CN109503073A - A kind of high-moisture percentage riverway sludge rapid curing curing agent and preparation method thereof - Google Patents
A kind of high-moisture percentage riverway sludge rapid curing curing agent and preparation method thereof Download PDFInfo
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- CN109503073A CN109503073A CN201811482175.5A CN201811482175A CN109503073A CN 109503073 A CN109503073 A CN 109503073A CN 201811482175 A CN201811482175 A CN 201811482175A CN 109503073 A CN109503073 A CN 109503073A
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- riverway sludge
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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
- C04B2111/00732—Uses not provided for elsewhere in C04B2111/00 for soil stabilisation
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- 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)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of high-moisture percentage riverway sludge rapid curing curing agent and preparation method thereof, it is compounded by curing agent, water absorbing agent, dispersing agent, exciting agent and plasticizer, each component parts by weight are as follows: 45-50 parts of steel-making slag powder, 8-10 parts of cement, 15-20 parts of lime, 5-8 parts of gypsum, 3-4 parts of rubber powder, 2-3 parts of polyglycerol, 3-5 parts of water absorbing agent, 1-2 parts of dispersing agent, 3-5 parts of exciting agent, 2-4 parts of plasticizer.The curing agent main component that the present invention uses is steel-making slag powder, cement, lime and gypsum, and rubber powder, polyglycerol, water absorbing agent, dispersing agent, exciting agent and plasticizer are added to improve curing agent to the curing performance of high-moisture percentage riverway sludge, solve the problems, such as that High water cut riverway sludge is difficult to solidify, traditional precipitation method such as opposite filters pressing, eliminate dewatering process of the mud moisture content from 250% to 100%, it improves precipitation efficiency and reduces precipitation cost, be with a wide range of applications.
Description
Technical field
The present invention relates to curing agent technology fields, are particularly suitable for the solidification of high-moisture percentage riverway sludge, specially a kind of
High-moisture percentage riverway sludge rapid curing curing agent and preparation method thereof.
Background technique
With the quickening of China's process of industrialization, water pollution problems becomes more serious, and produces after handling sewage
Raw river sludge yield multiplication.For example, the dredging amount in the main river in Tianjin City up to 6,500,000 m3, the silt of Wuhan East Lake lakebed
Mud total amount reaches 34,800,000 m3.Riverway sludge has the characteristics that moisture content high, stream plastic state and intensity are extremely low, and often containing ammonia nitrogen,
The pollutants such as heavy metal.The method of disposal of traditional riverway sludge be mainly heap shine, the modes such as land hydraulic reclamation and filters pressing, at these
Reason mode has some disadvantages: low efficiency, time-consuming, pollution environment is big.Therefore a large amount of riverway sludge has become China's river and lake and controls
The conditionality factor of reason and ocean engineering development.Relatively traditional riverway sludge processing method, the chemosetting facture scope of application
Extensively, low cost, construction technology are convenient, are a kind of processing methods that comparison is suitble to China's national situation.However existing sludge solidification is main
It is to use cement, lime or the composite curing agent based on the two, it is ineffective when handling high-moisture percentage mud.In recent years
Published high-moisture percentage sludge solidification related patents have: Chinese patent CN104086070A discloses high-moisture percentage sludge solidification
Agent mixes cement 12-15 parts by weight, flyash 9-12 parts by weight, quick lime 4-5 parts by weight, bubble in the mud of high-moisture percentage
Flower alkali 1-2 parts by weight, are capable of handling moisture content in the mud of 80%-100%.Chinese patent CN105541254A discloses one
The environment-friendly curing agent of kind processing high-moisture percentage mud, by flyash 40%-50%, clinker 35%-45%, gypsum 5%-
8%, slag 5%-15%, swelling agent 0.5%-1%, water-reducing agent 1%-3%, flocculant 0.4%-1% etc. are formed, and can be handled and be contained
The mud of water rate 60%-120%, can satisfy engineering demand.As can be seen that existing patent mainly handles moisture content 100%
The mud of left and right, still has deficiency to the processing of high-moisture percentage mud.The present invention mainly handles moisture content within 250%
High-moisture percentage mud can quickly make mud be transformed into soft plasticity from stream modeling shape, increase bicycle freight volume, be readily transported.
Summary of the invention
To solve the above problems, the invention discloses a kind of high-moisture percentage riverway sludge rapid curing curing agent and its systems
Preparation Method, the present invention mainly handle high-moisture percentage mud of the moisture content within 250%, can quickly make mud from stream modeling shape transformation
At soft plasticity, increases bicycle freight volume, be readily transported.
In order to reach the goals above, the invention provides the following technical scheme:
A kind of high-moisture percentage riverway sludge rapid curing curing agent, including steel-making slag powder, cement, lime, gypsum, rubber
Powder, polyglycerol, water absorbing agent, dispersing agent, exciting agent and plasticizer compound；The parts by weight of each component are as follows: steel-making slag powder 45-
50 parts, 8-10 parts of cement, 15-20 parts of lime, 5-8 parts of gypsum, 3-4 parts of rubber powder, polyglycerol 2-3,3-5 parts of water absorbing agent, point
1-2 parts of powder, 3-5 parts of exciting agent, 2-4 parts of plasticizer.
Preferably, the steel-making slag powder is factory's waste residue powder, and factory's steel scrap grinding gained, the steel-making slag powder partial size
Less than 80 μm.Using factory's waste residue, raw material is saved, and effectively recycles plant wastes.
Preferably, the cement is 42.5 portland cements.
Preferably, the lime is quick lime.
Preferably, the gypsum is natural dihydrate gypsum.
Preferably, the rubber powder partial size is 0.45mm rubber powder below,
Preferably, the polyglycerol is polyglycerol.
Preferably, the water absorbing agent is one or both of polyacrylamide and polymethylacrylic acid hydrogen.It uses
One or both of polyacrylamide and polymethylacrylic acid hydrogen are used as water absorbing agent, and the Free water of high-moisture percentage mud can be made to contain
Amount quickly reduces.
Preferably, the water absorbing agent Water absorption is at 100-500 times, partial size is less than 20 μm.
Preferably, the dispersing agent is one or both of polyethylene wax -1500, polyethylene wax -2000.It uses
One or both of polyethylene wax -1500 and polyethylene wax -2000 are used as dispersing agent, and water absorbing agent is made preferably to be dispersed in mud
In particle, the higher water absorbing properties for playing water absorbing agent.
Preferably, the exciting agent is one or both of sodium sulphate, sodium aluminate.
Preferably, the plasticizer is dioctyl phthalate.Use dioctyl phthalate as plasticising
Agent increases the plasticity of solidified earth.
The present invention also provides the preparation methods of high-moisture percentage riverway sludge rapid curing curing agent, and preparation step is such as
Under: all raw material component ratio by weight is measured, pours into mixing plant and stirs, mixing speed 20-30r/min is stirred
Time 120s is mixed, high-moisture percentage riverway sludge rapid curing curing agent is prepared.
The present invention has the advantage that
(1) present invention is using polyacrylamide and polymethylacrylic acid hydrogen as the absorbing component in curing agent, because of its water suction
Multiple is big (200-500 times).The curing agent prepared can absorb the moisture that moisture content is up in 250% mud, provide one
The method that kind quickly handles high-moisture percentage mud.
(2) the processing high-moisture percentage mud that the present invention uses is chemical method, the precipitation side such as relatively traditional filters pressing, stacking
Method eliminates dewatering process of the mud moisture content from 250% to 100%, improves precipitation efficiency and reduces precipitation cost.
(3) present invention is using sodium aluminate as the exciting agent of curing agent, in conjunction with polyglycerol, water absorbing agent and dispersing agent,
The solidified earth (7d unconfined compressive strength reaches 180kPa) with some strength can also be obtained while reducing mud moisture content,
The solidified earth of acquisition can be used for treatment of soft foundation and equal fields of building the road, and achieve the purpose that reuse of dredging utilizes.
(4) present invention can make the mud after solidifying quickly have plasticity using dioctyl phthalate as plasticizer
(in 30min), is readily transported, and improves the efficiency to high-moisture percentage sludge treatment.
Specific embodiment
With reference to embodiment, the present invention is furture elucidated, it should be understood that following specific embodiments are only used for
It is bright the present invention rather than limit the scope of the invention.
Curing agent of the invention mainly includes consisting of: 45-50 parts of steel-making slag powder, 8-10 parts of cement, and 15-20 parts of lime,
5-8 parts of gypsum, 3-4 parts of rubber powder, 2-3 parts of polyglycerol, 3-5 parts of water absorbing agent, 1-2 parts of dispersing agent, 3-5 parts of exciting agent, plasticising
2-4 parts of agent.Preparation step is as follows: all raw material component ratio by weight measured, pours into mixing plant and stirs, stirring speed
Degree is 20-30r/min, mixing time 120s, prepares high-moisture percentage riverway sludge rapid curing curing agent.It is specific to implement
Under such as.
Embodiment one:
Mud is derived from Jiangsu river, moisture content 240%-250%.Curing agent component be 50 parts of steel-making slag powder, 10 parts of cement,
20 parts of lime, 8 parts of gypsum, 4 parts of rubber powder, 3 parts of polyglycerol, 5 parts of polymethylacrylic acid hydrogen, 2 parts of polyethylene wax -2000,
5 parts of sodium aluminate, 4 parts of dioctyl phthalate.It can be changed by high-moisture percentage stream modeling shape after mud is cured, in 30 minutes soft
Shape is moulded, measuring its liquidity index IL is 0.75, and the unconfined compressive strength of solidified earth is respectively after standard curing 7d and 28d
The mechanical property of 183kPa and 294kPa, mud are improved well.
Embodiment two:
Mud is derived from Jiangsu river, moisture content 240%-250%.Curing agent group become 45 parts of steel-making slag powder, 8 parts of cement,
20 parts of lime, 8 parts of gypsum, rubber powder 4, polyglycerol 2,3 parts of polymethylacrylic acid hydrogen, 1 part of polyethylene wax -2000, sodium aluminate
3 parts, 2 parts of dioctyl phthalate.After mud is cured, shape can be moulded by high-moisture percentage stream in 30 minutes and be changed into soft modeling shape,
Measure liquidity index IL be 0.95, after standard curing 7d and 28d the unconfined compressive strength of solidified earth be respectively 105kPa and
The mechanical property of 201kPa, mud are improved well.
Embodiment three:
Mud is derived from Jiangsu river, moisture content 240%-250%.Curing agent group become 50 parts of steel-making slag powder, 10 parts of cement,
15 parts of lime, 8 parts of gypsum, rubber powder 3, polyglycerol 3,3 parts of polymethylacrylic acid hydrogen, 1 part of polyethylene wax -2000, sodium aluminate
5 parts, 2 parts of dioctyl phthalate.After mud is cured, shape can be moulded by high-moisture percentage stream in 30 minutes and be changed into soft modeling shape,
Measure liquidity index IL be 0.95, after standard curing 7d and 28d the unconfined compressive strength of solidified earth be respectively 132kPa and
The mechanical property of 225kPa, mud are improved well.
Example IV:
Mud is derived from Jiangsu river, moisture content 240%-250%.Curing agent group become 45 parts of steel-making slag powder, 10 parts of cement,
15 parts of lime, 8 parts of gypsum, 4 parts of rubber powder, 3 parts of polyglycerol, 5 parts of polymethylacrylic acid hydrogen, 2 parts of polyethylene wax -2000,
3 parts of sodium aluminate, 4 parts of dioctyl phthalate.It can be changed by high-moisture percentage stream modeling shape after mud is cured, in 30 minutes soft
Shape is moulded, measuring liquidity index IL is 0.75, and the unconfined compressive strength of solidified earth is respectively after standard curing 7d and 28d
The mechanical property of 171kPa and 282kPa, mud are improved well.
Embodiment five:
Mud is derived from Jiangsu river, moisture content 240%-250%.Curing agent group become 50 parts of steel-making slag powder, 8 parts of cement,
20 parts of lime, 8 parts of gypsum, 3 parts of rubber powder, 2 parts of polyglycerol, 5 parts of polymethylacrylic acid hydrogen, 2 parts of polyethylene wax -2000,
5 parts of sodium aluminate, 2 parts of dioctyl phthalate.It can be changed by high-moisture percentage stream modeling shape after mud is cured, in 30 minutes soft
Shape is moulded, measuring liquidity index IL is 0.9, and the unconfined compressive strength of solidified earth is respectively after standard curing 7d and 28d
The mechanical property of 179kPa and 288kPa, mud are improved well.
Embodiment six:
Mud is derived from Jiangsu river, moisture content 240%-250%.Curing agent group become 50 parts of steel-making slag powder, 8 parts of cement,
20 parts of lime, 8 parts of gypsum, 4 parts of rubber powder, 2 parts of polyglycerol, 5 parts of polymethylacrylic acid hydrogen, 1 part of polyethylene wax -2000,
5 parts of sodium aluminate, 4 parts of dioctyl phthalate.It can be changed by high-moisture percentage stream modeling shape after mud is cured, in 30 minutes soft
Shape is moulded, measuring liquidity index IL is 0.79, and the unconfined compressive strength of solidified earth is respectively after standard curing 7d and 28d
The mechanical property of 170kPa and 275kPa, mud are improved well.
Comparative example one:
Mud is derived from Jiangsu river, moisture content 240%-250%.Solidification group become 45 parts of steel-making slag powder, 10 parts of cement, stone
20 parts, 8 parts of gypsum, 5 parts of polymethylacrylic acid hydrogen, 2 parts of polyethylene wax -2000,5 parts of sodium aluminate of ash.After mud is cured,
Soft modeling shape is not become in 30 minutes, measuring liquidity index IL is 1.8, the solidified earth without lateral confinement after standard curing 7d and 28d
Compression strength is respectively 175kPa and 285kPa, and the mechanical property of mud is improved well.
Comparative example two:
Mud is derived from Jiangsu river, moisture content 240%-250%.Curing agent group become 45 parts of steel-making slag powder, 10 parts of cement,
15 parts of lime, 8 parts of gypsum, 2 parts of polyglycerol, 2 parts of polyethylene wax -2000,5 parts of sodium aluminate, dioctyl phthalate 4
Part.After mud is cured, soft modeling shape is not become in 30 minutes, measuring liquidity index IL is 1.5, in standard curing 7d and 28d
The unconfined compressive strength of solidified earth is respectively 182kPa and 293kPa afterwards, and the mechanical property of mud is improved well.
Comparative example three:
Mud is derived from Jiangsu river, moisture content 240%-250%.Curing agent group become 50 parts of steel-making slag powder, 10 parts of cement,
15 parts of lime, 8 parts of gypsum, 3 parts of rubber powder, 2 parts of polyethylene wax -2000,4 parts of dioctyl phthalate.Mud is cured
Afterwards, soft modeling shape is not become in 30 minutes, measuring liquidity index IL is 1.2, the solidified earth without side after standard curing 7d and 28d
Limiting compression strength is respectively 153kPa and 245kPa, and the mechanical property of mud is improved well.
The technical means disclosed in the embodiments of the present invention is not limited only to technological means disclosed in above embodiment, further includes
Technical solution consisting of any combination of the above technical features.It should be pointed out that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of high-moisture percentage riverway sludge rapid curing curing agent, it is characterised in that: including steel-making slag powder, cement, lime, stone
Cream, rubber powder, polyglycerol, water absorbing agent, dispersing agent, exciting agent, plasticizer；The parts by weight of each component are as follows: steel-making slag powder 45-50
Part, 8-10 parts of cement, 15-20 parts of lime, 5-8 parts of gypsum, 3-4 parts of rubber powder, polyglycerol 2-3,3-5 parts of water absorbing agent, dispersion
1-2 parts of agent, 3-5 parts of exciting agent, 2-4 parts of plasticizer.
2. a kind of high-moisture percentage riverway sludge rapid curing curing agent as described in claim 1, it is characterised in that: the steel
Ground-slag is factory's waste residue powder, and factory's steel scrap grinding gained, the steel-making slag powder partial size is less than 80 μm.
3. a kind of high-moisture percentage riverway sludge rapid curing curing agent as described in claim 1, it is characterised in that: the water
Mud is 42.5 portland cements, and the lime is quick lime, and the gypsum is natural dihydrate gypsum.
4. a kind of high-moisture percentage riverway sludge rapid curing curing agent as described in claim 1, it is characterised in that: the rubber
Rubber powder is partial size in 0.45mm rubber powder below, and the polyglycerol is polyglycerol.
5. a kind of high-moisture percentage riverway sludge rapid curing curing agent as described in claim 1, it is characterised in that: the suction
Aqua is one or both of polyacrylamide and polymethylacrylic acid hydrogen.
6. a kind of high-moisture percentage riverway sludge rapid curing curing agent as claimed in claim 1 or 5, it is characterised in that: institute
Water absorbing agent Water absorption is stated at 100-500 times, partial size is less than 20 μm.
7. a kind of high-moisture percentage riverway sludge rapid curing curing agent as described in claim 1, it is characterised in that: described point
Powder is one or both of polyethylene wax -1500, polyethylene wax -2000.
8. a kind of high-moisture percentage riverway sludge rapid curing curing agent as described in claim 1, it is characterised in that: described to swash
Hair agent is one or both of sodium sulphate, sodium aluminate.
9. a kind of high-moisture percentage riverway sludge rapid curing curing agent as described in claim 1, it is characterised in that: the increasing
Modeling agent is dioctyl phthalate.
10. a kind of preparation method of high-moisture percentage riverway sludge rapid curing curing agent as claimed in claims 1-9, special
Sign is: preparation step is as follows, and all raw material component ratio by weight is measured, pours into mixing plant and stirs, stirring speed
Degree is 20-30r/min, mixing time 120s, prepares high-moisture percentage riverway sludge rapid curing curing agent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811482175.5A CN109503073A (en) | 2018-12-05 | 2018-12-05 | A kind of high-moisture percentage riverway sludge rapid curing curing agent and preparation method thereof |
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| CN201811482175.5A CN109503073A (en) | 2018-12-05 | 2018-12-05 | A kind of high-moisture percentage riverway sludge rapid curing curing agent and preparation method thereof |
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| CN109503073A true CN109503073A (en) | 2019-03-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753346A (en) * | 2022-05-05 | 2022-07-15 | 武汉工程大学 | Method for preparing premixed fluid solidified soil by utilizing in-situ sludge cohesive soil |
| CN115724629A (en) * | 2022-11-17 | 2023-03-03 | 上海申环环境工程有限公司 | Curing agent stabilized soil for mucky muck and preparation method thereof |
| CN115745503A (en) * | 2022-12-02 | 2023-03-07 | 江西省建材科研设计院有限公司 | High-water-content sludge curing agent based on industrial waste residues after acid treatment and preparation method and application thereof |
-
2018
- 2018-12-05 CN CN201811482175.5A patent/CN109503073A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753346A (en) * | 2022-05-05 | 2022-07-15 | 武汉工程大学 | Method for preparing premixed fluid solidified soil by utilizing in-situ sludge cohesive soil |
| CN114753346B (en) * | 2022-05-05 | 2024-01-23 | 武汉工程大学 | Method for preparing ready-mixed fluid solidified soil by using in-situ muddy clay |
| CN115724629A (en) * | 2022-11-17 | 2023-03-03 | 上海申环环境工程有限公司 | Curing agent stabilized soil for mucky muck and preparation method thereof |
| CN115724629B (en) * | 2022-11-17 | 2023-10-20 | 上海申环环境工程有限公司 | Curing agent stabilized soil for silt residue soil and preparation method thereof |
| CN115745503A (en) * | 2022-12-02 | 2023-03-07 | 江西省建材科研设计院有限公司 | High-water-content sludge curing agent based on industrial waste residues after acid treatment and preparation method and application thereof |
| CN115745503B (en) * | 2022-12-02 | 2023-11-14 | 江西省建材科研设计院有限公司 | High-water-content sludge curing agent based on acid-treated industrial waste residues, and preparation method and application thereof |
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