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Fly ash-based dredger fill solidification reinforcing agent

A technology of dredger fill and reinforcement, which is applied in the field of dredger fill solidification enhancer, which can solve problems such as insufficient bearing capacity of dredger fill foundations, and achieve the effects of alleviating environmental problems, excellent durability, and reducing costs

Inactive Publication Date: 2017-04-26
刘文白
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art. The present invention provides a novel, efficient, environmentally friendly and economical dredger fill soil stabilization and solidification enhancer, which solves the problem of insufficient bearing capacity of the dredger fill foundation in engineering, and at the same time alleviates the The pollution caused by fly ash to the environment has been eliminated, and waste recycling has been realized

Method used

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  • Fly ash-based dredger fill solidification reinforcing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A dredger fill soil solidification reinforcing agent, which is composed of the following raw materials in mass percentage

[0019] 54% of fly ash, 10.45% of lime, 35% of Portland cement, and 0.55% of enhanced activation activator.

[0020] Wherein: the enhanced activation stimulating agent is composed of 65% of lignin, 12% of natural high molecular polymer, 20% of amide organic matter and 3% of sodium salt. Portland cement is ordinary Portland cement.

[0021] The natural high molecular polymer is cellulose, and the organic amide is N,N-dimethylformamide.

[0022] The powders of the above-mentioned various materials are uniformly mixed in proportion, and the specific surface area of ​​the particle size of the powder is 250-800㎡ / kg. During the storage and transportation of the mixture, strict attention should be paid to moisture-proof measures to prevent rain and water immersion.

Embodiment 2

[0024] A dredger fill soil solidification reinforcing agent, which is composed of the following raw materials in mass percentage

[0025] 55% of fly ash, 10.45% of lime, 34% of Portland cement, and 0.55% of enhanced activation activator.

[0026] Wherein: the enhanced activation stimulating agent is composed of 65% of lignin, 12% of natural high molecular polymer, 20% of amide organic matter and 3% of sodium salt. Portland cement is ordinary Portland cement.

[0027] The natural high molecular polymer is sodium lignosulfonate, and the amide organic matter is benzamide.

[0028] Mix the powders of the above-mentioned various materials uniformly in proportion. During the storage and transportation of the mixture, strict attention should be paid to moisture-proof measures to prevent rain and water immersion.

Embodiment 3

[0030] A dredger fill soil solidification reinforcing agent, which is composed of the following raw materials in mass percentage

[0031] 57% of fly ash, 10.45% of lime, 32% of Portland cement, and 0.55% of enhanced activation activator.

[0032] Wherein: the enhanced activation stimulating agent is composed of 55% of lignin, 12% of sodium lignosulfonate, 30% of acrylamide and 3% of sodium salt. Portland cement is ordinary Portland cement.

[0033] The natural high molecular polymer is sodium lignosulfonate, and the organic amide is acrylamide.

[0034] Mix the powders of the above-mentioned various materials uniformly in proportion. During the storage and transportation of the mixture, strict attention should be paid to moisture-proof measures to prevent rain and water immersion.

[0035] The dredging fill solidifying agent provided by the present invention, its use method is as follows: according to the soil condition of actual engineering situation, on-the-spot dredging ...

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Abstract

The invention relates to a dredger fill solidification reinforcing agent which comprises the following components, by mass percent, 50-60% of fly ash, 9-13% of lime, 30-34% of portland cement and 0.4-0.7% of enhanced activation exciting agent; the portland cement is ordinary portland cement; the enhanced activation exciting agent comprises, by mass percent, 50-70% of lignin, 10-15% of natural high-molecular polymers, 15-35% of amide organic matters and 1-5% of sodium salt; and when in use, the dredger fill solidification reinforcing agent is added according to 7-16% of the wet mass of a dredger fill body to be reinforced and stabilized, and is mixed with the dredger fill body. With the adoption of the novel, efficient, environment-friendly and economical dredger fill solidification reinforcing agent, the pollution to the environment from the fly ash is alleviated, the recycling of waste is realized, and the problem that the bearing capacity of a dredger fill foundation in a project is not sufficient is solved.

Description

technical field [0001] The invention belongs to the technical field of chemical engineering, and in particular relates to a solidification enhancer for dredger filling soil. Background technique [0002] The dredger fill soil has a high moisture content, and the dredger fill soil foundation formed by dredger fill has extremely low bearing capacity and high compressibility. When the dredger fill soil with high moisture content is mixed with the dredge fill solidifying agent, a series of physical and chemical reactions will occur. As a cement, the curing agent will play two roles in the soil with high water content: the silicate hydrate enters the soil particles to form a cementation effect and forms a stable soil skeleton. Increase the compactness of the soil; excite and surface active components form a large number of needle-like crystals rich in crystal water in the dredger fill soil, and form a further strength skeleton between the pores of the soil particles; finally, in...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00017C04B2111/00732
Inventor 刘文白刘宏伟
Owner 刘文白
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