CN108316142A - A kind of paving structure and method of Steel Bridge - Google Patents
A kind of paving structure and method of Steel Bridge Download PDFInfo
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- CN108316142A CN108316142A CN201810125764.1A CN201810125764A CN108316142A CN 108316142 A CN108316142 A CN 108316142A CN 201810125764 A CN201810125764 A CN 201810125764A CN 108316142 A CN108316142 A CN 108316142A
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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
-
- 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
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The paving structure of Steel Bridge provided by the invention includes epoxy adhesive metalling, bituminous concrete adhesive layer and bitumastic concrete layer successively from top to bottom, the epoxy adhesive of the epoxy adhesive metalling has higher high temperature cohesive strength, flexibility and extensibility, high strength bond can be realized with Steel Bridge, there is non-sagging performance simultaneously, ensure big longitudinal slope minor radius Steel Bridge during pavement construction, adhesive will not trickle, the uniformity for ensureing epoxy adhesive metalling, improves the quality of bridge floor；The bituminous epoxy adhesive of the bituminous concrete adhesive layer has the characteristics that high bond strength, high tenacity and good endurance life, bituminous epoxy adhesive and gather materials can secure bond, prevent the transmission of interlayer heat, convenience provided for subsequent construction；The bitumastic concrete surface roughness is high, traffic safety；Steel bridge deck paving structure security performance provided by the invention is high, economic and environment-friendly, durable.
Description
Technical field
The invention belongs to the construction fields of road and bridge, and in particular to a kind of paving structure and method of Steel Bridge.
Background technology
So far, China only has the research of paving steel bridge deck the history of more than ten years.Initially, the concrete such as highway
Double-layer asphalt matizhi concrete (SMA) mixture that road surface generally uses is applied to mating formation for steel bridge.Due to Steel Bridge Deck
Characteristic understanding is insufficient, and it is more serious that paving mix making causes the deck paving of early stage to damage, such as Bridge of Xiling Yangtze River Bridge, the Humen
Bridge.Cast-type and U.S.'s epoxy asphalt pavement technology have then been introduced, has been applied widely, is still continuing to use so far.However
Due to being not suitable with the special circumstances such as China's high temperature heavy load, both methods also has respective problem, as Jiangyin Bridge (pours for 1999
Note formula) and Baishazhou bridge (U.S.'s epoxy in 2009), all there are the harm such as passage crack in road surface soon after being open to traffic.
During deeply putting into practice above-mentioned three kinds of schemes with studying, domestic professional person has found the double-deck SMA mixing
Material can not be successfully applied to the basic reason of China's Steel Bridge Deck, i.e.,：Interfacial structure material cannot be satisfied requirement of mating formation.It is specific and
Speech, the boundary material that Steel Bridge Deck that SMA mats formation uses are composite modified high-viscosity asphalts, it, which is coated on steel plate, makes its will
SMA bonds the common stress of one with steel plate.However, this modified high-viscosity asphalt binder is with steel plate temperature to the cohesive force of steel plate
The raising of degree and reduce rapidly.When steel billet temperature reaches 60 DEG C, only has 0.2MPa or so to the cohesive force of steel plate, drawing is cut
Stress is then lower, cannot be satisfied bonding naturally and requires.Then, just generate slide displacement on the steel plate for SMA layers, occur pushing away gather around it is convex
Packet, tail portion then generates wider selenodont crack.Once crack generates, since the immersion of road table water further weakens interface remnants
Cohesive force, SMA sliding it is more serious, can not check.Then SMA mats formation just by comprehensive destruction.
The major advantage of U.S.'s epoxy asphalt pavement system：Intensity of mating formation is high, good integrity, when high temperature anti-creeping and permanent
Deformability is strong.Low-temperature cracking-resistance is good, antifatigue, chemically resistant material corrodes.Major defect：Cost is high, and difficulty of construction is big.To applying
Work environmental requirement is harsh.Construction control is not sternly the main reason for being damaged of mating formation.It is big that difficulty is repaired after damage, is not had also at present
Have and occurs the restorative procedure after damage for bituminous epoxy.In addition, U.S.'s bituminous epoxy does not adapt to big longitudinal slope, minor radius steel bridge
The requirement of mating formation in face.
Britain's cast asphalt pavement technique advantage is very prominent.Porosity is bordering on zero, has good water-proof anti-aging
Energy.Cracking resistance is strong, good to steel plate following.The disadvantage is that：Poor high temperature stability easily forms track.Construction needs a series of
Special equipment, construction organization it is complex.Mixture temperature can not be ignored Bridge Influence up to 240 DEG C or more when construction.It is suitable
The property used：This pavement technique is suitable for the less high countries and regions of summer temp.Such as moral, U.S., some countries of Northern Europe.
To sum up, it needs to develop a kind of steel deck paving package material, the special national conditions of China's high temperature heavy load can be met and keeps away
Exempt from the shortcomings that both the above is introduced technology.
Invention content
Had enough using section in order to solve the above technical problems, the present invention provides a kind of temperature in steel bridge deck pavement
Cohesive force and shear resistance, realize pavement material and steel plate tight bond paving structure.
The object of the present invention is to provide a kind of paving structures of Steel Bridge.
It is a further object of the present invention to provide a kind of method for paving of Steel Bridge.
It is not strong in order to solve cohesive force existing for superstructure, the technical barrier of high temperature heavy load, this hair cannot be born
Bright to provide a kind of paving structure of Steel Bridge, the structure includes successively from top to bottom：Epoxy adhesive metalling, pitch are mixed
Solidifying soil adhesive layer and bitumastic concrete layer；
The epoxy adhesive metalling includes epoxy adhesive and rubble；
The epoxy adhesive includes first component and second component, and the weight ratio of the first component and second component is：1.5-
1.8:1；The first component includes the component of following parts by weight：75-95 parts of bisphenol A type epoxy resin, 2-3 parts of KH560, gas phase
0-3 parts of silica, modified hydrogenated castor oil 0-3 parts；The second component includes the component of following parts by weight：Toughener 30-60
Part, 30-50 parts of curing agent, 4-7 parts of dyestuff, 5-6 parts of DMP-30；
The bituminous concrete adhesive layer includes bituminous epoxy adhesive and gather materials；
The bituminous epoxy adhesive includes the third component and B-B fraction, and the weight ratio of third component and B-B fraction is 1:1-
1.5, third component includes the component of following parts by weight：75-80 parts of bisphenol A type epoxy resin, trimethylolpropane tris shrink
12-16 parts of glycerin ether, 3-4 parts of KH560；B-B fraction includes the component of following parts by weight：37-43 parts of pitch, toughener 20-40
Part, 12-32 parts of curing agent, 5-9 parts of DMP-30.
Epoxy adhesive provided by the invention includes first component and second component, and bituminous epoxy adhesive includes the third component and fourth
Component, both adhesives have good viscosity and mechanical property, test its pull strength by GB/T5210, pass through GB/T
7124 test its tensile-sbear strength, and testing it by finger dry method refers to the dry time, its fracture strength and fracture are tested by GB/T 528
Elongation observes its viscosity by range estimation, and the result is shown in Tables 1 and 2s.
Preferably, the toughener in second component and B-B fraction is strange scholar QS-030N toughener.Usually in asphalt mixtures modified by epoxy resin
The toughener used in fat is mostly the rubbers such as carboxyl liquid nitrile rubber, carboxyl-terminated liguid nitrile rubber, polysulfide rubber, and this
The QS-030N toughener that invention provides is a kind of pale-coloured low viscosity liquid, can be entered inside epoxy molecule, by flexible chain
Section is introduced into epoxy resin, improves the fracture toughness of epoxy resin.
Preferably, the usage amount of the epoxy adhesive is 0.9-1.1kg/m2。
Preferably, the rubble is basalt and/or diabase, and the grain size of the rubble is 3-5mm, and the rubble makes
Dosage is 3.5-4kg/m2, the laying area of the rubble is 85% or more of epoxy adhesive coated area.Due to constructing
Epoxy adhesive needs to coat entire Steel Bridge in the process, therefore the laying area of the rubble is epoxy adhesive coated side
Long-pending 85% or more.
Preferably, the bituminous epoxy adhesive and the weight ratio gathered materials are 9-10:100.
Preferably, the usage amount of the bituminous epoxy adhesive is 0.4-0.6kg/m2。
Preferably, the second component further includes 4-7 parts of dyestuff.
Preferably, the curing agent in the second component and B-B fraction is modified alicyclic ring amine hardener, modified aromatic amine curing
One kind in agent and phenolic aldehyde amine curing agent.
The present invention provides a kind of method for paving of Steel Bridge, includes the following steps：
(1) first component and second component are weighed, is proportionally uniformly mixed, the epoxy adhesive is obtained；
(2) epoxy adhesive is coated on Steel Bridge, then rubble is uniformly laid on the epoxy adhesive,
Solidification, obtains epoxy adhesive metalling；
(3) the third component and B-B fraction are weighed, is proportionally uniformly mixed, the bituminous epoxy adhesive is obtained；
(4) by bituminous epoxy adhesive that step (3) obtains with it is described gather materials be uniformly mixed, be then laid on step (2)
On obtained epoxy adhesive metalling, solidification forms bituminous concrete adhesive layer；
(5) it is laid with bitumastic concrete layer on the bituminous concrete adhesive layer that step (4) obtains, forms steel bridge bridge
Face.
Preferably, in step (2), the coated weight of the epoxy adhesive is 0.9-1.1kg/m2, the laying of the rubble
Area is 85% or more of steel bridge area.
Preferably, in step (4), the thickness of the bituminous concrete adhesive layer of formation is 20-30mm.
Preferably, in step (5), the thickness of the bitumastic concrete layer of formation is 30-40mm.
Beneficial effects of the present invention are：
The paving structure of Steel Bridge provided by the invention is mixed including epoxy adhesive metalling, pitch successively from top to bottom
Solidifying soil adhesive layer and bitumastic concrete layer, the epoxy adhesive metalling include epoxy adhesive and rubble, epoxy
Adhesive has higher adhesion strength and high temperature cohesive strength and flexibility and extensibility, can be real between Steel Bridge
Existing high strength bond, while there is non-sagging performance, ensure big longitudinal slope minor radius Steel Bridge during pavement construction, gluing
Agent will not trickle, and ensure the uniformity of epoxy adhesive metalling, reduce difficulty of construction, improve the matter of construction efficiency and bridge floor
Amount；The bituminous concrete adhesive layer includes bituminous epoxy adhesive and gathers materials, and the bituminous epoxy adhesive is by various ingredients
Composition, has the characteristics that higher adhesion strength, high tenacity and good endurance life, after normal temperature cure, bituminous epoxy
Adhesive can prevent the transmission of interlayer heat with secure bond of gathering materials, and be provided conveniently for subsequent construction；The bitumastic
Concrete layer is functional layer, has the characteristics of surface roughness is high, traffic safety；Steel bridge deck paving structure provided by the invention
Security performance is high, economic and environment-friendly, durable practicality.
One, epoxy adhesive metalling
Epoxy adhesive provided by the invention has high bond strength, and high temperature cohesive strength is big, and flexibility and extensibility are good
It is good, and epoxy adhesive provided by the invention has the characteristics that non-sagging performance and economic and environment-friendly.
1) high bond strength of epoxy adhesive and steel plate, excellent flexibility and non-sagging performance, normal temperature cure are relied on
Rubble forms coarse waterproof, anti-corrosion antiskid layer with adhesive, adhesive and steel plate secure bond afterwards, to realize steel bridge paving
Fill waterproof and the anti-shearing resistance sliding at interface；
2) high temperature cohesive strength for relying on epoxy adhesive is big, wherein at 70 DEG C, tests its shearing strength and reaches
5.32MPa ensure that adhesive metalling has enough bondings and shear resistance in the temperature in use section that steel plate surface is mated formation；
3) the good flexibility of epoxy adhesive and elongation percentage are relied on, wherein its fracture elongation reaches 22.14%, ensures
Adhesive metalling disclosure satisfy that the needs of steel bridge deformation；
4) the non-sagging performance for relying on epoxy adhesive, when ensure that big longitudinal slope minor radius paving steel bridge deck construction, gluing
Agent will not trickle, and to ensure that the uniformity after the solidification of epoxy adhesive metalling, and then ensure that epoxy adhesive rubble
The performance of layer.
5) raw material of epoxy adhesive all domesticize, and supply is reliable, environmental-friendly, comprehensive cost economy.
Two, asphalt concrete layer
Bituminous concrete adhesive layer provided by the invention includes bituminous epoxy adhesive and gathers materials, the bituminous epoxy gluing
Agent has the advantages that high bond strength, high tenacity, endurance.
1) high bond strength of dependence bituminous epoxy adhesive, high tenacity, fatigue proof feature, epoxy drips after normal temperature cure
Green adhesive and bonding securely of gathering materials form united layer, and united layer prevents the transmission of heat, protects in the construction process
Epoxy adhesive metalling is not influenced by SMA construction temperatures, reduces the unfavorable factors such as water, air, temperature in use
Damage to epoxy adhesive metalling；
2) bituminous epoxy adhesive and rubble raised on epoxy adhesive metalling are used in bituminous concrete adhesive layer
Primary load bearing layer is collectively formed, as steel in epoxy adhesive metalling and bituminous concrete adhesive layer tight bond by collective effect
The structure function layer of deck paving, there is longer service life and service life, when the use functional layer on road surface is used through certain
After the time limit is impaired, SMA layers can be only replaced, which forms cost relative moderate, performance is good, comparative lifetime is long and ties up
Repair convenient paving steel bridge deck；
3) finger for relying on bituminous epoxy adhesive is done and hardening time can be changed by being formulated fine tuning so that bituminous epoxy glue
Glutinous agent concrete layer is adapted to the needs of different zones Various Seasonal paving steel bridge deck construction；
4) it relies on the normal temperature cure of bituminous epoxy adhesive, there is no particular/special requirement to construction environment and technique, thus need not be special
Different construction equipment can carry out mix by the method for asphalt concrete and pave and roller compaction construction.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the relative position of loading wheel and face of mating formation.
Wherein, 1, epoxy adhesive metalling；2, bituminous concrete adhesive layer；3, bitumastic concrete layer；4, steel
Bridge.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, technical scheme of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Embodiment 1
The paving structure of Steel Bridge, the structure include successively from top to bottom：Epoxy adhesive metalling 1, pitch are mixed
Solidifying soil adhesive layer 2 and bitumastic concrete layer 3；
The epoxy adhesive metalling 1 is made of epoxy adhesive and rubble, and the usage amount of the epoxy adhesive is
0.9kg/m2, the rubble is basalt, and the grain size of the rubble is 3-5mm, and the usage amount of the rubble is 3.5kg/m2, institute
That states rubble is laid with area as the 85% of epoxy adhesive coated area；
The epoxy adhesive includes first component and second component, and the weight ratio of the first component and second component is：1.8:1；
The first component includes the component of following parts by weight：75 parts of bisphenol A type epoxy resin, 3 parts of KH560,2 parts of aerosil,
3 parts of modified hydrogenated castor oil；The second component includes the component of following parts by weight：Strange 42 parts of scholar QS-030N toughener, modified virtue
35 parts of fragrant amine hardener, 6 parts, DMP-305 parts of dyestuff；
The bituminous concrete adhesive layer 2 is made of bituminous epoxy adhesive with gathering materials, the bituminous epoxy adhesive with
The weight ratio gathered materials is 9:100, the usage amount of the bituminous epoxy adhesive is 0.4kg/m2；
The bituminous epoxy adhesive includes the third component and B-B fraction, and the weight ratio of third component and B-B fraction is 1:1,
Third component includes the component of following parts by weight：80 parts of bisphenol A type epoxy resin, trihydroxymethylpropanyltri diglycidyl ether 16
Part, 4 parts of KH560；B-B fraction includes the component of following parts by weight：43 parts of pitch, strange 20 parts of scholar QS-030N toughener, modified virtue
32 parts of fragrant amine hardener, 5 parts of DMP-30.
The method for paving of above-mentioned Steel Bridge, includes the following steps：
(1) first component and second component are weighed, is proportionally uniformly mixed, the epoxy adhesive is obtained；
(2) epoxy adhesive is coated on Steel Bridge, then rubble is uniformly laid on the epoxy adhesive,
Solidification, obtains epoxy adhesive metalling 1；
(3) the third component and B-B fraction are weighed, is proportionally uniformly mixed, the bituminous epoxy adhesive is obtained；
(4) by bituminous epoxy adhesive that step (3) obtains with it is described gather materials be uniformly mixed, be then laid on step (2)
On obtained epoxy adhesive metalling 1, solidification forms bituminous concrete adhesive layer 2, the bituminous concrete adhesive layer 2
Thickness is 20mm；
(5) bitumastic concrete layer 3, the pitch are laid on the bituminous concrete adhesive layer 2 that step (4) obtains
The thickness of matizhi concrete layer 3 is 30mm, forms Steel Bridge.
Embodiment 2
The paving structure of Steel Bridge, the structure include successively from top to bottom：Epoxy adhesive metalling 1, pitch are mixed
Solidifying soil adhesive layer 2 and bitumastic concrete layer 3；
The epoxy adhesive metalling 1 is made of epoxy adhesive and rubble, and the usage amount of the epoxy adhesive is
1.1kg/m2, the rubble is diabase, and the grain size of the rubble is 3-5mm, and the usage amount of the rubble is 4kg/m2, described
Rubble is laid with area as the 90% of epoxy adhesive coated area；
The epoxy adhesive includes first component and second component, and the weight ratio of the first component and second component is：1.5:1；
The first component includes the component of following parts by weight：86 parts of bisphenol A type epoxy resin, 2 parts of KH560,3 parts of aerosil；
The second component includes the component of following parts by weight：Strange 30 parts of scholar QS-030N toughener, modified 50 parts of alicyclic ring amine hardener, dye
4 parts of material, 5 parts of DMP-30；
The bituminous concrete adhesive layer 2 is made of bituminous epoxy adhesive with gathering materials, the bituminous epoxy adhesive with
The weight ratio gathered materials is 10:100, the usage amount of the bituminous epoxy adhesive is 0.6kg/m2；
The bituminous epoxy adhesive includes the third component and B-B fraction, and the weight ratio of third component and B-B fraction is 1:
1.5, third component includes the component of following parts by weight：75 parts of bisphenol A type epoxy resin, trimethylolpropane tris glycidol
12 parts of ether, 3 parts of KH560；B-B fraction includes the component of following parts by weight：37 parts of pitch, strange 25.5 parts of scholar QS-030N toughener,
Modified 28.5 parts, DMP-309 parts of alicyclic ring amine hardener.
The method for paving of above-mentioned Steel Bridge, includes the following steps：
(1) first component and second component are weighed, is proportionally uniformly mixed, the epoxy adhesive is obtained；
(2) epoxy adhesive is coated on Steel Bridge, then rubble is uniformly laid on the epoxy adhesive,
Solidification, obtains epoxy adhesive metalling 1；
(3) the third component and B-B fraction are weighed, is proportionally uniformly mixed, the bituminous epoxy adhesive is obtained；
(4) by bituminous epoxy adhesive that step (3) obtains with it is described gather materials be uniformly mixed, be then laid on step (2)
On obtained epoxy adhesive metalling 1, solidification forms bituminous concrete adhesive layer 2, the bituminous concrete adhesive layer 2
Thickness is 30mm；
(5) bitumastic concrete layer 3, the pitch are laid on the bituminous concrete adhesive layer 2 that step (4) obtains
The thickness of matizhi concrete layer 3 is 40mm, forms Steel Bridge.
Embodiment 3
The paving structure of Steel Bridge, the structure include successively from top to bottom：Epoxy adhesive metalling 1, pitch are mixed
Solidifying soil adhesive layer 2 and bitumastic concrete layer 3；
The epoxy adhesive metalling 1 is made of epoxy adhesive and rubble, and the usage amount of the epoxy adhesive is
1.0kg/m2, the rubble is basalt and diabase, and the grain size of the rubble is 3-5mm, and the usage amount of the rubble is
3.9kg/m2, the laying area of the rubble is the 92% of epoxy adhesive coated area；
The epoxy adhesive includes first component and second component, and the weight ratio of the first component and second component is：1.7:1；
The first component includes the component of following parts by weight：95 parts of bisphenol A type epoxy resin, 3 parts of KH560；The second component include with
The component of lower parts by weight：Strange 60 parts of scholar QS-030N toughener, 30 parts of phenolic aldehyde amine curing agent, 7 parts of dyestuff, 6 parts of DMP-30；
The bituminous concrete adhesive layer 2 is made of bituminous epoxy adhesive with gathering materials, the bituminous epoxy adhesive with
The weight ratio gathered materials is 10:100, the usage amount of the bituminous epoxy adhesive is 0.5kg/m2；
The bituminous epoxy adhesive includes the third component and B-B fraction, and the weight ratio of third component and B-B fraction is 1:
1.2, third component includes the component of following parts by weight：80 parts of bisphenol A type epoxy resin, trimethylolpropane tris glycidol
16 parts of ether, 4 parts of KH560；B-B fraction includes the component of following parts by weight：41 parts of pitch, strange 40 parts of scholar QS-030N toughener, phenol
12 parts of aldehyde amines curing agent, 6 parts of DMP-30.
The method for paving of above-mentioned Steel Bridge, includes the following steps：
(1) first component and second component are weighed, is proportionally uniformly mixed, the epoxy adhesive is obtained；
(2) epoxy adhesive is coated on Steel Bridge, then rubble is uniformly laid on the epoxy adhesive,
Solidification, obtains epoxy adhesive metalling 1；
(3) the third component and B-B fraction are weighed, is proportionally uniformly mixed, the bituminous epoxy adhesive is obtained；
(4) by bituminous epoxy adhesive that step (3) obtains with it is described gather materials be uniformly mixed, be then laid on step (2)
On obtained epoxy adhesive metalling 1, solidification forms bituminous concrete adhesive layer 2, the bituminous concrete adhesive layer 2
Thickness is 25mm；
(5) bitumastic concrete layer 3, the pitch are laid on the bituminous concrete adhesive layer 2 that step (4) obtains
The thickness of matizhi concrete layer 3 is 35mm, forms Steel Bridge.
Test example
Using paving structure provided by the invention：Epoxy adhesive metalling+2.5cm bituminous concrete adhesive layers+3.5cm
+ 2.5 pouring type of bitumastic concrete layer (SMA) (hereinafter referred to as test group) and use Britain ELIMINATOR waterproof systems
Bituminous concrete+3.5cmSMA structures (hereinafter referred to as contrast groups), to the especially big Steel Bridge in the corniche road Liaohe River of mating formation.Utilize acceleration
Load test detects two kinds of paving structures, the strength retrogression of bridge floor, fatigue rupture.
Accelerating and loading test scheme is shown in Table 3, and the depth calculations of main load phase track are shown in Table 4, loading wheel and paving
The relative position in dress face is shown in Fig. 1.
1 epoxy adhesive performance of table
The performance of 2 bituminous epoxy adhesive of table
Epoxy adhesive and bituminous epoxy adhesive provided by the invention is can be seen that for steel from the result of Tables 1 and 2
The deck structure that bridge deck paving is formed has higher pull strength, tensile-sbear strength and fracture strength.Wherein epoxy adhesive
5.32MPa can be reached in 70 DEG C of pull strengths, tensile-sbear strength can reach 3.31MPa；Exist in 25 DEG C of pull strengths
11.26MPa can be reached, tensile-sbear strength can reach 12.24MPa can reach 9.34MPa, fracture strength；Bituminous epoxy
Adhesive can reach 12.24MPa in 25 DEG C of fracture strength, far above the index of the technology requirement of national standard.
3 accelerating and loading test scheme of table
4 main load phase rutting depth result of calculation of table
From the results shown in Table 4, the paving structure of Steel Bridge provided by the invention is accelerating to add by 2,900,000 times
After carrying experiment, the depth of net track is 16.6mm, and uses the paving structure of contrast groups, is saying 2,900,000 accelerated loadings
After experiment, the depth of net track is 20mm, and in the test result of different load numbers, the rutting depth of test group is all
Depth than the track of control group is small, this illustrates that steel bridge deck paving structure provided by the invention has good intensity and resistance to
Fatigue rupture intensity.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of paving structure of Steel Bridge, which is characterized in that the structure includes successively from top to bottom：Epoxy adhesive is broken
Rock layers, bituminous concrete adhesive layer and bitumastic concrete layer；
The epoxy adhesive metalling includes epoxy adhesive and rubble；
The epoxy adhesive includes first component and second component, and the weight ratio of the first component and second component is：1.5-1.8:1；
The first component includes the component of following parts by weight：75-95 parts of bisphenol A type epoxy resin, 2-3 parts of KH560, gas phase titanium dioxide
0-3 parts of silicon, modified hydrogenated castor oil 0-3 parts；The second component includes the component of following parts by weight：30-60 parts of toughener, solidification
30-50 parts of agent, 5-6 parts of DMP-30；
The bituminous concrete adhesive layer includes bituminous epoxy adhesive and gathers materials；
The bituminous epoxy adhesive includes the third component and B-B fraction, and the weight ratio of third component and B-B fraction is 1:1-1.5
Third component includes the component of following parts by weight：75-80 parts of bisphenol A type epoxy resin, trimethylolpropane tris glycidol
12-16 parts of ether, 3-4 parts of KH560；B-B fraction includes the component of following parts by weight：37-43 parts of pitch, 20-40 parts of toughener, Gu
12-32 parts of agent, 5-9 parts of DMP-30.
2. the paving structure of Steel Bridge according to claim 1, which is characterized in that the usage amount of the epoxy adhesive
For 0.9-1.1kg/m2。
3. the paving structure of Steel Bridge according to claim 1, which is characterized in that the rubble be basalt and/or
The grain size of diabase, the rubble is 3-5mm, and the usage amount of the rubble is 3.5-4kg/m2, the laying area of the rubble
It is 85% or more of epoxy adhesive coated area.
4. the paving structure of Steel Bridge according to claim 1, which is characterized in that the bituminous epoxy adhesive and institute
It is 9-10 to state the weight ratio gathered materials:100.
5. the paving structure of Steel Bridge according to claim 1, which is characterized in that the bituminous epoxy adhesive makes
Dosage is 0.4-0.6kg/m2。
6. the paving structure of Steel Bridge according to claim 1, which is characterized in that the second component further includes dyestuff 4-
7 parts.
7. the paving structure of Steel Bridge according to claim 1, which is characterized in that in the second component and B-B fraction
Curing agent is one kind in modified alicyclic ring amine hardener, curing agent and phenolic aldehyde amine curing agent.
8. the method for paving of the paving structure of any Steel Bridges of claim 1-7, which is characterized in that including following step
Suddenly：
(1) first component and second component are weighed, is proportionally uniformly mixed, the epoxy adhesive is obtained；
(2) epoxy adhesive is coated on Steel Bridge, then rubble is uniformly laid on the epoxy adhesive, Gu
Change, obtains epoxy adhesive metalling；
(3) the third component and B-B fraction are weighed, is proportionally uniformly mixed, the bituminous epoxy adhesive is obtained；
(4) by bituminous epoxy adhesive that step (3) obtains with it is described gather materials be uniformly mixed, be then laid on step (2) and obtain
Epoxy adhesive metalling on, solidification, formed bituminous concrete adhesive layer；
(5) it is laid with bitumastic concrete layer on the bituminous concrete adhesive layer that step (4) obtains, forms Steel Bridge.
9. the method for paving of the paving structure of Steel Bridge according to claim 8, which is characterized in that in step (2), institute
The coated weight for stating epoxy adhesive is 0.9-1.1kg/m2, the area that is laid with of the rubble is epoxy adhesive coated area
85% or more.
10. the method for paving of the paving structure of Steel Bridge according to claim 8, which is characterized in that in step (4),
The thickness of the bituminous concrete adhesive layer of formation is 20-30mm.
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Effective date of registration: 20200622 Address after: 110000 No. 1 Herong Road, Sujiatun District, Shenyang City, Liaoning Province Co-patentee after: Li Jifang Patentee after: Wang Guojun Co-patentee after: Zheng Wei Address before: 434000 4 floor, 191 Huang Jia Tang, Sha City, Jingzhou, Hubei Co-patentee before: Zheng Wei Patentee before: Li Jifang |