Large-flow state light foamed mixed soil

A technology of lightweight foam and mixed soil, which is applied in the field of building materials to achieve the effects of high foaming ratio, reduced settlement deformation, and high compactness

Active Publication Date: 2018-11-20
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of the prior art, the present invention provides a large-flowing lightweight foam mixed soil, which can be used for backfilling gaps such as road cushions, port rock formations, bridge backs and complex pipelines / corridors, and for supporting storage tank feet and other projects and fields, compared with the traditional lightweight foamed soil, the present invention improves the fluidity, mechanics and durability without increasing the bulk density of the lightweight foamed soil, and ensures the porosity and stability, and improves the construction Efficiency and Economic Benefit

Method used

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  • Large-flow state light foamed mixed soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Select components of the following qualities:

[0026]

[0027] Preparation process and test results:

[0028] 1) Take 35 parts of water, add 5 parts of animal protein and 10 parts of sodium lauryl sulfate successively, stir at a constant speed at room temperature until the mixed solution is clear and transparent, and obtain the stock solution of foaming agent, take 35g of the stock solution.

[0029] 2) Add 2 parts of dodecyl alcohol into 8 parts of n-butanol solution and stir at a constant speed at room temperature until the mixture is clear and transparent. Take 55 parts of water, add 1.5 parts of gelatin, 1.5 parts of triethanolamine, and 0.5 parts of tea saponin in sequence, soak for 2-3 hours, and stir evenly at room temperature until the transparent colloid mixture is obtained to obtain a foam stabilizer with excellent performance.

[0030] 3) Mix and stir the solutions prepared in 1) and 2) evenly to obtain a foaming agent with excellent performance, and use...

Embodiment 2

[0036] Change the foam stabilizer component into 1.5g in Example 1, and all the other components and contents remain unchanged.

[0037] Preparation process and test results:

[0038] 1) Take 35 parts of water, add 5 parts of animal protein and 10 parts of sodium lauryl sulfate successively, stir at a constant speed at room temperature until the mixed solution is clear and transparent, and obtain the stock solution of foaming agent. The component takes 35g.

[0039] 2) Add 2 parts of dodecyl alcohol into 8 parts of n-butanol solution and stir at a constant speed at room temperature until the mixture is clear and transparent. Take 55 parts of water, add 1.5 parts of gelatin, 1.5 parts of triethanolamine, and 0.5 parts of tea saponin in sequence, soak for 2-3 hours, and stir evenly at room temperature until the transparent colloid mixture is obtained to obtain a foam stabilizer with excellent performance.

[0040] 3) Mix and stir the solutions prepared in 1) and 2) evenly to ob...

Embodiment 3

[0046] Change the foam stabilizer component into 2.0g in Example 1, and all the other components and contents remain unchanged.

[0047] Preparation process and test results:

[0048] 1) Take 35 parts of water, add 5 parts of animal protein and 10 parts of sodium lauryl sulfate successively, stir at a constant speed at room temperature until the mixed solution is clear and transparent, and obtain the stock solution of foaming agent. The component takes 35g.

[0049] 2) Add 2 parts of dodecyl alcohol into 8 parts of n-butanol solution and stir at a constant speed at room temperature until the mixture is clear and transparent. Take 55 parts of water, add 1.5 parts of gelatin, 1.5 parts of triethanolamine, and 0.5 parts of tea saponin in sequence, soak for 2-3 hours, and stir evenly at room temperature until the transparent colloid mixture is obtained to obtain a foam stabilizer with excellent performance.

[0050] 3) Mix and stir the solutions prepared in 1) and 2) evenly to ob...

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Abstract

The invention provides large-flow state light foamed mixed soil which comprises the following components by mass: 1.5-3.5kg of cement, 1.0-2.5kg of an admixture, 0-2.5kg of clay, 0.5-2.5kg of sand, 1.5-3.5kg of water, 150-300g of a foam group, 0.5-2.0g of a water reduction agent, 0-2.0g of a sedimentation shrinkage reduction agent and 0-1.5g of a foam stabilizer, wherein the foam group is made byfoaming a high-performance animal protein modification foaming agent. The light foamed mixed soil has the characteristics of being high in flowability, high in strength, high in stability, low in shrinkage deformation, high in durability, low in cost, convenient to construct, and the like, the flowability of the light foamed mixed soil can be increased by 30-50% when being compared with that of common foamed light soil, the stability is improved by 50-100%, and the light foamed mixed soil is particularly applicable to fields such as backfill of complex parts such as brokebacks of bridge platforms, pipe galleries/pipelines, tunnels and coal mines, and heat preservation and water resistance of lining layers and roofs in municipal administration and road engineering, and belongs to novel, light, large-flow state foamed light mixed soil with excellent properties.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a large-flowing light-weight foam mixed soil, which is suitable for backfilling, cushioning, roof insulation and waterproofing of complex parts such as abutment backs, pipe galleries, tunnels and coal mines in municipal and road engineering. Background technique [0002] Large fluidity lightweight foam mixed soil belongs to light, high-strength, porous foam soil. According to the definition of large fluidity foam lightweight mixed soil, foaming agent is made into foam through foaming equipment, and the foam is added to cement, aggregate, In the slurry made of admixture, various functional admixtures and water in a certain proportion, the appropriate type and amount of water reducer and expansion agent are added during the stirring process, and the mixture is formed by mixing, pouring, curing and other processes. lightweight microporous concrete. The development of lightweight f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/10C04B28/00
CPCC04B28/00C04B2111/40C04B2201/20C04B2201/50C04B14/06C04B14/10C04B18/08C04B14/106C04B24/14C04B24/16C04B24/10C04B24/38C04B24/122C04B24/026C04B24/04C04B22/062C04B18/12C04B38/10C04B38/0074C04B38/0067
Inventor 赵健戴雨辰高培伟宿静周立波李仁山徐少云刘祥勇耿飞卢小琳
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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