CN107344862A - A kind of environmental friendly regenerated aggregate aerated bricks and preparation method thereof - Google Patents
A kind of environmental friendly regenerated aggregate aerated bricks and preparation method thereof Download PDFInfo
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- CN107344862A CN107344862A CN201710615388.XA CN201710615388A CN107344862A CN 107344862 A CN107344862 A CN 107344862A CN 201710615388 A CN201710615388 A CN 201710615388A CN 107344862 A CN107344862 A CN 107344862A
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- Prior art keywords
- powder
- aggregate
- aerated bricks
- recycled concrete
- sericite
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- 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
- C04B2111/29—Frost-thaw resistance
-
- 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
- C04B2111/52—Sound-insulating materials
-
- 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
-
- 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
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of environmental friendly regenerated aggregate aerated bricks, it is made from the following raw materials in parts by weight：Cement 8 10, lime 18 20, Aggregate of recycled concrete 70 75, gypsum 1 1.5, aluminium powder 0.7 0.8, butyl titanate 78, ethanol 80 85, ammoniacal liquor 35 37, rubber powder of waste tire 67,0.2 0.3% sodium hydroxide solution are appropriate, acrylic emulsion 1 1.5, sericite in powder 56, bismuth ferrate nano particle 1 1.5.The present invention is modified using butyl titanate to Aggregate of recycled concrete, slow down the carbonization of water and carbon dioxide to Aggregate of recycled concrete, and improves the anti-freezing property of aerated bricks, extends the service life of aerated bricks.By using acrylic emulsion, sericite in powder, bismuth ferrate nano particle, pernicious gas that can be in catalysis oxidation air, the environmental-protecting performances of aerated bricks is improved.
Description
Technical field
The present invention relates to aerated bricks technical field, more particularly to a kind of environmental friendly regenerated aggregate aerated bricks and its preparation
Method.
Background technology
Caused a large amount of solid waste in house breaking or new construction construction, wherein more than 90% is grey, broken to land
Brick, waste concrete block.At present, major part building solid castoff in China's is used at air storage or land-fill method
Reason, causes certain environmental pressure.
By building solid castoff by broken, cleaning, classification, and grading mixing by a certain percentage can obtain Regenerated Bone
Material, this regeneration aggregate have the features such as low intensity, water absorption rate are big, material property variation is big compared with natural sand stone aggregate.Mesh
Before, it is widely studied and applied regeneration concrete coarse-fine aggregate and makes recycled concrete, often only make use of discarded coagulation
Soil；And because 0 ~ 5mm of particle diameter recycled fine aggregate water absorption rate is much larger than coarse aggregate, it can reduce concrete strength, dry
Increase is shunk, therefore during regeneration, often remove below 5mm particles.Therefore occur substantial amounts of landing ash, brickbat head and
The building solid castoffs such as fine particle, still cannot effectively it utilize.
Concrete perforated brick typically uses grain composition, and for 0 ~ 10mm aggregates, mixing is into dry concrete, using machinery
Vibrating compacting technique, is formed through nature or steam curing, and its requirement to aggregate is lower than regeneration concrete.Therefore, using building
Discarded object production concrete brick is built, can not only greatly improve the utilization rate of building solid castoff, and become current China
A kind of standard configuration of building solid castoff regeneration enterprise.
《The experimental study that grading of aggregates influences on multi-pore brick with recycled concrete frost resistance》One text is produced using regeneration aggregate
Multi-pore brick with recycled concrete, and to Performances of Recycled Aggregate of Existing, the compression strength of brick, frost resistance, water resistance, carbonization stability and drying
Shrink etc., do comprehensive research.Summarize herein in experimental study content, regeneration aggregate level pairing multi-pore brick with recycled concrete is freeze proof
The influence of property.
It is feasible using Aggregate of recycled concrete production aerated bricks, but Aggregate of recycled concrete still has water absorption rate
Larger, carbonization speed is fast, it is necessary to improve the shortcomings that easy efflorescence, it is also necessary to improves the water resistance of aerated bricks, wearability, anti-quiet
Electrically, the performance such as anti-corrosive properties, freeze-proof, crack resistence, antidetonation, sound absorption qualities, dimensional stability, anti-flammability, high temperature resistant.
The content of the invention
A kind of the defects of the object of the invention is exactly to make up prior art, there is provided environmental friendly regenerated aggregate aerated bricks
And preparation method thereof.
The present invention is achieved by the following technical solutions：
A kind of environmental friendly regenerated aggregate aerated bricks, are made from the following raw materials in parts by weight：Cement 8-10, lime 18-20, again
It is growing concrete aggregate 70-75, gypsum 1-1.5, aluminium powder 0.7-0.8, butyl titanate 7-8, ethanol 80-85, ammoniacal liquor 35-37, useless
Old tire rubber powder 6-7,0.2-0.3% sodium hydroxide solution are appropriate, acrylic emulsion 1-1.5, sericite in powder 5-6, bismuth ferrite are received
Rice grain 1-1.5.
The preparation method of described environmental friendly regenerated aggregate aerated bricks, comprises the following steps：
（1）Butyl titanate, ethanol are mixed, stirring obtains solution, and then ammoniacal liquor is slowly added dropwise in the above-mentioned solution of people,
Emulsion is obtained after stirring reaction 3-3.5h at 30-35 DEG C, Aggregate of recycled concrete is sprayed into emulsion when quickly stirring, dry
To powder；
（2）Rubber powder of waste tire is crossed into 200 mesh sieves, mixed with the 0.2-0.3% sodium hydroxide solutions of 3-4 times of parts by weight,
15-20min is stirred at 50-52 DEG C, is then carried out under conditions of 50-52 DEG C, wavelength 340nm, irradiation intensity 0.77W/ ㎡ purple
Outside line aging 8-9h, then 3.5-4h is condensed at 38-40 DEG C, such circular treatment rubber powder one week, regulation pH value is neutrality, is obtained
To modified rubber, by（1）Walk obtained powder and add modified rubber while stirring, dry, obtain modification regeneration concrete bone
Material；
（3）Acrylic emulsion, sericite in powder, bismuth ferrate nano particle are well mixed, dry, pulverize, with modification regeneration coagulation
Native aggregate, cement, lime, gypsum mixing, are sent into ball milling in ball mill, then are mixed with composition in addition to aluminum, by ratio of water to material
Water is added for 0.57-0.58, stirs, adds aluminium powder, be uniformly mixing to obtain slurry；
（4）Slurry is poured into mould, obtains adobe body, the progress of adobe body is steam-cured, produced after placement.
It is an advantage of the invention that：The present invention is modified using butyl titanate to Aggregate of recycled concrete, mixed in regeneration
Coagulate the hole of native aggregate and surface forms titanium dioxide granule, prevent carbonization of the carbon dioxide to Aggregate of recycled concrete from invading
Erosion；Reuse after rubber powder of waste tire carries out aging and Aggregate of recycled concrete is modified, prevent titanium dioxide granule from taking off
Fall, reduce water imbibition, so as to slow down the carbonization of water and carbon dioxide to Aggregate of recycled concrete, and improve aerating
The anti-freezing property of brick, extend the service life of aerated bricks.By using acrylic emulsion, sericite in powder, bismuth ferrate nano
Grain, pernicious gas that can be in catalysis oxidation air, improve the environmental-protecting performances of aerated bricks.
Embodiment
A kind of environmental friendly regenerated aggregate aerated bricks, by following parts by weight（Kilogram）Raw material be made：Cement 8, lime
18th, Aggregate of recycled concrete 70, gypsum 1, aluminium powder 0.7, butyl titanate 7, ethanol 80, ammoniacal liquor 35, rubber powder of waste tire 6,
0.2% sodium hydroxide solution is appropriate, acrylic emulsion 1, sericite in powder 5, bismuth ferrate nano particle 1.
The preparation method of described environmental friendly regenerated aggregate aerated bricks, comprises the following steps：
（1）Butyl titanate, ethanol are mixed, stirring obtains solution, then ammoniacal liquor is slowly added dropwise in the above-mentioned solution of people, 30
Emulsion is obtained after stirring reaction 3h at DEG C, Aggregate of recycled concrete is sprayed into emulsion when quickly stirring, is dried to obtain powder；
（2）Rubber powder of waste tire is crossed into 200 mesh sieves, mixes with 0.2% sodium hydroxide solution of 3 times of parts by weight, is stirred at 50 DEG C
15min is mixed, ultraviolet ray ageing 8h is then carried out under conditions of 50 DEG C, wavelength 340nm, irradiation intensity 0.77W/ ㎡, then 38
Condense 3.5h at DEG C, such circular treatment rubber powder one week, regulation pH value is neutrality, obtains modified rubber, by the（1）Step obtains
Powder add modified rubber while stirring, dry, obtain modification regeneration aggregate；
（3）Acrylic emulsion, sericite in powder, bismuth ferrate nano particle are well mixed, dry, pulverize, with modification regeneration coagulation
Native aggregate, cement, lime, gypsum mixing, are sent into ball milling in ball mill, then are mixed with composition in addition to aluminum, by ratio of water to material
Water is added for 0.57, stirs, adds aluminium powder, be uniformly mixing to obtain slurry；
（4）Slurry is poured into mould, obtains adobe body, the progress of adobe body is steam-cured, produced after placement.
The density of the aerated bricks is 655kg/m3, modulus of elasticity 3702MPa, and thermal conductivity factor is 0.19W/(m DEG C）, adopt
Sprayed respectively to thick 240mm clay tile wall and aerating brick wall with shower nozzle, clay tile wall is all impregnated with after 12 hours, aerating
Infiltration depth is 40mm after brick wall sprays 72 hours, compression strength 8.7Mpa, 0.39,50 circulating freezing resistances of acoustic absorptivity it
Afterwards, outward appearance remains intact.
Claims (2)
1. a kind of environmental friendly regenerated aggregate aerated bricks, it is characterised in that be made from the following raw materials in parts by weight：Cement 8-10,
Lime 18-20, Aggregate of recycled concrete 70-75, gypsum 1-1.5, aluminium powder 0.7-0.8, butyl titanate 7-8, ethanol 80-85,
Ammoniacal liquor 35-37, rubber powder of waste tire 6-7,0.2-0.3% sodium hydroxide solution are appropriate, acrylic emulsion 1-1.5, sericite in powder
5-6, bismuth ferrate nano particle 1-1.5.
2. the preparation method of environmental friendly regenerated aggregate aerated bricks according to claim 1, it is characterised in that including with
Lower step：
（1）Butyl titanate, ethanol are mixed, stirring obtains solution, and then ammoniacal liquor is slowly added dropwise in the above-mentioned solution of people,
Emulsion is obtained after stirring reaction 3-3.5h at 30-35 DEG C, Aggregate of recycled concrete is sprayed into emulsion when quickly stirring, dry
To powder；
（2）Rubber powder of waste tire is crossed into 200 mesh sieves, mixed with the 0.2-0.3% sodium hydroxide solutions of 3-4 times of parts by weight,
15-20min is stirred at 50-52 DEG C, is then carried out under conditions of 50-52 DEG C, wavelength 340nm, irradiation intensity 0.77W/ ㎡ purple
Outside line aging 8-9h, then 3.5-4h is condensed at 38-40 DEG C, such circular treatment rubber powder one week, regulation pH value is neutrality, is obtained
To modified rubber, by（1）Walk obtained powder and add modified rubber while stirring, dry, obtain modification regeneration concrete bone
Material；
（3）Acrylic emulsion, sericite in powder, bismuth ferrate nano particle are well mixed, dry, pulverize, with modification regeneration coagulation
Native aggregate, cement, lime, gypsum mixing, are sent into ball milling in ball mill, then are mixed with composition in addition to aluminum, by ratio of water to material
Water is added for 0.57-0.58, stirs, adds aluminium powder, be uniformly mixing to obtain slurry；
（4）Slurry is poured into mould, obtains adobe body, the progress of adobe body is steam-cured, produced after placement.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710615388.XA CN107344862A (en) | 2017-07-26 | 2017-07-26 | A kind of environmental friendly regenerated aggregate aerated bricks and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710615388.XA CN107344862A (en) | 2017-07-26 | 2017-07-26 | A kind of environmental friendly regenerated aggregate aerated bricks and preparation method thereof |
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| CN107344862A true CN107344862A (en) | 2017-11-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117819852A (en) * | 2023-04-06 | 2024-04-05 | 东北电力大学 | Device and method for efficiently reinforcing recycled concrete aggregate by wet carbonization |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104446610A (en) * | 2014-11-12 | 2015-03-25 | 安徽福来缘建材有限公司 | Water-resistant high-strength foamed brick and preparation method thereof |
| CN105034129A (en) * | 2015-07-15 | 2015-11-11 | 百仪家具有限公司 | Water-resistant and heat-resistant waste tire rubber powder modified bamboo fiberboard and preparation method thereof |
-
2017
- 2017-07-26 CN CN201710615388.XA patent/CN107344862A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104446610A (en) * | 2014-11-12 | 2015-03-25 | 安徽福来缘建材有限公司 | Water-resistant high-strength foamed brick and preparation method thereof |
| CN105034129A (en) * | 2015-07-15 | 2015-11-11 | 百仪家具有限公司 | Water-resistant and heat-resistant waste tire rubber powder modified bamboo fiberboard and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 林涛等: "BixTiyOz负载TiO2气相光催化降解苯的催化行为研究", 《环境与健康杂志》 * |
| 毛日华等: "纳米二氧化钛制备的形态控制", 《上海大学学报(自然科学版)》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117819852A (en) * | 2023-04-06 | 2024-04-05 | 东北电力大学 | Device and method for efficiently reinforcing recycled concrete aggregate by wet carbonization |
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Application publication date: 20171114 |