CN106278013A - Subway plate-type ballastless track self-compacting concrete material and its production and use - Google Patents
Subway plate-type ballastless track self-compacting concrete material and its production and use Download PDFInfo
- Publication number
- CN106278013A CN106278013A CN201610590704.8A CN201610590704A CN106278013A CN 106278013 A CN106278013 A CN 106278013A CN 201610590704 A CN201610590704 A CN 201610590704A CN 106278013 A CN106278013 A CN 106278013A
- Authority
- CN
- China
- Prior art keywords
- concrete material
- ballastless track
- type ballastless
- subway
- plate
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
nullThe present invention provides a kind of high-performance to have high mobility、Property and education resistance are passed through in gap，Only just can uniform closely knit molding without vibrating by its Gravitative Loads when pouring，And the subway plate-type ballastless track packed layer concrete special material with high-durability and high volume stability and its production and use，The component of wherein said concrete material and consumption are respectively as follows: cement 350 850Kg/M3，Coarse aggregate 750 1800Kg/M3，Fine aggregate 700 1200Kg/M3，Compensate and shrink admixture 0 65Kg/M3，Polymeric additives 1 20Kg/M3，Silicon ash 0 30Kg/M3，The particle diameter of described coarse aggregate is 3 16mm，The particle diameter of described fine aggregate is less than 5mm，Various raw material moisture content are less than 1.0%，During use, amount of water is the 7 10% of dry material.The preparation method of described concrete material comprises the following steps: first to choose raw material by above-mentioned composition and consumption, then uses mechanical agitation more than 5 minutes, then uses waterproof and dampproof packaging.It is special that described concrete material is applicable to subway plate-type ballastless track packed layer.
Description
[technical field]
The present invention relates to a kind of concrete material and its production and use, particularly relate to subway plate-type ballastless rail
Road packed layer self-compacting concrete concrete material and its production and use.
[background of invention]
In the development of past railway, Ballast track has captured the leading position of railway construction, along with sending out of national economy
Exhibition, the requirement to railway operation speed is more and more higher, and due to the Ballast track restriction to speed, railway construction has welcome without tiny fragments of stone, coal, etc. rail
The road epoch.Along with China's rapid economic development, each city domestic accelerates the construction of city underground, underground railway track construction technology
The most perfect, then after drawing the successful experience of Construction of Ballastless Track above high-speed railway, refer to ballastless track of high-speed railway
Application on technology subway work again, for the special operation condition of existing subway, has world-class water with China high ferro builds
Flat plate-type ballastless track system compares, and analyzes pluses and minuses, it is intended to improve subway system more quality services.Summing up me
On the basis of state's existing high ferro non-fragment orbit research and application experience, in conjunction with non-fragment orbit Research on Technological Innovation achievement, intend exploitation
Subway ballastless track system.For packed layer material, track plates structure, track elasticity under the limit method of slab track, plate
And the aspect such as design theory system forms Project items, my department assume responsibility for subway unballasted track packed layer self-compaction coagulation in system
Research and development task the acquirement of soil are satisfied with achievement.The used material of subway unballasted track packed layer is normal concrete at present
And grouting material, there is obvious technological deficiency in each of which.The wherein poor fluidity of normal concrete, needs during cast to shake
Smash, constructional difficulties, cannot construct in subway tunnel small space, have a strong impact on construction speed.Grouting material is as mortar simultaneously
There is volume poor stability in series products, the easily shortcoming of cracking, and intensity level has big difference and causes system not match, it is impossible to former
Component cooperation, after construction, effect is undesirable.
[summary of the invention]
The technical problem to be solved is that existing subway plate-type ballastless track packed layer uses conventional concrete to make
Become that constructional difficulties, strength development be slow, system does not matches defect.
For solving above-mentioned technical problem, the present invention provides to use in a kind of high-performance subway plate-type ballastless track packed layer and passes
System concrete material, its component and consumption are respectively as follows: cement 350-850Kg/M3, coarse aggregate 750-1800Kg/M3, fine aggregate
700-1200Kg/M3, compensate and shrink admixture 0-65Kg/M3, polymeric additives 1-20Kg/M3, silicon ash 0-30Kg/M3, described
The particle diameter of coarse aggregate is 3-16mm, and the particle diameter of described fine aggregate is less than 5mm, and various raw material moisture content are less than 1.0%, during use
Amount of water is the 7-10% of dry material.
Further, described high-performance subway plate-type ballastless track self-compacting concrete material reaches the time of design strength
Less than 28 days.
Further, described coarse aggregate is rubble or natural pebble.
Further, described fine aggregate is natural sand, artificial sand or industrial slag.
Further, described compensation shrinks admixture selected from levigate calcined alunite or various UEA, HEA.
Further, described polymeric additives is polycarboxylic acid cement water reducing agent or soluble polymer.
The present invention further provides a kind of high-performance subway plate-type ballastless track packed layer self-compacting concrete material
Preparation method, it comprises the following steps: first to choose raw material by following proportioning: cement 350-850Kg/M3, coarse aggregate 750-
1800Kg/M3, fine aggregate 700-1200Kg/M3, compensate and shrink admixture 0-65Kg/M3, polymeric additives 1-20Kg/M3, silicon
Ash 0-30Kg/M3, the particle diameter of described coarse aggregate is 3-16mm, and the particle diameter of described fine aggregate is less than 5mm, various raw material moisture content
Less than 1.0%, during use, amount of water is the 7-10% of dry material.Then mechanical agitation is used more than 5 minutes；Use waterproof and dampproof again
Packaging.
The present invention also provides for the purposes of a kind of high performance flowing concrete material, and described concrete material is applied to subway
Application in terms of plate-type ballastless track packed layer.
The present invention also provides for the purposes of a kind of high performance flowing concrete soil material, and described concrete material is on high iron plate
Application in terms of formula non-fragment orbit packed layer.
The present invention also provides for the purposes of a kind of high performance flowing concrete material, and described concrete material is tied at concrete
Application in terms of structure confined space construction.
Therefore, the invention have benefit that a kind of high performance flowing concrete concrete material of offer, it has
Property and education resistance are passed through in high mobility, gap, only just can uniform closely knit one-tenth without vibrating by its Gravitative Loads when pouring
Type, and there is the feature such as high-durability and high volume stability.
[specific embodiment]
High-performance subway plate-type ballastless track packed layer self-compacting concrete material of the present invention include cement, coarse aggregate,
Fine aggregate, compensation shrink admixture, polymeric additives, silicon ash etc..Each amounts of components is respectively as follows: cement 350-850Kg/M3,
Coarse aggregate 750-1800Kg/M3, fine aggregate 700-1200Kg/M3, compensate and shrink admixture 0-65Kg/M3, polymeric additives 1-
20Kg/M3, silicon ash 0-30Kg/M3, the particle diameter of described coarse aggregate is 3-16mm, and the particle diameter of described fine aggregate is less than 5mm, various former
Material moisture content is less than 1.0%, and during use, amount of water is the 7-10% of dry material.Wherein cement is 42.5 grades of normal silicate water
Mud or 52.5 grades of Portland cements or sulfur rate acid salt cement.According to local resource situation, coarse aggregate can be used alone broken
Stone or natural pebble, it is also possible to use rubble and natural pebble simultaneously.The particle diameter of coarse aggregate is 3-16mm.According to local resource
Situation, fine aggregate can be used alone natural sand, artificial sand or industrial slag, it is also possible to use natural sand, artificial sand and industry simultaneously
Slag.Wherein industrial slag can be water quenching granulating blast-furnace cinder, phosphorus slag etc..The particle diameter of fine aggregate is less than 5mm.
According to local resource situation, compensate shrink admixture can be used alone levigate calcined alunite, various UEA or
HEA, it is also possible to simultaneously use levigate calcined alunite, various UEA and HEA.Add compensation contraction admixture and can make concrete material
Ungauged regions after material hydration and hardening, so that newly-increased component is good with the synchronization stress performance of original structure in new casting process.According to
Local resource situation, polymeric additives can be used alone polycarboxylic acid cement water reducing agent or soluble polymer, also
Polycarboxylic acid cement water reducing agent and soluble polymer can be used simultaneously.Wherein soluble polymer can be latex powder
Deng.The effect of polymeric additives be Concrete Structure material mobility and with former concrete and the cohesive force of reinforcing bar.Silicon ash
Add also for the mobility strengthening solidifying soil material.
High-performance subway plate-type ballastless track packed layer self-compacting concrete material of the present invention can reach as shown in table 1
Technical specification:
Table 1
From table 1 it follows that high-performance subway plate-type ballastless track packed layer self-compaction concrete special of the present invention
Material has more excellent mobility than conventional concrete material, scene add water stirring both can, without vibration, construct convenient, available
Construct in subway plate-type ballastless track packed layer.It is also seen that high performance flowing concrete material of the present invention has following
Feature:
1, self-compacting concrete is compared with other packed layer material, its technique is simple, stable performance, good endurance, one-tenth
This is cheap.
2, fill adjustment: uniformly support track plates comprehensively, eliminate the gap between track plates and base, after accurate adjustment
Track plates position, absolute altitude precision affect less, affect error in allowed band；It is conveniently adjusted rail height, improves construction effect
Maintainability when rate and infrastructure deformation.
3, load power transmission: bear the vertical force transmitted by track plates and vertically and horizontally horizontal force, and pass it on base and
Stopping means；Dispersion High-speed Train Loads.
4, durable sound deadening shock absorption: the self-compacting concrete layer after hardening and track plates contact surface, it is possible to can produce small,
Equally distributed pore, but do not interfere with the bond effect of concrete and track plates, to the use of platy ballastless track structure and
Endurance quality impact is less.The micro-bubble being evenly distributed inside self-compacting concrete has good eradicating efficacy to noise, suitable
The bradyseism effect of train is played positive role by the elastic modelling quantity of degree.
Therefore, high performance flowing concrete material of the present invention is particularly well-suited to non-fragment orbit filling in Rail Transit System
Layer aspect construction, is also particularly suitable the construction of xoncrete structure confined space.
A kind of preparation method of above-mentioned concrete material for reinforcing high-performance structure project, its comprise the following steps: first by
Following proportioning chooses raw material: cement 350-850Kg/M3, coarse aggregate 750-1800Kg/M3, fine aggregate 700-1200Kg/M3, compensate
Shrink admixture 0-65Kg/M3, polymeric additives 1-20Kg/M3, silicon ash 0-30Kg/M3, the particle diameter of described coarse aggregate is 3-
16mm, the particle diameter of described fine aggregate is less than 5mm, and various raw material moisture content are less than 1.0%, and during use, amount of water is dry material
7-10%；Then mechanical agitation is used more than 5 minutes；Use waterproof and dampproof packaging again.Made strength grade of concrete is C40
To C60.
The concrete preparation process of concrete material for reinforcing high-performance structure project of the present invention is illustrated below in conjunction with embodiment.
Embodiment 1
A kind of strength grade is the concrete material for reinforcing high-performance structure project of C30, and its concrete preparation method is as follows:
First choose raw material by form 1: (unit: Kg/M3)
| Cement | UEA | Fine aggregate | Coarse aggregate | Polycarboxylate | Water |
| 350 | 40 | 850 | 720 | 3.55 | 185 |
Table 2
Wherein cement is 42.5 grades of Portland cements, and UEA is Shanghai Cement Plant UEA, and fine aggregate modulus is 2.7mm,
Coarse aggregate size is 3-16mm, and polycarboxylate is the auspicious high-efficiency water-reducing agent of poly-carboxylic acid in Shanghai three.Then with mechanical agitation 3 minutes with
On, use waterproof and dampproof packaging.The mechanical agitation that adds water during use more than 5 minutes.
Embodiment 2
A kind of strength grade is the high performance flowing concrete material of C60, and its concrete preparation method is as follows:
First choose raw material by form 3: (unit: Kg/M3)
| Cement | UEA | Fine aggregate | Coarse aggregate | Polycarboxylate | Water | Latex powder |
| 650 | 65 | 920 | 780 | 4.53 | 190 | 1.8 |
Table 3
Wherein cement is 42.5 grades of Portland cements, and UEA is Shanghai Cement Plant UEA, and fine aggregate modulus is 2.7mm,
Coarse aggregate size is 3-16mm, and polycarboxylate is the auspicious high-efficiency water-reducing agent of poly-carboxylic acid in Shanghai three.Then with mechanical agitation 3 minutes with
On, use waterproof and dampproof packaging.The mechanical agitation that adds water during use more than 5 minutes.
Embodiment 3
A kind of strength grade is the high performance flowing concrete material of C80, and its concrete preparation method is as follows:
First choose raw material by form 4: (unit: Kg/M3)
| Cement | Silicon ash | Fine aggregate | Coarse aggregate | Polycarboxylate | Fiber | Water | Latex powder |
| 820 | 80 | 900 | 950 | 5.28 | 0.6 | 180 | 2.8 |
Table 4
Wherein cement is 52.5 grades of Portland cements, and silicon ash is Sweden's Ai Erken silicon ash, and fine aggregate modulus is
2.8mm, coarse aggregate size is 3-10mm, and polycarboxylate is the auspicious high-efficiency water-reducing agent of poly-carboxylic acid in Shanghai three.Then by mechanical agitation 3 points
More than clock, use waterproof and dampproof packaging.The mechanical agitation that adds water during use more than 5 minutes.
All polycarboxylate high-efficiency water reducing agents, the soluble large molecule polymer being applied to concrete are all applicable to this
Bright, numerous to list herein.Each raw material bound value of the present invention all can realize the present invention, numerous to list herein.
Claims (11)
1. a subway plate-type ballastless track self-compacting concrete material, including following components: cement 350-850Kg/M3, slightly
Aggregate 750-1800Kg/M3, fine aggregate 700-1200Kg/M3, compensate and shrink admixture 0-65Kg/M3, polymeric additives 1-
20Kg/M3, silicon ash 0-30Kg/M3, the particle diameter of described coarse aggregate is 3-16mm, and the particle diameter of described fine aggregate is less than 5mm, each component
Moisture content is respectively less than 1.0%, and during use, amount of water is the 7-10% of each component weight.
2. subway plate-type ballastless track self-compacting concrete material as claimed in claim 1, it is characterised in that: described coagulation
Soil material reached the time of design strength less than 56 days.
3. subway plate-type ballastless track self-compacting concrete material as claimed in claim 2, it is characterised in that: described coagulation
It is 28 days that soil material reaches the time of design strength.
4. subway plate-type ballastless track self-compacting concrete material as claimed in claim 1, it is characterised in that: described thick bone
Material is selected from rubble and/or natural pebble.
5. subway plate-type ballastless track self-compacting concrete material as claimed in claim 1, it is characterised in that: described thin bone
One or more in natural sand, artificial sand or industrial slag of material.
6. subway plate-type ballastless track self-compacting concrete material as claimed in claim 1, it is characterised in that: described compensation
Shrink one or more in levigate calcined alunite or various UEA, HEA of admixture.
7. subway plate-type ballastless track self-compacting concrete material as claimed in claim 1, it is characterised in that: described polymerization
One or more in polycarboxylic acid cement water reducing agent or soluble polymer of thing additive.
8. a preparation method for concrete material as claimed in claim 1, it comprises the following steps: first to select by following proportioning
Take raw material: cement 350-850Kg/M3, coarse aggregate 750-1800Kg/M3, fine aggregate 700-1200Kg/M3, compensate and shrink admixture
0-65Kg/M3, polymeric additives 1-20Kg/M3, silicon ash 0-30Kg/M3, the particle diameter of described coarse aggregate is 3-16mm, described carefully
The particle diameter of aggregate is less than 5mm, and various raw material moisture content are less than 1.0%, and during use, amount of water is the 7-10% of dry material.Then
Raw material is stirred, then uses waterproof and dampproof packaging.
9. the purposes of a concrete material as claimed in claim 1, it is characterised in that: described concrete material is on ground iron plate
Application in terms of formula non-fragment orbit packed layer.
10. the purposes of a concrete material as claimed in claim 1, it is characterised in that: described concrete material is in high ferro
Application in terms of plate-type ballastless track packed layer.
The purposes of 11. 1 kinds of concrete materials as claimed in claim 1, it is characterised in that: described concrete material is at coagulation
Application in terms of soil structure confined space construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610590704.8A CN106278013A (en) | 2016-07-25 | 2016-07-25 | Subway plate-type ballastless track self-compacting concrete material and its production and use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610590704.8A CN106278013A (en) | 2016-07-25 | 2016-07-25 | Subway plate-type ballastless track self-compacting concrete material and its production and use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106278013A true CN106278013A (en) | 2017-01-04 |
Family
ID=57652210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610590704.8A Pending CN106278013A (en) | 2016-07-25 | 2016-07-25 | Subway plate-type ballastless track self-compacting concrete material and its production and use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106278013A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112341100A (en) * | 2020-11-24 | 2021-02-09 | 上海美创建筑材料有限公司 | Special concrete for structural reinforcement and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101445342A (en) * | 2008-11-24 | 2009-06-03 | 上海美创建筑材料有限公司 | Concrete material for reinforcing high-performance structure project, preparation method and use thereof |
-
2016
- 2016-07-25 CN CN201610590704.8A patent/CN106278013A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101445342A (en) * | 2008-11-24 | 2009-06-03 | 上海美创建筑材料有限公司 | Concrete material for reinforcing high-performance structure project, preparation method and use thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112341100A (en) * | 2020-11-24 | 2021-02-09 | 上海美创建筑材料有限公司 | Special concrete for structural reinforcement and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107285704A (en) | A kind of high strength micro expansion grouting material of cement base | |
| CN102775099B (en) | Economic active powder concrete mixed superfine cement | |
| CN109437700B (en) | Unpowered-transportation self-compacting concrete and application thereof | |
| CN104402337B (en) | Preparation and application of dry-mixed mortar for plate-type ballastless track self-compacting concrete | |
| CN104591680B (en) | A kind of water resistant dispersion high bonding cement based grouting material | |
| CN105439502A (en) | Self-compacting concrete for CRTS III plate-type ballastless track filling layer and preparation method for self-compacting concrete | |
| CN104030638A (en) | Rubber elastic self-compaction concrete for plate-type ballastless tracks | |
| CN106946520A (en) | A kind of ultra-high performance concrete of the coarse aggregate containing basalt and preparation method thereof | |
| CN104402338A (en) | Preparation and application of two-component self-compacting concrete for slab ballastless track | |
| CN101560082A (en) | Ultrahigh-strength active powder concrete and preparation method thereof | |
| CN104829160B (en) | A kind of special viscosity modified material of III template self-compacting concretes of CRTS | |
| CN100999399A (en) | Autodensing concrete using polycarboxylic acid series additive and its technology | |
| Liu et al. | Improving the properties of recycled aggregate pervious pavement blocks through bio-mineralization | |
| CN114702294B (en) | Solid waste based super-retarding cementing material and preparation method and application thereof | |
| CN105622009A (en) | Silica fume-free ultra-high performance concrete matrix and preparation method thereof | |
| CN108675694A (en) | A kind of morning weather-proof geo-polymer pervious concrete by force | |
| CN110294615A (en) | A kind of large fluidity spread concrete and preparation method thereof | |
| CN102807340B (en) | Reactive powder concrete doped with superfine cement | |
| CN103979874A (en) | Self-compacting concrete and production process quality control method thereof | |
| CN105645864A (en) | Steam-curing-free high-flowability low-carbon environment-friendly concrete matrix and manufacturing method thereof | |
| CN106278013A (en) | Subway plate-type ballastless track self-compacting concrete material and its production and use | |
| CN111620630B (en) | Super-long underwater pile foundation machine-made sand self-compacting concrete and preparation method thereof | |
| CN111072339B (en) | Silt composite curing agent and silt curing method | |
| CN106220089A (en) | High-performance structure project concrete material and its production and use | |
| CN101781110A (en) | Reactive powder concrete for cable trough cover boards of railways |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |
|
| WD01 | Invention patent application deemed withdrawn after publication |