CN114634335A - Preparation method of environment-friendly mortar - Google Patents
Preparation method of environment-friendly mortar Download PDFInfo
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- CN114634335A CN114634335A CN202011478655.1A CN202011478655A CN114634335A CN 114634335 A CN114634335 A CN 114634335A CN 202011478655 A CN202011478655 A CN 202011478655A CN 114634335 A CN114634335 A CN 114634335A
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Classifications
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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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
- C04B12/00—Cements not provided for in groups C04B7/00 - C04B11/00
- C04B12/005—Geopolymer cements, e.g. reaction products of aluminosilicates with alkali metal hydroxides or silicates
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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
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/243—Mixtures thereof with activators or composition-correcting additives, e.g. mixtures of fly ash and alkali activators
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a preparation method of environment-friendly mortar, which comprises the following components in parts by weight: ordinary portland cement: 0-20 parts of a solvent; high-calcium desulfurized fly ash: 8-20 parts of a solvent; tungsten tailings powder: 10-70 parts; mineral powder: 30-90 parts of a solvent; fine aggregate: 30-90 parts of a solvent; fine aggregate: 20-65 parts of a solvent; cement: 0-250 parts of; foaming agent: 1-3 parts; a stabilizer: 1-3 parts; an alkali activator: 0-8 parts of a solvent; water reducing agent: 1-5 parts; water retention thickener: 1-3 parts. According to the invention, the tungsten tailing powder is recycled to replace cement as a cementing material, so that resources are saved, and the industrial solid waste treatment cost is reduced; the tungsten tailing powder geopolymer mortar can be applied to road cushions, pipe gallery cushions and the like, has easily obtained raw materials and low preparation cost, generates better economic benefit and social benefit, and also has the advantages of quick hardening, high strength, low permeability, good durability, low carbon and environmental protection.
Description
Technical Field
The invention relates to the technical field of mortar, in particular to a preparation method of environment-friendly mortar.
Background
With the continuous development of society, energy conservation and emission reduction become a hot problem, and particularly, how to develop and utilize industrial wastes and obtain higher social benefits, ecological benefits and economic benefits. The high-calcium desulfurized ash is industrial waste generated by dry desulfurization in steel plants, the pH value of the high-calcium desulfurized ash is 13-14, the content of calcium hydroxide is about 8-10%, and if the high-calcium desulfurized ash is simply stacked, resources are wasted, a large amount of land is occupied, and serious secondary pollution is caused. The mineral powder and the steel slag are also industrial wastes, have volcanic ash activity and can generate certain strength under alkaline conditions. Therefore, the research on the comprehensive utilization of industrial wastes such as high-calcium desulfurized fly ash, mineral powder, steel slag and the like is increased, and the method has great potential in the field of civil engineering materials.
The mortar is one of building materials with the widest application, has huge market demand, and mainly comprises a cementing material, fine aggregate, water and part of additives. However, the current engineering application of mortar still has many problems, such as large cement consumption and high cost, and in the production and use processes, a large amount of resources are consumed, waste gas and dust are generated, and environmental pollution is caused; the mortar prepared by using industrial wastes has low general strength, narrow application range and single product; in addition, some of the new mortar raw materials are not supplied stably and cannot be produced in large quantities.
The invention utilizes the strong basicity of the high-calcium desulfurized ash to mix the high-calcium desulfurized ash with the mineral powder and the steel slag powder in proportion, so that the mineral powder and the steel slag powder dissolve silicon and aluminum in an alkaline environment to generate products such as calcium silicate hydrate, calcium aluminate hydrate, ettringite and the like, thereby generating strength. In addition, the doping amount of the alkali activator is reduced and the production cost is reduced by doping the high-calcium desulfurized ash.
Disclosure of Invention
In order to solve the technical problems, the invention provides a preparation method of environment-friendly mortar.
The invention provides a preparation method of environment-friendly mortar, compared with the related technology, the technical scheme of the invention is as follows:
the preparation method of the environment-friendly mortar comprises the following components in parts by weight: ordinary portland cement: 0-20 parts of a solvent; high-calcium desulfurized fly ash: 8-20 parts of a solvent; tungsten tailings powder: 10-70 parts; mineral powder: 30-90 parts; fine aggregate: 30-90 parts of a solvent; fine aggregate: 20-65 parts of a solvent; cement: 0-250 parts of; foaming agent: 1-3 parts; a stabilizer: 1-3 parts; an alkali activator: 0-8 parts of a solvent; water reducing agent: 1-5 parts; water retention thickener: 1-3 parts.
The further scheme is that the slag ash comprises the following chemical components in percentage: 0.316 percent of Na 2O; 5.66 percent of MgO; 15.7 percent of Al2O 3; 29.9 percent of SiO 2; 0.0116% of P2O 5; 2.26 percent of SO 3; 43.1 percent of CaO; 0.0052% of Cl; 0.778 percent of K2O; 0.400 percent of Fe2O 3; 0.0079% of CuO; 0.901 percent of TiO 2; 0.129 percent of BaO; MnO of 0.701 percent; 0.0059 percent of Rb 2O; 0.0785 percent of SrO; 0.0113 percent of Y2O 3.
The further proposal is that the second compound excitant is formed by mixing sodium hydroxide solution and sodium silicate solution according to the proportion of 3: 2; the modulus of the second compound excitant is 1.2-1.8.
The further scheme is as follows: the fine aggregate is common medium sand; the particle size range of the medium sand is 0.25-0.45 mm; the fineness modulus of the medium sand is 2.0-2.8.
The invention has the following beneficial effects: according to the invention, the tungsten tailing powder is recycled to replace cement as a cementing material, so that resources are saved, and the industrial solid waste treatment cost is reduced; the tungsten tailing powder geopolymer mortar can be applied to road cushions, pipe gallery cushions and the like, has easily obtained raw materials and low preparation cost, generates better economic benefit and social benefit, and also has the advantages of quick hardening, high strength, low permeability, good durability, low carbon and environmental protection.
Detailed Description
The present invention will be further described with reference to the following embodiments.
The invention provides a preparation method of environment-friendly mortar, which comprises the following components in parts by weight: ordinary portland cement: 0-20 parts of a solvent; high-calcium desulfurized fly ash: 8-20 parts of a solvent; tungsten tailings powder: 10-70 parts; mineral powder: 30-90 parts of a solvent; fine aggregate: 30-90 parts of a solvent; fine aggregate: 20-65 parts of a solvent; cement: 0-250 parts of; foaming agent: 1-3 parts; a stabilizer: 1-3 parts; an alkali activator: 0-8 parts of a solvent; water reducing agent: 1-5 parts; water retention thickener: 1-3 parts.
The further scheme is that the slag ash comprises the following chemical components in percentage: 0.316 percent of Na 2O; 5.66 percent of MgO; 15.7 percent of Al2O 3; 29.9 percent of SiO 2; 0.0116 percent of P2O 5; 2.26 percent of SO 3; 43.1 percent of CaO; 0.0052% of Cl; 0.778 percent of K2O; 0.400 percent of Fe2O 3; 0.0079% of CuO; 0.901 percent of TiO 2; 0.129 percent of BaO; MnO of 0.701 percent; 0.0059 percent of Rb 2O; 0.0785 percent of SrO; 0.0113 percent of Y2O 3.
The further proposal is that the second compound excitant is formed by mixing sodium hydroxide solution and sodium silicate solution according to the proportion of 3: 2; the modulus of the second compound excitant is 1.2-1.8.
The further scheme is as follows: the fine aggregate is common medium sand; the particle size range of the medium sand is 0.25-0.45 mm; the fineness modulus of the medium sand is 2.0-2.8.
According to the invention, the tungsten tailing powder is recycled to replace cement as a cementing material, so that resources are saved, and the industrial solid waste treatment cost is reduced; the tungsten tailing powder geopolymer mortar can be applied to road cushions, pipe gallery cushions and the like, has easily obtained raw materials and low preparation cost, generates better economic benefit and social benefit, and also has the advantages of quick hardening, high strength, low permeability, good durability, low carbon and environmental protection.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are also included in the scope of the present invention.
Claims (4)
1. The preparation method of the environment-friendly mortar is characterized by comprising the following components in parts by weight: ordinary portland cement: 0-20 parts of; high-calcium desulfurized fly ash: 8-20 parts of a solvent; tungsten tailings powder: 10-70 parts; mineral powder: 30-90 parts of a solvent; fine aggregate: 30-90 parts of a solvent; fine aggregate: 20-65 parts of a solvent; cement: 0-250 parts of; foaming agent: 1-3 parts; a stabilizer: 1-3 parts; an alkali activator: 0-8 parts of a solvent; water reducing agent: 1-5 parts; water retention thickener: 1-3 parts.
2. The preparation method of the environment-friendly mortar according to claim 1, wherein the slag ash comprises the following chemical components in percentage by weight: 0.316 percent of Na 2O; 5.66 percent of MgO; 15.7 percent of Al2O 3; 29.9 percent of SiO 2; 0.0116 percent of P2O 5; 2.26 percent of SO 3; 43.1 percent of CaO; 0.0052% of Cl; 0.778 percent of K2O; 0.400 percent of Fe2O 3; 0.0079% of CuO; 0.901 percent of TiO 2; 0.129 percent of BaO; MnO of 0.701 percent; 0.0059 percent of Rb 2O; 0.0785 percent of SrO; 0.0113 percent of Y2O 3.
3. The preparation method of the environment-friendly mortar according to claim 1, wherein the second compound activator is formed by mixing a sodium hydroxide solution and a sodium silicate solution in a ratio of 3: 2; the modulus of the second composite excitant is 1.2-1.8.
4. The method for preparing the environment-friendly mortar according to claim 1, wherein the fine aggregate is common medium sand; the particle size range of the medium sand is 0.25-0.45 mm; the fineness modulus of the medium sand is 2.0-2.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011478655.1A CN114634335A (en) | 2020-12-15 | 2020-12-15 | Preparation method of environment-friendly mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011478655.1A CN114634335A (en) | 2020-12-15 | 2020-12-15 | Preparation method of environment-friendly mortar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114634335A true CN114634335A (en) | 2022-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011478655.1A Withdrawn CN114634335A (en) | 2020-12-15 | 2020-12-15 | Preparation method of environment-friendly mortar |
Country Status (1)
| Country | Link |
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| CN (1) | CN114634335A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116003050A (en) * | 2022-12-12 | 2023-04-25 | 中建商品混凝土有限公司 | Mortar capable of solidifying heavy metal ions in tungsten tailings and preparation method thereof |
-
2020
- 2020-12-15 CN CN202011478655.1A patent/CN114634335A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116003050A (en) * | 2022-12-12 | 2023-04-25 | 中建商品混凝土有限公司 | Mortar capable of solidifying heavy metal ions in tungsten tailings and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220617 |