Ecological concrete containing nutritional base material particles and preparation method thereof

An ecological concrete and nutrient-based technology, applied in ceramic products, fertilizer mixtures, other household appliances, etc., can solve the problems of inconspicuous ecological performance of ecological concrete, loss of soil and nutrients, plant re-germination and growth difficulties, etc. The effect of long-term dependent growth improvement, good fertilizer effect slow release performance, good water retention and moisture retention ability

Pending Publication Date: 2022-05-27
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, ecological concrete has been promoted and applied in many cities, but the ecological performance of ecological concrete is still not obvious
The traditional ecological concrete is made of a macroporous structure skeleton, and the internal pore structure can provide space for plants to grow and take root. However, since the structure of the ecological concrete itself cannot provide suitable habitat conditions for the growth of plants, it has to rely on the internal ecological concrete in the later stage. Provide habitat conditions for vegetation growth by filling soil and supplementing nutrients
The traditional ecological concrete has strong water permeability, but the porosity between the aggregates is high, and the concrete strength is low. It is easy to be damaged when it is used in the harsh environmental conditions such as reservoir banks and water-fluctuation zones that have been washed and scoured by water for a long time. , and the soil and nutrients filled inside will be lost in large quantities, making it difficult for plants to germinate and grow

Method used

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  • Ecological concrete containing nutritional base material particles and preparation method thereof
  • Ecological concrete containing nutritional base material particles and preparation method thereof
  • Ecological concrete containing nutritional base material particles and preparation method thereof

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preparation example Construction

[0041]In addition, the present invention also discloses the preparation method of the above-mentioned ecological concrete containing nutrient substrate particles, which comprises the following steps:

[0042] S1. Take various raw materials for preparing nutrient substrate particles, and mix them thoroughly to obtain a mixture;

[0043] S2, adding the mixture in step S1 into water and stirring evenly and then performing a granulation process to form nutrient substrate particles;

[0044] S3, curing the prepared nutrient substrate particles; in this embodiment, the nutrient substrate particles after granulation and curing should have high strength, and the breakage rate during the mixing process of ecological concrete raw materials is not higher than 5 %, it is not easy to disintegrate under the action of water immersion and scouring, and the internal nutrients are not easy to lose. The granulated nutrient substrate granules should be cured for 3 to 28 days, and the curing humi...

Embodiment 1

[0055] The preparation process and method of the nutrient substrate particles are as follows:

[0056] (1) Select the weathered laterite, dry it in the sun and pulverize it, and sieve it through a fine sieve to obtain slightly acidic soil matrix powder.

[0057] (2) after the sawdust and coconut shell crushed powder are mixed according to 1:1, they are mixed with the humus nutrient soil obtained by fermentation, and the mixing ratio is the organic matter powder: the nutrient soil is 1:3 to obtain the plant organic matter powder rich in organic matter.

[0058] (3) Take 60 parts of the screened soil matrix, 20 parts of plant organic matter powder, 6 parts of slow-release organic fertilizer, acid-base regulator (2 parts of superphosphate fertilizer, 2 parts of ferrous sulfate), water retention agent (polymer water absorption Resin (SPA)) 0.1 part, mix the materials evenly to obtain the mixture containing the nutrient base material for use;

[0059] (4) mixing the mixture prepar...

Embodiment 2

[0080] (1) Adjusting the ratio of sawdust and coconut shell components in Example 1, adding 0.5 part of solid sodium silicate, or adding 10 parts of polyvinyl acetate emulsion as a gelling material, can prepare a suitable nutritional substrate bone It shows that the organic matter and binder in the nutrient substrate particles have relatively wide sources, flexible ingredients and good adaptability. The actual measurement shows that after adjusting the mass ratio of sawdust and coconut shell components to be 2:1, the bulk density of the nutrient base aggregate particles in this example is reduced to 650kg / m 3 . The pH value of the nutrient-based aggregate particles is 8.56, the average 28d splitting compressive strength is 0.44MPa, the impact crushing rate is less than 3%, the water absorption rate is 42.0%, the water stability is still good, and the particle strength and hardness are high, which meets the ecological requirements. Concrete preparation requirements.

[0081] ...

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Abstract

The invention discloses ecological concrete containing nutritional base material particles and a preparation method of the ecological concrete. The ecological concrete comprises the following raw materials in parts by weight: 0-15 parts of fine aggregate; 50 to 85 parts of coarse aggregate; 5-35 parts of nutritional base material particles; 15 to 25 parts of cement; 0-8 parts of fly ash; 0.3 to 0.5 part of a water reducing agent; 4 to 10 parts of water; nutrition base material particles are doped into the ecological concrete, the strength and the erosion resistance of the ecological concrete can be improved under the condition that the porosity among ecological concrete aggregates is small, meanwhile, the ecological concrete has the good fertilizer efficiency slow release performance, the good water retention and soil moisture preservation capacity and the suitable internal alkaline environment, and the ecological concrete has the good water retention and soil moisture preservation performance. The purposes of long-term plant attachment growth and ecological environment improvement in a small-pore environment are achieved.

Description

technical field [0001] The invention relates to the technical field of environmental protection building materials, in particular to an ecological concrete containing nutrient substrate particles and a preparation method thereof. Background technique [0002] Ecological concrete should have the basic strength, durability and other index requirements of ordinary concrete, and meet the functional requirements of urban ground hardening and slope protection; ecological concrete should also have certain water permeability, create certain environmental conditions for plant growth, and provide plants The space required for growth; through certain planting process measures, the ecological concrete can maintain a certain amount of water and nutrients, promote the growth of plants, and improve the ecological environment of the city. [0003] At present, ecological concrete has been promoted and applied in many cities, but the ecological performance of ecological concrete is still not ...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B14/02C04B38/00C05G3/00C05G3/40C05G3/80C04B111/40C04B111/20
CPCC04B28/04C04B14/02C04B38/00C05B1/02C05G3/00C05G3/40C05G3/80C04B2201/50C04B2111/20C04B2111/40C04B2111/00732C04B18/08C04B14/06C04B2103/302C05D9/02C05F11/00C05F11/02Y02W30/91
Inventor 雷进生刘金鑫王乾峰周珂刘婉纯
Owner CHINA THREE GORGES UNIV
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