CN109053085A - A kind of regeneration concrete and preparation method thereof - Google Patents
A kind of regeneration concrete and preparation method thereof Download PDFInfo
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- CN109053085A CN109053085A CN201811136016.XA CN201811136016A CN109053085A CN 109053085 A CN109053085 A CN 109053085A CN 201811136016 A CN201811136016 A CN 201811136016A CN 109053085 A CN109053085 A CN 109053085A
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- Prior art keywords
- regeneration concrete
- concrete
- additive
- regeneration
- stirred
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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
Abstract
The invention discloses a kind of regeneration concretes, are made of the raw material that following parts by weight match:
Description
Technical field
The present invention relates to recycled concrete field, specially a kind of regeneration concrete and preparation method thereof.
Background technique
With the fast development of Building Trade in China, the consumption of natural sand stone is huge, not only causes excessively opening for resource
It adopts, and adverse effect is brought to local ecological environment.However currently, due to population rapid growth and Development of Cities
Cause key city construction industry to rapidly develop, there is old building to be pushed over dismounting daily, resulting building waste is more next
More (wherein discarded concrete more accounts for 34%), creating multilayer skyscraper is the needs for meeting people's air defense and building function, is adopted
With basement and piling strtucture, foundation pit concrete horizontal supporting beam and superfilled engineering pile crown are both needed to abolish, and there are also architectural engineerings
A large amount of concrete NDT test blocks, by discarded landfill.And building waste discards landfill not only waste of resource, pollution environment, destruction
Ecology can also occupy a large amount of soils.
The Industry Wastes such as the clinker that thermal power plant waste coal ash, zinc ore and antimony ore pyrometallurgy of zinc, antimony regulus generate
Slag is largely stacked, and is caused land resource occupied, is seriously polluted environment.Flyash is made into mixing for mortar or concrete in the prior art
And material, adding coal ash replaces part of cement or fine aggregate in concrete, can not only reduce cost, and improve concrete
The workability of mix；Enhance the pumpability of concrete；Reduce the heat of hydration, thermal energy dilatancy；Improve concrete impervious ability；Increase
Add the modified of concrete.With natural resources shortage and it is increasingly depleted, building waste is handled, workable for generation
Recycled aggregate meets the requirement of green circulation economy development, for this purpose, it is proposed that a kind of regeneration concrete and preparation method thereof.
Summary of the invention
The purpose of the present invention is to provide a kind of regeneration concretes and preparation method thereof, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of regeneration concrete is made of the raw material that following parts by weight match:
Preferably, the cement is the cement of sincerity P.O42.5 model.
Preferably, the flyash selects China Resources power plant level-one ash, and the fineness of flyash is 10.7%.
Preferably, the fine aggregate is river sand, and fineness modulus 2.6, clay content 1.5%, clod content is
0.2%.
Preferably, the coarse aggregate is the mixture of natural rubble and discarded concrete, and natural rubble and discarded coagulation
For the mixing match of soil between 4-0, the partial size of the natural rubble is 5-25mm continuous grading, clay content 0.8%, clod
Content is 0.2%；The partial size of the discarded concrete is 16-25mm continuous grading.
Preferably, the additive is high-efficiency water-reducing agent of poly-carboxylic acid.
A kind of preparation method of regeneration concrete, comprising the following steps:
S1, cement, flyash, fine aggregate, coarse aggregate are sequentially added be stirred into agitator tank be mixed to get it is dry-mixed
Material；
S2, it takes part water to be added into additive, stirs evenly, obtain dilution additive；
S3, remaining water is added in the dry blend mixed in step S1, is stirred, while agitating by step
Additive after diluting in S2 is added thereto, and is sufficiently stirred, obtains regeneration concrete.
Preferably, it is 10-20min that the time is stirred in the step S1.
Compared with prior art, the beneficial effects of the present invention are: regeneration concrete produced by the present invention, utilizes construction waste
The flyash etc. that object and power plant discard is used as raw material, can effectively deal with the waste that production generates, and realizes that waste utilization is regenerated
The features such as purpose reduces production cost, and stress performance is good, meets the requirement of bearing capacity, environmentally protective, environmental-friendly,
So the present invention effectively overcomes the various shortcoming of the prior art and has high industrial utility value, there is significant effect
With progress outstanding.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
The present invention provides a kind of technical solution:
Embodiment 1
A kind of regeneration concrete is made of the raw material that following parts by weight match:
Cement is the cement of sincerity P.O42.5 model；Flyash selects China Resources power plant level-one ash, and the fineness of flyash is
10.7%；Fine aggregate is river sand, and fineness modulus 2.6, clay content 1.5%, clod content is 0.2%；Coarse aggregate is day
The mixture of right rubble and discarded concrete, and the mixing match of natural rubble and discarded concrete is between 4-0, natural rubble
Partial size be 5-25mm continuous grading, clay content 0.8%, clod content be 0.2%；The partial size of discarded concrete is 16-
25mm continuous grading；Additive is high-efficiency water-reducing agent of poly-carboxylic acid.
A kind of preparation method of regeneration concrete, comprising the following steps:
S1, cement, flyash, fine aggregate, coarse aggregate are sequentially added be stirred into agitator tank be mixed to get it is dry-mixed
Material, being stirred the time is 10min；
S2, it takes part water to be added into additive, stirs evenly, obtain dilution additive；
S3, remaining water is added in the dry blend mixed in step S1, is stirred, while agitating by step
Additive after diluting in S2 is added thereto, and is sufficiently stirred, obtains regeneration concrete.
Embodiment 2
A kind of regeneration concrete is made of the raw material that following parts by weight match:
Cement is the cement of sincerity P.O42.5 model；Flyash selects China Resources power plant level-one ash, and the fineness of flyash is
10.7%；Fine aggregate is river sand, and fineness modulus 2.6, clay content 1.5%, clod content is 0.2%；Coarse aggregate is day
The mixture of right rubble and discarded concrete, and the mixing match of natural rubble and discarded concrete is between 4-0, natural rubble
Partial size be 5-25mm continuous grading, clay content 0.8%, clod content be 0.2%；The partial size of discarded concrete is 16-
25mm continuous grading；Additive is high-efficiency water-reducing agent of poly-carboxylic acid.
A kind of preparation method of regeneration concrete, comprising the following steps:
S1, cement, flyash, fine aggregate, coarse aggregate are sequentially added be stirred into agitator tank be mixed to get it is dry-mixed
Material, being stirred the time is 15min；
S2, it takes part water to be added into additive, stirs evenly, obtain dilution additive；
S3, remaining water is added in the dry blend mixed in step S1, is stirred, while agitating by step
Additive after diluting in S2 is added thereto, and is sufficiently stirred, obtains regeneration concrete.
Embodiment 3
A kind of regeneration concrete is made of the raw material that following parts by weight match:
Cement is the cement of sincerity P.O42.5 model；Flyash selects China Resources power plant level-one ash, and the fineness of flyash is
10.7%；Fine aggregate is river sand, and fineness modulus 2.6, clay content 1.5%, clod content is 0.2%；Coarse aggregate is day
The mixture of right rubble and discarded concrete, and the mixing match of natural rubble and discarded concrete is between 4-0, natural rubble
Partial size be 5-25mm continuous grading, clay content 0.8%, clod content be 0.2%；The partial size of discarded concrete is 16-
25mm continuous grading；Additive is high-efficiency water-reducing agent of poly-carboxylic acid.
A kind of preparation method of regeneration concrete, comprising the following steps:
S1, cement, flyash, fine aggregate, coarse aggregate are sequentially added be stirred into agitator tank be mixed to get it is dry-mixed
Material, being stirred the time is 20min；
S2, it takes part water to be added into additive, stirs evenly, obtain dilution additive；
S3, remaining water is added in the dry blend mixed in step S1, is stirred, while agitating by step
Additive after diluting in S2 is added thereto, and is sufficiently stirred, obtains regeneration concrete.
For embodiment beneficial effects of the present invention, following experiment is made:
Experiment one:
Concrete made from the proportion of embodiment 1, embodiment 2 and embodiment 3 is poured into the template of identical size,
In, the ratio of natural rubble and discarded concrete unanimously keeps 3:2 in coarse aggregate, takes out demoulding to concrete setting, room temperature is normal
(20 ± 2 DEG C of temperature, relative humidity conserves 28 days not less than 95%), respectively at the 7th day and the 28th under the conditions of pressure standard curing
It detects its intensity, before pouring into template, carries out slump detection to concrete made from each embodiment, according to
The standard of GB/T50081-2002 carries out mechanical performance of concrete test method and is detected, and obtains as shown in table 1 below:
Table 1
| Slump (mm) | 7th day intensity (MPa) | 28th day intensity (MPa) | |
| Embodiment 1 | 142 | 30.1 | 36.2 |
| Embodiment 2 | 135 | 32.5 | 38.5 |
| Embodiment 3 | 149 | 29.7 | 35.2 |
From experimental data it is found that according in coarse aggregate made from the ratio of natural rubble and discarded concrete 3:2, embodiment
2 proportion, the intensity in each period are superior to embodiment 1 and embodiment 2, and the compression strength for detecting each embodiment concrete is equal
Greater than 29MPa, reach good load bearing effect, therefore, discarded concrete can be very good recycling and reusing, energy conservation and environmental protection,
Be conducive to the implementation of sustainable development policy, there is significant effect and progress outstanding.
Experiment two:
From experiment one it is found that it is obtained in the coarse aggregate made from the ratio of natural rubble and discarded concrete 3:2
Data, when changing the ratio of natural rubble and discarded concrete in coarse aggregate, compression strength is different again, therefore, I
Change the ratio of natural rubble and discarded concrete in coarse aggregate and come made from coarse aggregate made from testing inspection different ratio
The compression strength of concrete selects the proportioning test of embodiment 2, except the proportion of natural rubble and discarded concrete is not in coarse aggregate
Together, the gross weight of coarse aggregate is consistent with the weight of remaining substance, is obtained as shown in table 2 below.
Table 2
| Natural rubble/discarded concrete | 7th day intensity (MPa) | 28th day intensity (MPa) |
| 4:1 | 35.2 | 42.7 |
| 3:2 | 32.5 | 38.5 |
| 2:3 | 29.1 | 35.2 |
| It is all discarded concrete | 25.3 | 30.2 |
As shown in Table 2, with the ratio of natural rubble and discarded concrete reduce when, obtained by regeneration concrete it is each
The intensity in a period gradually reduces, and therefore, when making regeneration concrete, for the quality for guaranteeing regeneration concrete, needs to be added
A certain proportion of natural rubble, to guarantee the compression strength of regeneration concrete.
In conclusion regeneration concrete produced by the present invention, is made using the discarded flyash etc. of building castoff and power plant
For raw material, the waste that production generates can effectively deal with, realize the regenerated purpose of waste utilization, reduce production cost, stress
The features such as performance is good, meets the requirement of bearing capacity, environmentally protective, environmental-friendly, so, the present invention effectively overcomes existing skill
The various shortcoming of art and have high industrial utility value, have significant effect and progress outstanding.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of regeneration concrete, which is characterized in that be made of the raw material that following parts by weight match:
2. a kind of regeneration concrete according to claim 1, which is characterized in that the cement is sincerity P.O42.5 model
Cement.
3. a kind of regeneration concrete according to claim 1, which is characterized in that the flyash selects China Resources power plant level-one
Ash, the fineness of flyash are 10.7%.
4. a kind of regeneration concrete according to claim 1, which is characterized in that the fine aggregate is river sand, fineness mould
Number is 2.6, clay content 1.5%, and clod content is 0.2%.
5. a kind of regeneration concrete according to claim 1, which is characterized in that the coarse aggregate is natural rubble and discards
The mixture of concrete, and the mixing match of natural rubble and discarded concrete, between 4-0, the partial size of the natural rubble is
5-25mm continuous grading, clay content 0.8%, clod content are 0.2%；The partial size of the discarded concrete is 16-25mm
Continuous grading.
6. a kind of regeneration concrete according to claim 1, which is characterized in that the additive is the efficient diminishing of polycarboxylic acids
Agent.
7. a kind of preparation method of the regeneration concrete as described in any one of claim 1-6, which is characterized in that including with
Lower step:
S1, it cement, flyash, fine aggregate, coarse aggregate is sequentially added to be stirred into agitator tank is mixed to get dry blend；
S2, it takes part water to be added into additive, stirs evenly, obtain dilution additive；
S3, remaining water is added in the dry blend mixed in step S1, is stirred, it while agitating will be in step S2
Additive after dilution is added thereto, and is sufficiently stirred, and regeneration concrete is obtained.
8. a kind of preparation method of regeneration concrete according to claim 7, which is characterized in that stirred in the step S1
Incorporation time is 10-20min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811136016.XA CN109053085A (en) | 2018-09-28 | 2018-09-28 | A kind of regeneration concrete and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811136016.XA CN109053085A (en) | 2018-09-28 | 2018-09-28 | A kind of regeneration concrete and preparation method thereof |
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| Publication Number | Publication Date |
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| CN109053085A true CN109053085A (en) | 2018-12-21 |
Family
ID=64766492
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| CN201811136016.XA Pending CN109053085A (en) | 2018-09-28 | 2018-09-28 | A kind of regeneration concrete and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110059334A (en) * | 2019-01-10 | 2019-07-26 | 宁夏大学 | A method of concrete is prepared using coal ash instead fine aggregate |
| CN114853393A (en) * | 2022-03-24 | 2022-08-05 | 徐州工润建筑科技有限公司 | Preparation method of anti-cracking concrete |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2407440A1 (en) * | 2010-07-16 | 2012-01-18 | Recoval Belgium | Method for recycling waste water from a stainless steel slag treatment process |
| CN103936369A (en) * | 2014-04-18 | 2014-07-23 | 张家港江苏科技大学产业技术研究院 | Grade-C30 single-particle regenerated self-compaction concrete and preparation method thereof |
| CN105367004A (en) * | 2015-11-27 | 2016-03-02 | 山西四建集团有限公司 | C30 durable recycled shaping aggregate concrete prepared from construction wastes and preparation method |
| CN106007556A (en) * | 2016-05-13 | 2016-10-12 | 广州大学 | Pumpable high-strength recycled concrete and preparation technology thereof |
-
2018
- 2018-09-28 CN CN201811136016.XA patent/CN109053085A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2407440A1 (en) * | 2010-07-16 | 2012-01-18 | Recoval Belgium | Method for recycling waste water from a stainless steel slag treatment process |
| CN103936369A (en) * | 2014-04-18 | 2014-07-23 | 张家港江苏科技大学产业技术研究院 | Grade-C30 single-particle regenerated self-compaction concrete and preparation method thereof |
| CN105367004A (en) * | 2015-11-27 | 2016-03-02 | 山西四建集团有限公司 | C30 durable recycled shaping aggregate concrete prepared from construction wastes and preparation method |
| CN106007556A (en) * | 2016-05-13 | 2016-10-12 | 广州大学 | Pumpable high-strength recycled concrete and preparation technology thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110059334A (en) * | 2019-01-10 | 2019-07-26 | 宁夏大学 | A method of concrete is prepared using coal ash instead fine aggregate |
| CN114853393A (en) * | 2022-03-24 | 2022-08-05 | 徐州工润建筑科技有限公司 | Preparation method of anti-cracking concrete |
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Application publication date: 20181221 |
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