CN106917347A - A kind of bridge waterproof construction method - Google Patents
A kind of bridge waterproof construction method Download PDFInfo
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- CN106917347A CN106917347A CN201511008483.0A CN201511008483A CN106917347A CN 106917347 A CN106917347 A CN 106917347A CN 201511008483 A CN201511008483 A CN 201511008483A CN 106917347 A CN106917347 A CN 106917347A
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- 238000010276 construction Methods 0.000 title claims abstract description 55
- 239000004567 concrete Substances 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000011384 asphalt concrete Substances 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims abstract description 5
- 238000005507 spraying Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 229940079593 drug Drugs 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 238000003973 irrigation Methods 0.000 claims description 3
- 230000002262 irrigation Effects 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 230000002000 scavenging effect Effects 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 31
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 abstract description 2
- 230000009977 dual effect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 30
- 239000004568 cement Substances 0.000 description 6
- 230000006378 damage Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000002585 base Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000004078 waterproofing Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000011339 hard pitch Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
Abstract
The invention discloses a kind of bridge waterproof construction method, comprise the following steps：(1) concrete bridge deck pavement；(2) bridge floor base treatment；(3) CM-DPS constructions；(4) CM-DPS+ constructions, CM-DPS constructions spray a CM-DPS+ after terminating by same construction method；(5) initial curing；(6) bridge deck traffic control；(7) CM-AS constructions；(8) bridge deck traffic control；(9) asphalt concrete pavement.The dual water proof structure that the present invention is collectively constituted using rigid permeable crystalline waterproof material (DPS) and rigid-flexible composite waterproof material (DPS+ or ACM), give full play of the performance that rigid permeable crystalline waterproof material realizes impermeable structure, and advantage of the osmosis type combination of rigidity and flexibility waterproof material on cracking resistance, the design construction of twice waterproof material also causes that the waterproof strength of bridge is further improved simultaneously, and water resistance has more protection.
Description
Technical field
The present invention relates to a kind of bridge waterproof construction method.
Background technology
In recent years, bridge waterproof started gradually to be paid attention to as a key link of bridge durability.However, mostly
Number also only relates to research, the design and construction of bridge deck water-proof, i.e. bridge surface waterproof layer.
Set bridge surface waterproof layer main purpose be fundamentally cut-out water with concrete structure contact path (exactly, it should
Claim " water barrier "), the bridge superstructure such as protection bridge deck concrete and main beam concrete, from the infringement of water, so as to improve
The durability of portion's structure.
European and American developed countries' just research regarding bridge deck water-proof technology, material and performance heavier always since twentieth century first half leaf
With utilization.Comparatively, research of the China in terms of concrete bridge deck waterproof and utilization major part are also in the starting stage.It is prevented
Water material, performance detection and construction technology etc. mainly adopt house construction engineering waterproof, not yet form a set of applicable bridge deck water-proof technology.
This allows for the aspects such as waterproof material, technique, performance and research technique and is in the market confusion stage.Even if setting waterproof layer
Deck paving, also occurs in that many problems.Such as：The adhesion strength of waterproof layer and surface layer and bridge floor is not enough and there is early damage；
Quality is unqualified and lose waterproof action in itself for waterproof material；Due to its thickness and compressibility of waterproof layer, floorings are caused
" two skins " is formed with pave-load layer above, it is totally unfavorable to bear vehicular load to pave-load layer, often new bridge is using soon, i.e.,
Generation pave-load layer extensive damage (this is also likely to be one of the reason for bridge floor easily occurs loose disease than road surface).
At present, China's bridge surface waterproof layer material therefor either asphaltic base, polymer-based, polyalcohol cement basis or cement base,
" film-type " water barrier is formed with waterproof form of film.The important performance of this kind of diaphragm type waterproof material is " performance of watertightness ",
And determining the principal element of " film-type " waterproof layer performance of watertightness has two：Cohesive force and damaged condition.The two it is main because
China Democratic National Construction Association engineering of the element in relative quiescent environment is belonged to less easily is affected, but it is to locate all the time that bridge is compared with China Democratic National Construction Association project
In under relative dynamic environment, so the two factors are difficult unaffected and destruction.
Bridge deck water-proof traditional at present substantially belongs to " film-type " waterproof type, the shape between cement bridge floor and bituminous paving are mated formation
Into one layer of water barrier.The inherent shortcoming that this conventional waterproof mode is present includes：
1., conventional waterproof material need it is enough could ensure water resistance with levels adhesion strengths, but used in bridge floor
Actual situation is：The material that this necessary adhesion strength is frequently rolled and shaken along with vehicle, time passage is produced is old
Change, film body rolls lower frequent deformation and produces aging in vehicle, these factors can all be such that its adhesion strength declines quickly, even to lose
Lose, this is also that many new bridge floors are open to traffic and occur as soon as the main cause of infiltration soon；
2., the material lifetime and service life of conventional waterproof are all relatively low because traditional material be all organic material its material from
Natural environment residing for the restricted lifetime of body, especially bridge floor is extremely severe, so service life of the traditional material in deck paving
The theoretical life-span ordered often than material is short a lot；
3. requirement degree, to cement deck conditions (such as aridity, flatness, the gradient, clean level) is high, adaptability
It is poor.And aridity, flatness, the gradient, clean level in Roadway Construction because the particularity of its construction environment is extremely difficult to
The standard requirement of material construction, these factors can all influence the cohesive force of material, and then influence water resistance；
4., it is known that high temperature is to the destructive very big of organic material, so hard pitch laying of roadway, temperature and applying when rolling
Work will necessarily all affect to film body, or even damage；
5. it is, strict to construction technology and technological requirement and be difficult to grasp, it is larger by manual operation effect；
6., produce, storage has environmental issue with construction；
7., bridge floor edge seal waterproof is a problem all the time；
8., its rigidity of film body is low, there is such one layer of " soft " separation layer between cement bridge floor and bituminous paving, in car
Rolling under frequently deform upon, and then fatigue aging necessarily causes " two skins " phenomenon.
The content of the invention
For above-mentioned the deficiencies in the prior art, the invention provides a kind of bridge waterproof construction method.
To achieve these goals, the invention provides a kind of bridge waterproof construction method, comprise the following steps：
(1) concrete bridge deck pavement；
(2) bridge floor base treatment；
(3) CM-DPS constructions；
(4) CM-DPS+ constructions；
(5) initial curing；
(6) bridge deck traffic control；
(7) CM-AS constructions；
(8) bridge deck traffic control；
(9) asphalt concrete pavement.
Used as the preferred of above-mentioned technical proposal, bridge floor base treatment in the step (2) requires concrete bridge deck pavement during construction
Layer reaches design concrete strength, and surfacing, cleaning, pollution-free, impurity, oil stain, dust are spread with dabbing machine to bridge floor first
Dress concrete surface carries out dabbing treatment, and the laitance, debris surface cut, and is then cleaned with rotatable wire brush scavenging machine, then
Removed with air blower or dust catcher drift along, particulate, rinsed one time with giant, it is to be dried after, you can constructed；For
Deck concrete pavement layer locally has after deep 5 centimetres of the requirement chisel of pit to be filled and led up compacting and processes with epoxy resin mortar, with bridge floor without
Seeping phenomenon is principle, and waterproof layer is tried one's best not rainy day construction.
Used as the preferred of above-mentioned technical proposal, the construction of CM-DPS and CM-DPS+, is waiting to apply in the step (3) and (4)
The bridge floor substrate surface of work sprays the water of q.s, after spending 30 minutes, then the spraying for carrying out CM-DPS；Sprayed with low pressure ejector
Penetrate whole surface twice, sprayed again before being done after being sprayed in first time second, whole surface of make suring reaches uniform saturation；Spraying CM-DPS
After 3h or will it is dry before, water wetted surface need to be used, particularly in summer high temperature season, more it is noted that moistening of watering, but irrigation amount is not
It is preferably excessive, in order to avoid water down the efficacy of a drug；After construction 24h, it is seen that untill concrete surface has white impurity to occur；Moistening is secondary daily
Number, general 6~7 times of summer, other seasons 1~2 time；CM-DPS constructions spray a CM-DPS+ after terminating by same construction method.
The beneficial effects of the invention are as follows：Water-borne permeable crystalline waterproofing material CM-DPS, DPS+ and ACM of U.S. CTI, be
Nontoxic, tasteless, non-volatile, incombustible environment-friendly type aqueous solution.Can be penetrated into concrete after being sprayed on concrete surface
Portion's certain depth (3mm-15mm), with a large amount of free alkalis and carbon dioxide reaction for existing in concrete in concrete pore,
Water insoluble chain crystallization is formed, so as to form impenetrable waterproof layer, concrete surface layer is possessed long-term water resistance, realized
" structurally waterproof integration " effect, and then the corrosive mediums such as acid, alkali, salt, CO2, SO2 with water as carrier are prevented to coagulation
The erosion of soil, and the ability for improving agent on crack resistance of concrete weathering, freeze thawing resistance destruction, slowing down alkali.Simultaneously this " infiltration
Crystal waterproof layer " and with ventilating, the moisture of inside concrete can outwards come out completely, and this is just on the whole
Substantially increase the durability of concrete bridge structure.It is worth mentioning that the impermeability of CM-DPS is significantly larger than common aqueous ooze
Saturating crystalline waterproof material, while DPS+ and the ACM also performance with very strong nanometer arrangement of reinforcement, can provide the anti-of concrete surface layer
Deformation and tensile resistance, with absolute technological precedence advantage.
Waterproof layer not only acts as guarded drainage effect, and can play the effects of forming a connecting link, waterproof after construction and design year such as bonding
Limit is waterproof, and cost is reasonable.It is as follows to being required on the quality rule. of waterproof layer：Waterproof layer must be fluid-tight；Surface layer making
Before, in making, be open to traffic after, waterproof layer can not be damaged；Waterproof layer should have foot with asphalt concrete pavement and Cement Concrete pave-load layer
Enough cohesive forces；Waterproof layer can resist bridge floor crackle；Waterproof layer should possess good temperature stability, the stand of asphalt
Paving temperature is general at 160 DEG C or so, it is desirable to which waterproof layer is insoluble at these elevated temperatures, and keeps film body intact, while not because of high temperature
And change material property；In summer high temperature season, pavement temperature is often as high as more than 65 DEG C, it is desirable to which waterproof membrane is at these elevated temperatures still
With suitable cohesive force and shear resistance, the driving requirement under mal-condition can be met；Constructed in summer high temperature season, it is desirable to
Waterproof membrane still has suitable stability at 50 DEG C or so, and Construction traffic and concrete paver are travelled not because of viscous wheel destruction above
Film body；It is required that waterproof membrane does not ftracture below -15 DEG C.In addition, waterproof material must have good ageing resistace, not because receiving
High temperature, roll, the effect such as low temperature, frost reduces caking property, shear resistance and water resistance.
With the continuous progress of science and technology, water-borne permeable crystalline waterproofing material is constantly upgraded and is strengthened, so that with bridge not
The design paces of disconnected development are closely combined togather, according to the design requirement of bridge, the integration of permeable crystallization type combination of rigidity and flexibility
Bridge waterproof system, this is the representative of state-of-the-art bridge integrated water-proof, breaches and uses the bridge waterproof of conventional waterproof material
The feasibility of the twice waterproof that cannot be realized at all, using rigid permeable crystalline waterproof material (DPS) and rigid-flexible composite waterproof
The dual water proof structure that material (DPS+ or ACM) is collectively constituted, gives full play of rigid permeable crystalline waterproof material and realizes knot
The performance of structure self waterproofing, and advantage of the osmosis type combination of rigidity and flexibility waterproof material on cracking resistance, while twice waterproof material
Design construction also causes that the waterproof strength of bridge is further improved, and water resistance has more protection.
Specific embodiment
With reference to embodiment, the present invention is further described, and following embodiments are illustrative, is not limited, it is impossible to
Protection scope of the present invention is limited with following embodiments.
A kind of bridge waterproof construction method, comprises the following steps：
(1) concrete bridge deck pavement；
(2) bridge floor base treatment, requires that concrete bridge deck pavement layer reaches design concrete strength, surfacing, cleaning, nothing during construction
Pollution, impurity, oil stain, dust, carry out dabbing treatment with dabbing machine to deck paving of concrete surface first, the floating of surface
Slurry, debris cut, and are then cleaned with rotatable wire brush scavenging machine, then removed with air blower or dust catcher drift along, particulate, with height
Pressure hydraulic giant rinse one time, it is to be dried after, you can constructed；Locally there is the requirement chisel of pit deep for Deck concrete pavement layer
After 5 centimetres with epoxy resin mortar fill and lead up compacting process, with bridge floor without seeping phenomenon as principle, waterproof layer try one's best not the rainy day construction；
(3) CM-DPS constructions, the water of q.s is sprayed in bridge floor substrate surface to be onstructed, after spending 30 minutes, then carries out CM-DPS
Spraying；Whole surface is sprayed with low pressure ejector twice, second, whole surface of make suring are sprayed again before being done after being sprayed in first time
Reach uniform saturation；After spraying CM-DPS 3h or will it is dry before, water wetted surface need to be used, particularly in summer high temperature season, more
It is noted that moistening of watering, but irrigation amount is unsuitable excessive, in order to avoid water down the efficacy of a drug；After construction 24h, it is seen that concrete surface has white
Untill colored foreign occurs；Number of times, general 6~7 times of summer, other seasons 1~2 time are moistened daily；
(4) CM-DPS+ constructions, CM-DPS constructions spray a CM-DPS+ after terminating by same construction method；
(5) initial curing；
(6) bridge deck traffic control；
(7) CM-AS constructions；
(8) bridge deck traffic control；
(9) asphalt concrete pavement.
Claims (3)
1. a kind of bridge waterproof construction method, it is characterised in that comprise the following steps：
(1) concrete bridge deck pavement；
(2) bridge floor base treatment；
(3) CM-DPS constructions；
(4) CM-DPS+ constructions；
(5) initial curing；
(6) bridge deck traffic control；
(7) CM-AS constructions；
(8) bridge deck traffic control；
(9) asphalt concrete pavement.
2. bridge waterproof construction method as claimed in claim 1, it is characterised in that bridge floor base treatment in the step (2),
Require that concrete bridge deck pavement layer reaches design concrete strength, surfacing, cleaning, pollution-free, impurity, oil stain, dirt during construction
Soil, carries out dabbing treatment with dabbing machine to deck paving of concrete surface first, and the laitance, debris surface cut, Ran Houyong
Rotatable wire brush scavenging machine is cleaned, then removed with air blower or dust catcher drift along, particulate, rinsed one time with giant, wait to do
After dry, you can constructed；Epoxy resin sand is used after locally having the requirement chisel of pit deep 5 centimetres for Deck concrete pavement layer
Slurry fill and lead up compacting treatment, with bridge floor without seeping phenomenon as principle, waterproof layer try one's best not the rainy day construction.
3. bridge waterproof construction method as claimed in claim 1, it is characterised in that CM-DPS in the step (3) and (4)
With the construction of CM-DPS+, the water of q.s is sprayed in bridge floor substrate surface to be onstructed, after spending 30 minutes, then carry out CM-DPS
Spraying；Whole surface is sprayed with low pressure ejector twice, second, whole surface of make suring are sprayed again before being done after being sprayed in first time
Reach uniform saturation；After spraying CM-DPS 3h or will it is dry before, water wetted surface need to be used, particularly in summer high temperature season, more
It is noted that moistening of watering, but irrigation amount is unsuitable excessive, in order to avoid water down the efficacy of a drug；After construction 24h, it is seen that concrete surface has white
Untill colored foreign occurs；Number of times, general 6~7 times of summer, other seasons 1~2 time are moistened daily；CM-DPS construction terminate after by
Same construction method sprays a CM-DPS+.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511008483.0A CN106917347A (en) | 2015-12-24 | 2015-12-24 | A kind of bridge waterproof construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511008483.0A CN106917347A (en) | 2015-12-24 | 2015-12-24 | A kind of bridge waterproof construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106917347A true CN106917347A (en) | 2017-07-04 |
Family
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| CN201511008483.0A Pending CN106917347A (en) | 2015-12-24 | 2015-12-24 | A kind of bridge waterproof construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109629428A (en) * | 2018-12-13 | 2019-04-16 | 中交二公局东萌工程有限公司 | A kind of bridge deck roughening construction technology |
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