CN102503309A - Self-compacting concrete mixture for plate-type ballastless track of railway - Google Patents
Self-compacting concrete mixture for plate-type ballastless track of railway Download PDFInfo
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- CN102503309A CN102503309A CN2011103478365A CN201110347836A CN102503309A CN 102503309 A CN102503309 A CN 102503309A CN 2011103478365 A CN2011103478365 A CN 2011103478365A CN 201110347836 A CN201110347836 A CN 201110347836A CN 102503309 A CN102503309 A CN 102503309A
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Abstract
The invention discloses a self-compacting concrete mixture for a plate-type ballastless track of a railway, which is composed of the following ingredients in part by weight: 100 parts of cement, 20-80 parts of mineral admixture, 200-300 parts of fine aggregate, 250-350 parts of coarse aggregate, 2-10 parts of parts of rubber powder, 1-3 parts of polypropylene fiber, 10-25 parts of expansion agent, 1.0-3.0 parts of water reducing agent, 0.1-1 part of retarder, 0.01-0.05 parts of rheology accessory agent, 0.001 part of antifoaming agent and 60-80 parts of water; and the self-compacting concrete mixture is prepared by blending and stirring the materials. The self-compacting concrete mixture disclosed by the invention has the advantages of large flow state, self-compacting property, non-segregation, low shrinkage, high anti-cracking property and vibration adsorption, and the like, so that the self-compacting concrete mixture can be used as filler between a rail board and a soleplate in a plate-type ballastless track and can also be used as filler between a turnout board and the soleplate in a turnout structure.
Description
Technical field
The present invention relates to a kind of high-speed railway plate-type ballastless track and use self-compacting concrete, can be used for the weighting material between plate-type ballastless track structure middle orbit plate and base plate, also can be used for the weighting material between track switch plate and base plate in the switch structure.
Background technology
In recent years, high-speed railway has obtained the development of advancing by leaps and bounds in worldwide, all the more so in China, by in September, 2011, and China high-speed railway 1.3 ten thousand km that have been open to the traffic.In the high-speed railway that builds up; Considerable circuit adopts the plate-type ballastless track structure, and in the track structure of this type, the track plate height is confirmed; And base plate height error in construction is inevitable; Because high-speed railway needs high ride comfort, therefore be designed with filling bed, be used for the leveling in later stage and eliminate error.The vibration of bullet train simultaneously has the greater impact load to the track plate, therefore requires this filling bed to have than high impact-resistance and vibration absorption ability.General at present employing cement emulsified asphalt mortar is as the packing material between track plate and base plate, and it mainly act as filling, support, leveling, absorbing, vibration damping and vibration isolation.
Adopting cement emulsified asphalt mortar is that difficulty of construction is bigger as one of deficiency of packing material, and the construction operation quality is brought the quality of packing layer and had a strong impact on simultaneously.I type cement emulsified asphalt mortar adopts the construction of bag notes method, need lay infusion bag during construction, needs the excision of infusion bag sack after construction finishes, and mortar injection need adopt special facility in addition, and rate of flooding produces the mortar quality and has a strong impact on.The construction of II type cement emulsified asphalt mortar employing die cavity injection method needs before constructing the track plate is carried out edge sealing all around, and keeps venting hole, and need spray to base plate and prewet, and needs the strict rate of flooding of controlling during perfusion, need edge sealing be removed after perfusion finishes.I, II mortar adopt special Mixing Machine to form through the specific stirring technique system of mixing in addition, and flow process is complicated, and quality very easily is difficult to control.
Adopting cement emulsified asphalt mortar is that cost is too high as another deficiency of packing material.The material cost of cement emulsified asphalt mortar is about 10 times of normal concrete; And every cement emulsified asphalt mortar truck with grout mixer and water tank price is high; Reach millions of units, the processing of special facility, manual work and equipment cost during construction (speed of application only each scope of operation 300 meters/day) make that to adopt the cement emulsified asphalt mortar cost higher.
Therefore, develop that construction technology is simple, construction quality is prone to control, lower-cost material is very necessary to replace cement emulsified asphalt mortar.Self-compacting concrete has advantages such as big fluidised form, self-compacting, low cost; Can satisfy in the construction of high-speed railway plate-type ballastless track one-sided from the levelling requirement; But common self-compacting concrete has shortcomings such as easy segregation, laitance, contraction be big, easy to crack; Under train impact and alternation loading action; Concrete after the sclerosis is prone to and track plate unsticking, gap, and concrete is prone to cracking simultaneously, therefore presses for the novel self-compacting concrete that exploitation is used for weighting material between plate-type ballastless track structure middle orbit plate and the base plate.
Summary of the invention
In view of the above deficiency of prior art, the purpose of this invention is to provide a kind of railway plate-type ballastless track and use self-compacting concrete, make it to have big fluidised form, self-compacting, nothing segregation, hang down the advantage of contraction, high cracking resistance, absorbing.
The objective of the invention is to realize through following means.
A kind of railway plate-type ballastless track is used autodensing concrete almixture, and the shared weight part of component is: cement: 100 parts, and mineral admixture: 20～80 parts, fine aggregate: 200～300 parts; Coarse aggregate: 250～350, rubber powder: 2～10, polypropylene fibre 1～3; Swelling agent: 10～25 parts, water reducer: 1.0～3.0 parts, retardant: 0.1～1 part; Auxiliary rheological agents: 0.01～0.05 part, skimmer: 0.001 part, water: 60～80 parts; Stir and process by above-mentioned mixing of materials.Autodensing concrete almixture of the present invention has characteristics such as big fluidised form, self-compacting, nothing segregation, low contraction, high cracking resistance, absorbing; Can be used for the weighting material between plate-type ballastless track structure middle orbit plate and base plate, also can be used for the weighting material between track switch plate and base plate in the switch structure.
Embodiment
The used cement of the present invention is super-early strength cement, and specific surface area surpasses 1000m
2/ kg, be above silicate cement and aluminum sulfate salt cement admixture of 52.5MPa by the preparation of 1: 2 weight part, 28d intensity; Solved because of cement granules too slightly causes slurries and be difficult to get into the problem of microscopic checks (below the width 0.5mm); And through improving the fineness of cement granules; Improved the early strength of cement, guaranteed that slurries 2h intensity reaches 10.0MPa, the superfine cement technology also efficiently solves cement granules and is prone to deposition, stratified problem in slurries.
Adulterant is the mixture of at least two kinds in flyash, silicon ash, metakaolin, silica powder, wherein silicon ash specific surface area>=3000m
2/ kg, activity index>=1.3; Metakaolin area>=1000m
2/ kg, activity index>=1.2; Silica powder diameter>=0.075mm adopts specific surface area to reach 3000m less than 1%
2The adulterant technology of the silicon ash of/kg and ultra-fine metakaolin, silica powder etc.; Utilize micro aggregate effect, active effect and the shape effect of mineral admixture; Solved easy segregation, the lamination problem of fresh paste, and utilized " the volcanical ash effect " of mineral admixture, with system Free Ca (OH)
2Reaction reduces its dissolving and stripping, and each interface, system inside is improved, and makes system become more closely knit.
The shared weight part of each composition is: the silicon ash: 100, and metakaolin: 50～150, silica powder: 100～200.Redispersable latex powder, its composition can be vinyl acetate and ethene and higher fatty acid vinyl acetate terpolymer rubber powder, propenoate and styrene copolymerized rubber powder, vinyl acetate and ethylene copolymer rubber powder.Polymer emulsion, its composition can be styrene-butadiene emulsion, polychloroprene latex, benzene emulsion etc.Swelling agent, its composition are that commercially available its composition can be commercially available calcium sulphoaluminate expansion agent series; Also can be commercially available quicklime, Natural manganese dioxide expansion agent series.Wherein mix 0.0001～0.0005 weight part flakey aluminium powder, the aluminium powder fineness is not less than 250 orders.Water reducer, its composition are commercially available polycarboxylate water-reducer, water-reducing rate >=30% wherein, solid content >=20%.Setting accelerator, its staple are a kind of of calcium formiate, calcium aluminum fluoride, lime acetate, calcium nitrite.Retardant, its staple are a kind of in Sunmorl N 60S, calglucon, Trisodium Citrate, the boric acid.Auxiliary rheological agents, its staple are a kind of of Xylo-Mucine, CMC 99.5, TYLOSE 30000, NATROSOL 250, aqueous polyurethane emulsion.Its staple of skimmer is silicone based skimmer, and its staple is a polyether siloxane copolymers.
The preparation method is: the order of addition(of ingredients) of solid material behind the first liquid material, promptly add entry, polymer emulsion, water reducer, auxiliary rheological agents, skimmer etc. successively, and add adulterant, cement, swelling agent, setting accelerator, retardant again, mix through high-speed stirring.
The present invention adopts polymer-modified cement-based material technology, efficiently solves cement matrix and is prone to crisp, problems such as splitting resistance is poor, cohesive force is poor, poor durability.Through adding redispersable latex powder and polymer emulsion, make the inner film that forms of cement slurry, and stop up the inner capillary-size pore of slurry with higher cohesive force.Hydrated cementitious and polymer film forming carry out simultaneously, form interweave the each other network structure of IPN of cement-hydrate and polymkeric substance at last, increase the toughness of hydrate, improve its weather resistance.
The present invention adopts novel swelling agent technology, through reasonable control aluminium powder fineness and content, can realize the expansion of bigger degree; Can not crack again simultaneously,, can shorten the interfacial thickness of patching material and matrix through microdilatancy; Improve the cohesive force of material, and reach the purpose of seamless repair.
The present invention is through mixing a certain amount of polycarboxylate water-reducer; Effectively reduce the mobile required batched water of slurry, suffered resistance when reducing the slurry perfusion, and through mixing special inorganic salt; Influence the formation of cement-hydrate, shrink, prevent to ftracture and improve impervious purpose to reach to reduce.
The present invention is through adding a certain amount of calcium formiate, calcium aluminum fluoride, lime acetate class setting accelerator, and boric acid, lemon acids retardant, can adjust operable time, the early strength of slurry under differing temps, for repairing and open to traffic provides safeguard.
The present invention adopts advanced auxiliary rheological agents technology; Relative content through adjustment Xylo-Mucine, TYLOSE 30000, aqueous polyurethane emulsion; Can mould time etc. to surrender shearing force, viscosity, the vacation of slurry regulates; And then realized slurry under big fluidised form with good education resistance can, effectively prevented the problems such as laitance, segregation, layering of patching material.
The present invention adopts polyethers-type siloxane silicone antifoam agent technology, and this skimmer can still have higher froth breaking ability under the strong basicity environment, can effectively reduce the blister on patching material surface, and can reduce the bubble of introducing in patching material stirring, the course of conveying.
Last the present invention through first liquid material after low speed, the still system technology of mixing of solid material; Promptly add entry, aqueous epoxy resins, polymer emulsion, water reducer, auxiliary rheological agents, skimmer etc. successively, add adulterant, cement, swelling agent, setting accelerator, retardant again, mix slowly to close through long period low speed and form; Effectively avoided the introducing of bubble in the whipping process; Especially the introducing of air pocket makes fully release of bubble quilt in the solid material, simultaneously Gu the material surface is fully wetting by the liquid material.
Material adopts the building materials industry conventional criteria among the embodiment.
Embodiment:
Further set forth content of the present invention below in conjunction with embodiment, but content of the present invention is not limited only to following examples.
The railway ballastless track structure repair of present embodiment is to be mixed together at the scene by superfine cement, adulterant, redispersable latex powder, polymer emulsion, swelling agent, water reducer, setting accelerator, retardant, auxiliary rheological agents, skimmer with the ultra pulp material of injection early.The weight part of each component is:
Gained fresh concrete mixture performance index are: slump cone extends to 500mm required time 4s, and divergence is 650mm, and " J " ring discrepancy in elevation is 14mm, and " L " appearance time is 9s, and " L " appearance both sides aspect ratio is 0.91; The properties of hardened concrete index is: 3d ultimate compression strength 18.0MPa, 28d ultimate compression strength 41.0MPa, 328 coulombs of 56d displacement fluxes, freeze-thaw-cycle index 64 times, 56d drying shrinkage value 280 * 10
-6
Claims (6)
1. a railway plate-type ballastless track is used autodensing concrete almixture, it is characterized in that, the shared weight part of component is: cement: 100 parts, and mineral admixture: 20～80 parts; Fine aggregate: 200～300 parts, coarse aggregate: 250～350, rubber powder: 2～10, polypropylene fibre 1～3; Swelling agent: 10～25 parts, water reducer: 1.0～3.0 parts, retardant: 0.1～1 part; Auxiliary rheological agents: 0.01～0.05 part, skimmer: 0.001 part, water: 60～80 parts; Stir and process by above-mentioned mixing of materials.
2. use autodensing concrete almixture according to the said a kind of railway plate-type ballastless track of claim 1, it is characterized in that, said cement is low alkali silicate cement; Said mineral admixture mainly consists of flyash, ground slag, silicon ash, limestone powder; Said fine aggregate can be river sand or machine-processed sand, and its fineness modulus is 2.5～4.0; Said coarse aggregate is ls, the Irish touchstone that particle diameter is not more than 16mm, and wherein 10～16mm part must not be less than 20%.
3. a kind of railway plate-type ballastless track according to claim 1 is used autodensing concrete almixture; It is characterized in that; Said swelling agent is one of the swelling agent that mixes the following series of 0.0001～0.0005 weight part flakey aluminium powder: calcium sulphoaluminate series; Quicklime is serial, Natural manganese dioxide is serial, and said aluminium powder fineness is not less than 250 orders.
4. a kind of railway plate-type ballastless track according to claim 1 is used autodensing concrete almixture, it is characterized in that, said retardant staple is one of Sunmorl N 60S, calglucon, calcium lignin sulphonate.
5. a kind of railway plate-type ballastless track according to claim 1 is used autodensing concrete almixture; It is characterized in that, said auxiliary rheological agents staple be Xylo-Mucine, CMC 99.5, TYLOSE 30000, NATROSOL 250, aqueous polyurethane emulsion it
6. a kind of railway plate-type ballastless track according to claim 1 is used autodensing concrete almixture, it is characterized in that the weight part of said each component is:
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058494A (en) * | 2006-04-23 | 2007-10-24 | 柳州欧维姆机械股份有限公司 | CA mortar dry powder for plate-type slag-free orbit |
| CN102030509A (en) * | 2010-10-20 | 2011-04-27 | 广东龙湖科技有限公司 | Grouting material for repairing freeway subgrade |
| CN102093000A (en) * | 2010-12-10 | 2011-06-15 | 浙江工业大学 | CRTS II type slab ballastless track cement asphalt (CA) mortar |
-
2011
- 2011-11-07 CN CN 201110347836 patent/CN102503309B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058494A (en) * | 2006-04-23 | 2007-10-24 | 柳州欧维姆机械股份有限公司 | CA mortar dry powder for plate-type slag-free orbit |
| CN102030509A (en) * | 2010-10-20 | 2011-04-27 | 广东龙湖科技有限公司 | Grouting material for repairing freeway subgrade |
| CN102093000A (en) * | 2010-12-10 | 2011-06-15 | 浙江工业大学 | CRTS II type slab ballastless track cement asphalt (CA) mortar |
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