CN109665772A - A kind of pervious concrete and preparation method thereof for mixing recycled concrete block brick aggregate - Google Patents
A kind of pervious concrete and preparation method thereof for mixing recycled concrete block brick aggregate Download PDFInfo
- Publication number
- CN109665772A CN109665772A CN201811540583.1A CN201811540583A CN109665772A CN 109665772 A CN109665772 A CN 109665772A CN 201811540583 A CN201811540583 A CN 201811540583A CN 109665772 A CN109665772 A CN 109665772A
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- China
- Prior art keywords
- concrete
- block brick
- aggregate
- pervious
- concrete block
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/003—Pressing by means acting upon the material via flexible mould wall parts, e.g. by means of inflatable cores, isostatic presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/003—Methods for mixing
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
-
- 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
- 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 pervious concretes and preparation method thereof for mixing recycled concrete block brick aggregate, the limestone aggregate in pervious concrete is replaced using recycled concrete block brick aggregate, recycled concrete block brick grinding screen is selected suitably sized, and mixed with portland cement, super plasticizer and natural limestone aggregate etc., preparation meets the pervious concrete of engine request.The pervious concrete is integrated with the functional advantage of regeneration concrete and pervious concrete, the sharp increase of existing building waste in practice is only able to solve to environment, resource bring items problem, concrete building bricks material secondary can also be utilized, turn waste into wealth, preparation meets the porous pavement of actual requirement.The pervious concrete anti-pressure ability with higher and water permeable ability being prepared by this method can sufficiently meet the anti-pressure ability requirement of the porous pavement even highway porous pavement in existing city and the water permeability requirement of most porous pavements.
Description
Technical field
The invention belongs to construction material preparation technical field, more particularly to a kind of recycled concrete block brick aggregate of mixing
Pervious concrete and preparation method thereof.
Background technique
China begins one's study pervious concrete in last century end, and pervious concrete is a kind of air-and water-permeable, sqouynd absorption lowering noise
There is interconnected macroscopic void in 15%-35%, there is certain water permeability in ecological architectural material, interior porosity.
Pervious concrete replaces natural aggregate using part or all of recycled aggregate, can save ore resource to a certain extent, but right
Its mechanical property has certain bad effect, generally takes and adds fine aggregate, modification regeneration coarse aggregate or admixture reinforcing agent
The methods of improve.Recycled aggregate pervious concrete is a kind of environment-friendly type, nodal wood type construction material, meets China's previous cycle warp
The growth requirement of Ji and environmental protection, recycled aggregate pervious concrete are to prepare macrovoid using the aggregate of discarded concrete production
Eco-concrete with certain pervious function.Recycled aggregate pervious concrete takes full advantage of regeneration concrete and permeable coagulation
The functionality advantage of soil, can be turned waste into wealth using recycled aggregate, reduce refuse disposal expense, and energy-saving and emission-reduction reduce environmental pollution.
With the quickening of China's industrialization construction and Process of Urbanization Construction process, concrete is most widely used at present, use
One of huge construction material is measured, while building waste pollution is also got worse.But the building waste rate of recovery in China is less than one
At to environment generation significant impact.Recycled aggregate pervious concrete increases the use approach of the high added value of discarded concrete,
Cost is reduced, while substantially increasing waste aggregates utilization rate, to reduce environmental pollution.Currently, utilizing regeneration concrete bone
The technology that material prepares pervious concrete is not mature enough, and it is not up to standard that the pervious concrete prepared will appear intensity, water penetration
Can be poor the problems such as.
Although having had researcher to make recycled aggregate so far prepares pervious concrete, application No. is
The Chinese patent of CN2016108418861 discloses a kind of based on the durable pervious concrete of multi-stage regenerable aggregate and its preparation side
Method, the recycled aggregate in the pervious concrete are that building waste discards brick, discarded concrete and industrial refuse slag etc., still
A kind of recycled aggregate is not recycled concrete block brick aggregate；Application No. is the Chinese patent of CN2017103371011 public affairs
A kind of preparation method of regenerative pervious concrete is opened, the regenerative pervious concrete of preparation is mixed with discarded oyster shell, gluconic acid
The non-common engineering waste material such as sodium and sodium metasilicate, limitation is larger, makes technological knowledge popular more difficult.
Summary of the invention
The purpose of the present invention is lower for pervious concrete intensity in the prior art, the problems such as water permeability is poor, provide
A kind of pervious concrete and preparation method thereof that mixing recycled concrete block brick aggregate, this method are built using regeneration concrete
Block brick aggregate replace pervious concrete in limestone aggregate, recycled concrete block brick grinding screen is selected it is suitably sized,
By process, preparation meets the pervious concrete of engine request.
The present invention is achieved by the following technical solutions:
A kind of pervious concrete for mixing recycled concrete block brick aggregate, the raw material are calculated as by the parts by weight under unit volume:
Natural limestone aggregate 720-1150kg/m3, recycled concrete block brick powder 430-720kg/m3, portland cement 280-
350kg/m3, super plasticizer 2.0-3.0kg/m3, water 60-90kg/m3。
The technical solution that the present invention further solves is that the raw material is calculated as by the parts by weight under unit volume: natural stone
Lime stone aggregate 861kg/m3, recycled concrete block brick powder 574kg/m3, portland cement 320kg/m3, super plasticizer 2.5kg/
m3, water 75kg/m3。
The technical solution that the present invention further solves is that the recycled concrete block brick powder is passed through by concrete building bricks
It crosses and crushes and the partial size that sieves is the rubble shape material of 5-10mm, fineness modulus 5.5, density is 1200 kg/m3。
Wherein, the recycled concrete block brick is made of low intensive dry powder and mortar, since the scale of construction is big, is widely used more than source etc.
Into renewable building material, compared to building clay brick, recycled concrete block brick has higher intensity and anti-seismic performance.
The technical solution that the present invention further solves is, the portland cement be marked as 42.5,52.5,52.5R,
Any one of 62.5 or 62.5R.
The technical solution that the present invention further solves is that the super plasticizer is polycarboxylate series super plasticizer F-1008.
The present invention also further protects a kind of pervious concrete for mixing recycled concrete block brick aggregate described above
Preparation method specifically comprises the following steps:
(1) the rubble shape material for being first 5-10mm by the partial size for crushing and sieving by recycled concrete block brick；
(2) in concrete mixer, first portland cement and water is mixed and stir 300s, then by natural limestone
Aggregate, recycled concrete block brick aggregate and super plasticizer are added in concrete mixer together and are mixed again
150-200s；
(3) to all material be mixed after, the mixture that step (2) obtains is poured into mold, using static pressure at
Type mode persistently presses 5-10s under the pressure of 50-80kN, and the pervious concrete is prepared.
A kind of application of the above-mentioned pervious concrete for mixing recycled concrete block brick aggregate in concrete road surface is laid with,
The concrete road surface is formed using cal rolling, and the road roller of 6-8t is selected persistently to press 5-10s, completes pervious concrete road pavement
The laying in face.
The invention has the benefit that
A kind of pervious concrete and preparation method thereof for mixing recycled concrete block brick aggregate of the present invention utilizes regeneration
Concrete building bricks aggregate replaces the limestone aggregate in pervious concrete, and recycled concrete block brick grinding screen is selected properly
Size, by process, preparation meets the pervious concrete of engine request.This method can not only solve it is existing in practice
The sharp increase of building waste is to environment, resource bring items problem, additionally it is possible to concrete building bricks material secondary utilized,
Turn waste into wealth, preparation meets the porous pavement of actual requirement.The pervious concrete being prepared by this method is with higher anti-
Pressure energy power, the compression strength measured are 15.0-17.0MPa, can sufficiently meet porous pavement in existing city even
The anti-pressure ability requirement of highway porous pavement；The pervious concrete being prepared into simultaneously by this method is with higher permeable
Ability, the porosity for measuring test block is 20% or so, and coefficient of permeability can satisfy the saturating of most of porous pavement close to 8.0mm/s
Water performance requirement.
Specific embodiment
Summary of the invention of the invention is further described below with reference to embodiment.
Embodiment 1
A kind of pervious concrete for mixing recycled concrete block brick aggregate, the raw material press unit volume (m3) under parts by weight meter
Are as follows: 892 kg/m of natural limestone aggregate3, 546 kg/m of recycled concrete block brick powder3, 320 kg/m of portland cement3, it is super
2.5 kg/m of plasticiser3, 75 kg/m of water3。
Wherein, the recycled concrete block brick powder is by concrete building bricks by crushing and the partial size that sieves exists
The rubble shape material of 5mm, fineness modulus 5.5, density are 1200 kg/m3；The portland cement is selected marked as 42.5
Portland cement；The super plasticizer model novel sodium polycarboxylate series super plasticizer F-1008.
Specific preparation process are as follows: the partial size that recycled concrete block brick process is crushed and sieved first is 5mm's
Rubble shape part；Then in concrete mixer, portland cement and water is mixed and stir 300s, then by natural stone
Lime stone aggregate, recycled concrete block brick aggregate and super plasticizer are added to together in concrete mixer and mixing is stirred again
Mix 180s；After all material is mixed, mixture is poured into 100mm × 100mm × 100mm mold, is used
Hydrostatic profile mode, persistently press 5s under the pressure of 50kN, and preparation is completed to obtain the pervious concrete.
Through detecting, pervious concrete compression strength manufactured in the present embodiment is 16.2MPa, porosity 20.8%, permeable system
Number is 7.8mm/s.
The pervious concrete of above-mentioned preparation is applied to the laying of concrete road surface, is selected using cal rolling molding mode
The road roller of 6t persistently presses 5s that the laying on road surface can be completed.
Embodiment 2
A kind of pervious concrete for mixing recycled concrete block brick aggregate, the raw material press unit volume (m3) under parts by weight meter
Are as follows: natural limestone aggregate 861kg/m3, 574 kg/m of recycled concrete block brick powder3, 320 kg/m of portland cement3, super modeling
2.5 kg/m of agent3, 75 kg/m of water3。
Wherein, the recycled concrete block brick powder is by concrete building bricks by crushing and the partial size that sieves exists
The rubble shape material of 8mm, fineness modulus 5.5, density are 1200 kg/m3；The portland cement select marked as
52.5R portland cement；The super plasticizer model novel sodium polycarboxylate series super plasticizer F-1008.
Specific preparation process are as follows: the partial size that recycled concrete block brick process is crushed and sieved first is 8mm's
Rubble shape part；Then in concrete mixer, portland cement and water is mixed and stir 300s, then by natural stone
Lime stone aggregate, recycled concrete block brick aggregate and super plasticizer are added to together in concrete mixer and mixing is stirred again
Mix 160s；After all material is mixed, mixture is poured into 100mm × 100mm × 100mm mold, is used
Hydrostatic profile mode, persistently press 5s under the pressure of 70kN, and preparation is completed to obtain the pervious concrete.
Through detecting, pervious concrete compression strength manufactured in the present embodiment is 17.0MPa, porosity 20.3%, permeable system
Number is 8.1mm/s.
The pervious concrete of above-mentioned preparation is applied to the laying of concrete road surface, is selected using cal rolling molding mode
The road roller of 7t persistently presses 8s that the laying on road surface can be completed.
Embodiment 3
A kind of pervious concrete for mixing recycled concrete block brick aggregate, the raw material press unit volume (m3) under parts by weight meter
Are as follows: natural limestone aggregate 935kg/m3, 503 kg/m of recycled concrete block brick powder3, 320 kg/m of portland cement3, super modeling
2.5 kg/m of agent3, 75 kg/m of water3。
Wherein, the recycled concrete block brick powder is by concrete building bricks by crushing and the partial size that sieves exists
The rubble shape material of 10mm, fineness modulus 5.5, density are 1200 kg/m3；The portland cement select marked as
62.5 portland cements；The super plasticizer model novel sodium polycarboxylate series super plasticizer F-1008.
Specific preparation process are as follows: the partial size that recycled concrete block brick process is crushed and sieved first is 10mm's
Rubble shape part；Then in concrete mixer, portland cement and water is mixed and stir 300s, then by natural stone
Lime stone aggregate, recycled concrete block brick aggregate and super plasticizer are added to together in concrete mixer and mixing is stirred again
Mix 200s；After all material is mixed, mixture is poured into 100mm × 100mm × 100mm mold, is used
Hydrostatic profile mode, persistently press 5s under the pressure of 80kN, and preparation is completed to obtain the pervious concrete.
Through detecting, pervious concrete compression strength manufactured in the present embodiment is 17.5MPa, porosity 19.4%, permeable system
Number is 7.6mm/s.
The pervious concrete of above-mentioned preparation is applied to the laying of concrete road surface, is selected using cal rolling molding mode
The road roller of 8t persistently presses 10s that the laying on road surface can be completed.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection scope.
Claims (8)
1. a kind of pervious concrete for mixing recycled concrete block brick aggregate, it is characterised in that: the raw material is pressed under unit volume
Parts by weight be calculated as: natural limestone aggregate 720-1150kg/m3, recycled concrete block brick powder 430-720kg/m3, silicate
Cement 280-350kg/m3, super plasticizer 2.0-3.0kg/m3, water 60-90kg/m3。
2. a kind of pervious concrete for mixing recycled concrete block brick aggregate according to claim 1, it is characterised in that: institute
It states raw material to be calculated as by the parts by weight under unit volume: natural limestone aggregate 861kg/m3, recycled concrete block brick powder
574kg/m3, portland cement 320kg/m3, super plasticizer 2.5kg/m3, water 75kg/m3。
3. a kind of pervious concrete for mixing recycled concrete block brick aggregate according to claim 1 or 2, feature exist
In: the recycled concrete block brick powder is that the partial size for being crushed and being sieved by concrete building bricks process is the broken of 5-10mm
Stone shape material, fineness modulus 5.5, density are 1200 kg/m3。
4. a kind of pervious concrete for mixing recycled concrete block brick aggregate according to claim 1 or 2, feature exist
In: the portland cement be marked as 42.5,52.5, any one of 52.5R, 62.5 or 62.5R.
5. a kind of pervious concrete for mixing recycled concrete block brick aggregate according to claim 1 or 2, feature exist
In: the super plasticizer is polycarboxylate series super plasticizer F-1008.
6. such as the preparation method of the described in any item pervious concretes of claims 1 or 2, which comprises the steps of:
(1) the rubble shape material for being first 5-10mm by the partial size for crushing and sieving by recycled concrete block brick；
(2) in concrete mixer, first portland cement and water is mixed and stir 300s, then by natural limestone
Aggregate, recycled concrete block brick aggregate and super plasticizer are added in concrete mixer together and are mixed again
150-200s；
(3) to all material be mixed after, the mixture that step (2) obtains is poured into mold, using static pressure at
Type mode persistently presses 5-10s under the pressure of 50-80kN, and the pervious concrete is prepared.
7. a kind of pervious concrete for mixing recycled concrete block brick aggregate described in claim 1 is in concrete road surface is laid with
Application.
8. application according to claim 7, it is characterised in that: the concrete road surface is formed using cal rolling, specifically
Are as follows: select the road roller of 6-8t persistently to press 5-10s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811540583.1A CN109665772A (en) | 2018-12-17 | 2018-12-17 | A kind of pervious concrete and preparation method thereof for mixing recycled concrete block brick aggregate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811540583.1A CN109665772A (en) | 2018-12-17 | 2018-12-17 | A kind of pervious concrete and preparation method thereof for mixing recycled concrete block brick aggregate |
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| CN109665772A true CN109665772A (en) | 2019-04-23 |
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| CN201811540583.1A Pending CN109665772A (en) | 2018-12-17 | 2018-12-17 | A kind of pervious concrete and preparation method thereof for mixing recycled concrete block brick aggregate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113277793A (en) * | 2021-05-27 | 2021-08-20 | 金华职业技术学院 | Method for manufacturing set cement by using regenerated micro powder |
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Application publication date: 20190423 |