CN110317011A - A kind of high intensity, porous brick and preparation method thereof - Google Patents
A kind of high intensity, porous brick and preparation method thereof Download PDFInfo
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- CN110317011A CN110317011A CN201810277921.0A CN201810277921A CN110317011A CN 110317011 A CN110317011 A CN 110317011A CN 201810277921 A CN201810277921 A CN 201810277921A CN 110317011 A CN110317011 A CN 110317011A
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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
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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
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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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2092—Resistance against biological degradation
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of high intensity, porous brick and preparation method thereof, the high intensity, porous brick includes the raw material of following parts by weight: fine aggregate 10-30 parts of self-control, 20-40 parts of rubble, 5-15 parts of flyash, 20-25 parts of cement, 10-14 parts of haydite, 6-8 parts of calcium carbonate, 3-6 parts of metallic fiber, 1-2 parts of aluminium oxide, 1.5-2 parts of expanded and vitrified small ball, 5-7 parts of montmorillonite and 0.3-0.5 parts of foaming agent.High intensity, porous brick of the present invention realizes the recycling of building waste using building waste as raw material, and porous brick has excellent compression strength, frost resistance.
Description
Technical field
The present invention relates to the field of building materials, and in particular, to a kind of high intensity, porous brick and preparation method thereof.
Background technique
No-firing brick or it is non-burning brick be a kind of novel wall material that raw material is manufactured without high-temperature calcination, there is intensity
It is high, durability is good, dimensional standard, the feature that shape is complete and color is uniform, and the appearance with primitive simplicity and nature, be to replace clay
The extremely promising renewal product of brick is the environmental protection building material that country advocates energetically.
Concrete perforated brick is added water and stirred, forms and is conserved with sand, Shi Dengjing and is manufactured using cement as cementing material
A kind of concrete product with multiple rows of aperture；Be after commonly with another wall after lightweight small size hollow concrete blocks
Material new varieties.Concrete perforated brick is low with production energy consumption, section soil benefit is useless, easy for construction and body is light, intensity is high, heat insulation effect
Good, durable, the features such as contraction distortion is small, appearance is regular is a kind of ideal material for substituting sintered clay brick.Concrete perforated brick
The characteristics of having both clay brick and small concrete block, resemblance belong to sintered perforated brick, and material is similar with small concrete block, meet brick
Body construction habit, every physics, mechanics and masonry performance can have the condition of sintered clay brick.Its use scope, design side
Method, construction and acceptance of work etc. can refer to existing masonry standard, can directly substitute sintered clay brick and hold for all kinds of load-bearing, heat preservation
In the different construction wall structures such as weight and frame filling, there is extensive popularization and application foreground.Concrete perforated brick will be helpful to
The production and application for reducing and preventing sintered clay brick, for improve environment, protection land resource and promote materials for wall innovation and
Building energy conservation, and " prohibit real " work carry out in a deep going way there are highly important social and economic implications.
With the development of urban construction, building castoff is increasing, these building wastes are largely using the side of landfill
Formula processing, so that taking up a large area for landfill building waste, seriously pollutes environment.And the aggregate of building waste preparation is utilized to produce
High intensity, porous brick can not only solve the problems, such as the puzzlement of urban building waste；It can also accomplish resource circulation utilization, protect environment.
With good social benefit, moreover it is possible to generate good economic benefit.
Currently, although there is the porous brick that many is prepared by trade waste, poor performance, intensity on the market
It can further strengthen.Therefore, how building waste is rationally used to no-firing brick production preparation field, performance is prepared in production
Excellent brick has long-range meaning, is waste material utilization and non-sintered brickmaking urgent problem to be solved.
Summary of the invention
In order to overcome drawbacks described above, the present invention provides a kind of high intensity, porous bricks, are prepared using building waste production
High intensity, porous brick, have excellent frost resistance and compression strength.
Another object of the present invention is to provide the preparation methods of the high intensity, porous brick.
To achieve the goals above, its technical solution is as follows:
A kind of high intensity, porous brick, the raw material including following weight: self-control fine aggregate 10-30 parts, 20-40 parts of rubble,
It is 5-15 parts of flyash, 20-25 parts of cement, 10-14 parts of haydite, 6-8 parts of calcium carbonate, 3-6 parts of metallic fiber, 1-2 parts of aluminium oxide, swollen
Swollen glass bead 1.5-2 parts, 5-7 parts of montmorillonite and 0.3-0.5 parts of foaming agent；
Wherein, the preparation method of the self-control fine aggregate includes the following:
(1) above-mentioned building waste: being crushed by destruction step with crusher, obtains 35mm broken building waste below；
(2) recycle screening step: broken building waste is sent through feeding device to second level screening plant, after level-one is sieved, 15-
The building waste of 20mm or less partial size enter the second level screening, remaining building waste by second conveyer send back to crusher into
It goes further to be crushed or send to pulverizer and be crushed；After the screening of the second level, the fine aggregate less than 5mm enters fine aggregate collection
Slot, other mixing aggregates enter mixing aggregate collecting tank, and send to pulverizer and continue to be crushed, and the mixing aggregate after being crushed is through the
Two transmission devices are sent to drum screen processing, obtain the fine aggregate less than 5mm so on circulate.
High intensity, porous brick provided by the invention mainly uses building waste for fine aggregate, and rubble is coarse aggregate, and cement is made
For cementitious material, building waste is made full use of, is turned waste into wealth, some auxiliary elements are also added, improves the performance of porous brick, including
Flyash, haydite, calcium carbonate, metallic fiber, aluminium oxide, expansionization glass microballoon, montmorillonite and foaming agent.Flyash is coal stove
And the ash content collected in flue gas, silica can not only be provided, moreover it is possible to aluminium oxide be provided, aggregate is had concurrently and generate cementitious material
Double action can enhance the physical strength of porous brick；Haydite density is low, cylindrical compress strength is high, porosity is high, frost resistance is good, anti-
Alkali is excellent, considerably increases the physical property of porous brick；Calcium carbonate, metallic fiber, aluminum oxide can increase
The physical strength of concrete perforated brick；Expanded and vitrified small ball forms certain granule strength, physicochemical property ten due to surface vitreous
Divide and stablize, ageing-resistant weatherability is strong, has excellent Jue Re ﹑ Fang Huo ﹑ sound absorption qualities, serves as light filling aggregate and Jue Re ﹑ is anti-
Huo ﹑ Xi Yin ﹑ thermal insulation material improves raw material and easy mobility and from anti-intensity, reduces material shrinking percentage, improve the synthesis of porous brick
Performance；And montmorillonite has very strong absorption property and good dispersibility as a kind of common additive, can improve anti-impact
Hit and stability, therefore the addition of montmorillonite and foaming agent, it is ensured that the quality of product, further enhance the intensity of porous brick with
And stability during the preparation process；Have intensity high with porous brick made of these raw materials and stronger high temperature resistant and antifreeze
Ability.
Preferably, the circulation screening step specifically: broken building waste is sent through feeding device to favouring bottom surface
The drum screen of setting carries out second level screening, and the drum screen includes affixed below end cap and end cap for first order screening
It is described for the roller of second level screening, the shell that is arranged on the outside of roller and driving device for driving drum screen to rotate
End cap is formed in middle part to the globoidal structure of roller direction indent and by the lattice-shaped sieve that grid side length is 15-20mm；It is described
Roller is formed by the lattice-shaped sieve coiling that grid side length is 3-5mm, and the bottom of roller is the lattice-shaped of grid side length 5-30mm
Sieve, the bottom part down of roller are equipped with mixing aggregate collecting tank, and the outer casing bottom is equipped with fine aggregate collecting tank；Through end cap first
The building waste of 15-20mm or less partial size enters roller progress second level screening after grade screening, and remaining building waste is by first
Transmission device sends crusher back to and be further crushed or send to pulverizer being crushed；The building waste sieved into the second level
It is further sieved, fine aggregate of the partial size sifted out from the side of roller less than 5mm enters fine aggregate collecting tank, from cylinder bottom
The mixing aggregate sifted out enters mixing aggregate collecting tank, and send to pulverizer and continues to be crushed, and the mixing aggregate after being crushed is through the
Two transmission devices are sent to drum screen processing, obtain fine aggregate so on circulate.
Preferably, it is described self-control fine aggregate preparation method further include pre-treatment step: building waste is first rejected reinforcing bar,
Timber and iron tramp, and by construction waste crushing to 200-300mm.
Preferably, the preparation method of the self-control fine aggregate further includes dust removal step: being crushed and is following using dust-extraction unit
Ring grizzly carries out spray for dust suppression in the process step by step, and the dust-extraction unit includes the fugitive dust point in crusher, drum screen and pulverizer
The fugitive dust cover being nearby arranged is provided with spraying device on the fugitive dust cover, for spraying water mist with dedusting.
Preferably, the partial size of the fine aggregate is 1-2mm, and the partial size of rubble is 2-5mm, and the partial size of flyash is 1-2mm.
Preferably, the metallic fiber is steel fibre, length 1-3mm, 0 .5-1mm of path length.
In order to further enhance the performance of product, the raw material further includes fungicide and antifreezing agent, the fungicide weight
It part is 1-2 parts, preferably sulphur powder, lime sulfur, copper sulphate, mercuric chloride, lime Bordeaux mixture, Kocide SD, cuprous oxide
One or two or more kinds of mixtures.The parts by weight of antifreezing agent are 1-2 parts, and preferably antifreezing agent is sodium nitrite, calcium chloride, Asia
The mixtures of the one or two or more kinds of calcium nitrate, urea, ethylene glycol.
To achieve the goals above, the preparation method provided by the invention for preparing above-mentioned porous brick, includes the following steps:
(1) after weighing various raw materials by weight, the raw material is put into high-speed mixer and is stirred, while being slowly added water,
20-30min is stirred, uniform mixture is obtained；
(2) mixture addition water is subjected to ripening, digestion time 3-6d 25-45 DEG C of Aging Temperature, will be described old
The mixture for changing processing carries out shelving processing, enclosing material time 3-5h；
(3) by extrusion forming in the shelving treated mixture is placed in vibration-extrusion molding, porous brick adobe is made；
(4) the porous brick adobe is transferred to interior to conserve, the time of indoor maintenance is 22-30h；
(5) the porous brick adobe by the indoor maintenance is conserved in the constant temperature and humidity that temperature is 20-25 DEG C and humidity is 90-95 parts
Indoor maintenance 6-8d, obtains porous brick.
Preparation method provided by the invention, ageing and shelving processing have successively been carried out to raw material, and ripening makes raw material
Grain is discongested, and moisture homogenizes, and penetrates into the moisture of particle surface inside particle, makes the raw material that dry and wet is uneven or stirring is insufficient
It is consistent to reach uniform moisture and interpenetrating, improves raw material physical property, improves raw material plasticity, is convenient for extrusion molding；Its
Another effect is raw material storage, prevents weather reason from leading to insufficient raw material, brings economic loss.And shelving processing make raw material into
One step is uniformly mixed.In order to ensure the molding of porous brick, constant temperature and humidity maintenance is carried out, and its temperature of strict control and wet
Degree.
High intensity, porous brick of the invention and preparation method thereof, generation have the beneficial effect that:
(1) using building waste as fine aggregate, resource circulation utilization protects environment；And the method for building waste preparing fine aggregate
It is easy to operate, it is easy to implement.
(2) haydite, calcium carbonate, metallic fiber, aluminum oxide increase the heat-insulated heat-resisting ability of concrete perforated brick；
Haydite density is low, cylindrical compress strength is high, porosity is high, frost resistance is good, alkali resistant aggregate reaction is excellent, considerably increases concrete
The physical property of porous brick；Metallic fiber, aluminum oxide can increase the physical strength of concrete perforated brick；
(3) addition of fungicide can be effectively prevented bacteria breed on concrete perforated brick, guarantee the quality of concrete perforated brick；
Antifreezing agent can effectively improve the antifreeze ability of concrete perforated brick；The addition of other auxiliary agents can greatly increase concrete perforated brick
Performance and preparation process in stability；
(4) addition of expanded and vitrified small ball improves raw material and easy mobility and from anti-intensity, reduces material shrinking percentage, improves porous
The comprehensive performance of brick；The addition of montmorillonite and foaming agent, it is ensured that the quality of product further enhances the compression strength of porous brick
And stability during the preparation process.
(5) ageing and shelving processing have successively been carried out in preparation method provided by the invention to raw material, has kept raw material mixing equal
Even, extrusion forming is convenient in plasticity enhancing.Constant temperature and humidity maintenance has finally been carried out, the molding of porous brick is facilitated.
Detailed description of the invention
Fig. 1 is the preparation technology flow chart of fine aggregate of the invention；
Fig. 2 is the structural schematic diagram of rotary screen used in the present invention；
Fig. 3 is the perspective view of rotary screen used in the present invention.
Wherein appended drawing reference are as follows: end cap 10；Roller 20；Shell 30；Girdle ring plate 21.
Specific embodiment
The present invention is described in further detail below in conjunction with specific embodiment.
Self-control fine aggregate described in following embodiment is prepared as follows to obtain:
(1) building waste: first being rejected reinforcing bar, timber and iron tramp by pre-treatment step, and by construction waste crushing to 200-
300mm；
(2) above-mentioned building waste: being crushed by destruction step with crusher, obtains 35mm broken building waste below；
(3) recycle screening step: broken building waste send to the drum screen for favouring bottom surface setting through feeding device and carries out two
Grade screening, the drum screen include sieving for the end cap (10) of first order screening, with affixed below end cap for the second level
Roller (20), the shell (30) that is arranged on the outside of roller and the driving device for driving drum screen to rotate, the end cap
(10) it is formed in middle part to the globoidal structure of roller (20) direction indent and by the lattice-shaped sieve that grid side length is 15-20mm；
The roller (20) is formed by the lattice-shaped sieve coiling that grid side length is 3-5mm, and the bottom of roller (20) is grid side length 5-
The lattice-shaped sieve of 30mm, the bottom part down of roller (20) are equipped with mixing aggregate collecting tank, and shell (30) bottom is equipped with thin
Aggregate collecting tank；The building waste of 15-20mm or less partial size enters roller (20) and carries out the after the screening of end cap (10) first order
Second level screening, remaining building waste send crusher back to by second conveyer and be further crushed or send to pulverizer carrying out
It crushes；The building waste sieved into the second level is further sieved, and the partial size sifted out from the side of roller (20) is less than 5mm's
Fine aggregate enters fine aggregate collecting tank, and the mixing aggregate sifted out from cylinder bottom enters mixing aggregate collecting tank, and send to crushing
Machine continues to be crushed, and the mixing aggregate after being crushed is sent through second conveyer to drum screen processing, obtains so on circulate thin
Aggregate.
(4) dust removal step: carrying out spray for dust suppression during broken and circulation screening step using dust-extraction unit, described to remove
Dirt device includes the fugitive dust cover being arranged near the fugitive dust point of crusher, drum screen and pulverizer, is provided on the fugitive dust cover
Spraying device, for spraying water mist with dedusting.
Embodiment 1
A kind of high intensity, porous brick of the present embodiment, the raw material including following parts by weight:
Make 20 parts of fine aggregate, 25 parts of rubble, 10 parts of flyash, 20 parts of cement, 10 parts of haydite, 6 parts of calcium carbonate, metallic fiber 4 by oneself
The sterilization that 0.3 part of part, 1 part of aluminium oxide, 1.5 parts of expanded and vitrified small ball, 5 parts of montmorillonite and foaming agent and parts by weight are 1 part
Agent, the antifreezing agent that parts by weight are 1 part.Fungicide is sulphur powder, lime sulfur, copper sulphate, mercuric chloride, lime Bordeaux mixture, hydrogen-oxygen
Change the mixture of copper and cuprous oxide；Antifreezing agent is the mixture of sodium nitrite, calcium chloride, calcium nitrite, urea and ethylene glycol.
Specifically, the partial size of fine aggregate is 2mm, and the partial size of rubble is 5mm, and the partial size of flyash is 2mm；Metallic fiber is
Steel fibre, length 1mm, a length of 0.5mm of diameter.
The preparation method of above-mentioned high intensity, porous brick provided in this embodiment, comprising the following steps:
(1) various raw materials are weighed by the parts by weight, the raw material is put into high-speed mixer and is stirred, is slowly added simultaneously
Water stirs 20min, obtains uniform mixture；
(2) by the mixture addition water carry out ripening, digestion time 3d, 30 DEG C of Aging Temperature, at above-mentioned ageing
The mixture of reason carries out shelving processing, enclosing material time 3h；
(3) by extrusion forming in the shelving treated mixture is placed in vibration-extrusion molding, porous brick adobe is made；
(4) the porous brick adobe is transferred to interior to conserve, the time of indoor maintenance is 22h；
(5) the porous brick adobe by the indoor maintenance is supported in the constant temperature and humidity fog room that temperature is 20 DEG C and humidity is 90%
6d is protected, porous brick is obtained.
Embodiment 2
A kind of high intensity, porous brick of the present embodiment, the raw material including following parts by weight:
Make 10 parts of fine aggregate, 40 parts of rubble, 9 parts of flyash, 20 parts of cement, 12 parts of haydite, 7 parts of calcium carbonate, metallic fiber 4 by oneself
0.4 part of part, 1.5 parts of aluminium oxide, 2 parts of expanded and vitrified small ball, 6.5 parts of montmorillonite and foaming agent and parts by weight are 1.5 parts and kill
Microbial inoculum, the antifreezing agent that parts by weight are 1.5 parts.Fungicide be sulphur powder, lime sulfur, copper sulphate, mercuric chloride, lime Bordeaux mixture,
The mixture of Kocide SD and cuprous oxide；Antifreezing agent is the mixed of sodium nitrite, calcium chloride, calcium nitrite, urea and ethylene glycol
Close object.
Specifically, the partial size of fine aggregate is 1mm, and the partial size of rubble is 2mm, and the partial size of flyash is 1mm；Metallic fiber is
Steel fibre, length 2mm, a length of 0.8mm of diameter.
The preparation method of above-mentioned high intensity, porous brick provided in this embodiment, comprising the following steps:
(1) various raw materials are weighed by the parts by weight, raw material is put into high-speed mixer and is stirred, while being slowly added water, stirred
20min is mixed, uniform mixture is obtained.
(2) mixture addition water is subjected to ripening, digestion time 4d 40 DEG C of Aging Temperature, will be above-mentioned old
The mixture for changing processing carries out shelving processing, enclosing material time 3h.
(3) shelving is stated treated that mixture is placed in extrusion forming in vibration-extrusion molding for described, porous brick brick is made
Base.
(4) the porous brick adobe is transferred to interior to conserve, the time of indoor maintenance is for 24 hours.
(5) by the porous brick adobe of the indoor maintenance in the constant temperature and humidity fog room that temperature is 20 DEG C and humidity is 93%
Interior maintenance 7d, obtains porous brick.
Embodiment 3
A kind of high intensity, porous brick of the present embodiment, the raw material including following parts by weight:
Make 30 parts of fine aggregate, 20 parts of rubble, 6 parts of flyash, 24 parts of cement, 13 parts of haydite, 7.5 parts of calcium carbonate, metallic fiber 3 by oneself
The sterilization that 0.4 part of part, 1 part of aluminium oxide, 1.65 parts of expanded and vitrified small ball, 6 parts of montmorillonite and foaming agent and parts by weight are 2 parts
Agent, the antifreezing agent that parts by weight are 2 parts.Fungicide is sulphur powder, lime sulfur, copper sulphate, mercuric chloride, lime Bordeaux mixture, hydrogen-oxygen
Change the mixture of copper and cuprous oxide；Antifreezing agent is the mixture of sodium nitrite, calcium chloride, calcium nitrite, urea and ethylene glycol.
Specifically, the partial size of fine aggregate is 1mm, and the partial size of rubble is 4mm, and the partial size of flyash is 1mm；Metallic fiber is
Steel fibre, length 3mm, a length of 0.9mm of diameter.
The preparation method of above-mentioned high intensity, porous brick provided in this embodiment, comprising the following steps:
(1) various raw materials are weighed by the parts by weight；The raw material is put into high-speed mixer and is stirred, is slowly added simultaneously
Water stirs 25min, obtains uniform mixture.
(2) said mixture addition water is subjected to ripening, digestion time 5d 30 DEG C of Aging Temperature, will be described old
The mixture for changing processing carries out shelving processing, enclosing material time 4h.
(3) by extrusion forming in the shelving treated mixture is placed in vibration-extrusion molding, porous brick adobe is made,
(4) the porous brick adobe is transferred to interior to conserve, the time of indoor maintenance is 22h.
(5) by the porous brick adobe of the indoor maintenance in the constant temperature and humidity fog room that temperature is 23 DEG C and humidity is 95%
Interior maintenance 8d, obtains porous brick.
Embodiment 4
A kind of high intensity, porous brick of the present embodiment, the raw material including following parts by weight:
Make 12 parts of fine aggregate, 20 parts of rubble, 7 parts of flyash, 23 parts of cement, 14 parts of haydite, 7 parts of calcium carbonate, metallic fiber 5.5 by oneself
The sterilization that 0.5 part of part, 1.8 parts of aluminium oxide, 1.8 parts of expanded and vitrified small ball, 7 parts of montmorillonite and foaming agent and parts by weight are 1 part
Agent, the antifreezing agent that parts by weight are 1 part.Fungicide is sulphur powder, lime sulfur, copper sulphate, mercuric chloride, lime Bordeaux mixture, hydrogen-oxygen
Change the mixture of copper and cuprous oxide；Antifreezing agent is the mixture of sodium nitrite, calcium chloride, calcium nitrite, urea and ethylene glycol.
Specifically, the partial size of fine aggregate is 1mm, and the partial size of rubble is 3mm, and the partial size of flyash is 1mm；
Metallic fiber is steel fibre, length 3mm, a length of 0.9mm of diameter.
The preparation method of above-mentioned high intensity, porous brick provided in this embodiment, comprising the following steps:
(1) various raw materials are weighed by the parts by weight；The raw material is put into high-speed mixer and is stirred, is slowly added simultaneously
Water stirs 30min, obtains uniform mixture.
(2) said mixture addition water is subjected to ripening, digestion time 3d 45 DEG C of Aging Temperature, will be above-mentioned old
The mixture for changing processing carries out shelving processing, enclosing material time 5h.
(3) by extrusion forming in treated mixture the is placed in vibration-extrusion molding of above-mentioned shelving, porous brick adobe is made.
(4) above-mentioned porous brick adobe is transferred to interior to conserve, the time of indoor maintenance is 25h.
(5) by the porous brick adobe of above-mentioned indoor maintenance in the constant temperature and humidity fog room that temperature is 20 DEG C and humidity is 90%
Interior maintenance 6d, obtains porous brick.
Embodiment 5
A kind of high intensity, porous brick of the present embodiment, the raw material including following parts by weight:
Make 12 parts of fine aggregate, 20 parts of rubble, 7 parts of flyash, 23 parts of cement, 14 parts of haydite, 7 parts of calcium carbonate, metallic fiber 5.5 by oneself
0.4 part of part, 1.8 parts of aluminium oxide, 1.8 parts of expanded and vitrified small ball, 5.5 parts of montmorillonite and foaming agent and parts by weight are 1.2 parts
Fungicide, the antifreezing agent that parts by weight are 1.2 parts.Fungicide is sulphur powder, lime sulfur, copper sulphate, mercuric chloride, lime Bordeaux
The mixture of liquid, Kocide SD and cuprous oxide；Antifreezing agent is sodium nitrite, calcium chloride, calcium nitrite, urea and ethylene glycol
Mixture.
Specifically, the partial size of fine aggregate is 1mm, and the partial size of rubble is 2mm, and the partial size of flyash is 1mm；Metallic fiber is
Steel fibre, length 3mm, a length of 0.9mm of diameter.
The preparation method of above-mentioned high intensity, porous brick provided in this embodiment, comprising the following steps:
(1) various raw materials are weighed by the parts by weight；The raw material is put into high-speed mixer and is stirred, is slowly added simultaneously
Water stirs 22min, obtains uniform mixture.
(2) said mixture addition water is subjected to ripening, digestion time 6d 25 DEG C of Aging Temperature, will be above-mentioned old
The mixture for changing processing carries out shelving processing, enclosing material time 4h.
(3) by extrusion forming in treated mixture the is placed in vibration-extrusion molding of above-mentioned shelving, porous brick adobe is made.
(4) above-mentioned porous brick adobe is transferred to interior to conserve, the time of indoor maintenance is 30h.
(5) by the porous brick adobe of above-mentioned indoor maintenance in the constant temperature and humidity fog room that temperature is 25 DEG C and humidity is 95%
Interior maintenance 8d, obtains porous brick.
According to the examination criteria of GB/T 25779-2010, the product of above embodiments is detected, obtained detection knot
Fruit is as shown in table 1:
Table 1
As known from Table 1, each embodiment has preferable physical property, especially has excellent compression strength.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate this patent example, and is not pair
The restriction of the embodiment of this patent.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in patent claims within the spirit and principle of patent
Protection scope within.
Claims (10)
1. a kind of high intensity, porous brick, which is characterized in that the raw material including following weight: fine aggregate 10-30 parts of self-control,
20-40 parts of rubble, 5-15 parts of flyash, 20-25 parts of cement, 10-14 parts of haydite, 6-8 parts of calcium carbonate, 3-6 parts of metallic fiber, oxygen
Aluminium 1-2 parts of change, 1.5-2 parts of expanded and vitrified small ball, 5-7 parts of montmorillonite and 0.3-0.5 parts of foaming agent；
Wherein, the preparation method of the self-control fine aggregate includes the following:
Building waste: first being rejected reinforcing bar, timber and iron tramp by pre-treatment step, and by building waste
It is crushed to 20 destruction steps: being crushed above-mentioned building waste with crusher, obtain 35mm broken building below
Rubbish；
Recycle screening step: broken building waste is sent through feeding device to second level screening plant, through one
After grade screening, the building waste of 15-20mm or less partial size enters second level screening, and remaining building waste is by the first transmission
Device sends crusher back to and be further crushed or send to pulverizer being crushed；After the screening of the second level, the fine aggregate less than 5mm
Into fine aggregate collecting tank, other mixing aggregates enter mixing aggregate collecting tank, and send to pulverizer and continue to be crushed, after being crushed
Mixing aggregate send through second conveyer to drum screen processing, obtain the fine aggregate less than 5mm so on circulate.
2. high intensity, porous brick according to claim 1, which is characterized in that the circulation screening step are as follows: broken builds
Building refuse send to the drum screen for favouring bottom surface setting through feeding device and carries out second level screening, and the drum screen includes being used for first
The end cap (10) of grade screening, with the roller (20) for second level screening affixed below end cap, be arranged in it is outer on the outside of roller
Shell (30) and for drive drum screen rotate driving device, the end cap (10) be in arc of the middle part to roller (20) direction indent
Face structure and by grid side length be 15-20mm lattice-shaped sieve form；The grid that the roller (20) is 3-5mm by grid side length
Trellis sieve coiling forms, and the bottom of roller (20) is the lattice-shaped sieve of grid side length 5-30mm, under the bottom of roller (20)
Side is equipped with mixing aggregate collecting tank, and shell (30) bottom is equipped with fine aggregate collecting tank；After the screening of end cap (10) first order
The building waste of 15-20mm or less partial size enters roller (20) and carries out second level screening, and remaining building waste is by the first transmission
Device sends crusher back to and be further crushed or send to pulverizer being crushed；Into the second level sieve building waste by into
The screening of one step, fine aggregate of the partial size sifted out from the side of roller (20) less than 5mm enters fine aggregate collecting tank, from cylinder bottom
The mixing aggregate sifted out enters mixing aggregate collecting tank, and send to pulverizer and continues to be crushed, and the mixing aggregate after being crushed is through the
Two transmission devices are sent to drum screen processing, obtain fine aggregate so on circulate.
3. high intensity, porous brick according to claim 1, which is characterized in that the preparation method of the self-control fine aggregate is also wrapped
It includes pre-treatment step: building waste is first rejected to reinforcing bar, timber and iron tramp, and by construction waste crushing to 200-300mm.
4. high intensity, porous brick according to claim 1, which is characterized in that the preparation method of the self-control fine aggregate is also wrapped
It includes dust removal step: carrying out spray for dust suppression, the dust-extraction unit packet during broken and circulation screening step using dust-extraction unit
The fugitive dust cover being arranged near the fugitive dust point of crusher, drum screen and pulverizer is included, is provided with spraying device on the fugitive dust cover,
For spraying water mist with dedusting.
5. high intensity, porous brick according to claim 1, which is characterized in that the partial size of the fine aggregate is 2-4mm, described
The partial size of rubble is 2-5mm, and the partial size of the flyash is 1-2mm.
6. high intensity, porous brick according to claim 1, which is characterized in that the metallic fiber is steel fibre, length 1-
3mm, 0 .5-1mm of path length.
7. high intensity, porous brick according to claim 1, which is characterized in that further include the fungicide that parts by weight are 1-2 parts
With 2 parts of antifreezing agent of 1-.
8. high intensity, porous brick according to claim 7, which is characterized in that the fungicide be sulphur powder, lime sulfur,
The mixtures of the one or two or more kinds of copper sulphate, mercuric chloride, lime Bordeaux mixture, Kocide SD, cuprous oxide.
9. high intensity, porous brick according to claim 7, which is characterized in that the antifreezing agent be sodium nitrite, calcium chloride,
The mixtures of the one or two or more kinds of calcium nitrite, urea, ethylene glycol.
10. the preparation method of the described in any item high intensity, porous bricks of claim 1-9, which comprises the steps of:
After weighing various raw materials by weight, the raw material is put into high-speed mixer and is stirred, while being slowly added water, stirred
20-30min obtains uniform mixture；
By the mixture addition water carry out ripening, digestion time 3-6d, 25-45 DEG C of Aging Temperature, by the ageing
The mixture of processing carries out shelving processing, enclosing material time 3-5h；
By extrusion forming in the shelving treated mixture is placed in vibration-extrusion molding, porous brick adobe is made；
The porous brick adobe is transferred to interior to conserve, the time of indoor maintenance is 22-30h；
By the porous brick adobe of the indoor maintenance in the constant temperature and humidity fog room that temperature is 20-25 DEG C and humidity is 90-95%
6-8d is conserved, porous brick is obtained.
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Cited By (1)
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| CN111302713A (en) * | 2020-03-16 | 2020-06-19 | 吴银鑫 | Durable environment-friendly building block brick and preparation method thereof |
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