CN111377667A - Multi-solid-waste wall foam concrete heat-insulation building block and preparation method thereof - Google Patents
Multi-solid-waste wall foam concrete heat-insulation building block and preparation method thereof Download PDFInfo
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- CN111377667A CN111377667A CN202010261103.9A CN202010261103A CN111377667A CN 111377667 A CN111377667 A CN 111377667A CN 202010261103 A CN202010261103 A CN 202010261103A CN 111377667 A CN111377667 A CN 111377667A
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- China
- Prior art keywords
- building block
- foam concrete
- insulation building
- solid waste
- heat
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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
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a multi-solid waste wall foam concrete heat-insulation building block and a preparation method thereof, belonging to the field of constructional engineering. The heat-insulation building block comprises the following components in parts by mass: 63.1% of cement, 15.7% of iron tailings, 15.7% of coal gangue, 5.3% of fly ash and 0.2% of polypropylene ester fiber. Tests show that the strength indexes of the multi-solid waste foam concrete heat-insulation building block prepared from 63.1% of cement, 15.7% of iron tailings, 15.7% of coal gangue, 5.3% of fly ash and 0.2% of polypropylene ester fiber all meet the industrial standard, the heat-insulation performance of the multi-solid waste foam concrete heat-insulation building block reaches the average heat-insulation capacity of most heat-insulation building blocks on the market at present, and the cost of the product is reduced to the lowest under the condition of ensuring the performance.
Description
Technical Field
The invention relates to a multi-solid waste wall foam concrete heat-insulation building block and a preparation method thereof, belonging to the field of constructional engineering.
Background
The problem of wall insulation in northern areas of China is always an important problem in building construction engineering, most of the existing insulation block materials are aerated concrete and foam concrete, a large amount of cement and other building raw materials are consumed for production, in order to reduce the consumption of cement, iron tailings and coal gangue with high silicon dioxide content are used for replacing part of cement components, and the optimum proportion is provided on the premise of ensuring the density grade, so that the multi-solid waste wall foam concrete insulation block is prepared.
Disclosure of Invention
In order to solve the technical problems, the invention provides a multi-solid waste wall body foam concrete heat-insulation building block and a preparation method thereof.
The technical scheme adopted by the invention is as follows:
the multi-solid waste wall foam concrete heat-insulation building block comprises the following components in parts by mass: iron tailings, fly ash, coal gangue, cement and polypropylene ester fiber 0.2%.
Further, the iron tailings comprise the following components in parts by weight: 55-60% of silicon dioxide, 8-15% of aluminum oxide, 3-8% of calcium oxide, 8-15% of ferric oxide, 3-8% of magnesium oxide and 3-5% of sulfur trioxide.
Further, the coal gangue comprises the following components in parts by weight: 50-60% of silicon dioxide, 20-35% of aluminum oxide, 2-15% of ferric oxide, 1-3% of calcium oxide and 1-3% of magnesium oxide.
Further, the fly ash comprises the following components in parts by weight: 30-40% of aluminum oxide, 25-30% of silicon dioxide, 25-30% of ferric oxide, 3-5% of calcium oxide and 3-5% of magnesium oxide.
The preparation method of the multi-solid waste wall foam concrete heat-insulation building block comprises the following steps:
(1) crushing the iron tailings, screening the crushed iron tailings into particles with 30-100 meshes, and grinding the iron tailings into powder after screening;
(2) crushing and screening coal gangue into particles of 30-100 meshes, and grinding the coal gangue into powder after screening;
(3) sieving 20-50 mesh particles of fly ash, and adding water into the fly ash for wet milling;
(4) mixing the cement with the materials prepared in the previous three steps according to the weight ratio of 12:3:3: 1;
(5) injecting the mixture obtained in the step (4) into a stirring vehicle, adding water and hydrogen peroxide containing potassium permanganate, adding 0.2% of polypropylene ester fiber by total mass, and stirring, wherein the water-to-glue ratio is controlled to be about 0.5;
(6) stirring thoroughly, standing, placing into mold, steam curing for 28 days, and registering density of the prepared part after demolding to be about 600Kg/m3The multi-solid waste wall foam concrete heat-insulating building block.
Furthermore, the hydrogen peroxide is a foaming agent, the volume ratio of the hydrogen peroxide to water is 1:3, and potassium permanganate is an excitant.
The invention has the beneficial effects that:
tests show that the strength indexes of the multi-solid waste foam concrete heat-insulation building block prepared from 63.1% of cement, 15.7% of iron tailings, 15.7% of coal gangue, 5.3% of fly ash and 0.2% of polypropylene ester fiber all meet the industrial standard, the heat-insulation performance of the multi-solid waste foam concrete heat-insulation building block reaches the average heat-insulation capacity of most heat-insulation building blocks on the market at present, and the cost of the product is reduced to the lowest under the condition of ensuring the performance.
Detailed Description
The materials, methods and apparatus used in the following examples, which are not specifically illustrated, are conventional in the art and are commercially available to those of ordinary skill in the art.
In addition, in the following description of the present invention, the meaning of "plurality", and "plural" is two or more unless otherwise specified.
The present invention is described in further detail below, but the following detailed description is not to be construed as limiting the invention.
The multi-solid waste wall foam concrete heat-insulation building block comprises the following components in parts by mass: iron tailings, fly ash, coal gangue, cement and polypropylene ester fiber 0.2%.
The iron tailings comprise the following components in parts by weight: 55-60% of silicon dioxide, 8-15% of aluminum oxide, 3-8% of calcium oxide, 8-15% of ferric oxide, 3-8% of magnesium oxide and 3-5% of sulfur trioxide.
The coal gangue comprises the following components in parts by weight: 50-60% of silicon dioxide, 20-35% of aluminum oxide, 2-15% of ferric oxide, 1-3% of calcium oxide and 1-3% of magnesium oxide.
The fly ash comprises the following components in parts by weight: 30-40% of aluminum oxide, 25-30% of silicon dioxide, 25-30% of ferric oxide, 3-5% of calcium oxide and 3-5% of magnesium oxide.
The preparation method of the multi-solid waste wall foam concrete heat-insulation building block comprises the following steps:
(1) crushing the iron tailings, screening the crushed iron tailings into particles with 30-100 meshes, and grinding the iron tailings into powder after screening;
(2) crushing and screening coal gangue into particles of 30-100 meshes, and grinding the coal gangue into powder after screening;
(3) sieving 20-50 mesh particles of fly ash, and adding water into the fly ash for wet milling;
(4) mixing the cement with the materials prepared in the previous three steps according to the weight ratio of 12:3:3: 1;
(5) injecting the mixture obtained in the step (4) into a stirring vehicle, adding water and hydrogen peroxide containing potassium permanganate, adding 0.2% of polypropylene ester fiber by total mass, and stirring, wherein the water-to-glue ratio is controlled to be about 0.5;
(6) stirring thoroughly, standing, placing into mold, steam curing for 28 days, and registering density of the prepared part after demolding to be about 600Kg/m3The multi-solid waste wall foam concrete heat-insulating building block.
The hydrogen peroxide is a foaming agent, the volume ratio of the hydrogen peroxide to water is 1:3, and potassium permanganate is an excitant.
The invention makes full use of the following equation;
3(CaO · SiO2) +6H2O =3CaO · 2SiO2 · 3H2O (colloidal) +3ca (oh)2 (crystalline)
2(2CaO · SiO2) +4H2O =3CaO · 2SiO2 · 3H2O + ca (oh)2 (crystalline)
3CaO · Al2O3+6H2O =3CaO · Al2O3 · 6H2O (crystalline)
4CaO · Al2O3 · Fe2O3+7H2O =3CaO · Al2O3 · 6H2O + CaO · Fe2O3 · H2O (colloid)
2KMnO4+3H202=2MnO2+2KOH +2H20+3O2 (gas)
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. The utility model provides a wall body foam concrete insulation block that gives up more admittedly which characterized in that: the heat-insulation building block comprises the following components in parts by mass: 63.1% of cement, 15.7% of iron tailings, 15.7% of coal gangue, 5.3% of fly ash and 0.2% of polypropylene ester fiber.
2. The multi-solid waste wall foam concrete thermal insulation building block according to claim 1, characterized in that: the iron tailings comprise the following components in parts by weight: 55-60% of silicon dioxide, 8-15% of aluminum oxide, 3-8% of calcium oxide, 8-15% of ferric oxide, 3-8% of magnesium oxide and 3-5% of sulfur trioxide.
3. The multi-solid waste wall foam concrete thermal insulation building block according to claim 1, characterized in that: the coal gangue comprises the following components in parts by weight: 50-60% of silicon dioxide, 20-35% of aluminum oxide, 2-15% of ferric oxide, 1-3% of calcium oxide and 1-3% of magnesium oxide.
4. The multi-solid waste wall foam concrete thermal insulation building block according to claim 1, characterized in that: the fly ash comprises the following components in parts by weight: 30-40% of aluminum oxide, 25-30% of silicon dioxide, 25-30% of ferric oxide, 3-5% of calcium oxide and 3-5% of magnesium oxide.
5. The method for preparing the multi-solid waste wall foam concrete thermal insulation building block as claimed in any one of claims 1 to 4, wherein the method comprises the following steps: the method comprises the following steps:
crushing the iron tailings, screening the crushed iron tailings into particles with 30-100 meshes, and grinding the iron tailings into powder after screening;
crushing and screening coal gangue into particles of 30-100 meshes, and grinding the coal gangue into powder after screening;
sieving 20-50 mesh particles of fly ash, and adding water into the fly ash for wet milling;
mixing the cement with the materials prepared in the previous three steps according to the weight ratio of 12:3:3: 1;
injecting the mixture obtained in the step (4) into a stirring vehicle, adding water and hydrogen peroxide containing potassium permanganate, adding 0.2% of polypropylene ester fiber by total mass, and stirring, wherein the water-to-glue ratio is controlled to be about 0.5;
stirring thoroughly, standing, placing into mold, steam curing for 28 days, and registering density of the prepared part after demolding to be about 600Kg/m3The multi-solid waste wall foam concrete heat-insulating building block.
6. The preparation method of the multi-solid waste wall foam concrete thermal insulation building block according to claim 5, characterized in that: the hydrogen peroxide is a foaming agent, the volume ratio of the hydrogen peroxide to water is 1:3, and potassium permanganate is an excitant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010261103.9A CN111377667A (en) | 2020-04-03 | 2020-04-03 | Multi-solid-waste wall foam concrete heat-insulation building block and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010261103.9A CN111377667A (en) | 2020-04-03 | 2020-04-03 | Multi-solid-waste wall foam concrete heat-insulation building block and preparation method thereof |
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| Publication Number | Publication Date |
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| CN111377667A true CN111377667A (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010261103.9A Pending CN111377667A (en) | 2020-04-03 | 2020-04-03 | Multi-solid-waste wall foam concrete heat-insulation building block and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723803A (en) * | 2021-02-01 | 2021-04-30 | 东北大学 | Alkali-activated cementing material doped with high-silicon iron tailings and red mud and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182175A (en) * | 2007-11-22 | 2008-05-21 | 重庆大学 | Coal gangue-fly ash foam concrete |
| CN101723632A (en) * | 2009-11-23 | 2010-06-09 | 河北科技大学 | Process for preparing load-bearing foam concrete blocks |
-
2020
- 2020-04-03 CN CN202010261103.9A patent/CN111377667A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182175A (en) * | 2007-11-22 | 2008-05-21 | 重庆大学 | Coal gangue-fly ash foam concrete |
| CN101723632A (en) * | 2009-11-23 | 2010-06-09 | 河北科技大学 | Process for preparing load-bearing foam concrete blocks |
Non-Patent Citations (1)
| Title |
|---|
| 张巨松 等: "《泡沫混凝土》", 31 January 2016, 哈尔滨工业大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723803A (en) * | 2021-02-01 | 2021-04-30 | 东北大学 | Alkali-activated cementing material doped with high-silicon iron tailings and red mud and preparation method thereof |
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Application publication date: 20200707 |