CN101220590A - Sullage solidifying method - Google Patents
Sullage solidifying method Download PDFInfo
- Publication number
- CN101220590A CN101220590A CNA2008100193390A CN200810019339A CN101220590A CN 101220590 A CN101220590 A CN 101220590A CN A2008100193390 A CNA2008100193390 A CN A2008100193390A CN 200810019339 A CN200810019339 A CN 200810019339A CN 101220590 A CN101220590 A CN 101220590A
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- Prior art keywords
- mud
- curing compound
- cement
- sludge
- curing agent
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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
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
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- 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)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
A sludge solidification method is a method for carrying out solidification treatment to the sludge produced in water conservancy projects and civil engineering. The method is that: a. the liquid water content, the clay content and organic content of dredging sludge are tested. b. curing agent is prepared: the curing agent mainly contains cement and calcium oxide which play the function of solidification; wherein, the weight proportion is between 1 : 1 to 4 : 1; waste gypsum is used as water reducing agent which occupies 1 to 8 percent of the sum of cement and calcium oxide in proportion; mealy sand or pulverized fuel ash are used as concrete aggregate which occupies 3 to 5 percent of the sum of the cement and calcium oxide in proportion; c. the curing agent-mixing ratio which is usually controlled from 5 to 20 percent is determined; sampling respectively is carried out, setting time is tested and the unconfined compressive strength which maintains 7, 14 and 28 days is tested by sampling, and the curing agent-mixing ratio finally is determined according to optimal performance price ratio; d. the sludge is carried out curing and constructing in site; mechanical devices are used for stirring the curing agent and the sludge rapidly and evenly, thereby leading the solidification to be rapid and full.
Description
Technical field
The present invention is that a kind of embankment that is used for highway construction fills the sullage solidifying method with soil, belongs to the technical field that the mud that produces in hydraulic engineering and the civil engineering is cured processing.
Background technology
In expressway construction, usually need to take over for use a large amount of farmlands and carry out embankment with tonerde and fill, this and a pair of contradiction of land resources formation in short supply.Water conservancy waterway dredging simultaneously goes out a large amount of mud need be taken over large stretch of vacant lot for use and stack, and the mud of training of river channel is very poor because of its physico mechanical characteristic, can't be directly used in other purpose, long-term appropriation of land.
In speedway, the construction of one-level Class II highway, need to use the filling material of a large amount of clays as embankment, usually need a lot of farmland of requisition, very in short supply in economically developed eastern region land resources, this construction mode will be subjected to certain restriction or restriction undoubtedly.In addition, the eastern region intensive in the network of waterways is because of river channel sedimentation, appear on the stage in the riverbed, the navigation ability is affected, and usually needs dredged channel, and mud a large amount of after the dredging is very poor because of physico mechanical characteristic, can only discard, and need look for large-area vacant lot to stack, and so both occupied the farmland, again environment is had a negative impact.If can make mud obtain reasonable use, will be how sharp a merit is, so both solved the difficult problem that engineering construction is deposited with soil and mud, saved a large amount of soils simultaneously again.
Summary of the invention
Technical problem: the purpose of this invention is to provide a kind of sullage solidifying method, the mud (as dredging silt or blowing-filling sludge) of high-moisture is solidified fast, clay particle in curing compound and the mud carries out chemical reaction, make the sclerosis of soil particle skeleton form new cage construction, improve the structural strength of soil, make it to be directly used in engineering construction with soil, so both can reduce the area that engineering earth is taken over the land for use, can exempt dredging silt again and deposit floor space.
Technical scheme: for realizing the many sharp technological break-throughs of this merit, sullage solidifying method of the present invention, the a certain proportion of this curing compound of admixture in mud, mud is solidified fast, clay mineral grain in curing compound and the mud carries out chemical reaction and forms a kind of sclerosis crystalline solid, improved the intensity of cage construction, made mud obtain solidifying, and can be directly used in engineering construction.This method is specially:
Water content, clay component and the organic content of a, mensuration dredging silt,
B, preparation curing compound: the main component of curing compound has comprised the cement and the quicklime of solidification, the part by weight of cement and lime is between 1: 1～4: 1, adding water reducing agent, mainly is waste gypsum, and the waste gypsum ratio is generally 1～8% of cement and lime weight sum; Aggregate flour sand or flyash, its content are 1～5% of cement and lime weight sum;
C, determine the ratio that mixes of curing compound: the mixing of curing compound than generally being controlled at 5～20%, promptly in mud, mix curing compound 1. 5% respectively, 2. 8%, 3. 10%, 4. 12%, 5. 15%, 6. 18%, 7. 20%, carry out sample preparation respectively, measure setting time, the unconfined compression strength of maintenance 7 days, 14 days and 28 days is measured in sample preparation, finally determines the ratio that mixes of curing compound by best price/performance ratio;
D, scene are cured construction to mud: with plant equipment curing compound and mud are stirred, fully solidify fast.
Beneficial effect: the soil is non-renewable resource, and the most dirt that adopt of roadbed fill in the expressway construction, and this needs a large amount of high-quality Tu Yuan, and normally requisition is ploughed, and this runs counter to the state basic policy of protecting farmland undoubtedly.A kind of sludge curing agent of patented invention of the present invention, this curing compound can make the sludge solidification of training of river channel, improves the intensity of mud, and the mud after the curing can be used as engineering construction soil, fill with soil as Expressway Embankment, or the engineering backfill is with native.So both solved the used Tu Yuan of engineering construction, and made training of river channel mud obtain regeneration again, the surrounding enviroment of streamflow obtain beautifying neatly, have tangible economic benefit and social benefit.
The specific embodiment
Sullage solidifying method of the present invention can make mud solidify fast, and its embankment that is used for highway construction is filled with soil.This technology had both solved as expressway works construction soil, can make mud realize recycling simultaneously again, protected farmland better, had good sustainable development characteristics.Take turns one that training of river channel is an important content in the environmental renovation, riverbed, the river course navigation ability drop of appearing on the stage in addition, training of river channel is a unique selection, however a large amount of mud in dredging back must be sought vacant lot and stacks, so both cause environment pollution, taken a large amount of soils again.Embankment fills and need to use a certain proportion of lime of a large amount of clay+add to mix to carry out layered rolling in the expressway construction, and satisfies certain compacting requirement.Also to widen at leisure be 6 tracks or 8 tracks in 4 tracks in period earlier along with rapid economy development, Tu Fang demand will constantly increase like this, because land resources is in short supply, some area also can not find suitable Tu Yuan near the speedway both sides of building, this just needs outer haul volume, and construction cost will increase.If the mud of training of river channel can be handled by suitable, improve the physico-mechanical properties of mud, make it to be used for engineering construction, so both solved a training of river channel sludge treatment difficult problem with soil, solved the predicament of engineering constructions such as speedway shortage Tu Yuan again, allowed mud carry out regeneration.The present invention utilizes a kind of curing compound of invention, and curing compound and mud are stirred, and makes mud obtain the rapid solidification moulding, and has certain intensity, can be used for engineering construction like this with soil, as filling and engineering backfill soil etc. of embankment.
Concrete operation is as follows:
Water content, clay component and the organic content of a, mensuration dredging silt,
B, preparation curing compound: the main component of curing compound has comprised the cement and the quicklime of solidification, the ratio of cement and lime is between 1: 1～4: 1, the main component of Portland cement is a tricalcium silicate, one of them CaO is easy to be released, play the series of physical chemical reaction with mud medium clay soil particle and water, form the hydrated silicate gel, be attached on soil particle or the soil skeleton or on the soil skeleton hole wall, form more complete soil skeleton, improve the mud intensity after solidifying; Quicklime has suction, expansion exothermic effects, produces ion-exchange and sclerous reaction with clay, and the reaction of whitewash earth forms compounds such as hydrated calcium silicate and drated calcium aluminate, the same mud intensity that improves after solidifying; The water content of considering dredging silt is added a kind of water reducing agent than higher, mainly is waste gypsum, and the waste gypsum ratio is generally 1～8% of cement and lime weight sum, and the calcium aluminate reaction forms crystallization water entringite in gypsum and the cement, and solid volume is increased; In addition, the clay component of mud is higher, the consolidation draining ability of mud is relatively poor, we suitably add some flour sands or flyash again as aggregate in curing compound, flour sand or flyash consumption are 3～5% of cement and lime weight sum, improve the grain composition and the draining proterties of mud, also favourable and enhancing soil skeleton intensity.
C, determine the ratio that mixes of curing compound.Mixing than generally being controlled at 5～20% of curing compound, concrete mixes than the water content size that depends mainly on dredging silt, the time that requires curing, curing back mud requirement of strength etc.The curing compound that mixes different proportion in mud carries out sample preparation, measures setting time, and the unconfined compression strength of maintenance 7 days, 14 days and 28 days is measured in sample preparation, finally determines the ratio that mixes of curing compound by best price/performance ratio.
D, scene are cured construction to mud.Be that curing compound and mud stir fast mainly, fully solidify fast with plant equipment.
Claims (2)
1. sullage solidifying method is characterized in that this method is:
Water content, clay component and the organic content of a, mensuration dredging silt,
B, preparation curing compound: the main component of curing compound has comprised the cement and the quicklime of solidification, and the part by weight of cement and lime is between 1: 1～4: 1; Waste gypsum is 1～8% of cement and lime quality sum as water reducing agent; Flour sand or flyash are as aggregate, and consumption is 3～5% of cement and a lime quality sum;
C, determine the ratio that mixes of curing compound: the mixing of curing compound than generally being controlled at 5～20%, promptly in mud, mix curing compound 1. 5% respectively, 2. 8%, 3. 10%, 4. 12%, 5. 15%, 6. 18%, 7. 20%, carry out sample preparation respectively, measure setting time, the unconfined compression strength of maintenance 7 days, 14 days and 28 days is measured in sample preparation, finally determines the ratio that mixes of curing compound by best price/performance ratio;
D, scene are cured construction to mud: with plant equipment curing compound and mud are stirred, fully solidify fast.
2. sullage solidifying method according to claim 1 when it is characterized in that with plant equipment curing compound and mud being stirred, is provided with little cofferdam at the place periphery, the drainage channel of establishing a band spun yarn net separated by a distance in the cofferdam; Implement plough after the scleroma of mud top layer is solidified again and mix, the mud of bottom is also further solidified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100193390A CN100564694C (en) | 2008-01-04 | 2008-01-04 | Sullage solidifying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100193390A CN100564694C (en) | 2008-01-04 | 2008-01-04 | Sullage solidifying method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101220590A true CN101220590A (en) | 2008-07-16 |
| CN100564694C CN100564694C (en) | 2009-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2008100193390A Expired - Fee Related CN100564694C (en) | 2008-01-04 | 2008-01-04 | Sullage solidifying method |
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Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349060B (en) * | 2008-08-29 | 2010-06-09 | 中冶集团武勘岩土基础工程公司 | Technique for reinforcing organic matter soft soil by concrete and coal ash secondary stirring powder spraying method |
| CN101579683B (en) * | 2009-05-27 | 2010-12-08 | 河海大学 | Phosphogypsum-sludge combined curing treatment method |
| CN101913805A (en) * | 2010-07-23 | 2010-12-15 | 北京工业大学 | Cured mud and sand material for building roadbeds and preparation method thereof |
| CN101967822A (en) * | 2010-09-28 | 2011-02-09 | 宁波高新区围海工程技术开发有限公司 | Construction mechanical device and construction method for fast consolidation of tidal marsh mud |
| CN102153303A (en) * | 2010-12-13 | 2011-08-17 | 中铁第四勘察设计院集团有限公司 | Chemical improving method using soft rock weathered material as high-speed railway subgrade filler |
| CN102173695A (en) * | 2011-01-10 | 2011-09-07 | 东南大学 | Novel composite additive for solidifying material for dredged silt with high water content |
| CN102352255A (en) * | 2011-07-20 | 2012-02-15 | 东南大学 | Silt curing agent base on industrial waste materials |
| CN102493304A (en) * | 2011-11-16 | 2012-06-13 | 天津市市政工程研究院 | Method for processing riverway sludge for filling subgrade by using construction wastes |
| CN102515647A (en) * | 2011-12-23 | 2012-06-27 | 南京工程学院 | Composite curing agent of silty soil and its using method |
| CN102869634A (en) * | 2010-04-30 | 2013-01-09 | 杰富意钢铁株式会社 | Method for producing artificial stone material |
| WO2013063774A1 (en) * | 2011-11-02 | 2013-05-10 | Empire Technology Development Llc | Solidifying sludge |
| CN104108905A (en) * | 2014-07-09 | 2014-10-22 | 浙江建设职业技术学院 | Early-strength composite curing agent for high-organic-matter mudflat silt and application thereof |
| CN105002884A (en) * | 2015-06-04 | 2015-10-28 | 河海大学 | Method for solidifying sludge of bottom of river or lake firstly and then conducting excavation |
| CN105019422A (en) * | 2015-06-04 | 2015-11-04 | 河海大学 | Foundation construction method for local solidification of topsoil and composite pile bearing |
| CN105200958A (en) * | 2015-08-30 | 2015-12-30 | 常州思宇环保材料科技有限公司 | Method for reinforcing river bank by utilizing dredger fill |
| CN106007276A (en) * | 2016-05-25 | 2016-10-12 | 上海理工大学 | Pretreatment and solidification method of heavy-metal-polluted river course sediment |
| CN106968284A (en) * | 2017-02-28 | 2017-07-21 | 李兴 | A kind of method of river embankment original position hardening mud desilting again |
| JP2017166141A (en) * | 2016-03-14 | 2017-09-21 | 株式会社フジタ | Vegetation base and construction method thereof |
| CN108316346A (en) * | 2018-03-07 | 2018-07-24 | 宁波工程学院 | A kind of green processing method in discarded underground people's air defense hole |
| CN108358663A (en) * | 2018-05-07 | 2018-08-03 | 杨诚龙 | A method of preparing sludge curing agent using solid waste lime-ash |
| CN108585652A (en) * | 2018-07-20 | 2018-09-28 | 思力佳特种环保材料（深圳）有限公司 | A kind of regeneration activity material, preparation method and environmental protection brick based on mud dregs |
| CN109081538A (en) * | 2018-09-06 | 2018-12-25 | 福州大学 | A kind of river bottom mud curing method implemented based on liquid limit index |
| CN110294579A (en) * | 2019-04-11 | 2019-10-01 | 中国电建集团华东勘测设计研究院有限公司 | A kind of method of disposal of sludge solidification, resource reutilization |
| CN110470516A (en) * | 2019-08-25 | 2019-11-19 | 天津大学 | A method of solidification effect is studied using orthogonal experiment using compounding curing agent |
| CN110526647A (en) * | 2019-09-11 | 2019-12-03 | 上海海顾新材料科技有限公司 | A kind of bed mud desiccation consolidating agent and preparation method thereof |
| CN110761263A (en) * | 2019-10-12 | 2020-02-07 | 林艳芬 | Method for reinforcing soft foundation |
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| CN112062443A (en) * | 2020-08-10 | 2020-12-11 | 安徽科清水环境技术有限公司 | Ecological dredging sludge on-site rapid curing process |
| CN112707609A (en) * | 2020-12-09 | 2021-04-27 | 国网江苏省电力工程咨询有限公司 | On-site quality control method, terminal and medium for sludge solidification and filler utilization |
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| CN113354232A (en) * | 2021-07-06 | 2021-09-07 | 余森源 | Environment-friendly silt treatment facility for hydraulic engineering |
| CN115304331A (en) * | 2022-08-26 | 2022-11-08 | 武汉轻工大学 | Environment-friendly composite industrial waste solidified sludge and preparation method thereof |
-
2008
- 2008-01-04 CN CNB2008100193390A patent/CN100564694C/en not_active Expired - Fee Related
Cited By (42)
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| CN101349060B (en) * | 2008-08-29 | 2010-06-09 | 中冶集团武勘岩土基础工程公司 | Technique for reinforcing organic matter soft soil by concrete and coal ash secondary stirring powder spraying method |
| CN101579683B (en) * | 2009-05-27 | 2010-12-08 | 河海大学 | Phosphogypsum-sludge combined curing treatment method |
| CN102869634A (en) * | 2010-04-30 | 2013-01-09 | 杰富意钢铁株式会社 | Method for producing artificial stone material |
| CN102869634B (en) * | 2010-04-30 | 2015-04-22 | 杰富意钢铁株式会社 | Method for producing artificial stone material |
| CN101913805A (en) * | 2010-07-23 | 2010-12-15 | 北京工业大学 | Cured mud and sand material for building roadbeds and preparation method thereof |
| CN101913805B (en) * | 2010-07-23 | 2012-08-15 | 北京工业大学 | Cured mud and sand material for building roadbeds and preparation method thereof |
| CN101967822A (en) * | 2010-09-28 | 2011-02-09 | 宁波高新区围海工程技术开发有限公司 | Construction mechanical device and construction method for fast consolidation of tidal marsh mud |
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| CN105200958B (en) * | 2015-08-30 | 2017-01-11 | 王银山 | Method for reinforcing river bank by utilizing dredger fill |
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| CN108316346A (en) * | 2018-03-07 | 2018-07-24 | 宁波工程学院 | A kind of green processing method in discarded underground people's air defense hole |
| CN108316346B (en) * | 2018-03-07 | 2020-12-15 | 宁波工程学院 | Green treatment method for abandoned underground civil air defense hole |
| CN108358663A (en) * | 2018-05-07 | 2018-08-03 | 杨诚龙 | A method of preparing sludge curing agent using solid waste lime-ash |
| CN108585652A (en) * | 2018-07-20 | 2018-09-28 | 思力佳特种环保材料（深圳）有限公司 | A kind of regeneration activity material, preparation method and environmental protection brick based on mud dregs |
| CN109081538A (en) * | 2018-09-06 | 2018-12-25 | 福州大学 | A kind of river bottom mud curing method implemented based on liquid limit index |
| CN110294579A (en) * | 2019-04-11 | 2019-10-01 | 中国电建集团华东勘测设计研究院有限公司 | A kind of method of disposal of sludge solidification, resource reutilization |
| CN110470516A (en) * | 2019-08-25 | 2019-11-19 | 天津大学 | A method of solidification effect is studied using orthogonal experiment using compounding curing agent |
| CN110526647A (en) * | 2019-09-11 | 2019-12-03 | 上海海顾新材料科技有限公司 | A kind of bed mud desiccation consolidating agent and preparation method thereof |
| CN110526647B (en) * | 2019-09-11 | 2022-02-18 | 上海海顾新材料科技有限公司 | Bottom mud drying solidification agent and preparation method thereof |
| CN110761263A (en) * | 2019-10-12 | 2020-02-07 | 林艳芬 | Method for reinforcing soft foundation |
| CN111562289A (en) * | 2020-07-08 | 2020-08-21 | 中建四局第三建设有限公司 | In-situ testing method for sludge solidification |
| CN111562289B (en) * | 2020-07-08 | 2022-07-08 | 中建四局第三建设有限公司 | In-situ testing method for sludge solidification |
| CN112062443A (en) * | 2020-08-10 | 2020-12-11 | 安徽科清水环境技术有限公司 | Ecological dredging sludge on-site rapid curing process |
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| CN113354232A (en) * | 2021-07-06 | 2021-09-07 | 余森源 | Environment-friendly silt treatment facility for hydraulic engineering |
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