CN110482998A - A kind of light material and preparation method thereof for railway bed - Google Patents
A kind of light material and preparation method thereof for railway bed Download PDFInfo
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- CN110482998A CN110482998A CN201910838928.XA CN201910838928A CN110482998A CN 110482998 A CN110482998 A CN 110482998A CN 201910838928 A CN201910838928 A CN 201910838928A CN 110482998 A CN110482998 A CN 110482998A
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- light material
- railway bed
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- slurry
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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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- 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
- C04B30/00—Compositions for artificial stone, not containing binders
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
-
- 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
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The light material and preparation method thereof that the invention discloses a kind of for railway bed, the present invention regard 0-150 parts of cementitious material, 40-350 parts of admixture, 0-10 parts of foaming agent, 0-20 parts of exciting agent and 50-275 parts of water as raw material, railway bed light material is made by the modes such as drying, filters pressing or sunning, crushing, sieving, mixing, admixture can also be slurry.The present invention improves original technique and effectively solves aquation heat problem, the utilization rate for effectively increasing solid waste using solid waste raw material can be largely added simultaneously, reduces production cost, and it can effectively realize that large scale equipment pumping and long-distance transportation through pipeline, speed of application are fast.The present invention and light material have high-strength light characteristic, without vibrate compacting, fill self-compaction the advantages that, the present invention make road bed generate additional settlement reduce 60-70%, the operational safety of existing line has been effectively ensured.
Description
Technical field
The present invention relates to light material preparation fields, are specifically related to a kind of light material and its system for railway bed
Preparation Method.
Background technique
As high speed railway construction puts more effort, newly built railway is inevitably handed over the high-speed railway for opening operation
Fork, parallel, side is wide or introduces building up station, and similar engineering practice will be more and more.Ballastless track of high-speed railway technology
Extensive use so that requirement of the engineering to settlement after construction is stringenter under the lines such as bridges and culverts, roadbed.Close on the non-fragment orbit of operation
High-speed railway new railway project, additional load will cause ballastless track structure additional settlement to deform.Due to non-fragment orbit rail
Limitation is adjusted in face elevation, and maintenance difficulty is high, influences on operation security very big.If using traditional ground treatment method,
Existing non-fragment orbit ground is disturbed larger, can generate biggish offset deviation, common roadbed filling easily increases both from great
There is non-fragment orbit ground net foundation pressure, increases so as to cause sedimentation, influence the operational safety of existing line.
Therefore it provides a kind of high-strength light fills self-compaction without compacting of vibrating, the additional settlement that road bed generates is small
The light material of railway bed the technical issues of being those skilled in the art's urgent need to resolve.
Summary of the invention
In view of this, the present invention provides a kind of light materials for railway bed；
To achieve the goals above, the present invention adopts the following technical scheme:
For the light material of railway bed, including following raw material: 0-150 parts of admixture cementitious material blends
40-350 parts of material, 0-10 parts of foaming agent, 0-20 parts of exciting agent and 50-275 parts of water.
Further, above-mentioned admixture is solid waste；Above-mentioned solid waste be flyash, 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 water quenching ground-slag, silicon ash, stone
The mixture of any one or more of powder.
Be using above-mentioned further beneficial effect: the above-mentioned raw materials that the present invention uses can be largely useless using national solid
Gurry reduces production cost, protects environment, saves State owned land resource.
Further, above-mentioned light material further includes 0-50 parts of solid additive；Solid additive is the grains of sand, haydite, polyphenyl
One or more of particle, and partial size is less than 5mm.
Further, above-mentioned light material further includes 0-5 parts of fiber, and fiber is polypropene staple and/or wood-fibred.
Further, above-mentioned gel rubber material is cement and/or clinker.
Further, above-mentioned foaming agent is animal foaming agent, composite high-molecular foaming agent, aluminium powder or hydrogen peroxide etc., foaming
Agent is foamed by physics mode or chemical mode foams；Preferably AES (sodium sulfate of polyethenoxy ether of fatty alcohol), k12 (12
Sodium alkyl sulfate) etc. surfactant-based and animal hair, the protides such as Tea Saponin, compound 6501 (coco-nut oil fatty acid two
Glycollic amide), cellulose, the admixtures such as preservative or reinforcing agent.
It is using above-mentioned further beneficial effect: by introducing foaming agent, material internal can be made to can produce largely
The closed foam of fine uniform, to guarantee that product has high-strength light, thermal insulation separation thermal property.
Further, above-mentioned exciting agent is polycarboxylic acid salt, alcamines, naphthalene sulfonic acids class, Na2SO4, sodium hydroxide, waterglass,
One or more of alkaline waste pulp.
Further, it is sodium polycarboxylate, polycarboxylic acids potassium and polycarboxylic acids ammonium that above-mentioned polycarboxylate substance, which is selected,；Alcamines object
Matter selects methyl diethanolamine, diethanol amine；Naphthylsulfonic acids select 1-naphthalene sulfonic aicd, 2- naphthalene sulfonic acids, 3- methyl naphthalene sulfonic acid.
It is using above-mentioned further beneficial effect: the Product Activity in solid waste can be effectively excited, to mention
High product intensity.
The present invention also provides the preparation methods of the above-mentioned light material for railway bed, comprising the following steps:
(1) admixture is dried, filters pressing or sunning, until admixture moisture is≤20% or admixture is slurry,
The ratio that the solid matter of middle fineness≤75 μm accounts for solid total material in slurry is 70% or more；Ratio weighs respectively in parts by weight
Raw material；
(2) admixture after drying is carried out crushed 200-325 mesh, it is spare；
(3) admixture after sieving in step (2), exciting agent, cementitious material are mixed, obtains mixture；
(4) mixture and water that step (3) obtains 2-5min is stirred to obtain blending slurry under the conditions of 40-60r/min；
(5) foaming agent is foamed, after foam is mixed with the slurry that step (4) obtains cast in situs or
Prefabrication is 300-1200kg/m at dry density3Foam concrete product to get the light material for railway bed.
Further, drying temperature is 80-200 DEG C in above-mentioned steps (1)；Drying time is 30-120min.
Further, the mode of foaming process physical blowing or chemical blowing；
It is required according to Project design, material internal can overlay one or more of steel wire, fiber, TGXG
Compared with prior art the beneficial technical effect of the present invention lies in: on formula basis of the invention increase or replace
The light energy conservation material that can obtain different application is changed after raw material,
Solving the raw material in traditional processing technology is mainly cement, and hydrated cementitious thermal response, which is acutely easy to produce, to be split
Line, production cost is higher, and since production of avoiding the peak hour leads to problems such as raw material supply influence the duration not in time；The present invention is to original
Aquation heat problem can effectively be solved by having technique to improve, while can largely be added using solid waste raw material, be effectively improved
The utilization rate of solid waste, reduces production cost, and can effectively realize that large scale equipment pumping and long-distance pipe are defeated
It send, speed of application is fast.
The present invention and light material have high-strength light characteristic, without vibrate compacting, fill self-compaction the advantages that, this
The additional settlement that invention generates road bed reduces 60-70%, and the operational safety of existing line has been effectively ensured.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1
The preparation method of railway bed light material:
It (1) is 5% in 80 DEG C of drying 120min to moisture by molybdic tailing；Accurately weigh drying after molybdic tailing 180kg,
42.5 class g cement 120kg, potassium silicate 10kg, waterglass 2kg, water 165kg, foaming agent 0.5kg；
(2) molybdic tailing after drying is carried out crushed 200 meshes, obtains partial size in 74 microns or less molybdic tailing powder, it is standby
With；
(3) the molybdic tailing powder potassium silicate after being sieved in step (2), waterglass are mixed with cement, obtains mixture；
(4) stirring 5min obtains slurry under the conditions of the mixture in step (3) being blended in 40r/min with water；
(5) pouring into mold to be prepared into dry density by slurry is 300kg/m3Foam concrete test block, it is light to obtain railway bed
Material.
It is 300kg/m by density3Test block place 3 days after test block demoulded and is put in standard concrete curing box support
Shield, measures test block pressure resistance intensity after 7 days, 28 days.Such as table 1.
Embodiment 2
The preparation method of railway bed light material:
It (1) is 15% in 200 DEG C of drying 30min to moisture by aluminium ash, the aluminium ash 240kg, cement after accurately weighing drying
Clinker 120kg, desulfurized gypsum 40kg, animal foaming agent 0.6kg, waterglass 2kg, alkaline waste pulp 3kg, water 240kg；
(2) it carries out the aluminium ash after drying crushed 200 meshes, obtains partial size in 74 microns or less aluminium ash, it is spare；
(3) the aluminium ash after sieving in step (2) is mixed with clinker, waterglass, alkaline waste pulp desulfurized gypsum
It closes, obtains mixture；
(4) mixture and water that step (3) obtains are stirred under the conditions of 60r/min 2min and obtains slurry；
(5) spent lye is mixed with slurry obtained in step (4)；
(6) foaming agent is foamed, is prepared into dry density after foam is mixed with the slurry that step (5) obtains
For 400kg/m3Foam concrete test block to get railway bed light material.
It is 400kg/m by density3Test block place 3 days after test block demoulded and is put in standard concrete curing box support
Shield, measures test block pressure resistance intensity after 7 days, 28 days.Such as table 1.
Embodiment 3
The preparation method of railway bed light material:
It (1) is 5% in 120 DEG C of drying 60min to moisture by red mud, steel slag tailing slurry, the red mud after accurately weighing drying
350kg, steel slag tailing slurry 150kg, animal foaming agent 0.5kg, methyl diethanolamine 2kg, 1-naphthalene sulfonic aicd 2kg, water 275kg；
(2) it then carries out the aluminium ash after drying crushed 200 meshes, obtains partial size in 74 microns or less aluminium ash, it is spare；
(3) red mud after being sieved in step (2), methyl diethanolamine, 1-naphthalene sulfonic aicd are mixed with steel slag tailing slurry, is obtained
To mixture；
(4) mixture and water that step (3) obtains are stirred under the conditions of 50r/min 3min and obtains slurry；
(5) foaming agent is foamed, after foam is mixed with the slurry that step (4) obtains, and by slurry matter
The polypropene staple of the 3kg of amount is added in slurry, and pouring into mold and being prepared into dry density is 500kg/m3Foam concrete
Building block, to get railway bed light material.
It is 500kg/m by density3Test block place 3 days after test block demoulded and is put in standard concrete curing box support
Shield, measures test block pressure resistance intensity after 7 days, 28 days.Such as table 1.
Embodiment 4
The preparation method of railway bed light material:
It (1) is 5% in 150 DEG C of drying 90min to moisture by red mud, the red mud 350kg, steel slag tail after accurately weighing drying
Mud 150kg, composite foamable agent 0.5kg, granular polystyrene 15kg, sodium polycarboxylate 5kg, water 275kg；
(2) it then carries out the aluminium ash after drying crushed 200 meshes, obtains partial size in 74 microns or less aluminium ash, it is spare；
(3) granular polystyrene after being sieved in step (2), red mud are mixed with steel slag tailing slurry, obtains mixture；
(4) mixture and water that step (3) obtains are stirred under the conditions of 45r/min 4min and obtains slurry；
(5) foaming agent is foamed, after foam is mixed with the slurry that step (4) obtains, and by slurry matter
The polypropene staple of the 3kg of amount is added in slurry, and pouring into mold and being prepared into dry density is 500kg/m3Foam concrete
Test block is to get railway bed light material.
Embodiment 5
The preparation method of railway bed light material:
It (1) is 5% in 180 DEG C of drying 45min to moisture by slag micro powder, diatomite, the steel slag after accurately weighing drying
Micro mist 120kg, diatomite 80kg, animal foaming agent 0.45kg, grains of sand 25kg, haydite 10kg, Na2SO410kg, sodium hydroxide
10kg, water 200kg；
(2) it then carries out the aluminium ash after drying crushed 325 meshes, obtains partial size in 48 microns or less aluminium ash, it is spare；
(3) aggregate, admixture and the exciting agent after sieving in step (2) are mixed, obtains mixture；
(4) mixture and water that step (3) obtains are stirred under the conditions of 55r/min 5min and obtains slurry；
(5) foaming agent is foamed, after foam is mixed with the slurry that step (4) obtains, and by slurry matter
The polypropene staple of the 3kg of amount is added in slurry, and pouring into mold and being prepared into dry density is 1200kg/m3Foam concrete
Test block is to get railway bed light material.
Test example
The railway bed light material that 1-5 of the embodiment of the present invention is obtained is carried out to continue intensity test, experimental result
Such as table 1.
1 railway bed light material intensity test result of table
Claims (10)
1. a kind of light material for railway bed, which is characterized in that including following raw material: cementitious material 0-150
Part, 40-350 parts of admixture, 0-10 parts of foaming agent, 0-20 parts of exciting agent and 50-275 parts of water.
2. a kind of light material for railway bed according to claim 1, which is characterized in that the admixture is solid
Waste.
3. a kind of light material for railway bed according to claim 2, which is characterized in that the solid waste is
Flyash, tailing, red mud, slag, slag micro powder, steel slag tailing slurry, gypsum, diatomite, aluminium ash, incineration of refuse flyash, mountain flour, water
It quenches the mixture of any one or more of slag or water quenching ground-slag, silicon ash, mountain flour.
4. a kind of light material for railway bed according to claim 1, which is characterized in that further include solid additive
0-50 parts；The solid additive is one or more of the grains of sand, haydite, granular polystyrene；The partial size of the solid additive
Less than 5mm.
5. a kind of light material for railway bed according to claim 1, which is characterized in that it further include 0-5 parts of fiber,
The fiber is polypropene staple and/or wood-fibred.
6. a kind of light material for railway bed according to claim 1, which is characterized in that the gel rubber material is water
Mud and/or clinker.
7. a kind of light material for railway bed according to claim 1, which is characterized in that the foaming agent is animal
Foaming agent, composite high-molecular foaming agent, aluminium powder or hydrogen peroxide.
8. a kind of light material for railway bed according to claim 1, which is characterized in that the exciting agent is poly- carboxylic
Barbiturates, alcamines, naphthalene sulfonic acids class, Na2SO4, sodium hydroxide, waterglass, one or more of alkaline waste pulp.
9. a kind of preparation method of the light material for railway bed, which comprises the following steps:
(1) admixture is dried, filters pressing or sunning, until admixture moisture is 0-20% or admixture is slurry, wherein carefully
The ratio that the solid matter of≤75 μm of degree accounts for solid total material in slurry is 70% or more；By described in claim any one of 1-8
Parts by weight weigh each raw material；
(2) admixture after drying is carried out crushed 200-325 mesh, it is spare；
(3) admixture after sieving in step (2), exciting agent, cementitious material are mixed, obtains mixture；
(4) mixture and water that step (3) obtains 2-5min is stirred to obtain blending slurry under the conditions of 40-60r/min；
(5) foaming agent is foamed, cast in situs or factory after foam is mixed with the slurry that step (4) obtains
Being prefabricated into dry density is 300-1200kg/m3Foam concrete product to get the light material for railway bed.
10. a kind of preparation method of the light material for railway bed according to claim 8, which is characterized in that step
(1) drying temperature described in is 80-200 DEG C；Drying time is 30-120min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910838928.XA CN110482998A (en) | 2019-09-05 | 2019-09-05 | A kind of light material and preparation method thereof for railway bed |
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| CN201910838928.XA CN110482998A (en) | 2019-09-05 | 2019-09-05 | A kind of light material and preparation method thereof for railway bed |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110963765A (en) * | 2019-12-26 | 2020-04-07 | 中交第二航务工程局有限公司 | Foam concrete and method for repairing pavement subsidence by adopting same |
| CN112028579A (en) * | 2020-11-04 | 2020-12-04 | 佛山市交通科技有限公司 | Ceramic polishing slag-based foam light soil and preparation method and application thereof |
| CN112723766A (en) * | 2020-12-31 | 2021-04-30 | 山东大学 | Heat-insulating light material for roadbed in all-solid-waste frozen soil area and preparation method thereof |
| CN113121140A (en) * | 2021-03-08 | 2021-07-16 | 河南科技大学 | Method for preparing active admixture of color sand, roadbed stone and cement from molybdenum ore tailings |
| CN114319311A (en) * | 2022-01-21 | 2022-04-12 | 马鞍山钢铁股份有限公司 | Metallurgical plant and mine railway roadbed filling material and construction method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2019
- 2019-09-05 CN CN201910838928.XA patent/CN110482998A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110963765A (en) * | 2019-12-26 | 2020-04-07 | 中交第二航务工程局有限公司 | Foam concrete and method for repairing pavement subsidence by adopting same |
| CN112028579A (en) * | 2020-11-04 | 2020-12-04 | 佛山市交通科技有限公司 | Ceramic polishing slag-based foam light soil and preparation method and application thereof |
| CN112723766A (en) * | 2020-12-31 | 2021-04-30 | 山东大学 | Heat-insulating light material for roadbed in all-solid-waste frozen soil area and preparation method thereof |
| CN113121140A (en) * | 2021-03-08 | 2021-07-16 | 河南科技大学 | Method for preparing active admixture of color sand, roadbed stone and cement from molybdenum ore tailings |
| CN114319311A (en) * | 2022-01-21 | 2022-04-12 | 马鞍山钢铁股份有限公司 | Metallurgical plant and mine railway roadbed filling material and construction method |
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