CN208023405U - One kind being used for severe cold area high-speed railway bridge floor water-protected enclosure system - Google Patents
One kind being used for severe cold area high-speed railway bridge floor water-protected enclosure system Download PDFInfo
- Publication number
- CN208023405U CN208023405U CN201820126273.4U CN201820126273U CN208023405U CN 208023405 U CN208023405 U CN 208023405U CN 201820126273 U CN201820126273 U CN 201820126273U CN 208023405 U CN208023405 U CN 208023405U
- Authority
- CN
- China
- Prior art keywords
- water
- concrete
- layer
- bridge floor
- proof
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses one kind being used for severe cold area high-speed railway bridge floor water-protected enclosure system, including：Water-proof system between protecting wall wall outer cable slot water-proof system and line, protecting wall wall outer cable slot water-proof system include waterproof coating layer and fiber concrete protective layer, and water-proof system includes waterproof roll layer and fiber concrete protective layer between line.The utility model, as structurally waterproof confining bed, improves the crack resistance and frost resistance of concrete using the complex form of waterproof roll C40 microlith fiber concretes；Coiled material is laid with to be laid with using self-control paver, and ensure coiled material pastes closely knit raising effect；Bridge floor ultra-thin glass fiber water-proof concrete is poured using shock platforms, be ensure that and is applied weathering one-pass molding, and cracking phenomena after work is effectively prevented.
Description
Technical field
The utility model is related to construction of railways technical fields, more particularly to a kind of anti-for severe cold area high-speed railway bridge floor
Water seal system.
Background technology
Currently, China's high ferro cause has obtained development in an all-round way, and in newly-built Beijing to Shenyang Passenger Line, III types of two-wire CRTS
Plate-type ballastless track designs speed per hour 350km/h, is located in northeast severe cold area.Safety is very heavy for bridge with durability
It wants, requires bridge structure can be caused to destroy with standard if bridge waterproof system does not reach defined, particularly with high-speed iron
Phenomena such as road, the dusting of water-proof concrete, peeling, peeling, cracking, can destroy fish tail and waterproof layer structure, drastically influence train
Operational safety.According to the invalid characteristic of other severe cold area high-speed railway waterproofs, waterproof roll flexible, coating, pitch are found
Etc. having the shortcomings that easy to aging drum, easily puncture, and the impervious mortar of rigidity, coagulation great soil group are influenced easily in severe cold area by freeze thawing
Cracking dusting etc..
Drum is not played in order to ensure the stickup of flexible water is closely knit, the problems such as peeling dusting is not peeled off in rigid waterproofing, in waterproof
When construction, a series of adjustment and experiment have all been done from concrete proportioning, the selection of former material, the selection of additive, it is determined that most
The slump of good coordination in works, concrete, the one set of construction method such as pour mode, form the severe cold area of a set of maturation
High-speed railway bridge floor water-protected enclosure layer concrete construction technology.
Utility model content
The technical problem to be solved by the utility model is to provide one kind with anti-for severe cold area high-speed railway bridge floor
Water seal system, which overcome the drawbacks described above of the prior art.
Technical problem to be solved in the utility model is achieved through the following technical solutions：
One kind being used for severe cold area high-speed railway bridge floor water-protected enclosure system, including：Protecting wall wall outer cable slot waterproof
Water-proof system between system and line, the protecting wall wall outer cable slot water-proof system include that waterproof coating layer and fiber concrete are protected
Sheath, water-proof system includes waterproof roll layer and fiber concrete protective layer between the line.
Preferably, in above-mentioned technical proposal, the waterproof coating layer is polyurethane water-proof paint layer；The waterproof roll layer
For polymer modified bituminous waterproof sheet material layer.
Preferably, in above-mentioned technical proposal, the lower section of the waterproof roll layer is base treatment oxidant layer, the base treatment
Oxidant layer is set in bridge floor base.
Preferably, in above-mentioned technical proposal, the fiber concrete protective layer is C40 microlith fiber concrete layers.
The utility model above-mentioned technical proposal, has the advantages that：
(1) it uses the complex form of waterproof roll C40 microlith fiber concretes as structurally waterproof confining bed, improves mixed
Coagulate the crack resistance and frost resistance of soil.
(2) coiled material is laid with is laid with using self-control paver, and ensure coiled material pastes closely knit raising effect
(3) match ratio uses " three low one the is high " scheme of " low gel dosage, low water usage amount, low slump, high air content "
Concrete batching reduces early strength, effectively avoids cracking.
(4) bridge floor ultra-thin glass fiber water-proof concrete pours the shock platforms using independent research, ensure that the row of applying
The one-pass molding of water slope effectively prevents cracking phenomena after work.
Description of the drawings
Fig. 1 water-proof systems between the line for severe cold area high-speed railway bridge floor water-protected enclosure system of the utility model show
It is intended to.
Specific implementation mode
Specific embodiment of the utility model is described in detail below, in order to further understand the utility model.
All experimental methods used are conventional method unless otherwise specified in following embodiment.
Material used in following embodiment, reagent etc. can be obtained unless otherwise specified by commercial sources.
One kind being used for severe cold area high-speed railway bridge floor water-protected enclosure system, including：Protecting wall wall outer cable slot waterproof
Water-proof system between system and line, the protecting wall wall outer cable slot water-proof system include that waterproof coating layer and fiber concrete are protected
Sheath, water-proof system includes waterproof roll layer 2 and fiber concrete protective layer 1 between the line.The lower section of waterproof roll layer 2 is base
Layer processing oxidant layer 3, base treatment oxidant layer 3 are set in bridge floor base 4.
Preferably, waterproof coating layer is polyurethane water-proof paint layer；Waterproof roll layer 2 is rolled up for high-polymer modified pitch waterproof
Material layer.Fiber concrete protective layer 1 is C40 microlith fiber concrete layers.
A kind of construction method for severe cold area high-speed railway bridge floor water-protected enclosure system specifically includes：
One, preparation of construction：
Whether preparation of construction includes the foundation training to construction technical staff and examines raw material qualified.Specifically：
(1) before construction, organizational technology personnel conscientiously read, audit construction drawing and learn arrangement and method for construction, are familiar with specification
And technical standard, the full complement to participating in construction carries out pre-job training, for construction technology, construction process, acceptance procedures, at
Product protection etc. is confided a technological secret.
(2) inspection of raw and process materials
Cement：Cement uses the P.O42.5 low alkali cements of Liaoning traffic manufacture of cement.
Flyash：Flyash uses I grades of flyash of F classes of Shenyang China Resources production.
Fine aggregate：Fine aggregate is using the middle sand of the public proud sand fields Black Hills Xi Dong, and fineness modulus is 2.5 or so.
Coarse aggregate：Coarse aggregate uses the storehouse stone pits Tu Xinxin rubble (5~10mm), rubble to pass through trimmer shaping, gap
Rate is not more than 38%.
Fiber：Fiber uses the high zirconium alkali-resistant glass fibre of Tai'an companion production, distributed fibers (12mm), enhanced fibre
It ties up (36mm).
Air entraining agent：Air entraining agent uses the air entraining agent of three pattern of Hebei production.
Water-reducing agent：Water-reducing agent uses the water-reducing agent of three pattern of Hebei production.
(3) coordination in works determines
The characteristics of according to extremely frigid zones passenger dedicated railway line waterproof, water-protected enclosure layer uses the C40 of Tie Ke institutes research and development between line
Microlith fiber concrete, such concrete have lower shrinkage, high cracking resistance, the characteristic of high anti-freezing, therefore for live material and construction
Cooperation is studied.
A. material selection：
To effectively reduce the porosity of ultra-thin glass fiber concrete, when the flat-elongated particles content of aggregate is higher, answer
Shaping is carried out to coarse aggregate using special equipment, classification is handled.Aggregate shaping and Gradation Optimization processing after reduce voidage 5%~
8%, concrete can reduce gel material content 30kg/m3 or so under the premise of keeping identical workability.As of fine aggregate
Grade is multistage with fine aggregate use with the fine aggregate composition that different fineness modulus when being unsatisfactory for requiring, can also be used.Using special
When equipment carries out purifying processing to fine aggregate, it is necessary to take measures that fine particle is prevented to be lost in.
To reduce water consumption, the high-performance alkali-resistant glass fibre using zirconium content not less than 16% replaces polyacrylonitrile fine
Dimension, such high-performance alkali-resistant glass fibre water requirement are significantly smaller than polyacrylonitrile fibre, will not cause the big of concrete water amount
Width increases and the apparent deterioration of workability, can effectively improve concrete antifreezing performance.
Using have the characteristics that protect collapse, thicken, the high-performance water reducing agent of anti-isolation, anti-bleeding, stable quality performance, high-performance
3d compressive strength rate≤140% of water-reducing agent.Air entraining agent should be added at stirring scene by another additive, it is ensured that concrete contains
Tolerance is stablized.Air entraining agent should not be blended in water-reducing agent by additive factory and be used.
1 high zirconium glass examination of fibers project of table
B. coordination in works
C40 microlith fiber concrete match ratios are to improve the crack resistance of concrete to inhibit and prevent concrete cracking
With density.High to solve common cyclization concrete gel material dosage simultaneously, water consumption high slump is big
(160mm-180mm), sand coarse aggregate ratio are big (40% or more), it is easy to crack the problems such as.This time mix-design is using " low gel dosage, low
" three low one is high " conceptual design concrete batching of water consumption, low slump, high air content " reduces early strength, effectively avoids
Cracking.
Table 2C40 microlith glass reinforced concrete glass match ratios
| Glue material | Sand coarse aggregate ratio | Cement | Flyash | Sand | Stone | High zirconium glass fiber | Water | Water-reducing agent |
| 360 | 38% | 270 | 90 | 684 | 1116 | 0.3+2.5 boundlings of dispersion | 140 | 3.04 |
When that cannot be met the requirements using the working performance of concrete of this match ratio mix, aggregate used should be first checked for
Whether grain size, grading meet the requirement of shaping, classification.Since the quality of raw material has differences, the volume of flyash should basis
90 days actual strength sizes of concrete are adjusted.The ratio of thickness sandstone should be true by testing according to minimum porosity method
It is fixed.
It is tested by making " three high and one low " concrete sample, it is found that new concrete crack resistance and frost resistance have
It significantly improves.Resist drying shrinkage improves 20% as the age of concrete increases than original fiber concrete, freeze thawing resistance cycle
It is increased to 1100 times by 500 times, achieves significant raising.
Two, base treatment
(1) basal plane is handled
(1) for the concrete base layer of protrusion, prominence uses and manually cuts, and base of the place of cutting is put down with grinder buffing
It is whole.
(2) using artificial chiseling or cut at concrete base layer hollow and loosening, after rinsing well with beam body concrete
The gravity type mortar of ad eundem label is repaired, and build concrete cementing agent is added wherein in mortar with reinforced mortar and beam
Body is combined closely.
(3) at concrete base layer elevation variation mitigation, in the case where not influencing waterproof roll paving, by protecting thickness
Degree carries out leveling, forbids directly to smear thin layer mortar levelling on bridge floor.
(4) concrete base layer crack width≤0.2mm, is repaired using polyalcohol cement basis surface sealing method；It is mixed
Solidifying soil matrix layer crack width > 0.2mm's, it is repaired using epoxy resin low-pressure grouting method.
(5) it is cleared up again with besom, wind turbine or dust catcher after the completion of entire bridge floor base treatment, base answers after cleaning
It cleans, is dry, without sharp foreign matter, not dusting, non-scale, no concave-convex, free from flaw, loosening, honeycomb, pitted skin.
(2) brushing base treatment agent
(1) the brushing base treatment agent in the base cleaned up, inorganic agent use metal bucket airtight package, with long round brush
It is uniformly painted in substrate surface, every square metre of dosage is no less than 0.4kg.
(2) basal plane aridity is detected before brushing, detection method uses 0.5*0.5m plastic films, is covered in basal plane
On, surrounding is bonded with adhesive tape, and inside is observed after 2h, and whether there is or not steam or droplets.
(3) when brushing base treatment agent, thickness wants uniformity, and not show-through face is not accumulated, and is sure not to brush repeatedly, corner
Etc. thin portions be not easy the position of round brush, base treatment agent brushing to be dipped in hairbrush.
Three, waterproof roll stickup and polyurethane water-proof paint edge sealing
(1) waterproof roll is pasted
A. installation of membrane
Base treatment agent (cannot not be subject to viscously foot) after room temperature 4h starts paving coiled material, and coiled material is using self-control paver
It is laid with, artificial baking bonds.
Installation of membrane is since beam body one end, and laterally sequence carries out bridge floor from low to high, lights blowtorch baking coiled material bottom surface
Bitumen layer and base on inorganic agent, blowtorch toasts 4~5s apart from coiled material 30cm or so through being evenly heated back and forth when baking
It is advisable, takes advantage of (pitch is close to trickling, in shiny black for degree) when the face of coiled material just melts, you can rolling paving forward, to ensure coiled material
With the bonding of base, during coiled material heats paving, steel rider rolling exhaust bonding, line-to-line installation of membrane is used to adopt in paving
Steel rider diameter 15cm, weight 15kg, length 1.0m.
Installation of membrane at beam body periphery closing in position, using scraper plate smeared by the molten asphalt that should have nature to overflow after rolling
Plain seal is closed up, and local edge is touched using rubber mass hand hammer at this, so that coiled material is fully bonded with base.
At paving tapping pipe when waterproof roll, coiled material is directly cut in nozzle position, is cut into multiple triangles, then turns over patch
To sluicing inside pipe wall, ensure interface closing.
B. coiled material lapping
When coiled material vertically and horizontally overlaps, the lap of splice is not less than 10cm, and lap-joint's the upper and lower coiled material will heat viscous completely
It closes, to ensure that lap-joint's firm pasting, lap-joint should have the hot-melt asphalt that nature overflows.
(2) polyurethane water-proof paint edge sealing
Scumbling type polyurethane includes three kinds of seal coat, bottom surface paint and surface lacquer.Intersect sideline with bridge floor with track plates pedestal
On the basis of, in the case where ensuring basal plane drying, 100mm width is laterally brushed, vertical height of brushing flushes cover concrete
Surface.Using hand brush, uniformly brushed 2 times respectively according to the sequence of seal coat, bottom surface paint and surface lacquer, it is desirable that bottom surface paint is thick
400um, surface lacquer 200um.In base side snap the line and glue is puted up to avoid base side from polluting in construction, before being brushed
Band, adhesive tape lower edge are concordant with snap the line.
Conventional polyurethanes water-repellent paint is brushed in scumbling type polyurethane coat side, brushing range and shallow layer phase
Together.The defects of printed regions should be without holiday, blistering, stomata.Polyurethane coating is made of two kinds of components of A, B, and when use must be tight
Lattice are matched according to product operation instruction, and the weighing error of each component is not greater than ± 2%.When preparation according to first host agent,
Liquid is poured into container by the sequence of curing agent afterwards, and being sufficiently stirred makes it be uniformly mixed, mixing time 3~5 minutes.
Polyurethane water-proof paint selects brushing mode to construct, and thickness is not less than 1.5mm, should be divided into 3 times brushings.When brushing,
First brushing vertical position, behind brushing plane position.After the completion of brushing coating layer thickness is detected with coating detector.Polyurethane applies
Expect that water-repellent paint should be coated in protecting wall water hole bottom and both sides when edge sealing, and waterproof layer is laid in water hole bottom, to note
Meaning and former cable trough inner waterproofing layer carry out drop-over.
Four, fiber concrete protective layer
(1) ultra-thin glass fiber concrete scene mixing
Live mixing concrete uses mechanical forced formula blender, according to the concrete property in pre-stage test, C40 microliths
Fiber concrete is stirred using job mix station, and according to the characteristic of fiber concrete, bone is put into successively during mix
Material, powder, construction water, additive is finally glass fibre, when putting into glass fibre it may be noted that first putting into bundle,
Dispersion fiber is put into again, is gathered according to the above step that feeds intake, is stirred after feeding intake.The solidifying soil of C40 fibers uses action of forced stirring, dispersion
Fiber type first stirs 2min with aggregate, launches boundling fiber type stirring 1min again later, is allowed to stir, and ensure fibre
The integrality of dimension.
C40 microlith fiber concretes are different from other concrete, need adequately to stir in whipping process, could meet
Concrete performance requirement, required total mixing time are not less than 240s.Live mixing C40 fiber concrete performances see the table below.
Table 3C40 microlith fiber concrete performance indicators
According to job mix C40 microlith fiber concrete prosperities shop Very Large Bridge cured under same condition test specimen, test specimen resists for three days
Compressive Strength 18.4Mpa, the requirement of early strength satisfaction≤20Mpa, while meeting 28d ages and mark foster intensity >=40MPa.
(2) ultra-thin glass fiber concrete transports
C40 microlith fiber concretes are transported under live bridge using concrete mixing and transporting car, because fiber concrete collapses
Degree of falling wants≤140mm, does not have pumping conditions, therefore carries out used in vertical transportation of concrete by the way of crane and suspension bucket cooperation,
The phenomenon that wanting the moment to pay attention to observing the variation of C40 microlith fiber concretes in transportational process, preventing isolation, is being put into cloth
Before platform, after testing concrete performance index, cloth construction can be carried out.
(3) ultra-thin glass fiber concrete pours
Pour condition
Super thin fiber concreting is arranged in 16:00~next day 08:00 night constructs, to avoid summer high temperature
When pour,
Beam face to be poured is covered with cotton-wadded quilt in advance, has ensured that the fiber concrete temperature poured is not more than with the medium temperature difference
15℃.Prevent temperature
Influence to super thin fiber concrete causes the situation of early-age crack.
B. cloth
Hopper is placed between line on distributing platform, it is artificial to push, set cloth shots, cloth at 2 points by III template length of monolithic CRTS
Material presses 0.3m3~0.4m3It uniformly paves per cloth shots.It should be noted that cloth spacing during cloth, general each cloth shots with
1.5m being advisable.
C. it vibrates operation
Because C40 microlith fiber concrete pouring layer is excessively thin, can not be constructed by the way of vibrating spear direct tamping, institute
To carry out cloth using the material distributing machine of independent research, ultra-thin glass fiber concrete is carried out by the platform tooling of vibrating of research and development
Vibrate construction, found by construction test section, once vibrate can not effective closely knit ultra-thin glass fiber concrete, using twice
The platform that vibrates vibrates+mode vibrated of primary artificial small-sized flanging.
Super thin fiber concrete construction carries out concrete vibrating construction using the platform that vibrates of independent research, and the pass that vibrates is
Three times, weathering is once vibrated molding using the platform that vibrates first, level is kept at the uniform velocity in process of vibrating, because the slump is low,
Paving thickness is excessively thin, uses vibration board to concentrate place not in place of vibrating later and vibrates, is finally vibrated with Small-scale Flat
Device vibrates corner or dew stone area, ensures that the entirety of super thin fiber concrete is closely knit.
D. it plasters operation
Plastering is that the effective measures of elimination concrete plastic stage segmentation crack are plastered after the completion of concrete vibrating
Construction, when plastering, forbid to sprinkle water, and plastering number cannot be excessive, are advisable for 4 times.With plastics trowel smear for the first time after the completion of vibrating
Weathering is modified in face, covers sunshade bamboo slab rubber after plastering in time；Second is carried out after 60min with plastics trowel to plaster,
Third time plastering is carried out with plastics trowel after 40min, carrying out the 4th time with plasterer's trowel after 20min plasters.
E. joint-cutting
Bridge floor protective layer is longitudinal to be arranged lateral breaking joint, the wide about 10mm of breaking joint, deep about 20mm every 4m, and breaking joint is stretched with base board
Contracting seam stagger setting, is arranged at tapping pipe, as possible to reduce the concrete concentrated stress at sluicing nozzle.
(4) glass reinforced concrete glass conserves
Protective layer takes the windproof water-saving moisturizing type curing film maintenance of covering, first watering moistening completely in time after the completion of pouring
Concrete surface, then covering curing film, finally in covering sunshading board, covering moisture-keeping maintaining is no less than 28 days.Compared to traditional geotechnique
Cloth+plastic film maintenance, windproof water-saving curing film use three-decker, there is core film and the core of resin-like inside windproof outer membrane
Core material, windproof water-saving curing film can once be saturated the effect that long-acting moisture-keeping maintaining is realized in watering, can guarantee in 28 day curing period
Super thin fiber concrete curing requirements.
The utility model has the following advantages：
(1) technical economic benefit
(1) it uses the complex form of waterproof roll+C40 microlith fiber concretes as structurally waterproof confining bed, improves
The crack resistance and frost resistance of concrete solve phenomena such as easy dusting of concrete, peeling.
(2) the coiled material paver voluntarily developed ensures that pasting for coiled material is closely knit, improves construction effect.
(3) bridge floor ultra-thin glass fiber water-proof concrete pours the shock platforms using independent research, ensure that the row of applying
The one-pass molding of water slope effectively prevents cracking phenomena after work.
(4) match ratio uses " three low one the is high " scheme of " low gel dosage, low water usage amount, low slump, high air content "
Concrete batching reduces early strength, effectively avoids cracking.
It compares original to design using cyclization concrete, C40 microliths glass reinforced concrete glass omits in production life originally
It is designed higher than original, but intrinsic one times is higher by for the index of severe cold area frost resistance, the crack resistance in construction and after work
It can there has also been larger raisings so that in operation stage, the durability of water-protected enclosure layer is significantly enhanced, and saves later stage dimension
The cost of shield has saved a large amount of manpower and materials.
(2) social benefit
The waterproof uses C40 microlith glass fibre water-proof concretes to construct as waterproof layer for the first time, compares traditional fibre
Concrete is tieed up, has better crack resistance and frost resistance, ensure that the construction quality of extremely frigid zones Line for Passenger Transportation waterproof, is reduced tight
The incident disease problem of cold area concrete.When water-proof concrete, according to engineering characteristic utility model flowing water slope once at
Type vibrates platform and concrete distributing vehicle, ensure that the construction quality that water-proof concrete pours optimizes construction technology, achieves
Preferable construction effect, it is ensured that construction speed and construction safety, and completely obtaining application, obtain owner and
The consistent favorable comment of management.
(3) environmental benefit
Construction period requires to establish environmentally friendly leading group as agreed, strictly observes the related environmental law of country and place
Laws & Regulations.By water-saving curing film maintenance method, using water wisely ensures concrete quality.Coiled material laydown machine is laid with coiled material, reduces
Coiled material waste reduces pollution.
Although the utility model is disclosed as above with embodiment, so it is not intended to limit the utility model, any ability
Field technique personnel can make a variety of different selections and modification, therefore this without departing from the spirit and scope of the utility model
The protection domain of utility model is limited by claims and its equivalents.
Claims (4)
1. one kind being used for severe cold area high-speed railway bridge floor water-protected enclosure system, which is characterized in that including：Electricity on the outside of protecting wall wall
Water-proof system between cable slot water-proof system and line, the protecting wall wall outer cable slot water-proof system includes waterproof coating layer and fiber
Concrete cover, water-proof system includes waterproof roll layer and fiber concrete protective layer between the line.
2. according to claim 1 a kind of for severe cold area high-speed railway bridge floor water-protected enclosure system, which is characterized in that
The waterproof coating layer is polyurethane water-proof paint layer；The waterproof roll layer is polymer modified bituminous waterproof sheet material layer.
3. according to claim 1 a kind of for severe cold area high-speed railway bridge floor water-protected enclosure system, which is characterized in that
The lower section of the waterproof roll layer is base treatment oxidant layer, and the base treatment oxidant layer is set in bridge floor base.
4. according to claim 1 a kind of for severe cold area high-speed railway bridge floor water-protected enclosure system, which is characterized in that
The fiber concrete protective layer is C40 microlith fiber concrete layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820126273.4U CN208023405U (en) | 2018-01-25 | 2018-01-25 | One kind being used for severe cold area high-speed railway bridge floor water-protected enclosure system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820126273.4U CN208023405U (en) | 2018-01-25 | 2018-01-25 | One kind being used for severe cold area high-speed railway bridge floor water-protected enclosure system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208023405U true CN208023405U (en) | 2018-10-30 |
Family
ID=63903001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820126273.4U Active CN208023405U (en) | 2018-01-25 | 2018-01-25 | One kind being used for severe cold area high-speed railway bridge floor water-protected enclosure system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208023405U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108149569A (en) * | 2018-01-25 | 2018-06-12 | 中铁二十二局集团第工程有限公司 | For severe cold area high-speed railway bridge floor water-protected enclosure system and its construction method |
| CN108301320A (en) * | 2018-01-30 | 2018-07-20 | 中铁二十二局集团第工程有限公司 | The method for paving of water-protected enclosure layer based on C40 microlith fiber concretes |
| CN112287612A (en) * | 2020-10-20 | 2021-01-29 | 长安大学 | Water-rich rock freezing-thawing cycle particle flow numerical simulation method |
-
2018
- 2018-01-25 CN CN201820126273.4U patent/CN208023405U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108149569A (en) * | 2018-01-25 | 2018-06-12 | 中铁二十二局集团第工程有限公司 | For severe cold area high-speed railway bridge floor water-protected enclosure system and its construction method |
| CN108301320A (en) * | 2018-01-30 | 2018-07-20 | 中铁二十二局集团第工程有限公司 | The method for paving of water-protected enclosure layer based on C40 microlith fiber concretes |
| CN112287612A (en) * | 2020-10-20 | 2021-01-29 | 长安大学 | Water-rich rock freezing-thawing cycle particle flow numerical simulation method |
| CN112287612B (en) * | 2020-10-20 | 2021-11-30 | 长安大学 | Water-rich rock freezing-thawing cycle particle flow numerical simulation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108149569A (en) | For severe cold area high-speed railway bridge floor water-protected enclosure system and its construction method | |
| CN104402339B (en) | The constructional method of pervious concrete | |
| CN101172833B (en) | Cement concrete surface renovating material | |
| CN208023405U (en) | One kind being used for severe cold area high-speed railway bridge floor water-protected enclosure system | |
| CN101575850B (en) | Construction and maintenance method for buliding rainwater-collecting engineering collector face using soil solidifying agent | |
| CN108301320A (en) | The method for paving of water-protected enclosure layer based on C40 microlith fiber concretes | |
| CN201972172U (en) | Underground rigid composite waterproof construction structure | |
| CN102776897B (en) | Wash apron anti-settling anti-cracking construction method and structure | |
| CN108708453A (en) | Basementwaterproofing construction method | |
| CN110144790A (en) | A kind of construction method of water permeable concrete | |
| CN110886179A (en) | Construction method for repairing defects of road concrete products and brushing protective layer | |
| CN110107089A (en) | Municipal works clear-water concrete casting construction method | |
| CN108751843A (en) | Backwater pressure water-repellent paint impervious for back side leak stopping and preparation method thereof | |
| CN103790290A (en) | Construction method of roof foam concrete sloping layer | |
| CN105819792B (en) | It is a kind of can the concrete of rapid shaping and the renovation technique at expansion joint | |
| CN105625140A (en) | Construction method for air-permeable and water-drainage self-grained composite plastic track | |
| CN105201101A (en) | Light aggregate concrete small hollow block building masonry construction method | |
| CN100340720C (en) | Construction method for large scale high-performance cement concrete road panel | |
| CN112408851A (en) | Anti-radiation semi-permanent nano-penetration crystallization sealing compacting agent and use method thereof | |
| CN112830737A (en) | Multi-admixture steel slag lean concrete base layer material and application thereof | |
| CN112049445A (en) | Seasonal construction and maintenance process for concrete | |
| CN105888084A (en) | Whole outer wall internal thermal insulation system construction method by using enhanced composite thermal insulation material | |
| CN110397244A (en) | A kind of tile work technique of pugging | |
| CN106638214B (en) | A kind of the colored road surface surface layer and its paving method of antiskid | |
| CN110453570A (en) | A kind of urban road water conservation temperature reduction construction of compound road surface method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |