Durable curb structure

Abstract

The durable curb structure comprises a pervious concrete curb formed by pouring pervious concrete, the durable curb structure is arranged on the outer side of a hard road shoulder or a curb zone of a road, and a pervious concrete curb gap is formed in the pervious concrete curb; the pervious concrete curb is characterized in that gaps of the pervious concrete curb are filled with cement composite polyacrylate, and the cement composite polyacrylate is formed by solidifying cement composite polyacrylate emulsion. According to the durable curb structure disclosed by the utility model, the gaps of the curb are filled with the cement composite polyacrylate, and the cement composite polyacrylate can be kept stable and is not easy to crack and fall off under severe conditions, so that a new structure is formed after the cement composite polyacrylate is combined with the pervious concrete curb; even if the curb is influenced by factors such as temperature change, frost heaving and a snow removing agent, the curb cannot crack, peel and the like, and the purpose of durability of the curb is achieved.

Description

Technical Field

[0001] The utility model relates to a durable curbstone structure, and more specifically, to a durable curbstone structure in which gaps of a permeable concrete curbstone are filled with cement composite polyacrylate. Background Art

[0002] Curbstones are usually required on the outside of the hard shoulder or curb of the highway. Curbstones mainly play two roles. First, they restrict vehicles to drive on the lanes and guide the driver's sight. Curbstones on urban roads also separate people and vehicles. Second, they are used for centralized drainage, diverting rainwater or ice and snow meltwater to the sewer entrance. In municipal and highway projects, ordinary concrete curbstones are prone to cracking, peeling and other diseases on the exposed surface of the curbstones due to the influence of temperature, frost heave, snow removal agents and other factors, which seriously affects the appearance and life of the curbstones. Summary of the invention

[0003] In order to overcome the disadvantages of the above technical problems, the utility model provides a durable curbstone structure.

[0004] The durable curbstone structure of the utility model comprises a permeable concrete curbstone cast by permeable concrete, the durable curbstone structure is arranged on the outside of the hard shoulder or curb of the highway, and a permeable concrete curbstone gap is formed in the permeable concrete curbstone; the utility model is characterized in that the gap of the permeable concrete curbstone is filled with cement composite polyacrylate, and the cement composite polyacrylate is formed by solidifying cement composite polyacrylate emulsion.

[0005] The utility model discloses a durable curb stone structure. The outer surface of the permeable concrete curb stone is provided with a wrapping layer, and the wrapping layer is composed of cement composite polyacrylate.

[0006] The utility model discloses a durable curbstone structure, wherein the outer periphery of the wrapping layer is wrapped with a plastic film for preventing cement composite polyacrylate emulsion from seeping out.

[0007] The utility model discloses a durable curb stone structure, wherein the inner side of the upper part of the permeable concrete curb stone is provided with an inclined slope surface.

[0008] The durable curbstone structure of the utility model has a maximum particle size of aggregate in the permeable concrete constituting the permeable concrete curbstone of no more than 2 cm, a connected porosity of the permeable concrete curbstone of 20% to 26%, and a strength of the permeable concrete constituting the permeable concrete curbstone of 25 MPa to 35 MPa.

[0009] The utility model discloses a durable curbstone structure, wherein the cement composite polyacrylate is formed by solidifying a cement composite polyacrylate emulsion, the strength grade of the cement in the cement composite polyacrylate emulsion is not less than grade 32.5, and the fluidity of the cement composite polyacrylate emulsion in 30 minutes is 10s-18s.

[0010] The durable curbstone structure of the utility model has a length of 50 cm to 100 cm of the permeable concrete curbstone.

[0011] The beneficial effects of the utility model are as follows: the durable curbstone structure of the utility model, the permeable concrete curbstone is formed by pouring permeable concrete, and the gaps in the cast permeable concrete curbstone are filled with cement composite polyacrylate. Because the cement composite polyacrylate can remain stable under adverse conditions and is not easy to crack and fall off, the cement composite polyacrylate is combined with the permeable concrete curbstone to form a new structure. Even if the curbstone is affected by factors such as temperature changes, frost heave, and snow removal agents, it will not crack, peel, or other defects, thereby achieving the purpose of curbstone durability.

[0012] Furthermore, by providing a wrapping layer composed of a cement composite polyacrylate layer on the outer surface of the permeable concrete curbstone, the anti-seepage, anti-freezing and anti-corrosion properties of the curbstone are further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the durable curbstone structure of the utility model;

[0014] Figure 2 This is a usage status diagram of the durable curbstone structure of the utility model.

[0015] In the figure: 1 permeable concrete curb, 2 permeable concrete curb gap, 3 cement composite polyacrylate, 4 wrapping layer, 5 plastic film, 6 pavement base layer, 7 asphalt surface layer, 8 inclined slope. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] like Figure 1As shown, a schematic diagram of the structure of the durable curb structure of the utility model is given, which is composed of a permeable concrete curb 1 and a cement composite polyacrylate 3. The permeable concrete curb 1 shown is formed by pouring permeable concrete. After the permeable concrete is poured to form the permeable concrete curb 1, a permeable concrete curb gap 2 is formed inside the curb, and the permeable concrete curb gap 2 is filled with cement composite polyacrylate 3. The cement composite polyacrylate 3 filled in the permeable concrete curb gap 2 is formed by solidifying a cement composite polyacrylate emulsion, which is formed by immersing the permeable concrete curb 1 in a cement composite polyacrylate emulsion after the strength of the permeable concrete curb 1 reaches 80% of the design strength.

[0018] Since cement composite polyacrylate can maintain excellent stability under adverse conditions, the curb formed by the permeable concrete curb 1 and the cement composite polyacrylate 3 will not suffer from cracking, peeling and other defects under the influence of temperature changes, frost heave, snow removal agents and other factors, thereby achieving the purpose of curb durability.

[0019] The outer surface of the permeable concrete curb 1 is provided with a wrapping layer 4, the material of the wrapping layer 4 is cement composite polyacrylate 3, and the wrapping layer 4 is also formed by solidification of cement composite polyacrylate emulsion. After the permeable concrete curb 1 is soaked in the cement composite polyacrylate emulsion, a plastic film 5 is wrapped on its outer surface, and a wrapping layer 4 composed of cement composite polyacrylate is formed on the inner side of the plastic film 5. Due to the existence of the wrapping layer 4, the anti-seepage, anti-freeze and anti-corrosion properties of the curb are further improved.

[0020] The inner side of the upper part of the permeable concrete curb 1 is provided with an inclined slope 8. Due to the existence of the inclined slope 8, the force-bearing area of ​​the inner side of the upper part of the permeable concrete curb 1 is increased, which can effectively prevent the permeable concrete curb 1 from being damaged due to accidental collisions, and also prevent the sharp upper part from causing unnecessary damage to pedestrians or vehicles.

[0021] The maximum particle size of aggregate in the permeable concrete constituting the permeable concrete curbstone 1 is no more than 2 cm, the connected porosity of the permeable concrete curbstone 1 is 20%~26%, and the strength of the permeable concrete constituting the permeable concrete curbstone 1 is 25MPa~35MPa.

[0022] The strength grade of cement in the cement composite polyacrylate emulsion is not less than 32.5, and the 30-minute fluidity of the cement composite polyacrylate emulsion is 10s~18s. Usually, the length of the permeable concrete curb 1 is 50cm~100cm.

[0023] The manufacturing process of the durable curbstone structure of the utility model is as follows:

[0024] First, permeable concrete is cast to form a permeable concrete curb 1. After the strength of the cast permeable concrete curb 1 reaches 80% of the design strength, it is immersed in a cement composite polyacrylate emulsion for 5 minutes to 10 minutes, and the immersion temperature is between 10°C and 35°C.

[0025] After the permeable concrete curb 1 is soaked in the cement composite polyacrylate emulsion, the outer surface is wrapped with a plastic film 5 to prevent the immersed mud composite polyacrylate emulsion from excessively seeping out; before the mud composite polyacrylate emulsion is finally set, the plastic film 5 is removed and the exposed surface is polished, and after the polishing is completed, it is cured for a curing time of not less than 7 days, finally forming the curb of the utility model.

Claims

1. A durable curbstone structure, comprising a permeable concrete curbstone (1) cast by permeable concrete, the durable curbstone structure being arranged on the outside of a hard shoulder or curb strip of a highway, and a permeable concrete curbstone gap (2) being formed in the permeable concrete curbstone; characterized in that: The voids (2) of the permeable concrete curbstone are filled with cement composite polyacrylate (3), and the cement composite polyacrylate (3) is formed by solidifying a cement composite polyacrylate emulsion.

2. The durable curb structure according to claim 1, characterized in that: A wrapping layer (4) is provided on the outer surface of the permeable concrete curbstone (1), and the wrapping layer is composed of cement-composite polyacrylate (3).

3. The durable curb structure according to claim 2, characterized in that: The outer periphery of the wrapping layer (4) is wrapped with a layer of plastic film (5) for preventing the cement composite polyacrylate emulsion from seeping out.

4. The durable curb structure according to claim 1 or 2, characterized in that: An inclined slope (8) is provided on the inner side of the upper portion of the permeable concrete curbstone (1).

5. The durable curb structure according to claim 1 or 2, characterized in that: The maximum particle size of the aggregate in the permeable concrete constituting the permeable concrete curbstone (1) does not exceed 2 cm, the connected porosity of the permeable concrete curbstone is between 20% and 26%, and the strength of the permeable concrete constituting the permeable concrete curbstone is between 25 MPa and 35 MPa.

6. The durable curb structure according to claim 1 or 2, characterized in that: The strength grade of the cement in the cement composite polyacrylate emulsion is not less than grade 32.5, and the fluidity of the cement composite polyacrylate emulsion within 30 minutes is 10s to 18s.

7. The durable curb structure according to claim 1 or 2, characterized in that: The length of the permeable concrete curbstone (1) is 50 cm to 100 cm.

Images