Construction method of mixed greening concrete with grass and trees and shrubs

Abstract

The present invention relates to the technical field of greening concrete, and in particular to a construction method of mixed greening concrete with grass and trees and shrubs. It mainly aims at the problem that the soil of existing greening concrete is easy to lose and the amount of watering for plants is inconvenient to control, and proposes the following technical scheme: including a concrete model, the concrete model includes a growth frame body, the growth frame body includes a shrub growth area, a grass growth area one and a grass growth area two, and a water guide plate is arranged on one side of the shrub growth area. The present invention selects and proportions concrete and raw materials to prepare a concrete growth frame with good water permeability and air permeability, which is conducive to the growth of plants, and the raw materials are easy to obtain and low in cost. The structural setting of the growth frame enables each layer of plants to control the amount of irrigation water, avoids the plants being flooded due to excessive water, avoids soil loss, is conducive to the growth of plants, is suitable for promotion and use, and is mainly used in greening concrete.

Description

Technical Field

[0001] The invention relates to the technical field of greening concrete, and in particular to a construction method of greening concrete mixed with grass and trees and shrubs. Background Art

[0002] Green concrete is a new environmentally friendly technology. It is a kind of concrete that is suitable for plant growth, has high strength, and can be quickly constructed on site. It realizes the desire to plant grass on concrete and is a revolution in traditional slope protection technology. It has the advantages of high strength, high air permeability, durability, strong anti-scouring ability, and good anti-freeze and thaw resistance. It is suitable for projects such as river, lake and sea water systems, black and smelly river management, hard slope protection reconstruction, road traffic, green buildings and sponge cities, and plays a role in consolidating soil and slope protection, improving ecology and beautifying the environment. A large number of continuous holes are opened on the traditional greening concrete to provide the space required for the normal growth of vegetation. However, the pores of the greening concrete itself are relatively large, and water and nutrients may be directly lost from the pores. Therefore, the patent "CN112851210A" proposes "a greening concrete structure and its preparation method". In this scheme, spiral concrete is set up, and when planting plants, large plants are planted in the concrete column, and small plants are planted in the concrete spiral, so as to increase the aesthetics of plant planting; at the same time, the inside of the concrete column is irrigated through the water distribution pipe to ensure the normal growth of large plants; however, in this scheme, a variety of additives are added to the proportion of concrete, which will affect the growth of plants. At the same time, the continuously rotating concrete spiral is very likely to cause water and soil loss. The soil thickness at the bottom of the spiral is high, and the soil above is thin, so the growth of vegetation is limited, and the amount of water for irrigation is not easy to control; in view of this, we propose a construction method for greening concrete mixed with grass and trees and shrubs. Summary of the invention

[0003] The purpose of the present invention is to address the problems existing in the background technology and to propose a construction method for greening concrete with mixed grass and trees and shrubs.

[0004] The technical solution of the present invention is as follows: a construction method of mixed greening concrete for grass and trees and shrubs, comprising a concrete model, the concrete model comprising a growth frame body, the growth frame body comprising a shrub growth area, a grass growth area 1 and a grass growth area 2, a water guide plate is arranged on one side of the shrub growth area, the other end of the water guide plate is connected to the grass growth area 2, a water permeable hole 2 is opened on one side of the water guide plate, a plurality of water permeable holes 1 are opened on the shrub growth area, and a water permeable hole 3 is opened at the bottom of the grass growth area 2, and the concrete construction method comprises the following steps:

[0005] S1. Concrete mix ratio: prepare the following raw materials by weight for concrete modeling: 80-90 parts of crushed stone, 6-12 parts of cement, 1.5-3.5 parts of water retaining agent, 0.5-1.5 parts of accelerating agent, 0.6-0.8 parts of wood fiber, 0.1-0.3 parts of lime powder, 3-9 steel bars, and the rest is water;

[0006] S2, concrete mold forming: the prepared raw materials are made into the growth frame body through the mold, and the mold is removed after standing for 46 hours;

[0007] S3, model processing: After the growth frame body is formed, water-permeable hole 1, water-permeable hole 2 and water-permeable hole 3 are opened, and the inner circles of water-permeable hole 1, water-permeable hole 2 and water-permeable hole 3 are polished;

[0008] S4. Planting plants: laying soil and nutrients required for the growth of grass and shrubs in the growth frame body, planting trees and shrubs in the shrub growth area, and sowing grass seeds in the grass growth area 1 and the grass growth area 2.

[0009] Preferably, S1 comprises the following raw materials in parts by mass: 80 parts of crushed stone, 6 parts of cement, 1.5 parts of water retaining agent, 0.5 parts of accelerating agent, 0.6 parts of wood fiber, 0.1 parts of lime powder, 3 steel bars, and the rest is water.

[0010] Preferably, S1 comprises the following raw materials in parts by mass: 90 parts of crushed stone, 12 parts of cement, 3.5 parts of water retaining agent, 1.5 parts of accelerating setting agent, 0.8 parts of wood fiber, 0.3 parts of lime powder, 9 steel bars, and the rest is water.

[0011] Preferably, S1 comprises the following raw materials in parts by mass: 85 parts of crushed stone, 9 parts of cement, 2.5 parts of water retaining agent, 1 part of accelerating agent, 0.7 parts of wood fiber, 0.2 parts of lime powder, 6 steel bars, and the rest is water.

[0012] Preferably, the particle size of the crushed stone is 4-8 mm, the cement is C25 type, and the water retaining agent is starch grafted acrylate, specifically starch, acrylate, water and cross-linking agent. The mass ratio of starch, acrylate, water and cross-linking agent is (1.2-1.3): (0.5-0.7): (0.35-0.36): (0.9-0.12), and the cross-linking agent is triallyl.

[0013] Preferably, the quick-setting agent is alumina clinker, the wood fiber is a combination of rice straw and wheat straw, and the steel bar is any one of HRB400 and RRB400.

[0014] Preferably, the inner wall of the cap is detachably connected with a filter screen, and the filter screen is used to filter soil to prevent soil loss. Each layer of the water guide plate has four groups.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] 1. In the selection of raw materials for concrete, the invention adds an accelerating setting agent into the concrete to enable the concrete to set and harden quickly. The addition of a water retaining agent allows the water in the planting area to be absorbed and released to form a micro reservoir, which is beneficial to the planting of plants. At the same time, the use of a smaller particle size to replace the use of sand can improve the air permeability and water permeability of the greening concrete.

[0017] 2. The multi-layer grass growing area 2 and grass growing area 1 in the growth frame body of the present invention are suitable for planting shorter grass. The shrub growing area is set to plant trees and shrubs. The planting species are diverse and the adaptability is high. The shrub growing area and the water permeable hole 2 are set. When the shrub growing area is watered, water will flow through the water guide plate through the water permeable hole 1. The water permeable hole 2 will flow the water into the grass growing area 1 and the grass growing area 2, and penetrate step by step, so that each layer of plants can be watered. Excess water will flow out from the water guide pipe and the cap to avoid damage to the plants caused by excessive water. The filter net in the cap is set to prevent soil loss.

[0018] 3. In summary, the present invention selects and proportions concrete and raw materials to prepare a concrete growth frame with good water permeability and air permeability, which is beneficial to the growth of plants. The raw materials are easy to obtain and low in cost. The structural setting of the growth frame enables each layer of plants to control the amount of irrigation water, avoid flooding of plants due to excessive water, avoid soil loss, and is beneficial to the growth of plants. The frame is suitable for promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a flow chart of the construction method of mixed greening concrete with grass and trees and shrubs;

[0020] Figure 2 It is a structural schematic diagram of the concrete growth frame body.

[0021] Figure numerals: 1. Growth frame body; 11. Shrub growth area; 12. Grass growth area one; 13. Grass growth area two; 14. Water guide plate; 15. Water hole one; 16. Water hole two; 17. Water hole three; 18. Water guide pipe; 19. Cover cap. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Embodiment 1

[0024] like Figure 1-2As shown, the construction method of the grass and tree and shrub mixed greening concrete proposed by the present invention includes a concrete model, the concrete model includes a growth frame body 1, the growth frame body 1 includes a shrub growth area 11, a grass growth area 12 and a grass growth area 2 13, a water guide plate 14 is provided on one side of the shrub growth area 11, the other end of the water guide plate 14 is connected to the grass growth area 2 13, a water permeable hole 2 16 is opened on one side of the water guide plate 14, a plurality of water permeable holes 15 are opened on the shrub growth area 11, and a water permeable hole 3 17 is opened at the bottom of the grass growth area 2 13, and the concrete construction method includes the following steps:

[0025] S1. Concrete mix ratio: prepare the following raw materials by mass for concrete modeling: 80 parts of crushed stone, 6 parts of cement, 1.5 parts of water retaining agent, 0.5 parts of accelerating agent, 0.6 parts of wood fiber, 0.1 parts of lime powder, 3 steel bars, and the rest is water;

[0026] S2, concrete mold forming: the prepared raw materials are made into a growth frame body 1 through a mold, and the mold is removed after standing for 46 hours;

[0027] S3, model processing: After the growth frame body 1 is formed, a water-permeable hole 15, a water-permeable hole 2 16 and a water-permeable hole 3 17 are opened, and the inner circles of the water-permeable hole 15, the water-permeable hole 2 16 and the water-permeable hole 3 17 are polished;

[0028] S4, Planting plants: laying soil and nutrients required for the growth of grass and shrubs in the growth frame body 1, planting trees and shrubs in the shrub growth area 11, and sowing grass seeds in the grass growth area 12 and the grass growth area 2 13.

[0029] In this embodiment, the particle size of the crushed stone is 7 mm, the cement is C25 type, the water retaining agent is starch grafted acrylate, specifically starch, acrylate, water and cross-linking agent, the mass ratio of starch, acrylate, water and cross-linking agent is 1.2:0.6:0.35:0.11, the cross-linking agent is triallyl, the accelerator is alumina clinker, the wood fiber is a combination of rice and wheat straw, the steel bar is HRB400, the grass growing area 13 and the grass growing area 1 have multiple layers, and a water pipe 18 is fixedly provided on one side of the bottom grass growing area 13, and a cap 19 is installed at one end of the water pipe 18, the cap 19 is rotatably connected to the outer ring of the water pipe 18, and the inner wall of the cap 19 is detachably connected with a filter screen, which is used to filter soil to prevent soil loss, and there are four groups of water guide plates 14 per layer.

[0030] Embodiment 2

[0031] like Figure 1-2As shown, the construction method of the grass and tree and shrub mixed greening concrete proposed by the present invention, compared with the first embodiment, this embodiment also includes a concrete model, the concrete model includes a growth frame body 1, the growth frame body 1 includes a shrub growth area 11, a grass growth area 12 and a grass growth area 2 13, a water guide plate 14 is provided on one side of the shrub growth area 11, the other end of the water guide plate 14 is connected to the grass growth area 2 13, a water permeable hole 2 16 is opened on one side of the water guide plate 14, a plurality of water permeable holes 15 are opened on the shrub growth area 11, and a water permeable hole 3 17 is opened at the bottom of the grass growth area 2 13, and the concrete construction method includes the following steps:

[0032] S1. Concrete mix ratio: prepare the following raw materials by mass for concrete modeling: 90 parts of crushed stone, 12 parts of cement, 3.5 parts of water retaining agent, 1.5 parts of accelerating agent, 0.8 parts of wood fiber, 0.3 parts of lime powder, 9 steel bars, and the rest is water;

[0033] S2, concrete mold forming: the prepared raw materials are made into a growth frame body 1 through a mold, and the mold is removed after standing for 46 hours;

[0034] S3, model processing: After the growth frame body 1 is formed, a water-permeable hole 15, a water-permeable hole 2 16 and a water-permeable hole 3 17 are opened, and the inner circles of the water-permeable hole 15, the water-permeable hole 2 16 and the water-permeable hole 3 17 are polished;

[0035] S4, Planting plants: laying soil and nutrients required for the growth of grass and shrubs in the growth frame body 1, planting trees and shrubs in the shrub growth area 11, and sowing grass seeds in the grass growth area 12 and the grass growth area 2 13.

[0036] In this embodiment, the particle size of the crushed stone is 7 mm, the cement is C25 type, the water retaining agent is starch grafted acrylate, specifically starch, acrylate, water and cross-linking agent, the mass ratio of starch, acrylate, water and cross-linking agent is 1.2:0.6:0.35:0.11, the cross-linking agent is triallyl, the accelerator is alumina clinker, the wood fiber is a combination of rice and wheat straw, the steel bar is HRB400, the grass growing area 13 and the grass growing area 1 have multiple layers, and a water pipe 18 is fixedly provided on one side of the bottom grass growing area 13, and a cap 19 is installed at one end of the water pipe 18, the cap 19 is rotatably connected to the outer ring of the water pipe 18, and the inner wall of the cap 19 is detachably connected with a filter screen, which is used to filter soil to prevent soil loss, and there are four groups of water guide plates 14 per layer.

[0037] Embodiment 3

[0038] like Figure 1-2As shown, the construction method of the grass and tree and shrub mixed greening concrete proposed by the present invention, compared with the first or second embodiment, this embodiment also includes a concrete model, the concrete model includes a growth frame body 1, the growth frame body 1 includes a shrub growth area 11, a grass growth area 12 and a grass growth area 2 13, a water guide plate 14 is provided on one side of the shrub growth area 11, the other end of the water guide plate 14 is connected to the grass growth area 2 13, a water permeable hole 2 16 is opened on one side of the water guide plate 14, a plurality of water permeable holes 15 are opened on the shrub growth area 11, and a water permeable hole 3 17 is opened at the bottom of the grass growth area 2 13, and the concrete construction method includes the following steps:

[0039] S1. Concrete mix ratio: prepare the following raw materials by mass for concrete model forming: 85 parts of crushed stone, 9 parts of cement, 2.5 parts of water retaining agent, 1 part of accelerating agent, 0.7 parts of wood fiber, 0.2 parts of lime powder, 6 steel bars, and the rest is water;

[0040] S2, concrete mold forming: the prepared raw materials are made into a growth frame body 1 through a mold, and the mold is removed after standing for 46 hours;

[0041] S3, model processing: After the growth frame body 1 is formed, a water-permeable hole 15, a water-permeable hole 2 16 and a water-permeable hole 3 17 are opened, and the inner circles of the water-permeable hole 15, the water-permeable hole 2 16 and the water-permeable hole 3 17 are polished;

[0042] S4, Planting plants: laying soil and nutrients required for the growth of grass and shrubs in the growth frame body 1, planting trees and shrubs in the shrub growth area 11, and spreading grass in the grass growth area 1 12 and the grass growth area 2 13.

[0043] In this embodiment, the particle size of the crushed stone is 7 mm, the cement is C25 type, the water retaining agent is starch grafted acrylate, specifically starch, acrylate, water and cross-linking agent, the mass ratio of starch, acrylate, water and cross-linking agent is 1.2:0.6:0.35:0.11, the cross-linking agent is triallyl, the accelerator is alumina clinker, the wood fiber is a combination of rice and wheat straw, the steel bar is HRB400, the grass growing area 13 and the grass growing area 1 have multiple layers, and a water pipe 18 is fixedly provided on one side of the bottom grass growing area 13, and a cap 19 is installed at one end of the water pipe 18, the cap 19 is rotatably connected to the outer ring of the water pipe 18, and the inner wall of the cap 19 is detachably connected with a filter screen, which is used to filter soil to prevent soil loss, and there are four groups of water guide plates 14 per layer.

[0044] The compressive strength (Mpa) and water permeability (%) of the growth racks prepared in the above-mentioned Examples 1 to 3 were tested, and grass seeds were sprinkled on them through the same soil laying scheme and maintained for 30 days under the same environment. The survival rate of the grass seeds is shown in the following table:

[0045]

[0046]

[0047] It can be seen from the above table that the growth frame prepared in Example 3 of this solution has high compressive strength, high water permeability, and high grass seed survival rate. Therefore, Example 3 of this solution is the best solution.

[0048] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. The construction method of the mixed greening concrete with grass and trees and shrubs includes the following steps: S1. Concrete mix ratio: prepare the following raw materials by weight for concrete modeling: 80-90 parts of crushed stone, 6-12 parts of cement, 1.5-3.5 parts of water retaining agent, 0.5-1.5 parts of accelerating agent, 0.6-0.8 parts of wood fiber, 0.1-0.3 parts of lime powder, 3-9 steel bars, and the rest is water; S2, concrete mold forming: the prepared raw materials are molded into a growth frame body (1), and the mold is removed after standing for 46 hours; S3, model processing: After the formation, the growth frame body is provided with water-permeable hole 1, water-permeable hole 2 and water-permeable hole 3, and the inner circles of water-permeable hole 1, water-permeable hole 2 and water-permeable hole 3 are polished, the growth frame body includes a shrub growth area, a grass growth area 1 and a grass growth area 2, a water guide plate is arranged on one side of the shrub growth area, the other end of the water guide plate is connected to the grass growth area 2, a water-permeable hole 2 is arranged on one side of the water guide plate, a plurality of water-permeable holes 1 are arranged on the shrub growth area, and a water-permeable hole 3 is arranged at the bottom of the grass growth area 2; S4, planting plants: laying soil and nutrients required for the growth of grass and shrubs in the growth frame body, planting trees and shrubs in the shrub growth area, and sowing grass seeds in the grass growth area 1 and the grass growth area 2; The particle size of the crushed stone is 4-8 mm, the cement is C25 type, and the water retaining agent is starch grafted acrylate, specifically starch, acrylate, water and cross-linking agent, the mass ratio of starch, acrylate, water and cross-linking agent is (1.2-1.3): (0.5-0.7): (0.35-0.3 6): (0.9-0.12), and the cross-linking agent is triallyl; The quick-setting agent is alumina clinker, the wood fiber is a combination of rice straw and wheat straw, and the steel bar is any one of HRB400 and RRB400; The grass growing area 2 and the grass growing area 1 have multiple layers, and a water pipe is fixedly arranged on one side of the grass growing area 2 at the bottom layer, and a cap is installed at one end of the water pipe, and the cap is rotatably connected to the outer ring of the water pipe; The inner wall of the cap is detachably connected with a filter screen, which is used to filter soil and prevent soil loss. There are four groups of water guide plates on each layer.

2. The construction method of grass and tree and shrub mixed greening concrete according to claim 1, characterized in that: S1 includes the following raw materials in parts by weight: 80 parts of crushed stone, 6 parts of cement, 1.5 parts of water retaining agent, 0.5 parts of accelerating agent, 0.6 parts of wood fiber, 0.1 parts of lime powder, 3 steel bars, and the rest is water.

3. The construction method of grass and tree and shrub mixed greening concrete according to claim 1, characterized in that: S1 includes the following raw materials by mass: 90 parts of crushed stone, 12 parts of cement, 3.5 parts of water retaining agent, 1.5 parts of accelerating agent, 0.8 parts of wood fiber, 0.3 parts of lime powder, 9 steel bars, and the rest is water.

4. The construction method of grass and tree and shrub mixed greening concrete according to claim 1, characterized in that: S1 includes the following raw materials by mass: 85 parts of crushed stone, 9 parts of cement, 2.5 parts of water retaining agent, 1 part of accelerating agent, 0.7 parts of wood fiber, 0.2 parts of lime powder, 6 steel bars, and the rest is water.

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