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A kind of composite foam lightweight soil and preparation method thereof

A foam lightweight soil and composite technology, applied in the field of light soil, can solve the problems of being unsuitable for large-scale implementation, high production cost, and low strength value of foam light soil, achieving light weight, good thermal stability, Good effect of bubble effect

Active Publication Date: 2021-07-16
中电建路桥集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing foam lightweight soil has low strength value and high production cost, so it is not suitable for large-scale implementation

Method used

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  • A kind of composite foam lightweight soil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A composite foam lightweight soil specifically includes the following components in parts by weight: 100 parts of gelling material, 5 parts of foam foam, 1 part of reinforcing agent and 50 parts of water.

[0047] The cementitious material is composed of PO425 cement, slag powder, and high-calcium fly ash in a weight ratio of 5:1:2.

[0048] The reinforcing agent is obtained by mixing porous hollow glass microspheres with water.

[0049] Porous hollow glass microspheres are obtained by treating hollow glass microspheres with an acid solution.

[0050] Foaming foam is prepared by foaming agent and water according to the mass ratio of 1:20.

[0051] The foaming agent is obtained by mixing rosin modifier with polyvinylpyrrolidone and lauryl alcohol in a weight ratio of 80:13:6.

[0052] Wherein, the preparation method of rosin modifier is:

[0053] (1) Disposal of waste leather materials

[0054] Weigh the dried waste leather material and mix it with sodium hydroxide sol...

Embodiment 2

[0079] A composite foam lightweight soil specifically includes the following components in parts by weight: 100 parts of gelling material, 10 parts of foaming foam, 10 parts of reinforcing agent and 70 parts of water.

[0080] The cementitious material is composed of PO425 cement, slag powder, and calcium-increased fly ash in a weight ratio of 5:1:2.

[0081] The reinforcing agent is obtained by mixing porous hollow glass microspheres with water.

[0082] Porous hollow glass microspheres are obtained by treating hollow glass microspheres with an acid solution.

[0083] Foaming foam is prepared by foaming agent and water according to the mass ratio of 1:100.

[0084] The foaming agent is obtained by mixing rosin modifier with polyvinylpyrrolidone and lauryl alcohol in a weight ratio of 100:20:10.

[0085] Wherein, the preparation method of rosin modifier is:

[0086] (1) Disposal of waste leather materials

[0087] Weigh the dried waste leather material and mix it with sodi...

Embodiment 3

[0112] A composite foam lightweight soil specifically includes the following components in parts by weight: 100 parts of gelling material, 8 parts of foam foam, 5 parts of reinforcing agent and 60 parts of water.

[0113] The cementitious material is composed of PO425 cement, slag powder, and calcium-increased fly ash in a weight ratio of 5:1:2.

[0114] The reinforcing agent is obtained by mixing porous hollow glass microspheres with water.

[0115] Porous hollow glass microspheres are obtained by treating hollow glass microspheres with an acid solution.

[0116] The foaming foam is prepared by foaming agent and water according to the mass ratio of 1:20-100.

[0117] The foaming agent is obtained by mixing rosin modifier with polyvinylpyrrolidone and lauryl alcohol in a weight ratio of 90:15:8.

[0118] Wherein, the preparation method of rosin modifier is:

[0119] (1) Disposal of waste leather materials

[0120] Weigh the dried waste leather material and mix it with sodium...

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Abstract

The invention relates to the field of lightweight soil, in particular to a composite foam lightweight soil and a preparation method thereof. The invention provides a composite foam lightweight soil, which is characterized in that, in parts by weight, it specifically includes the following components: 100 parts of gelling material, 5-10 parts of foam foam, 1-10 parts of reinforcing agent and 50-70 parts of water. The invention solves the problem that the existing foam light soil has low strength value and high production cost, and is not suitable for large-scale implementation. The composite foam light soil prepared by the present invention utilizes waste leather to prepare a foaming agent, which reduces the cost and produces a good bubble effect, and the reinforcing agent prepared by using hollow glass microspheres is also greatly improved. Increased strength, suitable for large-scale implementation.

Description

technical field [0001] The invention relates to the field of lightweight soil, in particular to a composite foam lightweight soil and a preparation method thereof. Background technique [0002] Foam light soil is a lightweight engineering material with a large number of closed pores obtained by adding the foam group obtained by foaming with a foaming agent into the cementitious material and curing it. It has the advantages of light weight, good integrity, adjustable strength and density, high fluidity, good heat insulation, sound insulation, waterproof performance, and self-support after solidification. The difference in settlement of the old subgrade saves road land and shortens the construction period. When it is used for filling soil at the back of the abutment, it can greatly alleviate the problem of vehicle jumping at the bridge head, and at the same time reduce the horizontal force on the abutment structure. The existing foam lightweight soil has low strength value an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B38/10C04B111/40
CPCC04B28/04C04B2111/40C04B2201/20C04B2201/32C04B2201/50C04B18/141C04B18/08C04B24/34C04B24/2652C04B24/026C04B14/24C04B38/106
Inventor 刘勇刘晖陈钒曲福友王莉李杰史永康黄大伟汤凌翔
Owner 中电建路桥集团有限公司
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