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Construction waste artificial soil

A technology for artificial soil and construction waste, applied in planting substrates, horticulture, botanical equipment and methods, etc., to achieve the effects of reducing raw material costs, reducing pollution, and improving strength

Inactive Publication Date: 2019-12-20
GUANGDONG TSINGDA TONGKE ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above technical problems, the present invention provides an artificial soil for construction waste, which can not only effectively alleviate the problem of construction waste pollution, but also provide an artificial soil with three functions of water retention, fertilizer retention and ventilation

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0034] A construction waste artificial soil is prepared by the following method:

[0035] (1) Take 100 parts of construction waste powder, 10 parts of calcined kaolin, 15 parts of slag, 40 parts of phosphogypsum, and 10 parts of steel slag and mix them uniformly in a mixer to obtain a mixture for use;

[0036] (2) Pour the mixture into the ceramic sand high-speed granulator, and spray 30 parts of water while granulating at a speed of 20m / s;

[0037] (3) Put the prepared grains into a curing box with a temperature of 40° C. and a humidity of 90% for curing for one day; after the cured grains are sieved, artificial soil meeting the particle size requirement is obtained.

[0038] The chemical composition of construction waste powder in the present embodiment is: SiO 2 52wt%, Al 2 o 3 12wt%, CaO15wt%, MgO 2wt%, Fe 2 o 3 5wt%, K 2 O 1wt%, loss on ignition 13wt%.

[0039] Take 400mL of the artificial soil prepared above and spread it in a 500mL flowerpot, insert the garlic...

Embodiment 2

[0041] A construction waste artificial soil is prepared by the following method:

[0042] (1) Take by weighing 100 parts of construction waste powder, 5 parts of bentonite, 10 parts of slag, 20 parts of phosphogypsum, and 10 parts of steel slag and mix them uniformly in a mixer to obtain a mixture for use;

[0043] (2) Pour the mixture into the ceramic sand high-speed granulator, and spray 25 parts of water while granulating at a rotating speed of 50m / s;

[0044](3) Put the prepared grains into a curing box with a temperature of 25° C. and a humidity of 80% for curing for 3 days; after the cured grains are sieved, artificial soil meeting the particle size requirement is obtained.

[0045] The chemical composition of construction waste powder in the present embodiment is: SiO 2 50wt%, Al 2 o 3 12wt%, CaO18wt%, MgO 2wt%, Fe 2 o 3 4wt%, K 2 O 3wt%, loss on ignition 11wt%.

[0046] Take 400mL of the artificial soil prepared above and spread it in a 500mL flowerpot, inser...

Embodiment 3

[0048] A construction waste artificial soil is prepared by the following method:

[0049] (1) Take by weighing 100 parts of construction waste powder, 20 parts of slag, 30 parts of phosphogypsum, and 5 parts of steel slag and mix them uniformly in a mixer to obtain a mixture for use;

[0050] (2) Pour the mixture into the ceramic sand high-speed granulator, and spray 20 parts of water while granulating at a speed of 20m / s;

[0051] (3) Put the prepared grains into a curing box with a temperature of 40° C. and a humidity of 90% for curing for one day; after the cured grains are sieved, artificial soil meeting the particle size requirement is obtained.

[0052] The chemical composition of construction waste powder in the present embodiment is: SiO 2 55wt%, Al 2 o 3 10wt%, CaO12wt%, MgO 5wt%, Fe 2 o 3 3wt%, K 2 O 2wt%, loss on ignition 13wt%.

[0053] Take 400mL of the artificial soil prepared above and spread it in a 500mL flowerpot, insert the garlic in the artificial...

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Abstract

The invention relates to the technical field of planting substrates, in particular to construction waste artificial soil. The construction waste artificial soil is prepared from, by weight, 100 partsof construction waste powder, 0-10 parts of a plasticizer, 10-20 parts of mineral slag, 20-40 parts of ardealite, 5-10 parts of steel slag and 15-30 parts of water. According to the construction wasteartificial soil, construction waste, the ardealite, the steel slag, the mineral slag and other solid wastes are utilized as main raw materials which reduce the pollution to the environment, an effective resource reuse way is also provided, and the cost of the raw materials is also reduced; in addition, the larger specific surface area and porous structure of the construction waste are fully utilized, and good water retention and fertilizer retention functions are given to the artificial soil; the active materials of the steel slag and mineral slag are added to be subjected to a hydration reaction with gypsum, limestone and other substances to form a sclerotium, which improves the strength of the artificial soil. The artificial soil has excellent water retention, fertilizer retention and gas permeability, and can be used as a cultivation substrate instead of soil for crop planting.

Description

technical field [0001] The invention relates to the technical field of planting substrates, in particular to a construction waste artificial soil. Background technique [0002] With the continuous development and advancement of my country's real estate industry, traffic roads and urbanization process, the generation of construction waste is also growing rapidly, accounting for 30-40% of the total urban waste, and about 600 million tons of construction waste are generated every year. At present, due to problems such as technical costs, it is impossible to efficiently utilize a large amount of construction waste. These construction wastes cannot be decomposed under natural conditions, resulting in pollution of water bodies and soils. At the same time, a large amount of dust is generated, which poses a great threat to human health and wastes resources. . Therefore, the efficient reuse of construction waste is imminent. [0003] On the other hand, in the rapid construction of ci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G24/10A01G24/17A01G24/15A01G24/42
CPCA01G24/10A01G24/15A01G24/17A01G24/42
Inventor 赵凯黄文海
Owner GUANGDONG TSINGDA TONGKE ENVIRONMENTAL PROTECTION TECH CO LTD
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