CN106517929A - Self-compacting concrete prepared by utilizing regenerative clay brick powder and manufacturing method thereof - Google Patents
Self-compacting concrete prepared by utilizing regenerative clay brick powder and manufacturing method thereof Download PDFInfo
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- CN106517929A CN106517929A CN201610833442.3A CN201610833442A CN106517929A CN 106517929 A CN106517929 A CN 106517929A CN 201610833442 A CN201610833442 A CN 201610833442A CN 106517929 A CN106517929 A CN 106517929A
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- Prior art keywords
- self
- clay brick
- compacting concrete
- concrete
- powder
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Classifications
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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
- C04B28/04—Portland 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
- 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)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses self-compacting concrete prepared by using regenerative clay brick powder and a manufacturing method thereof. The manufacturing method is characterized in that the clay brick of building waste is manufactured into fine powder through crushing and pulverization and is used for replacing conventional additive and chemical flowable agent in an original self-compacting concrete technique. The cost of the self-compacting concrete manufactured by utilizing the technique provided by the invention is decreased compared with that of self-compacting concrete manufactured by using the original technique, but the quality is equivalent or is slightly improved.
Description
Technical field
The invention belongs to construction material coagulation great soil group, is related to one kind and is allocated as filler and viscosity using building castoff clay brick
The method that agent manufactures self-compacting concrete.(C04B 18/00)
Background technology
The technology path of concrete industry Centennial Development be which in cast need vibratory compaction, will otherwise produce gas
The problems such as bubble, hole.But sometimes because structure (such as steel bar arrangement is too close), shape (such as profile song of concrete finished product
Folding) etc. reason and cannot ideally carry out vibratory compaction.At the beginning of the eighties, there has been proposed being not necessary to the self-compaction of vibration compacting
Concrete concept.
At present, self-compacting concrete is widely used in Europe, occupies 12% share in ready-mixed concrete market, and
This consumption is still increasing.As self-compacting concrete can make the lower noise in narrow Factory Building, many prefabricated component factories
Start a large amount of employing.Self-compacting concrete has obvious technology, environment, economic dispatch advantage, can affirm that it will in a short time
Normal product is developed into by Special Products.It is contemplated that society is also very considerable to its demand.
Self-compacting concrete is manufactured using original self-compacting concrete, is prepared using cement, aggregate and water and is constructed
Other fillers such as viscosity agent or pulverized limestone to be added during material to make additive, to ensure self-compact concrete in construction material with deadweight
Separating resistance when good fluidity and long-range under effect flows.If not using viscous dynamic agent, in general at one cubic metre
Self-compacting concrete in powder stock need just reach 500-600 kilogram and (typically call powder 125 microns of persons are smaller in size than
End), therefore, except cement is also needing the filler of 100-200 kilogram of powder in the external concrete per 1 cubic metre.It is original
In self-compacting concrete, traditional filler is limestone powder.But due to using limestone powder, will necessarily increase from close
The production cost of real concrete, so be not widely used.
The discharge capacity of China's building castoff has reached 1,200,000,000 tons every year, and in these building castoffs, the content of clay brick reaches
40%-60% is arrived.Due to clay brick low intensity, water absorption rate is high, and the method for disposal for adopting at present is landfill landfill or is used as
Roadbed.The method not only needs to occupy the land resource of a large amount of preciousnesses, serious environment pollution, and high cost, product be not attached
It is value added.Therefore, the new technique for researching and developing high added value recycling clay brick is extremely urgent.
The content of the invention
The present invention will provide a kind of self-compacting concrete and its manufacture method, due to having used clay brick powder, both to from close
The production of real concrete have found cheap inserts and viscosity agent, realize the high added value money of building castoff clay brick again
Sourceization is utilized
The present invention provide the manufacture method of self-compacting concrete is：
Building castoff clay brick is produced into the clay that mean diameter is 75 microns through broken-grinding-screening first
Brick powder；
Then by cement, clay brick powder, the aggregate such as sand or stone, water and high efficiency water reducing agent coordinate according to a certain percentage, stir
The self-compacting concrete of the technology of the present invention offer is provided by mixing type.
Its raw material usage scope is:
200～500kg/m of cement3；
Clay brick 100～400kg/m of powder3；
6～12L/m of high efficiency water reducing agent3。
Also, the consumption of the aggregates such as husky or stone and water determines according to actual needs.
Described cement is the cement generally adopted in concrete technology, including portland cement, Portland cement,
Limestone portland cement, white portland cement etc..
Described clay brick powder is building castoff grinding clay brick that mean diameter is 75 microns.
The selection of high efficiency water reducing agent is well known to those skilled in the art, for example:UNF-II water reducers, NF water reducers,
SN-2 water reducers etc..
Stone used in the inventive method, sand and water are identical with manufacture portland cement concrete, especially need not say
It is bright.
In preferred embodiment of the invention,
The consumption of the cement is preferably 330～420kg/m3；
The clay brick powder consumption is preferably 180～270kg/m3；And
The consumption of the high-efficient alkali water preparation is preferably 8.5L/m3。
The self-compacting concrete provided by the inventive method, it is not necessary to using expensive chemovisity agent, agstone, powder
The mineral additives such as coal ash, need only use waste material of buildings clay brick powder.
Present invention Jing first in implementation process is tested repeatedly and is shown that one replaces original self-compaction coagulation with clay brick powder
The conventional additive of native technical requirements and chemovisity agent, the preferred scope of clay brick powder are about (150-250kg/m3), then
It is preferred that going out an optimum (200kg/m3), suitably change the proportioning of other materials on this basis, clay brick powder can be made
Add expanded range to 100～400kg/m3, the cost of the self-compacting concrete of the technology of the present invention manufacture is given birth to than original technology
The self-compacting concrete of product is substantially reduced, and quality is equal or slightly improves.
Specific embodiment
Below, in conjunction with specific embodiments, the present invention is described in further detail.
Embodiment 1:
The concrete property produced according to the proportioning listed by table 1 is listed in table 2.Can be seen that from the formula 1,3,4 of table 2
Due to the increase of clay brick powder consumption, in the case where water reducer consumption consumption is reduced, the slump flowing of concrete is also complete
Reach requirement>700mm.And in the case where the consumption of cement is reduced, (formula 1,2,3), the intensity of concrete still reaches
More than 60Mpa.And work as cement consumption and reduce most 280kg/m3When (formula 4), the intensity of concrete still reaches 49.8Mpa, can
See, low intensive self-compacting concrete can be manufactured.And in whole whipping process without find from
Analysis and excreting water phenomenon.
The proportioning of 1 concrete of table
The characteristic of 2 fresh concrete of table and maturing
Embodiment 2
The coagulation soil characteristics that proportioning according to table 3 is manufactured is listed in table 4.As can be seen from Table 4, with clay brick powder consumption
Increase, the intensity of self-compacting concrete increased, and most preferably discarded coal ash consumption is 200～300kg/m3。
The proportioning of 3 concrete of table
The characteristic of 4 fresh concrete of table and maturing
Embodiment 3:
The self-compaction manufactured to the self-compacting concrete of present invention manufacture and using original method in the present embodiment shown in table 5
Concrete performance compares.
The Performance of Self-compacting Concrete of the self-compacting concrete of 5 the inventive method of table manufacture and the manufacture of original method compares
Two groups of (totally four kinds) concrete are listed in table 5.1- originals are to represent that first group of use original technology method is adjusted
The self-compacting concrete of system, it is to represent that first group of the clay brick powder using the present invention replaces the viscosity agent in original technology that 1- glues
The self-compacting concrete of manufacture.It can be seen that the formula of the first concrete (1- glues) of the present invention and original technology (1- is former) formula phase
Than instead of the viscosity agent and refined fly ash in original technology, the items of the self-compacting concrete of gained with clay brick powder
Can all better than original technology.
Seen by second group in table 5, second self-compacting concrete (2- glues) recipe ratio original technology (2- of the present invention
It is former) the multiplex 30 kilograms of cement of formula, replace viscosity agent and refined fly ash with clay brick, though on elastic modelling quantity (E) slightly
It is but the still slightly above original technology in intensity less than original technology, and slump extension diameter is greater than original technology,
Flowing time is short across original technology.
Although having used ordinary cement in above example, any cement can be used in actual use, because self-compaction
The concept of concrete is only the vibratory compaction that is not necessary to of concrete, but fills automatically closely knit by the gravity of itself, is not related to
And which kind of cement used.
The self-compacting concrete manufactured using the technology of the present invention, is on the one hand maintained concrete and has excellent mobility,
Without the need for vibratory compaction；And replace conventional additive and chemovisity agent using clay brick powder, manufacturing cost is reduced, is solved
The handling problems of building castoff clay brick, and make which realize high value added utilization in self-compacting concrete, achieve many things at one stroke.
Claims (5)
1. self-compacting concrete and its manufacture method are prepared using regenerated clay brick powder, including：
By the cement of following ratios, clay brick powder and high efficiency water reducing agent, coordinate with aggregate and water, stirring molding obtains final product described
Self-compacting concrete,
Wherein, the amount ranges of each raw material are:
200～500kg/m3 of cement；
Clay brick 100～400kg/m3 of powder；
6～12L/m3 of high efficiency water reducing agent.
2. manufacture method as claimed in claim 1, it is characterized by：Described clay brick powder for mean diameter be 75 microns again
Raw clay brick powder.
3. manufacture method as claimed in claim 1, it is characterized by：The consumption of the cement is 330～420kg/m3。
4. manufacture method as claimed in claim 1 or 2, it is characterized by：The consumption of the clay brick powder is 200～300kg/m3。
5. manufacture method as claimed in claim 1, it is characterized by：Any chemovisity is not needed when preparing self-compacting concrete
Agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610833442.3A CN106517929A (en) | 2016-09-19 | 2016-09-19 | Self-compacting concrete prepared by utilizing regenerative clay brick powder and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610833442.3A CN106517929A (en) | 2016-09-19 | 2016-09-19 | Self-compacting concrete prepared by utilizing regenerative clay brick powder and manufacturing method thereof |
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| CN106517929A true CN106517929A (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610833442.3A Pending CN106517929A (en) | 2016-09-19 | 2016-09-19 | Self-compacting concrete prepared by utilizing regenerative clay brick powder and manufacturing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108264292A (en) * | 2018-01-04 | 2018-07-10 | 北京建筑大学 | A kind of controllable low strong material of building waste and its application |
| CN109516739A (en) * | 2018-12-17 | 2019-03-26 | 东南大学 | A kind of clay brick powder cement mortar of alkali-activated carbonatite |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363575A (en) * | 2011-05-16 | 2012-02-29 | 葛智 | Waste chamotte brick regeneration and utilization method, and concrete doped with waste chamotte brick powder |
| CN102951882A (en) * | 2011-08-17 | 2013-03-06 | 中冶天工上海十三冶建设有限公司 | Composite lightweight thermal insulating concrete composition |
| CN104788054A (en) * | 2015-04-10 | 2015-07-22 | 浙江大学宁波理工学院 | Eco-friendly self-compacting concrete prepared through complete recycling of waste concrete |
-
2016
- 2016-09-19 CN CN201610833442.3A patent/CN106517929A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363575A (en) * | 2011-05-16 | 2012-02-29 | 葛智 | Waste chamotte brick regeneration and utilization method, and concrete doped with waste chamotte brick powder |
| CN102951882A (en) * | 2011-08-17 | 2013-03-06 | 中冶天工上海十三冶建设有限公司 | Composite lightweight thermal insulating concrete composition |
| CN104788054A (en) * | 2015-04-10 | 2015-07-22 | 浙江大学宁波理工学院 | Eco-friendly self-compacting concrete prepared through complete recycling of waste concrete |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108264292A (en) * | 2018-01-04 | 2018-07-10 | 北京建筑大学 | A kind of controllable low strong material of building waste and its application |
| CN109516739A (en) * | 2018-12-17 | 2019-03-26 | 东南大学 | A kind of clay brick powder cement mortar of alkali-activated carbonatite |
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