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Refuse-soil geopolymer solidifying material and preparation method thereof

A geopolymer and curing material technology, applied in the field of building materials, can solve the problems of high cost, achieve the effects of energy saving, ecological environment protection and wide application

Inactive Publication Date: 2017-06-09
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a solidified material of slag geopolymer, aiming at solving the problem of high cost of existing fly ash geopolymer

Method used

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  • Refuse-soil geopolymer solidifying material and preparation method thereof
  • Refuse-soil geopolymer solidifying material and preparation method thereof
  • Refuse-soil geopolymer solidifying material and preparation method thereof

Examples

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preparation example Construction

[0042]A method for preparing a solidified material of slag geopolymer, comprising the following steps, step A: raw material pretreatment, the raw material pretreatment is to stir the raw material after drying and grinding, and the raw material includes fully weathered granite backfill One or more combinations of , silt, residual mud, sea mud, and sludge;

[0043] Step B: adding an alkaline activator, adding sodium hydroxide solution and sodium silicate solution to the raw materials obtained in step A according to the sequence while stirring; the sodium hydroxide solution and the sodium silicate solution The ratio of the sum of the mass to the raw material is 1:2.6-4.2; the ratio of the mass of the sodium silicate solution to the sodium hydroxide solution is 2.3-2.7:1; the modulus of the sodium silicate solution Be 2.0; The molar concentration of described sodium hydroxide solution is 14 mol / L;

[0044] Step C: curing step; the curing step is to maintain the mixed system obtai...

specific Embodiment 1

[0050] muck NaOH solution Na 2 SiO 3 the solution

specific Embodiment 2

[0052] muck NaOH solution Na 2 SiO 3 the solution

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Abstract

The invention belongs to the field of building materials, and particularly relates to a refuse-soil geopolymer solidifying material and a preparation method thereof. The refuse-soil geopolymer solidifying material comprises raw materials and alkali activators, the feeding ratio of the alkali activators to the raw materials is 1: (2.6-4.2), the raw materials comprise, by weight, 361-460 parts of refuse soil, and the refuse soil comprises one or several compositions in completely-decomposed granite backfilled soil, sludge, surplus mud, sea mud and sewage mud. The acquired refuse-soil geopolymer solidifying material products are high in practicability and good in working performance and can be widely applied to practical engineering, the products can be used for in-situ solidification of the refuse soil, the overall stability and the strength of the refuse soil are improved, the material products can be prepared into building materials for building engineering and is used for preparing neat paste, mortar, concrete, blocks and the like, the material products can serve as with pressed and bending building components, the building components comprise columns, beams, plates and the like, and the refuse-soil geopolymer solidifying material can solve the problem that the preparation cost of coal ash geopolymers rises as coal ash price is high.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a slag geopolymer solidified material and a preparation method thereof. Background technique [0002] With the advancement of science and technology, people's quality of life is getting higher and higher. Traditional concrete materials can no longer meet various construction needs. For this reason, geopolymer materials have been developed. [0003] Geopolymers can be used in many engineering fields, such as bridge engineering, construction engineering, geotechnical engineering, underground space construction and soil geology. It can be used to prepare cement, concrete, bricks, blocks, plates, artificial lightweight aggregates, and roadbed materials. [0004] The most important class of existing geopolymers is the fly ash geopolymer. Fly ash geopolymer is the use of fly ash to generate geopolymer materials. The raw material of fly ash geopolymers is low-calcium f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/24C04B28/00
CPCC04B7/24C04B7/246C04B28/006C04B22/064C04B22/08Y02P40/10
Inventor 查晓雄战佳朋杜尚波
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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