A kind of grass-planting concrete structure based on herbaceous root system structure and its preparation method

A root system configuration, concrete technology, applied in the direction of fertilizer mixture, application, potassium fertilizer, etc., can solve the problems of reduced compressive and flexural strength, inability to adapt to plants, weakened overall performance, etc.

Active Publication Date: 2021-04-27
NANCHANG INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, compared with the herbs that grow naturally in the soil environment, grass-planted concrete has a special random pore structure, which has a certain restrictive effect on the growth of herbs.
The mechanical strength and structural pores of grass-planting concrete are contradictory. When the particle size and pores are large, although it is beneficial to plant growth, the compressive and flexural strength will decrease; the particle size is small, the pores are small, and the strength increases. Large but unable to meet the needs of plant root growth, which reduces the survival rate and growth vigor of herbs, and weakens the overall performance of the "herb-concrete-soil complex"

Method used

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  • A kind of grass-planting concrete structure based on herbaceous root system structure and its preparation method
  • A kind of grass-planting concrete structure based on herbaceous root system structure and its preparation method
  • A kind of grass-planting concrete structure based on herbaceous root system structure and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] For herbaceous plants with long fibrous roots, such as vetiver and goosegrass, there is no obvious tap root type, and the root density of the root system is concentrated within 40cm. The distribution of fibrous roots within the thickness of the grass planting concrete is relatively uniform except for the upper layer.

[0039] The total thickness of the grass planting concrete is 12cm, which is divided into 2 layers, the upper layer is 4cm, and the lower layer is 8cm.

[0040] figure 1 Among them, the upper layer 1 is a grass-planting concrete layer of large-size coarse aggregate, and the lower layer 4 is a grass-planting concrete layer of medium and small-size coarse aggregate. The grass body 7 is planted on the grass-planting concrete 8, and the long root system 10 passes through the pores 9 of the grass-planting concrete. The lower layer of the permeable grass concrete enters the soil layer 11.

[0041] The porosity of the grass-planting concrete in the upper layer 1...

Embodiment 2

[0044] For herbaceous plants with short fibrous roots, such as bermudagrass and tall fescue, the root number density of the root system is concentrated in the range of 2-6cm.

[0045] The total thickness of the grass-planting concrete is 13cm, and it is divided into three layers. The layer thicknesses are 4cm for the upper layer, 6cm for the middle layer, and 3cm for the lower layer.

[0046] figure 2In the middle, the upper layer 1 is a grass-planting concrete layer of large particle size coarse aggregate, the middle layer 2 is a grass planting concrete layer of medium particle size coarse aggregate, and the lower layer 3 is a grass planting concrete layer of small particle size coarse aggregate, and the grass body 7 is planted on the grass planting concrete layer. The concrete 8 and the short herb root system 10 pass through the pores 9 of the grass-planting concrete, and partly penetrate the lower layer of the grass-planting concrete and enter the soil layer 11 .

[0047]...

Embodiment 3

[0050] Targets taprooted herbs such as alfalfa. The root number density of the root system is concentrated in the range of 0-10cm.

[0051] The total thickness of the grass-planting concrete is 15cm, and it is divided into 4 layers. The thickness of each layer is 5cm for the upper layer, 4cm for the upper middle layer, 4cm for the lower layer, and 2cm for the bottom layer.

[0052] image 3 Among them, the upper layer 1 is the grass-planting concrete layer of large particle size coarse aggregate, the middle and upper layer 5 is the grass planting concrete layer of medium particle size coarse aggregate, the middle and upper layer 6 is the grass planting concrete layer of medium particle size coarse aggregate, and the lower layer 3 is the grass planting concrete layer of medium particle size coarse aggregate. The grass-planting concrete layer of coarse aggregate is planted by the grass body 7 on the grass-planting concrete 8, and the short root system 10 of the herb passes thro...

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Abstract

The invention discloses a grass-planting concrete structure based on the herbaceous root system configuration and a preparation method thereof. The grass-planting concrete is composed of a multi-layer structure of grass-planting concrete, and is divided into 2-4 layers according to the natural growth law of root system density and root diameter, and the total thickness The porosity of grass-planting concrete is in the range of 10-35%. Grass planting concrete is prepared from the following raw materials by weight: 113-313 parts of cement, 1421-1568 parts of coarse aggregate, 113-313 parts of fine aggregate, 2-10 parts of strengthening agent, and 0.23 parts of water reducing agent. 0.63 parts, water 29-95 parts. The preparation method of the present invention is comprehensively considered from the perspectives of mesoscopic structural characteristics and vegetation physiological growth characteristic parameters, which helps to provide scientific and good growth space and growth conditions for the growth of plant roots, and improves the growth vigor and coverage of herbal plants in concrete. Improve the tensile, flexural, bending and anti-filtration properties of concrete to form a "herb-concrete-soil" complex that adapts to the natural growth laws of plants.

Description

technical field [0001] The invention relates to ecological engineering technology, in particular to a grass-planting concrete structure based on the configuration of the herb root system and a preparation method thereof following the natural growth law of the herb root system. Background technique [0002] Under the background of the extremely arduous task of ecological construction in our country, it is more and more urgent to apply biological measures to ecological protection of engineering measures. Therefore, the promotion and application of ecological technologies and products combining concrete and herbal plants has great application prospects, space and markets. . [0003] Since the 1990s, the Japan Concrete Engineering Association has proposed the concept of ecological concrete. At present, scholars are mainly conducting research on the macroscopic physics, mechanics and planting performance of grass-planted concrete. The so-called grass-planting concrete is a kind ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C05G1/00
CPCC04B28/04C04B2111/00758C05D1/00C04B14/02C04B14/06C04B24/281C04B24/283C04B24/24C04B2103/302C04B14/361C04B18/101C04B2103/0068C05D9/00C05G1/00
Inventor 江辉刘瑶程洪甘建军胡盛明孙笑
Owner NANCHANG INST OF TECH
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