CN107253847A - The method that a kind of utilization ocean waste silt prepares environmentally friendly arenolite - Google Patents
The method that a kind of utilization ocean waste silt prepares environmentally friendly arenolite Download PDFInfo
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- CN107253847A CN107253847A CN201710510693.2A CN201710510693A CN107253847A CN 107253847 A CN107253847 A CN 107253847A CN 201710510693 A CN201710510693 A CN 201710510693A CN 107253847 A CN107253847 A CN 107253847A
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- Prior art keywords
- environmentally friendly
- mud
- arenolite
- parts
- curing
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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
- C04B28/24—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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/0418—Wet materials, e.g. slurries
-
- 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention provides the method that a kind of utilization ocean waste silt prepares environmentally friendly arenolite, comprise the following steps：（1）Impurity removing is removed in filtering（2）Dehydration reduction moisture content（3）The uniform stirring curing process such as mud and curing agent, additive, exciting agent are obtained into curing sludge（4）Curing sludge is molded using suitable method and cobble shape is made（5）Maintenance 7 ~ 10 days.The present invention has the distinguishing features such as performance is stable, cost is low, environmentally friendly using environmentally friendly arenolite material made from discarded ocean mud.The problem of not only efficiently solving waste silt pollution environment, and greatly reduce the consumption to natural rubble, cobble, environment, energy problem caused by avoiding in natural sand stone recovery process, it can be widely used for all kinds of port engineerings, the construction of road engineering, engineering cost is reduced, is had highly application value.
Description
Technical field
It is more particularly to a kind of to prepare environmentally friendly people using ocean waste silt the invention belongs to civil construction field of material technology
The method for making sandstone.
Background technology
The high waste silt of a large amount of moisture content, traditional land can be all produced in the construction and maintenance of coastal area port engineering
The processing methods such as ground hydraulic reclamation, ocean dumping, which exist, takes up an area that many, time-consuming, cost is high and the series of problems such as seriously polluted.Therefore,
Under sustainable development idea, how using rationally environmentally friendly effective manner processing waste silt, for Resources for construction economizing type,
Friendly environment society has important practical significance.
The construction of port engineering needs substantial amounts of sandstone material simultaneously, but sand and stone resources are very in short supply, particularly traditional
Exploit sand and stone not only causes non-renewable natural sand stone resource largely to consume, heavy damage ecological environment, and sandstone is broken, divide
Mass energy can be consumed in solution preocess, there is high pollution, high energy consumption and high CO2The problems such as discharge.
The content of the invention
It is environmentally friendly using the preparation of ocean waste silt there is provided one kind in above-mentioned technology it is an object of the invention to overcome the shortcomings of
The method of arenolite, prepared arenolite is functional, is a kind of good natural sand stone substitute.It is useless using ocean
Mud is abandoned for raw material, suits measures to local conditions to gather materials on the spot, it is with low cost, port engineering construction cost is effectively reduced, while realizing sea
The recycling of foreign waste silt.
The technical scheme that the present invention is improved is as follows：
The method that a kind of utilization ocean waste silt prepares environmentally friendly arenolite, this method comprises the following steps,
（1）Filtering, filtering removes the debris such as bulky grain stone, pasture and water in mud；
（2）Dehydration, is 45% ~ 75% by mud centrifugal dehydration after filtering to moisture content；
（3）Solidification, the mud after dehydration is mixed evenly in the following proportions with curing agent, additive, alkali-activator, shape
Into curing sludge, the mass parts composition of wherein each component is 40 ~ 65 parts of mud, 15 ~ 35 parts of curing agent, 10 ~ 20 parts of additive, alkali
1 ~ 15 part of exciting agent of property；
Curing agent mass parts composition is early-strength Portland cement 15 ~ 35,0 ~ 15 part of quick lime；
Additive mass parts composition for 3 ~ 10 parts of flyash, 1 ~ 5 part of clinker, 1 ~ 5 part of cement slurry, 1 ~ 3 part of slag, desulfurated plaster 1 ~
2 parts；
Alkali-activator quality is grouped into waterglass（Na2SiO3·9H2O）0 ~ 5 part, 0 ~ 5 part of sodium hydroxide, sodium carbonate 0 ~ 5
Part, three's mass parts sum is 1 ~ 15 part；
（4）Shaping, curing sludge is molded by forming machine, then by suitably manually or mechanically method be made it is of uniform size
Cobble shape sand material；
（5）Maintenance, by obtained cobble shape sand material natural curing 7 ~ 10 days.
The effect of each component in the present invention：
Mud.Ocean waste silt makes the raw material of environmentally friendly sandstone for the present invention, and provides certain water environment.
Curing agent.First, hydration reaction, generation hydrated calcium silicate, drated calcium aluminate etc. occur for moisture content in cement and mud
Gum material, makes Muddy Bottoms grogs cemented together；2nd, on the one hand quick lime have compared with strong absorptive, can be in initial reaction stage
Significantly reduce the moisture content of mud；3rd, the substantial amounts of Ca of moisture content reaction generation in the key component CaO and mud in quick lime
(OH)2, it is the active SiO contained in cement and additive2、Al2O3、Fe2O3Suitable alkaline ring is provided Deng occurring hydration reaction
Border.
Additive.The materials such as flyash, clinker, cement slurry, slag, the desulfurated plaster of incorporation are all with volcano ash effect
Solid waste, one side twice laid effectively handled these discarded objects, the work on the other hand contained in these materials
Property SiO2、Al2O3、Fe2O3Deng can equally generate the gum materials such as hydrated calcium silicate, drated calcium aluminate in the basic conditions, bond
Muddy Bottoms grogs.
Exciting agent.Promote SiO in additive2、Al2O3、Fe2O3Disintegrate etc. structure, accelerate additive and curing agent reaction life
Into gum material, while the mineral constituent activity in soil particle can also be excited effectively, accelerate heat evolution velocity.
Beneficial effects of the present invention：
The method that a kind of utilization ocean waste silt that the present invention is provided prepares environmentally friendly arenolite, can enter to discarded ocean mud
Row handles and then particle size suitable sandstone material is made, and it has, and performance is stable, with low cost, advantages of environment protection,
The engineering constructions such as all kinds of port engineerings, road engineering are can be widely used for, partially or completely to substitute natural rubble, cobble, reduction
Engineering cost.On the one hand a series of problems, such as waste silt accumulation is taken up an area, throwing pollutes environment is rationally and effectively solved, it is another
Aspect processing after mud can as a kind of environmentally friendly arenolite material be used for engineering construction, can greatly reduce to natural rubble,
The consumption of cobble so that environment, energy problem caused by being prevented effectively from natural sand stone recovery process, realize sludge waste without
Evilization, the purpose of recycling treatment, with good economic value and social value.
Brief description of the drawings
Fig. 1 is the flow chart of preparation method of the present invention.
Embodiment
Several embodiments of the present invention are described below, present disclosure is not limited to this completely.Fig. 1 shows the present invention
Preparation method flow chart.
Embodiment 1
（1）Filtering, takes the discarded dredging ocean mud in certain harbour, and filtering removes the debris such as bulky grain stone, pasture and water in mud；
（2）Dehydration, is 65% by mud centrifugal dehydration after filtering to moisture content；
（3）Solidification, takes 45 parts of mud, 30 parts of curing agent, 18 parts of additive, 7 parts of alkali-activator after dehydration, is put into stirs together
Mix in machine and be mixed evenly, form curing sludge, which part constituent mass part composition is as follows：
Curing agent, 52.5R grades of 20 parts of early-strength Portland cements, 10 parts of quick limes；
Additive, 10 parts of flyash, 4 parts of clinker, 2 parts of cement slurry, 1 part of slag, 1 part of desulfurated plaster；
Alkali-activator, 5 parts of waterglass, 1 part of sodium hydroxide, 1 part of sodium carbonate；
（4）Shaping, by curing sludge in piston extruded type forming machine into cylindric, pass through suitably manually or mechanically method shape
Into cobble shape sand material of uniform size；
（5）Maintenance, by obtained cobble shape sand material natural curing 8 days.
Environmentally friendly arenolite obtained by embodiment 1 measures compression strength for 21MPa after being dried at 105 DEG C, crush values
14.3%, its performance indications preferably meets JGJ52-2006《Regular concrete sand, stone quality and test method standard》Related rule
It is fixed, and do sandstone material performance made from curing agent better than single cement under the same terms（Compression strength is 16MPa, crush values
17%）.
Embodiment 2
（1）Filtering, takes the discarded dredging ocean mud in certain harbour, and filtering removes the debris such as bulky grain stone, pasture and water in mud；
（2）Dehydration, is 52% by mud centrifugal dehydration after filtering to moisture content；
（3）Solidification, takes 52 parts of mud, 25 parts of curing agent, 15 parts of additive, 8 parts of alkali-activator after dehydration, is put into stirs together
Mix in machine and be mixed evenly, form curing sludge, which part constituent mass part composition is as follows：
Curing agent, 52.5R grades of 15 parts of early-strength Portland cements, 10 parts of quick limes；
Additive, 9 parts of flyash, 3 parts of clinker, 1 part of cement slurry, 1 part of slag, 1 part of desulfurated plaster；
Alkali-activator, 5 parts of waterglass, 2 parts of sodium hydroxide, 1 part of sodium carbonate；
（4）Shaping, by curing sludge balling-up in extruded type forming machine, forms cobble shape sand material of uniform size；
（5）Maintenance, by obtained cobble shape sand material natural curing 9 days.
Environmentally friendly arenolite obtained by embodiment 2 measures compression strength for 18MPa after being dried at 105 DEG C, crush values
15%, its performance indications preferably meets JGJ52-2006《Regular concrete sand, stone quality and test method standard》Related rule
It is fixed, and do sandstone material performance made from curing agent better than single cement under the same terms（Compression strength is 14MPa, crush values
18%）.
Embodiment 3
（1）Filtering, takes the discarded dredging ocean mud in certain harbour, and filtering removes the debris such as bulky grain stone, pasture and water in mud；
（2）Dehydration, is 58% by mud centrifugal dehydration after filtering to moisture content；
（3）Solidification, takes 58 parts of mud, 30 parts of curing agent, 10.4 parts of additive, 1.6 parts of alkali-activator after dehydration, puts together
Enter stirrer for mixing to stir, form curing sludge, which part constituent mass is grouped into as follows：
Curing agent, 52.5R grades of 15 parts of early-strength Portland cements, 15 parts of quick limes；
Additive, 5 parts of flyash, 1 part of clinker, 1 part of cement slurry, 2 parts of slag, 1.4 parts of desulfurated plaster；
Alkali-activator, 1.6 parts of waterglass；
（4）Shaping, by curing sludge in piston extruded type forming machine into cylindric, pass through suitably manually or mechanically method shape
Into cobble shape sand material of uniform size；
（5）Maintenance, by obtained cobble shape sand material natural curing 7 days.
Environmentally friendly arenolite obtained by embodiment 3 measures compression strength value for 27.3MPa after being dried at 105 DEG C, crushing
Value 13.9%, its performance indications preferably meet JGJ52-2006《Regular concrete sand, stone quality and test method standard》Correlation
Regulation, and do sandstone material performance made from curing agent better than single cement under the same terms（Compression strength is 20MPa, crushing
Value 17%）.
Embodiment 4
（1）Filtering, takes the discarded dredging ocean mud in certain harbour, and filtering removes the debris such as bulky grain stone, pasture and water in mud；
（2）Dehydration, is 45% by mud centrifugal dehydration after filtering to moisture content；
（3）Solidification, takes 40 parts of mud, 15 parts of curing agent, 10 parts of additive, 1 part of alkali-activator after dehydration, is put into stirs together
Mix in machine and be mixed evenly, form curing sludge, which part constituent mass part composition is as follows：
Curing agent, 52.5R grades of 14 parts of early-strength Portland cements, 1 part of quick limes；
Additive, 3 parts of flyash, 2 parts of clinker, 2 parts of cement slurry, 1 part of slag, 2 parts of desulfurated plaster；
Alkali-activator, 1 part of sodium hydroxide；
（4）Shaping, by curing sludge in piston extruded type forming machine into cylindric, pass through suitably manually or mechanically method shape
Into cobble shape sand material of uniform size；
（5）Maintenance, by obtained cobble shape sand material natural curing 7 days.
Environmentally friendly arenolite obtained by embodiment 4 measures compression strength value for 15.6MPa after being dried at 105 DEG C, crushing
Value 16%, its performance indications preferably meet JGJ52-2006《Regular concrete sand, stone quality and test method standard》Related rule
It is fixed, and do sandstone material performance made from curing agent better than single cement under the same terms（Compression strength is 10MPa, crush values
21%）.
Embodiment 5
（1）Filtering, takes the discarded dredging ocean mud in certain harbour, and filtering removes the debris such as bulky grain stone, pasture and water in mud；
（2）Dehydration, is 75% by mud centrifugal dehydration after filtering to moisture content；
（3）Solidification, takes 65 parts of mud, 35 parts of curing agent, 20 parts of additive, 15 parts of alkali-activator after dehydration, is put into together
Stirrer for mixing stirs, and forms curing sludge, which part constituent mass is grouped into as follows：
Curing agent, 52.5R grades of 23 parts of early-strength Portland cements, 12 parts of quick limes；
Additive, 5 parts of flyash, 5 parts of clinker, 5 parts of cement slurry, 3 parts of slag, 2 parts of desulfurated plaster；
Alkali-activator, 5 parts of waterglass, 5 parts of sodium hydroxide, 5 parts of sodium carbonate；
（4）Shaping, by curing sludge in piston extruded type forming machine into cylindric, pass through suitably manually or mechanically method shape
Into cobble shape sand material of uniform size；
（5）Maintenance, by obtained cobble shape sand material natural curing 10 days.
Environmentally friendly arenolite obtained by embodiment 5 measures compression strength value for 32MPa after being dried at 105 DEG C, crush values
12%, its performance indications preferably meets JGJ52-2006《Regular concrete sand, stone quality and test method standard》Related rule
It is fixed, and do sandstone material performance made from curing agent better than single cement under the same terms（Compression strength is 25MPa, crush values
14.3%）.
Claims (5)
1. the method that a kind of utilization ocean waste silt prepares environmentally friendly arenolite, it is characterised in that comprise the following steps：
(1) filter, filtering removes the debris such as bulky grain stone, pasture and water in mud；
(2) it is dehydrated, is 45%~75% by mud centrifugal dehydration after filtering to moisture content；
(3) solidify, stirred after the mud after dehydration is mixed in the following proportions with curing agent, additive, alkali-activator,
Curing sludge is formed, each component mass parts are
(4) it is molded, curing sludge is molded in by forming machine, then cobble of uniform size is made by manually or mechanically method
Shape sand material；
(5) conserve, by obtained cobble shape sand material natural curing 7~10 days.
2. the method that utilization ocean according to claim 1 waste silt prepares environmentally friendly arenolite, it is characterised in that institute
It is the discarded dredging ocean mud in harbour to state mud.
3. the method that utilization ocean according to claim 1 waste silt prepares environmentally friendly arenolite, it is characterised in that institute
State curing agent mass parts composition：15~35 parts of early-strength Portland cement, 0~15 part of quick lime.
4. the method that utilization ocean according to claim 1 waste silt prepares environmentally friendly arenolite, it is characterised in that institute
State additive mass parts composition：3~10 parts of flyash, 1~5 part of clinker, 1~5 part of cement slurry, 1~3 part of slag, desulfurated plaster 1
~2 parts.
5. the method that utilization ocean according to claim 1 waste silt prepares environmentally friendly arenolite, it is characterised in that institute
State alkali-activator mass parts composition：Waterglass (Na2SiO3·9H2O) 0~5 part, 0~5 part of sodium hydroxide, sodium carbonate 0~5
Part, three's mass parts sum is 1~15 part.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108249713A (en) * | 2017-12-26 | 2018-07-06 | 三川德青科技有限公司 | A kind of river and lake silt resource utilization method |
| CN108516737A (en) * | 2018-03-21 | 2018-09-11 | 山东大学 | The artificial marine habitat and preparation method thereof that sea-bottom deposit reuse of dredging utilizes can be achieved |
| CN109264959A (en) * | 2018-11-26 | 2019-01-25 | 张书志 | A kind of ocean mud recycling and processing device |
| CN109264958A (en) * | 2018-11-26 | 2019-01-25 | 张书志 | A kind of ocean sludge dewatering and solidifying device |
| CN110316987A (en) * | 2019-07-08 | 2019-10-11 | 山西大学 | A kind of unburned natural curing slow-release manufactured aggregate and preparation method thereof |
| CN110467368A (en) * | 2019-09-11 | 2019-11-19 | 上海海顾新材料科技有限公司 | A kind of activity excitant and preparation method thereof for inorganic solid waste building materials |
| CN111039629A (en) * | 2019-10-08 | 2020-04-21 | 水利部交通运输部国家能源局南京水利科学研究院 | Method for preparing artificial stone by using dredged sludge and rotary furnace bottom ash of iron and steel plant |
| CN112408733A (en) * | 2020-11-24 | 2021-02-26 | 肇庆市武大环境技术研究院 | Sludge solidification method |
| CN114591013A (en) * | 2022-03-09 | 2022-06-07 | 南京理工大学 | Artificial aggregate of river sludge and preparation method thereof |
| CN115872710A (en) * | 2022-12-23 | 2023-03-31 | 中建海龙科技有限公司 | High-performance inorganic artificial stone for silt and preparation method thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108249713A (en) * | 2017-12-26 | 2018-07-06 | 三川德青科技有限公司 | A kind of river and lake silt resource utilization method |
| CN108516737A (en) * | 2018-03-21 | 2018-09-11 | 山东大学 | The artificial marine habitat and preparation method thereof that sea-bottom deposit reuse of dredging utilizes can be achieved |
| CN108516737B (en) * | 2018-03-21 | 2019-09-03 | 山东大学 | The artificial marine habitat and preparation method thereof that sea-bottom deposit reuse of dredging utilizes can be achieved |
| CN109264959A (en) * | 2018-11-26 | 2019-01-25 | 张书志 | A kind of ocean mud recycling and processing device |
| CN109264958A (en) * | 2018-11-26 | 2019-01-25 | 张书志 | A kind of ocean sludge dewatering and solidifying device |
| CN110316987B (en) * | 2019-07-08 | 2021-09-28 | 山西大学 | Baking-free natural curing slow-release artificial aggregate and preparation method thereof |
| CN110316987A (en) * | 2019-07-08 | 2019-10-11 | 山西大学 | A kind of unburned natural curing slow-release manufactured aggregate and preparation method thereof |
| CN110467368A (en) * | 2019-09-11 | 2019-11-19 | 上海海顾新材料科技有限公司 | A kind of activity excitant and preparation method thereof for inorganic solid waste building materials |
| CN110467368B (en) * | 2019-09-11 | 2021-11-26 | 上海海顾新材料科技有限公司 | Active excitant for inorganic solid waste building material and preparation method thereof |
| CN111039629B (en) * | 2019-10-08 | 2021-08-17 | 水利部交通运输部国家能源局南京水利科学研究院 | Method for preparing artificial stone by using dredged sludge and rotary furnace bottom ash of iron and steel plant |
| CN111039629A (en) * | 2019-10-08 | 2020-04-21 | 水利部交通运输部国家能源局南京水利科学研究院 | Method for preparing artificial stone by using dredged sludge and rotary furnace bottom ash of iron and steel plant |
| CN112408733A (en) * | 2020-11-24 | 2021-02-26 | 肇庆市武大环境技术研究院 | Sludge solidification method |
| CN114591013A (en) * | 2022-03-09 | 2022-06-07 | 南京理工大学 | Artificial aggregate of river sludge and preparation method thereof |
| CN114591013B (en) * | 2022-03-09 | 2022-09-16 | 南京理工大学 | Artificial aggregate of river sludge and preparation method thereof |
| CN115872710A (en) * | 2022-12-23 | 2023-03-31 | 中建海龙科技有限公司 | High-performance inorganic artificial stone for silt and preparation method thereof |
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