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A kind of fluid solidified soil and preparation method thereof

A solidifying soil and fluid state technology, applied in the field of civil engineering, can solve problems such as increasing traffic pressure, construction waste polluting the environment, and affecting construction efficiency, so as to reduce purchase costs, reduce environmental pollution and economic costs, and increase utilization channels Effect

Active Publication Date: 2022-03-01
POWERCHINA WATER ENVIRONMENT GOVERANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional road backfill method treats the excavated muck as construction waste, and then uses a large amount of gravel powder, fine silt and other external backfill materials for backfill, which will not only produce a large amount of construction waste to pollute the environment, but also increase the pressure on transportation. Affect the construction efficiency, and at the same time, it is necessary to purchase a large amount of backfill materials, resulting in higher economic costs

Method used

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  • A kind of fluid solidified soil and preparation method thereof
  • A kind of fluid solidified soil and preparation method thereof
  • A kind of fluid solidified soil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1 of the present invention provides a kind of fluid solidification soil, comprises the formula component of following mass parts:

[0025]

[0026] The slag in the above-mentioned embodiment 1 may come from the foundation trench excavation of building construction.

[0027] Optionally, the above-mentioned dregs are mainly cohesive soil and fine-grained sandy soil. When cement and water are added and stirred, the various components in the cement and the water in the dregs undergo a strong hydrolysis reaction and hydration Reaction, while forming calcium hydroxide and other hydrates from the solution to harden the hydrates of cement.

[0028] Optionally, the particle size of the above muck is ≤40 mm, and the content of particles with a particle size of less than 2 mm does not exceed 55 wt%, and the content of particles with a particle size of 5-20 mm does not exceed 30 wt%.

[0029] It should be noted that when the particle content of particle diameter 40 m...

Embodiment 2

[0041] Corresponding to the liquid solidified soil in the first embodiment above, a preparation method of the fluid solidified soil provided in the second embodiment of the present application. For ease of description, only the parts related to this embodiment are shown below.

[0042] The raw material of above-mentioned fluid solidified soil is prepared through the following steps:

[0043] S1: Crushing the dregs and removing foreign matter and polluted parts in the dregs;

[0044] S2: each component is weighed respectively according to the formula of the fluid solidified soil described in any one of claims 1-9;

[0045] S3: Mix and stir the weighed components until the texture is uniform to obtain the finished product.

[0046] Wherein, please refer to the record in Embodiment 1 for the above-mentioned fluid solidified soil, and details will not be repeated here.

[0047] Specifically, the above S1 includes: crushing the muck to a certain extent to reduce the sticky lumps o...

Embodiment 3

[0064] Select the following components by mass:

[0065]

[0066] Wherein, the content of particles with a particle diameter of <2mm in the above-mentioned weak saline soil is 50wt%, and the content of particles with a particle diameter of 5-20mm is 25wt%; the content of organic matter in the above-mentioned weak saline soil is 2wt%.

[0067] The preparation process is as follows:

[0068] S1: First crush the weakly saline soil to a certain extent, and then remove foreign matter such as gravel, wood chips, iron chips and polluted and smelly river bottom mud in the soil.

[0069] S2: Weigh each component according to the above-mentioned formula of fluid solidified soil.

[0070] S3: The weighed components are mixed and stirred for 5 minutes by biaxial stirring until the texture is uniform, and the finished product is obtained.

[0071] The relevant performance test result of embodiment three fluid state solidified soils:

[0072] Water-solid ratio: 0.275

[0073] Mobilit...

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Abstract

The application provides a liquid solidified soil and a preparation method thereof, comprising the following formula components in parts by mass: 15-20 parts of muck, 5-7 parts of pottery sand, 6-7 parts of water, and 1.5-2.5 parts of cement , 0.3-0.5 part of fly ash, 0.005-0.01 part of early strength agent. The preparation method provided by the application includes the following steps: crushing the dregs and removing foreign matter and polluted parts in the dregs, weighing each component respectively according to the formula of the above-mentioned fluid solidified soil, and weighing each component Mix and stir until the texture is uniform to obtain the finished product. The use of pottery sand in the formula to prepare fluid solidified soil can play a role in gradation, which increases the volume stability and bearing capacity of the prepared fluid solidified soil, which not only realizes in-situ resource utilization of dregs, but also reduces external backfill materials At the same time, it increases the utilization of new renewable building materials such as pottery sand and fly ash, which are resource-resourced river sediments.

Description

technical field [0001] The application relates to the field of civil engineering, in particular to a fluid solidified soil and a preparation method thereof. Background technique [0002] my country's urban construction is in the stage of rapid development, among which road backfilling is a common problem to be faced, such as backfilling after urban road embankment slotting for pipeline burial, backfilling around inspection wells, road excavation backfilling, etc. [0003] The traditional road backfill method treats the excavated muck as construction waste, and then uses a large amount of gravel powder, fine silt and other external backfill materials for backfill, which will not only produce a large amount of construction waste to pollute the environment, but also increase the pressure on transportation. It affects the construction efficiency, and at the same time, it is necessary to purchase a large amount of backfill materials, resulting in higher economic costs. Contents...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B28/08C04B28/02
CPCC04B28/04C04B28/08C04B28/021C04B14/10C04B18/165C04B18/027C04B22/002C04B18/08C04B2103/12C04B14/361Y02A20/402
Inventor 徐浩薛信恺苏良缘陈秋宇李金波刘禹
Owner POWERCHINA WATER ENVIRONMENT GOVERANCE