Paving structure capable of avoiding alkali efflorescence of antique black bricks

Abstract

The utility model relates to the field of garden civil engineering, and discloses a pavement structure capable of avoiding alkali efflorescence of antique black bricks, which comprises a plain soil layer, a base layer, a waterproof impervious layer and a pavement surface layer which are sequentially arranged from bottom to top, the pavement surface layer comprises a plurality of antique black bricks, the outer surfaces of the antique black bricks are coated with waterproof isolation layers, and the waterproof isolation layers are coated with waterproof anti-seepage layers. Brick joints are formed between the adjacent archaized black bricks, and the adjacent archaized black bricks are connected through a binder. According to the utility model, the waterproof impervious layer is arranged, so that water can be effectively prevented from permeating upwards from the underground; the waterproof isolating layer is coated on the outer surface of the antique black brick, so that a layer of waterproof film can be formed on the outer surface of the waterproof black brick, the possibility of water intruding into the antique black brick is further reduced, and the possibility of alkali efflorescence of the antique black brick is reduced.

Description

Technical Field

[0001] The utility model relates to the field of garden civil engineering, in particular to a paving structure for preventing antique blue bricks from returning to alkali. Background Art

[0002] During the paving process of antique blue bricks, alkali backflow is a common problem. This is mainly caused by the soluble salt substances inside the brick body migrating to the surface and crystallizing under the action of water.

[0003] Patent publication number CN220538290U discloses a paving structure designed to prevent alkali reversion of antique blue bricks. The structure comprises a base soil layer, a gravel layer on top of the base soil layer, an anti-seepage concrete cushion layer on top of the gravel layer, an anti-seepage cement mortar layer on top of the anti-seepage cement mortar layer, and an antique blue brick paving surface layer on top of the anti-seepage cement mortar layer. The antique blue brick paving surface layer comprises several antique blue bricks, each of which is coated with an isolation agent on its outer surface, and a water repellent agent on its display surface. The isolation agent and water repellent provide a waterproof layer for the antique blue bricks, isolating them from the effects of external moisture and maximizing the color and lifespan of the antique blue bricks.

[0004] However, this solution has the following defects: no waterproof and anti-seepage layer is set in the base layer of this patent, and moisture can still penetrate upward from the ground, causing long-term corrosion to the isolation agent, and there is still the possibility of alkali backflow. Utility Model Content

[0005] The utility model aims to provide a paving structure which can prevent the alkali return of antique blue bricks, so as to overcome the above-mentioned shortcomings.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present utility model is:

[0007] A paving structure for preventing antique blue bricks from returning to alkali includes a plain soil layer, a base layer, a waterproof and anti-seepage layer, and a paving surface layer arranged in sequence from bottom to top. The paving surface layer includes a plurality of antique blue bricks, the outer surfaces of the antique blue bricks are coated with a waterproof isolation layer, and brick joints are formed between adjacent antique blue bricks and connected by an adhesive.

[0008] Furthermore, the waterproof and anti-seepage layer includes two mortar layers and a waterproof layer sandwiched between the two mortar layers.

[0009] Furthermore, the material of the waterproof layer is waterproof roll.

[0010] Furthermore, the waterproof isolation layer includes a first isolation layer coated on the back and side surfaces of the antique blue brick, and a second isolation layer coated on the outer surface of the antique blue brick.

[0011] Furthermore, the first isolation layer is a polymer cement-based protective coating, and the second isolation layer is made of an organic silicon material layer.

[0012] Furthermore, a transparent water-based topcoat layer is provided above the second isolation.

[0013] Furthermore, the base layer includes a graded crushed stone layer and a concrete layer located on the graded crushed stone layer.

[0014] Furthermore, the strength of the concrete layer is not less than C25.

[0015] Furthermore, the adhesive is arranged at the bottom of the brick joint, and a grout is also arranged at the top of the brick joint.

[0016] Furthermore, the grout is a blue-gray grout.

[0017] Compared with the prior art, the present invention has at least the following advantages:

[0018] The utility model can effectively prevent moisture from penetrating upward from the ground by arranging a waterproof and anti-seepage layer; applying a waterproof isolation layer on the outer surface of the antique blue brick can form a waterproof film on the outer surface of the waterproof blue brick, further reducing the possibility of moisture invading the antique blue brick and reducing the possibility of alkali return of the antique blue brick. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of the paving structure for preventing antique blue bricks from returning to alkali;

[0021] Figure 2 For this utility model Figure 1 A partial enlarged view of area A in the middle.

[0022] Figure numerals: 1. Soil layer; 2. Graded gravel layer; 3. Concrete layer; 4. Mortar layer; 5. Waterproof layer; 6. Antique blue brick; 7. First isolation layer; 8. Second isolation layer; 9. Transparent water-based topcoat layer; 10. Adhesive; 11. Grout. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] Reference Figure 1-2 The present invention provides a paving structure that prevents alkali reversion of antique blue bricks. The structure comprises, from bottom to top, a base layer (1), a waterproof and anti-seepage layer, and a paving surface layer. The paving surface layer is composed of a plurality of antique blue bricks (6). The outer surfaces of the antique blue bricks (6) are coated with a waterproof isolation layer. Adjacent antique blue bricks (6) are connected by joints formed with adhesive (10).

[0026] Setting a waterproof and anti-seepage layer can effectively prevent water from penetrating upward from underground. Applying a waterproof isolation layer on the outer surface of the antique blue brick 6 can form a waterproof film on the outer surface of the waterproof blue brick, further reducing the possibility of water intrusion into the antique blue brick 6, thereby reducing the alkali back phenomenon of the antique blue brick 6.

[0027] Preferably, the base layer includes a graded crushed stone layer 2 and a concrete layer 3 located on the graded crushed stone layer 2. The strength of the concrete layer 3 is not less than C25.

[0028] In the present invention, the paving surface layer should be provided with a certain drainage slope, for example, the slope is set to 1%-2%, so that surface water can be quickly drained away and does not accumulate under the antique blue bricks 6, thereby reducing the possibility of alkali backflow.

[0029] Preferably, the waterproof and anti-seepage layer includes two mortar layers 4 and a waterproof layer 5 sandwiched between the two mortar layers 4, and the material of the waterproof layer 5 is a waterproof roll.

[0030] The lower mortar layer 4 provides a smooth, solid foundation for the waterproof membrane. It fills in minor surface irregularities, allowing for smoother installation and preventing hollowing and cracking issues that can occur with uneven substrates. For example, if the substrate is a concrete slab, its surface may contain small pores or uneven areas. The lower mortar layer effectively compensates for these imperfections, ensuring a tight fit for the waterproof membrane.

[0031] The upper mortar layer 4 protects the waterproof membrane. During daily use, the upper mortar layer prevents external objects from directly contacting and damaging the waterproof membrane. For example, when people walk on the ground or small equipment is moved, the upper mortar layer can withstand the pressure and friction, preventing damage to the waterproof membrane.

[0032] The antique blue bricks 6 are preferably installed using a dry-laying method to reduce the moisture content in the cement mortar. A dedicated grout 11 is also used to seal the brick joints and prevent moisture from seeping in. The adhesive 10 in this invention is applied to the bottom of the brick joints, and a grout 11 is also applied to the top of the joints. Grout 11 is preferably a blue-gray grout.

[0033] Preferably, the waterproof isolation layer includes a first isolation layer 7 coated on the back and sides of the antique blue brick 6, and a second isolation layer 8 coated on the outer surface of the antique blue brick 6. The first isolation layer 7 is a polymer cement-based protective coating, and the second isolation layer 8 is a silicone material layer.

[0034] Finally, after the antique blue bricks 6 are installed, a transparent water-based topcoat layer 9 is provided on top of the second isolation layer 8 .

[0035] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0036] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A paving structure for preventing alkali backflow of antique blue bricks, characterized in that: The invention comprises a plain soil layer (1), a base layer, a waterproof and anti-seepage layer and a paving surface layer arranged in sequence from bottom to top, wherein the paving surface layer comprises a plurality of antique blue bricks (6), the outer surfaces of the antique blue bricks (6) are coated with a waterproof isolation layer, and brick joints are formed between adjacent antique blue bricks (6) and connected by an adhesive (10).

2. The paving structure for preventing alkali return of antique blue bricks according to claim 1 is characterized in that: The waterproof and anti-seepage layer comprises two mortar layers (4) and a waterproof layer (5) sandwiched between the two mortar layers (4).

3. The paving structure for preventing alkali return of antique blue bricks according to claim 2 is characterized in that: The material of the waterproof layer (5) is a waterproof coiled material.

4. The paving structure for preventing alkali return of antique blue bricks according to claim 3 is characterized in that: The waterproof isolation layer comprises a first isolation layer (7) coated on the back and side surfaces of the antique blue brick (6), and a second isolation layer (8) coated on the outer surface of the antique blue brick (6).

5. The paving structure for preventing alkali return of antique blue bricks according to claim 4 is characterized in that: The first isolation layer (7) is a polymer cement-based protective coating, and the second isolation layer (8) is made of an organic silicon material layer.

6. The paving structure for preventing alkali return of antique blue bricks according to claim 5 is characterized in that: A transparent water-based topcoat layer (9) is provided above the second isolation layer (8).

7. The paving structure for preventing alkali return of antique blue bricks according to claim 1 is characterized in that: The base layer comprises a graded crushed stone layer (2) and a concrete layer (3) located on the upper portion of the graded crushed stone layer (2).

8. The paving structure for preventing alkali return of antique blue bricks according to claim 7 is characterized in that: The strength of the concrete layer (3) is not less than C25.

9. The paving structure for preventing alkali return of antique blue bricks according to claim 1 is characterized in that: The adhesive (10) is arranged at the bottom of the brick joint, and a grout (11) is also arranged at the top of the brick joint.

10. The paving structure for preventing alkali backflow of antique blue bricks according to claim 9, characterized in that: The grout (11) is a blue-grey grout.

Images