CN108358598A - It is a kind of using concrete recycle material as the light-weight brick of raw material - Google Patents
It is a kind of using concrete recycle material as the light-weight brick of raw material Download PDFInfo
- Publication number
- CN108358598A CN108358598A CN201810103842.8A CN201810103842A CN108358598A CN 108358598 A CN108358598 A CN 108358598A CN 201810103842 A CN201810103842 A CN 201810103842A CN 108358598 A CN108358598 A CN 108358598A
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- China
- Prior art keywords
- light
- concrete recycle
- raw material
- weight brick
- charing
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Links
- 239000000463 material Substances 0.000 title claims abstract description 62
- 239000004567 concrete Substances 0.000 title claims abstract description 55
- 239000011449 brick Substances 0.000 title claims abstract description 33
- 239000002994 raw material Substances 0.000 title claims abstract description 30
- 239000000835 fiber Substances 0.000 claims abstract description 55
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000010881 fly ash Substances 0.000 claims abstract description 15
- 239000002893 slag Substances 0.000 claims abstract description 15
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims abstract description 8
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims abstract description 8
- 239000001099 ammonium carbonate Substances 0.000 claims abstract description 8
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 8
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 7
- 235000019795 sodium metasilicate Nutrition 0.000 claims abstract description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 7
- 238000001179 sorption measurement Methods 0.000 claims abstract description 7
- 239000003513 alkali Substances 0.000 claims abstract description 5
- 239000003518 caustics Substances 0.000 claims abstract description 5
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims abstract description 3
- 244000198134 Agave sisalana Species 0.000 claims description 43
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 34
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 238000000498 ball milling Methods 0.000 claims description 13
- 238000004140 cleaning Methods 0.000 claims description 13
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000292 calcium oxide Substances 0.000 claims description 12
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 12
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 10
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 10
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 8
- 235000010333 potassium nitrate Nutrition 0.000 claims description 8
- 239000004323 potassium nitrate Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 241000196324 Embryophyta Species 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 238000007598 dipping method Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract description 4
- 238000011161 development Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000005192 partition Methods 0.000 abstract description 2
- 239000003570 air Substances 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000002386 leaching Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 235000011624 Agave sisalana Nutrition 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 229940043430 calcium compound Drugs 0.000 description 1
- 150000001674 calcium compounds Chemical class 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- 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
- C04B30/00—Compositions for artificial stone, not containing binders
- C04B30/02—Compositions for artificial stone, not containing binders containing fibrous 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
- 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
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to build reclaimed materials reutilization technology field.The invention discloses a kind of using concrete recycle material as the light-weight brick of raw material, it is made by raw materials such as concrete recycle material, blast furnace slag, flyash, silica, air entraining agent and alkaline agents, air entraining agent is the charing plant fiber of adsorption saturation ammonium bicarbonate soln, and alkaline agent is made of caustic alkali and sodium metasilicate.The discarded concrete that script is become problem by the present invention carries out reasonable development, solves corresponding environment and resource problem；Light-weight brick in the present invention has the bulk density reduced and higher intensity, can be as the material of self-supporting partition wall；Light-weight brick has preferable thermal insulation and sound insulation effect.
Description
Technical field
The present invention relates to building reclaimed materials reutilization technology fields, more particularly, to one kind using concrete recycle material as raw material
Light-weight brick.
Background technology
In recent years, social development is rapid, and the rate of expansion in city is also getting faster, also like a raging fire carry out of removing.
A large amount of recycled concrete aggregate is generated after housing demolition；In the past, these concrete blocks were just discarded after rejecting reinforcing bar therein
As building waste, great harmful effect is caused to The Surroundings in Cities.In recent years, after thering is removal concrete block in part to be crushed
The effects that filling of the concrete recycle material for roadbed is made, but as the yield of concrete recycle material is increasing, by it
It transports to and carries out roadbed it is slightly higher to fill cost being not to be popular, therefore develop a kind of new application of concrete recycle material and become and work as
Business is anxious.
Invention content
To solve the above problems, the present invention provides the discarded concrete reclaimed materials works generated when a kind of removal using building
For light-weight brick made from raw material, the utilization rate of waste can be improved, reduces the wasting of resources, and light-weight brick safety collar obtained
It protects, the effect of sound-insulating and heat-insulating self-supporting can be played.
To achieve the above object, the technical solution adopted by the present invention is as follows：
It is a kind of using concrete recycle material as the light-weight brick of raw material, be made by the raw material of following parts by weight：
100 parts of concrete recycle material, 40~50 parts of blast furnace slag, 20~30 parts of flyash, 0~15 part of silica 1, air entraining agent 15
~20 parts, 10~15 parts of alkaline agent.
For the present invention using concrete recycle material as aggregate, blast furnace slag and flyash form a kind of brickmaking premix as powder
Material, in order to make the component in premix more rationally some silica are additionally added thereto with balance the silicon in raw material,
Aluminium, Calcium compounds, alkaline agent are the additives in order to make to occur between each component gelling reaction to form intensity, also need to combine water one
It is same to be acted on；Vapor when water therein then has steam-cured provides.
Preferably, air entraining agent is the charing plant fiber of adsorption saturation ammonium bicarbonate soln.
It uses sodium bicarbonate for bleed foaming agent in the present invention, and sodium bicarbonate is supported on charing plant fiber and is added
Into raw material, sodium bicarbonate can be made to be more prone to add in this way, addition also evenly, while after the completion of bleed, as
The charing plant fiber of carrier can also increase the intensity of light-weight brick as enhancing base.
Preferably, charing plant fiber is charing sisal fiber.
Sisal fiber is the fiber for picking up from sisal hemp blade face, and blade face fiber has more pore passage structures, formed after charing
Carbon fiber has more ducts, can have better absorption property, can be in the more ammonium hydrogen carbonate of subsequent adsorbtion.
Preferably, charing sisal fiber is made by following methods, sisal fiber is cleaned with water, it then will be 40~45
DEG C saturation potassium nitrate solution in impregnate 3~6 hours, the sisal fiber after cleaning and dipping later, by the sisal fiber after cleaning
Ball milling is blended 4~6 hours with 2~2.5 times of water of its weight, is dried after ball milling is blended, and 500~650 DEG C under anoxybiotic environment
Lower charing process 3~4 hours is added in 0.5~1.0mol/L sodium bicarbonate solutions after charing and impregnates 1~2 hour, finally uses
Charing sisal fiber is made in water cleaning, drying.
The preparation of charing sisal fiber is divided into three parts, charing pre-treatment, charing and charing post-processing.Before charing, first will
Sisal fiber is immersed in potassium nitrate solution, makes to reduce crosslinking more between fiber to clear up the colloid between fiber and carbohydrate
Sisal fiber is carried out mechanical force dispersion again to facilitate follow-up charing process, after potassium nitrate immersion and carries out ball-milling treatment by dispersion,
So that sisal fiber disperses as far as possible.Charing process, will premenstrual treated sisal fiber anoxybiotic charcoal at 500~650 DEG C
Change is handled, and anoxybiotic addition can be vacuum, or the environment of the non-oxidizing gas such as filling nitrogen.After charing, after progress
Continuous processing, is impregnated with sodium bicarbonate solution, one remains in fiber surface and the impurity of inside after charing to remove, and two live
Change the fiber after charing.
Preferably, alkaline agent is by caustic alkali and sodium metasilicate by weight 2：1~1.5 composition.
Preferably, caustic alkali is sodium hydroxide.
Preferably, the content of calcium oxide is 30~45wt% in blast furnace slag, the content of aluminum oxide is not less than 10wt%,
The content of Si oxide is not less than 20wt%.
Preferably, Si oxide content is not less than 50wt% in flyash, aluminium oxide content is not less than 30wt%, iron oxygen
Compound content is not more than 7wt%.
Preferably, Si oxide content is not less than 35wt% in concrete recycle material, calcium oxide content is not more than
20wt%, aluminium oxide content are not more than 15wt%；The grain size of concrete recycle material is 2~10mm, the intermediate value of concrete recycle material
Grain size D50For 4~5mm.
Specific component mineral constituent is complicated in the solid waste such as blast furnace slag, flyash, concrete recycle material, in detail by it
There is certain difficulty the form by oxide is converted in mineral constituent therein in the subjects such as mineralogy for thin statement
Composition therein is described.Therefore, when being described with addresses such as Si oxide, aluminum oxide, ferriferous oxides in the present invention,
It is exactly Si oxide, aluminum oxide, ferriferous oxide etc. not represent component therein, and a kind of only shape of metering/description
Formula.
Preferably, light-weight brick uses steam steam-cured 12~16 hours after material mixing, molding.
Therefore, the invention has the advantages that：
（1）The discarded concrete that script is become problem by the present invention carries out reasonable development, solves corresponding environment and resource is asked
Topic；
（2）Light-weight brick in the present invention has the bulk density reduced and higher intensity, can be as the material of self-supporting partition wall
Material；
（3）Light-weight brick in the present invention has preferable thermal insulation and sound insulation effect.
Specific implementation mode
Technical scheme of the present invention is further described With reference to embodiment.
Obviously, the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, all other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
In the present invention, if not refering in particular to, all equipment and raw material is commercially available or the industry is common,
Method in following embodiments is unless otherwise instructed this field conventional method.
Embodiment 1
It is a kind of using concrete recycle material as the light-weight brick of raw material, be made by the raw material of following parts by weight：
100 parts of concrete recycle material, 40 parts of blast furnace slag, 20 parts of flyash, 0 part of silica 1,15 parts of air entraining agent, 10 parts of alkaline agent.
Wherein, air entraining agent is the charing sisal fiber of adsorption saturation ammonium bicarbonate soln；Sisal fiber is carbonized by with lower section
Method is made, and is cleaned sisal fiber with water, then will be impregnated in 40 DEG C of saturation potassium nitrate solution 3 hours, cleaning leaching later
The water of 2 times of sisal fiber and its weight after cleaning is blended ball milling 4 hours, is dried after ball milling is blended by the sisal fiber after bubble,
And charing process 3 hours at 500 DEG C under anoxybiotic environment, it is added in 0.5mol/L sodium bicarbonate solutions that impregnate 1 small after charing
When, it finally washes with water, dry obtained charing sisal fiber；
Alkaline agent is by sodium hydroxide and sodium metasilicate by weight 2：1 composition.
The content of calcium oxide is 30wt% in blast furnace slag, and the content of aluminum oxide is not less than 10wt%, and Si oxide contains
Amount is not less than 20wt%；Si oxide content is not less than 50wt% in flyash, and aluminium oxide content is not less than 30wt%, iron oxidation
Object content is not more than 7wt%；Si oxide content is not less than 35wt% in concrete recycle material, and calcium oxide content is not more than
20wt%, aluminium oxide content are not more than 15wt%；The grain size of concrete recycle material is 2~10mm, the intermediate value of concrete recycle material
Grain size D50For 4mm；
In addition, light-weight brick uses steam steam-cured 12 hours after material mixing, molding.
Embodiment 2
It is a kind of using concrete recycle material as the light-weight brick of raw material, be made by the raw material of following parts by weight：
100 parts of concrete recycle material, 48 parts of blast furnace slag, 22 parts of flyash, 2 parts of silica 1,17 parts of air entraining agent, 12 parts of alkaline agent.
Wherein, air entraining agent is the charing sisal fiber of adsorption saturation ammonium bicarbonate soln；Sisal fiber is carbonized by with lower section
Method is made, and is cleaned sisal fiber with water, then will be impregnated in 43 DEG C of saturation potassium nitrate solution 4 hours, cleaning leaching later
Ball milling is blended 4.5 hours, after ball milling is blended in the water of 2.2 times of sisal fiber and its weight after cleaning by the sisal fiber after bubble
Drying, and charing process 3.5 hours at 550 DEG C under anoxybiotic environment, are added to after charing in 0.8mol/L sodium bicarbonate solutions
It impregnates 1.5 hours, finally washes with water, dries obtained charing sisal fiber；
Alkaline agent is by sodium hydroxide and sodium metasilicate by weight 2：1.4 composition.
The content of calcium oxide is 35wt% in blast furnace slag, and the content of aluminum oxide is not less than 10wt%, and Si oxide contains
Amount is not less than 20wt%；Si oxide content is not less than 50wt% in flyash, and aluminium oxide content is not less than 30wt%, iron oxidation
Object content is not more than 7wt%；Si oxide content is not less than 35wt% in concrete recycle material, and calcium oxide content is not more than
20wt%, aluminium oxide content are not more than 15wt%；The grain size of concrete recycle material is 2~10mm, the intermediate value of concrete recycle material
Grain size D50For 4.5mm；
In addition, light-weight brick uses steam steam-cured 12~16 hours after material mixing, molding.
Embodiment 3
It is a kind of using concrete recycle material as the light-weight brick of raw material, be made by the raw material of following parts by weight：
100 parts of concrete recycle material, 42 parts of blast furnace slag, 27 parts of flyash, 3 parts of silica 1,18 parts of air entraining agent, 13 parts of alkaline agent.
Wherein, air entraining agent is the charing sisal fiber of adsorption saturation ammonium bicarbonate soln；Sisal fiber is carbonized by with lower section
Method is made, and is cleaned sisal fiber with water, then will be impregnated in 43 DEG C of saturation potassium nitrate solution 5 hours, cleaning leaching later
Ball milling is blended 5.5 hours, after ball milling is blended in the water of 2.3 times of sisal fiber and its weight after cleaning by the sisal fiber after bubble
Drying, and charing process 3.5 hours at 600 DEG C under anoxybiotic environment, are added to after charing in 0.9mol/L sodium bicarbonate solutions
It impregnates 1.5 hours, finally washes with water, dries obtained charing sisal fiber；
Alkaline agent is by sodium hydroxide and sodium metasilicate by weight 2：1.1 composition.
The content of calcium oxide is 40wt% in blast furnace slag, and the content of aluminum oxide is not less than 10wt%, and Si oxide contains
Amount is not less than 20wt%；Si oxide content is not less than 50wt% in flyash, and aluminium oxide content is not less than 30wt%, iron oxidation
Object content is not more than 7wt%；Si oxide content is not less than 35wt% in concrete recycle material, and calcium oxide content is not more than
20wt%, aluminium oxide content are not more than 15wt%；The grain size of concrete recycle material is 2~10mm, the intermediate value of concrete recycle material
Grain size D50For 4.5mm；
In addition, light-weight brick uses steam steam-cured 12~16 hours after material mixing, molding.
Embodiment 4
It is a kind of using concrete recycle material as the light-weight brick of raw material, be made by the raw material of following parts by weight：
100 parts of concrete recycle material, 50 parts of blast furnace slag, 30 parts of flyash, 5 parts of silica 1,20 parts of air entraining agent, 15 parts of alkaline agent.
Wherein, air entraining agent is the charing sisal fiber of adsorption saturation ammonium bicarbonate soln；Sisal fiber is carbonized by with lower section
Method is made, and is cleaned sisal fiber with water, then will be impregnated in 45 DEG C of saturation potassium nitrate solution 6 hours, cleaning leaching later
The water of 2.5 times of sisal fiber and its weight after cleaning is blended ball milling 6 hours, is dried after ball milling is blended by the sisal fiber after bubble
It is dry, and charing process 4 hours at 650 DEG C under anoxybiotic environment, it is added to after charing in 1.0mol/L sodium bicarbonate solutions and impregnates 2
Hour, it finally washes with water, dry obtained charing sisal fiber；
Alkaline agent is by sodium hydroxide and sodium metasilicate by weight 2：1.5 composition.
The content of calcium oxide is 45wt% in blast furnace slag, and the content of aluminum oxide is not less than 10wt%, and Si oxide contains
Amount is not less than 20wt%；Si oxide content is not less than 50wt% in flyash, and aluminium oxide content is not less than 30wt%, iron oxidation
Object content is not more than 7wt%；Si oxide content is not less than 35wt% in concrete recycle material, and calcium oxide content is not more than
20wt%, aluminium oxide content are not more than 15wt%；The grain size of concrete recycle material is 2~10mm, the intermediate value of concrete recycle material
Grain size D50For 5mm；
In addition, light-weight brick uses steam steam-cured 16 hours after material mixing, molding.
Technical indicator：
Performance parameter detecting is carried out to the light-weight brick in Examples 1 to 4, each performance parameter is as follows：
Refractoriness：Not less than 650 degree, meet level-one refractory material standard；
Thermal coefficient：0.13~0.15W/ (mK);
Shrinking percentage：No more than 0.4mm/m
Bulk density：No more than 750kg/m3。
It should be understood that those skilled in the art, can be improved or be become according to the above description
It changes, and all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (10)
1. a kind of using concrete recycle material as the light-weight brick of raw material, it is characterised in that be made by the raw material of following parts by weight：
100 parts of concrete recycle material, 40~50 parts of blast furnace slag, 20~30 parts of flyash, 0~15 part of silica 1, air entraining agent 15
~20 parts, 10~15 parts of alkaline agent.
2. according to claim 1 a kind of using concrete recycle material as the light-weight brick of raw material, it is characterised in that：
The air entraining agent is the charing plant fiber of adsorption saturation ammonium bicarbonate soln.
3. according to claim 2 a kind of using concrete recycle material as the light-weight brick of raw material, it is characterised in that：
The charing plant fiber is charing sisal fiber.
4. according to claim 1 a kind of using concrete recycle material as the light-weight brick of raw material, it is characterised in that：
The charing sisal fiber is made by following methods, is cleaned sisal fiber with water, then will be full at 40~45 DEG C
With impregnate 3~6 hours in potassium nitrate solution, the sisal fiber after cleaning and dipping later, by after cleaning sisal fiber and its is heavy
Ball milling is blended 4~6 hours in the water of 2~2.5 times of amount, is dried after ball milling is blended, and carbonized at 500~650 DEG C under anoxybiotic environment
Processing 3~4 hours, is added in 0.5~1.0mol/L sodium bicarbonate solutions after charing and impregnates 1~2 hour, finally clear with water
It washes, dry obtained charing sisal fiber.
5. according to claim 1 a kind of using concrete recycle material as the light-weight brick of raw material, it is characterised in that：
The alkaline agent is by caustic alkali and sodium metasilicate by weight 2：1~1.5 composition.
6. according to claim 4 a kind of using concrete recycle material as the light-weight brick of raw material, it is characterised in that：
The caustic alkali is sodium hydroxide.
7. according to claim 1 a kind of using concrete recycle material as the light-weight brick of raw material, it is characterised in that：
The content of calcium oxide is 30~45wt% in the blast furnace slag, and the content of aluminum oxide is not less than 10wt%, silicon oxidation
The content of object is not less than 20wt%.
8. according to claim 1 a kind of using concrete recycle material as the light-weight brick of raw material, it is characterised in that：
Si oxide content is not less than 50wt% in the flyash, and aluminium oxide content is not less than 30wt%, and ferriferous oxide contains
Amount is not more than 7wt%.
9. according to claim 1 a kind of using concrete recycle material as the light-weight brick of raw material, it is characterised in that：
Si oxide content is not less than 35wt% in the concrete recycle material, and calcium oxide content is not more than 20wt%, alumina
Compound content is not more than 15wt%；The grain size of concrete recycle material is 2~10mm, the median particle diameter D of concrete recycle material50For 4~
5mm。
10. it is a kind of using concrete recycle material as the light-weight brick of raw material according to claims 1 or 2 or 4 or 5 or 7 or 8 or 9,
It is characterized in that：
The light-weight brick uses steam steam-cured 12~16 hours after material mixing, molding.
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| CN103304200A (en) * | 2013-06-13 | 2013-09-18 | 马鞍山十七冶工程科技有限责任公司 | Foamed concrete and preparation method thereof |
| CN104371137A (en) * | 2014-11-06 | 2015-02-25 | 浙江比例包装股份有限公司 | Preparation method of high-dispersity foaming agent |
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2018
- 2018-02-01 CN CN201810103842.8A patent/CN108358598B/en active Active
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| CN101289332A (en) * | 2008-06-06 | 2008-10-22 | 昆明理工大学 | Low-temperature ceramic foam material and production method thereof |
| CN103304200A (en) * | 2013-06-13 | 2013-09-18 | 马鞍山十七冶工程科技有限责任公司 | Foamed concrete and preparation method thereof |
| CN104371137A (en) * | 2014-11-06 | 2015-02-25 | 浙江比例包装股份有限公司 | Preparation method of high-dispersity foaming agent |
| CN104829199A (en) * | 2015-03-20 | 2015-08-12 | 湖北工业大学 | Thermal-insulation and humidity-regulating foam concrete material and preparation method thereof |
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