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Preparation method of foamed light soil, and foamed light soil

A foam lightweight soil quality technology, which is applied in the field of foam lightweight soil and foam lightweight soil preparation, can solve the problems of inability to play a protective role, proportion, and cockroach aggregation, so as to prevent insect aggregation and reduce water content , good stereotyped effect

Inactive Publication Date: 2020-06-02
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing foam lightweight soils are mainly cement, and cement is directly used as a cementing material, which accounts for a relatively large proportion of the entire foam lightweight soil, and the existing foam lightweight soil is widely used in construction or road subgrades. It is easy to cause cockroaches to gather and cannot play a good protective role

Method used

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  • Preparation method of foamed light soil, and foamed light soil

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Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0043] The mass proportion of external admixture is about 30%, the mass proportion of cementing material is about 60%, the mass proportion of chemical auxiliary agent is about 8%, and the mass proportion of active silica-alumina material is about 2%. The mass proportion of ketone-2 powder is about 0.01%.

[0044] in:

[0045] The cementing material includes cement clinker, calcium oxide and bone glue powder, and the mass ratio of these three components in the cementing material is 2:3:1. The external admixture is a mixture of fly ash and wet ash. The active silica-alumina material is composed of fly ash and metakaolin, and the mass ratio of the fly ash to metakaolin is 1.8.

[0046] The chemical auxiliary agent includes sodium sulfate and sodium phenyldodecylsulfonate, the mass proportion of the sodium sulfate in the chemical auxiliary agent is about 60%, and the mass proportion of the sodium phenyldodecylsulfonate in the chemical auxiliary agent is 18% %. In this embodime...

specific Embodiment 2

[0049] The mass proportion of external admixture is about 33%, the mass proportion of cementing material is about 55%, the mass proportion of chemical auxiliary agent is about 9%, and the mass proportion of active silica-alumina material is about 3%. The mass proportion of ketone-2 powder is about 0.03%.

[0050] Among them: the cementing material includes cement clinker, calcium oxide and bone cement powder, and the mass ratio of these three components in the cementing material is 2:3:1. The active silica-alumina material is composed of fly ash and metakaolin, and the mass ratio of the fly ash and metakaolin is 2. The external admixture is formed by mixing fly ash and coal gangue after spontaneous combustion.

[0051] The chemical auxiliary agent includes sodium sulfate and sodium phenyldodecylsulfonate, the mass proportion of the sodium sulfate in the chemical auxiliary agent is about 65%, and the mass proportion of the sodium phenyldodecylsulfonate in the chemical auxiliar...

specific Embodiment 3

[0054] The mass proportion of external admixture is about 35%, the mass proportion of cementing material is about 50%, the mass proportion of chemical auxiliary agent is about 10%, and the mass proportion of active silica-alumina material is about 5%. The mass proportion of ketone-2 powder is about 0.04%.

[0055] Among them: the cementing material includes cement clinker, calcium oxide and bone cement powder, and the mass ratio of these three components in the cementing material is 2:3:1. The active silica-alumina material is composed of fly ash and metakaolin, and the mass ratio of the fly ash to metakaolin is 1.5. The external admixture is mixed with wet ash and coal gangue after spontaneous combustion.

[0056] The chemical auxiliary agent includes sodium sulfate and sodium phenyldodecylsulfonate, the mass ratio of the sodium sulfate in the chemical auxiliary agent is about 50%, and the mass ratio of the sodium phenyldodecylsulfonate in the chemical auxiliary agent is 10%...

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Abstract

The invention discloses a preparation method of foamed light soil, and the foamed light soil. The foamed light soil comprises, by mass, 25-40% of an admixture, 40-65% of a cementing material, 3-21% ofa chemical auxiliary agent, 1-5% of an active silica-alumina substance material and camphanone-2 powder; and the cementing material comprises cement clinker, calcium oxide and bone glue powder, and the mass ratio of the three components in the cementing material is 2: 3: 1. The invention also discloses a preparation method of the foamed light soil. The preparation method comprises the following steps: premixing the raw materials; preparing a slurry; adding a foaming agent; forming a green body; and drying. The energy utilization shortage is effectively relieved, and the foamed light soil is high in strength, less in moisture, quick to dry, good in bonding and shaping and convenient to use.

Description

technical field [0001] The invention relates to the technical field of construction industry, in particular to a preparation method of foamed lightweight soil and the foamed lightweight soil. Background technique [0002] Foam light soil is chemically or physically introduced air or nitrogen, carbon dioxide, oxygen and other gases into the foam slurry according to the application needs, and after reasonable maintenance and molding, it is formed to contain a large number of small closed pores, and has a considerable High-strength foam products are usually produced by mechanically preparing an aqueous solution of a foaming agent into a foam, and then adding the foam to a slurry containing siliceous materials, calcium materials, water and various admixtures, etc. After mixing It is a kind of porous material made by mixing, pouring and curing. [0003] At present, in my country's construction industry, cement, sand, and stones are generally mixed with admixtures and water to fo...

Claims

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Application Information

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IPC IPC(8): C04B28/12C04B38/10C04B111/40C04B111/20
CPCC04B28/12C04B38/106C04B2111/2092C04B2111/40C04B7/00C04B24/38C04B18/08C04B18/12C04B18/10C04B14/106C04B24/008C04B22/147C04B24/20C04B24/2623C04B24/122
Inventor 陈忠平
Owner GUANGZHOU UNIVERSITY
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