. According to relevant research, long-term exposure to noise levels exceeding 55 decibels significantly increases the risk of cardiovascular disease, sleep disorders, and psychological anxiety. Therefore, the development of highly effective sound-absorbing and noise-reducing materials has become a research hotspot in the field of architectural acoustics. Traditional sound-absorbing concrete achieves sound absorption through the introduction of pores or lightweight aggregates, but its pore structure is often single-scale or disordered, failing to form a gradient pore structure. This deficiency results in a lack of targeted absorption of sound waves: small pores strongly block high-frequency sound waves but have difficulty capturing low-frequency sound waves; while large pores can accommodate low-frequency sound waves and generate vibration dissipation, they have a high reflectivity for high-frequency sound waves. As a result, existing sound-absorbing concrete often only functions within a limited frequency range and cannot effectively cover broadband sound waves. Summary of the Invention

[0003] To overcome the deficiencies of the prior art, the present invention provides a sound-absorbing and noise-reducing concrete and a processing method thereof, which has the beneficial effect of forming a gradient pore structure so that sound waves of different frequencies are absorbed specifically in each layer, thereby broadening the noise reduction range.

[0004] A sound-absorbing and noise-reducing concrete processing device comprises a trough box, wherein a groove is provided on the inner bottom surface of the trough box, a pressing plate is provided on the upper side of the trough box, and a plurality of ridges are provided on the lower side of the pressing plate from left to right.

[0005] A separation seam is provided in the middle of the trough box, which divides the trough box into two parts, a left part and a right part; convex seats are fixed on the left and right ends of the rear side of the trough box, and the two convex seats are respectively slidably connected to the left and right ends of the cross bar.

[0006] Two movable baffles are provided on the front side of the trough box, and fixed sleeves are fixed on the left and right sides of the trough box. L-shaped rods are slidably connected to the two fixed sleeves. The front of each L-shaped rod is fixed on the two baffles respectively, and each fixed sleeve is threadedly connected with a fastening screw, which presses on the corresponding L-shaped rod.

[0007] A middle frame is fixed in the middle of the cross bar, a cross seat is fixed on the upper part of the middle frame, round rods are fixed on the left and right ends of the upper side of the pressure plate, the two round rods are vertically slidably connected to the cross seat, and compression springs are sleeved on the two round rods, which are located between the cross seat and the pressure plate.

[0008] A top plate is fixed on the upper portion of the round rod on the left side, a second telescopic rod is fixed on the horizontal seat, and a movable end of the second telescopic rod is pressed against the lower side of the top plate.

[0009] A retaining ring is vertically slidably connected to the round rod on the right side, and a fastening screw 2 is threadedly connected to the retaining ring, and the fastening screw 2 is pressed on the round rod.

[0010] The left and right ends of the cross bar are respectively fixed to the upper ends of the two brackets, the lifting plate is vertically slidably connected to the two brackets, a telescopic rod 1 is fixed on the middle frame, the movable end of the telescopic rod 1 is fixed to the lifting plate, a plurality of square rods are provided on the upper part of the lifting plate, and a plurality of square holes are provided at the bottom of the trough box, and the plurality of square rods can be inserted into the plurality of square holes respectively.

[0011] A motor is fixed on one end of the crossbar, a screw is fixed on the output shaft of the motor, the left and right parts of the screw have opposite screw thread directions, and the screw is matched with two convex seats through the screw thread.

[0012] A sound-absorbing and noise-reducing concrete comprises multiple concrete layers, each of which is a porous structure. The pore diameters of bubbles inside the multiple concrete layers decrease from the upper layer to the lower layer. A foam block is embedded in the middle of the concrete layer on the lower side. A plurality of vertical holes are provided on the concrete layer. A linear groove is provided on the upper side of each concrete layer. The concrete layer on the upper side of each concrete layer is inserted into the plurality of linear grooves on the lower concrete layer.

[0013] A method for processing sound-absorbing and noise-reducing concrete, comprising the following steps:

[0014] S1: pouring multiple concrete layers in layers so that multiple concrete layers are stacked;

[0015] S2: When pouring the concrete layer, multiple vertical holes are machined on the concrete layer;

[0016] S3: When pouring the concrete layer, a plurality of linear grooves are machined on the upper side of the concrete layer so that the upper concrete layer of each concrete layer is inserted into the plurality of linear grooves on the lower concrete layer;

[0017] S4: adjusting the amount of the foaming agent so that the pore size of the bubbles inside the multiple concrete layers decreases from the upper layer to the lower layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] Figure 1 A schematic diagram of the structure of a sound-absorbing and noise-reducing concrete Figure 1 ;

[0020] Figure 2 A schematic diagram of the structure of a sound-absorbing and noise-reducing concrete Figure 2 ;

[0021] Figure 3 A structural diagram of a sound-absorbing and noise-reducing concrete processing device Figure 1 ;

[0022] Figure 4 A structural diagram of a sound-absorbing and noise-reducing concrete processing device Figure 2 ;

[0023] Figure 5 A structural diagram of a sound-absorbing and noise-reducing concrete processing device Figure 3 ;

[0024] Figure 6 A structural diagram of a sound-absorbing and noise-reducing concrete processing device Figure 4 ;

[0025] Figure 7 Schematic diagram of the trough box structure Figure 1 ;

[0026] Figure 8 Schematic diagram of the trough box structure Figure 2 ;

[0027] Figure 9 Schematic diagram of the crossbar structure Figure 1 ;

[0028] Figure 10 Schematic diagram of the crossbar structure Figure 2 ;

[0029] Figure 11 Schematic diagram of the pressure plate structure Figure 1 ;

[0030] Figure 12 Schematic diagram of the pressure plate structure Figure 2 ;

[0031] In the figure: slot box 101; fastening screw 102; fixing sleeve 103; baffle 104; groove 105; separation slit 106; square hole 107; L-shaped rod 108; protrusion 109;

[0032] Crossbar 201; screw 202; telescopic rod 203; middle frame 204; motor 205; square rod 206; lifting plate 207; bracket 208;

[0033] Pressing plate 301; ridge 302; fastening screw 303; retaining ring 304; horizontal seat 305; telescopic rod 306; round rod 307; top plate 308;

[0034] Concrete layer 401; vertical hole 402; linear groove 403; foam block 404. DETAILED DESCRIPTION

[0035] like Figure 7-8 and 11-12;

[0036] Since the sound-absorbing and noise-reducing concrete processing device includes a trough box 101, a groove 105 is provided on the inner bottom surface of the trough box 101, a pressing plate 301 is provided on the upper side of the trough box 101, and a plurality of ridges 302 are provided on the lower side of the pressing plate 301 from left to right; during pouring, the foam block 404 can be placed in the groove 105, and then concrete is poured into the trough box 101, so that the foam block 404 is embedded in the bottom concrete layer 401, and the sound-absorbing and noise-reducing effect of the bottom concrete layer 401 is improved by the foam block 404, and then the pressing plate 301 is used to press the concrete in the trough box 101 to make the concrete layer The upper side of 401 is flattened, and multiple ridges 302 form multiple straight grooves 403 on the upper side of the concrete layer 401. After waiting for this concrete layer 401 to solidify, the next concrete layer 401 is poured. The upper concrete layer 401 can be inserted with multiple straight grooves 403, thereby improving the bonding between the multiple concrete layers 401 and preventing the multiple concrete layers 401 from separating. The amount of foaming agent is adjusted so that the pore size of the bubbles inside the multiple concrete layers 401 decreases from the upper layer to the lower layer, thereby forming a gradient pore structure, so that sound waves of different frequencies are targetedly absorbed in each layer, and the noise reduction range is widened.

[0037] like Figure 7-10 As shown;

[0038] Since a separation seam 106 is provided in the middle of the trough box 101, the separation seam 106 divides the trough box 101 into two left and right parts, and protrusions 109 are fixed to the left and right ends of the rear side of the trough box 101, and the two protrusions 109 are respectively slidably connected to the left and right ends of the cross bar 201; the separation seam 106 in the middle of the trough box 101 divides it into two left and right parts. After the concrete layer 401 is formed in the trough box 101, the left and right parts of the trough box 101 can be separated by making the two protrusions 109 slide relative to each other along the cross bar 201, thereby avoiding damage to the formed concrete layer 401 due to adhesion of concrete to the inner wall of the trough box, and facilitating the smooth removal of concrete products.

[0039] like Figure 7-8 As shown;

[0040] Since two movable baffles 104 are provided on the front side of the trough box 101, fixing sleeves 103 are fixed on the left and right sides of the trough box 101, and L-shaped rods 108 are slidably connected to the two fixing sleeves 103. The front of each L-shaped rod 108 is fixed to the two baffles 104 respectively, and each fixing sleeve 103 is threadedly connected with a fastening screw 102, and the fastening screw 102 is pressed on the corresponding L-shaped rod 108; before pouring concrete, the sliding L-shaped rod 108 can drive the baffle 104 to move, and adjust the baffle 104 to a position that closes the front side of the trough box 101, and then tighten the fastening screw 102 to fix the L-shaped rod 108 on the fixing sleeve 103, so that the baffle 104 can be stably blocked at the front side of the trough box 101, preventing concrete from overflowing from the front side of the trough box during pouring, thereby ensuring the forming size accuracy of the concrete layer 401. When the concrete layer 401 is solidified, the fastening screw 102 is loosened, and the L-shaped rod 108 is slid to remove the baffle 104, so that the concrete layer 401 can be taken out from the front side of the trough box 101. The operation is flexible and convenient.

[0041] like Figure 9-12 As shown;

[0042] Because the middle frame 204 is fixed in the middle of the crossbar 201, and the cross seat 305 is fixed on the upper part of the middle frame 204, round rods 307 are fixed to the left and right ends of the upper side of the pressure plate 301. The two round rods 307 are vertically slidably connected to the cross seat 305. The two round rods 307 are sleeved with compression springs, which are located between the cross seat 305 and the pressure plate 301. The middle frame 204 in the middle of the crossbar 201 provides a stable support for the cross seat 305. The vertical sliding cooperation between the cross seat 305 and the round rods 307 provides a guide for the up and down movement of the pressure plate 301, ensuring that the pressure plate 301 remains stable during the concrete pressing process and avoiding uneven force on the surface of the concrete layer 401 due to deviation. The compression springs on the round rods 307 apply downward pressure to the pressure plate 301, and the elastic force generated by the compression springs can make the pressure of the pressure plate 301 on the concrete more uniform, reducing the damage to the concrete structure caused by local excessive extrusion.

[0043] like Figure 11-12 As shown;

[0044] Since the top plate 308 is fixed on the upper part of the round rod 307 on the left, and the telescopic rod 2 306 is fixed on the horizontal seat 305, the movable end of the telescopic rod 2 306 is pressed against the lower side of the top plate 308. The extension of the telescopic rod 2 306 can drive the top plate 308 to move upward, and then drive the two round rods 307 and the pressure plate 301 to move upward, thereby lifting the pressure plate 301 to facilitate the placement of the next layer of concrete.

[0045] like Figure 11-12 As shown;

[0046] Since the round rod 307 on the right side is vertically slidably connected with a retaining ring 304, the retaining ring 304 is threadedly connected with a fastening screw 203, and the fastening screw 203 is pressed on the round rod 307; the retaining ring 304 can slide vertically on the round rod 307 on the right side to adjust its position, and the retaining ring 304 can be fixed using the fastening screw 203. The retaining ring 304 can limit the maximum distance that the round rod 307 slides downward relative to the cross seat 305, thereby controlling the maximum distance that the pressure plate 301 slides downward. When the concrete layer 401 in the trough box 101 gradually increases, the position of the retaining ring 304 can be adjusted to control the maximum distance that the pressure plate 301 slides downward to prevent the pressure plate 301 from moving downward too far and squeezing the concrete layer 401 that has been poured.

[0047] like Figure 7-10 As shown;

[0048] Since the left and right ends of the cross bar 201 are respectively fixed to the upper ends of the two brackets 208, the lifting plate 207 is vertically slidably connected to the two brackets 208, a telescopic rod 203 is fixed on the middle frame 204, and the movable end of the telescopic rod 203 is fixed to the lifting plate 207. A plurality of square rods 206 are provided on the upper part of the lifting plate 207, and a plurality of square holes 107 are provided at the bottom of the trough box 101. The plurality of square rods 206 can be inserted into the plurality of square holes 107 respectively; the two brackets 208 provide stable support for the entire device, and the lifting plate 207 can slide vertically along the brackets 208. When vertical holes 402 need to be machined in the concrete layer 401, the telescopic rod 1 203 extends, pushing the lifting plate 207 upward. This allows the multiple square rods 206 on the lifting plate 207 to pass through the square holes 107 at the bottom of the trough box 101 and into the unset concrete, forming vertical holes. When the concrete is initially formed, the telescopic rod 1 203 shortens, driving the lifting plate 207 downward, and the square rods 206 are extracted from the concrete, ultimately leaving multiple vertical holes 402 in the concrete layer 401. These vertical holes 402 serve as channels for sound waves to propagate deeply into the concrete, where they interact fully with the pore structure of each layer, enhancing the sound absorption and noise reduction effect.

[0049] like Figure 7-10 As shown;

[0050] A motor 205 is fixed to one end of the crossbar 201, and a screw 202 is fixed to the output shaft of the motor 205. The left and right parts of the screw 202 have opposite threads, and the screw 202 engages with the two bosses 109 through the threads. When the motor 205 is turned on, it drives the screw 202 to rotate. Because the left and right parts of the screw 202 have opposite threads and are respectively threadedly connected to the two bosses 109, the rotation of the screw 202 is converted into relative movement of the two bosses 109 along the crossbar 201. When the two bosses 109 approach each other, the left and right parts of the trough box 101 close, forming a complete pouring space. When the two bosses 109 move away from each other, the left and right parts of the trough box 101 separate along the separation seam 106, facilitating the removal of the formed concrete layer 401. By controlling the forward and reverse rotation of the motor 205, the opening and closing of the trough box 101 can be automated, improving processing efficiency.

[0051] like Figure 1-2 As shown;

[0052] A sound-absorbing and noise-reducing concrete comprises a plurality of concrete layers 401, wherein the plurality of concrete layers 401 are porous structures, and the pore size of bubbles inside the plurality of concrete layers 401 decreases from the upper layer to the lower layer. A foam block 404 is embedded in the middle of the concrete layer 401 located at the lower side, and a plurality of vertical holes 402 are provided on the concrete layer 401. A linear groove 403 is provided on the upper side of each concrete layer 401, and the concrete layer 401 on the upper layer of each concrete layer 401 is inserted into the plurality of linear grooves 403 on the lower concrete layer 401. The plurality of concrete layers 401 adopt a porous structure and the pore size of bubbles decreases from top to bottom, forming a gradient pore structure. This structure enables sound waves of different frequencies to be absorbed in a targeted manner in each layer. The large-aperture pores in the upper layer mainly absorb high-frequency sound waves, while the small-aperture pores in the lower layer have a better absorption effect on medium-frequency and low-frequency sound waves, thereby greatly broadening the sound absorption range. The foam block 404 embedded in the middle of the bottommost concrete layer 401 leverages its inherent porous properties to further enhance its absorption and barrier properties against low-frequency sound waves. Vertical holes 402 in the concrete layer 401 guide sound waves into the concrete, increasing the contact area and duration between the sound waves and the pores, thereby improving sound absorption efficiency. Each upper layer of concrete layer 401 is inserted into the linear grooves 403 of the lower layer. This connection not only increases the contact area between layers, allowing sound waves to undergo multiple reflections and scattering as they propagate between them, reducing sound wave penetration, but also enhances the overall stability of the multi-layer structure, preventing interlayer separation from impacting sound absorption.

[0053] A method for processing sound-absorbing and noise-reducing concrete, comprising the following steps:

[0054] S1: pouring multiple concrete layers 401 in layers, so that the multiple concrete layers 401 are stacked;

[0055] S2: When pouring the concrete layer 401, a plurality of vertical holes 402 are machined on the concrete layer 401;

[0056] S3: When pouring the concrete layer 401 , a plurality of linear grooves 403 are machined on the upper side of the concrete layer 401 so that the upper concrete layer 401 of each concrete layer 401 is inserted into the plurality of linear grooves 403 on the lower concrete layer 401 ;

[0057] S4: Adjust the amount of the foaming agent so that the pore size of the bubbles inside the multiple concrete layers 401 decreases from the upper layer to the lower layer.

Claims

1. A sound-absorbing and noise-reducing concrete processing device, comprising a trough box (101), characterized in that: A groove (105) is provided on the inner bottom surface of the trough box (101), a pressing plate (301) is provided on the upper side of the trough box (101), and a plurality of ridges (302) are provided on the lower side of the pressing plate (301) from left to right.

2. The sound-absorbing and noise-reducing concrete processing device according to claim 1, characterized in that: A separation seam (106) is provided in the middle of the trough box (101), and the separation seam (106) divides the trough box (101) into two parts, left and right. Both left and right ends of the rear side of the trough box (101) are fixed with convex seats (109), and the two convex seats (109) are respectively slidably connected to the left and right ends of the cross bar (201).

3. The sound-absorbing and noise-reducing concrete processing device according to claim 2, characterized in that: The front side of the trough box (101) is provided with two movable baffles (104), and the left and right sides of the trough box (101) are fixed with fixed sleeves (103), and the two fixed sleeves (103) are slidably connected with L-shaped rods (108), and the front part of each L-shaped rod (108) is fixed on the two baffles (104) respectively, and each fixed sleeve (103) is connected with a fastening screw (102) through a thread, and the fastening screw (102) is pressed on the corresponding L-shaped rod (108).

4. The sound-absorbing and noise-reducing concrete processing device according to claim 3, characterized in that: A middle frame (204) is fixed to the middle of the cross bar (201), a cross seat (305) is fixed to the upper part of the middle frame (204), and round rods (307) are fixed to the left and right ends of the upper side of the pressure plate (301). The two round rods (307) are vertically slidably connected to the cross seat (305), and the two round rods (307) are sleeved with compression springs, which are located between the cross seat (305) and the pressure plate (301).

5. The sound-absorbing and noise-reducing concrete processing device according to claim 4, characterized in that: A top plate (308) is fixed to the upper portion of the round rod (307) on the left side, and a second telescopic rod (306) is fixed to the horizontal seat (305), with the movable end of the second telescopic rod (306) resting on the lower side of the top plate (308).

6. The sound-absorbing and noise-reducing concrete processing device according to claim 5, characterized in that: A retaining ring (304) is vertically slidably connected to the round rod (307) on the right side, and a second fastening screw (303) is threadedly connected to the retaining ring (304), and the second fastening screw (303) is pressed on the round rod (307).

7. The sound-absorbing and noise-reducing concrete processing device according to claim 6, characterized in that: The left and right ends of the cross bar (201) are respectively fixed to the upper ends of the two brackets (208); the lifting plate (207) is vertically slidably connected to the two brackets (208); a telescopic rod (203) is fixed on the middle frame (204); the movable end of the telescopic rod (203) is fixed to the lifting plate (207); a plurality of square rods (206) are provided on the upper part of the lifting plate (207); a plurality of square holes (107) are provided at the bottom of the trough box (101); and the plurality of square rods (206) can be respectively inserted into the plurality of square holes (107).

8. The sound-absorbing and noise-reducing concrete processing device according to claim 7, characterized in that: A motor (205) is fixed to one end of the crossbar (201), a screw (202) is fixed to the output shaft of the motor (205), the left and right parts of the screw (202) have opposite screw thread directions, and the screw (202) is matched with the two convex seats (109) through the screw thread.

9. A sound-absorbing and noise-reducing concrete, characterized in that: The invention comprises a plurality of concrete layers (401), wherein the plurality of concrete layers (401) are porous structures, wherein the pore diameters of bubbles inside the plurality of concrete layers (401) decrease from the upper layer to the lower layer, wherein a foam block (404) is embedded in the middle of the concrete layer (401) located at the lower side, wherein a plurality of vertical holes (402) are arranged on the concrete layer (401), wherein a linear groove (403) is arranged on the upper side of each concrete layer (401), and wherein the concrete layer (401) on the upper side of each concrete layer (401) is inserted into the plurality of linear grooves (403) on the lower concrete layer (401).

10. A method for processing sound-absorbing and noise-reducing concrete, characterized in that: The following steps are involved: S1: pouring multiple concrete layers (401) in layers, so that the multiple concrete layers (401) are stacked; S2: When pouring the concrete layer (401), a plurality of vertical holes (402) are machined on the concrete layer (401); S3: When pouring the concrete layer (401), a plurality of linear grooves (403) are machined on the upper side of the concrete layer (401), so that the upper concrete layer (401) of each concrete layer (401) is inserted into the plurality of linear grooves (403) on the lower concrete layer (401); S4: adjusting the amount of the foaming agent so that the pore size of the bubbles inside the multiple concrete layers (401) decreases from the upper layer to the lower layer.

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