CN105622132B - A kind of sponge urban environmental protection regeneration aggregate pervious concrete and preparation method thereof - Google Patents
A kind of sponge urban environmental protection regeneration aggregate pervious concrete and preparation method thereof Download PDFInfo
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
- C04B2111/00017—Aspects relating to the protection of the environment
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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
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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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
-
- 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
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses a kind of sponge urban environmental protection regeneration aggregate pervious concrete and preparation method thereof, its is raw materials used to include by weight：320 360 parts of cement, 40 80 parts of lithium ground-slag, 20 30 parts of ultra-fine microballon, 20 40 parts of silicon ash, 700 900 parts of regenerated coarse aggregate, 400 500 parts of natural coarse aggregate, 34 parts of water reducer, 100 120 parts of water, 10 20 parts of polyacrylate, 10 20 parts of adhesive, 20 30 parts of flexibilizer additive, 1 1.2 parts of triethanolamine, 0.05 0.1 parts of sodium gluconate, 5 10 parts of conserving material.The present invention flexibilizer additive that raw material prepares uniqueness such as is combined using modified activated carbon composite element nano material, the wood powder of activation process, isotactic polypropylene, there is water penetration very high with its obtained high-strength and high-ductility regenerated aggregate concrete, be adapted to sponge city and use.
Description
Technical field
The invention belongs to building material field, and in particular to a kind of sponge urban environmental protection regeneration aggregate pervious concrete and its
Preparation method.
Background technology
Sponge urban construction should follow the principles such as Ecology Precedence, and natural way is combined with artificial measures, ensure city
On the premise of city's drainage waterlogging prevention safety, accumulation, infiltration and purification of the rainwater in urban area are realized to greatest extent, promote rainwater
The utilization and ecological environmental protection of resource.It is not to make a new start to build " sponge city ", replaces traditional drainage system, but
One kind " Reduction of Students' Study Load " and supplement to conventional drainage systems, farthest play city effect in itself.In sponge urban construction
During, the systematicness of natural precipitation, surface water and groundwater should be planned as a whole, coordinate each links of water circulation use such as feedwater, draining,
And consider its complexity and chronicity.As the important symbol that urban development theory and construction mode make the transition, China sponge city
Build " timetable " clearly and " can only be forward, it is impossible to backward ".Sponge city is formulated in existing more than 130 city in the whole nation
Construction scheme.
It is the important technical for realizing efficiently " oozing ", " row " using pervious concrete laying urban road and square.With
Normal concrete is compared, and pervious concrete most outstanding feature is free from fine aggregate, with larger porosity, and moisture can pass through
Hole permeates rapidly.Pervious concrete is prepared using regeneration aggregate, the utilization rate of building waste on the one hand can be improved, promoted solid
The recycling of body discarded object, on the other hand can apply to urban road, square, and rainwater is reduced into underground water, reduce
Municipal drainage pressure, solves urban waterlogging, improves urban ecological environment, the livable level in city is improved, if adopted in sponge city
With regeneration aggregate, the feature of environmental protection in city can also be greatly improved.
The content of the invention
It is an object of the invention to provide a kind of sponge urban environmental protection regeneration aggregate pervious concrete and preparation method thereof, its
Modified activated carbon composite element nano material, the wood powder of activation process and isotactic polypropylene are combined, by coupling agent and compatilizer
Surface modifying function, forms unique flexibilizer additive, has with its obtained high-strength and high-ductility regenerated aggregate concrete very high
Water penetration, be adapted to sponge city use.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of sponge urban environmental protection regeneration aggregate pervious concrete, its is raw materials used to include by weight：Cement 320-
360 parts, 40-80 parts of lithium ground-slag, ultra-fine microballon 20-30 parts, silicon ash 20-40 parts, regenerated coarse aggregate 700-900 parts, natural thick bone
400-500 parts of material, water reducer 3-4 parts, water 100-120 parts, polyacrylate 10-20 parts, adhesive 10-20 parts, toughness reinforcing addition
Agent 20-30 parts, triethanolamine 1-1.2 parts, sodium gluconate 0.05-0.1 parts, conserving material 5-10 parts.
The average grain diameter of the lithium ground-slag is 4.0-6.6 μm；
Specific surface area >=the 1600m of the silicon ash2/kg；
The water reducer is commercially available naphthalene series high-efficiency water-reducing agent, and its water-reducing rate is 18-24%；
The ultra-fine microballon is the hollow glass micropearl that will be sorted out from flyash through mechanical crushing into light gray toner
End, its density is 2.49g/cm3, specific surface area is 1200m2/kg；
The regenerated coarse aggregate be by waste and old concrete through broken, sorting, screening, cleaning, dry after, then screen out diameter
The particle of 6mm-12mm, obtains final product the regenerated coarse aggregate；
The adhesive is polyvinyl acetate；
The conserving material is conserving material in starch-grafted Anionic-nonionic group, and its structural formula is as follows：
。
The preparation method of the flexibilizer additive is comprised the following steps：
1) coupling agent is added to the water into stirring at room temperature to be completely dissolved to it；It is subsequently adding modified activated carbon composite element nanometer material
The wood powder of material and activation process, stirs 3 h, then be warming up to 55-57 DEG C of 24 h of stirring, filtering, gained after the h of room temperature ultrasonic disperse 2
Powder is placed in industrial centrifugal machine, and 20 min are centrifuged with 450 r/min, and 20h is vacuum dried at 50-52 DEG C；
2) by isotactic polypropylene, filler and step 1) obtained in powder be fitted into high-speed mixer, in 320-350 r/min
113-115 DEG C is warming up to after disperseing 2-3 h under rotating speed, compatilizer is added, 16-20 is disperseed under 500-550 r/min rotating speeds
After min, cooling in cold mixing pot is put into, blowing when temperature drops to 48-50 DEG C obtains just batch mixing；
3) 0.5- will be kneaded in the gained double screw extruder that just batch mixing is placed in 172-180 DEG C, rotating speed is 65-75 r/min
Extruded after 1 h, obtain mixing materials；
4) by gained mixing materials pulverization process, the concrete additive that granularity is 80-160 mesh is obtained；
Each raw material used is calculated as by weight：Modified 1-2 parts of nano material of activated carbon composite element, the wood powder 35-40 of activation process
Part, isotactic polypropylene 18-23 parts, water 100-150 parts, coupling agent 2.5-3.5 parts, filler 3-5 parts, compatilizer 2.2-3.2 parts.
The preparation method of the modified activated carbon composite element nano material comprises the following steps：
1）Be respectively charged into two L nylon ball grinders of identical 6 62 a diameter of 5 mm stainless steel ball and 46 it is straight
Footpath is the stainless steel ball of 10 mm, is then respectively adding 1.4 kg by graphite powder and CNT in mass ratio 1.5:1 composition answer
Carbon material is closed, then 120 mL absolute ethyl alcohols are added dropwise respectively, sealed with nylon lid, two ball grinders are symmetrically put into ball mill
In, the h of ball-milling treatment 60 under conditions of rotating speed is 500 rpm and every 30 min automatic conversions direction of rotation；
2）By step 1）It is the water of Tween 40 that 8, mass concentration is 16% that compound carbon material after treatment is added to pH value
In solution, ultrasonic 15 h, filtering, gained filter residue is washed after being vacuum dried 20 h at 60-62 DEG C；
3）By step 2）Compound carbon material after treatment is added in the HCl solution that concentration is 2 M, ultrasonic 36 h, mistake
Filter, gained filter residue pure water is cleaned after being vacuum dried 24 h at 70-72 DEG C；
4）By step 3）Compound carbon material after treatment is added to 40 L by the concentrated sulfuric acid and concentrated nitric acid by volume 9.5:
In the nitration mixture of 0.5 composition, after ultrasonically treated 10 h at 5-6 DEG C, 2.8 kg potassium permanganate and 0.9 kg sodium nitrate are added, in 4-
24 h are stirred at 5 DEG C；38-40 DEG C is then heated to, 12 h are stirred, then 60 is slowly added under agitation, in 1.5 h
L water, then it is warming up to 90-92 DEG C of 15 h of continuation stirring；Then 85 L water are slowly added under agitation, in 1.5 h, finally
Under agitation, 4.5 L hydrogen peroxide are slowly added in 3 h, continue to be filtered after stirring 16 h, gained filter residue is washed, 75
24 h are vacuum dried at DEG C, 2.32-2.55 kg taupe activated carbon composite element nano material is obtained；
5）Take step 4）Gained activated carbon composite element nano material 2.2 kg, is added in 20 L thionyl chlorides, 78-80 DEG C,
24-36 h are reacted under stirring condition, then with 4500-5000 rpm centrifugal treating 10-15 min, thionyl chloride, gained is separated
Powder is cleaned through anhydrous tetrahydro furan, and is vacuum dried 6 h at room temperature；Powder is added in 12 L organic solvent As again, room
After ultrasonic 2 h of temperature, 3 h of stirring, under 48-50 DEG C, stirring condition, 3 L are slowly added dropwise in 15-18 h and are dissolved with 0.7 kg bis-
The organic solvent B of first alcoholic compound, completion of dropping continues to stir 10 h after 55-57 DEG C；Then heat to 103-105 DEG C of stirring
20 h, then after being warming up to 150-152 DEG C of stirring 18-22 h, organic solvent is reclaimed in vacuum distillation, and gained powder is cleaned through ethanol
Afterwards, 60-65 h are vacuum dried at 53-55 DEG C, the activated carbon composite element nano material of 2.43-2.66 kg hydroxyl functional groups is obtained；
6）Take step 5）The activated carbon composite element kg of nano material 2.4 of gained hydroxyl functional group, is added to 35 L chloroforms
In, under nitrogen protection after ultrasonically treated 2 h of room temperature, it is subsequently adding 100 mL boron trifluoride-ether complex and is stirred at room temperature 2
h；Again under -7 ~ -8 DEG C, stirring condition, 550 mL 3- methyl -3- oxetane methanols are slowly added dropwise in 5 h, dripped
Finish and continue to stir 30 h after -7 ~ -8 DEG C；500 mL absolute ethyl alcohols are eventually adding, with 4600-5000 rpm centrifugal treatings 15-18
Min, separates and recovers solvent, and gained powder is cleaned through absolute ethyl alcohol, and is vacuum dried 12 h at room temperature, obtains 2.74-2.83
Be modified activated carbon composite element nano material described in kg；
Wherein, the graphite powder is commercially available high pure and ultra-fine graphite powder or natural single crystal graphite powder；
The CNT is commercially available multiple-wall carbon nanotube；
The hydrogen peroxide is aqueous hydrogen peroxide solution that commercial concentration is 35%；
The organic solvent A is through the dry N-methylpyrrolidone or N of dried process, N '-dimethyl acetamide；
The organic solvent B is the N '-dimethyl acetamide by volume 1 by through the anhydrous propanone and N of dried process:9 groups
Into mixed solvent；
The diatomic alcohol compounds are 1,6-HD, 1,8- ethohexadiols, 1,10- decanediols or l, 5- pentanediol.
The wood powder of the activation process is for the wood powder of 90-200 mesh is 15% in 180 L, mass concentration by 75 kg, particle diameter
Sodium hydrate aqueous solution in stir 12h after filter, gained wood powder washed with water to neutrality；Then by gained wood powder in 120 L, matter
Amount concentration be 12% aqueous hydrogen peroxide solution in stir 18h after filter, gained wood powder washes, and is dried at 65-67 DEG C
12h is obtained final product.
The coupling agent is commercially available A-151 or A-171 silane couplers；
Described filler is precipitated calcium carbonate, and its particle diameter is 1-30 μm；
The compatilizer is maleic anhydride graft copolymer.
The preparation method of the sponge urban environmental protection regeneration aggregate pervious concrete be by cement, lithium ground-slag, ultra-fine microballon,
Silicon ash, regenerated coarse aggregate, natural coarse aggregate, polyacrylate, flexibilizer additive mix in proportion, and stirring 20-30 s make each powder
Material is well mixed, then puts into water reducer and adhesive and stir 30-40s, then by triethanolamine, sodium gluconate, conserving material with
Water is added in mixer simultaneously, and stirring 15-20min obtains final product the sponge urban environmental protection regeneration aggregate pervious concrete.
Compared with the prior art, technical scheme has the advantages that：
The present invention is employed a kind of " modified activated carbon composite element nano material " first.The material with graphite powder and CNT this
Based on two kinds of carbon materials, activated carbon composite element nano material is prepared by steps such as ball milling, ultrasound, nitration mixture oxidations first.It is multiple
The graphite flake and the CNT of one-dimentional structure of the two-dimensional structure comprising a large amount of excellent in mechanical performance in charcoal element nano material are closed, is
A kind of ideal concrete toughness reinforcing reinforcing material.But the specific surface area of activated carbon composite element nano material is big, and specific surface energy is high,
Easily agglomerate into block aggregation and lose its excellent mechanical property, the present invention further enters to activated carbon composite element nano material
Row chemical modification, in its surface construction branched polymer structure, to significantly increase the repulsive interaction between charcoal element nano material, from
And prepare modified activated carbon composite element nano material.This modified activated carbon composite element nano material can not only fill in concrete system
Dispersion, preferably plays the coordination plasticizing effect of material.Secondly, wood powder cost is relatively low, wide material sources, easy to process and environment
Close friend, the present invention by the activated treatment of natural macromolecular material wood powder, make in its strand containing it is a large amount of have it is very strong hydrophilic
Property hydroxyl reactive group, the phase can with the hydrated product during concrete formation formed hydrogen bond equimolecular intermolecular forces, from
And improve the microstress strain property of concrete.
The present invention is using modified activated carbon composite element nano material, the wood powder of activation process, isotactic polypropylene, coupling agent, filler
And compatilizer, prepare a kind of flexibilizer additive.The flexibilizer additive preparation condition is readily satisfied, and raw material is easily obtained, and is held
Easily disperse to combine with other component materials in concrete, effectively the effect of performance material coordination plasticizing, and regeneration aggregate, lithium slag
The use of the materials such as powder, substantially increases the environmental-protecting performance in sponge city, has good toughness with its concrete for preparing, resists
Fatigability and isotropism.Meanwhile, composite toughening increased the toughness of regenerated aggregate concrete, the concrete for preparing 28 days
Compression strength can reach 30-60MPa, be a kind of high-strength and high-ductility regenerated aggregate concrete, and it has water penetration very high,
It is adapted to sponge city to use.
Specific embodiment
In order that content of the present invention easily facilitates understanding, with reference to specific embodiment to of the present invention
Technical scheme is described further, but the present invention is not limited only to this.
Specific surface area >=the 1600m of silicon ash used2/kg；
Water reducer used is commercially available naphthalene series high-efficiency water-reducing agent, and its water-reducing rate is 18-24%；
Ultra-fine microballon used is the hollow glass micropearl that will be sorted out from flyash through mechanical crushing into light gray toner
End, its density is 2.49g/cm3, specific surface area is 1200m2/kg；
Regenerated coarse aggregate used be by waste and old concrete through broken, sorting, screening, cleaning, dry after, then screen out diameter
The particle of 6mm-12mm, obtains final product the regenerated coarse aggregate；
Adhesive used is polyvinyl acetate；
Conserving material used is conserving material in starch-grafted Anionic-nonionic group, and its structural formula is：
。
High pure and ultra-fine graphite powder used is the dark gray powder of 900-1000 mesh, its main physical and chemical indexes：Fixed carbon content：
99.9 %, density：2.1 g/cm3, crystal particle diameter：0.1 mm, scale size：1 mm, moisture：0.02 %；
Natural single crystal graphite powder used is the black powder of 100-260 mesh, its main physical and chemical indexes：Fixed carbon content：90
%, density：1 g/cm3, crystal particle diameter：0.2 mm, scale size：1 mm, Mohs' hardness：32, moisture：0.01 %；
The main specifications index of multiple-wall carbon nanotube used：Purity：>95%；Caliber：60-100 nm；Length：8-35 um；
Bulk density：0.16-0.21 g/cm3；Specific surface area：>35 (m2/g)；
Tween used 40 (CAS No. 9005-66-7) is commercially available amber oily liquids, and its main materialization refers to
Mark：HLB value：15.5；Hydroxyl value (KOHmg/g)：85-100；Saponification number (KOHmg/g)：40-55；Acid number (KOHmg/g)：≤2.0；
Moisture content (%)：≤2.5；
Organic solvent B used is the N '-dimethyl acetamide by volume 1 by through the anhydrous propanone and N of dried process:9 groups
Into mixed solvent；
Coupling agent used is from the commercially available A-151 or A-171 silane couplers in union carbide corporation of the U.S.；
From Saudi Arabia Ba Su, your trade mark is the flexibilized grade maleic anhydride inoculated polypropylene copolymer of 350K to compatilizer used, its
Outward appearance is white particle, its leading indicator：Maleic anhydride grafts：0.7-0.9%；Melt index (MI) (190 DEG C, 2.16kg)：>
85g/10min；
The melt flow rate (MFR) of isotactic polypropylene used：6 g/10min（230 DEG C, 2.16kg）；Density：1.12 g/cm3；
Identation hardness：125MPa；IZOD impact strengths：10 J/m（23 DEG C 1/4 " thick）；Tensile strength：105 MPa；Bending strength：
145MPa；Heat distortion temperature：162℃（0.45MPa, it is unannealed）.
Embodiment 1
1. the preparation of the activated carbon composite element nano material that is modified：
1）Be respectively charged into two L nylon ball grinders of identical 6 62 a diameter of 5 mm stainless steel ball and 46 it is straight
Footpath is the stainless steel ball of 10 mm, is then respectively adding 1.4 kg by natural single crystal graphite powder and multiple-wall carbon nanotube in mass ratio
1.5:The compound carbon material of 1 composition, then 120 mL absolute ethyl alcohols are added dropwise respectively, sealed with nylon lid, by two ball grinders pair
Title is put into ball mill, the ball-milling treatment 60 under conditions of rotating speed is 500 rpm and every 30 min automatic conversions direction of rotation
h；
2）By step 1）It is the water of Tween 40 that 8, mass concentration is 16% that compound carbon material after treatment is added to pH value
In solution, ultrasonic 15 h, filtering, gained filter residue is washed after being vacuum dried 20 h at 62 DEG C；
3）By step 2）Compound carbon material after treatment is added in the HCl solution that concentration is 2 M, ultrasonic 36 h, mistake
Filter, gained filter residue pure water is cleaned after being vacuum dried 24 h at 71 DEG C；
4）By step 3）Compound carbon material after treatment is added to 40 L by the concentrated sulfuric acid and concentrated nitric acid by volume 9.5:
In the nitration mixture of 0.5 composition, after ultrasonically treated 10 h at 6 DEG C, 2.8 kg potassium permanganate and 0.9 kg sodium nitrate are added, at 4 DEG C
24 h of lower stirring；39 DEG C are then heated to, 12 h are stirred, 60 L water are then slowly added under agitation, in 1.5 h,
90 DEG C are warming up to again to continue to stir 15 h；Then 85 L water are slowly added under agitation, in 1.5 h, finally in stirring
Under, be slowly added to the aqueous hydrogen peroxide solution that 4.5 L, mass concentration are 35% in 3 h, continue to be filtered after stirring 16 h, gained
Filter residue is washed, and 24 h are vacuum dried at 75 DEG C, obtains 2.32 kg taupe activated carbon composites element nano material；
5）Take step 4）Gained activated carbon composite element nano material 2.2 kg, is added in 20 L thionyl chlorides, 80 DEG C, stir
24 h are reacted under the conditions of mixing, then with the min of 4600 rpm centrifugal treatings 10, thionyl chloride is separated, gained powder is through anhydrous tetrahydrochysene
Furans is cleaned, and is vacuum dried 6 h at room temperature；Powder is added to anhydrous Ns of 12 L through dried process, N '-dimethyl again
In acetamide, after 2 h of room temperature ultrasound, 3 h of stirring, under 48 DEG C, stirring condition, 3 L are slowly added dropwise in 15 h and are dissolved with 0.7
The organic solvent B of kg 1,8- ethohexadiol, completion of dropping continues to stir 10 h after 57 DEG C；Then heat to 103 DEG C of stirrings 20
H, then be warming up to 150 DEG C stirring 18 h after, vacuum distillation reclaim organic solvent, gained powder through ethanol clean after, at 53 DEG C
60 h are vacuum dried, the activated carbon composite element nano material of 2.43 kg hydroxyl functional groups is obtained；
6）Take step 5）The activated carbon composite element kg of nano material 2.4 of gained hydroxyl functional group, is added to 35 L chloroforms
In, under nitrogen protection after ultrasonically treated 2 h of room temperature, it is subsequently adding 100 mL boron trifluoride-ether complex and is stirred at room temperature 2
h；Again under -8 DEG C, stirring condition, 550 mL 3- methyl -3- oxetane methanols, completion of dropping are slowly added dropwise in 5 h
Continue to stir 30 h after -8 DEG C；500 mL absolute ethyl alcohols are eventually adding, with the min of 4600 rpm centrifugal treatings 15, separation and recovery
Solvent, gained powder is cleaned through absolute ethyl alcohol, and is vacuum dried 12 h at room temperature, obtains the activated carbon composite that is modified described in 2.74 kg
Plain nano material.
2. the preparation of the wood powder of activation process：It is 15% in 180 L, mass concentration by the wood powder that 75 kg, particle diameter are 90 mesh
Sodium hydrate aqueous solution in stir 12h after filter, gained wood powder washed with water to neutrality；Then by gained wood powder in 120 L, matter
Amount concentration be 12% aqueous hydrogen peroxide solution in stir 18h after filter, gained wood powder washed, and 12h is dried at 67 DEG C
Obtain final product.
3. the preparation of flexibilizer additive：
1) will be stirred to it in the kg of A-171 silane couplers 2.5 100 kg water of addition at room temperature and be completely dissolved；Then
The wood powder of the modified activated carbon composite element nano materials of 1 kg and 35 kg activation process is added, 3 h is stirred after the h of room temperature ultrasonic disperse 2,
57 DEG C of 24 h of stirring are warming up to again, and filtering, gained powder is placed in industrial centrifugal machine, and 20 min are centrifuged with 450 r/min, then at
20h is vacuum dried at 50 DEG C；
2) by 18 kg isotactic polypropylene, 3 kg precipitated calcium carbonates（1-30 μm of particle diameter）With step 1) obtained in powder load
In high-speed mixer, 113 DEG C are warming up to after disperseing 2.5 h under 320 r/min rotating speeds, 2.2 kg compatilizers are added, 500
After disperseing 16 min under r/min rotating speeds, cooling in cold mixing pot is put into, blowing when temperature drops to 48 DEG C obtains just batch mixing；
3) extruded after 0.5h being kneaded in the gained double screw extruder that just batch mixing is placed in 172 DEG C, rotating speed is 65 r/min,
Obtain mixing materials；
4) by gained mixing materials pulverization process, the concrete additive that 56.8 kg granularities are 80 mesh is obtained.
4. the preparation of regeneration aggregate pervious concrete：By 32 kg cement, 4 kg lithiums ground-slags, the ultra-fine microballons of 2 kg, 2 kg
Silicon ash, 70 kg regenerated coarse aggregates, 40 kg natural coarse aggregates, 1 kg polyacrylate, 2 kg flexibilizer additives mix in proportion,
Stirring 20 s is well mixed each powder, then puts into 0.3 kg water reducers and 1 kg adhesives and stir 30s, then by the second of 0.1 kg tri-
Hydramine, 5 kg sodium gluconates, 0.5 kg conserving materials and 10 kg water are added in mixer simultaneously, and stirring 15min obtains final product described
Sponge urban environmental protection regeneration aggregate pervious concrete.
28 days compression strength of regeneration aggregate pervious concrete obtained in the present embodiment is 60.7MPa, and cleavage strength is
4.98MPa, coefficient of permeability（25℃）It is 3.5mm/s；Continuous porosity is 12.8%；Compression strength loss after 25 Frozen-thawed cycleds
Rate is 14.6 %.
Embodiment 2
1. the preparation of the activated carbon composite element nano material that is modified：
1）Be respectively charged into two L nylon ball grinders of identical 6 62 a diameter of 5 mm stainless steel ball and 46 it is straight
Footpath is the stainless steel ball of 10 mm, is then respectively adding 1.4 kg by high pure and ultra-fine graphite powder and multiple-wall carbon nanotube in mass ratio
1.5:The compound carbon material of 1 composition, then 120 mL absolute ethyl alcohols are added dropwise respectively, sealed with nylon lid, by two ball grinders pair
Title is put into ball mill, the ball-milling treatment 60 under conditions of rotating speed is 500 rpm and every 30 min automatic conversions direction of rotation
h；
2）By step 1）It is the water of Tween 40 that 8, mass concentration is 16% that compound carbon material after treatment is added to pH value
In solution, ultrasonic 15 h, filtering, gained filter residue is washed after being vacuum dried 20 h at 62 DEG C；
3）By step 2）Compound carbon material after treatment is added in the HCl solution that concentration is 2 M, ultrasonic 36 h, mistake
Filter, gained filter residue pure water is cleaned after being vacuum dried 24 h at 72 DEG C；
4）By step 3）Compound carbon material after treatment is added to 40 L by the concentrated sulfuric acid and concentrated nitric acid by volume 9.5:
In the nitration mixture of 0.5 composition, after ultrasonically treated 10 h at 5 DEG C, 2.8 kg potassium permanganate and 0.9 kg sodium nitrate are added, at 5 DEG C
24 h of lower stirring；38 DEG C are then heated to, 12 h are stirred, 60 L water are then slowly added under agitation, in 1.5 h,
92 DEG C are warming up to again to continue to stir 15 h；Then 85 L water are slowly added under agitation, in 1.5 h, finally in stirring
Under, be slowly added to the aqueous hydrogen peroxide solution that 4.5 L, mass concentration are 35% in 3 h, continue to be filtered after stirring 16 h, gained
Filter residue is washed, and 24 h are vacuum dried at 75 DEG C, obtains 2.39 kg taupe activated carbon composites element nano material；
5）Take step 4）Gained activated carbon composite element nano material 2.2 kg, is added in 20 L thionyl chlorides, 80 DEG C, stir
36 h are reacted under the conditions of mixing, then with the min of 4800 rpm centrifugal treatings 13, thionyl chloride is separated, gained powder is through anhydrous tetrahydrochysene
Furans is cleaned, and is vacuum dried 6 h at room temperature；Powder is added to anhydrous Ns of 12 L through dried process, N '-dimethyl again
In acetamide, after 2 h of room temperature ultrasound, 3 h of stirring, under 49 DEG C, stirring condition, 3 L are slowly added dropwise in 17 h and are dissolved with 0.7
The organic solvent B of kg 1,10- decanediol, completion of dropping continues to stir 10 h after 55 DEG C；Then heat to 103 DEG C of stirrings 20
H, then be warming up to 151 DEG C stirring 21 h after, vacuum distillation reclaim organic solvent, gained powder through ethanol clean after, at 54 DEG C
64 h are vacuum dried, the activated carbon composite element nano material of 2.54 kg hydroxyl functional groups is obtained；
6）Take step 5）The activated carbon composite element kg of nano material 2.4 of gained hydroxyl functional group, is added to 35 L chloroforms
In, under nitrogen protection after ultrasonically treated 2 h of room temperature, it is subsequently adding 100 mL boron trifluoride-ether complex and is stirred at room temperature 2
h；Again under -7 DEG C, stirring condition, 550 mL 3- methyl -3- oxetane methanols, completion of dropping are slowly added dropwise in 5 h
Continue to stir 30 h after -7 DEG C；500 mL absolute ethyl alcohols are eventually adding, with the min of 4700 rpm centrifugal treatings 16, separation and recovery
Solvent, gained powder is cleaned through absolute ethyl alcohol, and is vacuum dried 12 h at room temperature, obtains the activated carbon composite that is modified described in 2.81 kg
Plain nano material.
2. the preparation of the wood powder of activation process：It is in 180 L, mass concentration by the wood powder that 75 kg, particle diameter are 180 mesh
Filtered after 12h is stirred in 15% sodium hydrate aqueous solution, gained wood powder is washed with water to neutrality；Then by gained wood powder 120
L, mass concentration be 12% aqueous hydrogen peroxide solution in stir 18h after filter, gained wood powder washes, and is done at 66 DEG C
Dry 12h is obtained final product.
3. the preparation of flexibilizer additive：
1) will be stirred to it in the kg of A-151 silane couplers 3.2 140 kg water of addition at room temperature and be completely dissolved；Then
The wood powder of the modified activated carbon composite element nano materials of 1.7kg and 36 kg activation process is added, 3 h is stirred after the h of room temperature ultrasonic disperse 2,
56 DEG C of 24 h of stirring are warming up to again, and filtering, gained powder is placed in industrial centrifugal machine, and 20 min are centrifuged with 450 r/min, then at
20h is vacuum dried at 51 DEG C；
2) by 21 kg isotactic polypropylene, 4.3 kg precipitated calcium carbonates（1-30 μm of particle diameter）With step 1) obtained in powder dress
Enter in high-speed mixer, 114 DEG C are warming up to after disperseing 2 h under 330 r/min rotating speeds, 3 kg compatilizers are added, 550
After disperseing 17 min under r/min rotating speeds, cooling in cold mixing pot is put into, blowing when temperature drops to 48 DEG C obtains just batch mixing；
3) squeezed after 0.5 h being kneaded in the gained double screw extruder that just batch mixing is placed in 178 DEG C, rotating speed is 72 r/min
Go out, obtain mixing materials；
4) by gained mixing materials pulverization process, the concrete additive that 65.4 kg granularities are 100 mesh is obtained.
4. the preparation of regeneration aggregate pervious concrete：By 34 kg cement, 6 kg lithiums ground-slags, the ultra-fine microballons of 2.5 kg, 3
Kg silicon ashes, 80 kg regenerated coarse aggregates, 45 kg natural coarse aggregates, 1 kg polyacrylate, 2.5 kg flexibilizer additives are in proportion
Mixing, 25 s of stirring are well mixed each powder, then put into 0.4 kg water reducers and 1 kg adhesives and stir 35s, then by 0.11
Kg triethanolamines, 8 kg sodium gluconates, 0.8 kg conserving materials and 11 kg water are added in mixer simultaneously, and stirring 18min is
Obtain the sponge urban environmental protection regeneration aggregate pervious concrete.
28 days compression strength of regeneration aggregate pervious concrete obtained in the present embodiment is 59.7MPa, and cleavage strength is
4.86MPa, coefficient of permeability（25℃）It is 3.0mm/s；Continuous porosity is 11.8%；Compression strength loss after 25 Frozen-thawed cycleds
Rate is 14 %.
Embodiment 3
1. the preparation of the activated carbon composite element nano material that is modified：
1）Be respectively charged into two L nylon ball grinders of identical 6 62 a diameter of 5 mm stainless steel ball and 46 it is straight
Footpath is the stainless steel ball of 10 mm, is then respectively adding 1.4 kg by high pure and ultra-fine graphite powder and multiple-wall carbon nanotube in mass ratio
1.5:The compound carbon material of 1 composition, then 120 mL absolute ethyl alcohols are added dropwise respectively, sealed with nylon lid, by two ball grinders pair
Title is put into ball mill, the ball-milling treatment 60 under conditions of rotating speed is 500 rpm and every 30 min automatic conversions direction of rotation
h；
2）By step 1）It is the water of Tween 40 that 8, mass concentration is 16% that compound carbon material after treatment is added to pH value
In solution, ultrasonic 15 h, filtering, gained filter residue is washed after being vacuum dried 20 h at 60 DEG C；
3）By step 2）Compound carbon material after treatment is added in the HCl solution that concentration is 2 M, ultrasonic 36 h, mistake
Filter, gained filter residue pure water is cleaned after being vacuum dried 24 h at 72 DEG C；
4）By step 3）Compound carbon material after treatment is added to 40 L by the concentrated sulfuric acid and concentrated nitric acid by volume 9.5:
In the nitration mixture of 0.5 composition, after ultrasonically treated 10 h at 5 DEG C, 2.8 kg potassium permanganate and 0.9 kg sodium nitrate are added, at 5 DEG C
24 h of lower stirring；38 DEG C are then heated to, 12 h are stirred, 60 L water are then slowly added under agitation, in 1.5 h,
92 DEG C are warming up to again to continue to stir 15 h；Then 85 L water are slowly added under agitation, in 1.5 h, finally in stirring
Under, be slowly added to the aqueous hydrogen peroxide solution that 4.5 L, mass concentration are 35% in 3 h, continue to be filtered after stirring 16 h, gained
Filter residue is washed, and 24 h are vacuum dried at 75 DEG C, obtains 2.55 kg taupe activated carbon composites element nano material；
5）Take step 4）Gained activated carbon composite element nano material 2.2 kg, is added in 20 L thionyl chlorides, 78 DEG C, stir
30 h are reacted under the conditions of mixing, then with the min of 4500 rpm centrifugal treatings 12, thionyl chloride is separated, gained powder is through anhydrous tetrahydrochysene
Furans is cleaned, and is vacuum dried 6 h at room temperature；Powder is added to anhydrous N-methyl pyrrolidines of 12 L through dried process again
In ketone, after 2 h of room temperature ultrasound, 3 h of stirring, under 50 DEG C, stirring condition, 3 L are slowly added dropwise in 16 h and are dissolved with 0.7 kg
The organic solvent B of 1,6- hexylene glycol, completion of dropping continues to stir 10 h after 55 DEG C；104 DEG C of 20 h of stirring are then heated to, then
After being warming up to 152 DEG C of 20 h of stirring, organic solvent is reclaimed in vacuum distillation, after gained powder is cleaned through ethanol, the vacuum at 55 DEG C
63 h are dried, the activated carbon composite element nano material of 2.49 kg hydroxyl functional groups is obtained；
6）Take step 5）The activated carbon composite element kg of nano material 2.4 of gained hydroxyl functional group, is added to 35 L chloroforms
In, under nitrogen protection after ultrasonically treated 2 h of room temperature, it is subsequently adding 100 mL boron trifluoride-ether complex and is stirred at room temperature 2
h；Again under -7 DEG C, stirring condition, 550 mL 3- methyl -3- oxetane methanols, completion of dropping are slowly added dropwise in 5 h
Continue to stir 30 h after -7 DEG C；500 mL absolute ethyl alcohols are eventually adding, with the min of 4800 rpm centrifugal treatings 17, separation and recovery
Solvent, gained powder is cleaned through absolute ethyl alcohol, and is vacuum dried 12 h at room temperature, obtains the activated carbon composite that is modified described in 2.76 kg
Plain nano material.
2. the preparation of the wood powder of activation process：It is in 180 L, mass concentration by the wood powder that 75 kg, particle diameter are 120 mesh
Filtered after 12h is stirred in 15% sodium hydrate aqueous solution, gained wood powder is washed with water to neutrality；Then by gained wood powder 120
L, mass concentration be 12% aqueous hydrogen peroxide solution in stir 18h after filter, gained wood powder washes, and is done at 65 DEG C
Dry 12h is obtained final product.
3. the preparation of flexibilizer additive：
1) will be stirred to it in the kg of A-151 silane couplers 2.9 120 kg water of addition at room temperature and be completely dissolved；Then
The wood powder of the modified activated carbon composite element nano materials of 1.4 kg and 37 kg activation process is added, 3 are stirred after the h of room temperature ultrasonic disperse 2
H, then 55 DEG C of 24 h of stirring are warming up to, filtering, gained powder is placed in industrial centrifugal machine, and 20 min are centrifuged with 450 r/min, then
In being vacuum dried 20h at 52 DEG C；
2) by 20 kg isotactic polypropylene, 4 kg precipitated calcium carbonates（1-30 μm of particle diameter）With step 1) obtained in powder load
In high-speed mixer, 115 DEG C are warming up to after disperseing 2.5 h under 340 r/min rotating speeds, 2.8 kg compatilizers are added, 530
After disperseing 18 min under r/min rotating speeds, cooling in cold mixing pot is put into, blowing when temperature drops to 50 DEG C obtains just batch mixing；
3) extruded after 1 h being kneaded in the gained double screw extruder that just batch mixing is placed in 175 DEG C, rotating speed is 70 r/min,
Obtain mixing materials；
4) by gained mixing materials pulverization process, the concrete additive that 64.9 kg granularities are 120 mesh is obtained.
4. the preparation of regeneration aggregate pervious concrete：By 36 kg cement, 8 kg lithiums ground-slags, the ultra-fine microballons of 3 kg, 4 kg
Silicon ash, 90 kg regenerated coarse aggregates, 50 kg natural coarse aggregates, 2 kg polyacrylate, 3 kg flexibilizer additives mix in proportion,
Stirring 30 s is well mixed each powder, then puts into 0.4 kg water reducers and 2 kg adhesives and stir 40s, then by 0.12 kg tri-
Monoethanolamine, 10 kg sodium gluconates, 1.0 kg conserving materials and 12 kg water are added in mixer simultaneously, and stirring 20min is obtained final product
The sponge urban environmental protection regeneration aggregate pervious concrete.
28 days compression strength of regeneration aggregate pervious concrete obtained in the present embodiment is 58.3MPa, and cleavage strength is
4.71MPa, coefficient of permeability（25℃）It is 3.2mm/s；Continuous porosity is 11.6%；Compression strength loss after 25 Frozen-thawed cycleds
Rate is 14.3%.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent with
Modification, should all belong to covering scope of the invention.
Claims (4)
1. a kind of sponge urban environmental protection regeneration aggregate pervious concrete, it is characterised in that：It is raw materials used to include by weight：Water
Mud 320-360 parts, 40-80 parts of lithium ground-slag, ultra-fine microballon 20-30 parts, silicon ash 20-40 parts, regenerated coarse aggregate 700-900 parts, day
Right 400-500 parts of coarse aggregate, water reducer 3-4 parts, water 100-120 parts, polyacrylate 10-20 parts, adhesive 10-20 parts, increasing
Tough additive 20-30 parts, triethanolamine 1-1.2 parts, sodium gluconate 0.05-0.1 parts, conserving material 5-10 parts；
The adhesive is polyvinyl acetate；
The conserving material is conserving material in starch-grafted Anionic-nonionic group, and its structural formula is as follows：
；
The preparation method of the flexibilizer additive is comprised the following steps：
1) coupling agent is added to the water into stirring at room temperature to be completely dissolved to it；Be subsequently adding modified activated carbon composite element nano material and
The wood powder of activation process, stirs 3 h, then be warming up to 55-57 DEG C of 24 h of stirring, filtering, gained powder after the h of room temperature ultrasonic disperse 2
20 min are centrifuged with 450 r/min, 20h is vacuum dried at 50-52 DEG C；
2) by isotactic polypropylene, filler and step 1) obtained in powder be fitted into high-speed mixer, in 320-350 r/min rotating speeds
113-115 DEG C is warming up to after lower dispersion 2-3 h, compatilizer is added, 16-20 min are disperseed under 500-550 r/min rotating speeds
Afterwards, cooling in cold mixing pot is put into, blowing when temperature drops to 48-50 DEG C obtains just batch mixing；
3) 0.5-1 h will be kneaded in the gained double screw extruder that just batch mixing is placed in 172-180 DEG C, rotating speed is 65-75 r/min
After extrude, obtain mixing materials；
4) by gained mixing materials pulverization process, the flexibilizer additive that granularity is 80-160 mesh is obtained；
Each raw material used is calculated as by weight：Modified 1-2 parts of nano material of activated carbon composite element, wood powder 35-40 parts of activation process, etc.
Isotactic polypropylene 18-23 parts, water 100-150 parts, coupling agent 2.5-3.5 parts, filler 3-5 parts, compatilizer 2.2-3.2 parts；
The compatilizer is maleic anhydride graft copolymer；
The preparation method of the modified activated carbon composite element nano material comprises the following steps：
1）Be respectively charged into two L nylon ball grinders of identical 6 62 a diameter of 5 mm stainless steel ball and 46 it is a diameter of
The stainless steel ball of 10 mm, is then respectively adding 1.4 kg by graphite powder and CNT in mass ratio 1.5:The activated carbon composite of 1 composition
Cellulosic material, then 120 mL absolute ethyl alcohols are added dropwise respectively, sealed with nylon lid, two ball grinders are symmetrically put into ball mill,
Rotating speed is the h of ball-milling treatment 60 under conditions of 500 r/min and every 30 min automatic conversions direction of rotation；
2）By step 1）It is the aqueous solution of Tween 40 that 8, mass concentration is 16% that compound carbon material after treatment is added to pH value
In, ultrasonic 15 h, filtering, gained filter residue is washed after being vacuum dried 20 h at 60-62 DEG C；
3）By step 2）Compound carbon material after treatment is added in the HCl solution that concentration is 2 M, ultrasonic 36 h, filtering, institute
Filter residue pure water is cleaned after being vacuum dried 24 h at 70-72 DEG C；
4）By step 3）Compound carbon material after treatment is added to 40 L by the concentrated sulfuric acid and concentrated nitric acid by volume 9.5:0.5 group
Into nitration mixture in, after ultrasonically treated 10 h at 5-6 DEG C, add 2.8 kg potassium permanganate and 0.9 kg sodium nitrate, at 4-5 DEG C
Stir 24 h；38-40 DEG C is then heated to, 12 h are stirred, 60 L water is then slowly added under agitation, in 1.5 h,
90-92 DEG C is warming up to again to continue to stir 15 h；Then 85 L water are slowly added under agitation, in 1.5 h, are finally being stirred
Mix down, 4.5 L hydrogen peroxide are slowly added in 3 h, continue to be filtered after stirring 16 h, gained filter residue is washed, at 75 DEG C
24 h are vacuum dried, 2.32-2.55 kg taupe activated carbon composite element nano material is obtained；
5）Take step 4）The gained activated carbon composite element kg of nano material 2.2, is added in 20 L thionyl chlorides, in 78-80 DEG C, stirring
Under the conditions of react 24-36 h, then with 4500-5000 r/min centrifugal treating 10-15 min, gained powder is through anhydrous tetrahydrochysene furan
Mutter clean, and be vacuum dried 6 h at room temperature；Powder is added in 12 L organic solvent As again, 2 h of room temperature ultrasound, stirring 3
After h, under 48-50 DEG C, stirring condition, 3 L are slowly added dropwise in 15-18 h and are dissolved with the organic of 0.7 kg diatomic alcohol compounds
Solvent B, completion of dropping continues to stir 10 h after 55-57 DEG C；103-105 DEG C of 20 h of stirring are then heated to, then is warming up to
After 150-152 DEG C of stirring 18-22 h, organic solvent is reclaimed in vacuum distillation, after gained powder is cleaned through ethanol, at 53-55 DEG C
Vacuum drying 60-65 h, obtain the activated carbon composite element nano material of 2.43-2.66 kg hydroxyl functional groups；
6）Take step 5）The activated carbon composite element kg of nano material 2.4 of gained hydroxyl functional group, is added in 35 L chloroforms,
Under nitrogen protection after ultrasonically treated 2 h of room temperature, it is subsequently adding 100 mL boron trifluoride-ether complex and 2 h is stirred at room temperature；
Again under -7 ~ -8 DEG C, stirring condition, 550 mL 3- methyl -3- oxetane methanols, completion of dropping are slowly added dropwise in 5 h
Continue to stir 30 h after -7 ~ -8 DEG C；500 mL absolute ethyl alcohols are eventually adding, with 4600-5000 r/min centrifugal treatings 15-18
Min, separates and recovers solvent, and gained powder is cleaned through absolute ethyl alcohol, and is vacuum dried 12 h at room temperature, obtains 2.74-2.83
Be modified activated carbon composite element nano material described in kg；
Wherein, the graphite powder is commercially available high pure and ultra-fine graphite powder or natural single crystal graphite powder；
The CNT is commercially available multiple-wall carbon nanotube；
The hydrogen peroxide is aqueous hydrogen peroxide solution that commercial concentration is 35%；
The organic solvent A is through the dry N-methylpyrrolidone or N of dried process, N '-dimethyl acetamide；
The organic solvent B is the N '-dimethyl acetamide by volume 1 by through the anhydrous propanone and N of dried process:9 compositions
Mixed solvent；
The diatomic alcohol compounds are 1,6-HD, 1,8- ethohexadiols, 1,10- decanediols or l, 5- pentanediol；
The wood powder of the activation process be by 75 kg, particle diameter for 90-200 mesh wood powder in the hydrogen that 180 L, mass concentration are 15%
Filtered after 12h is stirred in aqueous solution of sodium oxide, gained wood powder is washed with water to neutrality；Then it is gained wood powder is dense in 120 L, quality
Spend in the aqueous hydrogen peroxide solution for 12% after stirring 18h and filter, gained wood powder is washed, and 12h is dried at 65-67 DEG C
Obtain final product.
2. sponge urban environmental protection regeneration aggregate pervious concrete according to claim 1, it is characterised in that：The lithium ground-slag
Average grain diameter is 4.0-6.6 μm；
Specific surface area >=the 1600m of the silicon ash2/kg；
The water reducer is commercially available naphthalene series high-efficiency water-reducing agent, and its water-reducing rate is 18-24%；
The ultra-fine microballon be the hollow glass micropearl that will be sorted out from flyash through mechanical crushing into grayish powder, its
Density is 2.49g/cm3, specific surface area is 1200m2/kg；
The regenerated coarse aggregate be by waste and old concrete through broken, sorting, screening, cleaning, dry after, then screen out diameter 6mm-
The particle of 12mm, obtains final product the regenerated coarse aggregate.
3. sponge urban environmental protection regeneration aggregate pervious concrete according to claim 1, it is characterised in that：The coupling agent is
Commercially available A-151 or A-171 silane couplers；
Described filler is precipitated calcium carbonate, and its particle diameter is 1-30 μm.
4. sponge urban environmental protection regeneration aggregate pervious concrete according to claim 1, it is characterised in that：Its preparation method is
By cement, lithium ground-slag, ultra-fine microballon, silicon ash, regenerated coarse aggregate, natural coarse aggregate, polyacrylate, flexibilizer additive in proportion
Mixing, stirring 20-30 s are well mixed each powder, then put into water reducer and adhesive and stir 30-40s, then by three ethanol
Amine, sodium gluconate, conserving material and water are added in mixer simultaneously, and stirring 15-20min obtains final product the sponge urban environmental protection again
Raw aggregate pervious concrete.
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| CN106186927B (en) * | 2016-07-08 | 2018-06-01 | 盼石（上海）新材料科技股份有限公司 | A kind of environment friendly pervious property concrete |
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| CN107021708A (en) * | 2017-05-31 | 2017-08-08 | 福建省盛威建设发展有限公司 | A kind of regeneration aggregate pervious concrete and preparation method thereof |
| CN107244861A (en) * | 2017-06-30 | 2017-10-13 | 常州思宇环保材料科技有限公司 | A kind of preparation method of pervious concrete |
| CN109516734A (en) * | 2017-09-20 | 2019-03-26 | 天津超能建材有限公司 | Pervious concrete and preparation method thereof |
| CN109265087B (en) * | 2018-09-29 | 2021-04-16 | 莆田学院 | Road recycled aggregate pervious concrete and preparation method thereof |
| CN109020346B (en) * | 2018-09-29 | 2021-08-24 | 莆田学院 | Highway high-toughness recycled aggregate pervious concrete and preparation method thereof |
| CN109553368A (en) * | 2019-01-17 | 2019-04-02 | 广东信强混凝土有限公司 | Regeneration concrete |
| CN110066152A (en) * | 2019-04-10 | 2019-07-30 | 江苏城工建设科技有限公司 | A kind of high resistivity regeneration concrete and preparation method thereof |
| CN113716903B (en) * | 2021-08-26 | 2023-07-04 | 安徽鋐硕绿色建材科技有限公司 | Sponge city high-strength recycled aggregate concrete and preparation method thereof |
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