CN102503267B - Flame-retardant type light-weight heat-preservation wall body material mixed with iron tailings and preparation method thereof - Google Patents
Flame-retardant type light-weight heat-preservation wall body material mixed with iron tailings and preparation method thereof Download PDFInfo
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- CN102503267B CN102503267B CN201110326060.9A CN201110326060A CN102503267B CN 102503267 B CN102503267 B CN 102503267B CN 201110326060 A CN201110326060 A CN 201110326060A CN 102503267 B CN102503267 B CN 102503267B
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Abstract
The invention discloses a flame-retardant type light-weight heat-preservation wall body material mixed with iron tailings and a preparation method thereof. Firstly, a fixed quantity of cement, a carboxylic acid family high-efficiency water reducing agent and water are stirred after the cement, the carboxylic acid family high-efficiency water reducing agent and the water are mixed, then a proper quantity of alkali exciting agent and iron tailings are added, the mixture is stirred so as to form slurry, finally ammonium polyphosphate and polystyrene (PS) foam are added, the mixture is stirred so as to prepare a mixing material, the mixing material after entering a mould is formed in a vibrating way, and the mixture is cured in a standard way for 8 hours to 12 hours, is demoulded and is cured for 5 days to 28 days after being demoulded according to a curing condition until the mixture can be stacked so as to finish the preparing process of a product after transportation; and the prepared wall body material has the excellent performances of small volumetric weight, high mechanical strength, low heat conduction coefficient, good heat-preservation effect and the like and can be widely applied to the heat insulation and the heat preservation of construction positions, such as the inner wall of a building with a frame structure, various non-bearing walls, decorative materials, a roof and the like.
Description
(i) technical field: the present invention relates to light heat-insulation wall material and preparation method, flame retardant type light heat-insulation wall material and preparation method that the iron tailings of specifically take is raw material production.
(ii) background technology: the mine tailing that the exploitation of Mineral resources and utilization produce severe contamination environment.Not only cost of business operation is high to store up iron tailings, and has taken a large amount of soils, and soil, water body are polluted, and destroys ecotope, becomes potential safety hazard.The related data demonstration, the utilization ratio of iron tailings is very low, annual nearly 300,000,000 tons of the iron tailings of discharging of China, comprehensive utilization ratio is but less than 20%, and high-end product is seldom.Discarded PS foam stable chemical performance, be difficult for degraded, easily cause well-known " white pollution ", but it be again the good light material of heat-insulating property, it is gathered materials and the material made, density is low, thermal conductivity is little, insulation, sound insulation.At present also have and to utilize iron tailings and admixture PS foam to prepare materials for wall, but because design of components is unreasonable, the activity of iron tailings effectively do not excited, do not consider the flame retardant resistance of product during admixture PS foam, and also need to mix as materials such as river sand, cause complicated process of preparation, the iron tailings utilization ratio is not high, prepared materials for wall does not have flame retardant resistance, and low strength can not meet performance and the demand for security of current buildings light heat-insulation wall material.
(iii) summary of the invention: the purpose of this invention is to provide that to take cement be a kind of flame retardant type light heat-insulation wall material and the preparation method that packing material is produced as gelling material, iron tailings as main raw material, PS foam; Made material has the excellent properties such as unit weight is little, mechanical strength is high, thermal conductivity is low, high insulating effect, can be widely used in the interior wall of frame structure building and the construction sites such as heat-insulation and heat-preservation on all kinds of non-load bearing wall, finishing material and roof.
Flame retardant type light heat-insulation wall material prepared by the present invention, by the raw material of following portions by weight ratio, made:
Cement 22-25; High Efficient Diswater 0.25-0.3; Alkali-activator 4.5-5.5; Water 13.2-17.5; Ammonium polyphosphate (short chain APP) 2.6～3.5; PS foam 1.1-1.5; The iron tailings 45-55 preparation method who mixes iron tailings flame retardant type light heat-insulation wall material of the present invention, comprise the steps: 1. to fetch water in proportion and High Efficient Diswater adds in stirred reactor, after then adding cement mixing evenly, stirs 1～3min; 2. alkali-activator and iron tailings are added in reactor to be uniformly mixed to make slurry, then obtain compound after adding reactor to stir PS foam, ammonium polyphosphate; 3. compound is injected to mould jolt ramming moulding; 4. the die trial after moulding is placed in the maintenance demoulding in 8～12 hours in standard curing box, but the maintenance of demoulding backsight curing condition completes the product preparation process in 5-28 days to piling, transportation.
Particular product performance parameters requires: 1) unit dry weight<1000 Kg/m
32) 28 days ultimate compression strength>2.0Mpa; 3) thermal conductivity<0.231 W/m.K; 4) oxygen index>32; 5) product surface is smooth, even, without cracking.
The present invention compared with prior art has following features:
1, for the component characteristics of iron tailings, the present invention, by the admixture alkali-activator, has improved the activity of iron tailings, and has therefore improved the mechanical property of product.
2, than other technology, the present invention has reduced PS foam addition content, simultaneously, has mixed ammonium polyphosphate flame retardant in preparation process, has guaranteed the flame retardant properties of product and has used safety.
3, the present invention utilizes iron tailings to replace river sand fully, and, without steam-cured, has both avoided the relevant costs such as river sand buying, transportation, again because simplified technical process and production process, and has reduced equipment investment and working cost.
4, the present invention is under the prerequisite that guarantees the key indexs such as unit weight and thermal conductivity, for the light heat insulation material that the product mechanical property utilizes iron tailings to prepare with respect to other, have greatly improved, within 28 days, ultimate compression strength can reach 3.0-6.0Mpa, is the desirable ultimate compression strength of light heat insulation material.
The present invention can use large, the active not high and land occupation of density, contaminate environment and ecological iron tailings, has effectively realized the resource utilization of industrial tailings, has alleviated the series of environmental problems caused because of the iron tailings accumulation simultaneously; Use the PS foam that is difficult for degraded, can alleviate the pressure of white pollution; By exciting, improved the activity of iron tailings, reduced the jelling agent consumption; The product unit weight of preparation is little, lightweight, mechanical strength is high, high insulating effect, belongs to the novel building energy-saving and heat-insulating material; The fire-retardant finish that product is done, effectively promoted product level; Can greatly promote manufacturing enterprise's competitive capacity because production cost is low.In addition, raw material of the present invention all can be gathered materials on the spot, cause is without materials such as river sand, production technique is simple, and without steam-cured, relevant performance index are adjusted by proportioning, can meet the service requirementss such as varying strength, heat insulation effect, without any poisonous, obnoxious flavour and generation of waste materials, belong to the environmental friendliness technology in whole production process.
This product has the characteristics such as unit weight is little, thermal conductivity is low, mechanical strength is high, high insulating effect.Used iron tailings and the waste and old PS foam that affects environment and ecology in the process of producing light heat insulation material, and made fire-retardant finish, both can turn waste into wealth, can reduce production costs again, meet the industry policy that country promotes light thermal-insulation and building energy conservation simultaneously, improve product level, not only can, for enterprise brings considerable economic benefit, also have important environment protection significance.
(4) embodiment:
Embodiment 1
Mix iron tailings flame retardant type light heat-insulation wall material, made by the raw material of following portions by weight ratio:
Cement 23; High Efficient Diswater 0.28; Alkali-activator 5; Water 16; Ammonium polyphosphate (APP) 3.2; PS foam 1.3; Iron tailings 50.
1.Water intaking and High Efficient Diswater add in stirred reactor, and the strength grade that then adds Huaxin Cement Factory to produce is 42.5 ordinary Portland cements, after mixing, stirs 1～3min; 2. alkali-activator white lime and iron tailings are added in reactor to be uniformly mixed to make slurry, then the foam particle diameter is obtained to compound between the PS foam between 2.36mm and 0.60mm, ammonium polyphosphate (APP) after adding reactor to stir; 3. compound is injected to mould jolt ramming moulding; 4. the die trial after moulding is placed in the maintenance demoulding in 8～12 hours in standard curing box, but the maintenance of demoulding backsight curing condition completes the product preparation in 5-28 days to piling, transportation.
Testing product performance perameter: 1) unit dry weight: 852Kg/m
32) 28 days ultimate compression strength: 3.56Mpa; 3) thermal conductivity: 0.158 W/m.K; 4) oxygen index>32; 5) product surface is smooth, even, without cracking, belongs to light heat-insulation wall material.
Embodiment 2
Mix iron tailings flame retardant type light heat-insulation wall material, made by the raw material of following portions by weight ratio:
Cement 23; High Efficient Diswater 0.28; Alkali-activator 5.2; Water 13.8; Ammonium polyphosphate (APP) 2.8; PS foam 1.2; Iron tailings 52.
1.Water intaking and High Efficient Diswater add in stirred reactor, and the strength grade that then adds Huaxin Cement Factory to produce is 42.5 ordinary Portland cements, after mixing, stirs 1～3min; 2. alkali-activator white lime and iron tailings are added in reactor to be uniformly mixed to make slurry, then the foam particle diameter is obtained to compound between the PS foam between 2.36mm and 0.60mm, ammonium polyphosphate (APP) after adding reactor to stir; 3. compound is injected to mould jolt ramming moulding; 4. the die trial after moulding is placed in the maintenance demoulding in 8～12 hours in standard curing box, but the maintenance of demoulding backsight curing condition completes the product preparation in 5-28 days to piling, transportation.
Testing product performance perameter: 1) unit dry weight: 871 Kg/m
32) 28 days ultimate compression strength: 3.96 Mpa; 3) thermal conductivity: 0.162 W/m.K; 4) oxygen index>32; 5) product surface is smooth, even, without cracking, belongs to light heat-insulation wall material.
Embodiment 3
Mix iron tailings flame retardant type light heat-insulation wall material, made by the raw material of following portions by weight ratio:
Cement 25; High Efficient Diswater 0.3; Alkali-activator 4.8; Water 17.5; Ammonium polyphosphate (APP) 3.5; PS foam 1.3; Iron tailings 48.
1.Water intaking and High Efficient Diswater add in stirred reactor, and the strength grade that then adds Huaxin Cement Factory to produce is 42.5 ordinary Portland cements, after mixing, stirs 1～3min; 2. alkali-activator white lime and iron tailings are added in reactor to be uniformly mixed to make slurry, then the foam particle diameter is obtained to compound between the PS foam between 2.36mm and 0.60mm, ammonium polyphosphate (APP) after adding reactor to stir; 3. compound is injected to mould jolt ramming moulding; 4. the die trial after moulding is placed in the maintenance demoulding in 8～12 hours in standard curing box, but the maintenance of demoulding backsight curing condition completes the product preparation in 5-28 days to piling, transportation.
Testing product performance perameter: 1) unit dry weight: 866 Kg/m
32) 28 days ultimate compression strength: 5.26 Mpa; 3) thermal conductivity: 0.159 W/m.K; 4) oxygen index>32; 5) product surface is smooth, even, without cracking, belongs to light heat-insulation wall material.
Embodiment 4
Mix iron tailings flame retardant type light heat-insulation wall material, made by the raw material of following portions by weight ratio:
Cement 22; High Efficient Diswater 0.25; Alkali-activator 5.5; Water 13.2; Ammonium polyphosphate (APP) 2.6; PS foam 1.1; Iron tailings 55.
1.Water intaking and High Efficient Diswater add in stirred reactor, and the strength grade that then adds Huaxin Cement Factory to produce is 42.5 ordinary Portland cements, after mixing, stirs 1～3min; 2. alkali-activator white lime and iron tailings are added in reactor to be uniformly mixed to make slurry, then the foam particle diameter is obtained to compound between the PS foam between 2.36mm and 0.60mm, ammonium polyphosphate (APP) after adding reactor to stir; 3. compound is injected to mould jolt ramming moulding; 4. the die trial after moulding is placed in the maintenance demoulding in 8～12 hours in standard curing box, but the maintenance of demoulding backsight curing condition completes the product preparation in 5-28 days to piling, transportation.
Testing product performance perameter: 1) unit dry weight: 876Kg/m
32) 28 days ultimate compression strength:
3.32Mpa; 3) thermal conductivity: 0.160W/m.K; 4) oxygen index > 32; 5) product surface is smooth, even, without cracking, belongs to light heat-insulation wall material.
Embodiment 5
Mix iron tailings flame retardant type light heat-insulation wall material, made by the raw material of following portions by weight ratio:
Cement 24; High Efficient Diswater 0.29; Alkali-activator 5.2; Water 15.6; Ammonium polyphosphate (APP) 3.1; PS foam 1.5; Iron tailings 52.
1.Water intaking and High Efficient Diswater add in stirred reactor, and the strength grade that then adds Huaxin Cement Factory to produce is 42.5 ordinary Portland cements, after mixing, stirs 1～3min; 2. alkali-activator white lime and iron tailings are added in reactor to be uniformly mixed to make slurry, then the foam particle diameter is obtained to compound between the PS foam between 2.36mm and 0.60mm, ammonium polyphosphate (APP) after adding reactor to stir; 3. compound is injected to mould jolt ramming moulding; 4. the die trial after moulding is placed in the maintenance demoulding in 8～12 hours in standard curing box, but the maintenance of demoulding backsight curing condition completes the product preparation in 5-28 days to piling, transportation.
Testing product performance perameter: 1) unit dry weight: 789Kg/m
32) 28 days ultimate compression strength:
3.05Mpa; 3) thermal conductivity: 0.141W/m.K; 4) oxygen index > 32; 5) product surface is smooth, even, without cracking, belongs to light heat-insulation wall material.
Embodiment 6
Mix iron tailings flame retardant type light heat-insulation wall material, made by the raw material of following portions by weight ratio:
Cement 22; High Efficient Diswater 0.25; Alkali-activator 4.5; Water 14.3; Ammonium polyphosphate (APP) 2.9; PS foam 1.1; Iron tailings 45.
1.Water intaking and High Efficient Diswater add in stirred reactor, and the strength grade that then adds Huaxin Cement Factory to produce is 42.5 ordinary Portland cements, after mixing, stirs 1～3min; 2. alkali-activator white lime and iron tailings are added in reactor to be uniformly mixed to make slurry, then the foam particle diameter is obtained to compound between the PS foam between 2.36mm and 0.60mm, ammonium polyphosphate (APP) after adding reactor to stir; 3. compound is injected to mould jolt ramming moulding; 4. the die trial after moulding is placed in the maintenance demoulding in 8～12 hours in standard curing box, but the maintenance of demoulding backsight curing condition completes the product preparation in 5-28 days to piling, transportation.
Testing product performance perameter: 1) unit dry weight: 873Kg/m
32) 28 days ultimate compression strength:
3.11 Mpa; 3) thermal conductivity: 0.156W/m.K; 4) oxygen index > 32; 5) product surface is smooth, even, without cracking, belongs to light heat-insulation wall material.
The iron tailings used in above-described embodiment is taken from Ling Xiang dressing-works, Daye City, Hubei Province, tap density is 2000～2200 kg/m3, by " industrial solid wastes sampling sample making technology standard " and " solid waste analysis of experiments evaluation handbook " described method collection, and drying treatment; The ordinary Portland cement that the strength grade that cement is used Huaxin Cement Factory to produce is 42.5, commercially available product; High Efficient Diswater, alkali-activator and ammonium polyphosphate flame retardant (APP) are commercially available product.The PS foam derives from salvage station.
Claims (2)
1. mix iron tailings flame retardant type light heat-insulation wall material, it is characterized in that being made by the raw material of following portions by weight ratio:
Cement 22-25; High Efficient Diswater 0.25-0.3; Alkali-activator 4.5-5.5; Water 13.2-17.5; Ammonium polyphosphate 2.6～3.5; PS foam 1.1-1.5; Iron tailings 45-55.
2. the preparation method who mixes iron tailings flame retardant type light heat-insulation wall material as claimed in claim 1, it is characterized in that comprising the steps: 1. fetching water in proportion and High Efficient Diswater adds in stirred reactor, then, after adding cement mixing evenly, stir 1～3min; 2. add mix and blend in reactor to make slip alkali-activator and iron tailings, then obtain compound after adding reactor to stir PS foam, ammonium polyphosphate; 3. compound is injected to mould jolt ramming moulding; 4. the mould after moulding is placed in the maintenance demoulding in 8～12 hours in standard curing box, but the maintenance of demoulding backsight curing condition completes the product preparation process in 5-28 days to piling, transportation; Require product performance: 1) unit dry weight<1000Kg/m
32) 28 days ultimate compression strength>2.0MPa; 3) thermal conductivity<0.231W/m.K; 4) oxygen index>32; 5) product surface is smooth, even, without cracking.
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| CN201110326060.9A CN102503267B (en) | 2011-10-25 | 2011-10-25 | Flame-retardant type light-weight heat-preservation wall body material mixed with iron tailings and preparation method thereof |
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| CN104030592A (en) * | 2014-07-01 | 2014-09-10 | 把正春 | Method for preparing environment-friendly activation mineral material addition exciting agent of ferrochrome slag |
| CN104150826B (en) * | 2014-07-30 | 2016-05-11 | 泗阳县弘达新型墙体材料有限公司 | A kind of alumina doped mine tailing flame retardant type insulating wall material and preparation method thereof |
| CN105236893B (en) * | 2015-09-30 | 2017-10-31 | 湖北理工学院 | One kind mixes ultralight pearlite heat-insulation plate of iron tailings and preparation method thereof |
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| CN101139213A (en) * | 2006-09-04 | 2008-03-12 | 齐永先 | Foaming cement and preparation method and usage thereof |
| CN101139189B (en) * | 2007-08-10 | 2010-06-16 | 陈忠平 | Vitreous pearlite inorganic composite heat-insulating material and method for making same |
| CN101653960B (en) * | 2009-08-26 | 2011-10-05 | 武汉科技大学 | Light heat-insulation and heat-preservation material and preparation method thereof |
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