CN104652269B - A kind of deck installation structure of orthotropic plate - Google Patents
A kind of deck installation structure of orthotropic plate Download PDFInfo
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- CN104652269B CN104652269B CN201510072707.8A CN201510072707A CN104652269B CN 104652269 B CN104652269 B CN 104652269B CN 201510072707 A CN201510072707 A CN 201510072707A CN 104652269 B CN104652269 B CN 104652269B
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- asphalt
- hot melt
- high elasticity
- formation
- paving structure
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- 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
-
- 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
-
- 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
- E01D2101/30—Metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses the deck installation structure of a kind of orthotropic plate, its paving structure includes that mat formation lower floor, modified emulsified asphalt tack coat and a high elasticity modified asphalt containing mica epoxy anticorrosive coat, a solvent-free epoxy resin waterproof layer, a hot melt granule tack coat, a high elasticity modified asphalt is mated formation upper strata from bottom to top, and total pavement thickness is 6 8cm；Wherein, hot melt granule is the polymeric particles that softening point is more than 150 DEG C；High elasticity modified asphalt is the elastic return modified pitch more than 95% at 25 DEG C；Lower floor of mating formation is by high elasticity modified asphalt and Mineral Aggregate mix, makes particulate formula asphalt, then mats formation and form；Upper strata of mating formation is by high elasticity modified asphalt and Mineral Aggregate mix, makes particulate formula or middle grain formula asphalt, then mats formation and form.Waterproof layer is combined as a whole with asphalt mixture surfacing by the paving structure of the present invention by heat molten type granule tack coat, it is ensured that the shearing strength of paving structure and durability.
Description
Technical field
The present invention relates to Communication and Transportation Engineering field, especially relate to the bridge floor paving of a kind of orthotropic plate
Assembling structure.
Background technology
Paving steel bridge deck is to be laid on steel bridge deck, plays protection steel plate and ensures the list of running car requirement
Layer or double-layer structural thing, thickness about 40-80mm.It is typically by antirust coat, water-proof tack coat, pave-load layer
Deng composition.Under the influence of the composite factors such as traffic load, wind load, variations in temperature and Steel Bridge Deck local deformation,
Its stress and deformation are complicated far beyond pavement of road or airfield pavement, thus to its intensity, deformation characteristic, temperature
Degree stability, fatigue durability etc. all have requirements at the higher level.The specific position residing simultaneously because mat formation,
Propose again in serviceability lightweight, caking property is high, the particular/special requirement such as waterproof.As bridge vehicle-driving
Important component part, the quality of deck paving directly influences the safety of driving, comfortableness, bridge
Durability.
Paving steel bridge deck technical research is a global problem, and deck paving uses condition abnormal harsh,
It is to high-temperature stability, resisting fatigue cracking behavior, the following to steel plate deformed, layers cementing and guarded drainage
Performances etc. all have high requirement.In existing bridge deck pavement structure, in order to ensure the performance of pave-load layer,
Frequently with water-proof binding system, common water-proof bond material has: solvent-borne type asphalt rubber binding material
(GS), bituminous epoxy binding agent (DER) and epoxy bond material (EA) etc..Solvent-borne type drips
Blue or green rubber bound material (GS) also exists (50-60 DEG C) and steel plate under shortage transition zone, higher temperature
The problems such as adhesion strength is low；Bituminous epoxy binding agent (DER) has that cohesive force is strong and response to temperature is low etc. excellent
Point, but pouring asphalt concrete construction before and uncured, transport vehicle and paver are difficult to walk, spread out
Paving difficulty；Epoxy resin (EA) the system non-refractory of normal temperature cure, although firmly can glue with steel plate
Knot, but it is difficult to bonding with pave-load layer interface, there is also the problem that toughness of material is not enough simultaneously.
Current material of paving course typically uses stone mastic asphalt (SMA), in order to more preferably
Ground meets the pavement performance of pave-load layer, is generally modified Colophonium SMA.But, common modifications drips
Blue or green SMA mixture viscosity is relatively low, causes anti-shear concrete ability inadequate, the phenomenons such as passage easily occurs,
It is difficult to meet paving steel bridge deck to compound high-temperature behavior and the requirement of fatigue deformation；High viscosity modification SMA
Although compound overcomes the weakness that thermostability is not enough, but the viscosity under service temperature and production and construction temperature
Under not mating of viscosity cause difficulty of construction to dramatically increase, and measure of commonly using at present such as improves mixture warm
Degree, vibroroller cmpacting etc. improve many means of compactness and all exist and affect binder, the lacking of mixture quality
Fall into, cause indoor design index cannot be able to perfect embodiment in pavement construction.
For paving process angle, current paving steel bridge deck is concentrated mainly on epoxy asphalt pavement or waters
Build two kinds of techniques of formula asphalt pavement.But both technique is the most perfect, wherein bituminous epoxy paving
Dress difficulty of construction is big, and temperature controls harshness, is difficult to operation, and material stiffness is big simultaneously, and problem of Cracking is more difficult
Solving, surface skid resistance is poor, and late maintaining difficulty is big；Cast asphalt is mated formation employing special equipment,
More difficult popularization and application, especially small bridge, and material rutting resistance is poor.And both mats formation
The material of technique, cost are high, and in practice of construction, difficulty exists some problems, it is difficult to push away on steel bridge
Wide application.
Therefore, it is necessary to a kind of material of exploitation, cost are low, highly versatile of constructing, and high-temperature stable
Property, resisting fatigue cracking behavior and the paving structure good to Steel plate bridge deformation compliance.
Summary of the invention
The technical problem to be solved is to overcome the deck paving of existing orthotropic plate
Difficulty of construction is big, and the initial stage puts into height, and late maintaining maintenance cost is high, and existing water-proof binding system is not
High temperature resistant, toughness is not enough, can not be with steel plate surface and pave-load layer secure bond, and paving structure can not be very
The defect during meeting well use, high-temperature stability, low-temperature deformation ability and resisting fatigue cracking required,
Deck installation structure and the method for paving of a kind of orthotropic plate are provided.The orthotropic plate of the present invention
Deck paving greatly reduce difficulty of construction, the initial stage puts into reduces 20-30%, and late maintaining maintenance is held
Easily, the versatility of pavement technique is relatively strong, and substructure of mating formation is durable, the life-span is long, daily can be only to table
Face maintenance, it is to avoid entirety repeats maintenance, saves input in life cycle management.
The invention provides the deck installation structure of a kind of orthotropic plate, described paving structure under
One is included containing mica epoxy anticorrosive coat, a solvent-free epoxy resin waterproof layer, a hot melt granule bonding on and
Layer, a high elasticity modified asphalt mat formation lower floor, modified emulsified asphalt tack coat and a high resiliency modification drip
Green grass or young crops is mated formation upper strata, and total pavement thickness is 6-8cm；
Described hot melt granule is the polymeric particles that softening point is more than 150 DEG C；
Described high elasticity modified asphalt is the elastic return modified pitch more than 95% at 25 DEG C；
Described high elasticity modified asphalt lower floor of mating formation is made up of following method: described high resiliency modification dripped
Green grass or young crops and Mineral Aggregate mix, make particulate formula asphalt, then mat formation；
Described high elasticity modified asphalt upper strata of mating formation is made up of following method: described high resiliency modification dripped
Green grass or young crops and Mineral Aggregate mix, make particulate formula or middle grain formula asphalt, then mat formation.
Wherein, described paving structure is preferably laid on steel bridge deck, and described steel bridge deck is paving
Carry out processing of rust removing according to this area routine before dress, preferably process through derusting by sandblasting, described sandblasting
Processing of rust removing is this area routine operation.
Wherein, described particulate formula asphalt is term of art, and particulate formula therein refers to
Big particle diameter is 13.2mm or 16mm, and nominal maximum particle diameter is 9.5mm or 13.2mm.In described
Grain formula asphalt be term of art, middle grain formula therein refer to maximum particle diameter be 19mm or
26.5mm, nominal maximum particle diameter is 16mm or 19mm.
Wherein, described roll containing mica epoxy resin by commonly used in the art containing mica epoxy anticorrosive coat
Painting is made.Described is preferably provided by west card (Chinese) company limited containing mica epoxy resin, product
Model is SikaCor HM Primer, and described SikaCor HM Primer is mainly composed of epoxy resin
(644 type), submember is the polymer of bisphenol-A and oxirane.Described prevents containing mica epoxy
Rotten layer preferably meets following index: the unit square rice quality containing mica epoxy resin is 0.3-0.4kg.
The described build containing mica epoxy anticorrosive coat is preferably 60-80 μm.
Wherein, the described solvent-free epoxy resin in solvent-free epoxy resin waterproof layer is that this area is conventional
The solvent-free epoxy resin used, the non-solvent epoxy that preferably card (Chinese) company limited in west provides
Resin.Described solvent-free epoxy resin waterproof layer preferably meets following index: unit square rice is without molten
The quality of agent epoxy resin is 2.0-3.0kg.The build of described solvent-free epoxy resin waterproof layer is relatively
Goodly for 1.0-1.8mm.
Wherein, the described hot melt granule in hot melt granule tack coat can be at the high temperature action of asphalt
Lower thawing, plays the function of bond capacity and asphalt mixture surfacing.The particle diameter of described hot melt granule is preferable
Ground is 1.5-4mm, and mean diameter is preferably 2mm.Described hot melt granule can by macromolecule resin and
/ or copolymer melting mixing form, preferably melted by ethylene-vinyl acetate copolymer and styrene resin
Mixing forming, described melting mixing is this area routine operation.Wherein, described ethyl vinyl acetate second
Ethylene-vinyl acetate copolymer and the matter of styrene resin in alkene copolymer and styrene resin melting mixing
Amount ratio preferably 99:1-60:40, described ethylene-vinyl acetate copolymer is commonly used in the art
Ethylene-vinyl acetate copolymer, molecular formula is (C2H4)x·(C4H6O2)y, described ethene-vinyl acetate copolymerization
The molecular weight of thing is preferably 1500-4000, and described ethylene-vinyl acetate copolymer is more preferably China's stone
The ethene-vinyl acetate copolymerization of the trade mark 9F1 that the Yanshan Mountain, Beijing branch company of oil chemical inc produces
Thing, described styrene resin is styrene number fat commonly used in the art, described styrene resin
Molecular weight is preferably 80-300, and described styrene resin is more preferably Sinopec Shanghai Gaoqiao oil
The styrene resin of the trade mark 275 that work company produces.Under described hot melt granule tack coat preferably meets
State index: the quality of unit square rice hot melt granule is 0.6-1.0kg, more preferably meets following index: single
The quality of position square metre hot melt granule is 0.8-1.0kg.
Wherein, the mat formation thickness of lower floor of described high elasticity modified asphalt is preferably 2.5-4mm.Described
Particulate formula asphalt preferably use SMA-10 or AC-10F grating, voidage is preferably controlled
System is at 2.5-3.5%.Those skilled in the art according to lower floor of mating formation thickness according to gather materials and grating can be to list
The consumption of position square metre particulate formula asphalt selects.For avoiding or reducing infiltration, increase further
Mating formation by force waterproof action, when the particulate formula asphalt mating formation described, material construction temperature is the biggest
In 170 DEG C, so that described hot melt granule melts, form entirety with described particulate formula asphalt.
Wherein, the described modified emulsifying asphalt in modified emulsifying asphalt tack coat is commonly used in the art
Modified emulsifying asphalt.Described modified emulsifying asphalt tack coat preferably meets following index: unit is put down
The quality of side's rice modified emulsifying asphalt is 0.4-0.6kg.
Wherein, the mat formation thickness on upper strata of described high elasticity modified asphalt is preferably 3.5-5cm.Described
Particulate formula or middle grain formula asphalt preferably use SMA-13, SMA-16, OGFC-13 or
OGFC-16 grating；Wherein, for SMA-13 or SMA-16 grating, voidage is preferably controlled in
3-5%；For OGFC-13 or OGFC-16 grating, voidage is preferably controlled in 18-22%.This
Skilled person according to lower floor of mating formation thickness according to gather materials and grating can be to unit square rice particulate formula
Or the consumption of middle grain formula asphalt selects.
Described high elasticity modified asphalt be by high resiliency modifying agent and No. 70 Colophoniumes under high-speed shearing machine
High speed shear prepares, and the raw material of described high resiliency modifying agent is preferably comprised following component by weight:
Styrene butadiene styrene block copolymer (SBS) (SBS) 100 parts, viscosifier 20-40 part, softening agent
20-40 part, warm-mixing agent 3-8 part, plasticizer 15-40 part and stabilizer 2-6 part.
Wherein, to be this area normal for SBS, viscosifier, softening agent, warm-mixing agent, plasticizer and stabilizer
The component that rule use, and the most commercially.The number-average molecular weight of described SBS is preferably
80000～100000, in described SBS, cinnamic content is preferably 20～40%, the content of butadiene
Preferably 60～80%；Described SBS more preferably divides public affairs for Sinopec Group Ba Ling
The SBS that model is 791H that department produces.Described viscosifier be preferably rubber powder, Petropols and
One or more in coumarone indene resin, are more preferably formed by rubber powder and Petropols are compounding, or by
Rubber powder and coumarone indene resin compound and form, and described compounding mass ratio is preferably (40～60):
(40～60)；Described rubber powder can be prepared by waste rubber goods ambient ground, the mesh number of described rubber powder
Preferably 40～80 mesh；Described Petropols are generally thermoplastic resin, for granular or blocks of solid,
Softening point is 90～140 DEG C, preferably by PetroChina Lanzhou Petrochemical Company
Produce；Described coumarone indene resin is solid, and softening point is 90～135 DEG C, preferably by the neat nation in Shandong resin
Company limited produces；Described softening agent is preferably furfural extract oil and/or naphthenic rubber oil, institute
State the arene content of furfural extract oil and described naphthenic rubber oil preferably > 80%；Described warm-mixing agent
Preferably Tissuemat E, described Tissuemat E is a kind of mixing synthesizing straight-chain aliphatic Hydrocarbon
Thing, the long-chain fat hydrocarbon containing 40～120 carbon atoms, its fusing point, at about 100 DEG C, can reduce drip
Blue or green high temperature viscosity, improves the low temperature viscosity of Colophonium, preferably raw by Qingdao Sai Nuo new material company limited
Produce；Described plasticizer is preferably dioctyl phthalate and/or diethyl phthalate；Institute
The stabilizer stated is preferably sulfur, and described sulfur is pale yellow powder, and the fineness of described sulfur is preferably
Being 200～500 mesh, purity is preferably > 99%.
Wherein, the preparation technology of described high resiliency modifying agent is carried out the most in the following manner: by formula
By described viscosifier, SBS and warm-mixing agent mix homogeneously in high-speed mixing equipment；Again with described softening agent,
Stabilizer and plasticizer are stirred mixing, by double screw extruder extrusion, pelletizing, extrusion temperature control
System is at 140-200 DEG C, after cooling and get final product.
The invention allows for the method for paving of the deck installation structure of a kind of orthotropic plate, it includes
Following steps:
(1) on a steel bridge deck, derusting by sandblasting process is carried out, then at its external coating one containing Muscovitum
Epoxy anticorrosion layer；
(2) to described containing mica epoxy anticorrosive coat natural curing after, be coated with a solvent-free epoxy resin prevent
Water layer；
(3) hot melt granule is dispensed so that it is part is absorbed in described solvent-free epoxy resin waterproof layer, with
Form a hot melt granule tack coat；
(4) implement to mat formation particulate formula asphalt, mat formation lower floor forming a high elasticity modified asphalt；
(5) modified emulsifying asphalt is dispensed, to form modified emulsified asphalt tack coat；
(6) implement to mat formation particulate formula or middle grain formula asphalt, to form a high elasticity modified asphalt
Mat formation upper strata.
In step (1), described derusting by sandblasting is processed as this area routine operation, typically uses ball blast
Equipment is carried out.Described derusting by sandblasting process is it is preferable that steel bridge deck cleannes reach Sa2.5 level, slightly
Rugosity reaches 60-100 μm.
In step (1), described preferably completes described derusting by sandblasting containing mica epoxy anticorrosive coat
Application is carried out, the artificial roller coating of general employing in 4h.The described anticorrosive coat containing mica epoxy is preferably blocked by west
The model that (Chinese) company limited provides is the resin-coated containing mica epoxy of SikaCor HM Primer
Make.The described anticorrosive coat containing mica epoxy is preferably according to 0.3-0.4kg/m2Containing mica epoxy resin
Consumption carries out roller coating.The described build containing mica epoxy anticorrosive coat preferably reaches 60-80 μm.
In step (2), described natural curing is this area routine operation, described natural curing
Time preferably reaches more than 24h.Described coating one solvent-free epoxy resin waterproof layer preferably uses
Following manner is carried out: containing solvent-free epoxy resin is uniform with band tooth scraper plate on mica epoxy anticorrosive coat
Scrape off, with froth breaking cylinder, the air brought into when stirring is discharged the most again.Described solvent-free epoxy resin
Waterproof layer is preferably according to 2.0-3.0kg/m2Solvent-free epoxy resin consumption be coated.Described nothing
The build of solvent epoxy resin waterproof layer is preferably 1.0-1.8mm.
In step (3), described spreading hot melt granule preferably completes solvent-free epoxy resin in coating
Carrying out in the 30min of waterproof layer, general employing is artificial or broadcasts sowing machinery spreading.Described spreading hot melt
Grain tack coat is preferably according to 0.6-1.0kg/m2Hot melt amount of particles dispense, more preferably according to
0.8-1.0kg/m2Hot melt amount of particles dispense.The whole state index of described spreading it is preferable that
The 40-60% of hot melt granule embeds in uncured described solvent-free epoxy resin waterproof layer, more preferably makes
The 50% of hot melt granule embeds in uncured described solvent-free epoxy resin waterproof layer, the heat of remainder
Molten granule is then positioned on described solvent-free epoxy resin waterproof layer, at high temperature when bituminous mixture laying
Effect is lower melts, and plays the function of bond capacity and asphalt mixture surfacing.
In step (3), the particle diameter of described hot melt granule is preferably 1.5-4mm, and mean diameter is relatively
Goodly for 2mm.Described hot melt granule can be formed by macromolecule resin and/or copolymer melting mixing,
Preferably being formed by ethylene-vinyl acetate copolymer and styrene resin melting mixing, described is melted mixed
Refining is this area routine operation.Wherein, described ethylene-vinyl acetate copolymer and styrene resin melt
The mass ratio melting mixing middle ethylene-vinyl acetate copolymer and styrene resin is preferably 99:1-60:40,
Described ethylene-vinyl acetate copolymer is ethylene-vinyl acetate copolymer commonly used in the art, point
Minor is (C2H4)x.(C4H6O2) y, the molecular weight of described ethylene-vinyl acetate copolymer is preferably
1500-4000, the board that described ethylene-vinyl acetate copolymer more preferably produces for Sinopec Yanshan Petrochemical
The ethylene-vinyl acetate copolymer of number 9F1, described styrene resin is benzene commonly used in the art
Ethylene number fat, the molecular weight of described styrene resin is preferably 80-300, and described styrene resin is more preferably
Ground is the styrene resin of the trade mark 275 of Sinopec Shanghai Gaoqiao petrochemical iy produced.
In step (4), described enforcement mats formation particulate formula asphalt preferably in non-solvent epoxy tree
Carry out after fat waterproof layer solidification 48h.Described particulate formula asphalt preferably use SMA-10 or
AC-10F grating, voidage is preferably controlled in 2.5-3.5%.Under described high elasticity modified asphalt is mated formation
The thickness of layer is preferably 2.5-4cm.Described high elasticity modified asphalt is mated formation the on-the-spot paving material of lower floor
It is preferably greater than 170 DEG C, so that described hot melt granule melts, with described particulate formula asphalt shape
Integral.
In step (5), described spreading modified emulsifying asphalt is preferably according to 0.4-0.6kg/m2Modification
Asphalt emulsion content dispenses, and described modified emulsifying asphalt plays the upper strata merit with lower floor of mating formation that bonds
Energy.
In step (6), the mat formation thickness on upper strata of described high elasticity modified asphalt is preferably 3.5-5cm.
Described particulate formula or middle grain formula asphalt preferably use SMA-13, SMA-16, OGFC-13
Or OGFC-16 grating；Wherein, for SMA-13 or SMA-16 grating, voidage is preferably controlled
System is at 3-5%；For OGFC-13 or OGFC-16 grating, voidage is preferably controlled in 18-22%.
In the present invention, described molecular weight is number-average molecular weight.
On the basis of meeting common sense in the field, above-mentioned each optimum condition, can combination in any, i.e. get Ben Fa
Bright each preferred embodiments.
Agents useful for same of the present invention and raw material are the most commercially.
The most progressive effect of the present invention is:
1, the deck installation structure of the orthotropic plate of the present invention uses the anticorrosive coat Han mica epoxy,
It is rich that its deformability, durability to be significantly better than in current deck paving anticorrosion water-proof system conventional epoxy
Zinc paint.Under the conditions of 25 DEG C, the pull strength containing mica epoxy anticorrosive coat with steel bridge deck is more than 8MPa,
Far above code requirement.
2, the deck installation structure of the orthotropic plate of the present invention uses solvent-free epoxy resin conduct
Waterproof layer, solves the waterproof problem of steel bridge pointedly, can avoid infiltration and failure by shear, protect
Waterproof, the adhesive property of card substructure.Under the conditions of 25 DEG C, solvent-free epoxy resin waterproof layer with containing cloud
The pull strength of female ring oxygen anticorrosive coat is more than 6MPa.
3, the deck installation structure tack coat of the orthotropic plate of the present invention uses heat molten type granule,
Grain both preferably can bond with waterproof layer, melts under the high temperature action of hot-mix asphalt mixture simultaneously, with
Asphalt combines together, is integrated into a whole with asphalt mixture surfacing by waterproof layer, prevents interlayer
Slide and cracking, it is ensured that the durability of waterproof layer.At hot melt granule tack coat 60 DEG C, interlaminar shear strength is big
In 0.8MPa, much larger than other water-proof binding layer materials.
4, the bridge deck pavement of the orthotropic plate of the present invention uses high elasticity modified asphalt, more conventional
Colophonium improves the dynamic viscosity at 60 DEG C, reduces the dynamic viscosity at 135 DEG C, had both met anti-car
Rut, resisting fatigue, durable high-viscosity high-elasticity performance, improve again construction workability, can effectively solve Colophonium
Pave-load layer Steel Bridge Deck deform under chase after from capability problems, pave-load layer follow Steel Bridge Deck deformation and do not ftracture,
Inhibit the generation of the disease such as crack, passage, extend the service life of Steel Bridge Deck, simultaneously can be at steel
Realize not vibrating compacting on bridge floor, prevent the compacting inequality caused because of bridge floor resonance from causing infiltration to corrode bridge floor
Steel plate.Wherein, lower floor of mating formation uses elastomeric particulate formula asphalt, has preferable dense water,
High-temperature stability, resisting fatigue cracking behavior and the following to steel plate deformed；Upper strata employing of mating formation is elastomeric
Particulate formula or middle grain formula asphalt, have preferable heat stability, deformation retinue property and surface antiskid
Property, it is ensured that driving safety and comfortableness；Mat formation and between upper strata and lower floor, use modified emulsifying asphalt to glue
Knot layer ensures Coating combination.
5, the deck installation structure economy of the orthotropic plate of the present invention is strong, relatively bituminous epoxy with water
Building formula asphalt pavement primary construction input and reduce 20-30%, later period maintenance cost is relatively low, week life-cycle
In phase, economy is strong.
6, the deck paving method highly versatile of the orthotropic plate of the present invention, employing of mating formation is the most normal
Gauge material, is not required to use special equipment, and waterproof layer uses conventional equipment construction, and whole construction process is simple,
Workable, there is good construction workability, it is adaptable to all kinds of orthotropic plate deck pavings.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the deck installation structure of the orthotropic plate of embodiment of the present invention 1-4.Figure
In, 1 mats formation upper strata for high elasticity modified asphalt, and 2 is modified emulsifying asphalt tack coat, and 3 change for high resiliency
Property asphalt pavement lower floor, 4 is hot melt granule tack coat, and 5 is solvent-free epoxy resin waterproof layer, and 6 for containing
Mica epoxy anticorrosive coat, 7 is bridge surface armor plate.
Detailed description of the invention
Further illustrate the present invention below by the mode of embodiment, but the most therefore limit the present invention to
Among described scope of embodiments.The experimental technique of unreceipted actual conditions in the following example, according to often
Rule method and condition, or select according to catalogue.
In following embodiment, used containing mica epoxy anticorrosive coat is west card containing mica epoxy resin
(Chinese) company limited provides, and model is SikaCor HM Primer；Non-solvent epoxy tree used
Fat is that west card (Chinese) company limited provides, and model is SikaCor HM Mastic；Modification used
Emulsified asphalt provides for Zhenhai Oil-Refining ChemicalCo., Ltd., China Petro-Chemical Corp, and model is PC-3.
Hot melt granule used is formed by ethylene-vinyl acetate copolymer and styrene resin melting mixing,
Ethylene-vinyl acetate copolymer is that SINOPEC Beijing Yanshan Company produces
The ethylene-vinyl acetate copolymer of trade mark 9F1, styrene resin is Sinopec Shanghai Gaoqiao oil
The styrene resin of the trade mark 275 that work company produces.
High resiliency asphalt used is formed by high elasticity modified asphalt and Mineral Aggregate mix, its
In, high elasticity modified asphalt is by high resiliency modifying agent and No. 70 Colophonium high speed shear under high-speed shearing machine
Prepare, high resiliency modifying agent used is prepared by following manner: by weight by 20-40 part viscosifier (by
Granularity is the rubber powder of 60 mesh and Petropols 60:40 in mass ratio mixes), 100 parts of styrene-
Butadiene-styrene block copolymer (SBS) and 3-8 part warm-mixing agent (Tissuemat E) are in high-speed stirred
Mix homogeneously in equipment；Again with 20-40 part softening agent (furfural extract oil), 2-6 part stabilizer (sulfur)
It is stirred mixing with 15-40 part plasticizer (dioctyl phthalate), passes through double screw extruder
Extrusion, pelletizing, extrusion temperature controls at 140-200 DEG C, after cooling and get final product.
Embodiment 1
The method for paving of the deck installation structure of a kind of orthotropic plate, comprises the steps:
(1) derusting by sandblasting on steel bridge deck so that it is cleannes reach Sa2.5 level, roughness is 70 μm；
According to 0.3kg/m2Containing mica epoxy resin demand, use artificial brushing roller coating one anticorrosion Han mica epoxy
Layer；
(2) after 24h solidifies containing mica epoxy anticorrosive coat, according to 2.5kg/m2Non-solvent epoxy
Resin demand implements blade coating one solvent-free epoxy resin waterproof layer；
(3) complete in solvent-free epoxy resin waterproof layer 30min, according to 0.8kg/m2Consumption dispense
Hot melt granule so that it is half is absorbed in solvent-free epoxy resin waterproof layer, to form a hot melt granule bonding
Layer；
(4) after 48h solvent-free epoxy resin waterproof layer solidifies, implement to mat formation lower floor SMA-10
The high resiliency asphalt of grating, mixture gap rate is 3.0%, and material temperature is 175 DEG C, with shape
The high elasticity modified asphalt becoming a thickness to be 3.0cm is mated formation lower floor；
(5) according to 0.5kg/m2Consumption dispense modified emulsifying asphalt, to form modified emulsified asphalt
Tack coat；
(6) implement to mat formation the high resiliency asphalt of upper strata SMA-13 grating, mixture gap rate
It is 4.0%, mats formation upper strata forming the thickness high elasticity modified asphalt as 4.0cm.
The deck installation structure of the orthotropic plate obtained by above-mentioned method for paving is as it is shown in figure 1, under Zi
Steel bridge deck 7 is included, containing mica epoxy anticorrosive coat 6, solvent-free epoxy resin waterproof layer 5, hot melt on and
Granule tack coat 4, high elasticity modified asphalt mats formation lower floor 3, modified emulsifying asphalt tack coat 2 and high-elastic
Property modified pitch is mated formation upper strata 1.
Embodiment 2
The method for paving of the deck installation structure of a kind of orthotropic plate, comprises the steps:
(1) derusting by sandblasting on steel bridge deck so that it is cleannes reach Sa2.5 level, roughness is 80 μm；
According to 0.3kg/m2Containing mica epoxy resin demand, use artificial brushing roller coating one anticorrosion Han mica epoxy
Layer；
(2) after 24h solidifies containing mica epoxy anticorrosive coat, according to 3.0kg/m2Non-solvent epoxy
Resin demand implements blade coating one solvent-free epoxy resin waterproof layer；
(3) complete in solvent-free epoxy resin waterproof layer 30min, according to 0.8kg/m2Consumption dispense
Hot melt granule so that it is half is absorbed in solvent-free epoxy resin waterproof layer, to form a hot melt granule bonding
Layer；
(4) after 48h solvent-free epoxy resin waterproof layer solidifies, implement to mat formation lower floor AC-10F
The high resiliency asphalt of grating, mixture gap rate is 3.0%, and material temperature is 170 DEG C, with shape
The high elasticity modified asphalt becoming a thickness to be 2.5cm is mated formation lower floor；
(5) according to 0.5kg/m2Consumption dispense modified emulsifying asphalt, to form modified emulsified asphalt
Tack coat；
(6) implement to mat formation the high resiliency asphalt of upper strata SMA-13 grating, mixture gap rate
It is 4.0%, mats formation upper strata forming the thickness high elasticity modified asphalt as 4.0cm.
The deck installation structure of the orthotropic plate obtained by above-mentioned method for paving is as it is shown in figure 1, under Zi
Steel bridge deck 7 is included, containing mica epoxy anticorrosive coat 6, solvent-free epoxy resin waterproof layer 5, hot melt on and
Granule tack coat 4, high elasticity modified asphalt mats formation lower floor 3, modified emulsifying asphalt tack coat 2 and high-elastic
Property modified pitch is mated formation upper strata 1.
Embodiment 3
The method for paving of the deck installation structure of a kind of orthotropic plate, comprises the steps:
(1) derusting by sandblasting on steel bridge deck so that it is cleannes reach Sa2.5 level, roughness is 80 μm；
According to 0.4kg/m2Containing mica epoxy resin demand, use artificial brushing roller coating one anticorrosion Han mica epoxy
Layer；
(2) after 24h solidifies containing mica epoxy anticorrosive coat, according to 3.0kg/m2Non-solvent epoxy
Resin demand implements blade coating one solvent-free epoxy resin waterproof layer；
(3) complete in solvent-free epoxy resin waterproof layer 30min, according to 1.0kg/m2Consumption dispense
Hot melt granule so that it is half is absorbed in solvent-free epoxy resin waterproof layer, to form a hot melt granule bonding
Layer；
(4) after 48h solvent-free epoxy resin waterproof layer solidifies, implement to mat formation lower floor AC-10F
The high resiliency asphalt of grating, mixture gap rate is 3.5%, and material temperature is 170 DEG C, with shape
The high elasticity modified asphalt becoming a thickness to be 3.0cm is mated formation lower floor；
(5) according to 0.5kg/m2Consumption dispense modified emulsifying asphalt, to form modified emulsified asphalt
Tack coat；
(6) implement to mat formation the high resiliency asphalt of upper strata OGFC-13 grating, mixture gap rate
It is 20%, mats formation upper strata forming the thickness high elasticity modified asphalt as 4.0cm.
The deck installation structure of the orthotropic plate obtained by above-mentioned method for paving is as it is shown in figure 1, under Zi
Steel bridge deck 7 is included, containing mica epoxy anticorrosive coat 6, solvent-free epoxy resin waterproof layer 5, hot melt on and
Granule tack coat 4, high elasticity modified asphalt mats formation lower floor 3, modified emulsifying asphalt tack coat 2 and high-elastic
Property modified pitch is mated formation upper strata 1.
Embodiment 4
The method for paving of the deck installation structure of a kind of orthotropic plate, comprises the steps:
(1) derusting by sandblasting on steel bridge deck so that it is cleannes reach Sa2.5 level, roughness is 80 μm；
According to 0.4kg/m2Containing mica epoxy resin demand, use artificial brushing roller coating one anticorrosion Han mica epoxy
Layer；
(2) after 24h solidifies containing mica epoxy anticorrosive coat containing mica epoxy, according to 2.5kg/m2's
Solvent-free epoxy resin consumption implements blade coating one solvent-free epoxy resin waterproof layer；
(3) complete in solvent-free epoxy resin waterproof layer 30min, according to 1.0kg/m2Consumption dispense
Hot melt granule so that it is half is absorbed in solvent-free epoxy resin waterproof layer, to form a hot melt granule bonding
Layer；
(4) after 48h solvent-free epoxy resin waterproof layer solidifies, implement to mat formation lower floor SMA-10
The high resiliency asphalt of grating, mixture gap rate is 3.0%, and material temperature is 175 DEG C, with shape
The high elasticity modified asphalt becoming a thickness to be 3.5cm is mated formation lower floor；
(5) according to 0.5kg/m2Consumption dispense modified emulsifying asphalt, to form modified emulsified asphalt
Tack coat；
(6) implement to mat formation the high resiliency asphalt of upper strata OGFC-16 grating, mixture gap rate
It is 22.0%, mats formation upper strata forming the thickness high elasticity modified asphalt as 4.0cm.
The deck installation structure of the orthotropic plate obtained by above-mentioned method for paving is as it is shown in figure 1, under Zi
Steel bridge deck 7 is included, containing mica epoxy anticorrosive coat 6, solvent-free epoxy resin waterproof layer 5, hot melt on and
Granule tack coat 4, high elasticity modified asphalt mats formation lower floor 3, modified emulsifying asphalt tack coat 2 and high-elastic
Property modified pitch is mated formation upper strata 1.
Effect example 1
The anticorrosive coat of embodiment 1 paving structure is carried out pull-out test, and pull-out test is with reference to " GB 5210-85
Coating adhesion algoscopy pulls open method ", " GB/T 11211-1989 vulcanite and metal bonding strength are surveyed
Determine method pulling method ".Pull-out test is chosen 5 parallel test specimens and is tested at 25 DEG C.
The pull-out test result of table 1 anticorrosive coat
Under the conditions of 25 DEG C, the pull strength containing mica epoxy anticorrosive coat with steel bridge deck is more than 8MPa, far
Higher than code requirement, also far above the test value of epoxy zinc-rich paint.The same embodiment of effect of embodiment 2-4
1。
Effect example 2
The waterproof layer of embodiment 1 paving structure is carried out shear strength test, and chooses the most conventional ring
Oxygen asphalt waterproofing system and polymethyl methacrylate resin water-proof system as a control group, test method reference
" bridge water-repellent paint " (JC/T 975-2005).
Table 2 different preventing water layer system shearing strength compares
This anticorrosion water-proof binding system improves under shearing strength at different temperatures, especially high temperature
The shearing strength of (60 DEG C and 70 DEG C).Opportunity according to paving steel bridge deck uses condition, and vehicle is at bridge floor
Horizontal shear force during traveling, tack coat applied, worst situation is under high ambient conditions,
Therefore the tack coat shear strength of 60 DEG C and 70 DEG C is particularly significant.Result of the test shows, the most often compares
Bituminous epoxy system and polymethyl methacrylate resin system, the water-proof binding coating systems of the present invention is high
Temperature shear strength has and significantly increases.Analyzing wherein reason, hot melt granule changes traditional effectively
Physical shear key effect single between waterproof layer and asphalt mixture surfacing, is increased by the effect of chemical bonding key
The strong shearing strength of Steel Deck Pavement System.The effect of embodiment 2-4 is with embodiment 1.
Effect example 3
The high resiliency modification SMA-10 compound using embodiment 1 paving structure carries out pavement performance survey
Examination, and choose common modifications SMA-10 compound as a control group, common modifications SMA-10 used mixes
Close material by the commercially available modified asphalt in China petroleum Chemicals Co., Ltd. Town Hai Lian Hua branched Corporation and
Ore compound mix forms.Method of testing is with reference to " highway engineering Colophonium and Asphalt Mixture Experiment code "
(JTG E20-2011)。
The pavement performance of table 3 high resiliency modification SMA-10 compound
Compare common modifications SMA-10 compound, the high-temperature behavior of high resiliency modification SMA-10 compound
There is a certain degree of raising；-10 DEG C of low temperature flexural-tensile strains of high-elastic modified asphalt SMA-10 are than common
Being significantly improved of modified asphalt SMA-10, low-temperature deformation ability is greatly enhanced, it means that high-elastic change
Property Colophonium SMA-10 can bear higher limiting strain, thus solve institute in paving steel bridge deck at present
The upper layer SMA-10 asphalt problem of Cracking faced.The fatigue life ratio of high-elastic asphalt compound
Plain asphalt compound exceed about 25 times, fatigue life significantly improves, simultaneously in same strain feelings
Under condition, accumulative dissipated energy modified asphalt the to be significantly larger than compound of high-elastic modified asphalt compound
Accumulative dissipated energy.
Claims (8)
1. the deck installation structure of an orthotropic plate, it is characterised in that described paving structure
Include one from bottom to top containing mica epoxy anticorrosive coat, a solvent-free epoxy resin waterproof layer, a hot melt granule
Mat formation lower floor, modified emulsified asphalt tack coat and a high resiliency of tack coat, a high elasticity modified asphalt changes
Property asphalt pavement upper strata, total pavement thickness is 6-8cm；
Described hot melt granule is the polymeric particles that softening point is more than 150 DEG C；
Described high elasticity modified asphalt is the elastic return modified pitch more than 95% at 25 DEG C；Institute
State high elasticity modified asphalt by high resiliency modifying agent and No. 70 Colophonium high speed shear systems under high-speed shearing machine
?；The raw material of described high resiliency modifying agent includes following component by weight: styrene-butadiene-benzene
Ethylene block copolymer 100 parts, viscosifier 20-40 part, softening agent 20-40 part, warm-mixing agent 3-8 part,
Plasticizer 15-40 part and stabilizer 2-6 part；
Described high elasticity modified asphalt lower floor of mating formation is made up of following method: described high resiliency modification dripped
Green grass or young crops and Mineral Aggregate mix, make particulate formula asphalt, then mat formation；
Described high elasticity modified asphalt upper strata of mating formation is made up of following method: described high resiliency modification dripped
Green grass or young crops and Mineral Aggregate mix, make particulate formula or middle grain formula asphalt, then mat formation.
2. paving structure as claimed in claim 1, it is characterised in that described paving structure is laid
On steel bridge deck, described steel bridge deck processes through derusting by sandblasting before mating formation.
3. paving structure as claimed in claim 1 or 2, it is characterised in that described containing mica ring
Oxygen anticorrosive coat is made up of the resin roller coating containing mica epoxy that model is SikaCor HM Primer；
And/or, the described build containing mica epoxy anticorrosive coat is 60-80 μm；
And/or, the build of described solvent-free epoxy resin waterproof layer is 1.0-1.8mm.
4. paving structure as claimed in claim 1 or 2, it is characterised in that described hot melt granule
The particle diameter of the hot melt granule in tack coat is 1.5-4mm, and mean diameter is 2mm；
And/or, described hot melt granular layer meets following index: the quality of unit square rice hot melt granule is
0.6-1.0kg；
And/or, described hot melt granule is by ethylene-vinyl acetate copolymer and styrene resin melting mixing
Forming, the molecular weight of described ethylene-vinyl acetate copolymer is 1500-4000, described styrene resin
Molecular weight is 80-300.
5. paving structure as claimed in claim 4, it is characterised in that described hot melt granular layer is full
Foot states index: the quality of unit square rice hot melt granule is 0.8-1.0kg；
And/or, described hot melt granule is by ethylene-vinyl acetate copolymer and styrene resin in mass ratio
99:1-60:40 melting mixing forms, and described ethylene-vinyl acetate copolymer is the ethylene-vinegar of trade mark 9F1
Acid ethylene copolymer, described styrene resin is the styrene resin of the trade mark 275.
6. paving structure as claimed in claim 1 or 2, it is characterised in that described high resiliency changes
Property agent prepare as follows: by formula by described viscosifier, s-B-S block altogether
Polymers and warm-mixing agent mix homogeneously in high-speed mixing equipment；Again with described softening agent, stabilizer and plasticising
Agent is stirred mixing, and by double screw extruder extrusion, pelletizing, extrusion temperature controls at 140-200 DEG C,
After cooling and get final product.
7. paving structure as claimed in claim 1 or 2, it is characterised in that described high resiliency changes
The thickness of property asphalt pavement lower floor is 2.5-4mm；
And/or, described particulate formula asphalt uses SMA-10 or AC-10F grating, voidage
Control at 2.5-3.5%；
And/or, described modified emulsifying asphalt tack coat meets following index: unit square rice modified emulsifying
The quality of Colophonium is 0.4-0.6kg.
8. paving structure as claimed in claim 1 or 2, it is characterised in that described high resiliency changes
The thickness on property asphalt pavement upper strata is 3.5-5cm；
And/or, described particulate formula or middle grain formula asphalt use SMA-13, SMA-16,
OGFC-13 or OGFC-16 grating；Wherein, for SMA-13 or SMA-16 grating, voidage
Controlling at 3-5%, for OGFC-13 or OGFC-16 grating, voidage controls at 18-22%.
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| CN105401519B (en) * | 2015-12-17 | 2017-06-06 | 中北大学 | A kind of steel box girder bridge floor paving structure and method for paving with the capability of antidetonance |
| CN105648910A (en) * | 2016-03-25 | 2016-06-08 | 苏交科集团股份有限公司 | Durable cement concrete bridge deck pavement structure with noise reduction and water drainage functions |
| CN107386045A (en) * | 2017-08-31 | 2017-11-24 | 西北民航机场建设集团有限责任公司 | A kind of antitorque shear structure of airport u-turn level ground asphalt pavement |
| CN109797647B (en) * | 2019-03-21 | 2021-05-28 | 河南省交通规划设计研究院股份有限公司 | Composite modified asphalt bridge deck waterproof bonding layer |
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| JP2004036227A (en) * | 2002-07-03 | 2004-02-05 | Dyflex Holdings:Kk | Paving method and asphalt pavement structure |
| JP2005090183A (en) * | 2003-09-19 | 2005-04-07 | Sanwa Kako Co Ltd | Construction method for asphalt pavement |
| CN201459603U (en) * | 2009-04-29 | 2010-05-12 | 重庆鹏方路面工程技术研究院有限公司 | Epoxy modified asphalt concrete steel bridge deck pavement structure |
| CN103568081B (en) * | 2012-07-19 | 2018-01-16 | 上海杰事杰新材料(集团)股份有限公司 | A kind of laminate and its preparation method and application |
| CN203603057U (en) * | 2013-11-26 | 2014-05-21 | 交通运输部公路科学研究所 | Prefabricated bituminous concrete steel bridge deck pavement structure |
| CN103669207B (en) * | 2013-11-26 | 2015-09-16 | 交通运输部公路科学研究所 | A kind of prefabricated bituminous concrete steel bridge surface paving structure and paving method thereof |
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