Construction of recycled aggregate foam concrete roadbed insulation layer

Abstract

The utility model discloses a recycled aggregate foam concrete roadbed heat preservation layer structure, which comprises a soil base layer, a leveling layer is arranged on the top of the soil base layer, and a recycled aggregate foam concrete heat preservation layer is arranged on the top of the leveling layer. The utility model discloses the hole is set up on the leveling layer according to distance and is fixed on the soil base layer through four fixed piles pin, then the reinforcing mesh is placed in the inner cavity of the cross groove of the support frame, then the limiting sleeve is screwed on the surface of the support frame, the reinforcing mesh is prevented from separating from the inner cavity of the cross groove in the process of pouring the recycled aggregate foam concrete heat preservation layer, then the recycled aggregate foam concrete heat preservation layer is poured to reach the appropriate thickness, and the fixed disc, the stand, the support frame and the reinforcing mesh can increase the adhesion and support capacity of the recycled aggregate foam concrete heat preservation layer, that is, the adhesion of the recycled aggregate foam concrete can be improved by using the embedded reinforcing mesh and anchoring support, and the molding effect is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of highway subgrade technology, and in particular relates to the structure of a recycled aggregate foamed concrete subgrade insulation layer. Background Technology

[0002] Recycled aggregate foamed concrete roadbed insulation layer is a composite structure that combines environmental protection (utilization of recycled aggregates), heat insulation (porous characteristics of foamed concrete) and structural functions. It is mainly used in cold regions or seasonally frozen soil areas to reduce heat exchange in the roadbed and prevent diseases such as frost heave and thaw settlement.

[0003] Recycled aggregate foamed concrete is a porous, lightweight material made primarily from recycled aggregates from construction waste (such as waste concrete blocks and crushed bricks and stones), mixed with cement, foaming agents, etc., and then stirred, foamed, and hardened. To increase the adhesion of recycled aggregate foamed concrete, we designed a recycled aggregate foamed concrete subgrade insulation layer structure, using pre-embedded steel mesh in conjunction with anchoring supports to improve the adhesion of recycled aggregate foamed concrete and ensure its molding effect. Utility Model Content

[0004] The purpose of this invention is to provide a structure for a recycled aggregate foamed concrete roadbed insulation layer, which has the advantages of using pre-embedded steel mesh in conjunction with anchor support to improve the adhesion of recycled aggregate foamed concrete and ensure its molding effect, thereby solving the aforementioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a recycled aggregate foamed concrete roadbed insulation layer structure, which includes a soil base layer, a leveling layer on top of the soil base layer, a recycled aggregate foamed concrete insulation layer on top of the leveling layer, an asphalt waterproof layer on top of the recycled aggregate foamed concrete insulation layer, a fine stone concrete layer on top of the asphalt waterproof layer, multiple fixing plates installed on top of the soil base layer, columns welded to the top of the fixing plates, support frames welded to the top of the columns, and steel mesh installed in the inner cavity of the multiple support frames, the steel mesh being embedded inside the recycled aggregate foamed concrete insulation layer.

[0006] Preferably, the top of the support frame is provided with a cross groove, and the cross intersection of the reinforcing bars on the reinforcing bar mesh is located in the inner cavity of the cross groove.

[0007] Preferably, the outer surface of the support frame is provided with external threads, and a limit sleeve is connected to the top thread of the support frame surface.

[0008] Preferably, a hexagonal rotating block is fixedly connected to the top of the limiting sleeve.

[0009] Preferably, the fixing plate has four circular holes arranged in a ring, and a fixing pin is installed through the circular holes, with the end of the fixing pin driven into the interior of the soil base.

[0010] The beneficial effects of this utility model are: 1. This utility model involves creating holes at intervals in the leveling layer and fixing the fixing plate to the soil base using four fixing pins. Then, a steel mesh is placed inside the cross groove of the support frame, and a limiting sleeve is screwed onto the surface of the support frame to prevent the steel mesh from detaching from the inner cavity of the cross groove during the pouring of the recycled aggregate foamed concrete insulation layer. The recycled aggregate foamed concrete insulation layer is then poured to achieve a suitable thickness. During this process, the fixing plate, column, support frame, and steel mesh can increase the adhesion and support capacity of the recycled aggregate foamed concrete insulation layer. This achieves the purpose of using pre-embedded steel mesh in conjunction with anchor support to improve the adhesion of recycled aggregate foamed concrete and ensure its molding effect. 2. The present invention, through the setting of the hexagonal rotating block, facilitates the operation of the limit sleeve on the surface of the support frame by the construction personnel, providing convenience for the user. Attached Figure Description

[0011] The advantages of the present invention in the above and / or other aspects will become clearer and more readily understood through the following detailed description taken in conjunction with the accompanying drawings, which are merely illustrative and do not limit the present invention, wherein: Figure 1 This is a schematic diagram of one embodiment of the present utility model; Figure 2 This is a three-dimensional schematic diagram of a support frame and steel mesh according to an embodiment of the present invention; Figure 3 This is a three-dimensional disassembled schematic diagram of the support frame and steel mesh according to one embodiment of the present invention; Figure 4 This is one embodiment of the present utility model. Figure 1 A magnified view of point A in the middle.

[0012] The attached diagram lists the components represented by each number as follows: 1. Subgrade, 2. Leveling layer, 3. Recycled aggregate foamed concrete insulation layer, 4. Asphalt waterproof layer, 5. Fine stone concrete layer, 6. Fixing plate, 7. Column, 8. Support frame, 9. Reinforcing mesh, 10. Cross groove, 11. External thread, 12. Limiting sleeve, 13. Hexagonal swivel block, 14. Round hole, 15. Fixing pin. Detailed Implementation

[0013] In the following description, embodiments of the recycled aggregate foamed concrete roadbed insulation layer of this utility model will be described with reference to the accompanying drawings.

[0014] Figure 1-4This invention illustrates the structure of a recycled aggregate foamed concrete roadbed insulation layer according to an embodiment of the present invention. It includes a soil base layer 1, a leveling layer 2 on top of the soil base layer 1, a recycled aggregate foamed concrete insulation layer 3 on top of the leveling layer 2, an asphalt waterproofing layer 4 on top of the recycled aggregate foamed concrete insulation layer 3, a fine aggregate concrete layer 5 on top of the asphalt waterproofing layer 4, and multiple fixing discs 6 installed on the top of the soil base layer 1. Each fixing disc 6 has four circular holes 14 arranged in a ring array, and fixing pins 15 are installed through the holes 14. The ends of the fixing pins 15 are driven into the interior of the soil base layer 1. The top of the fixing discs 6 is welded... A column 7 is attached, and a support frame 8 is welded to the top of the column 7. A steel mesh 9 is installed in the inner cavity of multiple support frames 8. A cross groove 10 is opened on the top of the support frame 8. The cross intersection of the steel bars on the steel mesh 9 is located in the inner cavity of the cross groove 10. The steel mesh 9 is embedded in the interior of the recycled aggregate foamed concrete insulation layer 3. The outer surface of the support frame 8 is provided with external threads 11. The top of the surface of the support frame 8 is threadedly connected to a limiting sleeve 12. A hexagonal rotating block 13 is fixedly connected to the top of the limiting sleeve 12. The setting of the hexagonal rotating block 13 makes it easy for construction personnel to operate the limiting sleeve 12 to be screwed onto the surface of the support frame 8, providing convenience for users.

[0015] Working Principle: In use, this invention involves covering a leveling layer 2 on a soil base 1. Holes are then drilled in the leveling layer 2 at intervals, and a fixing plate 6 is secured to the soil base 1 using four fixing pins 15. Next, a reinforcing mesh 9 is placed inside the cross groove 10 of a support frame 8. A limiting sleeve 12 is then screwed onto the surface of the support frame 8 to limit the reinforcing mesh 9, preventing it from vibrating and detaching from the cross groove 10 during the pouring of the recycled aggregate foamed concrete insulation layer 3. The recycled aggregate foamed concrete insulation layer 3 is then poured, entering the holes in the leveling layer 2. Once the recycled aggregate foamed concrete... After the concrete insulation layer 3 reaches a suitable thickness, the asphalt waterproof layer 4 is applied over the recycled aggregate foamed concrete insulation layer 3, followed by the laying of the fine stone concrete layer 5. The steel frame composed of the fixing plate 6, column 7, support frame 8, and steel mesh 9 increases the adhesion of the recycled aggregate foamed concrete insulation layer 3, ensuring the overall strength and molding quality of the recycled aggregate foamed concrete insulation layer 3, thereby improving the support capacity of the recycled aggregate foamed concrete insulation layer 3. The leveling layer 2 eliminates unevenness of the base layer and provides uniform support for the insulation layer. The asphalt waterproof layer 4 prevents surface water and road surface seepage water from penetrating into the insulation layer, avoiding water ingress into the pores that would reduce insulation performance or cause freeze-thaw damage.

[0016] In summary, the structure of this recycled aggregate foamed concrete roadbed insulation layer involves covering a leveling layer 2 on a soil base 1, then drilling holes in the leveling layer 2 at intervals and fixing a fixing plate 6 to the soil base 1 using four fixing pins 15. Next, a reinforcing mesh 9 is placed inside the cross groove 10 of a support frame 8, and a limiting sleeve 12 is screwed onto the surface of the support frame 8 to prevent the reinforcing mesh 9 from detaching from the cross groove 10 during the pouring of the recycled aggregate foamed concrete insulation layer 3. After the recycled aggregate foamed concrete insulation layer 3 reaches a suitable thickness, an asphalt waterproof layer 4 is applied over it, followed by a fine stone concrete layer 5. The fixing plate 6, column 7, support frame 8, and reinforcing mesh 9 enhance the adhesion and support capabilities of the recycled aggregate foamed concrete insulation layer 3, thus achieving the goal of improving the adhesion of the recycled aggregate foamed concrete and ensuring its molding effect through the use of pre-embedded reinforcing mesh and anchoring support.

Claims

1. A structure for a recycled aggregate foamed concrete roadbed insulation layer, characterized in that, The system includes a soil base (1), a leveling layer (2) on top of the soil base (1), a recycled aggregate foamed concrete insulation layer (3) on top of the leveling layer (2), an asphalt waterproof layer (4) on top of the recycled aggregate foamed concrete insulation layer (3), a fine stone concrete layer (5) on top of the asphalt waterproof layer (4), a plurality of fixing plates (6) on top of the soil base (1), a column (7) welded to the top of the fixing plate (6), a support frame (8) welded to the top of the column (7), and a steel mesh (9) installed in the inner cavity of the plurality of support frames (8). The steel mesh (9) is embedded in the interior of the recycled aggregate foamed concrete insulation layer (3).

2. The structure of the recycled aggregate foamed concrete roadbed insulation layer according to claim 1, characterized in that, The top of the support frame (8) is provided with a cross groove (10), and the cross intersection of the steel bars on the steel mesh (9) is located in the inner cavity of the cross groove (10).

3. The structure of the recycled aggregate foamed concrete roadbed insulation layer according to claim 2, characterized in that, The outer surface of the support frame (8) is provided with an external thread (11), and the top of the surface of the support frame (8) is connected to a limit sleeve (12).

4. The structure of the recycled aggregate foamed concrete roadbed insulation layer according to claim 3, characterized in that, The top of the limiting sleeve (12) is fixedly connected to a hexagonal rotating block (13).

5. The structure of the recycled aggregate foamed concrete roadbed insulation layer according to claim 4, characterized in that, The fixed plate (6) has four circular holes (14) arranged in a ring. A fixed pile pin (15) is installed through the circular holes (14), and the end of the fixed pile pin (15) is driven into the interior of the soil base (1).

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