Geotechnical engineering waste slurry efficient solidifying agent

A technology of geotechnical engineering and waste mud, which is applied in the field of civil engineering and construction materials, can solve the problems of large amount of curing agent per unit, no activity, low strength, etc., and achieve the effect of accelerating solidification, reducing permeability and improving strength

Inactive Publication Date: 2016-02-03
MAANSHAN MCC17 ENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cement is a good curing agent, but the cost is too high
At present, the use of industrial waste or by-products as curing agents to solidify waste mud has attracted widespread attention. This kind of research on the use of industrial waste to control environmental pollution has important environmental, economic and social benefits, but because the raw materials themselves have no activity, Therefore, the strength of the consolidated mud after hardening is relatively low, and the amount of unit curing agent used is too large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Geopolymer 72%

[0035] Alkaline stimulator 26%

[0036] High bound water material 1.5%

[0037] Super absorbent polymer 0.4%

[0038] 0.1% crosslinking agent.

[0039] The above formula components are mixed, mixed and ground into powder to obtain an inorganic solidified material with a high-efficiency solidification effect on the waste mud of geotechnical engineering. After adding the solidified material accounting for 1 / 5 to 1 / 10 of the solids in the waste mud , Can solidify the waste mud with a moisture content of more than 50% within 1~3 days, the unconfined compressive strength of the solidified body can reach more than 0.2MPa for 7 days, and the unconfined compressive strength for 28 days can reach more than 0.5MPa, and Long-term strength does not shrink. The curing agent has a simple processing technology, easy-to-obtain raw materials, and the solidified muddy soil is close to the soil of the cultivated land. It can also be used to fill low-lying sites to return farmlan...

Embodiment 2

[0041] Geopolymer 55%

[0042] Alkaline stimulant 36.78%

[0043] High bound water material 4.5%

[0044] Super absorbent polymer 2.6%

[0045] Crosslinking agent 1.12%.

Embodiment 3

[0047] Geopolymer 80%

[0048] Alkaline stimulant 13%

[0049] High bound water material 4.5%

[0050] Super absorbent polymer 1.38%

[0051] Crosslinking agent 1.12%.

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PUM

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Abstract

The invention discloses a geotechnical engineering waste slurry efficient solidifying agent, which is prepared from the following ingredients in percentage by weight: 55 to 80 percent of geopolymers, 13 to 40 percent of alkali activators, 0.8 to 4.5 percent of high-bonding water materials, 0.3 to 2.6 percent of super water-absorbable polymers and 0.05 to 1.12 percent of cross-linking agents. In addition, the preferable percentage of the ingredients is shown as follows: 72 percent of geopolymers, 26 percent of alkali activators, 1.5 percent of high-bonding water materials, 0.4 percent of super water-absorbable polymers and 0.1 percent of cross-linking agents. The geotechnical engineering waste slurry efficient solidifying agent has the advantages that the solidification effect of geotechnical engineering waste slurry is greatly improved; the cement consumption is reduced; the cost is reduced; the environment pollution is reduced; the cyclic utilization of waste materials is promoted; good economic benefits and social benefits are realized.

Description

Technical field [0001] The invention relates to the technical field of civil construction materials, in particular to a high-efficiency solidifying agent for geotechnical engineering waste mud. Background technique [0002] With the rapid development of the national economy, the engineering volume of geotechnical engineering construction has doubled, so a large amount of waste mud with extremely high water content is produced in the engineering construction. Due to the dispersibility and concealment of the waste mud produced by engineering construction, its pollution prevention and comprehensive treatment have not attracted people's attention. At present, the waste mud produced by geotechnical engineering is generally injected into the ground, diluted and discharged or naturally dried as miscellaneous soil. The processing cycle of this method is too long. In recent years, people have a deep understanding of the environmental pollution caused by construction waste mud and the neg...

Claims

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Application Information

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IPC IPC(8): C04B12/00
CPCY02P40/10
Inventor 钱元弟雷团结王孝平李亚辉黄维军陈贺王慧
Owner MAANSHAN MCC17 ENG TECH CO LTD
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