A kind of soil coagulant, its preparation method and application

A coagulant and soil technology, applied in the field of materials, can solve problems such as land resources and ecological environment damage, and achieve the effects of expanding the scope of application, strengthening the connection force, and improving water permeability

Active Publication Date: 2020-08-11
蔡小三
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The accumulation of sludge and waste soil has caused great damage to land resources and ecological environment. Therefore, this problem needs to be solved urgently

Method used

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  • A kind of soil coagulant, its preparation method and application
  • A kind of soil coagulant, its preparation method and application

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preparation example Construction

[0025] In the preparation process of soil coagulant, different additives are added according to actual needs to achieve the required performance. Further, in a preferred embodiment of the present invention, the additive further includes at least one of an activator, a coagulant, and a water reducer.

[0026] The activator is used to activate the activity of fly ash, promote the reaction between fly ash and mud or waste soil residue, cement and anhydrite, improve the gelling effect and increase the strength of the gel. In a preferred embodiment of the present invention, the activator is sodium sulfate, sodium silicate or sodium carbonate.

[0027] The coagulant has the characteristics of rapid setting, accelerating coagulation, early strength, and good operability. It can accelerate the hardening speed, mainly promote the hydration reaction, and improve the early strength of the gel. In a preferred embodiment of the present invention, the coagulant is sodium bicarbonate, sodiu...

Embodiment 1

[0035] The present embodiment provides a kind of soil coagulant, by weight percentage, comprising:

[0036] 30% cement, 25% fly ash, 10% anhydrous gypsum, 5% anti-solvent.

[0037] It is mainly made by the following methods:

[0038] The above-mentioned raw materials are weighed, and the raw materials are sieved to obtain fine particle size raw materials. The specific sieve is 200 mesh.

[0039] Add the sieved raw materials into a mixer, and stir for 20 minutes at a speed of 800 rpm.

Embodiment 2

[0041] The present embodiment provides a kind of soil coagulant, by weight percentage, comprising:

[0042] 50% of cement, 45% of fly ash, 25% of anhydrite, and 20% of anti-solvent.

[0043] It is mainly made by the following methods:

[0044] The above-mentioned raw materials are weighed, and the raw materials are sieved to obtain fine particle size raw materials. The specific sieve is 500 mesh.

[0045] Add the sieved raw materials into a mixer, and stir for 40 minutes at a speed of 1200 rpm.

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Abstract

The invention provides a soil solidifier as well as a preparation method and an application thereof and relates to the technical field of materials. The soil solidifier is prepared from raw materials in percentage by weight as follows: 30%-50% of cement, 25%-45% of fly ash, 10%-25% of anhydrite and 5%-20% of an additive. The soil solidifier can modify sludge and spent clay into materials with high hardness and good water resistance and has better application prospects. The preparation method of the soil solidifier comprises the step of raw material mixing. The method adopts a simple preparation process and is high in controllability, low in preparation cost and suitable for large-scale production.

Description

technical field [0001] The invention relates to the field of material technology, and in particular to a soil coagulant, its preparation method and application. Background technique [0002] During the construction of shield tunneling in urban construction and subway construction, a large amount of mud and waste soil will be generated. At present, the treatment of sludge and waste soil basically adopts the method of transporting the produced sludge to the designated waste dump for stacking by the sludge transport unit, and some construction units install equipment on site and add chemical components to the sludge produced After the mud is processed, it is transported and disposed of, and its essential disposal method treats the symptoms rather than the root cause. The accumulation of sludge and waste soil has caused great damage to land resources and ecological environment. Therefore, this problem needs to be solved urgently. Contents of the invention [0003] The purpos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/02
CPCC04B28/02C04B2111/00732C04B2111/0075C04B2201/50C04B18/08C04B14/365C04B2103/0068C04B20/008C04B22/10C04B22/085C04B24/18C04B22/00C04B24/223
Inventor 蔡小三
Owner 蔡小三
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