Sidewalk slab paving structure

Abstract

The utility model belongs to the field of road construction, and discloses a sidewalk slab paving structure which comprises a stone powder grouting bearing layer paved on a base layer and a plurality of sidewalk slabs paved on the stone powder grouting bearing layer, a gap is formed between every two adjacent sidewalk slabs, and a cement paste layer is filled in each gap. According to the utility model, the stone powder mortar is used as the bearing layer to replace the original cement mortar, so that the strength of the bearing layer is greatly improved, and the problems of sinking and cracking of the road plate are effectively solved; meanwhile, the gaps of the sidewalk plates are filled with neat cement paste, so that the connection between the sidewalk plates is tighter, and the bearing layer is prevented from being washed by rainwater.

Description

Technical Field

[0001] The utility model relates to the field of road construction, and more specifically, to a sidewalk slab paving structure. Background Art

[0002] The smoothness of the sidewalk slabs is not only related to the appearance of the city, but also plays a role in improving the urban pedestrian transportation system and the urban green travel environment. The existing sidewalk slab paving has the following problems:

[0003] 1) Subsidence and cracking: Insufficient foundation strength of the sidewalk slab is the main cause of subsidence and cracking. The traditional paving method sets 4cm dry-mixed mortar on the foundation as the load-bearing layer, which is obviously insufficient in strength;

[0004] 2) Loosening and slurry: Yellow sand has poor scouring resistance, and the joints between the road slabs have no waterproof function. Rainwater infiltration and scouring cause the cushion layer to be lost, resulting in loosening and settlement of the road slabs;

[0005] 3) The joints between the pavement are not fully filled: the joints between the pavement slabs are not filled with sufficient filling materials such as yellow sand, stone chips or coal slag, or there is no filling material at all, resulting in loose sidewalk paving panels. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a sidewalk slab paving structure.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A sidewalk slab paving structure comprises a stone powder grouting load-bearing layer laid on a base layer and a plurality of sidewalk slabs laid on the stone powder grouting load-bearing layer, wherein gaps are formed between adjacent sidewalk slabs and cement slurry layers are filled in the gaps.

[0009] Furthermore, the thickness of the stone powder grouting load-bearing layer is 2-3 cm.

[0010] Furthermore, the thickness of the stone powder grouting load-bearing layer is 2.5 cm.

[0011] Furthermore, an interface agent layer is arranged on the upper surface of the stone powder grouting load-bearing layer, and the sidewalk slab is located at the upper end of the interface agent layer.

[0012] Furthermore, the thickness of the interface agent layer is 0.3-0.7 cm.

[0013] Furthermore, the thickness of the interface agent layer is 0.5 cm.

[0014] Furthermore, the sidewalk slab has a thickness of 4-8 cm.

[0015] Furthermore, the thickness of the sidewalk slab is 6 cm.

[0016] Furthermore, the cement slurry layer is a plain cement slurry layer.

[0017] Furthermore, the upper surface of the cement slurry layer is flush with the upper surface of the sidewalk slab.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the utility model adopts stone powder mortar as the load-bearing layer, replacing the original cement mortar, thereby greatly improving the strength of the load-bearing layer and effectively solving the problem of road slab subsidence and cracking; at the same time, the gaps in the sidewalk slabs in the utility model are filled with plain cement slurry, making the connection between the road slabs tighter and avoiding the erosion of the load-bearing layer by rainwater. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of grouting of the cement slurry layer in the utility model.

[0021] In the figure: base layer 1, stone powder grouting load-bearing layer 2, sidewalk slab 3, cement slurry layer 4, gap 5, interface agent layer 6, syringe 7. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 and Figure 2 A sidewalk slab paving structure includes a stone powder grouting load-bearing layer 2 laid on a base layer 1 and a plurality of sidewalk slabs 3 laid on the stone powder grouting load-bearing layer 2, gaps are formed between adjacent sidewalk slabs 3, and a cement slurry layer 4 is filled in the gaps 5.

[0024] Continue reading Figure 1 In one embodiment of the utility model, an interface agent layer 6 is provided on the upper surface of the stone powder grouting load-bearing layer 2 , and the sidewalk slab 3 is located at the upper end of the interface agent layer 6 .

[0025] Continue reading Figure 1In one embodiment of the utility model, the thickness of the stone powder grouting load-bearing layer 2 is 2-3cm, preferably 2.5cm; the thickness of the interface agent layer 6 is 0.3-0.7cm, preferably 0.5cm; the thickness of the sidewalk slab 3 and the cement slurry layer 4 are the same, both 4-8cm, preferably 6cm, and the upper surface of the cement slurry layer 4 is flush with the upper surface of the sidewalk slab 3.

[0026] The cement slurry layer 4 is preferably a plain cement slurry layer. Plain cement slurry is also called pure cement slurry, which is a cement slurry without any other materials except cement and water.

[0027] Before construction, the site should be cleaned up, and the pre-processed parts for water, heating, electricity and other types of work should be checked for any impact on the construction. The specifications, sizes, colors, corner defects, etc. of the panels should also be checked, and the panels should be classified and stacked. The construction process of the utility model is: dismantling the original pavement sidewalk slabs → cleaning and tidying up the base surface → setting the elevation and marking the lines → selecting materials and soaking the panels in water → spreading stone powder mortar → applying interface agent → paving the road slabs → filling the seams with plain cement slurry → cleaning the pavement → maintenance and opening to traffic.

[0028] like Figure 2 As shown, when grouting, use a 500CC syringe to suck in a certain amount of plain cement slurry, aim the needle at the gap between the slabs, and inject the slurry straightly until the gap is full.

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A sidewalk slab paving structure, characterized in that: It comprises a stone powder grouting load-bearing layer (2) laid on a base layer (1) and a plurality of sidewalk slabs (3) laid on the stone powder grouting load-bearing layer (2), wherein gaps (5) are formed between adjacent sidewalk slabs (3), and a cement slurry layer (4) is filled in the gaps (5).

2. A sidewalk slab paving structure according to claim 1, characterized in that: The thickness of the stone powder grouting load-bearing layer (2) is 2-3 cm.

3. A sidewalk slab paving structure according to claim 1, characterized in that: The thickness of the stone powder grouting load-bearing layer (2) is 2.5 cm.

4. A sidewalk slab paving structure according to claim 1, characterized in that: An interface agent layer (6) is provided on the upper surface of the stone powder grouting load-bearing layer (2), and the sidewalk slab (3) is located at the upper end of the interface agent layer (6).

5. A sidewalk slab paving structure according to claim 4, characterized in that: The thickness of the interface agent layer (6) is 0.3-0.7 cm.

6. A sidewalk slab paving structure according to claim 4, characterized in that: The thickness of the interface agent layer (6) is 0.5 cm.

7. The sidewalk slab paving structure according to claim 1, characterized in that: The thickness of the sidewalk slab (3) is 4-8 cm.

8. The sidewalk slab paving structure according to claim 1, characterized in that: The thickness of the sidewalk slab (3) is 6 cm.

9. The sidewalk slab paving structure according to claim 1, characterized in that: The cement slurry layer (4) is a plain cement slurry layer.

10. The sidewalk slab paving structure according to claim 1, characterized in that: The upper surface of the cement slurry layer (4) is flush with the upper surface of the sidewalk slab (3).

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