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A kind of phosphogypsum-based vegetation concrete and its construction method

A technology of planting concrete and phosphogypsum, applied in botany equipment and methods, planting substrates, infrastructure engineering, etc., can solve problems such as land occupation and environmental pollution, achieve energy saving and environmental protection costs, eliminate environmental hazards, and improve performance.

Active Publication Date: 2020-09-08
重庆市建筑科学研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Stacking phosphogypsum not only takes up a lot of land, but also causes serious environmental pollution. Therefore, it is necessary to find a reasonable way to use phosphogypsum in order to achieve sustainable development of the phosphate fertilizer industry and high utilization of phosphogypsum

Method used

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  • A kind of phosphogypsum-based vegetation concrete and its construction method
  • A kind of phosphogypsum-based vegetation concrete and its construction method
  • A kind of phosphogypsum-based vegetation concrete and its construction method

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Experimental program
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Effect test

Embodiment

[0046] According to the above steps 1 and 2, 26 groups of equal amounts of phosphogypsum-based vegetation concrete were prepared, and 5 groups of control groups were prepared. The specific formula of each group is shown in Table 1.

[0047] Table 1 The specific formula of each group

[0048]

[0049]

[0050]

[0051] 2. Select the grass species as ryegrass, and the grass species content is 90g / m2 2 , after preparing the base layer phosphogypsum-based vegetation concrete slurry and the surface layer phosphogypsum-based vegetation concrete slurry, spray according to the method of step 3. Straw is tied on the barbed wire, the spacing between adjacent straws is 30cm, and the width between the nets is 15cm. The average thickness of the base layer concrete is 7cm, and the average thickness of the surface layer concrete is 3cm.

[0052] 3. The construction time is selected from March to June, and the average outdoor temperature is 10 to 23 °C. After one week of spraying, t...

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Abstract

The present invention belongs to the technical field of water and soil protection, and particularly relates to phosphogypsum-based vegetation concrete and a construction method thereof. The specific technical solution is as follows: the phosphogypsum-based concrete comprises phosphogypsum, soil, rice husk ash, humic acid, a retarder, plant fibers, brucite fibers, a water retaining agent and water.A large amount of the phosphogypsum and rice husk ash are used; high bonding strength between the concrete and slopes is high; anti-pressure and anti-tensile abilities are strong; an anti-erosion ability is strong; the phosphogypsum-based vegetation concrete also provides nutrient elements required for growth of various surface layer grass seeds; the humic acid further helps quick ecological recovery; and long fibers and short fibers are also combined to improve the own performance of the concrete, help vegetation to grow rapidly and exist for more than ten years or even decades, continuouslystrengthen and toughen the concrete, and improve the crack resistance and durability of the concrete.

Description

technical field [0001] The invention belongs to the technical field of soil and water protection, and particularly relates to a phosphogypsum-based vegetation concrete and a construction method thereof. Background technique [0002] In recent years, in the construction of water conservancy, electric power, highway, railway and other infrastructure projects, a large number of slopes are often excavated. The development of the slope has destroyed the original vegetation cover, resulting in a large number of rocks and land being exposed, resulting in a series of ecological environment imbalance problems, such as soil erosion, landslides, debris flows, deterioration of local microclimates and destruction of biological chains, etc. . The exposed slopes caused by these projects often take a long time to restore the ecological balance if only relying on the forces of nature. Soil slopes can achieve ecological restoration in a short time through artificial protection and greening,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14A01G24/10A01G24/25A01G24/20A01G24/22A01G24/35A01G22/00E02D17/20E02B3/12
CPCA01G22/00A01G24/10A01G24/20A01G24/22A01G24/25A01G24/35C04B28/143E02B3/128E02D17/20C04B14/361C04B18/101C04B24/24C04B24/06C04B14/46C04B24/2652C04B22/002C04B18/24
Inventor 李志坤吴仕美尹亚柳何晖宋开伟
Owner 重庆市建筑科学研究院有限公司
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