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Plant-growing concrete plant growing-suitable materials and use thereof

A technology of planting concrete and porous concrete core, applied in the direction of application, fertilizer mixture, fertilization device, etc., to achieve low cost, ensure normal growth, and good perfusion effect

Inactive Publication Date: 2009-03-11
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effects described by this patented technology are that it provides an effective way to deliver both water (water) and fertilizers into cement without adding any extra materials or equipment like pumps). This makes growing crops more efficient while also ensuring they receive proper amounts of these substances during their life cycle.

Problems solved by technology

This patented describes how plants have developed naturally from their root systems through an environmental problem called erosion caused by excessive use of calcium carbonate (CaCO2) cemented into rocks during construction work. To prevent this damage, researchers found that adding specific types of substances like bentonite clay could help maintain proper hydrations within these holes while still allowing enough moisture/water to reach them throughout its life cycle. However, current methods cannot accurately control the size distribution of the pore sizes required for optimal growing conditions without causing significant losses due to overfillings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] According to the design thickness of porous concrete, use DN160 PVC downpipe to cut 20 short pipes with a length of 150mm, and use them as outer molds to pour a standard porous concrete core with a thickness of 90mm. The aggregate particle size is 20-25mm, and ordinary 42.5 Portland cement is used. The water-cement ratio is 0.3 (weight ratio, the same below), and the gray-bone ratio is 1:8. After 15 days of curing at room temperature, it is first sprayed with tap water, and then sprayed with 10% oxalic acid solution to reduce the alkalinity of the porous concrete to below pH 10. Put pond mud, peat soil, sawdust, water-retaining agent polyacrylamide, slow-release fertilizer (lawn control fertilization) , produced by Shenzhen Batian Ecological Engineering Co., Ltd.) are mixed according to the weight ratio of 600:380:15:3:0.4, and 20% of the total weight of suitable raw materials is added to the paste. Spread the above-mentioned pasty suitable material on the surface of th...

Embodiment 2

[0022] According to the design thickness of porous concrete, use DN200 PVC downpipes to cut 10 short pipes with a length of 150 mm, and use them as outer molds to cast a standard porous concrete core with a thickness of 90 mm. The aggregate particle size is 20-25 mm, and ordinary 42.5 Portland cement is used. , the water-cement ratio is 0.3 (weight ratio, the same below), and the gray-bone ratio is 1:8. After curing at room temperature for 18 days, it is first sprayed with tap water, and then sprayed with 15% oxalic acid solution to reduce the alkalinity of the porous concrete to below pH 10. The suitable materials for growth are pond mud, peat soil, wood chips, water-retaining agent polyacrylamide, slow-release fertilizer ( Lawn control fertilization, produced by Shenzhen Batian Ecological Engineering Co., Ltd.) is mixed according to the ratio of 580:400:18:3:0.4 by weight, and 25% of the total weight of suitable materials is added to adjust to a paste. Spread the above-menti...

Embodiment 3

[0026] According to the design thickness of porous concrete, use DN250 PVC downpipes to cut 30 short pipes with a length of 100mm, and use them as outer molds to cast a standard porous concrete core with a thickness of 60mm. The aggregate particle size is 20-25mm, and ordinary 42.5 Portland cement is used. , the water-cement ratio is 0.3 (weight ratio, the same below), the gray-bone ratio is 1:8, and the thickness is 60mm. After curing at room temperature for 20 days, it is first sprayed with tap water, and then sprayed with 12% oxalic acid solution to reduce the alkalinity of porous concrete to below pH 10. Put soil, peat soil, sawdust, water-retaining agent polyacrylamide, slow-release fertilizer (lawn control fertilization, (produced by Shenzhen Batian Ecological Engineering Co., Ltd.) is mixed according to the ratio of 600:380:15:3:0.4 by weight, and 30% of the total weight of suitable raw materials is added to adjust to a paste. Spread the above-mentioned pasty suitable m...

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Abstract

Aiming at the current situation of lacking a plant growth adaptive material which meets the requirement of the perfusion of plant growth concrete and the demand of plant growth in the market, the invention provides a plant growth adaptive material for the plant growth concrete, which is easy to obtain the material, has strong capability for fertilizer and water retention and can effectively act as a plant growth substrate and a specific application method thereof. The plant growth adaptive material provided by the invention comprises pond mud, peaty soil, wood chips, polyacrylamide used as a water retaining agent, a slow-release fertilizer and other compositions. The preferential weight percentage of the pond mud to the peaty soil to the wood chips to the polyacrylamide used as the water retaining agent to the slow-release fertilizer is equal to 500 -600 to 350-400 to 15-20 to 2-3 to 0.3-0.5. The application method has simple operation; and the obtained growth adaptive material has low cost and good perfusion effect, can effectively provide moisture and nutrients needed for plant growth in the plant growth concrete, ensure the normal growth of the plant and achieve good economical and environmental benefits.

Description

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Claims

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Application Information

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Owner SOUTH CHINA UNIV OF TECH
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