Soda residue soil regeneration backfill material and preparation method thereof

A technology for alkaline slag and alkaline slag, which is applied in the field of alkaline slag soil regeneration backfill material and its preparation, can solve the problems of polluted water body and soil, loss of decomposing ability of soil, damage to soil structure, etc. The effect of increasing land use resources and environmental benefits is obvious

Inactive Publication Date: 2020-01-31
POWERCHINA WATER ENVIRONMENT GOVERANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The alkali slag is a highly alkaline substance, and if it is stacked randomly, it is easy for the harmful components in it to penetrate into the groundwater and soil through weat...

Method used

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  • Soda residue soil regeneration backfill material and preparation method thereof
  • Soda residue soil regeneration backfill material and preparation method thereof
  • Soda residue soil regeneration backfill material and preparation method thereof

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preparation example Construction

[0030] Correspondingly, the embodiment of the present application also provides a preparation method of the above-mentioned recycled alkali slag backfill material, and the above-mentioned preparation method includes the following steps:

[0031] Pretreatment of the dregs: stirring the above dregs to make the texture uniform, and removing foreign matter in the above dregs;

[0032] Each component is weighed according to the formula of the above-mentioned alkaline slag soil regeneration backfill material;

[0033] mixing and stirring water and the above-mentioned components to obtain a mixture, wherein the weight of the above-mentioned water accounts for 45%-55% of the total weight of the above-mentioned mixture;

[0034] The above mixture is dehydrated and solidified in the natural environment for 1-3 days to obtain the finished product.

[0035] Optionally, during the preparation process of the above-mentioned alkali dregs soil regenerated backfill material, when the weight o...

Embodiment 1

[0043] Alkali slag soil recycled backfill material and preparation method thereof. Wherein, the formula of the above-mentioned alkaline slag soil regeneration backfill material is as follows:

[0044]

[0045] Wherein, the content of fine-grained clay or silt with a particle size of 3mm in the above-mentioned muck is 30%, and the diameter of the above-mentioned fine gravel is 18mm.

[0046] The preparation method of the above-mentioned alkaline slag soil recycled backfill material comprises the following steps:

[0047] 1) Pre-treating the dregs: stirring the above dregs to make them uniform in texture, and removing foreign matter in the dregs;

[0048] 2) each component is weighed respectively according to the formula of above-mentioned alkali dregs soil regeneration backfill material,

[0049] 3) mixing and stirring water and the above-mentioned components to obtain a mixture, wherein the weight of the above-mentioned water accounts for 50% of the total weight of the ab...

Embodiment 2

[0053] Alkali slag soil recycled backfill material and preparation method thereof. Wherein, the formula of the above-mentioned alkaline slag soil regeneration backfill material is as follows:

[0054]

[0055] Wherein, the content of fine-grained clay or silt with a particle size of 3mm in the above-mentioned muck is 60%, and the diameter of the above-mentioned fine gravel is 20mm.

[0056] The preparation method of the above-mentioned alkaline slag soil recycled backfill material comprises the following steps:

[0057] 1) Pre-treating the dregs: stirring the above dregs to make them uniform in texture, and removing foreign matter in the dregs;

[0058] 2) each component is weighed respectively according to the formula of above-mentioned alkali dregs soil regeneration backfill material,

[0059] 3) mixing and stirring water and the above-mentioned components to obtain a mixture, wherein the weight of the above-mentioned water accounts for 45% of the total weight of the ab...

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Abstract

The invention discloses a soda residue soil regeneration backfill material and a preparation method thereof, and relates to the technical field of civil engineering materials. The soda residue soil regeneration backfill material comprises the following formula components in parts by weight: 15-20 parts of soda residue; 5-10 parts of calcium-richened fly ash; 5-10 parts of fly ash; 5-10 parts of muck; 5-10 parts of fine gravel; and 3-7 parts of cement. The soda residue in the soda residue soil regeneration backfill material can be used as a soil skeleton constituent part, and can be used as engineering soil; calcium-richened fly ash and the fly ash can be used for filling gaps among particles such as soda residue and fine gravels and absorbing moisture, so that the dry volume weight and thestrength of the soda residue soil regeneration backfill material can be improved, and the appearance of the soda residue soil regeneration backfill material can also be improved; therefore, the sodaresidue soil regeneration backfill material can be used for engineering filling of low-lying areas and mudflat areas, resource utilization of soda residue is achieved, land utilization resources are effectively increased, environmental pollution is reduced, and economic, social and environmental benefits are obvious.

Description

technical field [0001] The application belongs to the technical field of civil engineering materials, and in particular relates to a regenerated backfill material of alkali dregs and a preparation method thereof. Background technique [0002] Alkali slag is the solid waste produced during the production of soda ash by the ammonia-soda method in soda-making enterprises, and is one of the industrial wastes. At present, there are two main treatment methods for waste residues: one is to let the waste residues flow directly into the bay, and unrestricted mixed discharge will cause different degrees of pollution and silting of sea areas and rivers, and the aquaculture industry will be severely damaged; the other is to discharge the waste residues into deposits. To the slag yard, so that a large amount of land or sea area is occupied, resulting in a "white sea" by the river, which not only endangers the waterway, but also becomes a safety hazard. Many alkali plants at home and abro...

Claims

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Application Information

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IPC IPC(8): C04B28/34
CPCC04B28/34C04B2201/20C04B2201/50C04B7/02C04B7/32C04B18/0481C04B18/08C04B18/16C04B18/12
Inventor 商放泽徐浩薛信恺苏良缘邱礼城俞静雯
Owner POWERCHINA WATER ENVIRONMENT GOVERANCE
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