CN104098305B - A kind of manufacture method of High-speed Passenger Dedicated Lines private cable tank cover plate - Google Patents
A kind of manufacture method of High-speed Passenger Dedicated Lines private cable tank cover plate Download PDFInfo
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- CN104098305B CN104098305B CN201410277149.4A CN201410277149A CN104098305B CN 104098305 B CN104098305 B CN 104098305B CN 201410277149 A CN201410277149 A CN 201410277149A CN 104098305 B CN104098305 B CN 104098305B
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Abstract
The invention provides a kind of High-speed Passenger Dedicated Lines private cable tank cover plate and manufacture method, material is use steel fiber activated powder concrete material, method is use the stirring of Fully-pipelined formula, molding, the processing technique of maintenance.Covering plate structure is simple, volume is little, lightweight, the response rate is low, easy for installation, service life is long.Use RPC material, can significantly alleviate passenger rail bridge floor secondary dead load, improve the durability of bridge floor facility, alleviate installation difficulty.Simultaneously because RPC has higher tensile strength, and enough surplus capacities are left when design, it is ensured that in use component does not ftractures, and globality is preferable, it is possible to meet serviceability and the durability of component well.
Description
Technical field
The present invention relates to the manufacture method of a kind of High-speed Passenger Dedicated Lines private cable tank cover plate
Background technology
RPC (English name Reactive Powder Concrete is called for short RPC) is 90 years 20th century
What generation abroad developed has high intensity, high durable, the cement-based material of good volume stability wilful, high.It is mainly by carefully
The material compositions such as quartz sand, cement, active admixture, thin steel fibre, high efficiency water reducing agent, water, make after high-temperature hot is supported.
Compared with other high performance concretes, the most important feature of RPC is: according to dense packing principle so that base
Body has high solidity and comprcssive strength, overcomes the fragility of high-strength concrete material further through steel fibre, improve bending resistance,
Tensile strength, obtains good toughness and ductility simultaneously, the most also has the features such as fire protecting performance is high, anticorrosive, carry
The high durability of structure, the component made of this material can reduce the sectional dimension of works, alleviate deadweight.
Harbin-to-Dalian High-speed Passenger Dedicated Lines bridge floor facility is many, and the combination of various facilities makes to be laid on the secondary dead load on bridge floor relatively
Weight, thus the serviceabilities such as anti-dead load power, durability and the tensile strength of various facilities are had the highest requirement, therefore
Preformed material and processing method for High-speed Passenger Dedicated Lines private cable tank cover plate also have the highest requirement,
The properties of RPC and index can well be applicable to High-speed Passenger Dedicated Lines private cable tank cover plate
Processing and fabricating.
Summary of the invention
It is an object of the invention to provide the manufacture method of a kind of High-speed Passenger Dedicated Lines private cable tank cover plate, material is adopt
Use steel fiber activated powder concrete material, method is use the stirring of Fully-pipelined formula, molding, the processing technique of maintenance.
Use RPC material, can significantly alleviate passenger rail bridge floor secondary dead load, improve the durability of bridge floor facility,
Alleviate installation difficulty.Simultaneously because RPC has higher tensile strength, and leave enough when design
Surplus capacity, it is ensured that in use component does not ftractures, and globality is preferable, it is possible to meet the usability of component well
Energy and durability.
For achieving the above object, the present invention realizes by the following technical solutions:
The manufacture method of a kind of High-speed Passenger Dedicated Lines private cable tank cover plate, cover plate is square-section size, lid surface
It is provided with anti-skid structure, uses main component and the weight ratio to be: cement 650～700 parts, quartz sand 180～1280 parts, steel
Fiber 90～120 parts, admixture 160～190 parts, high efficiency water reducing agent 28.6～31.2 parts, water 130～the steel of 150 parts
Fiber-reactive powder concrete material, is made by the stirring of Fully-pipelined formula, molding, maintaining process.
Described steel fiber activated powder concrete material, wherein cement is the low alkali cement of P.O42.5, C in clinker3A
Content≤8%；Quartz sand particle size 0.08～1.25mm, SiO2Content >=98%, clay content≤0.5%；Steel fibre is copper facing end
Straight type steel fibers, diameter 0.16～0.23mm, length 12～16mm, admixture is highly active mineral admixture, compares table
Area >=10000m2/kg；High efficiency water reducing agent water-reducing rate >=30%；Mixing water is drinking water.
The described stirring of Fully-pipelined formula, molding, maintaining process step are as follows:
1) be first stirred, the feeding sequence of stirring for being firstly added quartz sand, steel fibre, dry mixing 4 minutes；Then
Add cement, admixture, dry mixing 2 minutes；It is eventually adding water, high efficiency water reducing agent, stirs 4 minutes.
2) the mix sub-material being stirred being entered mould, the molded dimension of template is: long * width * thickness=744mm × 494mm × 25mm
Or two kinds of physical dimensions of 444mm × 494mm × 25mm.
3) being vibrated by the mix entering mould molding, the selection of speed of the vibration table motor of mixture is at 1500～3000 beats/min
Between, time of vibration is 4 minutes.Vibration limit, limit trowel Troweling press finishing, reaches the flatness requirement of standard-required, and table
Face and surrounding do not expose steel fibre.
4) the cover plate band template after moulding by casting being translated on the most foster support, the temperature just supporting environment controls at 40 ± 5 DEG C,
Relative humidity >=80%；Process of just supporting is divided into intensification, constant temperature, cooling three phases, and programming rate is not more than 12 DEG C/h, fall
Temperature speed is not more than 15 DEG C/h, and thermostat temperature controls at 40 ± 5 DEG C, when removal just supports room, and lid surface temperature and environment temperature
The difference of degree is less than 15 DEG C；Quiet when stopping and just support above template with covered rearing with plastic film, quiet stop and just support total time to be 24 little
Time, more than 6 hours between the quiet stopping time.
5) cover plate after just supporting form removal carries out supporting next step eventually, and process of supporting eventually is divided into intensification, constant temperature, three rank of cooling
Section, programming rate is not more than 12 DEG C/h, and cooling rate is not more than 15 DEG C/h, and thermostat temperature controls at 80 ± 5 DEG C, and constant temperature is supported
Protect time 48h；During removal final support room, lid surface temperature is less than 15 DEG C with the difference of ambient temperature.
The square-section of cover plate is a size of: long * width * thickness=744mm × 494mm × 25mm or 444mm × 494mm × 25mm two kinds
Physical dimension, the anti-skid structure that lid surface is provided with is the decorative pattern being provided with projection on the surface of cover plate.
Compared with prior art, the invention has the beneficial effects as follows:
The manufacture method of a kind of High-speed Passenger Dedicated Lines private cable tank cover plate, material is use steel fibre reactive powder to mix
Solidifying soil material, method is use the stirring of Fully-pipelined formula, molding, the processing technique of maintenance.Covering plate structure is simple, body
Long-pending little, lightweight, the response rate is low, easy for installation, service life is long.Use RPC material, can significantly subtract
Light passenger train transports railway deck secondary dead load, improves the durability of bridge floor facility, alleviates installation difficulty.Simultaneously because reactive powder mixes
Solidifying soil has higher tensile strength, and has left enough surplus capacities when design, it is ensured that in use component
Not ftractureing, globality is preferable, it is possible to meet serviceability and the durability of component well.
Accompanying drawing explanation
Fig. 1 is cable trough cover boards schematic diagram.
Fig. 2 is cable trough cover boards generalized section.
In figure: 1. cover plate 2. protruding pattern
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is further illustrated:
A kind of High-speed Passenger Dedicated Lines private cable tank cover plate and manufacture method, cover plate 1 is square-section size, cover plate 1
Surface is provided with anti-skid structure, uses main component and the weight ratio to be: cement 650～700 parts, quartz sand 180～1280 parts,
Steel fibre 90～120 parts, admixture 160～190 parts, high efficiency water reducing agent 28.6～31.2 parts, water 130～150 parts
Steel fiber activated powder concrete material, is made by special stirring, molding, maintaining process.
The steel fiber activated powder concrete material used, wherein cement is the low alkali cement of P.O42.5, C in clinker3A
Content≤8%；Quartz sand particle size 0.08～1.25mm, SiO2Content >=98%, clay content≤0.5%；Steel fibre is copper facing end
Straight type steel fibers, diameter 0.16～0.23mm, length 12～16mm, admixture is highly active mineral admixture, compares table
Area >=10000m2/kg；High efficiency water reducing agent water-reducing rate >=30%；Mixing water is drinking water.
During concrete batching mixture, all raw material presses quality Weighing, cement, mineral admixture drying regime, claims
Amount error ± 1%；Aggregate uses and is dried aggregate, weighing error ± 2%；Water, additive weighing error ± 0.5%.
The stirring of Fully-pipelined formula, molding, maintaining process step are as follows:
1), be first stirred, the feeding sequence of stirring for being firstly added quartz sand, steel fibre, dry mixing 4 minutes；Then
Add cement, mineral admixture, dry mixing 2 minutes；It is eventually adding water, high efficiency water reducing agent, stirs 4 minutes.Stir
Mix, in 30s, discharging is complete；Transport container and the pipeline of mix, otherwise water suction, not spillage, and guarantee are unloaded
Expect and carry unobstructed；Container and pipeline take Insulation in the teletostage, when summer maximum temperature is more than 40 DEG C, take heat insulation arranging
Execute.Mixture wants mix uniform, and solid colour must not have isolation and excreting water phenomenon；The slump of mixture controls
Between 180mm～220mm, and each dish, the slump difference of mixture answers≤20mm.Mixing plant is forced mixer, stirs
The machine rotating speed of mixing is not less than 45 revs/min；The homogeneity of mix requires: mix vibrate with condition after density relative
Error is less than 1%, and in unit volume mix, the relative error of steel fibre quality is less than 1%.
2), the mix sub-material being stirred being entered mould, the molded dimension of template is: long * width * thickness=744mm × 494mm × 25mm
Or two kinds of physical dimensions of 444mm × 494mm × 25mm.The template selected to have certain strength and stiffness, it is ensured that during carrying
Not warpage.
3), by the mix entering mould vibrating molding, the selection of speed of the vibration table motor of mixture is at 1500～3000 beats/min
Between clock, time of vibration is 4 minutes.Vibration limit, limit trowel Troweling press finishing, reaches the flatness requirement of standard-required, and
Surface and surrounding do not expose steel fibre.Mixture stirs, transport, pour molding and quiet stopping should more than 18 DEG C less than 40 DEG C
In the environment of complete.Mixture stirs, transport, pour molding and quiet stopping preferably completes in the environment of relative humidity more than 60%.
4), by the cover plate band template after moulding by casting translating and support on support in just, the temperature just supporting environment controls at 40 ± 5 DEG C,
Relative humidity >=80%；Process of just supporting is divided into intensification, constant temperature, cooling three phases, and programming rate is not more than 12 DEG C/h, fall
Temperature speed is not more than 15 DEG C/h, and thermostat temperature controls at 40 ± 5 DEG C, when removal just supports room, and lid surface temperature and environment temperature
The difference of degree is less than 15 DEG C；Quiet when stopping and just support above template with covered rearing with plastic film, quiet stop and just support total time to be 24 little
Time, more than 6 hours between the quiet stopping time.
5) cover plate, after just supporting form removal carries out supporting next step end, and process of supporting eventually is divided into intensification, constant temperature, three rank of cooling
Section, programming rate is not more than 12 DEG C/h, and cooling rate is not more than 15 DEG C/h, and thermostat temperature controls at 80 ± 5 DEG C, and constant temperature is supported
Protect time 48h；During removal final support room, lid surface temperature is less than 15 DEG C with the difference of ambient temperature.Just support piling after form removal
During cover plate, the gap of 30～50mm should be stayed between cover plate, be beneficial to the flowing of steam, make the cover plate outer surface contacted with steam
Long-pending maximum as far as possible, it is beneficial to the transmission of heat.Final support room is avoided use iron component, as unavoidably, apply plastics
Thin film is wrapped up, or takes other measures to cover iron component surface, with anti-pollution lid surface.Periodic cleaning is wanted to support
Protect room, keep indoor clean, in case cover plate is contaminated.In fog room, steam can not be sprayed directly on on cover plate, should make steam to
Lower section spray.Above each cover plate piling will covered with plastic film, prevent the condensed water on chamber cap from directly dripping in cover plate table
Face, affects cover plate outward appearance, should wrap up plastic sheeting outside the flitch of piling.
Finally, cable trough cover boards should be edge-on layered stacked, and every interlayer chock bar or flexible pipe are piled up and be highly usually no more than four
Layer.The cable trough cover boards tarpaulin of piling covers.Product pile up product export entrucking to be easy to.
In appearance and modeling, the square-section of cover plate 1 a size of: long * width * thickness=744mm × 494mm × 25mm or 444mm
Two kinds of physical dimensions of × 494mm × 25mm, the anti-skid structure that cover plate 1 surface is provided with is the flower being provided with projection on the surface of cover plate
Stricture of vagina 2, the height of protruding pattern 2 is 1mm.
Claims (3)
1. the manufacture method of a High-speed Passenger Dedicated Lines private cable tank cover plate, it is characterised in that cover plate is that rectangle cuts
Face size, lid surface is provided with anti-skid structure, uses main component and the weight ratio to be: cement 650～700 parts, quartz sand
180～1280 parts, steel fibre 90～120 parts, admixture 160～190 parts, high efficiency water reducing agent 28.6～31.2 parts, water
The steel fiber activated powder concrete material of 130～150 parts, is made by the stirring of Fully-pipelined formula, molding, maintaining process；
It is characterized in that, processing step is as follows:
1) be first stirred, the feeding sequence of stirring for being firstly added quartz sand, steel fibre, dry mixing 4 minutes；Then
Add cement, admixture, dry mixing 2 minutes；It is eventually adding water, high efficiency water reducing agent, stirs 4 minutes；
2) the mix sub-material being stirred being entered mould, the molded dimension of template is: long * width * thickness=744mm × 494mm × 25mm
Or two kinds of physical dimensions of 444mm × 494mm × 25mm；
3) being vibrated by the mix entering mould molding, the selection of speed of the vibration table motor of mixture is at 1500～3000 beats/min
Between, time of vibration is 4 minutes, vibration limit, limit trowel Troweling press finishing, reaches the flatness requirement of standard-required, and table
Face and surrounding do not expose steel fibre；
4) the cover plate band template after moulding by casting being translated on the most foster support, the temperature just supporting environment controls at 40 ± 5 DEG C,
Relative humidity >=80%；Process of just supporting is divided into intensification, constant temperature, cooling three phases, and programming rate is not more than 12 DEG C/h, fall
Temperature speed is not more than 15 DEG C/h, and thermostat temperature controls at 40 ± 5 DEG C, when removal just supports room, and lid surface temperature and environment temperature
The difference of degree is less than 15 DEG C；Quiet when stopping and just support above template with covered rearing with plastic film, quiet stop and just support total time to be 24 little
Time, more than 6 hours between the quiet stopping time；
5) cover plate after just supporting form removal carries out supporting next step eventually, and process of supporting eventually is divided into intensification, constant temperature, three rank of cooling
Section, programming rate is not more than 12 DEG C/h, and cooling rate is not more than 15 DEG C/h, and thermostat temperature controls at 80 ± 5 DEG C, and constant temperature is supported
Protect time 48h；During removal final support room, lid surface temperature is less than 15 DEG C with the difference of ambient temperature.
The manufacture method of a kind of High-speed Passenger Dedicated Lines private cable tank cover plate the most according to claim 1, it is special
Levying and be, described steel fiber activated powder concrete material, wherein cement is the low alkali cement of P.O42.5, clinker
Middle C3A content≤8%；Quartz sand particle size 0.08～1.25mm, SiO2Content >=98%, clay content≤0.5%；Steel fibre is plating
The straight type steel fibers of copper end, diameter 0.16～0.23mm, length 12～16mm, admixture is highly active mineral admixture,
Specific surface area >=10000m2/kg；High efficiency water reducing agent water-reducing rate >=30%；Mixing water is drinking water.
The manufacture method of a kind of High-speed Passenger Dedicated Lines private cable tank cover plate the most according to claim 1, it is special
Levy and be, the square-section of cover plate a size of: long * width * thickness=744mm × 494mm × 25mm or 444mm × 494mm × 25mm
Two kinds of physical dimensions, the anti-skid structure that lid surface is provided with is the decorative pattern being provided with projection on the surface of cover plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410277149.4A CN104098305B (en) | 2014-06-20 | 2014-06-20 | A kind of manufacture method of High-speed Passenger Dedicated Lines private cable tank cover plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410277149.4A CN104098305B (en) | 2014-06-20 | 2014-06-20 | A kind of manufacture method of High-speed Passenger Dedicated Lines private cable tank cover plate |
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| CN104098305B true CN104098305B (en) | 2016-09-14 |
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| CN104791008B (en) * | 2015-04-28 | 2017-04-19 | 中铁工程设计咨询集团有限公司 | Cover plate of drainage ditch in tunnel and manufacturing method of cover plate |
| CN108911602A (en) * | 2018-07-25 | 2018-11-30 | 中国铁建大桥工程局集团有限公司 | High-speed railway reactive powder concrete cover plate factorial construction engineering method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320789A (en) * | 2011-08-29 | 2012-01-18 | 四川西南交大铁路发展有限公司 | High-strength active powder concrete and preparation method |
| CN103274652A (en) * | 2013-06-20 | 2013-09-04 | 中建三局建设工程股份有限公司 | Reactive powder concrete for reinforcing buildings as well as preparation method and construction method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320789A (en) * | 2011-08-29 | 2012-01-18 | 四川西南交大铁路发展有限公司 | High-strength active powder concrete and preparation method |
| CN103274652A (en) * | 2013-06-20 | 2013-09-04 | 中建三局建设工程股份有限公司 | Reactive powder concrete for reinforcing buildings as well as preparation method and construction method thereof |
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