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A kind of all-slag foam lightweight soil and preparation method thereof

A technology of foaming lightweight soil and slag, which is applied in the field of building materials, can solve the problems of high thermal energy consumption and high production cost, and achieve the effects of low production cost, excellent waterproof performance, good strength and density

Active Publication Date: 2018-03-30
重庆黑曜科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the survival of foam light soil mostly uses cement as the cementitious material, which has high production cost and huge potential thermal energy consumption.

Method used

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  • A kind of all-slag foam lightweight soil and preparation method thereof
  • A kind of all-slag foam lightweight soil and preparation method thereof
  • A kind of all-slag foam lightweight soil and preparation method thereof

Examples

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preparation example Construction

[0036] A preparation method of full slag foam light soil, comprising the following steps:

[0037] 1) Weigh each component according to the following weight ratio: 21-23 parts of slag, 9-10 parts of fly ash, 3-4 parts of stone powder, 1-2 parts of sodium silicate, 0.9-0.95 parts of alkaline waterproof foam stabilizer , 16-26 parts of water, 3-4 parts of foam;

[0038] 2) After mixing and stirring the slag, fly ash, stone powder, sodium silicate, alkaline waterproof foam stabilizer and water in step 1), add foam to it, and adjust the density of the obtained mixed slurry to 550-600kg / m 3 , to obtain the whole slag foam light soil.

Embodiment 1

[0040] A kind of whole slag foam light soil, comprising the following component raw materials in parts by weight: 21 parts of slag, 9 parts of fly ash, 3 parts of stone powder, 1 part of sodium silicate, 0.9 part of alkaline waterproof foam stabilizer, and 16 parts of water and 3 parts foam,

[0041] Its preparation method comprises the following steps:

[0042] 1) Weigh 21 parts of slag, 9 parts of fly ash, 3 parts of stone powder, 1 part of sodium silicate, 0.9 parts of alkaline waterproof foam stabilizer, and 16 parts of water in the above weight parts, and place them in a stirring device to mix and stir evenly to obtain mixed slurry;

[0043] 2) Add 3 parts of foam to the mixed slurry obtained in step 1), adjust the density of the mixed slurry to 550kg / m 3 , to get the full slag foam light soil.

Embodiment 1

[0044] The mass concentration of sodium water glass used in embodiment 1 is 45%, and modulus is 2.9; Described alkaline waterproof foam stabilizer is the mixed solution of potassium hydroxide and ammonium stearate, wherein the mass concentration of ammonium stearate 5%, the mass concentration of potassium hydroxide is 0.85%;

[0045] The fluidity of the obtained whole slag foam light soil is 180mm, the 28d strength is 1.0Mpa, and the water absorption rate is less than 12%. Such as figure 1 It can be seen that the all-slag foam lightweight soil prepared by the present invention has good strength and density, and exhibits excellent waterproof performance at the same time.

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Abstract

The invention relates to a full-slag foam light soil and a preparation method thereof. The full-slag foam light soil comprises the following raw materials by weight: 21 to 33 parts of slag, 9 to 10 parts of fly ash, 3 to 4 parts of stone flour, 1 to 2 parts of sodium silicate, 0.9 to 0.95 part of an alkaline waterproof bubble-stabilizing agent, 16 to 26 parts of water and 3 to 4 parts of foam. The full-slag foam light soil prepared in the invention has wet density of 550 to 600 kg / m3, compressive strength of 1.0 to 1.5 MPa, low cost and good antiseepage performance and flowing properties, and is applicable to a variety of engineering filling materials, especially to an engineering filling material applied at a position below an underground water level.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to an all-slag foamed lightweight soil and a preparation method thereof. Background technique [0002] Foam light soil is a kind of porous lightweight engineering filling material obtained by adding prefabricated foam group to the prepared cementitious material slurry. It has the characteristics of light weight, high compressive strength, adjustable strength, good integrity, high fluidity, good durability, condensation self-support, thermal insulation and good construction, and can be used for backfilling of abutment abutments, roads, etc. Widening, bridge span reduction, steep embankment, landslide subgrade, soft soil subgrade load reduction, underground structure load reduction, tunnel cavity grouting, old bridge reinforcement, frozen soil subgrade thermal insulation and other projects. [0003] At present, cement is mostly used in the survival of foamy lightweight s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/08C04B28/26
Inventor 王宝华
Owner 重庆黑曜科技有限公司