CN108249808A - A kind of concrete admixture made using building castoff - Google Patents
A kind of concrete admixture made using building castoff Download PDFInfo
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- CN108249808A CN108249808A CN201810100258.7A CN201810100258A CN108249808A CN 108249808 A CN108249808 A CN 108249808A CN 201810100258 A CN201810100258 A CN 201810100258A CN 108249808 A CN108249808 A CN 108249808A
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- building castoff
- concrete admixture
- concrete
- rotating speed
- calcium carbonate
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/26—Carbonates
- C04B14/28—Carbonates of calcium
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/18—Waste materials; Refuse organic
- C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
- C04B18/248—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork from specific plants, e.g. hemp fibres
-
- 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
- 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
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
-
- 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
- C04B20/04—Heat treatment
-
- 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)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Botany (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of concrete admixtures made using building castoff, are made of following material：2 ~ 3wt% of tufa stone mountain flour；2 ~ 3wt% of thermoplastic resin；10 ~ 25wt% of activity excitant；70 ~ 80wt% of building castoff；Modified bamboo fibre：0.1~0.4wt%；1 ~ 5wt% of modified nano calcium carbonate；The sum of the above components are 100%.Tufa stone mountain flour and thermoplastic resin interworking in the present invention, so that concrete strength greatly improves, the addition of modified bamboo fibre and modified nano calcium carbonate compensates for the defects of concrete surface is not fine and close enough, more excellent matching performance is brought for concrete, solve the problems, such as that concrete whipping process easily generates bubble, more excellent workability is provided, ensure its compression strength height, durability is good, Yi Xingjia, the advantages that high temperature resistant, without lump after stirring evenly, in uniform state, water retention can be above 95%, water absorption rate is less than 10% for 24 hours and compression strength and flexural strength are far above admixture conventional currently on the market.
Description
Technical field
The present invention relates to a kind of concrete admixtures made using building castoff and preparation method thereof.
Background technology
Building waste refers to the slag that people generate in the production activity for being engaged in the construction industries such as removal, construction, finishing, repairerment
Soil, waste and old concrete, waste and old masonry and other wastes general designation.Classify by generating source, building waste can be divided into engineering dregs,
Decoration garbage, removal rubbish, engineering slurry etc.；Classify by constituent, dregs, concrete block, broken can be divided into building waste
Stone, brick and tile fragment, waste mortar, mud, asphalt blocks, waste plastics, old metal, useless bamboo wood etc..
Concrete admixture is to mix for engineering fields such as architectural engineering, science of bridge building, hydraulic engineering, municipal works
It is mixed during concrete processed, to improve the substance of concrete performance, according to the regulation of Its Relevant Technology Standards, incorporation
No more than the 5% of cement quality.The main function of concrete admixture is to improve the performance of fresh concrete and improve hardening to mix
Coagulate the performance of soil.Admixture can effectively improve the performance of concrete, and with good economic efficiency.In many countries all
It is widely used, becomes material indispensable in concrete.The especially high-effect use for reducing agent.Cement particle energy
Adequately disperseed, water consumption greatly reduces, and cement potential is not fully exerted, and causes Behavior of Hardened Cement Paste comparatively dense, pore structure
Improved well with interface area micro-structure, so that the physical and mechanical property of concrete is greatly improved.
Therefore, exploitation one kind can save the pressure after resource, waste utilization, while Specifications such as admixture hardening
Broken index, water retention property, pervious function, water absorption rate and mechanical property etc. are showed and excellent are made using building castoff
Concrete admixture is a urgent problem to be solved.
Invention content
The technical problem to be solved by the present invention is to overcome the defects of normal concrete performance is inadequate in the prior art, one is provided
The high performance concrete admixture made using building castoff of kind.
In order to solve the above technical problem, the present invention provides following technical solutions：
A kind of concrete admixture made using building castoff of the present invention, is made of following material：
The sum of the above components are 100%.
Preferably, the thermoplastic resin is thermoplastic acrylic resin, thermoplastic poly carbonic ether, thermoplastic poly nylon tree
One or more of fat.
Preferably, the activity excitant is propylene glycol monomethyl ether, dimethyl ester, n-butyl acetate, ethylene glycol monomethyl ether, ethylene glycol
One or more of monobutyl ether acetate.
Preferably, the modified bamboo fibre is anti-settling agent.
The invention also discloses a kind of concrete admixtures made using building castoff, include the following steps：
(1) activity excitant of 1/3~2/3 formula ratio is added in into reaction kettle；
(2) blender is started, adds in the modification bamboo fibre, thermoplastic resin and tufa stone mountain flour of formula ratio, and is stirred equal
It is even；
(3) building castoff of the formula ratio after crushing is added in, raising temperature is stirred to 50~60 DEG C, divides at a high speed
It is dissipated to coating fineness≤35um；
(4) rotating speed of blender is reduced, residual activity exciting agent is added in, stirs evenly；
(5) modified nano calcium carbonate of formula ratio is added in, rotating speed is reduced, stirs evenly, is obtained described useless using building
The concrete admixture that gurry makes.
Preferably, in step (1)~(5), entire whipping process temperature control is below 60 DEG C.
Preferably, in step (2), blender rotating speed is 400~600 revs/min, and mixing time is 70~80 minutes.
Preferably, in step (3), blender rotating speed is 1100~1200 revs/min.
Preferably, in step (4), blender rotating speed is 560~800 revs/min, and mixing time is 40~60 minutes.
Preferably, in step (5), blender rotating speed is 250~500 revs/min, and mixing time is 40~60 minutes.
Preferably, the method for modifying of the modified nano calcium carbonate is by calcium carbonate ball milling under nitrogen or argon
Be 100~500nm to grain size, then under nitrogen protection to be to slowly warm up to 400 DEG C under 3~5 DEG C/min, be sintered 4~6h and
.
Preferably, it is to be freeze-dried the superfine powder of 600-800 mesh that the method for modifying of the modification bamboo fibre, which is fineness,
Being mixed with diisocyanate solution and polyhydric alcohol solutions afterwards, reacts 1~4 hour.
The advantageous effect that is reached of the present invention is：
(1) tufa stone mountain flour, tufa stone mountain flour and thermoplastic resin interworking are introduced, is provided useless using building far above general
The antiseptic property for the concrete admixture that gurry makes, has more excellent anti-corrosion effect, anti-corrosion life is up to 30 after use
Year or more；
(2) the special modified technique of modified calcium carbonate to form the micropore in countless special apertures inside it, aperture with
Aperture is nested against one another；Modified bamboo fibre micropore after modification is not easy to be destroyed；Modified bamboo fibre and modified nano-meter caco 3
The addition of calcium compensates for the defects of concrete surface is not fine and close enough, and more excellent matching performance can be carried out for concrete belt, solves
Concrete whipping process of having determined easily leads to the problem of bubble, provides more excellent mechanics and workability；
(3) building castoff is turned waste into wealth, not only improves environment, and saved resource.
Specific embodiment
The preferred embodiment of the present invention is illustrated below, it should be understood that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1
A kind of concrete admixture made using building castoff of the present invention, is included the following steps：
(1) 4kg propylene glycol monomethyl ethers are added in into reaction kettle；
(2) blender is started, blender rotating speed is 400 revs/min, adds in anti-settling agent 0.1kg, thermoplastic acrylic resin
3kg and tufa stone mountain flour 3kg, and stir evenly, mixing time is 80 minutes；
(3) building castoff of 80kg is added in, raising temperature is stirred to 60 DEG C, and blender rotating speed is 1100 revs/min
Clock, high speed dispersion to coating fineness are less than 35um；
(4) rotating speed of blender is reduced to 800 revs/min, is added in residue 6kg propylene glycol monomethyl ethers, is stirred evenly, blender
Rotating speed is 560 revs/min, and mixing time is 60 minutes；
(5) modified nano calcium carbonate 3.9kg is added in, rotating speed is reduced to 500 revs/min, stirs evenly, mixing time 60
Minute, obtain the concrete admixture made using building castoff.
Embodiment 2
A kind of concrete admixture made using building castoff of the present invention, is included the following steps：
(1) 13kg propylene glycol monomethyl ethers are added in into reaction kettle；
(2) blender is started, blender rotating speed is 600 revs/min, adds in anti-settling agent 0.4kg, thermoplastic acrylic resin
2kg and tufa stone mountain flour 2kg, and stir evenly, mixing time is 70 minutes；
(3) building castoff of 70kg is added in, raising temperature is stirred to 50 DEG C, and blender rotating speed is 1200 revs/min
Clock, high speed dispersion to coating fineness are less than 35um；
(4) rotating speed of blender is reduced to 560 revs/min, is added in residue 10kg propylene glycol monomethyl ethers, is stirred evenly, stirs
Time is 60 minutes；
(5) modified nano calcium carbonate 2.6kg is added in, rotating speed is reduced to 500 revs/min, stirs evenly, mixing time 60
Minute, obtain the concrete admixture made using building castoff.
According to embodiment 1 and embodiment 2 and admixture conventional currently on the market is selected to design test as a comparison respectively
Item performance indicator is as a result as follows：
As seen from the above table, the crush index after admixture composite admixture hardening of the invention, without lump after stirring evenly,
In uniform state, water retention can be above 95%, water absorption rate is less than 10% for 24 hours and compression strength and flexural strength are far above mesh
The admixture of preceding routine in the market.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify to the technical solution recorded in foregoing embodiments or carry out equivalent replacement to which part technical characteristic.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (10)
1. a kind of concrete admixture made using building castoff, which is characterized in that be made of following material：
2 ~ 3wt% of tufa stone mountain flour；
2 ~ 3wt% of thermoplastic resin；
10 ~ 25wt% of activity excitant；
70 ~ 80wt% of building castoff, wherein, building castoff purity is more than 99%；
Modified bamboo fibre： 0.1~0.4wt%；
1 ~ 5wt% of modified nano calcium carbonate；
The sum of the above components are 100%.
2. a kind of concrete admixture made using building castoff according to claim 1, which is characterized in that described
Thermoplastic resin is one or more of thermoplastic acrylic resin, thermoplastic poly carbonic ether, thermoplastic poly nylon resin.
3. a kind of concrete admixture made using building castoff according to claim 1, which is characterized in that it is logical
The method for crossing following steps is prepared：
（1）The activity excitant of 1/3 ~ 2/3 formula ratio is added in into reaction kettle；
（2）Blender is started, adds in the modification bamboo fibre, thermoplastic resin and tufa stone mountain flour of formula ratio, and is stirred evenly；
（3）The building castoff of the formula ratio after crushing is added in, raising temperature is stirred to 50 ~ 60 DEG C, high speed dispersion to painting
Expect fineness≤35um；
（4）The rotating speed of blender is reduced, remaining mixed solvent is added in, stirs evenly；
（5）The modified nano calcium carbonate of formula ratio is added in, rotating speed is reduced, stirs evenly, obtains the utilization building castoff
The concrete admixture of making.
4. a kind of concrete admixture made using building castoff according to claim 3, which is characterized in that in step
Suddenly（1）~（5）In, entire whipping process temperature control is below 60 DEG C.
5. a kind of concrete admixture made using building castoff according to claim 3, which is characterized in that in step
Suddenly（2）In, blender rotating speed is 400 ~ 600 revs/min, and mixing time is 70 ~ 80 minutes.
6. a kind of concrete admixture made using building castoff according to claim 3, which is characterized in that in step
Suddenly（3）In, blender rotating speed is 1100 ~ 1200 revs/min.
7. a kind of concrete admixture made using building castoff according to claim 3, which is characterized in that in step
Suddenly（4）In, blender rotating speed is 560 ~ 800 revs/min, and mixing time is 40 ~ 60 minutes.
8. a kind of concrete admixture made using building castoff according to claim 3, which is characterized in that in step
Suddenly（5）In, blender rotating speed is 250 ~ 500 revs/min, and mixing time is 40 ~ 60 minutes.
9. a kind of concrete admixture made using building castoff according to claim 1, which is characterized in that described
The method of modifying of modified nano calcium carbonate be that calcium carbonate is milled to grain size under nitrogen or argon is 100~500nm,
Then it is sintered 4~6h to be to slowly warm up to 400 DEG C under 3~5 DEG C/min under nitrogen protection and obtains.
A kind of 10. concrete admixture made using building castoff according to claim 1, which is characterized in that institute
The method of modifying of modification bamboo fibre stated is that fineness is molten with diisocyanate after the superfine powder of 600-800 mesh is freeze-dried
Liquid and polyhydric alcohol solutions are mixed, and react 1~4 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810100258.7A CN108249808A (en) | 2018-02-01 | 2018-02-01 | A kind of concrete admixture made using building castoff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810100258.7A CN108249808A (en) | 2018-02-01 | 2018-02-01 | A kind of concrete admixture made using building castoff |
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| Publication Number | Publication Date |
|---|---|
| CN108249808A true CN108249808A (en) | 2018-07-06 |
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ID=62743528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810100258.7A Pending CN108249808A (en) | 2018-02-01 | 2018-02-01 | A kind of concrete admixture made using building castoff |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109053017A (en) * | 2018-09-07 | 2018-12-21 | 江苏宇辉住宅工业有限公司 | A kind of concrete admixture made using waste |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100830986B1 (en) * | 2007-12-21 | 2008-05-20 | 주식회사 태영알이씨 | The flex road elasticity pavement for a bicycle and the method for executing the flex road elasticity pavement |
| CN107640923A (en) * | 2017-09-20 | 2018-01-30 | 河南省三门峡黄河大桥高速公路建设有限公司 | A kind of additive for improving concrete strength and preparation method thereof |
-
2018
- 2018-02-01 CN CN201810100258.7A patent/CN108249808A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100830986B1 (en) * | 2007-12-21 | 2008-05-20 | 주식회사 태영알이씨 | The flex road elasticity pavement for a bicycle and the method for executing the flex road elasticity pavement |
| CN107640923A (en) * | 2017-09-20 | 2018-01-30 | 河南省三门峡黄河大桥高速公路建设有限公司 | A kind of additive for improving concrete strength and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109053017A (en) * | 2018-09-07 | 2018-12-21 | 江苏宇辉住宅工业有限公司 | A kind of concrete admixture made using waste |
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Application publication date: 20180706 |
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