CN106223153A - Tar modified epoxy pavement structure and construction technology under a kind of low temperature environment - Google Patents
Tar modified epoxy pavement structure and construction technology under a kind of low temperature environment Download PDFInfo
- Publication number
- CN106223153A CN106223153A CN201610625851.4A CN201610625851A CN106223153A CN 106223153 A CN106223153 A CN 106223153A CN 201610625851 A CN201610625851 A CN 201610625851A CN 106223153 A CN106223153 A CN 106223153A
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- China
- Prior art keywords
- tar
- coat
- layer
- modified
- construction
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Classifications
-
- 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
- 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
- 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
- E01C7/35—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them
Abstract
The invention belongs to Expressway Pavement Material field, be specifically related to tar modified epoxy pavement structure and construction technology under a kind of low temperature environment.Under described low temperature environment, tar modified epoxy pavement structure includes basic unit, sealing bottom coating layer, middle painting screed-coat, floating coat, plucking aggregate layer, finishing coat, abrasive aggregates layer and the closing surface layer the most closely brushed in substrate surface.The material that described sealing bottom coating layer uses is modified by tar epoxy clear liquid；The material that described middle painting screed-coat, floating coat and finishing coat use is modified by tar epoxy resin mortar.The low temperature application performance of modified by tar epoxy pavement structure of the present invention is good: modified by tar epoxy viscosity is low at low temperatures, it is simple to pave construction, and hardening time is the most adjustable；Wearability is good；Anti-bending strength is good；Adhesive property is good；Non-skid property is good；Water resistance is good；Corrosion resistance and good；It is applicable to bridge, harbour, industrial ground and all kinds of bear light level, middle rank, the region of heavy duty traffic.
Description
Technical field
The invention belongs to Expressway Pavement Material field, be specifically related to tar modified epoxy pavement structure under a kind of low temperature environment
And construction technology.
Background technology
The Pavement Skid Resistance high-abrasive material that present stage is commonly used is polyurethane anti-skid surface material, its various colors, it is possible to directly
Being bonded in the material surfaces such as Colophonium, concrete, steel plate, construction method is relatively simple.But its wet-hot aging performance is poor, as road surface material
Material can quickly be peeling with basic unit in the environment of hot humid, and anti-skid wearable is destructurized.Secondly because its wearability
Can be general, it is not suitable for bearing the region of heavy duty traffic.
Paving steel bridge deck, because its material and the particularity of construction, is constantly subjected to the height of domestic and international academia and engineering
Pay close attention to and pay attention to.Steel Bridge Deck typically uses thickness to be that the thin-layer bituminous concrete of 35mm～100mm is as pave-load layer.Steel Bridge Deck flexibility
Greatly, under the factors such as traffic load, wind load, variations in temperature, the stress of pave-load layer and deformation are sufficiently complex.Conventional Colophonium coagulation
Soil in terms of deformation stability, fatigue durability, do not reach requirement, through after a while use after there will be rut, burn into take off
The diseases such as glue.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, it is therefore intended that provide tar modified epoxy road surface knot under a kind of low temperature environment
Structure and construction technology.
For achieving the above object, the technical solution used in the present invention is:
Tar modified epoxy pavement structure under a kind of low temperature environment, including basic unit, the tightest in substrate surface
The sealing bottom coating layer of close brushing, floating coat, finishing coat, abrasive aggregates layer and closing surface layer.
In such scheme, the thickness of described floating coat is 4 ± 0.5mm～5 ± 0.5mm；Described finishing coat, abrasive aggregates layer
Being 1.5～3.5mm with the gross thickness of closing surface layer, wherein the thickness of abrasive aggregates layer is according to depending on traffic flow.
In such scheme, the material that described sealing bottom coating layer uses is modified by tar epoxy clear liquid；Described floating coat dough-making powder
The material that coating uses is modified by tar epoxy resin mortar；The abrasive aggregates that described abrasive aggregates layer uses is corundum；Described closing
The material that surface layer uses is low viscosity epoxy clear liquid.
In such scheme, the range of viscosities of described low viscosity epoxy clear liquid is 5～20Pa s.
In such scheme, the particle size range of abrasive aggregates corundum is 0.5～3mm.
In such scheme, under described low temperature environment, tar modified epoxy pavement structure also includes sealing bottom coating layer and floating coat
Between middle painting screed-coat, the plucking aggregate layer between floating coat and finishing coat.
In such scheme, the material that described middle painting screed-coat uses is modified by tar epoxy resin mortar；For Supporting Load Pavement, institute
The plucking aggregate stating the use of plucking aggregate layer is corundum, for underloading and middle load road surface, the plucking that described plucking aggregate layer uses
Aggregate is quartz sand.
In such scheme, the particle size range of plucking aggregate corundum is 0.5～2mm, the particle size range of plucking aggregate quartz sand
It is 0.4～1mm.
In such scheme, described basic unit is concrete road surface, concrete bridge deck or Steel Bridge Deck.
Under a kind of low temperature environment, the construction technology of tar modified epoxy pavement structure, comprises the steps:
(1) basic unit being polished, need brushing sealing bottom coating layer as early as possible after having polished, the form of construction work of sealing bottom coating layer is behaved
Work roller brush modified by tar epoxy clear liquid, sealing bottom coating layer thickness is about 1mm；
(2), after coating completes, after sealing bottom coating layer initial set, before final set, floating coat construction, executing of floating coat are carried out
Work technique is: directly completely spread and floating by modified by tar epoxy resin mortar, and the thickness controlling dried floating coat is 4 ± 0.5mm～5
±0.5mm；
(3) close to carrying out finishing coat construction during final set, construction technology is: use big spatula completely to spread modified by tar epoxy
Mortar；Shed abrasive aggregates after modified by tar epoxy resin mortar is floating immediately, after abrasive aggregates is fixed in finishing coat final set, clean and receive
Collect unnecessary, loose abrasive aggregates, spray low viscosity epoxy clear liquid as closing surface layer, envelope with special coating machine subsequently
Close surface layer can be delivered for use after 24h solidifies.
In such scheme, before the construction of step (2) described floating coat, need to detect the planarization on basic unit road surface, if basic unit road surface
Smooth, difference of height, within 2mm, the most directly carries out floating coat construction；If basic unit's pavement roughness, difference of height more than 2mm, then needs
First carrying out middle painting construction of leveling blanket, carry out floating coat construction again, the construction technology of described middle painting screed-coat is: use special epoxy
Trowel is criticized at basic unit's road surface gaw and is scraped a coke charge oil modified epoxy mortar levelling layer, and height is concordant with basic unit road surface highest point,
The construction thickness of middle painting screed-coat is generally 1～3mm.
In such scheme, after step (2) described floating coat has been constructed, plucking aggregate layer can also be carried out before initial set
Construction, the construction technology of described plucking aggregate layer construction is: very thin on floating coat surface shed one layer of plucking aggregate.
Beneficial effects of the present invention:
(1) low temperature application performance of modified by tar epoxy pavement structure of the present invention is good: modified by tar epoxy at low temperatures
Viscosity is low, it is simple to pave construction, and hardening time is the most adjustable；Good (the material property: attrition value 4.7 × 10 of wearability-3～2.0 ×
10-2mm3/ m), all kinds of wear requirements can be met；Anti-bending strength good (bending strength > 17.5MPa), has certain elasticity, anti-
Curved, tensile strength is high；Adhesive property is good, strong with steel and concrete surface cohesive force (with the adhesion strength of steel > 8MPa)；Anti-
Slip can be good: coefficient of friction is big, and the rainy day is anti-skidding；Water resistance is good: provide anti-corrosion protection for steel and concrete surface；Corrosion resistance
Can be good: vapour, bavin, kerosene, highly basic, the mineral acid of dilution can be resisted, change the erosion of the chemicals such as cryosel.
(2) the coal-tar middle oil modified epoxy of the present invention is a kind of waterproof, anti-skidding, wear-resistant coat material from heavy and light, uses it for
The advantages such as modified by tar epoxy pavement structure, has and pave from heavy and light-thin layer, and unit are material usage is few, and set in structure
Timing can reserve enough having more than needed；
(3) modified by tar epoxy pavement structure of the present invention is applicable to bridge, harbour, industrial ground and all kinds of bear light
Level, middle rank, the region of heavy duty traffic.
Detailed description of the invention
In order to be more fully understood that the present invention, it is further elucidated with present disclosure below in conjunction with embodiment, but the present invention
Content is not limited solely to the following examples.
Embodiment 1
Modified by tar epoxy pavement structure of the present invention is suitable as the anti-skid wearable layer in concrete road (bridge) face, special
Not being suitable as the anti-skid wearable layer of Steel Bridge Deck, the present embodiment is explanation as a example by Steel Bridge Deck.
Under a kind of low temperature environment, the construction technology of tar modified epoxy pavement structure, comprises the steps:
(1) Steel Bridge Deck construct before, need first with polisher, bridge floor is all polished twice, get rid of the floating rust on steel plate or
Paint.First pass uses walking grinder to roughly grind one time, uses for second time hand sander finely to polish, hands of polishing emphatically
Hold up formula polisher polishing less than region, such as gap between railing bottom and railing.
(2) need brushing sealing bottom coating layer as early as possible after having polished, prevent steel plate secondary corrosion.If sealing bottom coating layer on the same day
Construction fails to be fully completed, and within second day, continues need to again be polished once by steel plate during construction, in order to avoid because dew makes on steel plate again
Produce floating rust, affect epoxy bonds.The form of construction work of sealing bottom coating layer is artificial roller brush modified by tar epoxy clear liquid, roller coat thickness
It is about 1mm.
(3), after sealing bottom coating layer completes, forbid to carry out floating coat construction before sealing bottom coating layer epoxy initial set, the most preferably in envelope
Carrying out floating coat construction after closing priming coat initial set, before final set, now the cementitiousness between two-layer is the strongest.If closed
Carrying out floating coat construction after priming coat final set, should first checking whether sealing bottom coating layer surface is cleaned dry before construction, if there being water
Stain, dust or other foreign material, can carry out floating coat construction after need to cleaning out.
(4) if bridge floor is smooth, difference of height, within 2mm, can use the construction technology being coated with in once.It is coated with in once
Construction technology, for directly modified by tar epoxy resin mortar is completely spread full-bridge face, controls the thickness of dried modified by tar epoxy resin mortar layer
For 4mm ± 0.5mm.
(5) if the difference of height of bridge floor is more than 2mm, need first to carry out middle painting construction of leveling blanket with modified by tar epoxy resin mortar,
Carry out floating coat construction again.The construction technology of middle painting screed-coat is: uses special epoxy trowel to criticize at bridge floor gaw and scrapes one layer
Modified by tar epoxy resin mortar screed-coat, height is concordant with bridge floor highest point, and the construction thickness of middle painting screed-coat is generally 1～3mm.
Floating coat construction can be carried out after middle painting screed-coat initial set.Completely spread a coke charge oil modified epoxy mortar in full-bridge face, control whole
The thickness of individual floating coat is 5mm ± 0.5mm.
(6), after floating coat has been constructed, before initial set, plucking aggregate layer construction is carried out.On surface very thin shed one layer resistance to
Abrasive material, plays the effect of plucking, can increase the cohesive force of topcoating and middle painting, if can guarantee that the floating coat when finishing coat is constructed
Still cleaning is dried, and sheds this operation of plucking aggregate and can omit.
(7) floating coat close to final set time can go up people and carry out finishing coat construction, use big spatula completely to spread during finishing coat construction
Modified by tar epoxy resin mortar, because having shed plucking aggregate, so this time finishing coat is than topcoating under normal circumstances on floating coat
Coke charge oil modified epoxy wants thickness, and about 2mm, under general case, finishing coat epoxy is about 1mm.Modified by tar epoxy resin mortar is floating
After shed abrasive aggregates immediately, by Different Traffic Flows amount, the thickness of abrasive aggregates is the most different, executes with the standard of light level traffic
As a example by work, shed abrasive aggregates amount for every square metre and control at 10kg.
(8), after abrasive aggregates is fixed in finishing coat final set, clean, with receiving bed device, the abrasive aggregates that collection is unnecessary.Clean dry
After clean loose abrasive aggregates, with special coating machine spraying modified epoxy clear liquid as closing surface layer.Close surface layer to enter
Can be delivered for use after 24h solidification.
The low temperature application performance that present invention process prepares gained modified by tar epoxy pavement structure is good: modified by tar at low temperatures
Epoxy viscosity is low, it is simple to pave construction, and hardening time is the most adjustable；Good (the material property: attrition value 4.7 × 10 of wearability-3~
2.0×10-2mm3/ m), all kinds of wear requirements can be met；Anti-bending strength good (bending strength > 17.5MPa), has certain bullet
Property, bending resistance, tensile strength height；Adhesive property is good, strong with steel and concrete surface cohesive force (with the adhesion strength of steel >
8MPa)；Non-skid property is good: coefficient of friction is big, and the rainy day is anti-skidding；Water resistance is good: provide anti-corrosion protection for steel and concrete surface；
Corrosion resistance and good: vapour, bavin, kerosene, highly basic, the mineral acid of dilution can be resisted, change the erosion of the chemicals such as cryosel.
Obviously, above-described embodiment is only by clearly demonstrating made example, and not restriction to embodiment.Right
For those of ordinary skill in the field, can also make on the basis of the above description other multi-form change or
Variation.Here without also cannot all of embodiment be given exhaustive.And the obvious change therefore amplified or change
Within moving still in the protection domain of the invention.
Claims (10)
1. tar modified epoxy pavement structure under a low temperature environment, it is characterised in that include basic unit, substrate surface from lower toward
On closely the sealing bottom coating layer of brushing, floating coat, finishing coat, abrasive aggregates layer and close surface layer successively.
Tar modified epoxy pavement structure under low temperature environment the most according to claim 1, it is characterised in that described floating coat
Thickness be 4 ± 0.5mm ~ 5 ± 0.5mm；Described finishing coat, abrasive aggregates layer and the gross thickness closing surface layer be 1.5 ~
3.5mm, wherein the thickness of abrasive aggregates layer is according to depending on traffic flow.
Tar modified epoxy pavement structure under low temperature environment the most according to claim 1, it is characterised in that at the bottom of described closing
The material that coating uses is modified by tar epoxy clear liquid；The material that described floating coat and finishing coat use is modified by tar epoxy sand
Slurry；The abrasive aggregates that described abrasive aggregates layer uses is corundum；The material that described closing surface layer uses is low viscosity epoxy clear liquid.
Tar modified epoxy pavement structure under low temperature environment the most according to claim 3, it is characterised in that abrasive aggregates is firm
Beautiful particle size range is 0.5 ~ 3mm.
Tar modified epoxy pavement structure under low temperature environment the most according to claim 1, it is characterised in that described low temperature ring
The middle painting screed-coat that under border, tar modified epoxy pavement structure is additionally included between sealing bottom coating layer and floating coat, at floating coat and
Plucking aggregate layer between finishing coat.
Tar modified epoxy pavement structure under low temperature environment the most according to claim 5, it is characterised in that described middle painting is looked for
The material that flat bed uses is modified by tar epoxy resin mortar；For Supporting Load Pavement, the plucking aggregate that described plucking aggregate layer uses is
Corundum, for underloading and middle load road surface, the plucking aggregate that described plucking aggregate layer uses is quartz sand.
Tar modified epoxy pavement structure under low temperature environment the most according to claim 6, it is characterised in that plucking aggregate is firm
Beautiful particle size range is 0.5 ~ 2mm, the particle size range 0.4 ~ 1mm of plucking aggregate quartz sand.
8. the construction technology of tar modified epoxy pavement structure under low temperature environment described in claim 1 ~ 7, it is characterised in that include
Following steps:
(1) basic unit being polished, brushing sealing bottom coating layer as early as possible after having polished, the form of construction work of sealing bottom coating layer is artificial roller brush
Modified by tar epoxy clear liquid, sealing bottom coating layer thickness is 1mm；
(2), after sealing bottom coating layer completes, after sealing bottom coating layer initial set, before final set, floating coat construction is carried out, floating coat
Construction technology is: directly completely spread and floating by modified by tar epoxy resin mortar, control the thickness of dried floating coat be 4 ± 0.5mm ~
5±0.5mm；
(3) floating coat is close to carrying out finishing coat construction during final set, and construction technology is: use big spatula completely to spread modified by tar ring
Oxygen mortar；Shed abrasive aggregates after modified by tar epoxy resin mortar is floating immediately, after abrasive aggregates is fixed in finishing coat final set, clean
Collect unnecessary, loose abrasive aggregates, subsequently with special coating machine sprinkling low viscosity epoxy clear liquid as closing surface layer,
Close surface layer can be delivered for use after 24h solidifies.
Construction technology the most according to claim 8, it is characterised in that need to detect basic unit road surface before the construction of described floating coat
Planarization, if basic unit's evenness of road surface, difference of height, within 2mm, the most directly carries out floating coat construction；If basic unit's pavement roughness,
Difference of height more than 2mm, then needs first to carry out middle painting construction of leveling blanket, carries out floating coat construction, the construction of described middle painting screed-coat again
Technique is: uses special epoxy trowel to criticize at basic unit's road surface gaw and scrapes a coke charge oil modified epoxy mortar levelling layer, height with
Basic unit's road surface highest point is concordant, and the construction thickness of middle painting screed-coat is generally 1 ~ 3mm.
Construction technology the most according to claim 7, it is characterised in that after step (2) described floating coat has been constructed, just
Can also carry out plucking aggregate layer construction before Ning, the construction technology of described plucking aggregate layer construction is: thin on floating coat surface
Thin shed one layer of plucking aggregate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610625851.4A CN106223153B (en) | 2016-08-02 | 2016-08-02 | Modified by tar epoxy pavement structure and construction technology under a kind of low temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610625851.4A CN106223153B (en) | 2016-08-02 | 2016-08-02 | Modified by tar epoxy pavement structure and construction technology under a kind of low temperature environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106223153A true CN106223153A (en) | 2016-12-14 |
| CN106223153B CN106223153B (en) | 2018-11-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610625851.4A Active CN106223153B (en) | 2016-08-02 | 2016-08-02 | Modified by tar epoxy pavement structure and construction technology under a kind of low temperature environment |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129929A (en) * | 2020-09-30 | 2020-12-25 | 重庆百信实业有限公司 | Method for detecting comprehensive performance of track coating |
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| CN203755154U (en) * | 2014-03-08 | 2014-08-06 | 中交第三公路工程局有限公司 | Steel bridge deck pavement structure of cross-sea bridge |
| CN204199132U (en) * | 2014-10-22 | 2015-03-11 | 苏州大乘环保建材有限公司 | Pavement patching screed structure |
| CN105088965A (en) * | 2015-09-16 | 2015-11-25 | 宁波路宝科技实业集团有限公司 | Steel bridge deck pavement structure and method |
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2016
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Patent Citations (4)
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|---|---|---|---|---|
| EP2083121A1 (en) * | 2006-10-31 | 2009-07-29 | Zhijian Yi | A porous concrete road surface structure made from polymer modified cement and a construction method thereof |
| CN203755154U (en) * | 2014-03-08 | 2014-08-06 | 中交第三公路工程局有限公司 | Steel bridge deck pavement structure of cross-sea bridge |
| CN204199132U (en) * | 2014-10-22 | 2015-03-11 | 苏州大乘环保建材有限公司 | Pavement patching screed structure |
| CN105088965A (en) * | 2015-09-16 | 2015-11-25 | 宁波路宝科技实业集团有限公司 | Steel bridge deck pavement structure and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129929A (en) * | 2020-09-30 | 2020-12-25 | 重庆百信实业有限公司 | Method for detecting comprehensive performance of track coating |
| CN112129929B (en) * | 2020-09-30 | 2022-11-15 | 重庆百信实业有限公司 | Method for detecting comprehensive performance of track coating |
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| Publication number | Publication date |
|---|---|
| CN106223153B (en) | 2018-11-30 |
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