CN108046697A - A kind of rapid-hardening curing agent for urban rivers and lakes sludge solidification dredging - Google Patents
A kind of rapid-hardening curing agent for urban rivers and lakes sludge solidification dredging Download PDFInfo
- Publication number
- CN108046697A CN108046697A CN201711334543.7A CN201711334543A CN108046697A CN 108046697 A CN108046697 A CN 108046697A CN 201711334543 A CN201711334543 A CN 201711334543A CN 108046697 A CN108046697 A CN 108046697A
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- Prior art keywords
- parts
- curing agent
- rapid
- lakes
- dredging
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/008—Sludge treatment by fixation or solidification
-
- 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
- C04B2111/00767—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes
Abstract
The invention discloses a kind of rapid-hardening curing agent for urban rivers and lakes sludge solidification dredging, the curing agent is made of following raw material：1.8 ~ 2.0 parts of portland cement, 2.1 ~ 2.3 parts of S95 granulated blast-furnace slags, 1.0 ~ 1.5 parts of quick lime, 2.0 ~ 2.5 parts of flyash, 0.3 ~ 0.6 part of gypsum, 0.4 ~ 0.8 part of calcium-base bentonite, 0.5 ~ 1.0 part of metakaolin, 0.4 ~ 0.8 part of accelerator.The curing agent of the present invention improves the physico-mechanical properties of mud by physical-chemical reaction, and the harmful substance in absorption solidification mud solves the cleaning problem of river and interior lake silt, avoids causing secondary pollution to environment during dredging.
Description
Technical field
The present invention relates to a kind of rapid-hardening curing agent for urban rivers and lakes sludge solidification dredging, belong to sludge curing agent neck
Domain.
Background technology
With the sharp increase of urban population, society, economic fast development, a large amount of untreated production waste water, life are dirty
Water is discharged into inland lake, month after month, in one thick layer bed mud of riverbed and lake bed deposits throughout the year.Cause external source in city seriously polluted, water
Body eutrophication is constantly aggravated, deteriorating water quality, significantly impacts the ecological environment in city and resident living environment.The siltation in river
The contradictions such as problem, environmental problem become increasingly conspicuous.Riverway sludge how is disposed, finds practicable most effective solution route, it is real
The comprehensive utilization of existing resource, gives full play to audit immunization, it has also become the problem of social concerns.
It is traditional to cure dredging there are curing rate is slow, and curing undesirable to the sludge solidification effect of moisture content superelevation
The problems such as of high cost.
The content of the invention
It is an object of the invention in view of the shortcomings of the prior art, providing a kind of speed for urban rivers and lakes sludge solidification dredging
Solidifying type curing agent.The curing agent of the present invention improves the physico-mechanical properties of mud, absorption solidification mud by physical-chemical reaction
In harmful substance, solve the cleaning problem of river and interior lake silt, avoid causing environment during dredging secondary dirt
Dye.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of rapid-hardening curing agent for urban rivers and lakes sludge solidification dredging is counted, the curing agent is by following in parts by weight
Raw material is made：
Portland cement：1.8 ~ 2.0 parts；
S95 granulated blast-furnace slags：2.1 ~ 2.3 parts；
Quick lime：1.0 ~ 1.5 parts；
Flyash：2.0 ~ 2.5 parts；
Gypsum：0.3 ~ 0.6 part；
Calcium-base bentonite：0.4 ~ 0.8 part；
Metakaolin：0.5 ~ 1.0 part；
Accelerator：0.4 ~ 0.8 part.
The portland cement is 42.5 Portland cements of P.O.
The quick lime is CL90 quick limes.
The flyash is II grades of flyash of F classes.
The raw material composition of the accelerator is calculated by weight as：3.5 parts of polyacrylamide, 2.2 parts of Sodium Polyacrylate, partially
0.8 part of 2.0 parts of sodium aluminate, 0.5 part of aluminum sulfate, 1.0 parts of sodium nitrate and iron chloride.
The metakaolin be by kaolin at moderate temperatures（600℃~900℃）Through dehydration formation with silicic acid anhydride
Aluminium（Al2O3·2SiO2）For main essential mineral, grinding is more than 400m into specific surface area2The high activity powder body material of/g.
For the calcium-base bentonite using montmorillonite as the nonmetallic minerals of main mineral constituent, smectite structure is by two silicon
Oxygen tetrahedron presss from both sides the 2 of one layer of alumina octahedral composition:1 type crystal structure, calcium-base bentonite have strong hygroscopicity and dilatancy,
The water of adsorbable 8~15 times of own vols, volume expansion is up to several times to 30 times；It can be dispersed into aqueous medium as a form of gel
And suspension, this medium solution have certain viscosity, thixotropy and lubricity；There is stronger cation exchange capacity (CEC)；
There is certain adsorption capacity to various gases, liquid, organic substance, maximal absorptive capacity is up to 5 times of weight of itself；It with
The admixture of water, mud or fine sand has plasticity and cohesiveness；Acid bleaching soil with surface-active can adsorb coloured ion.
The beneficial effects of the present invention are：
（1）The rate of set of curing agent of the present invention is fast, can reduce rapidly Free water in mud, improves the plasticity of mud, reaches
The construction time is shortened in the requirement of outward transport；
（2）Curing agent of the present invention has prosthetic to soil, can adsorb the harmful substance in mud, improves silt structure.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described, but the present invention is not limited only to these embodiments.
Embodiment 1
A kind of rapid-hardening curing agent for urban rivers and lakes sludge solidification dredging is counted, the curing agent is by following in parts by weight
Raw material is made：
42.5 portland cements of P.O：1.8 part；
S95 granulated blast-furnace slags：2.1 part；
CL90 quick limes：1.2 part；
F.II grades of flyash：2.2 part；
Gypsum：0.5 part；
Calcium-base bentonite：0.4 part；
Metakaolin：0.5 part；
Accelerator：0.4 part；
The accelerator is by 3.5 parts of polyacrylamide, 2.2 parts of Sodium Polyacrylate, 2.0 parts of sodium metaaluminate, 0.5 part of aluminum sulfate, nitre
Sour 1.0 parts of sodium is mixed with 0.8 part of iron chloride.
The rapid-hardening curing agent is made after above-mentioned each raw material is mixed in proportion.
Embodiment 2
A kind of rapid-hardening curing agent for urban rivers and lakes sludge solidification dredging is counted, the curing agent is by following in parts by weight
Raw material is made：
42.5 portland cements of P.O：1.9 part；
S95 granulated blast-furnace slags：2.3 part；
CL90 quick limes：1.5 part；
F.II grades of flyash：2.5 part；
Gypsum：0.6 part；
Calcium-base bentonite：0.8 part；
Metakaolin：0.8 part；
Accelerator：0.8 part；
The accelerator is by 3.5 parts of polyacrylamide, 2.2 parts of Sodium Polyacrylate, 2.0 parts of sodium metaaluminate, 0.5 part of aluminum sulfate, nitre
Sour 1.0 parts of sodium is mixed with 0.8 part of iron chloride.
The rapid-hardening curing agent is made after above-mentioned each raw material is mixed in proportion.
Embodiment 3
A kind of rapid-hardening curing agent for urban rivers and lakes sludge solidification dredging is counted, the curing agent is by following in parts by weight
Raw material is made：
42.5 portland cements of P.O：2.0 part；
S95 granulated blast-furnace slags：2.2 part；
CL90 quick limes：1.0 part；
F.II grades of flyash：2.0 part；
Gypsum：0.3 part；
Calcium-base bentonite：0.5 part；
Metakaolin：1.0 part；
Accelerator：0.6 part；
The accelerator is by 3.5 parts of polyacrylamide, 2.2 parts of Sodium Polyacrylate, 2.0 parts of sodium metaaluminate, 0.5 part of aluminum sulfate, nitre
Sour 1.0 parts of sodium is mixed with 0.8 part of iron chloride.
The rapid-hardening curing agent is made after above-mentioned each raw material is mixed in proportion.
The present invention is by analyzing Fuzhou inland lake and riverway sludge, by the curing agent and riverway sludge of the present invention
（Moisture content is not more than 150%）By 90kg/m3It after ratio mixing, stirs 30 minutes, you can obtain losing flowability consolidating of can transporting outward
Change soil.Testing result is as shown in table 1.
Table 1 cures testing result
The foregoing is merely presently preferred embodiments of the present invention, and all equivalent changes done according to scope of the present invention patent are with repairing
Decorations should all belong to the covering scope of the present invention.
Claims (5)
1. a kind of rapid-hardening curing agent for urban rivers and lakes sludge solidification dredging, it is characterised in that：It counts in parts by weight, it is described
Curing agent is made of following raw material：
Portland cement：1.8 ~ 2.0 parts；
S95 granulated blast-furnace slags：2.1 ~ 2.3 parts；
Quick lime：1.0 ~ 1.5 parts；
Flyash：2.0 ~ 2.5 parts；
Gypsum：0.3 ~ 0.6 part；
Calcium-base bentonite：0.4 ~ 0.8 part；
Metakaolin：0.5 ~ 1.0 part；
Accelerator：0.4 ~ 0.8 part.
2. the rapid-hardening curing agent according to claim 1 for urban rivers and lakes sludge solidification dredging, it is characterised in that：Institute
Portland cement is stated as 42.5 Portland cements of P.O.
3. the rapid-hardening curing agent according to claim 1 for urban rivers and lakes sludge solidification dredging, it is characterised in that：Institute
Quick lime is stated as CL90 quick limes.
4. the rapid-hardening curing agent according to claim 1 for urban rivers and lakes sludge solidification dredging, it is characterised in that：Institute
Flyash is stated as II grades of flyash of F classes.
5. the rapid-hardening curing agent according to claim 1 for urban rivers and lakes sludge solidification dredging, it is characterised in that：
The raw material composition of the accelerator is calculated by weight as：3.5 parts of polyacrylamide, 2.2 parts of Sodium Polyacrylate, meta-aluminic acid
0.8 part of 2.0 parts of sodium, 0.5 part of aluminum sulfate, 1.0 parts of sodium nitrate and iron chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711334543.7A CN108046697A (en) | 2017-12-14 | 2017-12-14 | A kind of rapid-hardening curing agent for urban rivers and lakes sludge solidification dredging |
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| CN201711334543.7A CN108046697A (en) | 2017-12-14 | 2017-12-14 | A kind of rapid-hardening curing agent for urban rivers and lakes sludge solidification dredging |
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| CN108046697A true CN108046697A (en) | 2018-05-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109013637A (en) * | 2018-06-08 | 2018-12-18 | 中建三局第二建设工程有限责任公司 | A kind of in-situ modified solidification processing method of industry white clay |
| CN109258393A (en) * | 2018-11-13 | 2019-01-25 | 湖北恒沁环保科技有限责任公司 | It is a kind of with sludge solidification preparation planting soil and its application |
| CN109970314A (en) * | 2018-12-25 | 2019-07-05 | 安徽佳明环保科技股份有限公司 | A kind of compound drying agent and its preparation and application |
| CN113135730A (en) * | 2021-05-17 | 2021-07-20 | 浙江久豪建筑勘测设计有限公司 | Curing agent and curing process applied to soft soil foundation |
| CN114735905A (en) * | 2022-03-08 | 2022-07-12 | 河北恒特环保工程有限公司 | Environment-friendly dredging sludge curing agent for river and lake treatment and preparation method thereof |
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| JP3319734B2 (en) * | 2000-02-04 | 2002-09-03 | 繁行 河田 | Architectural materials and their production and construction methods |
| CN105198367A (en) * | 2015-08-17 | 2015-12-30 | 广州市建筑科学研究院有限公司 | Curing agent capable of rapidly curing sludge at room temperature and use method thereof |
| CN105819798A (en) * | 2015-01-04 | 2016-08-03 | 三川德青科技有限公司 | Rapid-hardening high-strength sludge consolidation agent and preparation method thereof |
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2017
- 2017-12-14 CN CN201711334543.7A patent/CN108046697A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3319734B2 (en) * | 2000-02-04 | 2002-09-03 | 繁行 河田 | Architectural materials and their production and construction methods |
| CN105819798A (en) * | 2015-01-04 | 2016-08-03 | 三川德青科技有限公司 | Rapid-hardening high-strength sludge consolidation agent and preparation method thereof |
| CN105198367A (en) * | 2015-08-17 | 2015-12-30 | 广州市建筑科学研究院有限公司 | Curing agent capable of rapidly curing sludge at room temperature and use method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109013637A (en) * | 2018-06-08 | 2018-12-18 | 中建三局第二建设工程有限责任公司 | A kind of in-situ modified solidification processing method of industry white clay |
| CN109258393A (en) * | 2018-11-13 | 2019-01-25 | 湖北恒沁环保科技有限责任公司 | It is a kind of with sludge solidification preparation planting soil and its application |
| CN109970314A (en) * | 2018-12-25 | 2019-07-05 | 安徽佳明环保科技股份有限公司 | A kind of compound drying agent and its preparation and application |
| CN113135730A (en) * | 2021-05-17 | 2021-07-20 | 浙江久豪建筑勘测设计有限公司 | Curing agent and curing process applied to soft soil foundation |
| CN114735905A (en) * | 2022-03-08 | 2022-07-12 | 河北恒特环保工程有限公司 | Environment-friendly dredging sludge curing agent for river and lake treatment and preparation method thereof |
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Application publication date: 20180518 |
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