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Alkali residue-based cement gel material

A gel material, alkali slag-based technology, applied in cement production, etc., can solve the problems of high cost, environmental pollution, etc., and achieve the effect of fast hardening, simple manufacturing process, hardening acid and alkali corrosion resistance

Active Publication Date: 2015-01-28
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an alkali slag-based cement gel material, which is an alkali slag geopolymer made of a large amount of waste alkali slag, without cement at all, which overcomes the existing Due to the high cost and indirect serious environmental pollution caused by the use of cement in gel materials for construction, a large amount of alkali slag waste is effectively used to turn waste into treasure

Method used

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  • Alkali residue-based cement gel material
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  • Alkali residue-based cement gel material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Get the actual required amount of alkali slag and fly ash for construction projects, and mix evenly with 40% (quality) of alkali slag and 60% (quality) of fly ash, then add 10% ( mass) molar concentration of 3.0M water glass as an active agent, then stir evenly to obtain a kind of alkali slag-based cement gel material.

[0015] The unconfined compressive strength measurement results of a kind of alkali slag-based cement gel material obtained in the present embodiment are as follows:

[0016] The alkali slag-based cement gel material prepared in this example has high compressive strength, and the compressive strength of the 28-day-old sample is greater than that of the 7-day-old sample. Table 1 lists the unconfined compressive strength of an alkali slag-based cement gel material prepared in this example. The measured unconfined compressive strength is 17.60MPa-25.13MPa, which can meet the strength requirements for mine water-stop curtains and other related projects.

...

Embodiment 2

[0020] Get the actual required amount of alkali slag and fly ash for construction projects, and mix the alkali slag and 50% (quality) fly ash uniformly by percentage, and then add 15% ( mass) molar concentration of 3.0M water glass as an active agent, then stir evenly to obtain a kind of alkali slag-based cement gel material.

[0021] The unconfined compressive strength measurement results of a kind of alkali slag-based cement gel material obtained in the present embodiment are as follows:

[0022] The alkali slag-based cement gel material prepared in this example has high compressive strength, and the compressive strength of the 28-day-old sample is increased compared with that of the 7-day-old sample. Table 2 lists the unconfined compressive strength of an alkali slag-based cement gel material prepared in this example. The measured unconfined compressive strength values ​​range from 17.82MPa to 25.73MPa, which can meet the strength requirements for mine water-stop curtains ...

Embodiment 3

[0026] Get the actual required amount of alkali slag and fly ash for construction projects, mix evenly with 60% (quality) of alkali slag and 40% (quality) of fly ash, and then add 10% ( mass) molar concentration of 3.0M water glass as an active agent, then stir evenly to obtain a kind of alkali slag-based cement gel material.

[0027] The unconfined compressive strength measurement results of a kind of alkali slag-based cement gel material obtained in the present embodiment are as follows:

[0028] The alkali slag-based cement gel material prepared in this example has high compressive strength, and the compressive strength of the 28-day-old sample is increased compared with that of the 7-day-old sample. Table 3 lists the unconfined compressive strength of an alkali slag-based cement gel material prepared in this example. The measured unconfined compressive strength values ​​range from 19.38MPa to 27.68MPa, which can meet the strength requirements for mine water-stop curtains ...

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Abstract

The invention discloses an alkali residue-based cement gel material and relates to a building material of a waste composition in alkaline industry. The building material is a composition which is prepared from 40-60% by mass of alkali residues, 40-60% by mass of coal ash and 10-20% by mass of an active agent based on total mass of the alkali residues and coal ash. The alkali residue-based cement gel material is prepared by the following steps: firstly, uniformly mixing the alkali residues in required use level by a regulated mass percent and coal ash; then, adding 10-20% by mass of active agent based on total mass of the mixture; and then uniformly stirring to obtain the alkali residue-based cement gel material which is an alkali residue geopolymer prepared from large-dope waste alkali residues. The alkali residue geopolymer which replaces cement is used for related projects such as a waterproof curtain of a mine, so that not only is the defect that the cost is high and the environment is indirectly and severely polluted due to cement used in the existing gel material solved, but also a lot of waste alkali residues are effectively utilized, thereby turning wastes into wealth.

Description

technical field [0001] The technical proposal of the present invention relates to a building material composed of soda-making industrial waste, specifically a kind of alkali slag-based cement gel material. Background technique [0002] In the research and development of existing gel materials for construction, although cement-like materials based on waste materials are constantly being sought and developed, most of these composite cement materials are still based on cement, which is not only costly, but also It is well known that the production process of cement produces a large amount of CO 2 Exhaust gas is discharged, seriously polluting the environment. "Application of high-pressure jet grouting pile curtain water stop in karst cave treatment" (Liu Qinshu. Fujian Architecture (Natural Science Edition). 2008.3(117): 71-72) reported that the high-pressure jet jet pile curtain water stop adopts 425# ordinary silicon Salt cement slurry, in which the water-cement ratio is 1....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/26C04B7/24
CPCY02P40/10
Inventor 刘春原陶明江左丽明赵献辉朱楠王文静赵梦璇张晓晓赵越闫虎成
Owner HEBEI UNIV OF TECH
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