CN108793896A - A kind of pervious concrete and preparation method thereof - Google Patents
A kind of pervious concrete and preparation method thereof Download PDFInfo
- Publication number
- CN108793896A CN108793896A CN201810986502.4A CN201810986502A CN108793896A CN 108793896 A CN108793896 A CN 108793896A CN 201810986502 A CN201810986502 A CN 201810986502A CN 108793896 A CN108793896 A CN 108793896A
- Authority
- CN
- China
- Prior art keywords
- coarse aggregate
- pervious concrete
- building castoff
- slag waste
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
- C04B2111/40—Porous or lightweight materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The present invention provides a kind of pervious concrete and preparation method thereof, the pervious concrete includes the following component of weight percent meter：The cement of 15%-25%, the mineral admixture of 1%-3%, the building castoff coarse aggregate of 65%-75%, the slag waste coarse aggregate of 6%-13%, the glass fibre of 5-10%, the water-reducing agent of 0.10-1.10%, the water of 4%-8%, the pervious concrete can not only ensure that precipitation permeates the ground in time, but also can effectively utilize building castoff and slag waste, realize the secondary use of waste.
Description
Technical field
The present invention relates to building material fields, and in particular to a kind of pervious concrete and preparation method thereof.
Background technology
Urban pavement uses pitch, normal concrete, masonry surfacing more at present, and this road surface can hardly be permeable,
So that rainwater can not effectively in depth under, recharge groundwater, in recent years, the urban waterlogging phenomenon caused by heavy rain are shown in not repeatly
It is fresh, bring great inconvenience to the production and living of people.
In addition, with the fast development of China's economic society, ur- banization speed is accelerated, thus generates a large amount of construction waste
Object arbitrarily abandons and stacks, can not only influence city image, but also cause to provide if these building wastes cannot utilize well
Source wastes and environmental pollution.Therefore, looking for can make full use of the effective way of building castoff extremely urgent.Simultaneously with this, steel
The problems such as slag waste that ironworks generates, which equally exists, arbitrarily to be piled up, land occupation, pollution environment.
The present invention proposes a kind of pervious concrete prepared using building castoff and slag waste, can not only ensure
Precipitation permeates the ground in time, and can effectively utilize building castoff and slag waste, realizes the secondary of waste
It utilizes.
Invention content
The present invention provides a kind of pervious concrete prepared using building castoff and slag waste and its preparation sides
Method can not only ensure that precipitation permeates the ground in time, but also can effectively utilize building castoff and slag waste, realize
The secondary use of waste.
To achieve the above object, the technical solution adopted by the present invention is：
On the one hand, the present invention provides a kind of pervious concrete, the pervious concrete include weight percent meter as
Lower component：
The cement of 15%-25%；
The mineral admixture of 1%-3%；
The building castoff coarse aggregate of 65%-75%；
The slag waste coarse aggregate of 6%-13%；
The glass fibre of 5-10%；
The water-reducing agent of 0.10-1.10%；
The water of 4%-8%.
Further, the building castoff coarse aggregate accounting that grain size is 7-12mm in the building castoff coarse aggregate
For 91-95%, the building castoff coarse aggregate accounting that grain size is 13-15mm is 5-9%.
Further, the slag waste coarse aggregate accounting that grain size is 7-12mm in the slag waste coarse aggregate
For 87-92%, the slag waste coarse aggregate accounting that grain size is 13-15mm is 8-13%.
Further, the water-reducing agent is one in naphthalene water reducer, poly carboxylic acid series water reducer or lignin water reducer
Kind.
Further, the mineral admixture is level-one flyash.
Further, the cement is the Portland cement of strength factor 42.5.
Further, the cement can also be the Portland cement of strength factor 52.5.
On the other hand, the present invention also provides a kind of method preparing the pervious concrete, include the following steps：
Building castoff and slag waste are crushed respectively, screening obtains the building castoff for meeting Particle size requirements
Coarse aggregate and the slag waste coarse aggregate；
By the building castoff coarse aggregate, the slag waste coarse aggregate, the cement, the mineral admixture and
The glass fibre is sufficiently mixed according to the weight percent in concrete mixer；
The water of the weight percent is added, is sufficiently stirred 10-15 minutes；
The water-reducing agent of the weight percent is added, is stirred well to uniformly mixed；
Go out tank up to the pervious concrete.
The beneficial effects of the present invention are：The pervious concrete is major ingredient system using building castoff and slag waste
Standby to form, preparation process flow is simple and convenient to operate, and can not only ensure that precipitation permeates the ground in time, but also can be effective
Using building castoff and slag waste, the secondary use of waste is realized.The porosity of the pervious concrete is 25-
30%, there is good permeable effect, while the glue combination effect of the glass fibre in the pervious concrete so that the permeable coagulation
Soil has certain compression strength, meets construction and application demand.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the step flow chart of the preparation method of pervious concrete of the present invention.
Specific implementation mode
Below by the description to each embodiment, specific embodiments of the present invention will be described in further detail.It is aobvious
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, the every other embodiment that those skilled in the art are obtained without making creative work belongs to this
Invent the range of protection.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
The present invention provides a kind of pervious concrete, the pervious concrete includes the following component of weight percent meter：
The cement of 15%-25%；
The mineral admixture of 1%-3%；
The building castoff coarse aggregate of 65%-75%；
The slag waste coarse aggregate of 6%-13%；
The glass fibre of 5-10%；
The water-reducing agent of 0.10-1.10%；
The water of 4%-8%.
Further, the building castoff coarse aggregate accounting that grain size is 7-12mm in the building castoff coarse aggregate
For 91-95%, the building castoff coarse aggregate accounting that grain size is 13-15mm is 5-9%.The present invention is rational by screening
The building castoff coarse aggregate of particle size range carries out proportioning mixing, and the effective and reasonable accumulation between particle may be implemented, and generates equal
Even hole, not only so that pervious concrete has good permeability rate, while the homogeneity of the pervious concrete structure has
The ability of pressure is born conducive to enhancing pervious concrete.
Further, the slag waste coarse aggregate accounting that grain size is 7-12mm in the slag waste coarse aggregate
For 87-92%, the slag waste coarse aggregate accounting that grain size is 13-15mm is 8-13%.The present invention is reasonable by screening
The slag gurry coarse aggregate of particle size range carry out proportioning mixing, the effective and reasonable accumulation between particle may be implemented, generate equal
Even hole, not only so that pervious concrete has good permeability rate, while the homogeneity of the pervious concrete structure has
The ability of pressure is born conducive to enhancing pervious concrete.
Further, the water-reducing agent is one in naphthalene water reducer, poly carboxylic acid series water reducer or lignin water reducer
Kind.
Further, the mineral admixture is level-one flyash.
Further, the cement is the Portland cement of strength factor 42.5.
Further, the cement can also be the Portland cement of strength factor 52.5.
Such as Fig. 1, the present invention also provides a kind of methods preparing the pervious concrete, include the following steps：
Building castoff and slag waste are crushed respectively, screening obtains the building castoff for meeting Particle size requirements
Coarse aggregate and the slag waste coarse aggregate.
By the building castoff coarse aggregate, the slag waste coarse aggregate, the cement, the mineral admixture and
The glass fibre is sufficiently mixed according to the weight percent in concrete mixer, and glass fibre herein plays glue connection
Effect, can increase the intensity of the pervious concrete.
The water of the weight percent is added, is sufficiently stirred 10-15 minutes.
The water-reducing agent of the weight percent is added, is stirred well to uniformly mixed.
Go out tank up to the pervious concrete.
In order to more understand the present invention, several specific embodiments are set forth below and are described in detail, specific embodiment is not answered
Limitation as right of the present invention：
Embodiment 1
A kind of pervious concrete and preparation method thereof using building castoff and slag waste, steps are as follows：First
Construction waste and slag waste are crushed respectively, screening obtains building castoff coarse aggregate, and wherein particle diameter distribution is in 7-12mm
Building castoff coarse aggregate account for 92%, particle diameter distribution accounts for 8% in the building castoff coarse aggregate of 13-15mm, and the building is useless
Gurry coarse aggregate accounting is 70%；Slag waste coarse aggregate accounting is 10%, and wherein particle diameter distribution is useless in the slag of 7-12mm
Gurry coarse aggregate accounts for 90%, and slag waste coarse aggregate of the particle diameter distribution in 13-15mm accounts for 10%；It filters out and meets Particle size requirements
The building castoff coarse aggregate and the slag waste coarse aggregate after, by the building castoff coarse aggregate, described
Slag waste coarse aggregate, the Portland cement of strength factor 42.5, the mineral admixture and 5% glass fibre
It is sufficiently mixed in concrete mixer；Water is added, is sufficiently stirred 10-15 minutes；The water-reducing agent is added, is stirred well to mixing
Uniformly；Go out tank up to the pervious concrete.The pervious concrete is laid to road surface, and according to its intensity of standard testing,
The performances such as coefficient of permeability.7d intensity is 13.6MPa, and 28d intensity is 25.4MPa, permeability coefficient 1.81cms-1, porosity
27%.
Embodiment 2
A kind of pervious concrete and preparation method thereof using building castoff and slag waste, steps are as follows：First
Construction waste and slag waste are crushed respectively, screening obtains building castoff coarse aggregate, and wherein particle diameter distribution is in 7-12mm
Building castoff coarse aggregate account for 95%, particle diameter distribution accounts for 5% in the building castoff coarse aggregate of 13-15mm, and the building is useless
Gurry coarse aggregate accounting is 65%；Slag waste coarse aggregate accounting is 15%, and wherein particle diameter distribution is useless in the slag of 7-12mm
Gurry coarse aggregate accounts for 92%, and slag waste coarse aggregate of the particle diameter distribution in 13-15mm accounts for 8%；It filters out and meets Particle size requirements
The building castoff coarse aggregate and the slag waste coarse aggregate after, by the building castoff coarse aggregate, described
Slag waste coarse aggregate, the Portland cement of strength factor 42.5, the mineral admixture and 7% glass fibre
It is sufficiently mixed in concrete mixer；Water is added, is sufficiently stirred 10-15 minutes；The water-reducing agent is added, is stirred well to mixing
Uniformly；Go out tank up to the pervious concrete.The pervious concrete is laid to road surface, and according to its intensity of standard testing,
The performances such as coefficient of permeability.7d intensity is 14.3MPa, and 28d intensity is 26.1MPa, permeability coefficient 1.67cms-1, porosity
24%.
Embodiment 3
A kind of pervious concrete and preparation method thereof using building castoff and slag waste, steps are as follows：First
Construction waste and slag waste are crushed respectively, screening obtains building castoff coarse aggregate, and wherein particle diameter distribution is in 7-12mm
Building castoff coarse aggregate account for 90%, particle diameter distribution accounts for 10% in the building castoff coarse aggregate of 13-15mm, and the building is useless
Gurry coarse aggregate accounting is 75%；Slag waste coarse aggregate accounting is 10%, and wherein particle diameter distribution is useless in the slag of 7-12mm
Gurry coarse aggregate accounts for 95%, and slag waste coarse aggregate of the particle diameter distribution in 13-15mm accounts for 5%；It filters out and meets Particle size requirements
The building castoff coarse aggregate and the slag waste coarse aggregate after, by the building castoff coarse aggregate, described
Slag waste coarse aggregate, the Portland cement of strength factor 52.5, the mineral admixture and 10% glass fibers
Dimension is sufficiently mixed in concrete mixer；Water is added, is sufficiently stirred 10-15 minutes；The water-reducing agent is added, is stirred well to mixed
It closes uniform；Go out tank up to the pervious concrete.The pervious concrete is laid to road surface, and it is strong according to standard testing
Degree, the performances such as coefficient of permeability.7d intensity is 23.6MPa, and 28d intensity is 35.2MPa, permeability coefficient 2.27cms-1, hole
Rate 29%.
The beneficial effects of the present invention are：The pervious concrete is major ingredient system using building castoff and slag waste
Standby to form, preparation process flow is simple and convenient to operate, and can not only ensure that precipitation permeates the ground in time, but also can be effective
Using building castoff and slag waste, the secondary use of waste is realized.The porosity of the pervious concrete is 25-
30%, there is good permeable effect, while the glue combination effect of the glass fibre in the pervious concrete so that the permeable coagulation
Soil has certain compression strength, meets construction and application demand.
The foregoing is merely some embodiments of the present invention, are not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of pervious concrete, which is characterized in that the pervious concrete includes the following component of weight percent meter：
The cement of 15%-25%；
The mineral admixture of 1%-3%；
The building castoff coarse aggregate of 65%-75%；
The slag waste coarse aggregate of 6%-13%；
The glass fibre of 5-10%；
The water-reducing agent of 0.10-1.10%；
The water of 4%-8%.
2. pervious concrete as described in claim 1, which is characterized in that grain size is 7- in the building castoff coarse aggregate
The building castoff coarse aggregate accounting of 12mm is 91-95%, and grain size is that the building castoff coarse aggregate of 13-15mm accounts for
Than for 5-9%.
3. pervious concrete as described in claim 1, which is characterized in that grain size is 7- in the slag waste coarse aggregate
The slag waste coarse aggregate accounting of 12mm is 87-92%, and grain size is that the slag waste coarse aggregate of 13-15mm accounts for
Than for 8-13%.
4. pervious concrete as described in claim 1, which is characterized in that the water-reducing agent is naphthalene water reducer, polycarboxylic-acid
One kind in water-reducing agent or lignin water reducer.
5. pervious concrete as described in claim 1, which is characterized in that the mineral admixture is level-one flyash.
6. pervious concrete as described in claim 1, which is characterized in that the cement is the common silicic acid of strength factor 42.5
Salt cement.
7. pervious concrete as described in claim 1, which is characterized in that the cement can also be the general of strength factor 52.5
Logical portland cement.
8. a kind of method for the pervious concrete preparing any one of claim 1-7, which is characterized in that including following step
Suddenly：
Building castoff and slag waste are crushed respectively, screening obtains the thick bone of the building castoff for meeting Particle size requirements
Material and the slag waste coarse aggregate；
By the building castoff coarse aggregate, the slag waste coarse aggregate, the cement, the mineral admixture and described
Glass fibre is sufficiently mixed according to the weight percent in concrete mixer；
The water of the weight percent is added, is sufficiently stirred 10-15 minutes；
The water-reducing agent of the weight percent is added, is stirred well to uniformly mixed；
Go out tank up to the pervious concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810986502.4A CN108793896A (en) | 2018-08-28 | 2018-08-28 | A kind of pervious concrete and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810986502.4A CN108793896A (en) | 2018-08-28 | 2018-08-28 | A kind of pervious concrete and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108793896A true CN108793896A (en) | 2018-11-13 |
Family
ID=64080986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810986502.4A Withdrawn CN108793896A (en) | 2018-08-28 | 2018-08-28 | A kind of pervious concrete and preparation method thereof |
Country Status (1)
| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437743A (en) * | 2018-12-04 | 2019-03-08 | 上海中冶环境工程科技有限公司 | A kind of converter slag pervious concrete and preparation method thereof |
| CN110845193A (en) * | 2019-11-11 | 2020-02-28 | 东南大学 | High-strength steel slag pervious concrete and indoor forming process thereof |
| CN112479636A (en) * | 2019-09-11 | 2021-03-12 | 交通运输部公路科学研究所 | Water purification type solid waste pervious concrete |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437743A (en) * | 2018-12-04 | 2019-03-08 | 上海中冶环境工程科技有限公司 | A kind of converter slag pervious concrete and preparation method thereof |
| CN112479636A (en) * | 2019-09-11 | 2021-03-12 | 交通运输部公路科学研究所 | Water purification type solid waste pervious concrete |
| CN110845193A (en) * | 2019-11-11 | 2020-02-28 | 东南大学 | High-strength steel slag pervious concrete and indoor forming process thereof |
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