CN116971272A - Self-repairing drainage pavement structure of concrete bridge deck and construction method thereof - Google Patents
Self-repairing drainage pavement structure of concrete bridge deck and construction method thereof Download PDFInfo
- Publication number
- CN116971272A CN116971272A CN202310972383.8A CN202310972383A CN116971272A CN 116971272 A CN116971272 A CN 116971272A CN 202310972383 A CN202310972383 A CN 202310972383A CN 116971272 A CN116971272 A CN 116971272A
- Authority
- CN
- China
- Prior art keywords
- repairing
- self
- parts
- layer
- concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 123
- 238000010276 construction Methods 0.000 title claims abstract description 21
- 241000193830 Bacillus <bacterium> Species 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 41
- 229920005989 resin Polymers 0.000 claims abstract description 31
- 239000011347 resin Substances 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000004568 cement Substances 0.000 claims abstract description 18
- 238000006757 chemical reactions by type Methods 0.000 claims abstract description 8
- 238000010000 carbonizing Methods 0.000 claims abstract description 5
- 239000004615 ingredient Substances 0.000 claims abstract description 5
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 230000013011 mating Effects 0.000 claims abstract 3
- 239000010426 asphalt Substances 0.000 claims description 58
- 238000003763 carbonization Methods 0.000 claims description 37
- 239000002775 capsule Substances 0.000 claims description 31
- 239000000725 suspension Substances 0.000 claims description 25
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 20
- 238000000576 coating method Methods 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 15
- 238000003801 milling Methods 0.000 claims description 15
- 239000012492 regenerant Substances 0.000 claims description 14
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 10
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 10
- 239000008158 vegetable oil Substances 0.000 claims description 10
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 229920000728 polyester Polymers 0.000 claims description 9
- 235000010413 sodium alginate Nutrition 0.000 claims description 9
- 239000000661 sodium alginate Substances 0.000 claims description 9
- 229940005550 sodium alginate Drugs 0.000 claims description 9
- 239000003085 diluting agent Substances 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 238000012258 culturing Methods 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 229920003986 novolac Polymers 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 5
- 244000068988 Glycine max Species 0.000 claims description 5
- 235000010469 Glycine max Nutrition 0.000 claims description 5
- 239000004952 Polyamide Substances 0.000 claims description 5
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 5
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 5
- 240000008042 Zea mays Species 0.000 claims description 5
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 5
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 5
- IBVAQQYNSHJXBV-UHFFFAOYSA-N adipic acid dihydrazide Chemical compound NNC(=O)CCCCC(=O)NN IBVAQQYNSHJXBV-UHFFFAOYSA-N 0.000 claims description 5
- 239000000084 colloidal system Substances 0.000 claims description 5
- 235000005822 corn Nutrition 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 150000002989 phenols Chemical class 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 229920000570 polyether Polymers 0.000 claims description 5
- 229920001228 polyisocyanate Polymers 0.000 claims description 5
- 239000005056 polyisocyanate Substances 0.000 claims description 5
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 5
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 5
- 239000010453 quartz Substances 0.000 claims description 5
- 239000012744 reinforcing agent Substances 0.000 claims description 5
- 125000000467 secondary amino group Chemical class [H]N([*:1])[*:2] 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 235000012424 soybean oil Nutrition 0.000 claims description 5
- 239000003549 soybean oil Substances 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- 239000012745 toughening agent Substances 0.000 claims description 4
- 239000001963 growth medium Substances 0.000 claims description 2
- 238000011068 loading method Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000002715 modification method Methods 0.000 claims 1
- 244000005700 microbiome Species 0.000 abstract description 13
- 201000010099 disease Diseases 0.000 abstract description 9
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 9
- 230000009471 action Effects 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 130
- 238000002156 mixing Methods 0.000 description 23
- 230000000694 effects Effects 0.000 description 14
- 238000003756 stirring Methods 0.000 description 14
- 239000004575 stone Substances 0.000 description 12
- 239000000203 mixture Substances 0.000 description 11
- 229910052500 inorganic mineral Inorganic materials 0.000 description 10
- 239000011707 mineral Substances 0.000 description 10
- 230000001580 bacterial effect Effects 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 9
- 239000000839 emulsion Substances 0.000 description 9
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 8
- 238000005422 blasting Methods 0.000 description 8
- 238000003825 pressing Methods 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 8
- 239000012880 LB liquid culture medium Substances 0.000 description 7
- 239000011229 interlayer Substances 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 6
- 239000004840 adhesive resin Substances 0.000 description 5
- 229920006223 adhesive resin Polymers 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 102000004190 Enzymes Human genes 0.000 description 4
- 108090000790 Enzymes Proteins 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000011384 asphalt concrete Substances 0.000 description 4
- 238000003490 calendering Methods 0.000 description 4
- 238000007580 dry-mixing Methods 0.000 description 4
- 239000003595 mist Substances 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000002791 soaking Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- YSUQLAYJZDEMOT-UHFFFAOYSA-N 2-(butoxymethyl)oxirane Chemical compound CCCCOCC1CO1 YSUQLAYJZDEMOT-UHFFFAOYSA-N 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 2
- 238000005842 biochemical reaction Methods 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- -1 phenolic aldehyde Chemical class 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- 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
-
- 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
- C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
- C09J163/04—Epoxynovolacs
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/20—Bacteria; Culture media therefor
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
- E01C11/226—Coherent pavings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
- E01C7/142—Mixtures or their components, e.g. aggregate
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
- E01C7/182—Aggregate or filler materials, except those according to E01C7/26
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
- E01C7/26—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
- E01C7/26—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
- E01C7/262—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre with fibrous material, e.g. asbestos; with animal or vegetal admixtures, e.g. leather, cork
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
- E01C7/325—Joining different layers, e.g. by adhesive layers; Intermediate layers, e.g. for the escape of water vapour, for spreading stresses
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/086—Drainage arrangements or devices
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- 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
- C04B2111/72—Repairing or restoring existing buildings or building materials
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Zoology (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Genetics & Genomics (AREA)
- Wood Science & Technology (AREA)
- Biomedical Technology (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Microbiology (AREA)
- Virology (AREA)
- Inorganic Chemistry (AREA)
- Tropical Medicine & Parasitology (AREA)
- Medicinal Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Road Paving Structures (AREA)
Abstract
The invention belongs to the technical field of bridge deck pavement, and particularly relates to a self-repairing drainage pavement structure of a concrete bridge deck and a construction method thereof, wherein the technical key points are as follows: the structure of mating formation from the bottom up includes in proper order: a cement concrete slab base layer, a wet bonding resin layer, a self-repairing porous concrete pavement layer, a high-temperature reaction type bonding layer and a self-repairing PA-10 pavement layer; wherein, the materials of the self-repairing porous concrete pavement layer comprise concrete ingredients and bacteria-carrying ceramsite; the bacteria-carrying ceramsite is prepared by carbonizing and modifying ceramsite and carrying bacillus. The porous cement concrete structure is doped with the ceramsite preloaded with the microorganisms so as to realize the self-repairing function of cracking diseases, and the upper layer large-gap self-repairing PA-10 structure is combined so as to meet the air and water requirements of the microorganisms, effectively improve the self-repairing action depth of the microorganisms and realize the cooperative consistency of the drainage and self-repairing functions of the upper and lower layers.
Description
Technical Field
The invention belongs to the technical field of bridge deck pavement, and particularly relates to a self-repairing drainage pavement structure of a concrete bridge deck and a construction method thereof.
Background
The concrete bridge has low construction cost, small technical difficulty and wide application. However, the concrete bridge has the defects of large dead weight, easy cracking of the panel and reflection to the pavement layer, and the pavement stress characteristic of the concrete bridge surface is different from that of the traditional asphalt pavement, so that the common asphalt pavement design method is adopted, the pavement durability of the concrete bridge surface is easy to be insufficient, and the pavement diseases are frequent.
In order to solve the problems, the full-thickness concrete pavement is adopted to reinforce the concrete bridge deck, and meanwhile, microorganisms capable of generating calcium carbonate precipitates through biochemical reaction are utilized to repair concrete cracks, but the biochemical reaction of the microorganisms needs certain moisture and air conditions. The current microorganism repairing technology often has the repairing depth remained on the concrete surface. And microorganisms are directly added in the mixing process, so that the activity of the microorganisms is seriously influenced, and the repairing effect is adversely affected. Meanwhile, the full-thickness concrete bridge deck pavement is used as a rigid pavement, and the travelling comfort of the full-thickness concrete bridge deck pavement is a certain gap from that of a flexible asphalt pavement.
Disclosure of Invention
The invention aims to provide a self-repairing drainage pavement structure of a concrete bridge deck and a construction method thereof, which are used for reinforcing the concrete bridge deck and improving the durability.
The technical aim of the invention is realized by the following technical scheme:
the invention provides a self-repairing drainage pavement structure of a concrete bridge deck, which sequentially comprises the following components from top to bottom: a cement concrete slab base layer, a wet bonding resin layer, a self-repairing porous concrete pavement layer, a high-temperature reaction type bonding layer and a self-repairing PA-10 pavement layer;
wherein, the materials of the self-repairing porous concrete pavement layer comprise concrete ingredients and bacteria-carrying ceramsite;
the bacteria-carrying ceramsite is prepared by carbonizing and modifying ceramsite and carrying bacillus.
Further, the total thickness of the paving structure provided by the invention is 5-10 cm, the thickness of the wet bonding resin layer is 1-2 mm, the thickness of the self-repairing porous concrete paving layer is 4-6 cm, the thickness of the high-temperature reactive bonding layer is 1-2 mm, and the thickness of the self-repairing PA-10 paving layer is 3-5 cm.
In the invention, the wet bonding resin layer and the high-temperature reactive bonding layer are compounded, so that the bonding capacity between paving layers is further improved. The self-repairing porous concrete is used as a paving lower layer to reinforce the concrete bridge deck, and meanwhile, the self-repairing asphalt concrete PA-10 is used as a paving upper layer to form a synergistic effect, so that the comfort requirement of road surface driving is met.
The self-repairing porous concrete pavement layer and the self-repairing asphalt concrete PA-10 pavement layer are of porous structures, a double-hole structure is formed between the two layers, the water drainage capacity of the pavement can be improved, the requirements on moisture and air in the microbial self-healing technology can be met, the cooperative repairing capacity of the upper layer and the lower layer of pavement is realized, the cracking resistance of the pavement structure is effectively improved, and crack propagation is avoided.
According to the invention, the ceramsite carrier loaded with the bacillus is carbonized, and the pH value of the surface of the ceramsite is reduced after carbonization treatment, so that the ceramsite carrier is more suitable for bacillus to attach and survive, and meanwhile, the strength of the bacteria-loaded ceramsite can be improved.
Further, the method for loading bacillus by the bacteria-carrying ceramsite comprises immersing the carbonized and modified porous ceramsite into bacillus suspension under vacuum negative pressure, and drying. Preferably, soaking for 30min to make the ceramsite fully absorb bacillus, and then placing in an oven for constant temperature drying.
Further, in the present invention, the method for carbonizing and modifying porous ceramic particles comprises placing porous ceramic particles in a carbonization tank according to CO in the carbonization tank 2 The carbonization degree of the porous ceramsite is regulated by the concentration, the carbonization temperature and the carbonization time.
Due to the limitation of the growth conditions of bacillus, the carbonization degree of the ceramsite needs to be controlled, and if the carbonization degree is smaller, the effect of improving the pH value of the surface cannot be achieved; if the carbonization degree is too high, the strength of the ceramsite is reduced, and the growth and propagation of bacillus are not facilitated.
Thus, in the present invention, by controlling CO in the carbonization tank 2 The carbonization degree of the ceramsite is controlled to be 20% -30% by concentration, carbonization temperature and carbonization time; meanwhile, the grain diameter of the carbonized and modified ceramsite is 1 to 4mm, water absorption of 1-3% and Mohs hardness of 6-8.
Further, parameters of the carbonization box are set as CO 2 The concentration is 2-100%, the carbonization temperature is 5-50 ℃, the relative humidity is 30-70%, and the carbonization treatment time is 24h.
Further, the culturing mode of bacillus includes that bacillus bacterial liquid is placed in a culture medium for culturing, and then bacillus suspension is prepared through centrifugal precipitation and re-suspension. Preferably, the bacillus strain is cultured in LB liquid culture medium with pH value of 7-7.5 d for 24-26 h until the bacterial liquid OD 400 The value is 2.650-2.850, the enzyme activity is 0.025-0.029 mu mol/min, and the bacillus suspension is supported by centrifugal precipitation and re-suspension.
The culture conditions provided by the invention can enable the concentration and activity of microorganisms to be more suitable for the internal and external environments of the paving structure, and the efficiency of producing repairing substances under the biochemical action is highest.
Further, the mixing amount of the bacteria-carrying ceramsite is 8-20% of the mass of the concrete.
Further, according to the mass ratio, the concrete ingredients are water, sand, natural crushed stone, cement= (0.4-0.5), 3.0-3.4, 1.5-2.0 and 1.0-1.6.
Further, the materials of the self-repairing PA-10 pavement layer comprise high-viscosity modified asphalt, basalt aggregate, polyester fiber and asphalt repairing capsules. Wherein, basalt aggregate is divided into coarse aggregate and fine aggregate and mineral powder; the mass ratio of the material is preferably that coarse aggregate, fine aggregate, mineral powder, asphalt repairing capsule= (78-81), asphalt repairing capsule= (12-14.5), asphalt repairing capsule= (1.5-3), oil stone ratio (2-3) is 5.1% -5.5%, and the mixing amount of polyester fiber is 0.2% -0.6%.
After the preparation of the formula, the void ratio of the self-repairing PA-10 pavement layer is 14-22%, and the void ratio is controlled within the range, so that sufficient moisture and air are provided for bacillus in the ceramsite under the condition of ensuring the strength of the pavement layer, and the bioremediation capability of the bacillus is effectively improved.
Further, the asphalt repairing capsule takes an asphalt regenerant as a capsule core and sodium alginate colloid as an outer wall.
Further, the asphalt recycling agent comprises the following components in parts by weight: 10-20 parts of soybean vegetable oil, 10-15 parts of corn vegetable oil, 1-5 parts of waste rubber powder, 0.5-2 parts of epoxidized soybean oil, 0.5-20 parts of alkyl substituted phenol polyoxyethylene ether and 1-10 parts of dialkyl dithiophosphate.
Wherein, the appearance of the asphalt regenerant is brown-black, the ph value is 9.5-10.5, the active matter content is 40-60%, and the Engrara viscosity E25 is 6-7.
Further, the preparation method of the asphalt recycling agent comprises the following steps: the materials are mixed according to the proportion, heated to 100-120 ℃, kept at constant temperature and stirred for 20-30 min at the rotating speed of 600-800 r/min to obtain the product.
Further, the preparation method of the asphalt repairing capsule comprises the following steps: mixing 1-2 parts of asphalt regenerant and 6-8 parts of sodium alginate according to mass fraction, and stirring the mixture for 10-20 min at a rotating speed of 3000-5000 rpm to obtain emulsion; titrating the emulsion into a calcium chloride solution with the concentration of 2-4%, and stirring for 2 hours at the rotating speed of 600-800 rpm; and finally, ventilating the calcium chloride solution containing the emulsion at room temperature to remove water to obtain the asphalt repairing capsule.
Further, the softening point of the high-viscosity modified asphalt is 106-108 ℃, the penetration is 46-47 cm, the ductility is 88-90 cm, the viscosity is 56000-58000 pa.s at 60 ℃, and the stability is 0.1 ℃.
Further, the material of the high-temperature reactive bonding layer provided by the invention comprises the following components in parts by weight: 70-80 parts of linear phenolic polyglycidyl ether, 10-20 parts of monofunctional reactive diluent, 1-3 parts of epoxy silane coupling agent, 10-20 parts of linear difunctional secondary amine curing agent, 3-10 parts of adipic acid dihydrazide curing agent and 1-2 parts of anti-settling agent.
Further, the wet bonding resin layer provided by the invention comprises the following components in parts by weight: 65-70 parts of epoxy resin, 12-16 parts of polyamide curing agent, 5-10 parts of polyisocyanate adhesive, 2-5 parts of polyether resin active toughening agent and 2-5 parts of quartz powder water-based reinforcing agent.
The second purpose of the invention is to provide a construction method of the self-repairing drainage pavement structure of the concrete bridge deck, which has the same technical effects.
The technical aim of the invention is realized by the following technical scheme:
the invention provides a construction method of a self-repairing drainage pavement structure of a concrete bridge deck, which comprises the following steps:
s1, milling and planing a cement concrete slab base layer; preferably, the milling is super finish milling, the milling depth is 2-3 mm, and after the milling is finished, the surface is subjected to shot blasting treatment to obtain a concrete panel base layer with good roughness and cleanness;
s2, spraying the material of the wet bonding resin layer on the cement concrete slab base layer to form the wet bonding resin layer; specifically, the wet bonding resin layer is made of 1-2 kg/m material within 2h after the shot blasting treatment 2 Spraying on the concrete panel base layer;
s3, paving the material of the self-repairing porous concrete paving layer on the wet bonding resin layer to form the self-repairing porous concrete paving layer;
s4, after removing sundries on the surface of the self-repairing porous concrete pavement layer, uniformly coating the material of the high-temperature reactive bonding layer on the surface of the self-repairing porous concrete pavement layer to form the high-temperature reactive bonding layer; the specific coating weight is 0.5-0.6 kg/m 2 Uniformly coating;
s5, paving a self-repairing PA-10 paving layer material on the surface of the high-temperature reactive bonding layer to form the self-repairing PA-10 paving layer.
Further, the specific operation in step S3 is as follows:
s31, stirring the dry blend for 1min by adopting a horizontal stirrer at a speed of 25-35 rpm/min;
s32, adding mixing water, and wet-mixing for 5-8 min to form a material of the self-repairing porous concrete pavement layer;
s33, paving, wherein the vibrating interval is controlled to be 0.5-1.0 m, and the vibrating time at each position is 10-20S;
s34, after compaction by vibration, carrying out surface calendaring treatment before initial setting, and carrying out napping treatment on the surface after final setting, so as to enhance adhesive force and enable interlayer to be better combined;
and S35, spraying water mist, and coating a film for moisturizing and curing for 14d to form the self-repairing porous concrete pavement layer.
Further, the specific operation in step S5 is as follows:
s51, weighing coarse aggregates, fine aggregates, mineral powder, asphalt repairing capsules and polyester fibers according to mass;
s52, dry-mixing for 15-25S by adopting a horizontal mixer at the speed of 30-45 rpm/min;
s53, adding high-viscosity modified asphalt according to the oil-stone ratio of 5.1-5.5%, mixing, and wet mixing for 40-55S to form a self-repairing PA-10 mixture;
s54, paving, wherein the paving temperature is controlled to be above 165 ℃, the initial pressing temperature is controlled to be above 155 ℃, and a steel wheel road roller is adopted for initial pressing and re-pressing, and the times of rolling are 2-4 times;
and S55, final pressing is carried out by adopting a rubber-tyred roller, and the rolling times are 1-2 times, so that the self-repairing PA-10 pavement layer is formed.
Further, the self-repairing porous concrete pavement layer needs to be paved within 1h of the wet bonding resin layer.
Furthermore, the paving of the self-repairing PA-10 paving layer is required to be carried out within 1h after the coating of the high-temperature reactive bonding layer.
In summary, the invention has the following beneficial effects:
(1) The invention adopts the wet bonding resin layer which is cured synchronously with the cement concrete pavement and the high-temperature reactive bonding layer which is cured synchronously with the asphalt concrete as the waterproof bonding layer, and enhances the interlayer connection of the pavement, thereby improving the integral interface connection of the pavement, the cooperative stability of the structure and the interlayer anti-slip performance.
(2) The porous cement concrete structure is doped with the ceramsite of the preloaded microorganism to realize the self-repairing function of cracking diseases, and the upper layer large-gap self-repairing PA-10 structure is combined to meet the air and water requirements of the microorganism, so that the self-repairing action depth of the microorganism is effectively improved, and the cooperative consistency of the drainage and the self-repairing function of the upper and lower layers is realized.
(3) Compared with a full-thickness concrete pavement structure, the self-repairing drainage pavement structure for the concrete bridge deck has the advantages that the porous concrete pavement lower layer is adopted to reinforce the concrete bridge deck, and the PA-10 asphalt concrete pavement upper layer is adopted to reduce bridge deck load and ensure safety and comfort of driving.
Drawings
Fig. 1 is a schematic diagram of a self-repairing drainage pavement structure of a concrete bridge deck in an embodiment of the invention.
Reference numerals
1-cement concrete slab base layer, 2-wet bonding resin layer, 3-self-repairing porous concrete pavement layer, 4-high temperature reaction type bonding layer and 5-self-repairing PA-10 pavement layer.
Detailed Description
In order to further explain the technical means and effects adopted by the invention to achieve the preset aim, the concrete bridge surface self-repairing drainage pavement structure and the construction method thereof provided by the invention are provided, and the concrete implementation mode, the characteristics and the effects are detailed later.
Self-repairing drainage pavement structure of concrete bridge deck and construction method thereof
As shown in fig. 1, in the specific embodiment, the total thickness of the paving structure is 5-10 cm, and the paving structure is sequentially a cement concrete slab base 1 from bottom to top; a wet adhesive resin layer 2 having a thickness of 1 to 2mm; the thickness of the self-repairing porous concrete pavement layer 3 is 4-6 cm; the thickness of the high-temperature reactive bonding layer 4 is 1-2 mm; the thickness of the self-repairing PA-10 pavement layer 5 is 3-5 cm.
Wherein, the materials of the wet bonding resin layer 2 comprise the following components in parts by weight: 65-70 parts of epoxy resin, 12-16 parts of polyamide curing agent, 5-10 parts of polyisocyanate adhesive, 4-6 parts of butyl glycidyl ether reactive diluent, 2-5 parts of polyether resin reactive flexibilizer and 2-5 parts of quartz powder water-based reinforcing agent.
The materials of the self-repairing porous concrete pavement layer 3 comprise: the concrete and the bacteria-carrying ceramsite, wherein the mixing amount of the bacteria-carrying ceramsite is 8-20% of the mass of the concrete; the concrete ingredients are, by mass, water, sand, natural crushed stone, cement= (0.4-0.5), 3.0-3.4, 1.5-2.0 and 1.0-1.6.
The bacteria-carrying ceramsite consists of a carbonized and modified porous ceramsite carrier and bacillus loaded on the ceramsite carrier, and is prepared by soaking the carbonized and modified porous ceramsite in bacillus suspension for 30min under vacuum negative pressure, fully adsorbing, and then placing in an oven for constant temperature drying.
The carbonized modified porous ceramsite has the particle size of 1-4 mm, the water absorption rate of 1-3%, the water content of 0.3-1.3%, the Mohs hardness of 6-8 and the carbonization degree of 20-30%; uniformly spreading the screened porous ceramsite, placing into a carbonization box, and setting CO of the carbonization box 2 The concentration is 2-100%, the carbonization temperature is 5-50 ℃ and the relative humidity is 30-70%, and the carbonization treatment is carried out for 24 hours.
The bacillus bacterial liquid is obtained by culturing bacillus strains in LB liquid culture medium at a culture temperature of 35 ℃ for 24 hours, and then preparing bacillus suspension by centrifugal precipitation and re-suspension. Specifically, bacillus suspension is cultured for 24-26 hours in LB liquid culture medium with pH value of 7-7.5 d by bacillus strain, and the bacterial liquid OD is obtained 400 The value is 2.650-2.850, the enzyme activity is 0.025-0.029 mu mol/min, and then bacillus suspension is prepared by centrifugal precipitation and re-suspension, at the moment, the microorganism concentration and activity are better, and the efficiency of producing repairing substances under the biochemical action is highest.
The high-temperature reactive bonding layer 4 comprises the following components in parts by weight: 70-80 parts of linear phenolic aldehyde polyglycidyl ether, 10-20 parts of monofunctional reactive diluent, 1-3 parts of epoxy silane coupling agent, 10-20 parts of linear difunctional secondary amine curing agent, 3-10 parts of adipic acid dihydrazide curing agent and 1-2 parts of anti-settling agent.
The self-repairing PA-10 pavement layer 5 comprises high-viscosity modified asphalt, basalt aggregate, polyester fiber and asphalt repairing capsules. Wherein the basalt aggregate is divided into coarse aggregate and fine aggregate and mineral powder.
The mass ratio of the materials of the self-repairing PA-10 pavement layer 5 is preferably that coarse aggregate, fine aggregate, mineral powder, asphalt repairing capsule= (78-81), 12-14.5, 1.5-3, 2-3, oil-stone ratio of 5.1-5.5% and polyester fiber blending amount of 0.2-0.6%.
The softening point of the high-viscosity modified asphalt is 106-108 ℃, the penetration is 46-47 cm, the ductility is 88-90 cm, the viscosity is 56000 pa.s-58000 pa.s at 60 ℃, and the stability is 0.1 ℃.
The asphalt repairing capsule takes asphalt regenerant as a capsule core and sodium alginate colloid as an outer wall.
The appearance of the asphalt regenerant is brown-black, the ph value is 9.5-10.5, the active matter content is 40-60%, and the Engrara viscosity E25 is 6-7; the coating comprises the following components in parts by weight: 10-20 parts of soybean vegetable oil, 10-15 parts of corn vegetable oil, 1-5 parts of waste rubber powder, 0.5-2 parts of epoxidized soybean oil, 0.5-20 parts of alkyl substituted phenol polyoxyethylene ether and 1-10 parts of dialkyl dithiophosphate.
The preparation method of the asphalt repairing capsule comprises the following steps: mixing 6-8 parts of sodium alginate solution with 1-2 parts of asphalt regenerant according to parts by weight, stirring for 10-20 min at a rotating speed of 3000-5000 rmp to an opaque state, then titrating the emulsion into a calcium chloride solution with a concentration of 2-4%, stirring for 2h at a rotating speed of 600-800 rmp, and finally ventilating the calcium chloride solution containing the emulsion at room temperature to remove water to obtain the asphalt repair capsule.
The embodiment also provides a construction method of the self-repairing drainage pavement structure of the concrete bridge deck, which comprises the following operation steps:
s1, milling and planing a cement concrete slab base layer 1;
s2, spraying the material of the wet bonding resin layer 2 on the cement concrete slab base layer 1 to form the wet bonding resin layer 2;
s3, paving the material of the self-repairing porous concrete paving layer 3 on the wet bonding resin layer 2 to form the self-repairing porous concrete paving layer 3;
s4, after removing surface impurities of the self-repairing porous concrete pavement layer 3, uniformly coating the surface of the material of the high-temperature reactive bonding layer 4 to form the high-temperature reactive bonding layer 4;
s5, paving a self-repairing PA-10 paving layer 5 material on the surface of the high-temperature reactive bonding layer 4 to form the self-repairing PA-10 paving layer 5.
The specific operation of step S3 is as follows:
s31, stirring the dry blend for 1min by adopting a horizontal stirrer at a speed of 25-35 rpm/min;
s32, adding mixing water, and wet-mixing for 5-8 min to form a material of the self-repairing porous concrete pavement layer;
s33, paving, wherein the vibrating interval is controlled to be 0.5-1.0 m, and the vibrating time at each position is 10-20S;
s34, after compaction by vibration, carrying out surface calendaring treatment before initial setting, and carrying out napping treatment on the surface after final setting, so as to enhance adhesive force and enable interlayer to be better combined;
and S35, spraying water mist, and coating and moisturizing and curing for 14d to form the self-repairing porous concrete pavement layer 3.
The specific operation of step S5 is:
s51, weighing coarse aggregates, fine aggregates, mineral powder, asphalt repairing capsules and polyester fibers according to mass;
s52, dry-mixing for 15-25S by adopting a horizontal mixer at the speed of 30-45 rpm/min;
s53, adding high-viscosity modified asphalt according to the oil-stone ratio of 5.1-5.5%, mixing, and wet mixing for 40-55S to form a self-repairing PA-10 mixture;
s54, paving, wherein the paving temperature is controlled to be above 165 ℃, the initial pressing temperature is controlled to be above 155 ℃, and a steel wheel road roller is adopted for initial pressing and re-pressing, and the times of rolling are 2-4 times;
and S55, final pressing is carried out by adopting a rubber-tyred roller, and the rolling times are 1-2 times, so that the self-repairing PA-10 pavement layer 5 is formed.
It should be noted that the laying of the self-repairing porous concrete pavement layer is required to be within 1h of the formation of the wet bonding resin layer; the self-repairing PA-10 paving layer is paved within 1h after the high-temperature reactive bonding layer is coated.
Example 1: self-repairing drainage pavement structure of concrete bridge deck and construction method thereof
Aiming at the pavement of a concrete overhead bridge deck of Jiangsu, the embodiment has the advantages that the crack disease of the bridge deck pavement is serious, the bridge deck pavement is easy to jolt in the running process of a vehicle, the maintenance investment is large, and the running safety and the use economy are seriously influenced. The paving structure and the construction method of the embodiment are adopted to re-pave the pavement, and the paving structure and the construction method are specifically as follows.
The pavement structure of this embodiment is: sequentially from bottom to top, a cement concrete slab base layer 1; a wet adhesive resin layer 2 having a thickness of 1 to 2mm; the self-repairing porous concrete pavement layer 3 has the thickness of 6cm; the thickness of the high-temperature reactive bonding layer 4 is 1-2 mm; and the thickness of the self-repairing PA-10 pavement layer 5 is 4cm.
The materials used in this example are as follows, calculated according to parts by weight:
the wet adhesive resin layer 2 is made of: 65 parts of epoxy resin, 13 parts of polyamide curing agent, 6 parts of polyisocyanate adhesive, 4 parts of butyl glycidyl ether reactive diluent, 2 parts of polyether resin reactive toughening agent and 3 parts of quartz powder water-based reinforcing agent.
The self-repairing porous concrete pavement layer 3 is made of the following materials: 13 parts of Portland cement, 16 parts of natural crushed stone, 34 parts of sand and 12 parts of bacteria-carrying ceramsite.
The bacteria-carrying ceramsite consists of a carbonized and modified porous ceramsite carrier and bacillus loaded on the ceramsite carrier, and is prepared by soaking the carbonized and modified porous ceramsite in bacillus suspension for 30min under vacuum negative pressure, fully adsorbing, and then placing in an oven for constant temperature drying.
The carbonized modified porous ceramsite has the particle size of 1-4 mm, the water absorption rate of 1-3%, the water content of 0.3-1.3%, the Mohs hardness of 6-8 and the carbonization degree of 20-30%; uniformly spreading the screened porous ceramsite, placing into a carbonization box, and setting CO of the carbonization box 2 The concentration is 35%, the carbonization temperature is 30 ℃, the relative humidity is 55%, and the carbonization treatment is carried out for 24 hours.
The bacillus bacterial liquid is obtained by culturing bacillus strains in LB liquid culture medium at a culture temperature of 35 ℃ for 24 hours, and then preparing bacillus suspension by centrifugal precipitation and re-suspension. Specifically, the bacillus bacterial suspension is prepared from bacillus strainCulturing in LB liquid culture medium with pH value of 7.5 for 26 hr until the bacterial liquid OD 400 The value was 2.800 and the enzyme activity was 0.028. Mu. Mol/min, followed by centrifugation and re-suspension to prepare a Bacillus suspension.
The materials of the high temperature reactive bonding layer 4 are as follows: 70 parts of novolac polyglycidyl ether, 10 parts of monofunctional reactive diluent, 1 part of epoxy silane coupling agent, 10 parts of novolac difunctional secondary amine curing agent, 4 parts of adipic acid dihydrazide curing agent and 1 part of anti-settling agent.
The self-repairing PA-10 pavement layer 5 is made of the following materials: 5.4% of high-viscosity modified asphalt with an oil-stone ratio, 78 parts of coarse aggregate, 12 parts of fine aggregate, 2 parts of mineral powder, 2 parts of asphalt repairing capsules and 0.3% of polyester fiber; firstly, dry-mixing the coarse aggregate, the fine aggregate, the mineral powder and the asphalt repairing capsule of basalt for 15s by adopting a horizontal mixer at the speed of 45 revolutions per minute, then adding high-viscosity modified asphalt into the mixture according to the oil-stone ratio of 5.4% for mixing, and wet-mixing for 45s to form the self-repairing PA-10 mixture.
The softening point of the high-viscosity modified asphalt is 106-108 ℃, the penetration is 46-47 cm, the ductility is 88-90 cm, the viscosity is 56000 pa.s-58000 pa.s at 60 ℃, and the stability is 0.1 ℃.
The asphalt repairing capsule takes asphalt regenerant as a capsule core and sodium alginate colloid as an outer wall.
The appearance of the asphalt regenerant is brown-black, the ph value is 9.5-10.5, the active matter content is 40-60%, and the Engrara viscosity E25 is 6-7; the coating comprises the following components in parts by weight: 15 parts of soybean vegetable oil, 10 parts of corn vegetable oil, 2 parts of waste rubber powder, 0.5 part of epoxidized soybean oil, 5 parts of alkyl-substituted phenol polyoxyethylene ether and 3 parts of dialkyl dithiophosphate.
The preparation method of the asphalt repairing capsule comprises the following steps: mixing 6 parts of sodium alginate solution and 1 part of asphalt regenerant according to parts by weight, stirring for 20min at 4000rmp to an opaque state, then titrating the emulsion into a calcium chloride solution with 2% concentration, stirring for 2h at 800rmp, and finally ventilating the calcium chloride solution containing the emulsion at room temperature to remove water to obtain the asphalt repair capsule.
The construction method comprises the following steps:
s1, milling and digging to remove original pavement, performing 2mm super finish milling and planing on a concrete bridge deck, and then performing shot blasting treatment on the deck to obtain a rough and clean concrete deck base layer 1;
s2, milling and blasting the concrete panel, wherein the weight of the concrete panel base layer 1 is 1.8kg/m within 2 hours after milling and blasting the concrete panel 2 Spraying a material of the wet bonding resin layer;
s3, stirring the dry mixed material for 1min by adopting a horizontal stirrer at the speed of 35 r/min, adding stirring water, wet-mixing for 6min to form self-repairing porous concrete, paving the self-repairing porous concrete on a wet bonding resin layer, controlling the vibration interval to be 0.6m, vibrating for 15S each time, carrying out surface calendering treatment before initial setting after compacting by vibration, carrying out napping treatment on the surface after final setting, and then spraying water mist and laminating for moisture conservation for 14d;
s4, removing floating paste and loose impurities on the surface of the self-repairing porous concrete pavement layer 3, uniformly coating the material of the high-temperature reactive bonding layer, and controlling the coating weight to be 0.5-0.6 kg/m 2 Forming a high temperature reactive bonding layer 4;
s5, paving a self-repairing PA-10 paving layer 5 in the high-temperature reaction type bonding layer 4 coating process for 1h, paving a self-repairing PA-10 mixture on the high-temperature reaction type bonding layer 4, controlling the paving temperature to be above 165 ℃, controlling the initial pressure temperature to be above 155 ℃, performing initial pressure and re-pressure by adopting a steel wheel road roller, performing rolling times for 3 times, performing final pressure by adopting a rubber wheel road roller, and performing rolling times for 2 times to form the self-repairing PA-10 paving layer 5.
The pavement structure provided by the embodiment has the advantages that no crack disease is generated in service for 1 year, the problem of crack disease is effectively solved, the rainfall weather drainage effect is obvious, the transverse force coefficient is 57, the construction depth is 1.1mm, and the driving safety is effectively ensured. The test data are shown in table 1, compared to prior art concrete deck pavement.
TABLE 1 comparison of performance data for the pavement structure of example 1 and prior art pavement structure
From the above, the self-repairing drainage pavement structure of the concrete bridge deck provided by the embodiment has obviously better performance than the pavement of the concrete bridge deck in the prior art, and has industrial value.
Example 2: self-repairing drainage pavement structure of concrete bridge deck and construction method thereof
The self-repairing drainage pavement structure of the concrete bridge deck is characterized in that the cement concrete slab base 1 is arranged from bottom to top in sequence; a wet adhesive resin layer 2 having a thickness of 1 to 2mm; the self-repairing porous concrete pavement layer 3 has the thickness of 5cm; the thickness of the high-temperature reactive bonding layer 4 is 1-2 mm; and the thickness of the self-repairing PA-10 pavement layer 5 is 5cm.
The materials used in this example are as follows, calculated according to parts by weight:
the wet adhesive resin layer 2 is made of: 65 parts of epoxy resin, 13 parts of polyamide curing agent, 6 parts of polyisocyanate adhesive, 4 parts of butyl glycidyl ether reactive diluent, 2 parts of polyether resin reactive toughening agent and 3 parts of quartz powder water-based reinforcing agent.
The self-repairing porous concrete pavement layer 3 is made of the following materials: 14 parts of Portland cement, 16 parts of natural crushed stone, 33 parts of sand and 15 parts of bacteria-carrying ceramsite.
The bacteria-carrying ceramsite consists of a carbonized and modified porous ceramsite carrier and bacillus loaded on the ceramsite carrier, and is prepared by soaking the carbonized and modified porous ceramsite in bacillus suspension for 30min under vacuum negative pressure, fully adsorbing, and then placing in an oven for constant temperature drying.
The carbonized modified porous ceramsite has the particle size of 1-4 mm, the water absorption rate of 1-3%, the water content of 0.3-1.3%, the Mohs hardness of 6-8 and the carbonization degree of 20-30%; uniformly spreading the screened porous ceramsite, placing into a carbonization box, and setting CO of the carbonization box 2 The concentration is 30%, the carbonization temperature is 25 ℃, the relative humidity is 40%, and the carbonization treatment is carried out for 24 hours.
The bacillus bacterial liquid is obtained by culturing bacillus strain in LB liquid culture medium at 35 deg.C for 24 hr, and centrifuging to precipitateAnd re-suspending to form a bacillus suspension. Specifically, the bacillus suspension is cultured for 25 hours in LB liquid culture medium with pH value of 7.5 by bacillus strain, and the bacterial liquid OD is obtained 400 The value was 2.850 and the enzyme activity was 0.027. Mu. Mol/min, followed by centrifugation and re-suspension to prepare a Bacillus suspension.
The materials of the high temperature reactive bonding layer 4 are as follows: 70 parts of novolac polyglycidyl ether, 10 parts of monofunctional reactive diluent, 1 part of epoxy silane coupling agent, 10 parts of novolac difunctional secondary amine curing agent, 4 parts of adipic acid dihydrazide curing agent and 1 part of anti-settling agent.
The self-repairing PA-10 pavement layer 5 is made of the following materials: high-viscosity modified asphalt with an oil-stone ratio of 5.4%, 73 parts of basalt coarse aggregate, 13 parts of fine aggregate, 3 parts of mineral powder, 3 parts of asphalt repairing capsules and 0.3% of Shandong polyester fiber; firstly, dry-mixing the coarse aggregate, the fine aggregate, the mineral powder and the asphalt repairing capsule of basalt for 15s by adopting a horizontal mixer at the speed of 45 revolutions per minute, then adding high-viscosity modified asphalt into the mixture according to the oil-stone ratio of 5.4% for mixing, and wet-mixing for 45s to form the self-repairing PA-10 mixture.
The softening point of the high-viscosity modified asphalt is 106-108 ℃, the penetration is 46-47 cm, the ductility is 88-90 cm, the viscosity is 56000 pa.s-58000 pa.s at 60 ℃, and the stability is 0.1 ℃.
The asphalt repairing capsule takes asphalt regenerant as a capsule core and sodium alginate colloid as an outer wall.
The appearance of the asphalt regenerant is brown-black, the ph value is 9.5-10.5, the active matter content is 40-60%, and the Engrara viscosity E25 is 6-7; the coating comprises the following components in parts by weight: 10 parts of soybean vegetable oil, 12 parts of corn vegetable oil, 1 part of waste rubber powder, 1 part of epoxidized soybean oil, 8 parts of alkyl substituted phenol polyoxyethylene ether and 2 parts of dialkyl dithiophosphate.
The preparation method of the asphalt repairing capsule comprises the following steps: mixing 8 parts of sodium alginate solution with 1.5 parts of asphalt regenerant according to parts by weight, stirring for 20min to an opaque state at a speed of 3500rmp, then titrating the emulsion into a 3% concentration calcium chloride solution, stirring for 2h at a speed of 650rmp, and finally ventilating the calcium chloride solution containing the emulsion at room temperature to remove water to obtain the asphalt repair capsule.
The construction method comprises the following steps:
s1, milling and digging to remove original pavement, performing 2mm super finish milling and planing on a concrete bridge deck, and then performing shot blasting treatment on the deck to obtain a rough and clean concrete deck base layer 1;
s2, milling and blasting the concrete panel, wherein the weight of the concrete panel base layer 1 is 1.8kg/m within 2 hours after milling and blasting the concrete panel 2 Spraying a material of the wet bonding resin layer;
s3, stirring the dry mixed material for 1min by adopting a horizontal stirrer at the speed of 35 r/min, adding stirring water, wet-mixing for 6min to form self-repairing porous concrete, paving the self-repairing porous concrete on a wet bonding resin layer, controlling the vibration interval to be 0.8m, vibrating for 15S each time, carrying out surface calendering treatment before initial setting after compacting by vibration, carrying out napping treatment on the surface after final setting, and then spraying water mist and laminating for moisture conservation for 14d;
s4, removing floating paste and loose impurities on the surface of the self-repairing porous concrete pavement layer 3, uniformly coating the material of the high-temperature reactive bonding layer, and controlling the coating weight to be 0.6kg/m 2 Forming a high temperature reactive bonding layer 4;
s5, paving a self-repairing PA-10 paving layer 5 in the high-temperature reaction type bonding layer 4 coating process for 1h, paving a self-repairing PA-10 mixture on the high-temperature reaction type bonding layer 4, controlling the paving temperature to be above 165 ℃, controlling the initial pressure temperature to be above 155 ℃, performing initial pressure and re-pressure by adopting a steel wheel road roller, performing rolling times for 3 times, performing final pressure by adopting a rubber wheel road roller, and performing rolling times for 1 time to form the self-repairing PA-10 paving layer 5.
The paving structure provided by the embodiment has the advantages that the interlayer drawing strength is higher than 2.5MPa, only a small amount of microcrack diseases are generated in service for 2 years, no interlayer pushing diseases are generated, and the problems of interlayer pushing and crack diseases are effectively solved; the drainage effect in rainfall weather is obvious, the transverse force coefficient is 55, the construction depth is 1.01mm, and the driving safety is effectively ensured.
The performance data are shown in Table 2, compared to prior art concrete deck pavement structures.
TABLE 2 comparison of the Performance of example 2 and the prior art concrete bridge deck pavement structure
From the above data, the pavement structure provided by the invention can improve the drawing strength and the construction depth, and can also improve the road surface damage condition index.
The present invention is not limited to the above-mentioned embodiments, but is not limited to the above-mentioned embodiments, and any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical matters of the present invention can be made by those skilled in the art without departing from the scope of the present invention.
Claims (10)
1. The utility model provides a concrete bridge face self-repairing drainage structure of mating formation which characterized in that, the structure of mating formation includes from the bottom up in proper order: a cement concrete slab base layer, a wet bonding resin layer, a self-repairing porous concrete pavement layer, a high-temperature reaction type bonding layer and a self-repairing PA-10 pavement layer;
wherein, the materials of the self-repairing porous concrete pavement layer comprise concrete ingredients and bacteria-carrying ceramsite;
the bacteria-carrying ceramsite is prepared by carbonizing and modifying ceramsite and carrying bacillus.
2. The concrete bridge surface self-repairing drainage pavement structure of claim 1, wherein the method for loading bacillus by the bacteria-carrying ceramsite comprises immersing carbonized modified porous ceramsite in bacillus suspension under vacuum negative pressure, and drying.
3. The concrete bridge surface self-repairing drainage pavement structure according to claim 2, wherein the carbonization modification method of the porous ceramsite comprises the steps of carbonizing the porous ceramsite in a carbonization tank, and according to CO in the carbonization tank 2 The carbonization degree of the porous ceramsite is regulated by the concentration, the carbonization temperature and the carbonization time.
4. The concrete bridge surface self-repairing drainage pavement structure according to claim 2, wherein the culturing mode of the bacillus comprises the steps of culturing bacillus liquid in a culture medium, and preparing bacillus suspension through centrifugal precipitation and re-suspension.
5. The self-repairing drainage pavement structure of the concrete bridge deck according to claim 1, wherein the self-repairing PA-10 pavement layer comprises high-viscosity modified asphalt, basalt aggregate, polyester fiber and asphalt repairing capsules.
6. The self-repairing drainage pavement structure of the concrete bridge deck according to claim 5, wherein the asphalt repairing capsule takes an asphalt regenerant as a capsule core and sodium alginate colloid as an outer wall.
7. The self-repairing drainage pavement structure of the concrete bridge deck according to claim 6, wherein the asphalt regenerant comprises the following components in parts by weight: 10-20 parts of soybean vegetable oil, 10-15 parts of corn vegetable oil, 1-5 parts of waste rubber powder, 0.5-2 parts of epoxidized soybean oil, 0.5-20 parts of alkyl-substituted phenol polyoxyethylene ether and 1-10 parts of dialkyl dithiophosphate.
8. The self-repairing drainage pavement structure of the concrete bridge deck according to claim 1, wherein the materials of the high-temperature reactive bonding layer comprise the following components in parts by weight: 70-80 parts of novolac polyglycidyl ether, 10-20 parts of monofunctional reactive diluent, 1-3 parts of epoxy silane coupling agent, 10-20 parts of novolac difunctional secondary amine curing agent, 3-10 parts of adipic acid dihydrazide curing agent and 1-2 parts of anti-settling agent.
9. The self-repairing drainage pavement structure of the concrete bridge deck, according to claim 1, is characterized in that the materials of the wet bonding resin layer comprise the following components in parts by weight: 65-70 parts of epoxy resin, 12-16 parts of polyamide curing agent, 5-10 parts of polyisocyanate adhesive, 2-5 parts of polyether resin active toughening agent and 2-5 parts of quartz powder water-based reinforcing agent.
10. The construction method of the self-repairing drainage pavement structure of the concrete bridge deck according to any one of claims 1 to 9, which is characterized by comprising the following operation steps:
s1, milling and planing a cement concrete slab base layer;
s2, spraying the material of the wet bonding resin layer on the cement concrete slab base layer to form the wet bonding resin layer;
s3, paving the material of the self-repairing porous concrete paving layer on the wet bonding resin layer to form the self-repairing porous concrete paving layer;
s4, after removing sundries on the surface of the self-repairing porous concrete pavement layer, uniformly coating the material of the high-temperature reactive bonding layer on the surface of the self-repairing porous concrete pavement layer to form the high-temperature reactive bonding layer;
s5, paving a self-repairing PA-10 paving layer material on the surface of the high-temperature reactive bonding layer to form the self-repairing PA-10 paving layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310972383.8A CN116971272A (en) | 2023-08-03 | 2023-08-03 | Self-repairing drainage pavement structure of concrete bridge deck and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310972383.8A CN116971272A (en) | 2023-08-03 | 2023-08-03 | Self-repairing drainage pavement structure of concrete bridge deck and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116971272A true CN116971272A (en) | 2023-10-31 |
Family
ID=88482952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310972383.8A Pending CN116971272A (en) | 2023-08-03 | 2023-08-03 | Self-repairing drainage pavement structure of concrete bridge deck and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116971272A (en) |
-
2023
- 2023-08-03 CN CN202310972383.8A patent/CN116971272A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103866667B (en) | Half flexible Supporting Load Pavement paving structure | |
| CN110451877B (en) | Building waste concrete-brick mixed self-repairing concrete and preparation method thereof | |
| CN111018423A (en) | Coal gangue-based composite geopolymer grouting filling material and preparation method thereof | |
| CN114149226B (en) | Wood nano-cellulose modified cemented filling material for deep structure filling and preparation method thereof | |
| CN114644493A (en) | High-performance water-based epoxy modified emulsified asphalt micro-surfacing material and preparation method thereof | |
| CN114890736A (en) | Modified basalt fiber inorganic artificial stone and preparation method thereof | |
| CN112694304A (en) | Cold recycling and old asphalt pavement cold joint adhesive for pavement reconstruction and extension | |
| CN113698870B (en) | Efficient reduction repairing agent for asphalt pavement, preparation method and application | |
| CN110627417A (en) | High-toughness fabricated asphalt composite pavement precast block and preparation method thereof | |
| CN111559895B (en) | Low-water-absorption regenerated GRC material and preparation method thereof | |
| CN116971272A (en) | Self-repairing drainage pavement structure of concrete bridge deck and construction method thereof | |
| CN114835439B (en) | Epoxy asphalt steel slag concrete ultrathin wearing layer and preparation method thereof | |
| CN115108780B (en) | Energy-saving environment-friendly high-impact-resistance non-autoclaved tubular pile concrete material and preparation method thereof | |
| CN111333387A (en) | Self-repairing concrete, mixed coarse and fine aggregate fabricated comprehensive pipe gallery and preparation method | |
| CN114853411B (en) | High-damping full-recycled aggregate concrete ink material for 3D printing and preparation method | |
| CN112897953B (en) | Recycled concrete with impermeability and preparation method thereof | |
| CN115259893A (en) | Light environment-friendly building material | |
| CN114507055A (en) | High-permeability blended hydraulic lime repair slurry prepared from superfine volcanic ash powder | |
| CN113004014A (en) | Application of carboxylated nano-cellulose in pervious concrete, pervious concrete and preparation method thereof | |
| KR102651223B1 (en) | Modified emulsified asphalt concrete composition with excellent room temperature workability and construction method using the same | |
| CN112028545B (en) | Green road paving material and preparation method thereof | |
| CN114956668B (en) | Preparation method and application of normal-temperature semi-flexible composite material | |
| CN117105596B (en) | Recycled concrete and preparation method thereof | |
| CN115340341B (en) | Cold-resistant mortar for plate-type ballastless track filling layer and preparation method thereof | |
| CN111875275B (en) | Application of epoxy propane saponification waste residue in curing of base layer paving material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |