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A kind of porous ecological concrete planting substrate and its preparation method and application

A technology of ecological concrete and planting base material, which is applied to the field of porous ecological concrete planting base material and its preparation, can solve the problems of poor filling and low adhesion of porous ecological concrete, and can inhibit the growth of pathogenic bacteria, be easy to fill, and promote plant growth. Effect

Active Publication Date: 2020-05-05
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the prior art, natural soil is often used to prepare planting substrates, but its adhesion is low, and the filling performance for porous ecological concrete is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Raw material selection:

[0024] The water-retaining agent is sodium polyacrylate; the fertilizer-retaining material is perlite; the organic fertilizer is earthworm feces; the agricultural bacteria agent is Bacillus megaterium; the pH regulator is acetic acid slag.

[0025] Preparation and application:

[0026] According to the design thickness of porous concrete, choose to make ecological concrete with a thickness of 100mm. The aggregate particle size is 20-30mm. Ordinary Portland cement 42.5R is used, the water-cement ratio is 0.28, and the curing is about 15 days. The sludge is subjected to soil treatment, and the mass ratio of the components is: sludge:lime:fly ash:bentonite=500:60:70:20, and the planting substrate is prepared after natural air drying. Dilute the agricultural agent with tap water at 1:150 times, store it for 24 hours; then turn it into soil sludge: water retaining agent: organic fertilizer: fertilizer preserving material: agricultural bacteria: pH ...

Embodiment 2

[0028] Raw material selection:

[0029] The water-retaining agent is superabsorbent resin; the fertilizer-retaining material is vermiculite powder; the organic fertilizer is cooked chicken manure; the agricultural bacteria agent is Bacillus licheniformis; the pH regulator is aluminum sulfate.

[0030] Preparation and application:

[0031] According to the design thickness of porous concrete, choose to make ecological concrete with a thickness of 100mm. The aggregate particle size is 20-30mm. Ordinary Portland cement 42.5R is used, the water-cement ratio is 0.28, and the curing is about 15 days. The sludge is subjected to soil treatment, and the mass ratio of the components is: sludge:lime:fly ash:bentonite=550:50:70:22, and the planting substrate is prepared after natural air drying. According to 1:500 times of tap water to dilute the agricultural agent, store it for 24 hours; then according to the soil sludge: water retaining agent: organic fertilizer: fertilizer material: a...

Embodiment 3

[0033] Raw material selection:

[0034] The water-retaining agent is a mixture of sodium polyacrylate and superabsorbent resin; the fertilizer-retaining material is a mixture of perlite and vermiculite powder; the organic fertilizer is a mixture of earthworm manure, cooked chicken manure, straw or various peels; the agricultural agent is yeast; The pH regulator is a mixture of acetic acid slag humus and plant ash.

[0035] Preparation and application:

[0036] According to the design thickness of porous concrete, choose to make ecological concrete with a thickness of 100mm. The aggregate particle size is 20-30mm. Ordinary Portland cement 42.5R is used, the water-cement ratio is 0.28, and the curing is about 15 days. The sludge is subjected to soil treatment, and the mass ratio of the components is: sludge:lime:fly ash:bentonite=600:55:70:18, and the planting substrate is prepared after natural air drying. Dilute the agricultural bacteria agent with tap water at 1:320 times, ...

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Abstract

The invention discloses a porous ecological concrete planting matrix and a preparation method and application thereof. The planting matrix is mainly prepared from soil silt, a water-retaining agent, a fertilizer-maintaining material, an organic fertilizer, an agricultural fungicide and a ph regulator, wherein the mass ratio of the soil silt to the water-retaining agent to the organic fertilizer to the fertilizer-maintaining material to the agricultural fungicide to the ph regulator is (700-800):(1.4-4):(35-120):(35-80):(8-12):(7-8). Compared with the prior art, the porous ecological concrete planting matrix disclosed by the invention has the advantages that the soil silt is used for replacing the natural soil, and the purpose of turning waste into wealth is achieved; the agricultural fungicide is added into the planting matrix, so that the propagation of pathogenic bacteria can be effectively restrained, phosphorus and potassium can be dissolved while nitrogen is fixed, the plant growth can be promoted, and the planting matrix is green and environment-friendly; and the soil ph regulator can neutralize the alkalinity in the concrete so as to endow the plant with the optimal growth environment condition.

Description

technical field [0001] The invention discloses a porous ecological concrete planting substrate, a preparation method and application thereof, and belongs to the technical field of concrete planting substrates. Background technique [0002] Porous ecological concrete is a special functional building material with a porous structure made of coarse aggregate covered with a layer of cement slurry on the surface. There are a large number of continuous pores inside and low-alkali properties. Utilizing the large pores and porous structure of this material, it can smoothly circulate the water, air, heat, fertilizer and other substances needed for plant growth, so plants can grow normally in its pores. The plant roots go deep into the soil layer through the concrete matrix, which can not only continuously absorb nutrients in the underlying soil, but also protect the stability of the slope by using the mechanical properties of shallow root reinforcement and deep root anchorage of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G24/00A01G24/20A01G24/10A01G22/00
CPCA01G22/00A01G24/00
Inventor 祝建中胡洁方园园徐菲菲陈立
Owner HOHAI UNIV
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