CN108455900A - Pervious concrete and its preparation process, paving process - Google Patents
Pervious concrete and its preparation process, paving process Download PDFInfo
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- CN108455900A CN108455900A CN201810074968.7A CN201810074968A CN108455900A CN 108455900 A CN108455900 A CN 108455900A CN 201810074968 A CN201810074968 A CN 201810074968A CN 108455900 A CN108455900 A CN 108455900A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- 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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/045—Polyalkenes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F228/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a bond to sulfur or by a heterocyclic ring containing sulfur
- C08F228/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a bond to sulfur or by a heterocyclic ring containing sulfur by a bond to sulfur
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
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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
-
- 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
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
- E01C7/142—Mixtures or their components, e.g. aggregate
-
- 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
- C04B2111/0075—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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Materials Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Inorganic Chemistry (AREA)
- Road Paving Structures (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of pervious concrete and its preparation process, paving process; its key points of the technical solution are that including base and the face being arranged above base layer protective layer; the base includes the component of following parts by weight, 140 ~ 160 parts of water, 360 ~ 390 parts of cement, 20 ~ 30 parts of flyash, 1600 ~ 1900 parts of rubble, 5 ~ 10 parts of carclazyte, 1 ~ 2 part of polyacrylonitrile-based carbon fibre, 1 ~ 2 part of kaolin, 6 ~ 12 parts of pervious concrete special additive.Pervious concrete includes base's knead dough layer protective layer; wherein base has good structural strength; on the one hand the wear-resisting property of reinforcing material is capable of in the setting of face layer protective layer, on the other hand can obstruct partial impurities and enter in base, the pore plugging for reducing base causes to clear up difficult phenomenon.The flyash being added in base can enhance the structural strength of base；On the one hand the addition of carclazyte can decompose moieties and enhance the intensity of base；Polyacrylonitrile-based carbon fibre can equally enhance the structural strength of base.
Description
Technical field
The present invention relates to concrete field, more particularly to a kind of pervious concrete and its preparation process, paving process.
Background technology
As urbanization promotes, the impermeability material of large area is applied to the construction in city, is caused to living environment
It seriously endangers, such as the shortage of tropical island effect, urban waterlogging, groundwater resources, surface subsidence and rainwash pollution.
Pervious concrete is a kind of environmental environment-friendly concrete, can effectively extenuate traditional impermeability and mats formation and be made to environment
At harmful effect.Pervious concrete belongs to skeleton-pore structure, by the mutual interior frictional resistance of aggregate and cementitious material
Cohesive force forms certain intensity, due to the hole between not having fine aggregate to fill coarse aggregate, to form more hole, tool
There is good water penetration.
But since pervious concrete is that the structure of hole is merely able to so the structural strength of pervious concrete is relatively low
It is big using limitation for light-duty load road surface.
Invention content
In view of the deficienciess of the prior art, the first object of the present invention is to provide a kind of pervious concrete, this is permeable mixed
Solidifying soil has larger intensity, advantage applied widely.
The present invention above-mentioned technical purpose technical scheme is that：A kind of pervious concrete, including
Base and the face layer protective layer being arranged above base, the base includes the component of following parts by weight, 140~160 parts of water,
360~390 parts of cement, 20~30 parts of flyash, 1600~1900 parts of rubble, 5~10 parts of carclazyte, polyacrylonitrile-based carbon fibre 1
~2 parts, 1~2 part of kaolin, 6~12 parts of pervious concrete special additive.
Through the above technical solutions, the base of pervious concrete can play the function and effect of support, face layer protective layer
The clogging of base can be reduced to a certain extent by being arranged；Enhance the water permeability after concrete long-time use；Flyash
It is the fine ash that catching is got off from the flue gas after coal combustion, the utilization rate for that can improve flyash in concrete reduces powder
The waste of coal ash；And the flyash added in concrete has saved a large amount of cement and fine aggregate；Reduce and uses cement consumption；Change
It has been apt to the workability of coagulation mix；Enhance the pumpability of concrete；Reduce creeping for concrete；Reduce the heat of hydration, thermal energy
Dilatancy；Improve the anti-permeability performance of concrete.Carclazyte is pale powder particle, has larger specific surface area and Kong Rong, special
Different adsorption capacity and ion returns performance, there is stronger decoloration performance and activity, and the rear stability that decolourizes can be good, can inhale
The unstable materials such as attached unsaturated hydrocarbons, sulfide, colloid and asphalitine, in pervious concrete using this portion can be sponged
The harmful substance divided；The polyacrylonitrile-based carbon fibre of addition can enhance the structural strength of pervious concrete；Kaolinic addition
The plasticity and sticky that pervious concrete can be enhanced, enhance the intensity of pervious concrete.
The present invention is further arranged to：The pervious concrete special additive includes the component of following parts by weight：Sulphur
1~1.5 part of calcium aluminate, 1~1.5 part of activated bauxite, 2~3 parts of water-reducing agent, 05~1 part of the hydrosol, is protected and is collapsed 1~2 part of cementing agent
0.5~1 part of agent, 0.5~1 part of water-retaining agent, 0.5~1 part of antifoaming agent.
Through the above technical solutions, calcium sulphoaluminate can play the function and effect of swelling agent；Cementing agent can enhance permeable
Gluing performance between concrete；Activated bauxite dynamics is uniform, and surface is smooth, and mechanical strength is big, and hygroscopicity is strong, after water suction it is not swollen not
Split holding original state.
The present invention is further arranged to：The cementing agent includes polyamide, absolute ethyl alcohol, silane coupling agent, phenols
Accelerating agent and 2,4- DI-tert-butylphenol compounds.
Through the above technical solutions, cementing agent made of said components can have wider use scope.
The present invention is further arranged to：The water-reducing agent selection beta-cyclodextrin class polycarboxylate water-reducer or shrinkage type polycarboxylic acids
Water-reducing agent.
Through the above technical solutions, in beta-cyclodextrin class polycarboxylate water-reducer containing carboxyl, sulfonic group, polyoxyethylene groups and
Beta-cyclodextrin, the compression strength the comparison of the growth without bleeding, segregation phenomenon, and concrete is fast when being used for fresh concrete.
The present invention is further arranged to：The slump retaining agent selection selection polycarboxylic-acid slump retaining agent.
Through the above technical solutions, the cohesiveness of concrete mix can be improved in polycarboxylic-acid slump retaining agent, concrete is improved
The anti-isolation of mixture, anti-bleeding performance, and concrete mix is made to obtain the preferable slump.Polycarboxylic-acid slump retaining agent with it is poly-
Carboxylic acid water reducer mating reaction together, can effectively overcome concrete mix occur " grabbing bottom ", " hardened " phenomena such as.
The present invention is further arranged to：In the water-retaining agent selection polyacrylamide, methylcellulose or water-absorbing resin
It is a kind of.
Through the above technical solutions, the polyacrylamide in water-retaining agent can increase the blending property between component；Methyl is fine
Dimension element is capable of the water retention property of reinforcing material, can also enhance the intensity of concrete material.
The present invention is further arranged to：The antifoaming agent selects self-emulsifying type Siloxane-Oxyalkylene Copolymers antifoaming agent.
Through the above technical solutions, self-emulsifying type Siloxane-Oxyalkylene Copolymers antifoaming agent disappears polyether antifoam agent and organosilicon
The high effective antifoaming agent that the advantages of both infusions combines, have surface tension is low, defoaming is rapid, the suds time is long, it is at low cost,
The characteristics of dosage is few, wide application.
The present invention is further arranged to：The face layer protective layer includes 5~10 parts of modified coal ash, lytag 1
~2 parts, double-[γ-(triethoxysilicane) propyl] 1~1.2 part of tetrasulfide, 1~2 part of lotus leaf hydrophobing agent, EP rubbers 5~10
Part, 5~10 parts of glass powder, EVA2~4 part, 1~2 part of carbon nanotube.
Through the above technical solutions, modified coal ash, lytag be added can be between reinforcing material gluing performance,
EP rubbers can enhance the wear-resisting property of face layer, and the addition of carbon nanotube can enhance the wearability and water permeability of face layer；
Double-[γ-(triethoxysilicane) propyl] tetrasulfide cooperation EP rubbers can enhance the cross-linking properties between component.
The another goal of the invention of the present invention is to provide a kind of preparation process of pervious concrete, including following preparation step
Suddenly：S1：The preparation process of base：
10~20 parts of water are poured into blender, blender is soaked；
Rubble, polyacrylonitrile-based carbon fibre pour into blender, uniformly mix；
Remaining water is added, is stirred evenly；
Blender is added in cement, flyash, carclazyte, kaolin and pervious concrete special additive, and is added into blender
Enter dry ice, stirs evenly；
S2：The preparation process of face layer：
By modified coal ash, lytag, double-[γ-(triethoxysilicane) propyl] tetrasulfide, lotus leaf hydrophobing agent, second third
Rubber, glass powder, EVA and carbon nanotube, which sequentially add in water, to stir evenly.
To disperse between each component through the above technical solutions, the dry ice particles being added can play the role of dispersion
It is even, while dry ice distils during blender stirs and forms carbon dioxide gas, enhances the mobility of concrete and mixes and stirs
Property, and the process heat absorption of dry ice particles distillation can reduce the heat of hydration of cement, the performance of the concrete of formation is stablized, and does simultaneously
The presence of ice can form stomata between concrete, enhance the water permeability of pervious concrete.
The another goal of the invention of the present invention is to provide a kind of paving process of pervious concrete：Mated formation including following
Journey：Step 1：The base prepared is delivered to building site of mating formation；
Step 2：Formwork erection is completed before paving to make；The place of construction surface, formwork erection before paving etc. and concrete road surface contact is completed
Watering wetting；The coefficient that paves is 1.1~1.25；, compacting levelling using construction machinery smoothes out；
Step 3：Face layer protective layer is uniformly paved on substrate surface under conditions of base is half-dried.
Through the above technical solutions, mating formation for pervious concrete can be completed by the above process.
In conclusion the present invention having the beneficial effect that in contrast to the prior art：
1, the pervious concrete in present specification includes base's knead dough layer protective layer, and wherein base has good structure strong
On the one hand the wear-resisting property of reinforcing material is capable of in the setting of degree, face layer protective layer, on the other hand can obstruct partial impurities entrance
Into base, the pore plugging for reducing base causes to clear up difficult phenomenon；
2, the flyash being added in base can enhance the structural strength of base；On the one hand the addition of carclazyte can decompose part object
Matter and the intensity for enhancing base；Polyacrylonitrile-based carbon fibre can equally enhance the structural strength of base；
3, polycarboxylic-acid slump retaining agent coordinates one same-action of polycarboxylate water-reducer, can effectively overcome " grabbing for concrete mix appearance
The phenomenon that bottom ", " hardened "；
4, on the one hand the addition for the dry ice particles being added when prepared by concrete absorbs the heat of hydration of cement, another aspect dry ice particles
It can promote to be uniformly dispersed between concrete each component；
5, the addition of lotus leaf hydrophobing agent can improve the water permeability of face layer protective layer and base in face layer protective layer, and can reduce
The blocking of face layer protective layer and base.
Description of the drawings
Fig. 1 is the overall structure figure of embodiment 1.
Reference numeral：1, base；2, face layer protective layer.
Specific implementation mode
Invention is further described in detail with reference to embodiments.
Embodiment 1
A kind of pervious concrete, as shown in Figure 1, including base 1 and the face being arranged above base 1 layer protective layer 2.
Base 1 includes water, cement, flyash, rubble, carclazyte, polyacrylonitrile-based carbon fibre, kaolin, pervious concrete
Special additive.
Pervious concrete special additive includes the component of following parts by weight：Calcium sulphoaluminate, cementing agent, activated bauxite,
Water-reducing agent, the hydrosol, slump retaining agent, water-retaining agent, antifoaming agent；
Cementing agent includes polyamide, absolute ethyl alcohol, silane coupling agent, phenol accelerant and 2,4- DI-tert-butylphenol compounds；
Water-reducing agent selects beta-cyclodextrin class polycarboxylate water-reducer or shrinkage type polycarboxylate water-reducer.
(1) synthetic method of beta-cyclodextrin class polycarboxylate water-reducer is：By TPEG (111.3g, 46.4mmol) and MA- β-
CD (19.2g, 14.5mmol) is placed in four round flask (500ml), distilled water (160ml) is added, and flask is placed in water
In bath, 60 DEG C are warming up to, clear solution is obtained under stirring；Then hydrogen peroxide (mass fraction 30%) solution (1.5g) is added.
L-AA (0.25g, 1.42mmol) and 3- mercaptopropionic acids (0.5g, 4.71mmol) are dissolved in distilled water (45ml) to be drawn
Send out agent solution.Monomer solution is dissolved in by acrylic acid (11g, 152.6mmol) and methylpropene sodium sulfonate (2.0g, 12.6mmol)
Distilled water (30ml) obtains.Meanwhile monomer solution and initiator solution are added dropwise to reaction bulb, distinguish used time 3.0h and 3.5h,
Then proceed to reaction 1h.It waits after the completion of reacting, is cooled to room temperature, sodium hydroxide solution (mass fraction 30%) is selected to adjust reaction
The pH of liquid is 6.8.The polymer solution of acquisition is shallow yellow transparent solution, and beta-cyclodextrin class polycarboxylate water-reducer is made.
(2) synthetic method of shrinkage type polycarboxylate water-reducer is：To equipped with thermometer, agitating device, spherical condensating tube
Cis-butenedioic anhydride, diethylene glycol monobutyl ether (or the tert-butyl alcohol is added simultaneously) and catalyst, heating, insulation reaction is added in four-hole boiling flask
Then 5h cools down and load weighted TPEG, suitable quantity of water and chain-transferring agent is added into four-hole boiling flask, stirs 5min, start to be added dropwise
Initiator solution, and added in 2h, cool down after continuing insulation reaction 1h, it is 6-7 to be then neutralized to pH with 30% liquid caustic soda, system
Obtain shrinkage type polycarboxylate water-reducer.
Slump retaining agent selection selection polycarboxylic-acid slump retaining agent；
Water-retaining agent selects one kind in polyacrylamide, methylcellulose or water-absorbing resin；
Antifoaming agent selects self-emulsifying type Siloxane-Oxyalkylene Copolymers antifoaming agent.
Self-emulsifying type Siloxane-Oxyalkylene Copolymers antifoaming agent includes following preparation process：
Step 1：5~10 parts of hydrophobic silica and 100 parts of dimethicone are continuously stirred 4~6 at 150~180 DEG C
Hour, 1h is kept the temperature, Siloxane-Oxyalkylene Copolymers silicon cream is made；
Step 2：The Siloxane-Oxyalkylene Copolymers silicon cream of two kinds of different HLB values is dissolved in the water, is sufficiently stirred at 50~60 DEG C
Silicon cream, hexadecanol, thickener is added in 1h, stirs 2 hours, 40 DEG C of heat preservation 1h, discharging.
Face layer protective layer 2 includes modified coal ash, lytag, double-vulcanization of [γ-(triethoxysilicane) propyl] four
Object, lotus leaf hydrophobing agent, EP rubbers, glass powder, EVA, carbon nanotube.
The concrete component of Examples 1 to 8 is matched according to table 1.
1 base's each group distribution ratio of table
The proportioning of the concrete special additive of 2 Examples 1 to 8 of table
| Component | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 | Embodiment 8 |
| Calcium sulphoaluminate | 1 | 1.1 | 1.2 | 1.3 | 1.4 | 1.5 | 1.4 | 1.3 |
| Cementing agent | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 |
| Activated bauxite | 1 | 1.1 | 1.1 | 1.3 | 1.3 | 1.5 | 1.5 | 1.5 |
| Water-reducing agent | 3 | 3 | 2 | 2 | 1 | 1 | 2 | 2 |
| The hydrosol | 0.5 | 0.5 | 0.5 | 1 | 1 | 1 | 0.5 | 0.5 |
| Slump retaining agent | 0.5 | 0.5 | 0.5 | 1 | 1 | 1 | 0.5 | 0.5 |
| Water-retaining agent | 1 | 1 | 0.5 | 0.5 | 1 | 1 | 0.5 | 0.5 |
| Antifoaming agent | 0.5 | 0.5 | 1 | 1 | 0.5 | 0.5 | 1 | 1 |
The proportioning of 3 face of table layer protective layer each component
Embodiment 9
A kind of preparation process of pervious concrete, including following preparation process：
S1：The preparation process of base 1：
10~20 parts of water are poured into blender, blender is soaked；
Rubble, polyacrylonitrile-based carbon fibre pour into blender, uniformly mix；
Remaining water is added, is stirred evenly；
Blender is added in cement, flyash, carclazyte, kaolin and pervious concrete special additive, and is added into blender
Enter dry ice, stirs evenly；
S2：The preparation process of face layer protective layer 2：
By modified coal ash, lytag, double-[γ-(triethoxysilicane) propyl] tetrasulfide, lotus leaf hydrophobing agent, second third
Rubber, glass powder, EVA and carbon nanotube, which sequentially add in water, to stir evenly.
Embodiment 10
A kind of paving process of pervious concrete, including following pavement process：
Step 1：The base 1 prepared is delivered to building site of mating formation；
Step 2：Formwork erection is completed before paving to make；The place of construction surface, formwork erection before paving etc. and concrete road surface contact is completed
Watering wetting；The coefficient that paves is 1.1~1.25；, compacting levelling using construction machinery smoothes out；
Step 3：Face layer protective layer 2 is uniformly paved on 1 surface of base under conditions of base 1 is half-dried.
Testing inspection
1, according to GB/T 50081-2002《Normal concrete mechanical property tests method standard》Test the mechanical property of concrete
Energy；
2, according to GB/T 50080-2002《Normal concrete mix performance test method standard》Test the mechanical property of concrete
Energy.
The laboratory test results of 4 Examples 1 to 8 of table
As seen from the above table, the intensity of the concrete in Examples 1 to 8.Wear-resisting property is more excellent, and water permeability is good.
The reference embodiment of selection example 4 as a comparison case.
Comparative example 1
Comparative example 1 and embodiment 4 be not difference lies in containing carclazyte in the base of comparative example 1 (1) component, other are and embodiment
4 are consistent.
Comparative example 2
Comparative example 2 and embodiment 4 difference lies in not containing polyacrylonitrile-based carbon fibre in 2 base of comparative example (1) component, other
It is consistent with embodiment 4.
Comparative example 3
Difference lies in do not contain carclazyte and polyacrylonitrile-radical in 3 base of comparative example (1) component simultaneously with embodiment 4 for comparative example 3
Carbon fiber, other are consistent with embodiment 4.
Concrete made of component according to Examples 1 to 8 is detected method and is detected to comparative example 1~3, detection
As a result it is recorded in table 5.
The laboratory test results of 5 comparative example 1~3 of table
| Detection project | Comparative example 1 | Comparative example 2 | Comparative example 3 | Embodiment 4 |
| 28d compression strength/Mpa | 35.4 | 34.5 | 32.1 | 39.0 |
| Slump flow test/mm | 550 | 550 | 550 | 585 |
| Wearability kg/m2 | 1.0 | 1.1 | 1.05 | 0.9 |
| Water penetration mm/s | 3 | 3 | 3 | 2.5 |
The laboratory test results for analyzing comparative example 1 and embodiment 4, when in component without containing carclazyte the properties of concrete by
Influence is arrived, so the presence of carclazyte can enhance the performance of concrete；It analyzes comparative example 2 and the experiment detection of embodiment 4 is tied
Fruit, when not containing polyacrylonitrile-based carbon fibre in component, the properties of concrete are affected, so polyacrylonitrile
The presence of base carbon fibre can enhance the performance of concrete；And when in comparative example 3 while without containing carclazyte and polyacrylonitrile-based carbon
When fiber, the performance of concrete significantly reduces, then illustrating can be to mixed when carclazyte and polyacrylonitrile-based carbon fibre are used cooperatively
The performance for coagulating soil has an impact.
The above is only the exemplary embodiment of the present invention, protection domain and is not intended to limit the present invention, this hair
Bright protection domain is determined by the attached claims.
Claims (10)
1. a kind of pervious concrete, it is characterized in that：Include the face layer protective layer (2) of base (1) and setting above base (1),
The base (1) includes the component of following parts by weight, 140 ~ 160 parts of water, 360 ~ 390 parts of cement, 20 ~ 30 parts of flyash, broken
1600 ~ 1900 parts of stone, 5 ~ 10 parts of carclazyte, 1 ~ 2 part of polyacrylonitrile-based carbon fibre, 1 ~ 2 part of kaolin, pervious concrete are special additional
6 ~ 12 parts of agent.
2. pervious concrete according to claim 1, it is characterized in that：The pervious concrete special additive includes as follows
The component of parts by weight：1 ~ 1.5 part of calcium sulphoaluminate, 1 ~ 2 part of cementing agent, 1 ~ 1.5 part of activated bauxite, 2 ~ 3 parts of water-reducing agent, the hydrosol
0.5 ~ 1 part, 0.5 ~ 1 part of slump retaining agent, 0.5 ~ 1 part of water-retaining agent, 0.5 ~ 1 part of antifoaming agent.
3. pervious concrete according to claim 2, it is characterized in that：The cementing agent includes polyamide, anhydrous second
Alcohol, silane coupling agent, phenol accelerant and 2,4- DI-tert-butylphenol compounds.
4. pervious concrete according to claim 2, it is characterized in that：The water-reducing agent selection beta-cyclodextrin class polycarboxylic acids subtracts
Aqua or shrinkage type polycarboxylate water-reducer.
5. pervious concrete according to claim 2, it is characterized in that：The slump retaining agent selection selection polycarboxylic-acid guarantor is collapsed
Agent.
6. pervious concrete according to claim 2, it is characterized in that：The water-retaining agent selection polyacrylamide, methyl are fine
One kind in dimension element or water-absorbing resin.
7. pervious concrete according to claim 2, it is characterized in that：The antifoaming agent selection self-emulsifying type is polyether-modified poly-
Silicone antifoam agent.
8. pervious concrete according to claim 1, it is characterized in that：The face layer protective layer (2) includes modified fine coal
5 ~ 10 parts of ash, 1 ~ 2 part of lytag, double-[γ-(triethoxysilicane) propyl] 1 ~ 1.2 part of tetrasulfide, lotus leaf hydrophobing agent 1 ~
2 parts, 5 ~ 10 parts of EP rubbers, 5 ~ 10 parts of glass powder, EVA2 ~ 4 part, 1 ~ 2 part of carbon nanotube.
9. a kind of preparation process of pervious concrete, it is characterized in that：Including following preparation process：S1：The preparation work of base (1)
Skill：
10 ~ 20 parts of water are poured into blender, blender is soaked；
Rubble, polyacrylonitrile-based carbon fibre pour into blender, uniformly mix；
Remaining water is added, is stirred evenly；
Blender is added in cement, flyash, carclazyte, kaolin and pervious concrete special additive, and is added into blender
Enter dry ice, stirs evenly；
S2：The preparation process of face layer protective layer (2)：
By modified coal ash, lytag, double-[γ-(triethoxysilicane) propyl] tetrasulfide, lotus leaf hydrophobing agent, second third
Rubber, glass powder, EVA and carbon nanotube, which sequentially add in water, to stir evenly.
10. a kind of paving process of pervious concrete, it is characterized in that：Including following pavement process：
Step 1：The base prepared (1) is delivered to building site of mating formation；
Step 2：Formwork erection is completed before paving to make；The place of construction surface, formwork erection before paving etc. and concrete road surface contact is completed
Watering wetting；The coefficient that paves is 1.1~1.25；, compacting levelling using construction machinery smoothes out；
Step 3：Face layer protective layer (2) is uniformly paved on base (1) surface under conditions of base (1) is half-dried.
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| CN114207217A (en) * | 2019-04-17 | 2022-03-18 | 波音公司 | Permeable pavement systems including permeable pavement compositions and related methods |
| WO2021035585A1 (en) * | 2019-08-28 | 2021-03-04 | 黄贺明 | Artificial porous volcanic rock board and preparation method therefor |
| CN112195706A (en) * | 2020-08-14 | 2021-01-08 | 江苏固迈新材料技术有限公司 | Comfortable type permeable pavement of elasticity |
| CN112663898A (en) * | 2020-12-25 | 2021-04-16 | 北京金隅混凝土有限公司 | Wear-resistant concrete ground construction process |
| CN112876172A (en) * | 2021-03-03 | 2021-06-01 | 广州市长运预拌混凝土有限公司 | Recycled concrete and preparation method thereof |
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