CN107354838B - Unidirectional water permeable concrete structure and preparation method thereof - Google Patents
Unidirectional water permeable concrete structure and preparation method thereof Download PDFInfo
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- CN107354838B CN107354838B CN201710458048.0A CN201710458048A CN107354838B CN 107354838 B CN107354838 B CN 107354838B CN 201710458048 A CN201710458048 A CN 201710458048A CN 107354838 B CN107354838 B CN 107354838B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
- E01C11/226—Coherent pavings
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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
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
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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
- 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
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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
- 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
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
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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
- 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)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention provides a kind of Unidirectional water permeable concrete structures, it is made of the porous base course, Unidirectional water permeable layer and water-permeable filter layer that successively combine from the bottom up, water-permeable filter layer is made of the first pervious concrete doped with hydrophilic polymer, aggregate size≤0.63mm of first pervious concrete, and 30 megapascal of compression strength > of water-permeable filter layer, permeable hole aperture < 0.02mm, coefficient of permeability > 1.2mm/s；Unidirectional water permeable layer is made of the second pervious concrete doped with hydrophobic polymer, and second pervious concrete aggregate size≤1.25mm, 30 megapascal of compression strength > of Unidirectional water permeable layer, permeable hole aperture < 0.05mm, coefficient of permeability > 5mm/s；Porous base course is made of third pervious concrete, and the aggregate size of third pervious concrete is 5-15mm, and 40 megapascal of compression strength > of porous base course, permeable hole aperture < 1.0mm, coefficient of permeability > 10mm/s.
Description
Technical field
The invention belongs to building material technical field more particularly to a kind of Unidirectional water permeable concrete structure and its preparation sides
Method.
Background technique
With the continuous development of City Green ecodevelopment and sponge urban construction, the engineering demand amount of pervious concrete is got over
Come bigger.The pavement of existing full impregnated water-bound, including the base set gradually on roadbed and pervious concrete surface layer,
In, contain permeable hole in pervious concrete surface layer.However, existing porous pavement is held due to the permeable hole in pervious concrete surface layer
It is easily blocked by rubbish or dust, therefore after one phases-time of operation, the pervious function of permeable structure is lost, and rainwater can not permeate,
Various tool cleanings road surface pervious concrete aperture is needed nonetheless can not effectively to restore its pervious function.
Summary of the invention
The purpose of the present invention is to provide a kind of with Unidirectional water permeable performance, that coefficient of permeability is big, compression strength is high is unidirectional
Pervious concrete structure and preparation method thereof, it is intended to after solving one phases-time of existing Unidirectional water permeable concrete structure operation,
The pervious function of permeable structure is lost, the impermeable problem of rainwater.
The invention is realized in this way a kind of Unidirectional water permeable concrete structure, by the permeable base successively combined from the bottom up
Layer, Unidirectional water permeable layer and water-permeable filter layer composition, wherein the water-permeable filter layer is saturating by first doped with hydrophilic polymer
Water coagulation soil is made, aggregate size≤0.63mm of first pervious concrete, and the compression strength of the water-permeable filter layer
30 megapascal of >, permeable hole aperture < 0.02mm, coefficient of permeability > 1.2mm/s；The Unidirectional water permeable layer doped with hydrophobicity by gathering
The second pervious concrete for closing object is made, and aggregate size≤1.25mm of second pervious concrete, the Unidirectional water permeable
30 megapascal of compression strength > of layer, permeable hole aperture < 0.05mm, coefficient of permeability > 5mm/s；The porous base course is saturating by third
Water coagulation soil is made, and the aggregate size of the third pervious concrete is 5-15mm, and the compression strength > of the porous base course
40 megapascal, permeable hole aperture < 1.0mm, coefficient of permeability > 10mm/s.
And a kind of preparation method of above-mentioned Unidirectional water permeable concrete structure, comprising the following steps:
Step 1: each raw material component is weighed according to the match ratio of the water-permeable filter layer, by whole aggregates, fiber and 40%
The water of weight stirs 60~90 seconds in advance, is subsequently added into whole cement, stirs 60~90 seconds, and whole water-reducing agents are then added and remain
The water of 60% remaining weight is sufficiently stirred 90~120 seconds, is eventually adding hydrophilic polymer, stirs 30~60 seconds, obtains permeable
Filter layer concrete mix；
Step 2: according to the mix calculation each raw material component of the Unidirectional water permeable layer, first by whole aggregates and 40% weight
The water of amount stirs 60~90 seconds in advance, is subsequently added into whole cement, stirs 60~90 seconds, whole water-reducing agents and residue is then added
60% weight water, be sufficiently stirred 90~120 seconds, be eventually adding hydrophobic polymer, stir 30~60 seconds, obtain it is unidirectional thoroughly
Water coagulation soil mixture；
Step 3: according to the mix calculation each raw material component of the porous base course, first by whole aggregates and 40% weight
Water stir in advance 60~90 seconds, be subsequently added into whole cement, stir 60~90 seconds, whole aqueous epoxy resins are then added,
Stirring 30~60 seconds, is eventually adding the water of whole water-reducing agents and remaining 60% weight, is sufficiently stirred 90~120 seconds, obtains
Water-base concrete mix；
Step 4: the porous base course concrete mix that step 3 is obtained pours, 10 are vibrated with plate pulsator
~20 seconds, prepare porous base course；
Step 5: the Unidirectional water permeable layer concrete mixture that step 2 obtains to be cast in the porous base course of step 4 production
On, it is vibrated 10~20 seconds using plate pulsator；
Step 6: the water-permeable filter layer concrete mix that step 1 obtains to be cast in the Unidirectional water permeable of step 5 production
It on layer, is vibrated 30~50 seconds using plate pulsator, surface is closed flat, and overlay film conserves 3 days to obtain finished product.
Unidirectional water permeable concrete structure provided by the invention, by with specific aggregate partial size, permeable hole aperture and
Porous base course, Unidirectional water permeable layer and the water-permeable filter layer composition of coefficient of permeability.Wherein, the surface layer of Unidirectional water permeable concrete structure is
Water-permeable filter layer with hydrophilicity while water suction, can be achieved at the same time impurity rubbish filtering, effectively prevent
Water aperture is blocked by rubbish, dust.On this basis, the Unidirectional water permeable layer fast implements Unidirectional water permeable, and can effectively keep away
Exempt from reversed level of ground water is excessively high, be lauched in large area to earth's surface permeate the phenomenon that.The Unidirectional water permeable concrete that the present invention is supplied to
Structure has good Unidirectional water permeable, gas permeability and compression strength, greatly improves permeable operational efficiency, reduces engineering maintenance,
Meet the demand of green ecological development.Increase urban groundwater resource can be played using the Unidirectional water permeable concrete structure,
Urban climate is adjusted, the effect improved the ecological environment can be used for highway communication field.
The preparation method of Unidirectional water permeable concrete structure provided by the invention need to only be formed according to each layer composition of raw materials mixing
After mixture, successively it is poured, method is simply controllable, and thus obtained Unidirectional water permeable concrete structure, the list having had
To water penetration, gas permeability and compression strength, it is suitable for highway communication engineering construction.
Specific embodiment
In order to which technical problems, technical solutions and advantageous effects to be solved by the present invention are more clearly understood, below in conjunction with
Embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to explain
The present invention is not intended to limit the present invention.
The embodiment of the invention provides a kind of Unidirectional water permeable concrete structures, by the permeable base successively combined from the bottom up
Layer, Unidirectional water permeable layer and water-permeable filter layer composition, wherein the water-permeable filter layer is saturating by first doped with hydrophilic polymer
Water coagulation soil is made, aggregate size≤0.63mm of first pervious concrete, and the compression strength of the water-permeable filter layer
30 megapascal of >, permeable hole aperture < 0.02mm, coefficient of permeability > 1.2mm/s；The Unidirectional water permeable layer doped with hydrophobicity by gathering
The second pervious concrete for closing object is made, and aggregate size≤1.25mm of second pervious concrete, the Unidirectional water permeable
30 megapascal of compression strength > of layer, permeable hole aperture < 0.05mm, coefficient of permeability > 5mm/s；The porous base course is saturating by third
Water coagulation soil is made, and the aggregate size of the third pervious concrete is 5-15mm, and the compression strength > of the porous base course
40 megapascal, permeable hole aperture < 1.0mm, coefficient of permeability > 10mm/s.
Original pervious concrete structure is improved to water-permeable filter layer, Unidirectional water permeable layer and permeable matrix by the embodiment of the present invention
Layer structure solves gap by closure phenomenon by water-permeable filter layer, inhibits underground water is reverse osmosis to arrive surface by Unidirectional water permeable layer
Problem is effectively passed to soil resource for water is permeated by porous base course, returns groundwater resources.
Specifically, the porous base course, the aggregate size of Unidirectional water permeable layer and water-permeable filter layer, compression strength, permeable hole
Aperture, coefficient of permeability are different, to assign the Unidirectional water permeable concrete structure filtering spam, prevent blocking, is unidirectional saturating
The performance of water.Wherein, doped with hydrophilic polymer in the water-permeable filter layer, the hydrophilic polymer is made with wellability
With can effectively adsorb rainwater.The hydrophobic polymer adulterated in the Unidirectional water permeable layer does not have immersional wetting, in addition water
Gravity and Unidirectional water permeable layer aperture it is smaller, solve the capillary rise phenomenon of water, thus have Unidirectional water permeable effect,
It is possible to prevente effectively from reversed, level of ground water is excessively high, is lauched the phenomenon that permeating to earth's surface in large area, to assign concrete structure
Unidirectional water permeable performance.
Aggregate size≤0.63mm of first pervious concrete, and the compression strength > 30,000,000 of the water-permeable filter layer
Pa, permeable hole aperture < 0.02mm, coefficient of permeability > 1.2mm/s, can not only guarantee the intensity of first pervious concrete,
Moreover, suitable permeable hole aperture and coefficient of permeability, can have under the premise of efficient absorption rainwater in the water-permeable filter layer
Effect prevents rubbish, dust blocking permeable hole.Aggregate size≤1.25mm of second pervious concrete, the Unidirectional water permeable layer
30 megapascal of compression strength >, permeable hole aperture < 0.05mm, coefficient of permeability > 5mm/s, can not have to worry blocking before
It is efficiently permeable to put realization.The aggregate size of the third pervious concrete is 5-15mm, and the pressure resistance of the porous base course
Spend 40 megapascal of >, permeable hole aperture < 1.0mm, coefficient of permeability > 10mm/s.The embodiment of the present invention use specific layer structure, with
And each layer structure uses specific compression strength, permeable hole aperture and coefficient of permeability, so that the pervious concrete is not only
It can prevent from blocking, realize efficiently infiltration, and can be realized Unidirectional water permeable.Specifically, aggregate is in the case where tightly packed, quilt
Cementitious material is uniformly wrapped up and being bonded together, and flows out without more cement slurry, the porous structure piled up is formd after solidification,
Remaining gap becomes the hole of inside concrete connection, and aggregate size size influences permeable pore size, so setting is saturating
Aggregate size≤0.63mm of water filtering layer, aggregate size≤1.25mm of Unidirectional water permeable layer, the aggregate size of porous base course are
5-15mm.Permeable pore size directly affects coefficient of permeability size, since the permeable aperture of water-permeable filter layer need to be designed as being not easy
By the small-bore of the blockings such as rubbish, dust, design water-permeable filter layer coefficient of permeability is > 1.2mm/s, in order to smoothly pass rainwater
It is delivered to underground, Unidirectional water permeable layer coefficient of permeability is designed as > 5mm/s, and porous base course coefficient of permeability is designed as > 10mm/s.Unidirectionally
The coefficient of permeability of pervious concrete is successively increased from filter layer to porous base course, on the one hand smoothly can be transmitted to ground for rainwater
Under, on the other hand due to the gravity of pressure and water, underground water capillary rise phenomenon can be eliminated, to inhibit underground water anti-
It is seeped into earth's surface.
Preferably, the water-permeable filter layer includes the first pervious concrete raw material and hydrophilic polymer of following parts by weight
Powder:
And the water-cement ratio of first pervious concrete is 0.2~0.3.
There is above-mentioned preferred water-permeable filter layer compression strength to be greater than 30 megapascal, pore width less than 0.02mm, permeable system
Number is greater than the advantages of 1.2mm/s.
It is furthermore preferred that the water-permeable filter layer includes that the first pervious concrete raw material of following parts by weight and hydrophily are gathered
Close powder:
And the water-cement ratio of first pervious concrete is 0.22~0.28.
There is the preferred water-permeable filter layer compression strength to be greater than 33 megapascal, pore width is less than 0.02mm, permeable
Coefficient is greater than the advantages of 1.3mm/s.
As most preferred embodiment, the water-permeable filter layer includes the first pervious concrete raw material and the parent of following parts by weight
Polymerizable aqueous powder:
And the water-cement ratio of first pervious concrete is 0.25.
There is the preferred water-permeable filter layer compression strength to be greater than 35 megapascal, pore width is less than 0.02mm, permeable
The advantages of coefficient is greater than 1.3.
Wherein, the river sand of 0.06~0.63mm or Machine-made Sand are used as aggregate in the embodiment of the present invention；Strength grade is not small
With water the hydrated calcium silicate gel that hydration reaction generates occurs for the cement in 32.5, cementitious material effect (cement) admixture
Aggregate is bonded together；High-performance water reducing agent plays water-reduction, and each component controls water according to above-mentioned specific recipe ingredient
Glue ratio is 0.2~0.3, to obtain high-intensitive (30 megapascal of compression strength >), and is prevented under the premise of water suction is effectively ensured
The water-permeable filter layer of rubbish dust blocking.Organic fiber described in the embodiment of the present invention and the wood-fibred are mutual according to a certain percentage
Cooperation, not only can be improved the tensile strength of water-permeable filter layer, but also the water absorption rate of water-permeable filter layer can be improved.
Preferably, the vigorous consistency of dimension of second pervious concrete is 30~50 seconds.Particularly, the Unidirectional water permeable layer
The ratio of mud is 0.25~0.35, Unidirectional water permeable layer concrete integral working can be controlled at dimension vigorous consistency 30~50 seconds,
When Ruo Weibo consistency is smaller, slurry sinks, and blocks permeable hole, reduces Unidirectional water permeable layer concrete coefficient of permeability；Ruo Weibo is thick
It is inadequate that poly- property is sticked when spending larger, between aggregate, reduces Unidirectional water permeable layer concrete intensity.
Further, the water-permeable filter layer pours thickness≤10mm.Water-permeable filter layer master described in the embodiment of the present invention
It is permeable to play filtering, should not be too thick, if too thick, the intensity and coefficient of permeability of Unidirectional water permeable concrete structure can be reduced.
In the embodiment of the present invention, the content of the hydrophilic polymer can the intensity of combined influence water-permeable filter layer and permeable
Coefficient, therefore, content are unsuitable too high or too low.Specifically, the pressure resistance of water-permeable filter layer can be reduced when its too high levels
Degree；When its content is too low, the coefficient of permeability of pervious concrete can be reduced, influences the absorbent function of layer structure.
It is further preferred that the hydrophilic polymer is polyacrylate, hydroxypropyl methyl cellulose ether and its derivative
At least one of object.Preferred hydrophilic polymer water absorption rate is high, environmental protection, and configures with the other components of water-permeable filter layer
When at mix, there is relatively good compatibility, so as to guarantee the stability of the water-permeable filter layer.
Preferably, the vigorous consistency of dimension of first pervious concrete is 60~100 seconds.Particularly, the water-permeable filter layer
Water-cement ratio be 0.2~0.3, so as to by the control of water-permeable filter layer concrete integral working tie up vigorous consistency 60~
100 seconds, when Ruo Weibo consistency is smaller, slurry sank, and blocks permeable hole, reduced water-permeable filter layer coefficient of permeability；Ruo Weibo is thick
It is inadequate that poly- property is sticked when spending larger, between aggregate, reduces water-permeable filter layer concrete strength.
Further, the Unidirectional water permeable layer pours thickness≤5mm.Unidirectional water permeable layer described in the embodiment of the present invention is main
Play Unidirectional water permeable, should not be too thick, if too thick, the intensity of Unidirectional water permeable concrete structure can be reduced.
Preferably, the Unidirectional water permeable layer includes the second pervious concrete raw material and hydrophobic polymerizable of following parts by weight
Powder:
And the water-cement ratio of second pervious concrete is 0.25~0.35.
There is above-mentioned preferred Unidirectional water permeable layer compression strength to be greater than 30 megapascal, pore width less than 0.05mm, permeable system
Number is greater than the advantages of 5mm/s.
Preferably, the Unidirectional water permeable layer includes the second pervious concrete raw material and hydrophobic polymerizable of following parts by weight
Powder:
And the water-cement ratio of second pervious concrete is 0.28~0.32.
There is above-mentioned preferred Unidirectional water permeable layer compression strength to be greater than 32 megapascal, pore width less than 0.05mm, permeable system
Number is greater than the advantages of 5.3mm/s.
As most preferred embodiment, the Unidirectional water permeable layer includes the second pervious concrete raw material of following parts by weight and dredges
Polymerizable aqueous powder:
And the water-cement ratio of second pervious concrete is 0.3.
There is above-mentioned preferred Unidirectional water permeable layer compression strength to be greater than 33 megapascal, pore width less than 0.05mm, permeable system
Number is greater than the advantages of 5.5mm/s.
Wherein, the river sand of 5,0.16~1.25mm or Machine-made Sand are used as aggregate in the embodiment of the present invention；Strength grade is not
Cement less than 32.5 plays cementitious material (cement), and hydrated calcium silicate gel that hydration reaction generates occurs by aggregate with water
It bonds together；High-performance water reducing agent plays water-reduction, and each component controls water-cement ratio and be according to above-mentioned specific recipe ingredient
0.25~0.35, to obtain high-intensitive (30 megapascal of compression strength >), have saturating with the effective transition of the water-permeable filter layer
The water permeability of Unidirectional water permeable layer is efficiently improved in water hole.In the embodiment of the present invention, the content of the hydrophobic polymer can be integrated
The intensity and coefficient of permeability of water-permeable filter layer are influenced, therefore, content is unsuitable too high or too low.When its too high levels, it can reduce
The intensity of Unidirectional water permeable layer；When its content is too low, Unidirectional water permeable performance can be weakened.It is provided in an embodiment of the present invention described unidirectional saturating
Water coagulation soil is through detecting, and coefficient of permeability is more than or equal to 1mm/s, and it is high-strength that compression strength, which is more than or equal to 30MPa,
Water coagulation soil, can be used for traffic highway application.
In the embodiment of the present invention, when raining, the hydrophilic polymer in the water-permeable filter layer starts to drink up the rain, and works as suction
When receipts amount reaches saturation, rainwater flows to the Unidirectional water permeable layer under the effect of gravity.Due to hydrophobicity in the Unidirectional water permeable layer
The effect of polymer, rainwater are directed through Unidirectional water permeable layer and reach the porous base course, thus thoroughly to underground.When level of ground water increases
When long, water reversely can flow to Unidirectional water permeable layer by porous base course.Due to the effect of hydrophobic polymer in the Unidirectional water permeable layer,
It can inhibit the excessively described Unidirectional water permeable layer of underground water reverse osmosis, make underground water by the porous base course, be effectively transmitted to soil
Resource.
It is further preferred that the hydrophobic polymer be polyurethane, polymethyl methacrylate, in polystyrene extremely
Few one kind.The advantages of water absorption rate of preferred hydrophobic polymer is small, hydrophobic, preferred hydrophilic polymer be water absorption rate it is small,
Endurance quality is good.The selection gist of hydrophobic polymer is that small water absorption rate, hydrophobic, endurance quality are good, and and Unidirectional water permeable
When the concrete component of layer is configured to mix, there is relatively good compatibility, so as to guarantee the Unidirectional water permeable layer
Stability.
Preferably, the porous base course includes the third pervious concrete raw material of following parts by weight:
And the water-cement ratio of the third pervious concrete is 0.25~0.4.
There is above-mentioned preferred water-permeable filter layer compression strength to be greater than 40 megapascal, pore width less than 1.0mm, permeable system
Number is greater than the advantages of 10mm/s.
It is furthermore preferred that the porous base course includes the third pervious concrete raw material of following parts by weight:
And the water-cement ratio of the third pervious concrete is 0.29~0.36.
There is preferred water-permeable filter layer compression strength to be greater than 42.5 megapascal, pore width less than 1.0mm, permeable system
Number is greater than the advantages of 10.5mm/s.
Most preferred embodiment the most, the porous base course include the third pervious concrete raw material of following parts by weight:
And the water-cement ratio of the third pervious concrete is 0.33.
There is above-mentioned preferred water-permeable filter layer compression strength to be greater than 43 megapascal, pore width less than 1.0mm, permeable system
Number is greater than the advantages of 11mm/s.
Wherein, 5~15mm of partial size individual particle graded broken stone plays coarse aggregate in the embodiment of the present invention, and partial size 2.36~
5mm river sand plays fine aggregate, and for cement of the strength grade not less than 32.5 as cementitious material (cement), cement reacts life with water
At hydrated calcium silicate gel, aggregate is bonded together, formation compression strength is greater than 40 megapascal, pore width is less than 1.0mm, thoroughly
Water coefficient is greater than the porous base course of 10mm/s.Wherein, the aqueous epoxy resins can be improved the boundary strength between aggregate, thus
Guarantee the lasting stability of above-mentioned performance.
Preferably, the vigorous consistency of dimension of the third pervious concrete is dimension vigorous consistency 10~30 seconds.Particularly, described permeable
The ratio of mud of base is 0.25~0.4, so as to which vigorous consistency 10 is being tieed up in the control of porous base course concrete integral working
~30 seconds, when Ruo Weibo consistency is smaller, slurry sank, and blocks permeable hole, reduced porous base course coefficient of permeability；Ruo Weibo consistency
It is inadequate that poly- property is sticked when larger, between aggregate, reduces porous base course concrete strength.
Unidirectional water permeable concrete structure provided in an embodiment of the present invention, by with specific aggregate partial size, permeable hole
The porous base course of aperture and coefficient of permeability, Unidirectional water permeable layer and water-permeable filter layer composition.Wherein, Unidirectional water permeable concrete structure
Surface layer is the water-permeable filter layer with hydrophilicity, while water suction, can be achieved at the same time impurity rubbish filtering, effectively
Prevent permeable aperture from being blocked by rubbish, dust.On this basis, the Unidirectional water permeable layer fast implements Unidirectional water permeable, and can be with
Effectively avoid reversed level of ground water is excessively high, be lauched in large area to earth's surface permeate the phenomenon that.The list that the embodiment of the present invention is supplied to
To pervious concrete structure, there is good Unidirectional water permeable, gas permeability and compression strength, greatly improve permeable operational efficiency,
Engineering maintenance is reduced, the demand of green ecological development is met.It can be played using the Unidirectional water permeable concrete structure and increase city
City's groundwater resources, adjust urban climate, and the effect improved the ecological environment can be used for highway communication field.
And the embodiment of the invention also provides a kind of preparation methods of above-mentioned Unidirectional water permeable concrete structure, including with
Lower step:
Step 1: each raw material component is weighed according to the match ratio of the water-permeable filter layer, by whole aggregates, fiber and 40%
The water of weight stirs 60~90 seconds in advance, is subsequently added into whole cement, stirs 60~90 seconds, and whole water-reducing agents are then added and remain
The water of 60% remaining weight is sufficiently stirred 90~120 seconds, is eventually adding hydrophilic polymer, stirs 30~60 seconds, obtains permeable
Filter layer concrete mix；
Step 2: according to the mix calculation each raw material component of the Unidirectional water permeable layer, first by whole aggregates and 40% weight
The water of amount stirs 60~90 seconds in advance, is subsequently added into whole cement, stirs 60~90 seconds, whole water-reducing agents and residue is then added
60% weight water, be sufficiently stirred 90~120 seconds, be eventually adding hydrophobic polymer, stir 30~60 seconds, obtain it is unidirectional thoroughly
Water coagulation soil mixture；
Step 3: according to the mix calculation each raw material component of the porous base course, first by whole aggregates and 40% weight
Water stir in advance 60~90 seconds, be subsequently added into whole cement, stir 60~90 seconds, whole aqueous epoxy resins are then added,
Stirring 30~60 seconds, is eventually adding the water of whole water-reducing agents and remaining 60% weight, is sufficiently stirred 90~120 seconds, obtains
Water-base concrete mix；
Step 4: the porous base course concrete mix that step 3 is obtained pours, 10 are vibrated with plate pulsator
~20 seconds, prepare porous base course；
Step 5: the Unidirectional water permeable layer concrete mixture that step 2 obtains to be cast in the porous base course of step 4 production
On, it is vibrated 10~20 seconds using plate pulsator；
Step 6: the water-permeable filter layer concrete mix that step 1 obtains to be cast in the Unidirectional water permeable of step 5 production
It on layer, is vibrated 30~50 seconds using plate pulsator, surface is closed flat, and overlay film conserves 3 days to obtain finished product.
Specifically, the recipe ingredient of each layer is as described above, in order to save length, details are not described herein again.
The preparation method of Unidirectional water permeable concrete structure provided in an embodiment of the present invention, only need to be mixed according to each layer composition of raw materials
After material forms mixture, successively it is poured, method is simply controllable, and thus obtained Unidirectional water permeable concrete structure, has
Good Unidirectional water permeable, gas permeability and compression strength is suitable for highway communication engineering construction.
It is illustrated combined with specific embodiments below.
Embodiment 1
A kind of Unidirectional water permeable concrete structure, by porous base course, the Unidirectional water permeable layer and permeable successively combined from the bottom up
Filter layer composition, wherein the water-permeable filter layer is made of the first pervious concrete doped with hydrophilic polymer, and described the
Aggregate size≤0.63mm of one pervious concrete, and 30 megapascal of compression strength > of the water-permeable filter layer, permeable hole aperture
< 0.02mm, coefficient of permeability > 1.2mm/s；The Unidirectional water permeable layer is by the second pervious concrete doped with hydrophobic polymer
It is made, and aggregate size≤1.25mm of second pervious concrete, 30 megapascal of compression strength > of the Unidirectional water permeable layer,
Permeable hole aperture < 0.05mm, coefficient of permeability > 5mm/s；The porous base course is made of third pervious concrete, the third
The aggregate size of pervious concrete is 5-15mm, and 40 megapascal of compression strength > of the porous base course, permeable hole aperture <
1.0mm, coefficient of permeability > 10mm/s.
Specifically, the water-permeable filter layer includes the raw material of following parts by weight:
The Unidirectional water permeable layer includes the raw material of following parts by weight:
The porous base course includes the raw material of following parts by weight:
The preparation method of the Unidirectional water permeable concrete structure, comprising the following steps:
S11. each raw material component is weighed according to the match ratio of the water-permeable filter layer, by whole aggregates, fiber and 40% weight
The water of amount stirs 60~90 seconds in advance, is subsequently added into whole cement, stirs 60~90 seconds, whole water-reducing agents and residue is then added
60% weight water, be sufficiently stirred 90~120 seconds, be eventually adding hydrophilic polymer, stir 30~60 seconds, obtain permeable mistake
Filtering layer concrete mix；
S12. according to the mix calculation each raw material component of the Unidirectional water permeable layer, first by whole aggregates and 40% weight
Water stirs 60~90 seconds in advance, is subsequently added into whole cement, stirs 60~90 seconds, and whole water-reducing agents and remaining are then added
The water of 60% weight is sufficiently stirred 90~120 seconds, is eventually adding hydrophobic polymer, stirs 30~60 seconds, obtains Unidirectional water permeable
Concrete mix；
S13. according to the mix calculation each raw material component of the porous base course, first by the water of whole aggregates and 40% weight
Stirring 60~90 seconds in advance are subsequently added into whole cement, stir 60~90 seconds, whole aqueous epoxy resins, stirring is then added
30~60 seconds, it is eventually adding the water of whole water-reducing agents and remaining 60% weight, is sufficiently stirred 90~120 seconds, obtains permeable base
Layer concrete mixture；
S14. porous base course concrete mix step 3 obtained pours, and vibrates 10~20 with plate pulsator
Second, porous base course is prepared, is poured with a thickness of 85mm；
S15. the Unidirectional water permeable layer concrete mixture that step 2 obtains is cast on the porous base course of step 4 production,
It is vibrated 10~20 seconds using plate pulsator；
S16., the water-permeable filter layer concrete mix that step 1 obtains is cast in the Unidirectional water permeable layer of step 5 production
On, it is vibrated 30~50 seconds, is poured with a thickness of 10mm using plate pulsator, surface is closed flat, and overlay film conserves 3 days to obtain finished product.
Embodiment 2
A kind of Unidirectional water permeable concrete structure, by porous base course, the Unidirectional water permeable layer and permeable successively combined from the bottom up
Filter layer composition, wherein the water-permeable filter layer is made of the first pervious concrete doped with hydrophilic polymer, and described the
Aggregate size≤0.63mm of one pervious concrete, and 30 megapascal of compression strength > of the water-permeable filter layer, permeable hole aperture
< 0.02mm, coefficient of permeability > 1.2mm/s；The Unidirectional water permeable layer is by the second pervious concrete doped with hydrophobic polymer
It is made, and aggregate size≤1.25mm of second pervious concrete, 30 megapascal of compression strength > of the Unidirectional water permeable layer,
Permeable hole aperture < 0.05mm, coefficient of permeability > 5mm/s；The porous base course is made of third pervious concrete, the third
The aggregate size of pervious concrete is 5-15mm, and 40 megapascal of compression strength > of the porous base course, permeable hole aperture <
1.0mm, coefficient of permeability > 10mm/s.
Specifically, the water-permeable filter layer includes the raw material of following parts by weight:
The Unidirectional water permeable layer includes the raw material of following parts by weight:
The porous base course includes the raw material of following parts by weight:
The preparation method of the Unidirectional water permeable concrete structure, with embodiment 1.
Embodiment 3
A kind of Unidirectional water permeable concrete structure, by porous base course, the Unidirectional water permeable layer and permeable successively combined from the bottom up
Filter layer composition, wherein the water-permeable filter layer is made of the first pervious concrete doped with hydrophilic polymer, and described the
Aggregate size≤0.63mm of one pervious concrete, and 30 megapascal of compression strength > of the water-permeable filter layer, permeable hole aperture
< 0.02mm, coefficient of permeability > 1.2mm/s；The Unidirectional water permeable layer is by the second pervious concrete doped with hydrophobic polymer
It is made, and aggregate size≤1.25mm of second pervious concrete, 30 megapascal of compression strength > of the Unidirectional water permeable layer,
Permeable hole aperture < 0.05mm, coefficient of permeability > 5mm/s；The porous base course is made of third pervious concrete, the third
The aggregate size of pervious concrete is 5-15mm, and 40 megapascal of compression strength > of the porous base course, permeable hole aperture <
1.0mm, coefficient of permeability > 10mm/s.
Specifically, the water-permeable filter layer includes the raw material of following parts by weight:
The Unidirectional water permeable layer includes the raw material of following parts by weight:
The porous base course includes the raw material of following parts by weight:
The preparation method of the Unidirectional water permeable concrete structure, with embodiment 1.
Embodiment 4
A kind of Unidirectional water permeable concrete structure, by porous base course, the Unidirectional water permeable layer and permeable successively combined from the bottom up
Filter layer composition, wherein the water-permeable filter layer is made of the first pervious concrete doped with hydrophilic polymer, and described the
Aggregate size≤0.63mm of one pervious concrete, and 30 megapascal of compression strength > of the water-permeable filter layer, permeable hole aperture
< 0.02mm, coefficient of permeability > 1.2mm/s；The Unidirectional water permeable layer is by the second pervious concrete doped with hydrophobic polymer
It is made, and aggregate size≤1.25mm of second pervious concrete, 30 megapascal of compression strength > of the Unidirectional water permeable layer,
Permeable hole aperture < 0.05mm, coefficient of permeability > 5mm/s；The porous base course is made of third pervious concrete, the third
The aggregate size of pervious concrete is 5-15mm, and 40 megapascal of compression strength > of the porous base course, permeable hole aperture <
1.0mm, coefficient of permeability > 10mm/s.
Specifically, the water-permeable filter layer includes the raw material of following parts by weight:
The Unidirectional water permeable layer includes the raw material of following parts by weight:
The porous base course includes the raw material of following parts by weight:
The preparation method of the Unidirectional water permeable concrete structure, with embodiment 1.
Embodiment 5
A kind of Unidirectional water permeable concrete structure, by porous base course, the Unidirectional water permeable layer and permeable successively combined from the bottom up
Filter layer composition, wherein the water-permeable filter layer is made of the first pervious concrete doped with hydrophilic polymer, and described the
Aggregate size≤0.63mm of one pervious concrete, and 30 megapascal of compression strength > of the water-permeable filter layer, permeable hole aperture
< 0.02mm, coefficient of permeability > 1.2mm/s；The Unidirectional water permeable layer is by the second pervious concrete doped with hydrophobic polymer
It is made, and aggregate size≤1.25mm of second pervious concrete, 30 megapascal of compression strength > of the Unidirectional water permeable layer,
Permeable hole aperture < 0.05mm, coefficient of permeability > 5mm/s；The porous base course is made of third pervious concrete, the third
The aggregate size of pervious concrete is 5-15mm, and 40 megapascal of compression strength > of the porous base course, permeable hole aperture <
1.0mm, coefficient of permeability > 10mm/s.
Specifically, the water-permeable filter layer includes the raw material of following parts by weight:
The Unidirectional water permeable layer includes the raw material of following parts by weight:
The porous base course includes the raw material of following parts by weight:
The preparation method of the Unidirectional water permeable concrete structure, with embodiment 1.
Comparative example 1
Other than water-permeable filter layer pours 15mm thickness, porous base course pours 80mm thickness, other conditions are the same as embodiment 1.
Comparative example 2
Other than Unidirectional water permeable layer pours 15mm thickness, porous base course pours 75mm thickness, other conditions are the same as embodiment 1.
Comparative example 3
Other than the ratio of mud 0.45 of porous base course, other conditions are the same as embodiment 1.
Comparative example 4
In addition to porous base course water-reducing agent 7 especially, other conditions are the same as embodiment 1.
Comparative example 5
In addition to Unidirectional water permeable layer polystyrene 0 especially, other conditions are the same as embodiment 1.
Comparative example 6
In addition to water-permeable filter layer Sodium Polyacrylate 0 especially, other conditions are the same as embodiment 1.
Pervious concrete with Unidirectional water permeable performance described in case study on implementation 1~5, comparison case 1~6 is made into standard
Test specimen carries out compression strength, coefficient of permeability test to the pervious concrete with Unidirectional water permeable performance, and experimental data is shown in Table 1.
Table 1
As seen from Table 1,1 water-permeable filter layer of comparative example pours 15mm thickness, porous base course pours 80mm thickness, right with embodiment 1
Than compression strength reduction is more, and coefficient of permeability does not change.2 Unidirectional water permeable layer of comparative example pours 15mm thickness, porous base course pours
75mm is thick, compares with embodiment 1, and compression strength reduces more, coefficient of permeability essentially unchangedization.The water of 3 porous base course of comparative example
Gray scale 0.45 is compared with embodiment 1, and compression strength increases more, the coefficient of permeability reduction from water-permeable filter layer to porous base course
Larger, the coefficient of permeability from porous base course to water-permeable filter layer does not change.7 parts of the water-reducing agent of 4 porous base course of comparative example, with reality
The comparison of example 1 is applied, compression strength increases more than 1 times, and coefficient of permeability from water-permeable filter layer to porous base course reduces by 10 times or so, from saturating
The coefficient of permeability of water-base to water-permeable filter layer does not change.50 part of Unidirectional water permeable layer polystyrene of comparative example, it is right with embodiment 1
Than compression strength does not change, and the coefficient of permeability from water-permeable filter layer to porous base course does not change, from porous base course to permeable
The coefficient of permeability of filter layer increases to 0.6mm/s by 0mm/s, can not achieve Unidirectional water permeable.6 water-permeable filter layer polypropylene of comparative example
0 part of sour sodium is compared with embodiment 1, and compression strength does not change, and the coefficient of permeability from water-permeable filter layer to porous base course reduces by 17
Times or so, the coefficient of permeability from porous base course to water-permeable filter layer does not change.By a large number of experiments, selected by the embodiment of the present invention
Water-permeable filter layer thickness, Unidirectional water permeable thickness degree, porous base course thickness, the ratio of mud, water-reducing agent dosage, hydrophilic polymer taken
Object, hydrophobic polymerizable substance are optimal.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (7)
1. a kind of Unidirectional water permeable concrete structure, which is characterized in that by porous base course, the Unidirectional water permeable successively combined from the bottom up
Layer and water-permeable filter layer composition, wherein the water-permeable filter layer is by the first pervious concrete system doped with hydrophilic polymer
At, aggregate size≤0.63mm of first pervious concrete, and 30 megapascal of compression strength > of the water-permeable filter layer, thoroughly
Water hole aperture < 0.02mm, coefficient of permeability > 1.2mm/s；The Unidirectional water permeable layer is saturating by second doped with hydrophobic polymer
Water coagulation soil is made, and aggregate size≤1.25mm of second pervious concrete, the compression strength of the Unidirectional water permeable layer
30 megapascal of >, permeable hole aperture < 0.05mm, coefficient of permeability > 5mm/s；The porous base course is made of third pervious concrete,
The aggregate size of the third pervious concrete is 5-15mm, and 40 megapascal of compression strength > of the porous base course, permeable hole
Wherein, the water-permeable filter layer includes the first permeable coagulation of following parts by weight by aperture < 1.0mm, coefficient of permeability > 10mm/s
Native raw material and hydrophilic polymer powder:
And the water-cement ratio of first pervious concrete is 0.2~0.3；
The Unidirectional water permeable layer includes the second pervious concrete raw material and hydrophobic polymerizable powder of following parts by weight:
And the water-cement ratio of second pervious concrete is 0.25~0.35；
The porous base course includes the third pervious concrete raw material of following parts by weight:
And the water-cement ratio of the third pervious concrete is 0.25~0.4.
2. Unidirectional water permeable concrete structure as described in claim 1, which is characterized in that the hydrophilic polymer is polypropylene
At least one of hydrochlorate, hydroxypropyl methyl cellulose ether and its derivative.
3. Unidirectional water permeable concrete structure as described in claim 1, which is characterized in that the hydrophobic polymer is poly- ammonia
At least one of ester, polymethyl methacrylate, polystyrene.
4. Unidirectional water permeable concrete structure as described in claim 1, which is characterized in that the Unidirectional water permeable layer pours thickness
≤5mm。
5. the Unidirectional water permeable concrete structure as described in claim 1-4 is any, which is characterized in that the water-permeable filter layer pours
Build thickness≤10mm.
6. the Unidirectional water permeable concrete structure as described in claim 1-4 is any, which is characterized in that first pervious concrete
The vigorous consistency of dimension be 60~100 seconds；
The vigorous consistency of dimension of second pervious concrete is 30~50 seconds；
The vigorous consistency of dimension of the third pervious concrete is dimension vigorous consistency 10~30 seconds.
7. a kind of preparation method of the Unidirectional water permeable concrete structure as described in claim 1-6 is any, comprising the following steps:
Step 1: each raw material component is weighed according to the match ratio of the water-permeable filter layer, by whole aggregates, fiber and 40% weight
Water stir in advance 60~90 seconds, be subsequently added into whole cement, stir 60~90 seconds, whole water-reducing agents and remaining are then added
The water of 60% weight is sufficiently stirred 90~120 seconds, is eventually adding hydrophilic polymer, stirs 30~60 seconds, obtains permeable filtering
Layer concrete mixture；
Step 2: according to the mix calculation each raw material component of the Unidirectional water permeable layer, first by whole aggregates and 40% weight
Water stirs 60~90 seconds in advance, is subsequently added into whole cement, stirs 60~90 seconds, and whole water-reducing agents and remaining are then added
The water of 60% weight is sufficiently stirred 90~120 seconds, is eventually adding hydrophobic polymer, stirs 30~60 seconds, obtains Unidirectional water permeable
Concrete mix；
Step 3: according to the mix calculation each raw material component of the porous base course, first by the water of whole aggregates and 40% weight
Stirring 60~90 seconds in advance are subsequently added into whole cement, stir 60~90 seconds, whole aqueous epoxy resins, stirring is then added
30~60 seconds, it is eventually adding the water of whole water-reducing agents and remaining 60% weight, is sufficiently stirred 90~120 seconds, obtains permeable base
Layer concrete mixture；
Step 4: the porous base course concrete mix that step 3 is obtained pours, 10~20 are vibrated with plate pulsator
Second, prepare porous base course；
Step 5: the Unidirectional water permeable layer concrete mixture that step 2 obtains is cast on the porous base course of step 4 production,
It is vibrated 10~20 seconds using plate pulsator；
Step 6: the water-permeable filter layer concrete mix that step 1 obtains to be cast in the Unidirectional water permeable layer of step 5 production
On, it is vibrated 30~50 seconds using plate pulsator, surface is closed flat, and overlay film conserves 3 days to obtain finished product.
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| CN111018438A (en) * | 2019-12-16 | 2020-04-17 | 佛冈龙清电力器材有限公司 | Concrete for road edge stone, road edge stone and preparation method thereof |
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