CN109734389A - A kind of unballasted track bed plate dew muscle repair materials and its application - Google Patents
A kind of unballasted track bed plate dew muscle repair materials and its application Download PDFInfo
- Publication number
- CN109734389A CN109734389A CN201910136199.3A CN201910136199A CN109734389A CN 109734389 A CN109734389 A CN 109734389A CN 201910136199 A CN201910136199 A CN 201910136199A CN 109734389 A CN109734389 A CN 109734389A
- Authority
- CN
- China
- Prior art keywords
- repair materials
- track bed
- agent
- bed plate
- parts
- 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.)
- Pending
Links
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to non-fragment orbits to repair field, in particular to a kind of unballasted track bed plate dew muscle repair materials and its application.The present invention provides a kind of unballasted track bed plates to reveal muscle repair materials, the component including following mass parts: 21~52 parts of cement；22~62 parts of rubble；10~20 parts of quartz sand；4~18 parts of reinforcing agent；2~10 parts of antimitotic agent；0.5~9 part of water-reducing agent；1~2 part of toughener；0~4 part of setting time regulator；0.5~1 part of color adaptation agent.Reinforcing agent and toughener of the present invention and other components act synergistically, and make the unballasted track bed plate compression strength with higher and good durability obtained after the completion of repair materials reparation.Embodiment the result shows that, 28d compression strength is 36.8~44.2MPa after repair materials slurry of the present invention is hardened, and it is 1.8~3.1MPa, 28d contract with dry rate only -0.01~0.02% that 28d, which splits and draws adhesion strength,.
Description
Technical field
Repair field the invention belongs to non-fragment orbit, in particular to a kind of unballasted track bed plate dew muscle repair materials and its
Using.
Background technique
Non-fragment orbit refers to the track structure for integrally replacing shot ballast bed using concrete, asphalt etc., again
Referred to as ballastless track.Compared with Ballast track, non-fragment orbit avoids splashing railway ballast, with ride comfort is good, stability is good, uses
Service life is long, durability is good, maintenance work is few, train operation when 350 km of scooter more than the advantages that.Non-fragment orbit has because of it
It the advantages that good ride comfort, excellent durability, less later maintenance cost, has been widely used and is built in China express railway
In if.Base plate is non-fragment orbit important support structure, quality be directly related to entire track structure safety and
Durability, base plate construction have become one of core technology of non-fragment orbit.
The base plate of non-fragment orbit is usually to be made of armored concrete, belongs to cast-in-place concrete structure, Concrete Design
Strength grade is C40.Due to concrete mix is unreasonable, construction technology control is not in place, dynamic load repeated stock effect etc.
Reason, pedestal board concrete are easy to appear the hurts such as dew muscle, have seriously affected safety and the durability of ballastless track structure.
Ballastless track of high-speed railway maintenance usually skylight point operation, activity duration 3h~4h, activity duration are short；Base plate
Concrete is by dynamic load repeated action, and base plate requires linking new and old concrete and life requirement is high.But it is existing on the market
Concrete hurt service material be generally polymer mending mortar, the material is long there are setting time, bonds with old concrete
The disadvantages of power is poor, cracking resistance is poor, it is high using rear contract with dry rate, the risk of secondary cracking is also easy to produce after long-time use, thus it is resistance to
Long property is poor.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of unballasted track bed plates to reveal muscle repair materials, there is condensation
The characteristics of time is short, with old concrete adhesion strength height, cracking resistance and superior in durability；The present invention also provides this without the tiny fragments of stone, coal, etc.
The application of rail bed plate dew muscle repair materials.
In order to realize the purpose of foregoing invention, the present invention the following technical schemes are provided:
The present invention provides a kind of unballasted track bed plates to reveal muscle repair materials, the component including following mass parts:
21~52 parts of cement；
22~62 parts of rubble；
10~20 parts of quartz sand；
4~18 parts of reinforcing agent；
2~10 parts of antimitotic agent；
0.5~9 part of water-reducing agent；
1~2 part of toughener；
0~4 part of setting time regulator；
0.5~1 part of color adaptation agent.
Preferably, the cement is sulphate aluminium cement or aluminate cement.
Preferably, the partial size of the rubble is 5~20mm；Flat-elongated particles content is less than or equal in the rubble
5wt.%；The clay content of the rubble is less than or equal to 0.5wt.%.
Preferably, the partial size of the quartz sand is 20~70 mesh.
Preferably, the reinforcing agent is one or both of metakaolin, silicon ash, nano silica and light calcium carbonate powder；
The partial size of the reinforcing agent is 50~200nm；
The toughener is polypropylene fibre, steel fibre, alkali-resistant glass fibre, carbon fiber, aramid fiber, polypropylene fibre
With one of synthetic fibers of nylon or a variety of.
Preferably, the antimitotic agent is swelling agent and/or gypsum；
The water-reducing agent is one in solid-state polycarboxylate water-reducer, solid-state naphthalene water reducer and solid melamine water-reducing agent
Kind；
The setting time regulator is lithium carbonate, lithium hydroxide, lithium chloride, tartaric acid, boric acid, citric acid and glucose
At least two in sour sodium；
The color adaptation agent is one of iron oxide black, chrome green copper, chrome black, cobalt blue, cobalt green, titanium chromium palm fibre and titanium yellow
Or it is a variety of.
The present invention also provides the dew muscle repair materials of unballasted track bed plate described in above-mentioned technical proposal at non-fragment orbit bottom
Seat board reveals the application in muscle reparation.
Preferably, it is described application the following steps are included:
(1) unballasted track bed plate dew muscle repair materials are mixed with water, obtains repairing concrete slurry；
(2) the part old concrete at removal base plate dew muscle reveals top at muscle to there is fresh surfaces, cutting base plate
New straight reinforcing bar is placed after old straight reinforcing bar in stirrup lower edge, is connected new and old reinforcing bar, is obtained pretreatment base plate；
By the pretreatment base plate according to former base plate appearance profile installation template, and in old concrete fresh surfaces table
Face coats interfacial agents, obtains base plate to be poured；
(3) pedestal to be poured for obtaining the reparation concrete slurry casting that the step (1) obtains in the step (3)
In plate, forming processes are carried out；
The step (1) and (2) do not have chronological order.
Preferably, the ratio of water to material mixed in the step (1) is (0.12~0.18): 1.
Preferably, step (2) the median surface agent is high-molecular-weight epoxy interfacial agents.
The present invention provides a kind of unballasted track bed plates to reveal muscle repair materials, the component including following mass parts: cement
21~52 parts；22~62 parts of rubble；10~20 parts of quartz sand；4~18 parts of reinforcing agent；2~10 parts of antimitotic agent；Water-reducing agent 0.5~9
Part；1~2 part of toughener；0~4 part and 0.5~1 part of color adaptation agent of setting time regulator.Non-fragment orbit provided by the invention
Base plate reveal muscle repair materials in, cement can rapid curing condensation in a short time, generate higher hour intensity；Reinforcing agent
It can react with the free lime and high alkalinity hydrated calcium silicate generated in hydrated reaction of cement, generate low alkalinity aquation silicon
Sour calcium, so that the compactness of the concrete of repair materials formation is increased substantially, conducive to the promotion of concrete anti-compression performance；Toughening
Agent is easily dispersed in concrete, and three-dimensional net structure is formed in concrete, and the toughness of concrete hardening body can be improved, benefit
In raising concrete anti-compression cracking resistance；Under reinforcing agent and toughener and other components synergistic effect, reparation can effectively improve
The bonding characteristic of material enhances the compressive property of concrete and resists and splits drawing adhesion strength, not easy to crack, has repaired repair materials
The unballasted track bed plate obtained after compression strength with higher and good durability.Embodiment the result shows that, You Benfa
After the repair materials slurry that bright unballasted track bed plate dew muscle repair materials obtain is hardened 28d compression strength be 36.8~
It is 1.8~3.1MPa, 28d contract with dry rate only -0.01~0.02% that 44.2MPa, 28d, which split and draw adhesion strength,.
Detailed description of the invention
Fig. 1 is that unballasted track bed plate of the present invention reveals muscle portion position schematic diagram, wherein 1 is straight reinforcing bar, 2 be stirrup；
Fig. 2 is that unballasted track bed plate of the present invention reveals muscle reparation schematic diagram, wherein 1 is straight reinforcing bar, 2 be stirrup, and 3 be hard
Old concrete.
Specific embodiment
The present invention provides a kind of unballasted track bed plates to reveal muscle repair materials, the component including following mass parts:
21~52 parts of cement；
22~62 parts of rubble；
10~20 parts of quartz sand；
4~18 parts of reinforcing agent；
2~10 parts of antimitotic agent；
0.5~9 part of water-reducing agent；
1~2 part of toughener；
0~4 part of setting time regulator；
0.5~1 part of color adaptation agent.
In the present invention, if without specified otherwise, all components be commercial goods well known to those skilled in the art i.e.
It can.
In terms of mass parts, unballasted track bed plate dew muscle repair materials provided by the invention include 21~52 parts of cement, excellent
It is selected as 22~51 parts, more preferably 23~50 parts.In the present invention, the cement is preferably sulphate aluminium cement or aluminic acid salt water
Mud.In the present invention, the intensity of the cement is preferably greater than to be equal to 42.5 grades, more preferably 42.5~52.5 grades.In this hair
In bright, the cement is the main component that the unballasted track bed plate reveals muscle repair materials.Heretofore described cement can be with
Rapid curing condensation in a short time generates higher hour intensity.
On the basis of the mass parts of the cement, unballasted track bed plate dew muscle repair materials provided by the invention include broken
22~62 parts of stone, preferably 23~61 parts, more preferably 24~60 parts.In the present invention, the partial size of the rubble be preferably 5~
20mm.In the present invention, flat-elongated particles content is preferably less than and is equal to 5wt.% in the rubble, more preferably 0~
3wt.%.In the present invention, the clay content of the rubble, which is preferably less than, is equal to 0.5wt.%, more preferably 0~0.3wt.%.
In the present invention, the parent rock intensity of the rubble is preferably greater than to be equal to 80MPa, more preferably 80~120MPa.In the present invention
In, the crush index of the rubble preferably meets rubble I class index request.In the present invention, the rubble preferably flower hilllock
Rock.In the present invention, the rubble is the main component that the non-fragment orbit reveals muscle repair materials.
On the basis of the mass parts of the cement, unballasted track bed plate dew muscle repair materials provided by the invention include stone
10~20 parts of sand, preferably 11~19 parts, more preferably 12~18 parts.In the present invention, the partial size of the quartz sand is preferred
For 20~70 mesh.
On the basis of the mass parts of the cement, unballasted track bed plate dew muscle repair materials provided by the invention include increasing
Strong 4~18 parts of agent, preferably 5~17 parts, more preferably 6~16 parts.In the present invention, the reinforcing agent is preferably higher ridge
One or both of soil, silicon ash, nano silica and light calcium carbonate powder.In the present invention, when the reinforcing agent is two kinds of compoundings
In use, the dioxide-containing silica contained in enhancer component after the reinforcing agent compounding is preferably greater than to be equal to 60wt.%, more
Preferably 60~80wt.%.In the present invention, the partial size of the reinforcing agent is preferably 50~200nm.In the present invention, described
Contain a large amount of active silicas or activated Calcium carbonate in reinforcing agent, grain diameter is small, with the free stone generated after hydrated cementitious
Ash and high alkalinity hydrated calcium silicate react, and low alkalinity hydrated calcium silicate are generated, to increase substantially non-fragment orbit pedestal
The compactness of the concrete obtained after plate dew muscle repair materials hardening.
On the basis of the mass parts of the cement, unballasted track bed plate dew muscle repair materials provided by the invention include anti-
Split 2~10 parts of agent, preferably 3~9 parts, more preferably 4~8 parts.In the present invention, the antimitotic agent be preferably swelling agent and/
Or gypsum.In the present invention, the gypsum is preferably one of anhydrite, semi-hydrated gypsum and dihydrate gypsum or a variety of.
On the basis of the mass parts of the cement, unballasted track bed plate dew muscle repair materials provided by the invention include subtracting
0.5~9 part of aqua, preferably 1~9 part, more preferably 1.5~9 parts.In the present invention, the water-reducing agent is preferably that solid-state is poly-
One of carboxylic acid water reducer, solid-state naphthalene water reducer and solid melamine water-reducing agent.
On the basis of the mass parts of the cement, unballasted track bed plate dew muscle repair materials provided by the invention include increasing
Tough dose 1~2 part, preferably 1.1~2 parts, more preferably 1.2~1.9 parts.In the present invention, the toughener is preferably poly- third
One of alkene fiber, steel fibre, alkali-resistant glass fibre, carbon fiber, aramid fiber, polypropylene fibre and synthetic fibers of nylon or
It is a variety of.In the present invention, it is formed in the concrete that the toughener obtains after non-fragment orbit dew muscle repair materials hardening
Three-dimensional net structure improves the toughness of concrete.
On the basis of the mass parts of the cement, unballasted track bed plate dew muscle repair materials provided by the invention include solidifying
0~4 part of time adjustment agent of knot, preferably 0.5~3.5 part, more preferably 1~3 part.In the present invention, the setting time tune
Section agent preferably includes at least two in coagulant and/or the specific substance of retarder.In the present invention, the coagulant preferably wraps
Include one of lithium carbonate, lithium hydroxide and lithium chloride or a variety of；The retarder preferably includes tartaric acid, citric acid, boric acid
With one of sodium gluconate or a variety of.In the present invention, the coagulant addition content is higher, and setting time is faster；Slow setting
Agent admixture is more, and setting time is slower.The present invention adjusts unballasted track bed plate by setting time regulator and reveals muscle reparation material
The setting time of material.
On the basis of the mass parts of the cement, unballasted track bed plate dew muscle repair materials provided by the invention include face
0.5~1 part of color regulator, preferably 0.6~1 part, more preferably 0.6~0.9 part.In the present invention, the color adaptation agent
Preferably one of iron oxide black, chrome green copper, chrome black, cobalt blue, cobalt green, titanium chromium palm fibre and titanium yellow or a variety of.The present invention passes through
The color adaptation agent adjusts color after repair materials hardening, makes itself and old concrete solid colour.
In the present invention, the raw material of the dew muscle repair materials of unballasted track bed plate described in above-mentioned technical proposal is directly mixed
Uniformly, the unballasted track bed plate dew muscle repair materials can be obtained.In the present invention, it is preferred to by the non-fragment orbit pedestal
It is spare that plate dew muscle repair materials are packaged into bag, directly will unballasted track bed plate dew muscle reparation material in repairing construction
Material and water are used in mixed way, convenient and efficient.
The present invention also provides the dew muscle repair materials of unballasted track bed plate described in above-mentioned technical proposal at non-fragment orbit bottom
Seat board reveals the application in muscle reparation.
In the present invention, the application preferably includes following steps:
(1) unballasted track bed plate dew muscle repair materials are mixed with water, obtains repairing concrete slurry；
(2) the part old concrete at removal base plate dew muscle reveals top at muscle to there is fresh surfaces, cutting base plate
New straight reinforcing bar is placed after old straight reinforcing bar in stirrup lower edge, is connected new and old reinforcing bar, is obtained pretreatment base plate；
In the dew muscle portion position of the pretreatment base plate according to former base plate appearance profile installation template, and in old concrete
Fresh surfaces surface coats interfacial agents, obtains base plate to be poured；
(3) pedestal to be poured for obtaining the reparation concrete slurry casting that the step (1) obtains in the step (3)
In plate, forming processes are carried out；
The step (1) and (2) do not have chronological order.
In the present invention, in the application dosage of each component and aforementioned unballasted track bed plate dew muscle repair materials skill
The dosage of component is consistent in art scheme, and details are not described herein.
The present invention preferably mixes unballasted track bed plate dew muscle repair materials with water, obtains repairing concrete grout
Material.In the present invention, the mixed ratio of water to material is preferably (0.12~0.18): 1.The present invention does not have the mixed mode
Particular determination, using hybrid mode well known to those skilled in the art.The present invention is not special to the mixed equipment
It limits, using mixing apparatus well known to those skilled in the art.In an embodiment of the present invention, the mixing apparatus is specific
For forced concrete mixer.
It obtains after repairing concrete slurry, the present invention removes the part old concrete at base plate dew muscle to there is fresh boundary
Face, cutting base plate, which reveals, places new straight reinforcing bar in stirrup lower edge after the old straight reinforcing bar in top at muscle, connects new and old reinforcing bar, obtains pre- place
Manage base plate.
The present invention preferably removes the part old concrete at base plate dew muscle to there are fresh surfaces.The present invention is gone to described
The mode removed is not particularly limited, using removing method well known to those skilled in the art.In the present invention, described old mixed
The surface for coagulating soil is contained more dirty, and surface old concrete is loose, cementitiousness is poor, is unfavorable for unballasted track bed plate dew muscle
The bonding reparation of repair materials and old concrete.The present invention removes old concrete surface portion old concrete, expose without dirty and
The old concrete interface of firm compact, the i.e. fresh surfaces of old concrete are conducive to old concrete and institute's unballasted track bed plate
Dew muscle repair materials are combined closely, and cracking are reduced, to improve unballasted track bed plate durability.In the present invention, described
Part old concrete refers to a part of unballasted track bed plate dew muscle portion position old concrete；In the present invention, the tool of the removal
Body volume/area size divides concrete condition to determine according to dew muscle portion, and to expose, color is fresh, old concrete interface of compact structure
Subject to.In the present invention, after removing part old concrete, the fresh hard old concrete in lower part is obtained, such as old coagulation hard in Fig. 2
Shown in soil 3.
After obtaining fresh surfaces, the present invention, which is cut off, places new straight reinforcing bar in hoop after the rectilinear reinforcement on top at base plate dew muscle
Muscle lower edge connects new and old reinforcing bar, obtains pretreatment base plate.The present invention is not particularly limited the mode of the cutting, uses
Cutting-off method well known to those skilled in the art.After cutting, the present invention obtains the old straight line that base plate dew muscle portion position is exposed
It is end reinforced.In the present invention, the new and old reinforcing bar refers to new straight reinforcing bar and the old rectilinear reinforcement end that base plate dew muscle portion position is exposed
Portion.In the present invention, the placement direction of the new straight reinforcing bar is the direction parallel with former rectilinear reinforcement, new straight reinforcing bar and old straight steel
The connection relationship of muscle preferably overlaps；The stirrup lower edge refers to the lower edge of stirrup horizontal component, and stirrup is realized to rectilinear reinforcement
It is fixed.In the present invention, the new reinforcing bar is placed under the horizontal component of stirrup 2 in stirrup lower edge, such as reinforcing bar 1 straight in Fig. 2
Edge.The present invention is not particularly limited the method for the connection, using connection method well known to those skilled in the art.?
In the present invention, the mode of the connection is preferably welded.In the present invention, the welding is preferably resistance spot welding.The present invention is logical
The connection type for crossing resistance spot welding obtains weld seam full, without hole and flawless.
After obtaining pretreatment base plate, the present invention is preferably in the dew muscle portion position of the obtained pretreatment base plate according to original
Base plate appearance profile installation template, and interfacial agents are coated on old concrete fresh surfaces surface, obtain base plate to be poured.This
Invention is not particularly limited the material of the template, using template material well known to those skilled in the art.In this hair
In bright, the interfacial agents are preferably high-molecular-weight epoxy interfacial agents.In the present invention, the dosage of the interfacial agents be preferably 0.2~
0.4kg/m3.By the present invention in that improving the adhesive property of old concrete and repair materials, and then after raising reparation with interfacial agents
The anti-cracking performance of base plate.
It obtains repairing concrete slurry and after pouring base plate, the present invention is preferably by the reparation concrete slurry casting
In described wait pour in base plate, forming processes are carried out.The present invention is not particularly limited the mode poured, using ability
Mode is poured known to field technique personnel.The unballasted track bed plate is revealed muscle reparation by way of pouring by the present invention
In the reparation concrete slurry casting to base plate template that material obtains, the concrete for repairing base plate lack part is filled up.?
In the present invention, the forming processes preferably include to vibrate, receive light and setting weathering.In the present invention, the frequency vibrated
Preferably 3~12kHz.The present invention receives light after preferably vibrating immediately.The present invention is not particularly limited the mode for receiving light, adopts
With receipts light mode well known to those skilled in the art.In the present invention, the gradient of the weathering is preferably 2%.
After forming processes, unballasted track bed plate that the present invention is repaired.
Muscle repair materials are revealed to unballasted track bed plate provided by the invention below with reference to embodiment and its application carries out in detail
Thin explanation, but they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1
Weigh 52.5 grades of aluminate cement 23kg, 5~20mm naturally cleaning rubble 52kg (clay content 0.2wt.%, faller gill
Shape granule content 3.0wt.%), 20~70 mesh quartz sand 10kg, silicon ash 5kg, swelling agent 6kg, alkali-resistant glass fibre 2kg, diminishing
Agent powder polycarboxylic acids 1kg, lithium carbonate 0.2kg, citric acid 0.3kg and iron oxide black 0.5kg are mixed, and non-fragment orbit bottom is obtained
Seat board reveals muscle repair materials.
Water is weighed by ratio of water to material 0.13 and reveals muscle repair materials with obtained unballasted track bed plate, uses forced concrete
Blender stirs 180s, obtains repairing concrete slurry.
Embodiment 2
Weigh 52.5 grades of sulphate aluminium cement 32kg, 5~20mm naturally cleaning rubble 31kg (clay content 0.3wt.%, needle
Sheet-like particle content 2.7wt.%), 20~70 mesh quartz sand 13kg, metakaolin 6kg, silicon ash 1.4kg, swelling agent 7kg, poly- third
Alkene fiber 0.4kg, carbon fiber 0.8kg, powder naphthalene water reducer 6kg, sodium hydroxide lithium 0.3kg, tartaric acid 0.3kg, boric acid
1kg, iron oxide black 0.3kg and chrome green copper 0.5kg are mixed, and unballasted track bed plate dew muscle repair materials are obtained.
Water is weighed by ratio of water to material 0.15 and reveals muscle repair materials with obtained unballasted track bed plate, uses forced concrete
Blender stirs 180s, obtains repairing concrete slurry.
Embodiment 3
Weigh 42.5 grades of sulphate aluminium cement 47kg, 5~20mm naturally cleaning rubble 22kg (clay content 0.4wt.%, needle
Sheet-like particle content 1.8wt.%), 20~70 mesh quartz sand 19kg, nano silica 4kg, gypsum 2kg, steel fibre 2kg, powder
Last polycarboxylate water-reducer 2kg, lithium chloride 1kg, tartaric acid 0.5kg, chrome black 0.3kg and cobalt green 0.2kg mixing, obtain non-fragment orbit
Base plate reveals muscle repair materials.
Water is weighed by ratio of water to material 0.17 and reveals muscle repair materials with obtained unballasted track bed plate, uses forced concrete
Blender stirs 180s, obtains repairing concrete slurry.
Application examples 1
The old concrete of base plate dew muscle section is cut, until leaking out fresh hard concrete, cuts off upper straight steel
Muscle, and new reinforcing bar is placed in stirrup lower edge, new and old reinforcing bar is connected by way of resistance spot welding, then will reveal the old coagulation in muscle portion position
The dross of native fresh surfaces applies after cleaning out according to base plate original profile installation targets, then on old concrete fresh surfaces surface
Brush high-molecular-weight epoxy interfacial agents, obtain base plate to be poured, by concrete slurry casting described in embodiment 1 in base plate to be poured
It is interior, after successively vibrating by 3~8kHz, receiving 2% weathering of light and setting, complete to repair unballasted track bed plate dew muscle portion position
It is multiple.
Application examples 2
In addition to using concrete slurry described in embodiment 2, remaining operation is identical as application examples 1.
Application examples 3
In addition to using concrete slurry described in embodiment 3, remaining operation is identical as application examples 1.
Compression strength will be tested after reparation concrete slurry hardening described in Examples 1 to 3,28d splits and draws adhesion strength and 28d
Contract with dry rate, test result are shown in Table 1.
1 Examples 1 to 3 of table repairs test result after concrete slurry hardening
| Test item | Testing standard | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| 2h compression strength/MPa | GB/T50081-2002 | 24.1 | 22.8 | 26.7 |
| 1d compression strength/MPa | GB/T50081-2002 | 32.5 | 34.7 | 38.9 |
| 28d compression strength/MPa | GB/T50081-2002 | 36.8 | 40.7 | 44.2 |
| 28d splits drawing adhesion strength/MPa | JTJ/T271-99 | 1.8 | 2.6 | 3.1 |
| 28d contract with dry rate/% | GB/T50082-2009 | -0.01 | 0.02 | 0.01 |
Seen from table 1, the reparation concrete slurry of the embodiment of the present invention 1~3, the concrete 2h obtained after hardened are anti-
Compressive Strength is up to 22.8~26.7MPa, and it is fast that unballasted track bed plate reveals muscle repair materials rate of set, while 1d compression strength reaches
32.5~38.9MPa, 28d compression strength illustrate unballasted track bed plate dew muscle reparation of the present invention up to 36.8~44.2MPa
Material has high compression strength；28d split tensile strength illustrates unballasted track bed plate of the present invention up to 1.8~3.1MPa
There is dew muscle repair materials highly resistance to split drawing adhesion strength, and bonding characteristic is strong, not easy to crack, repair materials and old concrete caking property
It can be strong；28d contract with dry rate is low up to -0.01~0.02%, 28d contract with dry rate, illustrates that unballasted track bed plate dew muscle of the present invention is repaired
Cubical contraction is low after the slurry hardening that multiple material is formed, and deforms small, it is ensured that volume stability of concrete makes repair materials
The unballasted track bed plate obtained after the completion of repairing has good durability.
In addition, unballasted track bed plate dew muscle repair materials provided by the invention are convenient to use, nothing can be significantly improved
Tiny fragments of stone, coal, etc. rail bed plate reveals the working efficiency of muscle repair, has great application value.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of unballasted track bed plate reveals muscle repair materials, the component including following mass parts:
21~52 parts of cement；
22~62 parts of rubble；
10~20 parts of quartz sand；
4~18 parts of reinforcing agent；
2~10 parts of antimitotic agent；
0.5~9 part of water-reducing agent；
1~2 part of toughener；
0~4 part of setting time regulator；
0.5~1 part of color adaptation agent.
2. unballasted track bed plate according to claim 1 reveals muscle repair materials, which is characterized in that the cement is sulphur aluminium
Acid salt cement or aluminate cement.
3. unballasted track bed plate according to claim 1 reveals muscle repair materials, which is characterized in that the partial size of the rubble
For 5~20mm；Flat-elongated particles content is less than or equal to 5wt.% in the rubble；The clay content of the rubble is less than or equal to
0.5wt.%.
4. unballasted track bed plate according to claim 1 reveals muscle repair materials, which is characterized in that the grain of the quartz sand
Diameter is 20~70 mesh.
5. unballasted track bed plate according to claim 1 reveals muscle repair materials, which is characterized in that the reinforcing agent is inclined
One or both of kaolin, silicon ash, nano silica and light calcium carbonate powder；The partial size of the reinforcing agent is 50~200nm；
The toughener is polypropylene fibre, steel fibre, alkali-resistant glass fibre, carbon fiber, aramid fiber, polypropylene fibre and Buddhist nun
One of imperial synthetic fibers are a variety of.
6. unballasted track bed plate according to claim 1 reveals muscle repair materials, which is characterized in that the antimitotic agent is swollen
Swollen dose and/or gypsum；
The water-reducing agent is one of solid-state polycarboxylate water-reducer, solid-state naphthalene water reducer and solid melamine water-reducing agent；
The setting time regulator is lithium carbonate, lithium hydroxide, lithium chloride, tartaric acid, boric acid, citric acid and sodium gluconate
In at least two；
The color adaptation agent is one of iron oxide black, chrome green copper, chrome black, cobalt blue, cobalt green, titanium chromium palm fibre and titanium yellow or more
Kind.
7. unballasted track bed plate described in claim 1~6 any one reveals muscle repair materials and reveals in unballasted track bed plate
Application in muscle reparation.
8. application according to claim 7, which is characterized in that it is described application the following steps are included:
(1) unballasted track bed plate dew muscle repair materials are mixed with water, obtains repairing concrete slurry；
(2) the part old concrete at removal base plate dew muscle is to there are fresh surfaces, and top is old straight at cutting base plate dew muscle
New straight reinforcing bar is placed after reinforcing bar in stirrup lower edge, is connected new and old reinforcing bar, is obtained pretreatment base plate；
By the pretreatment base plate according to former base plate appearance profile installation template, and applied on old concrete fresh surfaces surface
Interfacial agents are covered, base plate to be poured is obtained；
(3) base plate to be poured for obtaining the reparation concrete slurry casting that the step (1) obtains in the step (3)
It is interior, carry out forming processes；
The step (1) and (2) do not have chronological order.
9. application according to claim 8, which is characterized in that the ratio of water to material mixed in the step (1) be (0.12~
0.18): 1.
10. application according to claim 8, which is characterized in that step (2) the median surface agent is high-molecular-weight epoxy interface
Agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910136199.3A CN109734389A (en) | 2019-02-25 | 2019-02-25 | A kind of unballasted track bed plate dew muscle repair materials and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910136199.3A CN109734389A (en) | 2019-02-25 | 2019-02-25 | A kind of unballasted track bed plate dew muscle repair materials and its application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109734389A true CN109734389A (en) | 2019-05-10 |
Family
ID=66368218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910136199.3A Pending CN109734389A (en) | 2019-02-25 | 2019-02-25 | A kind of unballasted track bed plate dew muscle repair materials and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109734389A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110565457A (en) * | 2019-08-21 | 2019-12-13 | 中铁四院集团岩土工程有限责任公司 | Method for renovating exposed reinforcing steel bars of ballastless track base and repairing structure |
| CN110590298A (en) * | 2019-09-04 | 2019-12-20 | 西南交通大学 | Acid rain freezing-resistant repair material for concrete structure of rail transit engineering |
| CN110590297A (en) * | 2019-09-04 | 2019-12-20 | 西南交通大学 | Acid rain corrosion resistant repair material for high-strength concrete structural engineering in rail transit |
| CN110655370A (en) * | 2019-09-04 | 2020-01-07 | 西南交通大学 | Acid rain resistant repair material for medium-strength concrete structure in rail transit engineering by wet spraying method |
| CN110950613A (en) * | 2019-10-30 | 2020-04-03 | 武汉市汉阳市政建设集团有限公司 | Super early strength black steel fiber concrete casting material and use method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3516547B2 (en) * | 1996-03-14 | 2004-04-05 | 電気化学工業株式会社 | Spraying material and spraying method using it |
| CN105819792A (en) * | 2016-03-28 | 2016-08-03 | 杨跃 | Repair process for rapidly-formed concrete and expansion joints |
| CN106316291A (en) * | 2016-08-22 | 2017-01-11 | 北京中德新亚建筑技术有限公司 | Ballastless track bed concrete defect repairing material |
| CN107117918A (en) * | 2016-02-25 | 2017-09-01 | 张彬 | A kind of quick setting and rapid hardening ungauged regions disturbance rejection self-compacting concrete and preparation method thereof |
| CN107572981A (en) * | 2017-10-25 | 2018-01-12 | 安徽中铁工程材料科技有限公司 | Self-compacting concrete for concrete repair and preparation method thereof |
-
2019
- 2019-02-25 CN CN201910136199.3A patent/CN109734389A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3516547B2 (en) * | 1996-03-14 | 2004-04-05 | 電気化学工業株式会社 | Spraying material and spraying method using it |
| CN107117918A (en) * | 2016-02-25 | 2017-09-01 | 张彬 | A kind of quick setting and rapid hardening ungauged regions disturbance rejection self-compacting concrete and preparation method thereof |
| CN105819792A (en) * | 2016-03-28 | 2016-08-03 | 杨跃 | Repair process for rapidly-formed concrete and expansion joints |
| CN106316291A (en) * | 2016-08-22 | 2017-01-11 | 北京中德新亚建筑技术有限公司 | Ballastless track bed concrete defect repairing material |
| CN107572981A (en) * | 2017-10-25 | 2018-01-12 | 安徽中铁工程材料科技有限公司 | Self-compacting concrete for concrete repair and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 杨杨等: "《土木工程材料》", 31 July 2018, 武汉大学出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110565457A (en) * | 2019-08-21 | 2019-12-13 | 中铁四院集团岩土工程有限责任公司 | Method for renovating exposed reinforcing steel bars of ballastless track base and repairing structure |
| CN110590298A (en) * | 2019-09-04 | 2019-12-20 | 西南交通大学 | Acid rain freezing-resistant repair material for concrete structure of rail transit engineering |
| CN110590297A (en) * | 2019-09-04 | 2019-12-20 | 西南交通大学 | Acid rain corrosion resistant repair material for high-strength concrete structural engineering in rail transit |
| CN110655370A (en) * | 2019-09-04 | 2020-01-07 | 西南交通大学 | Acid rain resistant repair material for medium-strength concrete structure in rail transit engineering by wet spraying method |
| CN110590298B (en) * | 2019-09-04 | 2021-11-23 | 西南交通大学 | Acid rain freezing-resistant repair material for concrete structure of rail transit engineering |
| CN110590297B (en) * | 2019-09-04 | 2022-02-11 | 西南交通大学 | Acid rain corrosion resistant repair material for high-strength concrete structural engineering in rail transit |
| CN110950613A (en) * | 2019-10-30 | 2020-04-03 | 武汉市汉阳市政建设集团有限公司 | Super early strength black steel fiber concrete casting material and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109734389A (en) | A kind of unballasted track bed plate dew muscle repair materials and its application | |
| CN107298546B (en) | Alkali-activated carbonatite cementitious material and its Method of printing for 3D printing | |
| CN104961411B (en) | A kind of high-performance powder concrete for 3D printing | |
| RU2599742C2 (en) | Geopolymer composite for ultra-high quality concrete | |
| Memon et al. | Effect of silica fume on the fresh and hardened properties of fly ash-based self-compacting geopolymer concrete | |
| CN106587862B (en) | Ultra-fine type self-compaction mending mortar solidifying fastly and preparation method thereof | |
| CN108017345A (en) | A kind of ultrahigh-performance cement-based patching material and preparation method thereof | |
| CN110218056B (en) | Strain hardening powder concrete, preparation method thereof and application thereof in bridge construction | |
| CN109503103A (en) | A kind of superhigh tenacity alkali-activated carbonatite gunite concrete and preparation method thereof | |
| CN105622009B (en) | A kind of ultra-high performance concrete matrix without silicon ash and preparation method thereof | |
| CN103274652A (en) | Reactive powder concrete for reinforcing buildings as well as preparation method and construction method thereof | |
| CN110526631A (en) | Fly ash-based geopolymer material and preparation method thereof for solidifying chromium slag | |
| CN107572981A (en) | Self-compacting concrete for concrete repair and preparation method thereof | |
| CN110423074B (en) | High-thixotropy quick-hardening self-compacting concrete for construction of CRTS III plate type track skylight and preparation method | |
| JP2013091982A (en) | Repair method of road floor slab | |
| CN109824321A (en) | A kind of prefabricated pervious concrete of curing with carbon dioxide and preparation method thereof | |
| CN107761496A (en) | A kind of curing agent of the thick extra large mud widening subgrade of Powder Piles Reinforcement and preparation method thereof | |
| CN108706928A (en) | A kind of brick concrete mixed regeneration coarse aggregate concrete and preparation method thereof | |
| CN101886474B (en) | Construction method for densifying surface layer of middle/low-strength concrete | |
| CN108191357A (en) | A kind of enhancing C30 flyash-haydite concretes and preparation method thereof | |
| CN109293311A (en) | Ultra-high performance concrete slurry, ultra-high performance concrete and preparation method thereof | |
| CN111704398A (en) | Recycled concrete based on old material of lime-fly-ash gravel base and preparation method thereof | |
| JP2648653B2 (en) | Construction method of hardened cement bitumen grout for railway | |
| CN110294621A (en) | Based on the inorganic fast repairing material of potassium magnesium phosphate cement non-fragment orbit and preparation method | |
| CN110423068A (en) | A kind of superelevation is strong, high pervious concrete building block and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190510 |
|
| RJ01 | Rejection of invention patent application after publication |