CN115403318A - Sponge urban road and construction method thereof - Google Patents
Sponge urban road and construction method thereof Download PDFInfo
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- CN115403318A CN115403318A CN202211200201.7A CN202211200201A CN115403318A CN 115403318 A CN115403318 A CN 115403318A CN 202211200201 A CN202211200201 A CN 202211200201A CN 115403318 A CN115403318 A CN 115403318A
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- aggregate
- epoxy resin
- urban road
- sponge urban
- pervious concrete
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- 238000010276 construction Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 82
- 239000011380 pervious concrete Substances 0.000 claims abstract description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000003822 epoxy resin Substances 0.000 claims abstract description 45
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 45
- 238000002156 mixing Methods 0.000 claims abstract description 25
- 239000004568 cement Substances 0.000 claims abstract description 18
- -1 phenolic aldehyde amine Chemical class 0.000 claims abstract description 15
- 239000000654 additive Substances 0.000 claims abstract description 13
- 230000000996 additive effect Effects 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 43
- 238000002360 preparation method Methods 0.000 claims description 37
- 239000011162 core material Substances 0.000 claims description 24
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 21
- 239000011257 shell material Substances 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 20
- 239000000945 filler Substances 0.000 claims description 17
- 239000000843 powder Substances 0.000 claims description 17
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 14
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 12
- 239000012783 reinforcing fiber Substances 0.000 claims description 11
- 239000011276 wood tar Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 9
- 238000011049 filling Methods 0.000 claims description 8
- 239000010881 fly ash Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000003607 modifier Substances 0.000 claims description 8
- 229920000058 polyacrylate Polymers 0.000 claims description 8
- 229910021487 silica fume Inorganic materials 0.000 claims description 8
- DSSYKIVIOFKYAU-XCBNKYQSSA-N (R)-camphor Chemical compound C1C[C@@]2(C)C(=O)C[C@@H]1C2(C)C DSSYKIVIOFKYAU-XCBNKYQSSA-N 0.000 claims description 7
- 241000723346 Cinnamomum camphora Species 0.000 claims description 7
- 235000019270 ammonium chloride Nutrition 0.000 claims description 7
- 229960000846 camphor Drugs 0.000 claims description 7
- 229930008380 camphor Natural products 0.000 claims description 7
- 239000002562 thickening agent Substances 0.000 claims description 7
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 239000004816 latex Substances 0.000 claims description 6
- 229920000126 latex Polymers 0.000 claims description 6
- 239000012744 reinforcing agent Substances 0.000 claims description 6
- 229960001124 trientine Drugs 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 108010010803 Gelatin Proteins 0.000 claims description 5
- 239000008273 gelatin Substances 0.000 claims description 5
- 229920000159 gelatin Polymers 0.000 claims description 5
- 235000019322 gelatine Nutrition 0.000 claims description 5
- 235000011852 gelatine desserts Nutrition 0.000 claims description 5
- 239000011259 mixed solution Substances 0.000 claims description 5
- 229920000858 Cyclodextrin Polymers 0.000 claims description 4
- 239000000499 gel Substances 0.000 claims description 4
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical compound O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 3
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 3
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 3
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 230000035699 permeability Effects 0.000 abstract description 22
- 239000004566 building material Substances 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 description 33
- 239000004567 concrete Substances 0.000 description 16
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- 238000005452 bending Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- NJVOHKFLBKQLIZ-UHFFFAOYSA-N (2-ethenylphenyl) prop-2-enoate Chemical compound C=CC(=O)OC1=CC=CC=C1C=C NJVOHKFLBKQLIZ-UHFFFAOYSA-N 0.000 description 2
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical class C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 2
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 2
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
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- 239000002245 particle Substances 0.000 description 2
- 229920006254 polymer film Polymers 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 description 2
- 239000012047 saturated solution Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229920002748 Basalt fiber Polymers 0.000 description 1
- 241000723347 Cinnamomum Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 240000000731 Fagus sylvatica Species 0.000 description 1
- 235000010099 Fagus sylvatica Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 235000017803 cinnamon Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920006333 epoxy cement Polymers 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- 238000006116 polymerization reaction Methods 0.000 description 1
- 229940079877 pyrogallol Drugs 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
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- 230000008022 sublimation Effects 0.000 description 1
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- 230000002195 synergetic effect Effects 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- 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
- E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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 application relates to the field of building materials, and particularly discloses a sponge urban road and a construction method thereof. The sponge urban road comprises pervious concrete, wherein the pervious concrete comprises the following substances in parts by weight: 60-80 parts of aggregate, 2.4-6.4 parts of cementing material, 0.72-1.28 parts of water and 0.1-0.3 part of additive, wherein the cementing material comprises cement and modified epoxy resin, and the modified epoxy resin is phenolic aldehyde amine modified epoxy resin; the construction method comprises the following steps: s1, mixing raw materials; and S2, constructing the road. The application provides a sponge urban road, its advantage that has high strength and high water permeability.
Description
Technical Field
The application relates to the field of building materials, in particular to a sponge urban road and a construction method thereof.
Background
The sponge city is a new generation city rain and flood management concept, and means that the city can be suitable for environmental changes like a sponge, namely, the city absorbs water, stores water, seeps water and purifies water when raining, and releases and utilizes the stored water when needed, so that rainwater can freely migrate in the city.
In order to realize free migration of rainwater in cities, it is difficult to simply use drainage facilities, and it is necessary to increase water seepage paths in cities where roads are relatively large, so that it is a current research focus to enable roads to obtain water seepage effects. Permeable concrete is light concrete with pores, which is prepared by mixing aggregate, cement and the like, and the permeable concrete improves the water permeability of the concrete, increases the water permeable path in cities and reduces the occurrence of flood and other phenomena through the pore structure of the permeable concrete.
Aiming at the related technologies, the inventor thinks that the porous structure of the sponge urban road has the defect of short service life because the seepage road surface is easy to collapse, crack and the like when a vehicle passing through the road surface is loaded heavily.
Disclosure of Invention
In order to overcome the defect that a sponge urban road is short in service life, the application provides the sponge urban road and the construction method thereof.
In a first aspect, the application provides a sponge urban road, which adopts the following technical scheme:
the sponge urban road comprises pervious concrete, wherein the pervious concrete comprises the following substances in parts by weight: 60-80 parts of aggregate, 2.4-6.4 parts of cementing material, 0.72-1.28 parts of water and 0.1-0.3 part of additive, wherein the cementing material comprises cement and modified epoxy resin, and the modified epoxy resin is phenolic aldehyde amine modified epoxy resin.
By adopting the technical scheme, firstly, the modified epoxy resin is matched with the cement to be used as the cementing material, the modified epoxy resin still has the characteristics of the epoxy resin, and the cohesiveness of the cementing material can be increased, so that the cementing material can wrap the aggregate after being mixed with the aggregate, the cementing sites between the aggregates are improved, the workability and the bonding strength among all components in the pervious concrete are enhanced, and the strength and the service life of the sponge urban road are improved.
And secondly, the phenolic aldehyde amine has larger molecular weight and can be used as a curing agent of the epoxy resin, so that the phenolic aldehyde amine is adopted to modify the epoxy resin, molecular chain segments in the epoxy resin can be gathered and intertwined, the viscosity of the epoxy resin is increased, the bonding strength among the components of the concrete is further increased, a gelled substance is not easy to seep downwards, a uniform bonding effect is obtained in the pervious concrete, and the pervious concrete can obtain uniform mechanical strength.
Finally, the technical scheme optimizes the proportion of the components in the pervious concrete, adjusts the bonding strength of the cementing material, and can effectively enhance the bonding strength between the aggregates with proper bonding strength, so that the interface transition area between the cementing material and the aggregates is not obvious and continuous, the influence of the cementing material on the pores in the pervious concrete can be reduced, the water permeability and the mechanical strength of the pervious concrete are improved in a synergistic manner, and the service life and the water permeability effect of the urban road are prolonged.
Preferably, the preparation of the modified epoxy resin comprises the following steps: taking wood tar, triethylene tetramine, formaldehyde and epoxy resin according to the mass ratio of 1.8-1.3-0.4; and continuously stirring and mixing the modifier and the epoxy resin to obtain the modified epoxy resin.
By adopting the technical scheme, firstly, the wood tar is a phenolic mixture obtained by dry distillation of beech or similar plants, and the wood tar contains a large amount of phenolic substances, so the wood tar can react with triethylenetetramine and formaldehyde to obtain the phenolic amine modifier, the phenolic amine can be used as a curing agent to modify epoxy resin, and can promote molecular chains in the epoxy resin to be aggregated and tangled, but the addition of the wood tar can slow down the condensation speed of the epoxy resin, effectively improve the viscosity of the modified epoxy resin and the speed of curing and heat release, and reduce the influence of heat release on pervious concrete.
And secondly, the proportion of the phenolic aldehyde amine modifier to the epoxy resin is optimized, and the proper modifier can increase the viscosity and strength of the epoxy resin, reduce the possibility that the epoxy resin forms a plastic body by self-polymerization, enhance the hydration degree of the cementing material and effectively improve the strength of the cementing material, so that the strength of the pervious concrete can be effectively improved.
Preferably, the composite material also comprises 1.2-2 parts of fine aggregate, wherein the fine aggregate is treated by a pretreatment agent, and the pretreatment agent comprises hydroxypropyl methyl cellulose and redispersible latex powder.
By adopting the technical scheme, firstly, the pretreating agent can wrap the fine aggregate to enhance the bonding strength between the fine aggregate and the rest components in the pervious concrete, and the pretreating agent can form a polymer film in the pervious concrete, and the polymer film can be interwoven and wound with the hydrated gel material to form a mixture of interpenetrating matrixes in the concrete together. The interface bonding strength between the cementing material and the aggregate can be further enhanced, the bonding strength between the aggregates in the pervious concrete is increased, and the mechanical strength of the pervious concrete is improved.
Secondly, after the pretreatment agent modifies the fine aggregate, micro pores between the aggregate and the cementing material can be embedded and filled, bonding sites between the cementing material and the aggregate are increased, the strength of a framework in the pervious concrete is improved, the structure of a permeable pore in the pervious concrete is not obviously influenced, and the pervious concrete can maintain a better permeable effect.
In addition, after the redispersible latex powder and the hydroxypropyl cellulose are matched, a filamentous network structure can be formed in the pervious concrete, and the generation and the expansion of cracks of the pervious concrete can be effectively inhibited through the action of traction and cohesion. And the proportion of each component in the pretreating agent is optimized, and the water permeability effect and the mechanical strength of the pervious concrete can be synergistically improved.
And finally, a part of fine aggregates are properly added into the pervious concrete, the fine aggregates can fill pores formed among the aggregates, and the fine aggregates are treated by the pretreatment agent, so that the fine aggregates are not easy to seep downwards, can be uniformly distributed in the pervious concrete, are loaded on the aggregates, increase contact points among the aggregates, and increase the bonding strength between the aggregates and the cementing material. Meanwhile, the thickness of the slurry film on the surface of the aggregate can be increased by adding the fine aggregate, the bonding strength among all components in the pervious concrete is effectively enhanced, the addition amount of the fine aggregate is optimized, and the influence of the fine aggregate on the permeability coefficient of the pervious concrete is reduced.
Preferably, the gel material also comprises a filling material, the filling material comprises a core material and a shell material, the core material comprises one or two of camphor and ammonium chloride, and the shell material comprises any one of cyclodextrin and gelatin.
Through adopting above-mentioned technical scheme, this application technical scheme adds the filler in gelled material, can fill the pore structure between the aggregate in the pervious concrete through the filler. In the process of mixing concrete, heating treatment is needed; along with the rise of temperature, the core material of the filler is gradually gasified and sublimated, and the volume of the gasified core material is far larger than that of the gasified core material when the core material is solid, so that the shell material can be burst; and with the increase of the temperature, the shell material is also softened gradually, so that the possibility that the core material breaks the shell material is further improved.
After the filling material shell is broken, the shell material is bombarded to the inner wall of the pore structure in the pervious concrete along with impact, so that the thickness of the inner wall of the pore structure is increased, and the possibility of pore collapse is reduced; and the gas impact of the core material can blow away the materials with the tiny blocking pore structures, so that the permeable concrete is favorably maintained with the through pore structures, the strength of the inner walls of the pores is effectively improved, and the strength and the permeable effect of the concrete are synergistically improved.
The core material adopts camphor and ammonium chloride for matching, and can sublimate at a proper temperature to impact the shell material. The shell material is wrapped by the cyclodextrin or the gelatin, so that the core material can be protected, and the possibility of dissolving the core material in the mixing process is reduced.
Preferably, the filler is externally loaded with a reinforcing agent, and the reinforcing agent comprises any one of silicon dioxide and slag powder.
By adopting the technical scheme, the reinforcing agent is loaded outside the filler, so that on one hand, the shell material can be sealed, and the possibility that the shell material is excessively melted to expose the core material is reduced; on the other hand, when the inner core material expands to break the shell material, the reinforcing agent is bombarded to the inner wall of the pore structure formed by the aggregate along with the shell material, the memorability of the inner wall of the pore structure is further enhanced, the possibility of collapse of the inner pores of the water-permeable concrete is reduced, and the strength of the inner wall of the pore structure is enhanced, namely the strength and the water-permeable effect of the water-permeable concrete are synergistically improved.
Preferably, the cementing material also comprises silica fume and fly ash, and the mass ratio of the cement to the silica fume to the fly ash is 4-6.
By adopting the technical scheme, the silica fume and the fly ash are added into the cementing material, and both the silica fume and the fly ash can effectively replace part of cement, so that the cost of the cementing material is reduced. And secondly, the doping of the silica fume and the fly ash can fill the pore structure of the cement, so that gradation can be formed in the cementing material, and the filling effect and the micro-aggregate effect are achieved. And moreover, the density increase of a gel network in the cementing material can be effectively promoted, and the compactness and the viscosity of the cementing material are further improved, so that the cementing material can be effectively connected with aggregate, the bonding strength among all components in the pervious concrete is improved, and the service life of the sponge road is prolonged.
Preferably, the aggregate is pretreated by an intermediate agent, and the intermediate agent comprises rubber powder and a styrene/acrylate polymer.
Through adopting above-mentioned technical scheme, preferably rubber powder and the cooperation of styrene acrylate polymer are as intermediate agent modified aggregate among the application technical scheme, and styrene acrylate polymer can load the rubber powder and wrap up to the aggregate jointly, and the viscidity of aggregate is tentatively increased, and then heats up when mixing, can melt rubber powder, and the intermediate agent is mutually supported and is formed filiform intertwine network, further strengthens the bonding strength between aggregate and the gelled material. And the rubber powder is added, so that elastic particles can be brought into the pervious concrete, the toughness of the pervious concrete is increased, and the service life of the pervious concrete is effectively prolonged.
Preferably, the intermediate agent further comprises reinforcing fibers, and the mass ratio of the rubber powder to the styrene/acrylate polymer to the reinforcing fibers is 1-3.
By adopting the technical scheme, the reinforcing fiber is doped in the intermediate agent, so that the aggregate modified by the intermediate agent is easier to form an aggregate-bonding layer-reinforcing fiber structure, namely the bonding layer is wrapped outside the aggregate and has a divergent fiber structure, the bonding strength between the aggregate and the cementing material can be further enhanced through the traction and entanglement of the fiber, and the mechanical strength of the sponge urban road is effectively improved.
In addition, this application technical scheme loads reinforcing fiber on the aggregate in advance, can reduce the reinforcing fiber and to the emergence of the filling phenomenon in the hole between the aggregate, not only through the bonding strength between each component in the reinforcing fiber reinforcing pervious concrete, can also maintain suitable effect of permeating water.
Preferably, the admixture comprises a water reducing agent and a thickening agent.
Through adopting above-mentioned technical scheme, this application technical scheme adopts water-reducing agent and thickener cooperation as the additive, the water-reducing agent not only can strengthen the intensity of cement, can also reduce the quantity of moisture, and the addition of thickener can increase the quantity of moisture, and through the cooperation of water-reducing agent and thickener, make the water consumption in the pervious concrete suitable, obtain suitable water-cement ratio, not only effectively increased the joint strength between cementitious material and the aggregate, can also increase the porosity in the pervious concrete, the intensity and the water permeability of pervious concrete have been improved in coordination. The thickening agent can increase the cohesiveness of the slurry material, namely, the cementing material is easy to be enriched at the contact point of the aggregate, and the bonding strength between the aggregate and the aggregate is effectively enhanced.
In a second aspect, the application provides a construction method of a sponge urban road, which adopts the following technical scheme:
a construction method of a sponge urban road comprises the following steps: s1, mixing raw materials: weighing aggregate, a cementing material, an additive and water according to a formula, stirring and mixing the cementing material, the additive and the water in advance, heating, adding the aggregate, and continuously stirring to obtain mixed aggregate; s2, road construction: and paving the mixed aggregate on the road surface while the mixed aggregate is hot, and laminating and maintaining to obtain the sponge road.
Through adopting above-mentioned technical scheme, this application technical scheme has optimized the mixing order of gathering materials, heats the mixture to gelled material in advance for disperse evenly between each component of gelled material, make gelled material obtain even bonding effect, can stabilize the bonding aggregate, improve the intensity of the concrete that permeates water.
In summary, the present application has the following beneficial effects:
1. according to the application, the phenolic amine modified epoxy resin and the cement are matched to be used as the cementing material, and the molecular chain segments in the modified epoxy resin can be gathered and intertwined with each other, so that the viscosity of the cementing material is increased, the bonding strength of the cementing material to aggregate can be enhanced, the occurrence of the infiltration phenomenon of the cementing material can be effectively inhibited, and the pore structure in the pervious concrete is maintained; in addition, the corners of the aggregate can be wrapped by the modified epoxy resin, the cementing material and the aggregate can form a continuous transition area, and the bonding strength of each component in the pervious concrete is further enhanced, so that the sponge urban road has better strength and pervious effect.
2. The preferred adoption has doped the stopping in gelled material in this application, the pore structure that the stopping can effectively form between the aggregate, when mixing, along with the rising of temperature, the kernel material of stopping is heated sublimation gasification, the shell material bursts, with shell material bombardment to the pore structure inner wall, support and load the pore structure inner wall, improve the intensity of pore inner wall, reduce the emergence of pore structure collapse phenomenon, and the gas that the kernel material gasification produced can strike the hole between the aggregate, reduce the emergence of small material to the jam phenomenon of pore structure between the aggregate, improve the water permeability of pervious concrete, consequently, sponge urban road has obtained excellent intensity and the effect of permeating water.
3. According to the method, the cementing material is mixed in advance, so that the distribution uniformity of each component in the cementing material can be improved, the cementing material can obtain uniform cohesiveness, the aggregate can be stably bonded, and the strength of the sponge urban road can be improved.
Detailed Description
The present application will be described in further detail with reference to examples.
Preparation example
Examples of preparation of modified epoxy resins
Preparation examples 1 to 3
The wood tar, triethylenetetramine, formaldehyde and epoxy resin were weighed separately, and the specific masses are shown in Table 1. Putting wood tar into a container, heating the wood tar to 65 ℃ in a water bath, stirring the wood tar for 30min at a constant speed of 600r/min, slowly dropwise adding triethylenetetramine into the solution, continuously stirring the solution for 2h to obtain a mixed solution, adding formaldehyde into the mixed solution, heating the mixed solution to 90 ℃, and carrying out heat preservation reaction for 3h to obtain the phenolic aldehyde amine modifier. Mixing phenolic aldehyde amine and epoxy resin, and stirring for 2min at the speed of 285r/min at room temperature to obtain the modified epoxy resin 1-3.
It is worth mentioning that the wood tar contains 63% phenolic substances, the main component being wood pyrogallol.
TABLE 1 preparation examples 1 to 3 compositions of modified epoxy resins
Preparation example of pretreating agent
Preparation examples 4 to 6
Respectively weighing hydroxypropyl methyl cellulose, redispersible latex powder and water, wherein the specific mass is shown in Table 2, stirring and mixing the hydroxypropyl cellulose, the redispersible latex powder and the water to obtain intermediate solution, and stirring and mixing to obtain the pretreating agents 1-3.
TABLE 2 preparation examples 4-6 pretreatment agent compositions
Examples of preparation of Fine aggregate
Preparation example 7
3kg of fine sand with the particle size range of 0.16-0.315mm and 3kg of the pretreating agent 1 are taken and stirred and mixed to obtain the fine aggregate 1 treated by the pretreating agent.
Preparation examples 8 to 9
The difference from preparation example 7 is that: a fine aggregate 2-3 treated with a pretreating agent was prepared using the pretreating agent 2-3 in place of the pretreating agent 1 in preparation example 7.
Examples of preparation of fillers
Preparation example 10
Taking 0.5kg of ammonium chloride as a core material and 1kg of cyclodextrin as a shell material, and mixing the shell material with water to prepare a saturated solution. And coating cinnamon essential oil outside the ammonium chloride to obtain the core material. Adding the core material into the saturated solution, quickly stirring, placing in a refrigerator, refrigerating, filtering, retaining filter residue, washing, drying, and grinding to obtain the filler 1.
Preparation example 11
The difference from preparation example 10 is that: 0.5kg of camphor was taken as the core material to prepare the filler 2.
Preparation example 12
The difference from preparation example 10 is that: the core material also included 0.5kg camphor, making the filling 3.
Preparation example 13
Respectively taking 0.5kg of camphor, 0.5kg of ammonium chloride and 1kg of gelatin, melting the gelatin to obtain a wall material, taking the camphor and the ammonium chloride to mix to obtain a core material, placing the core material in the wall material, stirring and mixing, filtering, retaining solids, cooling and drying to obtain the filler 4.
Preparation example 14
The difference from preparation 13 is that: 1kg of solid matter was mixed with 0.5kg of nano-sized silica to obtain a filler 5.
Preparation example 15
The difference from preparation 14 is that: a filler 6 was prepared by taking 0.5kg of slag powder in place of the nano-sized silica in preparation example 14.
Examples of production of gelled Material
Preparation examples 16 to 18
And respectively weighing cement, silica fume, fly ash and modified epoxy resin, wherein the specific mass is shown in Table 3, and stirring and mixing to obtain the cementing materials 1-3.
TABLE 3 PREPARATION EXAMPLES 16-18 CEMENTATION COMPOSITION
Examples of preparation of intermediate
Preparation examples 19 to 22
Respectively weighing rubber powder, styrene/acrylate polymer and reinforcing fiber, wherein the specific mass is shown in Table 4, and stirring and mixing to obtain 1-4 intermediate agents.
The reinforcing fibers include, but are not limited to, any one or more of chopped PVA fibers, chopped glass fibers and chopped basalt fibers, and the chopped PVA fibers are selected in the preparation example.
The styrene/acrylate polymer is MD-261 type polymer latex with the solid content of 50%.
TABLE 4 preparation examples 19 to 22 intermediate compositions
Preparation example 23
And stirring and mixing the aggregate and the intermediate agent 1 to obtain the aggregate 1 pretreated by the intermediate agent.
Preparation examples 24 to 26
The difference from preparation 23 is that: aggregates pretreated with an intermediate agent 2 to 4 were prepared using the intermediate agent 2 to 4 in place of the pretreating agent 1 in preparation example 23.
Preparation example 27
1kg of high-efficiency polycarboxylic acid water reducing agent and 1kg of cellulose ether thickening agent are taken as additives.
Examples
Examples 1 to 3
In one aspect, the application provides a sponge urban road, which is made of pervious concrete, wherein the pervious concrete comprises aggregate, a cementing material, water and an additive, wherein the cementing material comprises cement and a modified epoxy resin 1 in a mass ratio of 1.
On the other hand, the application provides a construction method of a sponge urban road, which comprises the following steps:
mixing raw materials: heating the aggregate to 40 ℃, weighing the aggregate, the cementing material and the additive according to the formula, adding the aggregate, the cementing material and the additive into a stirrer, stirring and mixing, adding water into the stirrer, and stirring to obtain mixed aggregate;
road construction: erecting a template, transporting the mixed aggregate, paving the mixed aggregate on the road surface while the mixed aggregate is hot, carrying out troweling treatment, smoothing by using a press roll, spraying water on the surface layer after forming for 8 hours, carrying out film covering maintenance, and maintaining for 28 days to obtain the pervious concrete 1-3.
Table 5 examples 1-3 pervious concrete compositions
Examples 4 to 5
The difference from example 2 is that: and 2-3 modified epoxy resin is adopted to replace the modified epoxy resin 1 in the example 2, and 4-5 pervious concrete is prepared.
Examples 6 to 8
The difference from example 2 is that: 1.2kg of fine aggregate treated by the pretreatment agent 1-3 kg is added to the pervious concrete to prepare 6-8 of the pervious concrete.
Example 9
The difference from example 6 is that: 1.2kg of the fine aggregate 1 treated with the pretreating agent was added to the pervious concrete to prepare a pervious concrete 9.
Example 10
The difference from example 6 is that: 1.6kg of the fine aggregate 1 treated with the pretreating agent was added to the pervious concrete to prepare the pervious concrete 10.
Examples 11 to 16
The difference from example 2 is that: 1-6 kg of filler is added into the pervious concrete to prepare 11-16 pervious concrete.
Examples 17 to 19
The difference from example 2 is that: pervious concrete 17-19 was prepared using cementitious materials 1-3 in place of the cementitious material in example 2.
Examples 20 to 23
The difference from example 2 is that: pervious concrete 20-23 was prepared using aggregates 1-4 pretreated with an intermediate agent instead of the aggregate of example 2.
Comparative example
Comparative example 1
The comparative example is different from example 2 in that the pervious concrete 24 is prepared using epoxy resin and cement as a binding material.
Comparative example 2
The present comparative example is different from example 2 in that the pervious concrete 25 is prepared using only cement as a cementitious material in the present comparative example.
Performance test
(1) And (3) testing the compression resistance: a cubic compression-resistant test piece of 100mm multiplied by 100mm is prepared by taking mixed aggregates, and is tested according to GB/T50081-2002 standard of test methods for mechanical properties of common concrete, and a microcomputer-controlled constant-loading compression tester is adopted for detection.
(2) And (3) detecting the bending resistance: a cubic compression-resistant test piece of 100mm multiplied by 400mm prepared from mixed aggregates is tested according to GB/T50081-2002 standard of test methods for mechanical properties of common concrete, and is detected by an electro-hydraulic servo universal tester.
(3) And (3) detecting the water permeability coefficient: a tester is designed according to the national standard of technical Specification of permeable cement concrete pavement, and the permeability coefficient of a cylindrical test piece with the diameter of 100mm and the height of 50mm is detected according to a fixed water head method.
TABLE 6 EXAMPLES 1-3 Performance test
In combination with the comparison of the performance tests in table 6, it can be found that:
the permeability coefficient of the pervious concrete test pieces in the embodiments 1 to 23 in the application is more than 10.5mm/s, and accords with the specification of pervious concrete.
(1) By combining examples 1-3, examples 4-5 and comparative examples 1-2, it can be found that: the compressive property and the bending resistance of the pervious concrete prepared in the embodiments 1 to 3 are improved, and the water permeability is reduced, which shows that the modified epoxy resin and the cement are adopted as the cementing material in the application, and the phenolic amine modified epoxy resin has a more aggregation and entanglement structure, so that the cohesiveness of the epoxy resin is increased, the bonding strength of the cementing material to the aggregate is effectively enhanced, the cementing material is not easy to leak, the pore structure in the pervious concrete can be maintained, and the water permeability effect of the pervious concrete is maintained while the strength of the pervious concrete is improved. As can be seen from Table 6, the strength and water permeability properties obtained in example 2 are better, which indicates that the proportion of each component in the pervious concrete in example 2 is more suitable, and the proportion of each component in the phenolic aldehyde amine modifier in example 4 is more suitable.
(2) A comparison of examples 6 to 8, examples 9 to 10 and example 2 shows that: the pervious concrete prepared in the examples 6-10 has improved compression resistance and folding resistance and reduced water permeability, which shows that the application adds fine aggregates into the pervious concrete, and the fine aggregates can be loaded on the aggregates, thereby increasing the contact sites on the aggregates and improving the bonding strength between the aggregates. The fine aggregate is modified by the pretreating agent, a filamentous network structure can be formed in the pervious concrete, the pulling force and the cohesion in the pervious concrete are increased, and the mechanical strength of the pervious concrete is further enhanced. As can be seen from Table 6, the strength and water permeability of the pre-treatment agent obtained in examples 7 and 9 are good, and it is shown that the ratio of the components in the pre-treatment agent is suitable in example 7 and the amount of the fine aggregate added is suitable in example 9.
(3) A comparison of examples 11 to 14, examples 15 to 16 and example 2 shows that: the pervious concrete prepared in the embodiments 11 to 16 has improved compression resistance and fracture resistance, and reduced water permeability, which shows that the filler is added into the pervious concrete, the filler can be filled into the aggregate pores, the core material sublimes and expands with the rise of the mixing temperature, the shell material is broken by expanding, the shell material is bombarded onto the inner walls of the aggregate pores, the strength of the inner walls of the aggregate pores is enhanced, the probability of collapse of the aggregate pores is reduced, and the gasified gas of the core material can impact the aggregate pores, so that the blockage of the material to the aggregate pores is reduced, and the smoothness of the aggregate pores is improved. As can be seen from Table 6, the strength and water permeability properties obtained in example 15 are better, indicating that the proportions of the components in the filler are more suitable.
(4) A comparison of examples 17 to 19 with example 2 shows that: the compressive property and the bending resistance of the pervious concrete prepared in the embodiments 17 to 19 are improved, and the water permeability is reduced, which indicates that the application optimizes the proportion of each component in the cementitious material, not only can reduce the cost of the cementitious material, but also can form gradation in the cementitious material, improve the connection effect of the cementitious material to the aggregate, and further improve the strength of the pervious concrete. As can be seen from Table 6, the strength and water permeability properties obtained in example 18 are better, indicating that the proportions of the components in the filler are more suitable.
(5) A comparison of examples 20 to 23 with example 2 shows that: the pervious concrete prepared in the examples 20-23 has improved compression resistance and folding resistance and reduced water permeability, which indicates that the aggregate is treated by the application, the aggregate is wrapped by the binding layer and the fiber structure, and the fiber structure forms a dispersed structure outside the aggregate, so that the bonding strength between the aggregate and the cementing material is further enhanced. As can be seen from Table 6, the strength and water permeability properties obtained in example 22 are better, indicating that the ratio of the components in the intermediate agent is more suitable.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. The sponge urban road is characterized by comprising pervious concrete, wherein the pervious concrete comprises the following substances in parts by weight: 60-80 parts of aggregate, 2.4-6.4 parts of cementing material, 0.72-1.28 parts of water and 0.1-0.3 part of additive, wherein the cementing material comprises cement and modified epoxy resin, and the modified epoxy resin is phenolic aldehyde amine modified epoxy resin.
2. The sponge urban road according to claim 1, characterized in that the preparation of the modified epoxy resin comprises the following steps: taking wood tar, triethylene tetramine, formaldehyde and epoxy resin according to the mass ratio of 1.8-1: 0.3-0.4, stirring and mixing the formaldehyde and the triethylene tetramine, heating to obtain a mixed solution, adding the formaldehyde into the mixed solution, continuously heating, continuously stirring, and carrying out heat preservation reaction to obtain the phenolic aldehyde amine modifier; and continuously stirring and mixing the phenolic aldehyde amine modifier and the epoxy resin to obtain the modified epoxy resin.
3. The sponge urban road according to claim 1, characterized in that: the composite material also comprises 1.2-2 parts of fine aggregate, wherein the fine aggregate is treated by a pretreatment agent, and the pretreatment agent comprises hydroxypropyl methyl cellulose and redispersible latex powder.
4. A sponge urban road according to claim 3, characterized in that: the gel material also comprises a filling material, wherein the filling material comprises a core material and a shell material, the core material comprises one or two of camphor and ammonium chloride, and the shell material comprises any one of cyclodextrin and gelatin.
5. A sponge urban road according to claim 4, characterized in that: the filler is externally loaded with a reinforcing agent, and the reinforcing agent comprises any one of silicon dioxide and slag powder.
6. The sponge urban road according to claim 1, characterized in that: the cementing material also comprises silica fume and fly ash, wherein the mass ratio of the cement to the silica fume to the fly ash is (4-6: 1-4).
7. The sponge urban road according to claim 1, characterized in that: the aggregate is pretreated by an intermediate agent, and the intermediate agent comprises rubber powder and a styrene/acrylate polymer.
8. The sponge urban road of claim 7, wherein: the intermediate agent also comprises reinforcing fibers, and the mass ratio of the rubber powder to the styrene/acrylate polymer to the reinforcing fibers is 1-3.
9. The sponge urban road according to claim 1, characterized in that: the additive comprises a water reducing agent and a thickening agent.
10. The construction method of the sponge urban road according to any one of claims 1 to 9, characterized by comprising the following steps:
s1, mixing raw materials: weighing aggregate, a cementing material, an additive and water according to a formula, stirring and mixing the cementing material, the additive and the water in advance, heating up, adding the aggregate, and continuing stirring to obtain mixed aggregate;
s2, road construction: and paving the mixed aggregate on the road surface while the mixed aggregate is hot, and covering a film for maintenance to obtain the sponge road.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117362074A (en) * | 2023-10-10 | 2024-01-09 | 邯郸市康洁节能材料科技有限公司 | Permeable concrete for highway construction and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110937860A (en) * | 2019-12-25 | 2020-03-31 | 福建农林大学 | Wood tar-formaldehyde modified epoxy resin pervious concrete and preparation method thereof |
| KR102146337B1 (en) * | 2020-03-09 | 2020-08-20 | 대성방수시스템(주) | Constructing method for waterproof and improved durability of concrete structures using infiltrative liquid waterproofing agent |
| CN113501687A (en) * | 2021-08-02 | 2021-10-15 | 日照联汇建材有限公司 | Recycled aggregate pervious concrete and preparation method thereof |
| CN113816643A (en) * | 2021-09-24 | 2021-12-21 | 武汉三源特种建材有限责任公司 | Concrete reinforcing agent for sponge city construction, preparation method thereof and pervious concrete |
| CN114014984A (en) * | 2021-11-09 | 2022-02-08 | 云南森博混凝土外加剂有限公司 | Microgel concrete surface reinforcing agent and preparation method thereof |
-
2022
- 2022-09-29 CN CN202211200201.7A patent/CN115403318A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110937860A (en) * | 2019-12-25 | 2020-03-31 | 福建农林大学 | Wood tar-formaldehyde modified epoxy resin pervious concrete and preparation method thereof |
| KR102146337B1 (en) * | 2020-03-09 | 2020-08-20 | 대성방수시스템(주) | Constructing method for waterproof and improved durability of concrete structures using infiltrative liquid waterproofing agent |
| CN113501687A (en) * | 2021-08-02 | 2021-10-15 | 日照联汇建材有限公司 | Recycled aggregate pervious concrete and preparation method thereof |
| CN113816643A (en) * | 2021-09-24 | 2021-12-21 | 武汉三源特种建材有限责任公司 | Concrete reinforcing agent for sponge city construction, preparation method thereof and pervious concrete |
| CN114014984A (en) * | 2021-11-09 | 2022-02-08 | 云南森博混凝土外加剂有限公司 | Microgel concrete surface reinforcing agent and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117362074A (en) * | 2023-10-10 | 2024-01-09 | 邯郸市康洁节能材料科技有限公司 | Permeable concrete for highway construction and preparation method thereof |
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Application publication date: 20221129 |