Coral sand improved matrix, improved coral sand and application of improved coral sand

A technology of coral sand and matrix, applied in application, other chemical processes, silicates, etc., can solve the problems of poor pressure bearing performance and water retention effect of coral sand, achieve excellent desalination performance, increase content, and good water retention performance.

Pending Publication Date: 2022-05-13
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above prior art, the present invention provides an improved substrate for coral sand, improved coral sand and its application to solve the technical problems of poor pressure bearing performance and water retention effect of coral sand

Method used

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  • Coral sand improved matrix, improved coral sand and application of improved coral sand
  • Coral sand improved matrix, improved coral sand and application of improved coral sand

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A coral sand improved substrate, comprising the following components by mass:

[0032] 15 parts of modified absorbent fiber cotton, 10 parts of aluminosilicate, 2 parts of flocculant, 5 parts of coconut shell powder, 3 parts of soil structure stabilizer and 30 parts of bentonite; the soil structure stabilizer consists of carboxymethyl cellulose and polyacrylic acid Ammonium is mixed at a mass ratio of 1:2.

[0033] Wherein, the modified fiber cotton is obtained through the following steps:

[0034] S1: Mix acrylic acid, polyethylene glycol 600, polyurethane emulsion, water-based epoxy resin emulsion and water in a mass ratio of 10:6:5:4:30, and mix well to obtain a modified solution;

[0035] S2: Submerge the porous fiber cotton with a diameter of 4 μm in the modification solution, ultrasonically treat it at a frequency of 25 kHz for 1 hour, then take it out, air-dry it, and pulverize it.

[0036] Aluminosilicates are prepared by the following steps:

[0037] S1: Mix...

Embodiment 2

[0046] A coral sand improved substrate, comprising the following components by mass:

[0047] 10 parts of modified absorbent fiber cotton, 15 parts of aluminosilicate, 1 part of flocculant, 10 parts of coconut shell powder, 2 parts of soil structure stabilizer and 40 parts of bentonite; the soil structure stabilizer consists of carboxymethyl cellulose and polyacrylic acid Ammonium is mixed at a mass ratio of 1:1.

[0048]Wherein, the modified fiber cotton is obtained through the following steps:

[0049] S1: Mix acrylic acid, polyethylene glycol 600, polyurethane emulsion, water-based epoxy resin emulsion and water at a mass ratio of 8:8:4:5:25, and mix well to obtain a modified solution;

[0050] S2: Submerge the porous fiber cotton with a diameter of 3 μm in the modification solution, ultrasonically treat it at a frequency of 20 kHz for 1 hour, then take it out, air-dry it, and pulverize it.

[0051] Aluminosilicates are prepared by the following steps:

[0052] S1: Mix s...

Embodiment 3

[0061] A coral sand improved substrate, comprising the following components by mass:

[0062] 20 parts of modified absorbent fiber cotton, 8 parts of aluminosilicate, 3 parts of flocculant, 5 parts of coconut shell powder, 5 parts of soil structure stabilizer and 20 parts of bentonite; the soil structure stabilizer consists of carboxymethyl cellulose and polyacrylic acid Ammonium is mixed at a mass ratio of 1:3.

[0063] Wherein, the modified fiber cotton is obtained through the following steps:

[0064] S1: Mix acrylic acid, polyethylene glycol 600, polyurethane emulsion, water-based epoxy resin emulsion and water at a mass ratio of 12:5:6:3:35, and mix well to obtain a modified solution;

[0065] S2: Submerge the porous fiber cotton with a diameter of 5 μm in the modification solution, ultrasonically treat it at a frequency of 30 kHz for 0.5 h, then take it out, air-dry it, and pulverize it.

[0066] Aluminosilicates are prepared by the following steps:

[0067] S1: Mix s...

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Abstract

The invention discloses a coral sand improved matrix, improved coral sand and application of the improved coral sand. The improved coral sand matrix comprises modified water-absorbing fiber cotton, aluminosilicate, a flocculating agent, coconut shell powder, a soil structure stabilizer and bentonite. The improved coral sand comprises a coral sand improved matrix and coral sand. After the coral sand is modified by adopting the modified matrix, the compactness of the coral sand is remarkably improved, after the modified coral sand is used as an island building material to build an island, the stability of a pile foundation is guaranteed, and the obtained modified coral sand has excellent desalting performance and good water retention performance. The desalination performance can desalinate the infiltrated seawater, so that fresh water which can be utilized by vegetation is formed in the artificial island stratum, and formation of natural vegetation on the ground surface is facilitated; and the water retention performance can lock infiltrated rainwater during rainfall, so that the formation of an underground fresh water lenticular body of the artificial island is accelerated, and the content of underground fresh water is increased. The application of the improved coral sand is favorable for promoting formation of a fresh water ecological system of the island reef.

Description

technical field [0001] The invention belongs to the technical field of coral reef soil texture improvement, and in particular relates to a coral sand improvement matrix, improved coral sand and applications thereof. Background technique [0002] In recent years, the development trend of countries towards the sea is obvious, and blowing sand to build islands has become an important means for people to effectively use the ocean to seek living space and develop marine resources. The islands in the South my country Sea are mainly coral islands and reefs, the surface layer of which is late-formed, loose uncemented or weakly cemented coral and bioclastic sand layers. Coral sand has become the main source of dredging and filling materials for artificial island construction. A large number of studies have shown that due to the inherent characteristics of biogenic coral sand, such as fragility, porosity, and high compression, it has brought many disadvantages to the construction of a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C01B33/26D06M15/55D06M15/53D06M15/564D06M13/203C08F220/56C08F220/06C09K103/00C09K107/00D06M101/06
CPCC09K17/40D06M15/55D06M15/53D06M15/564D06M13/203C08F220/56C01B33/26C09K2103/00C09K2107/00D06M2101/06C08F220/06
Inventor 李海英黄真理王鲁海卢佳任家盈
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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