CN111056764A - Efficient solid waste base gelation activity excitant - Google Patents
Efficient solid waste base gelation activity excitant Download PDFInfo
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- CN111056764A CN111056764A CN201911275441.1A CN201911275441A CN111056764A CN 111056764 A CN111056764 A CN 111056764A CN 201911275441 A CN201911275441 A CN 201911275441A CN 111056764 A CN111056764 A CN 111056764A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to an efficient solid waste base gelation activity excitant, and relates to the fields of material science and solid waste resource utilization. The method mainly solves the problem that solid wastes such as red mud, coal gangue, tailings and the like are difficult to utilize, and prepares the high-performance red mud-based cementing material. The efficient red mud gelling activity excitant comprises 40-60 parts of alkali metal silicate, 10-20 parts of alkali metal hydroxide, 0-15 parts of high-calcium solid waste material, 4-8 parts of carbonate, 0-5 parts of hydrotalcite and 0-8 parts of imidazole porous crystal material. The red mud-based cementing material prepared by the method has the advantages of high mechanical strength, short setting time and the like.
Description
Technical Field
The invention belongs to the field of material science and solid waste resource utilization, and particularly relates to a high-efficiency solid waste base gelation activity excitant.
Background
The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
At present, the rapid development of the economy of China requires a huge amount of cement-based cementing materials for a large amount of engineering construction. The traditional cement material has the defects of high energy consumption, large pollution, high cost, non-renewable raw materials and the like, so that the research and development of the solid waste base cementing material becomes a research hotspot in the research and development field of cement type cementing materials. However, the solid waste has the defect of low activity, so that the use of the solid waste in construction engineering is limited.
Disclosure of Invention
The invention provides a novel high-efficiency excitant for solid waste-based cementing materials, aiming at the defects of solid waste in the field of preparing cementing materials, and the excitant has high excitation efficiency, low cost and environmental protection.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
an efficient solid waste base gelling activity excitant is composed of the following raw materials in parts by weight: 40-60 parts of alkali metal silicate, 10-20 parts of alkali metal hydroxide, 0-15 parts of high-calcium solid waste material, 4-8 parts of carbonate, 0-5 parts of talcum material and 0-8 parts of imidazole porous crystal material.
The invention has the advantages that: strong alkaline components such as alkali metal silicate, alkali metal hydroxide and the like can destroy the stable lattice structure of solid waste, thereby improving the gelling activity; the calcium source in the high-calcium solid waste can participate in the hydration reaction of regular components in the solid waste to generate high-strength gelled minerals; the talc material and the imidazole porous crystal material have the properties of large specific surface area, multiple reactive sites and the like, and can improve the gelling activity of solid wastes, so that the solid waste base gelling material excitant with high excitation efficiency is prepared under the synergistic action of multiple components.
In some embodiments, the composition comprises the following raw materials in parts by weight: 40-50 parts of alkali metal silicate, 10-15 parts of alkali metal hydroxide, 0-8 parts of high-calcium solid waste material, 4-6 parts of carbonate, 0-3 parts of talcum material and 0-4 parts of imidazole porous crystal material. The high-efficiency excitant has the advantages of high excitation efficiency, environmental protection, low cost and the like, and is simple in manufacturing process and easy to popularize.
In some embodiments, the composition comprises the following raw materials in parts by weight: 50-60 parts of alkali metal silicate, 15-20 parts of alkali metal hydroxide, 8-15 parts of high-calcium solid waste material, 6-8 parts of carbonate, 3-5 parts of talcum material and 4-8 parts of imidazole porous crystal material. The excitant has high excitation efficiency, low cost and environmental protection.
In some embodiments, the alkali metal silicate is at least one of sodium silicate or potassium silicate and the alkali metal hydroxide is at least one of sodium hydroxide or potassium hydroxide. Strong alkaline components such as alkali metal silicate and alkali metal hydroxide can destroy the stable lattice structure of solid wastes, thereby improving the gelling activity.
In some embodiments, the high-calcium solid waste material is at least one of carbide slag, desulfurized gypsum, fluorgypsum or phosphogypsum, and a calcium source in the high-calcium solid waste can participate in a hydration reaction of regular components in the solid waste to generate high-strength gelled minerals.
In some embodiments, the talc-based material is at least one of talc, hydrotalcite, or a hydrotalcite-like material. The talc material and the imidazole porous crystal material have the performances of large specific surface area, more reactive sites and the like, and can improve the gelling activity of solid wastes.
In some embodiments, the imidazole porous crystal material is one or more of ZIF series ZIF-8(Zn), ZIF-8(Co), ZIF-68 and ZIF-67. The imidazole porous crystal material combines high stability in inorganic zeolite and high porosity and organic function of MOFs, and effectively improves compressive strength and excitation efficiency.
The invention also provides a production method of the high-efficiency solid waste base gelling activity excitant, which is characterized in that alkali metal silicate, alkali metal hydroxide, high-calcium solid waste material, carbonate, talc material and imidazole porous crystal material are uniformly mixed and ground until the specific surface area is 440-500m2and/Kg, thus obtaining the product. The solid waste base cementing material excitant with high excitation efficiency is prepared through the cooperation of a plurality of components.
The invention also provides application of any one of the high-efficiency solid waste base gelling activity excitants in the field of constructional engineering.
The invention has the beneficial effects that:
(1) the high-efficiency excitant has the advantages of high excitation efficiency, environmental protection, low cost and the like, and is simple in manufacturing process and easy to popularize.
(2) The operation method is simple, low in cost, universal and easy for large-scale production.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As described in the background, there is a problem of low activity against solid waste. Therefore, the invention provides an efficient solid waste base gelling activity excitant, which comprises the following main components, by weight, 40-60 parts of alkali metal silicate, 10-20 parts of alkali metal hydroxide, 0-15 parts of high-calcium solid waste material, 4-8 parts of carbonate, 0-5 parts of talcum material and 0-8 parts of imidazole porous crystal material.
The high-efficiency solid waste base gelation activity excitant is characterized in that the alkali metal silicate is one or two of sodium silicate and potassium silicate, and the alkali metal silicate can be obtained in an industrial grade.
The high-efficiency solid waste base gelation activity excitant is characterized in that the alkali metal hydroxide is one or two of sodium hydroxide and potassium hydroxide, and the alkali metal hydroxide is obtained by industrial grade.
The high-efficiency solid waste base gelling activity excitant is characterized in that the high-calcium solid waste material is one or more of carbide slag, desulfurized gypsum, fluorgypsum and phosphogypsum.
The efficient solid waste base gelation activity excitant is characterized in that the talc material is one or more of talcum powder, hydrotalcite-like materials and the like.
The efficient solid waste base gelation activity excitant is characterized in that the imidazole porous crystal material is one or more of ZIF series in ZIF-8(Zn), ZIF-8(Co), ZIF-68 and ZIF-67.
The technical scheme adopting the measures comprises the following production processes: (1) weighing, mixing and grinding various raw materials until the specific surface area is 440-500m2and/Kg for standby.
The present invention is described in further detail below with reference to specific examples, which are intended to be illustrative of the invention and not limiting.
Wherein the solid waste is mineral powder-red mud with the mass ratio of 4:6, the doping amount of the excitant is 8 percent of the total mass of the red mud-mineral powder, the water-cement ratio is 0.6, demoulding is carried out for 24 hours, and natural curing is carried out.
Example 1
Formulation example 1 of the present invention:
example 2
Wherein the solid waste is selected from fly ash-coal gangue with the weight ratio of 1:1, the doping amount of the excitant is 8 percent of the total mass of the fly ash-coal gangue, the water-cement ratio is 0.6, demoulding is carried out for 24 hours, and curing is carried out at 80 ℃, and the formula of the invention is as follows:
it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents can be made in the technical solutions described in the foregoing embodiments, or equivalents thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Although the present invention has been described with reference to the specific embodiments, it should be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. The efficient solid waste base gelation activity excitant is characterized by comprising the following raw materials in parts by weight: 40-60 parts of alkali metal silicate, 10-20 parts of alkali metal hydroxide, 0-15 parts of high-calcium solid waste material, 4-8 parts of carbonate, 0-5 parts of talcum material and 0-8 parts of imidazole porous crystal material.
2. The high-efficiency solid waste base gelling activity excitant of claim 1, which is composed of the following raw materials in parts by weight: 40-50 parts of alkali metal silicate, 10-15 parts of alkali metal hydroxide, 0-8 parts of high-calcium solid waste material, 4-6 parts of carbonate, 0-3 parts of talcum material and 0-4 parts of imidazole porous crystal material.
3. The high-efficiency solid waste base gelling activity excitant of claim 1, which is composed of the following raw materials in parts by weight: 50-60 parts of alkali metal silicate, 15-20 parts of alkali metal hydroxide, 8-15 parts of high-calcium solid waste material, 6-8 parts of carbonate, 3-5 parts of talcum material and 4-8 parts of imidazole porous crystal material.
4. The activator of high efficiency solid waste based gelling activity of claim 1, wherein the alkali metal silicate is at least one of sodium silicate or potassium silicate.
5. The activator of high efficiency solid waste based gelling activity as claimed in claim 1, wherein the alkali metal hydroxide is at least one of sodium hydroxide or potassium hydroxide.
6. The high-efficiency solid waste-based gelling activity excitant of claim 1, wherein the high-calcium solid waste material is at least one of carbide slag, desulfurized gypsum, fluorgypsum or phosphogypsum.
7. The high efficiency solid waste based gelling activity activator according to claim 1, wherein the talc-based material is at least one of talc, hydrotalcite or hydrotalcite-like material.
8. The efficient solid waste base gelling activity excitant as claimed in claim 1, wherein the imidazole porous crystal material is one or more of ZIF series in ZIF-8(Zn), ZIF-8(Co), ZIF-68 and ZIF-67.
9. A production method of an efficient solid waste based gelling activity excitant is characterized in that alkali metal silicate, alkali metal hydroxide, high calcium solid waste material, carbonate, talc material and imidazole porous crystal material are uniformly mixed and ground until the specific surface area is 440-500 m-2and/Kg, thus obtaining the product.
10. The use of the high efficiency solid waste based gelling activity excitant of any of claims 1-8 in the field of construction engineering.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592326A (en) * | 2020-06-04 | 2020-08-28 | 黄勇 | High-performance bonding modification excitant for industrial solid waste treatment |
| CN111606594A (en) * | 2020-06-04 | 2020-09-01 | 黄勇 | High-performance bonding modification excitant for building solid waste treatment |
| CN115403290A (en) * | 2022-07-15 | 2022-11-29 | 山东大学 | Gelling activity excitant suitable for red mud-based gelling material for traffic engineering |
| CN116102271A (en) * | 2022-12-24 | 2023-05-12 | 武汉理工大学 | Phosphogypsum-based cementing material and preparation method thereof |
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Cited By (4)
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|---|---|---|---|---|
| CN111592326A (en) * | 2020-06-04 | 2020-08-28 | 黄勇 | High-performance bonding modification excitant for industrial solid waste treatment |
| CN111606594A (en) * | 2020-06-04 | 2020-09-01 | 黄勇 | High-performance bonding modification excitant for building solid waste treatment |
| CN115403290A (en) * | 2022-07-15 | 2022-11-29 | 山东大学 | Gelling activity excitant suitable for red mud-based gelling material for traffic engineering |
| CN116102271A (en) * | 2022-12-24 | 2023-05-12 | 武汉理工大学 | Phosphogypsum-based cementing material and preparation method thereof |
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| CN111056764B (en) | 2020-11-06 |
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