CN104591601B - Super poly-Coal Gangue-Concrete and preparation method thereof - Google Patents
Super poly-Coal Gangue-Concrete and preparation method thereof Download PDFInfo
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- CN104591601B CN104591601B CN201510036481.6A CN201510036481A CN104591601B CN 104591601 B CN104591601 B CN 104591601B CN 201510036481 A CN201510036481 A CN 201510036481A CN 104591601 B CN104591601 B CN 104591601B
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- 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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Abstract
The invention discloses a kind of super poly-Coal Gangue-Concrete and preparation method thereof, it is characterised in that: the raw material of following weight portion is made: diisocyanate 13 parts, polyether polyol 13 parts, gangue 40 parts, sand 33 parts, conch meal volume are the 5% of gangue total amount, glass bead volume is the 2% of gangue total amount, stannous octoate volume is diisocyanate total amount 0.1% 0.5%, ammoniomagnesium phosphate volume is the 0.35% of diisocyanate total amount, inorganic aluminate water-proof agent volume is the 0.1% of gangue total amount.The super poly-Coal Gangue-Concrete heat conductivity of the present invention is 0.018W/W/ (m K), and rupture strength reaches 7.5MPa, and comprcssive strength reaches 9.7Mpa, and water absorption rate is 10.22%.
Description
Technical field
The present invention relates to a kind of New Coal Mine tunnel insulation material, super poly-Coal Gangue-Concrete, concrete innovation is to utilize to gather
Urethane, as organic binder, substitutes the cement in conventional concrete building materials；With gangue as primary raw material, substitute tradition mixed
Stone in solidifying soil raw material composition, useless, environmental protection energy-conservation, sharp.
Background technology
Coal industry occupies leading position in China's energy industry, and the demand of coal is being significantly increased year by year.Along with mining depth
Degree is deepened, and underground thermal pollution problem becomes increasingly conspicuous, and has had a strong impact on the healthy of staff and has exploited being smoothed out of work,
Causing accident rate to rise, production efficiency declines.Underground thermal pollution problems demand solves.
Existing underground thermal pollution control measures mainly has artificial cooling cooling (mine air conditioner cooling) and unartificial refrigeration cool-down two kinds.
Unartificial refrigeration mainly reduces mine temperature by the method such as ventilation, rational expanding design, mining with stowing, minimizing thermal source.
Air-conditioning temperature-reducing common are the distinguished and admirable cooling in local and mine central refrigerating.It is, in general, that the investment of unartificial refrigeration and operating cost
Want much less relative to artificial cooling in a short time, therefore combine the concrete condition of mine, the unartificial refrigerating method of many attention.When
Use unartificial refrigeration measure, when all cannot solve deep hot and humid heat evil problem in the case of strengthening face air volume, just examine
Consider and use artificial cooling cooling (mine air conditioner falling temperature technique).
The deficiency that mine Insulation exists at present is: unartificial refrigeration cool-down DeGrain or complex operation, and artificial cooling
Although cooling cooling is substantially, but its investment is the highest with operating cost.For underground thermal pollution problem, it is possible to develop one peace
Quan Xinggao, heat preserving and insulating material with low cost, that efficiency is high are guardian technique difficult problems in the urgent need to address in coal production.
Summary of the invention
It is desirable to provide a kind of thermal and insulating performance is good, intensity is high, the novel environment friendly compound insulating material of light weight.
The present invention solves technical problem, adopts the following technical scheme that
The super poly-Coal Gangue-Concrete of the present invention, its feature is: be made up of the raw material of following weight portion: diisocyanate 13 parts, poly-
Ethoxylated polyhydric alcohol 13 parts, gangue 40 parts, sand 33 parts, conch meal volume are the 5% of gangue total amount, glass bead volume
For gangue total amount 2%, stannous octoate volume be the 0.1%-0.5% of diisocyanate total amount, ammoniomagnesium phosphate volume be two isocyanides
The 0.35% of acid esters total amount, inorganic aluminate water-proof agent volume is the 0.1% of gangue total amount.
The super poly-Coal Gangue-Concrete of the present invention is to be prepared as follows: by proportioning by the gangue of half quality, half quality
Sand, the conch meal of half quality, the glass bead of half quality, the ammoniomagnesium phosphate of half quality, half quality inorganic
Joining after the stannous octoate mixing of aluminate water-proof agent and all-mass in the diisocyanate of all-mass, mix homogeneously forms A
Material；
By proportioning by the gangue of second half quality, the sand of second half quality, the conch meal of second half quality, second half quality
Glass bead, the ammoniomagnesium phosphate of second half quality and second half quality inorganic aluminate water-proof agent mixing after join all-mass
Polyether polyol in, mix homogeneously formed B material；
A material and B material are mixed and stirred for uniform, curing molding, obtain super poly-Coal Gangue-Concrete.
It is to stir 5min with the speed of 80r/min after described A material and B material mixing.The condition of described curing molding be room temperature,
20～80min are solidified under 20Mpa pressure.
Product of the present invention, using polyurethane as organic binder, substitutes the cement in conventional concrete building materials, with gangue, sand,
The inorganic materials such as glass bead are as aggregate, and wherein primary raw material characteristic is as follows:
(1) polyurethane: product of the present invention uses dual-component polyurethane, is synthesized gained by polyether polyol and diisocyanate room temperature,
Now with the current.The major parameter of the two is shown in Table 1, table 2.
The major parameter of table 1 diisocyanate
The major parameter of table 2 polyether polyol
Wherein reacted shown in the chemical reaction such as formula (1) of generation polyurethane by diisocyanate and polyether polyol:
In adhesive for polyurethane preparation and solidification process, what its dominant response occurred was isocyanates with active dydrogen compounds is anti-
Should, outside also have the self-polymeric reaction of isocyanates and some other cross-linking reactions etc., polyurethane chemistry formula is anti-with the chemistry of cyanate
Based on Ying, it it be the pith of adhesive for polyurethane reaction mechanism.Adhesive for polyurethane preparation in most common be isocyanates and
The reaction of hydroxy compounds (alcohol), and the molecular weight of polyether polyol and functional group are different, reaction rate is the most different, for official
Can roll into a ball identical polyethers, the reaction rate that molecular weight is little is big；The situation that hydroxy radical content is identical, the speed that degree of functionality is big is big, reaction
Thing viscosity increases.
Catalyst can reduce reaction activity, makes reaction rate accelerate, and shortens the response time, controls side reaction, therefore at polyurethane
Adhesive preparation is frequently used catalyst.Requirement to catalyst is usually: catalytic is high, selectivity is strong.The present invention uses
Catalyst be stannous octoate.
(2) gangue: gangue is the solid waste of discharge during coal mining process and coal washing.At present, China's gangue is actual
Utilization rate is low, mainly or in a large number stores up or pours into river, not only land occupation, but also causing environmental pollution.This
Bright using gangue as main production raw material, it is achieved that twice laid, save the practical significance of the energy.Its chemical composition is shown in Table 3.
The chemical composition of table 3 gangue
Beneficial effects of the present invention is embodied in:
1, the super poly-Coal Gangue-Concrete heat conductivity of the present invention is 0.018W/W/ (m K), less than 0.05W/ (m K), belongs to efficiently guarantor
Adiabator, heat-insulating property is superior；Rupture strength reaches 7.5MPa, and comprcssive strength reaches 9.7MPa, meets GB/T20473-2006
The standard of " building heat-insulating mortar "；Water absorption rate is 10.22%, and water resistance is good, mildew-resistant preventing hydration；Fire protection flame retarding, safety
Property is good；Easy construction, comprehensive cost is relatively low；
2, the super poly-Coal Gangue-Concrete of the present invention, production technology is simple, easily operates, and investment of production equipment is little；The raw material used
42% from coal industry garbage, makes full use of waste residue, waste material, the saving energy, protects farmland, reduces pollution, is to improve
The Successful Practice product of construction material function, has great economic results in society；
3, the super poly-Coal Gangue-Concrete of the present invention is short for hardening time, i.e. hardens in 10～30 minutes, produces intensity, after three days
Intensity reaches maximum, is basically unchanged, and for relatively conventional vacuum mortar, hardening time is greatly shortened, and acts not only as mine insulation
Material, civil buildings insulation material, also can be widely used to colliery bolt-spary supports, anchoring, coal and rock are reinforced, seal, block,
Speedily carry out rescue work, waterproof, Rapid-Repair etc., have a extensive future；
4, the cement that the present invention substitutes in conventional vacuum mortar with organic material polyurethane is greatly improved as Binder Materials, viscosity, and
Avoid hydration reaction, while proof strength, also improve its toughness.
Accompanying drawing explanation
Fig. 1 is the TG-DTA curve of the super poly-Coal Gangue-Concrete of the present invention；
Fig. 2 is the infrared spectrogram of the super poly-Coal Gangue-Concrete of the present invention.
Specific embodiment
The present embodiment prepares super poly-Coal Gangue-Concrete as follows:
By proportioning by the gangue of 20 parts, the sand of 16.5 parts, the conch meal of 1 part, the glass bead of 0.4 part, 0.02275 part
Ammoniomagnesium phosphate, the inorganic aluminate water-proof agent of 0.02 part and 0.0325 part stannous octoate mixing after join two isocyanides of 13 parts
In acid esters, mix homogeneously forms A material；
By proportioning by the gangue of 20 parts, the sand of 16.5 parts, the conch meal of 1 part, the glass bead of 0.4 part, 0.02275 part
Ammoniomagnesium phosphate and the inorganic aluminate water-proof agent mixing of 0.02 part after join in the polyether polyol of 13 parts, mix homogeneously forms B
Material；
A material and B material mixed and stir 5min with the speed of 80r/min, under room temperature, 20Mpa pressure, then solidifying 50min,
Obtain super poly-Coal Gangue-Concrete.
The physical property of poly-Coal Gangue-Concrete super to the present embodiment gained is done following detection and is analyzed:
Super poly-Coal Gangue-Concrete is fabricated to the examination that size is 40mm × 40mm × 160mm and 100mm × 100mm × 10mm respectively
Sample, wherein 40mm × 40mm × 160mm sample is in order to test its bending and compressive strength, dry apparent density, water absorption rate,
100mm × 100mm × 10mm sample is in order to test its heat conductivity, and test result is as follows:
Table 4 be super poly-Coal Gangue-Concrete hardening after quantitative measurement result and with GB/T20473-2006 " building heat-insulating mortar "
Performance requirement contrasts.
Physical property after the hardening of table 4 super poly-Coal Gangue-Concrete contrasts with GB/T20473-2006
(1) super poly-Coal Gangue-Concrete heat conductivity
Heat conductivity is measuring by material heat conducting power size own, and the coefficient of heat conduction is not only relevant with porosity, and
And it is also relevant with the size of hole, distribution, character and connection situation.Heat conductivity is the specific targets weighing material heat-proof quality,
The mensuration of the super poly-coal gangue concrete heat conductivity of the present invention uses TC-II thermal conductivity measuring apparatus, utilizes Fourier heat conduction law
Principle measures.It is 0.018W/ (m K) by the heat conductivity of standard test product of the present invention, belongs to thermal insulation material, heat insulating ability
Can be notable.
(2) super poly-Coal Gangue-Concrete bending and compressive strength
The bending and compressive strength of super poly-Coal Gangue-Concrete, depends primarily on production technology, formula and organic material kind.According to
GB/T20473-2006 " building heat-insulating mortar " specifies, GB I type thermal insulation mortar comprcssive strength >=0.2MPa, GB II type insulation
Mortar comprcssive strength >=0.4MPa.The super poly-Coal Gangue-Concrete comprcssive strength of the present invention reaches 9.7MPa, be 48 times of GB I type,
24 times of GB II type, meet GB/T20473-2006 " building heat-insulating mortar " standard.
(3) super poly-Coal Gangue-Concrete water absorption rate
The water absorption rate of material is the quality ratio with dry sample mass of the adsorbed water of sample open pore.Conventional vacuum mortar is easily inhaled
Water and hydrochemical metamorphism, affect material property.The super poly-Coal Gangue-Concrete water absorption rate of product of the present invention is low, and water resistance is good, and this
Bright material is organic material, and hydration reaction does not occur.Minepit environment humidity is relatively big, uses the super poly-Coal Gangue-Concrete water absorption rate of the present invention
Low, it is possible to prevent cold-heat bridge conduction, produces mildew, hydration reaction etc..
The micro-property of poly-Coal Gangue-Concrete super to the present embodiment gained makees following analysis: samples, smash, grind, uses 80 mesh sieve
Sieve, obtain the sample of fine particle shape, sample is done heat and analyzes and infrared spectrum analysis.
(1) the super poly-hot Analysis on Mechanism of Coal Gangue-Concrete microcosmic
Poly-Coal Gangue-Concrete super to the present invention samples, and carries out the hot Analysis on Mechanism of microcosmic, makees TG-DTA curve, as shown in Figure 1.
TG image from figure understands, and raises with temperature, and sample is gradually weightless.From about 200 DEG C, sample starts weightlessness,
Stopping weightlessness at about 650 DEG C samples, centre has weightlessness at two more apparent.
There is twice exothermic peak in DTA curve, is respectively at 340.278 DEG C and 555.304 DEG C, and occurs at 555.304 DEG C
The area of exothermic peak relatively big, illustrate that sample heat release corresponding at this temperature is most.
In conjunction with TG curve and DTA curve, sample heat release at 340.278 DEG C and 555.304 DEG C, corresponding interval is interior, sample
Mass loss is more apparent, display: heat release is caused by sample mass loss, and mass loss is to raise due to ambient temperature,
Material there occurs that chemical reaction, decomposition cause.
Analyze display: the super poly-Coal Gangue-Concrete of the present invention below 200 DEG C, good thermal stability, from 200 DEG C start decompose, arrive
Decompose more apparent when about 340 DEG C, release big calorimetric, when temperature reaches about 550 DEG C, occur again the most significantly decomposing
Process, during to about 650 DEG C, material substantially decomposes and terminates.And mine working face temperature more than 37 DEG C time, ore deposit easily occurs
Well heat evil, so wall insulation material solid for mine good thermal stability when 200 DEG C, complies fully with requirement.
(2) super poly-Coal Gangue-Concrete infra-red heat Analysis on Mechanism
Poly-Coal Gangue-Concrete super to product of the present invention samples, and carries out the hot Analysis on Mechanism of microcosmic, makees infrared spectrogram, as shown in Figure 2.
Owing to end product is polyurethane, it is N-H (3500～3100cm-1) that analysis obtains the key that wave number is 3446.3cm-1 existence；
Wave number be 1645.1cm-1 exist key be C=O (1680～1630cm-1)；Wave number is that the key that 1035.6cm-1 exists has C-O
(1300～1000cm-1), R-O (1050～1000cm-1), C-N (1350～1000cm-1)；Wave number is that 831.2cm-1 exists
Key be C-H (1000～675cm-1).Shown in the functional group contained in end product such as formula (2), i.e. ammonia ester bond, finally produces
Shown in the chemical structural formula of thing such as formula (3):
Claims (4)
- Super poly-Coal Gangue-Concrete, it is characterised in that: it is made up of the raw material of following weight portion: diisocyanate 13 parts, polyethers are many Unit's alcohol 13 parts, gangue 40 parts, sand 33 parts, conch meal volume are the 5% of gangue total amount, glass bead volume is coal The 2% of spoil total amount, stannous octoate volume be the 0.1%-0.5% of diisocyanate total amount, ammoniomagnesium phosphate volume be diisocyanate The 0.35% of total amount, inorganic aluminate water-proof agent volume is the 0.1% of gangue total amount.
- 2. the preparation method of a super poly-Coal Gangue-Concrete as claimed in claim 1, it is characterised in that carry out as follows:By proportioning by the gangue of half quality, the sand of half quality, the conch meal of half quality, half quality vitreous micro- Join after the stannous octoate mixing of pearl, the ammoniomagnesium phosphate of half quality, the inorganic aluminate water-proof agent of half quality and all-mass In the diisocyanate of all-mass, mix homogeneously forms A material；By proportioning by the gangue of second half quality, the sand of second half quality, the conch meal of second half quality, second half quality Glass bead, the ammoniomagnesium phosphate of second half quality and second half quality inorganic aluminate water-proof agent mixing after join all-mass Polyether polyol in, mix homogeneously formed B material；A material and B material are mixed and stirred for uniform, curing molding, obtain super poly-Coal Gangue-Concrete.
- Preparation method the most according to claim 2, it is characterised in that: it is with 80r/min after described A material and B material mixing Speed stirring 5min.
- Preparation method the most according to claim 2, it is characterised in that: the condition of described curing molding is room temperature, 20Mpa 20～80min are solidified under pressure.
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| CN106183218B (en) * | 2016-01-30 | 2017-11-21 | 南京理工大学 | A kind of negative pressure wheel cover room warming plate of good heat-insulation effect |
| CN106186814A (en) * | 2016-07-07 | 2016-12-07 | 苏州蓝邦智能系统集成有限公司 | Novel combination construction material |
| CN106630749A (en) * | 2016-12-08 | 2017-05-10 | 广西北海浩邦新能源科技有限公司 | Environment-friendly thermal insulation material and preparation method thereof |
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| CN1053647C (en) * | 1996-06-11 | 2000-06-21 | 阜新市房产建筑构件厂 | Coal gangue concrete products and preparing method thereof |
| CN101439952B (en) * | 2008-12-22 | 2011-08-10 | 朝阳华龙科建股份有限公司 | Coal gangue concrete and preparation thereof |
| CN102285772A (en) * | 2011-04-27 | 2011-12-21 | 梁林华 | Coal-gangue processing method, coal-gangue foamed concrete and laneway backfilling method |
| CN102432266A (en) * | 2011-09-01 | 2012-05-02 | 山发寿 | Manufacture method and application of baking-free coal gangue concrete |
| KR101366003B1 (en) * | 2013-04-26 | 2014-02-25 | 한일에코산업 주식회사 | Method for producing concrete block using non-cement binder |
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