CN110483096A - A kind of railway bed light material and preparation method thereof - Google Patents
A kind of railway bed light material and preparation method thereof Download PDFInfo
- Publication number
- CN110483096A CN110483096A CN201910838962.7A CN201910838962A CN110483096A CN 110483096 A CN110483096 A CN 110483096A CN 201910838962 A CN201910838962 A CN 201910838962A CN 110483096 A CN110483096 A CN 110483096A
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- China
- Prior art keywords
- railway bed
- light material
- bed light
- foaming agent
- preparation
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Classifications
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- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- 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)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a kind of railway bed light materials, include the raw material of following parts by weight: 0~250 part of cementitious material, 40~400 parts of admixture, gather materials 0~100 part, 0~10 part of foaming agent and 50~500 parts of water.The preparation method comprises the following steps: (1) weighs raw material；(2) by cementitious material, admixture, gather materials and water mix, stirring, obtain slurry；(3) foaming agent is subjected to foaming and forms foam, be added in slurry obtained by step (2) and mix, obtain foamed slurry；(4) by foamed slurry carry out cast in situs or pour into mold to get.The inside of railway bed of the present invention light material is porous structure, with high-strength light, high fluidity, the characteristic for filling self-compaction, significantly increase the additional stress and bearing capacity of railway bed, can effectively solve railway bed conventional filler because be self-possessed it is excessive caused by subgrade settlement the problems such as.
Description
Technical field
The present invention relates to building material technical field, more particularly to a kind of railway bed light material and its
Preparation method.
Background technique
Currently, China's existing railway mileage is longer, and newly built railway is continuously increased, and railway is divided into from soil railway roadbed type to be had
Tiny fragments of stone, coal, etc. track and two kinds of non-fragment orbit, other than bridge and rock subgrade, either Ballast track or non-fragment orbit are all pavings
It is located on soil filled-up ground, and various soil filled-up grounds, shape and volume all can be by the aqueous quantitative changes of embankment soil
The influence of change and change, finally make railroad track shift or settle.
But that there are intensity is insufficient, is easy to happen offset, settles and rise soil, uses for existing most railway bed
Service life short disadvantage, meanwhile, it will also result in frozen earth roadbed offset because of the thawing of frozen soil in frozen soil embankment section, settle and turn over
Slurry emits mud, so that railway bed maintenance cycle is short, maintenance cost is high.
Moreover, the preparation method of existing railway bed is mostly cast in situs, due to by weather or construction equipment performance
Influence and the raw material supply reasons such as not in time, cause the construction period longer, and production equipment is mostly auto-manual system, construct
Quality not can guarantee.
Therefore, how to develop a kind of railway bed material of high intensity and conveniently preparation method is this field
The problem of technical staff's urgent need to resolve.
Summary of the invention
It is an object of that present invention to provide a kind of railway bed light materials and preparation method thereof, to solve in the prior art
Deficiency.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of railway bed light material includes the raw material of following parts by weight: 0~250 part of cementitious material, admixture
40~400 parts, gather materials 0~100 part, 0~10 part of foaming agent and 50~500 parts of water.
Further, above-mentioned cementitious material is any one of cement, clinker or two kinds of mixing.
It is that cement, clinker form firm Behavior of Hardened Cement Paste after reacting with water using above-mentioned further beneficial effect,
To gather materials, it is integral firmly to bond with admixture, and railway bed light material is made to have excellent physical and mechanical property.
Further, above-mentioned admixture is flyash, tailing, red mud, slag, slag micro powder, steel slag tailing slurry, gypsum, diatom
Any in the industrial solid castoffs such as soil, aluminium ash, incineration of refuse flyash, mountain flour, Water Quenching Slag or water quenching ground-slag, silicon ash, mountain flour
Kind or several mixtures.
Further, above-mentioned admixture both can be solid-state, or liquid.
It is using above-mentioned further beneficial effect, by flyash, tailing, red mud, slag, steel slag, steel slag tailing slurry, stone
The industrial solid castoffs such as cream, diatomite, aluminium ash, incineration of refuse flyash are added in railway bed light material, can a large amount of benefits
With national solid waste, cement can not only be saved, reduce production cost, moreover it is possible to improve railway bed light material mix
Workability, improve its density, impermeability and chemical corrosion resistance etc.；Meanwhile effectively increasing the utilization of solid waste
Rate solves the problems, such as solid waste stockpiling to greatest extent, protects environment, saves State owned land resource.
Further, above-mentioned to gather materials for the mixing of any one or more of haydite, granular polystyrene, the grains of sand.
Further, the above-mentioned fine aggregate to gather materials for partial size no more than 5mm.
It is using above-mentioned further beneficial effect, haydite, granular polystyrene, the grains of sand are in railway bed light material
Mainly rise skeleton function, and can reduce due to cementitious material condensation hardening process in because of drying shrinkage bulking caused by volume become
To change, increases the compression strength of product, flexural strength improves product cracking resistance, improve the thermal property of product, durability, together
When, as cheap packing material, additionally it is possible to reduce the cost of railway bed light material.
Further, above-mentioned foaming agent is in animal foaming agent, composite high-molecular foaming agent, aluminium powder, hydrogen peroxide etc.
It is any, preferably AES (sodium sulfate of polyethenoxy ether of fatty alcohol), k12 (lauryl sodium sulfate) etc. it is surfactant-based with
And animal hair, the protides such as Tea Saponin, compound 6501 (cocoanut fatty acid diethanolamides), cellulose, preservative or increasing
The admixtures such as strong agent.
It is using above-mentioned further beneficial effect, by introducing foaming agent, inside can produce a large amount of fine uniform envelopes
The foam closed, to guarantee that product has high-strength light, thermal insulation separation thermal property；Wherein animal foaming dosage form at foam table
Layer intensity is high, and foam is stablized, and it is in independent closed state, bubble that railway bed, which is added, with the bubble formed in light material product
It is not connected between bubble, permeability resistance is good；Compound foaming agent is big with gas release, absorptivity is low, even density, foamy body
High, the advantages that duration is long, be added railway bed in light material product, make it have moisturizing, impervious, heat preservation, lightweight,
The effect of sound insulation.
The preparation method of above-mentioned railway bed light material, specifically includes the following steps:
(1) each raw material is weighed by the parts by weight of above-mentioned railway bed light material；
(2) by cementitious material, admixture, gather materials and water mixes, 5~20min is stirred with the revolving speed of 80~100r/min, is obtained
To slurry；
(3) foaming agent is subjected to foaming and forms foam, then foam is added in slurry obtained by step (2) and mixes, obtains
Foamed slurry；
(4) foamed slurry obtained by step (3) is subjected to cast in situs or pours into mold to get railway bed lightweight material
Material.
Further, in above-mentioned steps (4), the specific steps of cast in situs are as follows: be pumped to foamed slurry obtained by step (3)
Work zone is successively poured, and every layer pours height and is less than 1m.
Further, when cast in situs, according to design requirement, fibre can also be added in above-mentioned railway bed light material
Dimension, steel wire, lacing wire.
Further, in above-mentioned steps (4), the specific steps of mold are poured into are as follows: foamed slurry obtained by step (3) is poured into mould
Tool is made diameter as the sphere structure or globoid structure or volume of 0.1~100cm and is no more than 3m3Polyhedral structure.
Further, above-mentioned steps (4) further include: the product formed after mold will be poured into and transported to work zone progress
Vehicle heap is unloaded or is manually put, and with filler materials such as soil, normal concrete, cast-in-place foamed concretes that the filling of periphery hole is close
It is real.
It can be seen via above technical scheme that compared with prior art, the beneficial effects of the present invention are:
1, the inside of railway bed of the present invention light material is porous structure, has high-strength light, high fluidity, filling
The characteristic of self-compaction significantly increases the additional stress and bearing capacity of railway bed, can effectively solve railway bed conventional filler
Because caused by self weight is excessive the problems such as subgrade settlement；
2, railway bed of the present invention is effectively increased with a large amount of industrial solid castoff raw material is added in light material
The utilization rate of solid waste solves the problems, such as solid waste stockpiling to greatest extent, while also reducing production cost.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1
Railway bed light material is made of the raw material of following weight: 42.5 class g cement 250kg, flyash 100kg,
Foaming agent 0.4kg, water 200kg.
The preparation method comprises the following steps:
(1) each raw material is weighed by the weight of above-mentioned railway bed light material；
(2) stirring system is added in 42.5 class g cements, flyash and water to mix, 20min is stirred with the revolving speed of 80r/min,
Obtain slurry；
(3) foaming agent is subjected to foaming and forms foam, then foam is added in slurry obtained by step (2) and passes through mixer
It realizes mixing immediately, obtains foamed slurry；
(4) foamed slurry obtained by step (3) is pumped to work zone successively to be poured, every layer pours and is highly
0.8m carries out next layer of construction after initial setting strength to be achieved to get railway bed light material.
Embodiment 2
Railway bed light material, is made of raw material from the following weight: clinker 250kg, tailing 400kg, grain
Diameter is haydite 100kg, composite foamable agent 0.4kg and the water 340kg of 2mm.
The preparation method comprises the following steps:
(1) each raw material is weighed by the weight of above-mentioned railway bed light material；
(2) stirring system is added in clinker, tailing, haydite and water to mix, is stirred with the revolving speed of 100r/min
10min obtains slurry；
(3) foaming agent is subjected to foaming and forms foam, then foam is added in slurry obtained by step (2) and passes through mixer
It realizes mixing immediately, obtains foamed slurry；
(4) foamed slurry obtained by step (3) is poured into mold, the sphere structure that diameter is 100cm is made by production line,
Up to railway bed light material；
(5) then railway bed is transported with light material to construction site, is put in such a way that vehicle heap unloads to construction
Operation area, and it is with cast-in-place foamed concrete that the filling of periphery hole is closely knit.
Embodiment 3
Railway bed light material, is made of raw material from the following weight: 42.5 class g cement 200kg, slag micro powder
350kg, granular polystyrene 50kg, foaming agent 0.35kg and the water 310kg that partial size is 1mm.
Preparation method:
(1) each raw material is weighed by the weight of above-mentioned railway bed light material；
(2) stirring system is added in 42.5 class g cements, steel slag, granular polystyrene and water to mix, is stirred with the revolving speed of 90r/min
5min obtains slurry；
(3) foaming agent is subjected to foaming and forms foam, then foam is added in slurry obtained by step (2) and passes through mixer
It realizes mixing immediately, obtains foamed slurry；
(4) foamed slurry obtained by step (3) is pumped to work zone, steel wire is added according to design requirement, is carried out
It successively pours, it is 0.5m that every layer, which pours height, and next layer of construction is carried out after initial setting strength to be achieved to get railway bed lightweight
Material.
Performance detection
The railway bed that 1-3 of the embodiment of the present invention is obtained is carried out continuing intensity test, test knot with light material
Fruit is as shown in table 1.
1 railway bed of table light material intensity test result
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of railway bed light material, which is characterized in that include the raw material of following parts by weight: cementitious material 0~250
Part, 40~400 parts of admixture, gather materials 0~100 part, 0~10 part of foaming agent and 50~500 parts of water.
2. a kind of railway bed light material according to claim 1, which is characterized in that the cementitious material is water
Any one of mud, clinker or two kinds of mixing.
3. a kind of railway bed light material according to claim 1, which is characterized in that the admixture is fine coal
Ash, tailing, red mud, slag, slag micro powder, steel slag tailing slurry, gypsum, diatomite, aluminium ash, incineration of refuse flyash, mountain flour, Water Quenching Slag
Or the mixture of any one or more of water quenching ground-slag, silicon ash, mountain flour.
4. a kind of railway bed light material according to claim 1, which is characterized in that described to gather materials for haydite, gather
The mixing of any one or more of benzene particle, the grains of sand.
5. a kind of railway bed light material according to claim 1, which is characterized in that the foaming agent is animality
Any one of foaming agent, compound foaming agent, aluminium powder, hydrogen peroxide.
6. a kind of preparation method of railway bed light material, which is characterized in that specifically includes the following steps:
(1) each raw material is weighed by the parts by weight of any one of Claims 1 to 5 railway bed light material；
(2) by cementitious material, admixture, gather materials and water mix, stirring, obtain slurry；
(3) foaming agent is subjected to foaming and forms foam, then foam is added in slurry obtained by step (2) and mixes, obtains foam
Slurry；
(4) foamed slurry obtained by step (3) is subjected to cast in situs or pours into mold to get the railway bed lightweight material
Material.
7. a kind of preparation method of railway bed light material according to claim 6, which is characterized in that in step (2),
The revolving speed of the stirring is 80~100r/min, and the time is 5~20min.
8. a kind of preparation method of railway bed light material according to claim 6, which is characterized in that in step (4),
The specific steps of the cast in situs are as follows: foamed slurry obtained by step (3) is pumped to work zone and is successively poured.
9. a kind of preparation method of railway bed light material according to claim 6, which is characterized in that in step (4),
The specific steps for pouring into mold are as follows: foamed slurry obtained by step (3) is poured into mold, sphere structure, globoid structure is made
Or polyhedral structure.
10. a kind of preparation method of railway bed light material according to claim 9, which is characterized in that the sphere
Structure, globoid structure diameter be 0.1~100cm, the volume of the polyhedral structure is no more than 3m3。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910838962.7A CN110483096A (en) | 2019-09-05 | 2019-09-05 | A kind of railway bed light material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910838962.7A CN110483096A (en) | 2019-09-05 | 2019-09-05 | A kind of railway bed light material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113000562A (en) * | 2021-03-08 | 2021-06-22 | 张建华 | Solid sealing method for hazardous waste solid material |
| CN113636856A (en) * | 2021-08-26 | 2021-11-12 | 安徽理工大学 | Self-foaming light material for municipal solid waste incineration bottom ash and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104761276A (en) * | 2015-03-13 | 2015-07-08 | 西南交通大学 | Foam light-weight concrete material used in railroads subgrade bed bottom layer |
| CN105036790A (en) * | 2015-06-29 | 2015-11-11 | 河南华泰建材开发有限公司 | Lightweight foam soil for changing and filling special metro subgrade |
| CN105174997A (en) * | 2015-08-07 | 2015-12-23 | 河南华泰建材开发有限公司 | Light foamed soil for high speed railway station maintenance and change filling |
-
2019
- 2019-09-05 CN CN201910838962.7A patent/CN110483096A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104761276A (en) * | 2015-03-13 | 2015-07-08 | 西南交通大学 | Foam light-weight concrete material used in railroads subgrade bed bottom layer |
| CN105036790A (en) * | 2015-06-29 | 2015-11-11 | 河南华泰建材开发有限公司 | Lightweight foam soil for changing and filling special metro subgrade |
| CN105174997A (en) * | 2015-08-07 | 2015-12-23 | 河南华泰建材开发有限公司 | Light foamed soil for high speed railway station maintenance and change filling |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113000562A (en) * | 2021-03-08 | 2021-06-22 | 张建华 | Solid sealing method for hazardous waste solid material |
| CN113000562B (en) * | 2021-03-08 | 2022-06-17 | 张建华 | Method for fixing and sealing hazardous waste solid material |
| CN113636856A (en) * | 2021-08-26 | 2021-11-12 | 安徽理工大学 | Self-foaming light material for municipal solid waste incineration bottom ash and preparation method thereof |
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