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Alkali-activated slag-based cement mixture grouting material and preparation method thereof

A grouting material and alkali-activated technology, which is applied in the field of construction engineering, can solve the problems of large cement consumption and low economic efficiency, and achieve the effects of high calculus rate, controllable setting time, and good recycling

Inactive Publication Date: 2020-11-10
QINGHAI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the traditional grouting materials use pure cement slurry, the amount of cement is large, and the economy is not outstanding

Method used

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  • Alkali-activated slag-based cement mixture grouting material and preparation method thereof
  • Alkali-activated slag-based cement mixture grouting material and preparation method thereof
  • Alkali-activated slag-based cement mixture grouting material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0032] An alkali-activated slag-based cement mixture grouting material of the present embodiment comprises the following raw materials: Portland cement, water glass, slag and water, the water glass modulus is 3.3, and the Baume degree is 35Bé °, The main components of the slag are CaO and MgO, the water-solid ratio is 0.6, the mass ratio of Portland cement to slag is 0.25:1, and the mass ratio of water glass to the solid phase is 2%.

[0033] The preparation method of the grouting material of the present embodiment comprises the steps:

[0034] (1) according to the weight of each raw material, take by weighing for subsequent use;

[0035] (2) Add Portland cement, water glass, and slag to the stirring device, then add water for the first stirring, stop, the first stirring time is 110s, stop for 18s, and then carry out the second stirring, the second The time for the second stirring is 110s to obtain the grouting material.

Embodiment 2

[0037] An alkali-activated slag-based cement mixture grouting material of the present embodiment comprises the following raw materials: Portland cement, water glass, slag and water, the water glass modulus is 3.3, and the Baume degree is 35Bé °, The main components of the slag are CaO and MgO, the water-solid ratio is 0.7, the mass ratio of Portland cement to slag is 0.625:1, and the mass ratio of water glass to solid phase is 3%.

[0038] The preparation method of the grouting material of the present embodiment comprises the steps:

[0039] (1) according to the weight of each raw material, take by weighing for subsequent use;

[0040] (2) Add Portland cement, water glass, and slag to the stirring device, then add water for the first stirring, stop, the first stirring time is 120s, stop for 15s, and then carry out the second stirring, the second The time of secondary stirring is 120s to obtain the grouting material.

Embodiment 3

[0042] An alkali-activated slag-based cement mixture grouting material of the present embodiment comprises the following raw materials: Portland cement, water glass, slag and water, the water glass modulus is 3.3, and the Baume degree is 35Bé °, The main components of the slag are CaO and MgO, the water-solid ratio is 0.8, the mass ratio of Portland cement to slag is 1.5:1, and the mass ratio of water glass to solid phase is 4%.

[0043] The preparation method of the grouting material of the present embodiment comprises the steps:

[0044] (1) according to the weight of each raw material, take by weighing for subsequent use;

[0045] (2) Add Portland cement, water glass, and slag to the stirring device, then add water for the first stirring, stop, the time of the first stirring is 130s, stop for 12s, and then carry out the second stirring, the second The time for the second stirring is 130s to obtain the grouting material.

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Abstract

The invention relates to an alkali-activated slag-based cement mixture grouting material and a preparation method thereof. The alkali-activated slag-based cement mixture grouting material is preparedfrom the following raw materials: Portland cement, water glass, slag and water. The grouting material is prepared from Portland cement, water glass and slag as mixed main materials according to a specific ratio, and has the advantages of good fluidity, controllable setting time, high stone rate, economy, environmental protection and the like, and the proportion of the slag in slurry has obvious influence on the performance of the grouting material; specifically, the higher the slag content is, the smaller the unconfined compressive strength of the slurry is, the smaller the fluidity is, the longer the initial setting time and the final setting time are, and the higher the stone forming rate is; in addition, the industrial waste residues are adopted, good recycling is achieved, and great significance is achieved for environmental protection.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to an alkali-activated slag-based cement mixture grouting material and a preparation method thereof. Background technique [0002] In recent years, with the continuous increase of infrastructure, the treatment of weak soil foundation is inevitable. The grouting method is currently one of the commonly used methods to deal with weak soil foundations. The grouting material is a key factor that affects the grouting effect. The grouting material is a general term for the engineering materials selected to achieve a certain engineering purpose. It can exist in liquid form. And it is convenient to use hydraulic pressure, air pressure or electrochemical principle to inject the internal space of cracks, fissures, pores and other internal spaces of the corresponding medium, and has the ability of cementing and curing, so that the leakage channel of the medium can b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B111/70
CPCC04B28/26C04B2111/70C04B2201/50C04B22/00C04B18/141
Inventor 崔靖俞张吾渝解邦龙季港澳纪曦
Owner QINGHAI UNIVERSITY
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