CN103880371A - Method for preparing artificial ecological aggregate by using inland sludge and near-shore high-sand mud - Google Patents
Method for preparing artificial ecological aggregate by using inland sludge and near-shore high-sand mud Download PDFInfo
- Publication number
- CN103880371A CN103880371A CN201410053804.8A CN201410053804A CN103880371A CN 103880371 A CN103880371 A CN 103880371A CN 201410053804 A CN201410053804 A CN 201410053804A CN 103880371 A CN103880371 A CN 103880371A
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- China
- Prior art keywords
- mud
- stol
- sludge
- inland
- parts
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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
- 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
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/021—Agglomerated materials, e.g. artificial aggregates agglomerated by a mineral binder, e.g. cement
Abstract
The invention provides a method for preparing artificial ecological aggregate by using inland sludge and near-shore high-sand mud. The method comprises the following steps: filtering sludge and high-sand mud to remove large particles with particle diameter being greater than 2 millimeters; naturally withering the filtered sludge and high-sand mud; uniformly mixing the sludge, the high-sand mud, cement, coal ash, quicklime, steel slag, silicon ash, an activator, an early strength agent and water; pelletizing the mixture into balls in a pelletizer; naturally curing finished balls, spraying water for curing, spraying a waterproof coating or an alkaline activation curing agent, and curing naturally. The ecological aggregate which can be applied to planting concrete is mainly prepared from sludge and near-shore high-sand mud, so that natural gravels and cobbles in planting cement are replaced completely or partially, sludge is treated effectively, and environmental problems caused by sludge are solved. Moreover, sludge is turned into a usable resource to be utilized effectively, so that the method has good economical value and social value.
Description
Technical field
The invention belongs to Material Field, particularly a kind of method of utilizing inland mud and the clay standby artificial ecological aggregate of offshore STOL.
Background technology
Mud be the fine particles such as clay mineral under the effect of intergranular electrostatic force and molecular attraction, there is slowly the cotton-shaped and polynuclear plane that deposition forms in flowing water environment in ocean or lakelands etc.Because China at the beginning of industrial and agricultural development is inadequate to the attention degree of environment protection; along with further developing of industrial or agricultural; cause that a large amount of industrial or agricultural and sanitary sewage are unprocessed to be directly discharged in rivers and lakes; cause water surrounding to be destroyed; simultaneously due to the pollutent sedimentation in water body; pollutant load in mud increases, and makes mud contaminated serious.Contaminated mud becomes endogenous pollution source, mud by disturbance situation under, the pollutent in mud can be released, again contaminate environment.How to suit measures to local conditions, effectively utilize mud to avoiding secondary pollution, resource circulation utilization, build a conservation-minded society significant.
Along with China's rapid economic development, like a raging fire the carrying out of various construction projects, busy at putting up installationsly change to a great extent original landforms and vegetation, form a lot of exposed slight slopes and rock slope, ecological overbalance, soil erosion easily occurs, and landslide, caves in.Comparatively promising bulkhead tech is exactly concrete for plant growth bank protection at present.And aggregate in the concrete for plant growth bulkhead tech that at present institute study and applies is mostly employing natural rubble or cobble, this will certainly cause a large amount of consumption of natural non-renewable rock material resource.
Summary of the invention
Goal of the invention: in order to overcome above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of method of utilizing the clay standby artificial ecological aggregate of inland river, lake, fine sediment of reservoir and offshore STOL.
Technical scheme: a kind of method of utilizing inland mud and the clay standby artificial ecological aggregate of offshore STOL provided by the invention, comprises the following steps:
(1) filter mud and STOL mud, be greater than the macrobead of 2mm to remove particle diameter; Object is to remove the foreign material such as macrobead stone, branch and waterplant that mud contains
(2) be 5-20% by mud and STOL mud natural air drying to water ratio after filtering;
(3) mud, STOL mud, cement, flyash, unslaked lime, slag, silicon ash, exciting agent, hardening accelerator and water are mixed;
(4) by the granulation balling-up in balling-up tablets press of the mixture of step (3);
(5) by after the finished ball natural curing of step (4) wet curing, then spray waterproof paint or the agent of alkali solidification,
Natural curing 1-5 days and get final product.
Wherein, in step (3), the weight part of each raw material is respectively: mud 20-35 part, STOL mud 20-35 part, cement 15-25 part, flyash 10-20 part, unslaked lime 1-10 part, slag 1-10 part, silicon ash 1-10 part, exciting agent 1-10 part, hardening accelerator 0-1 part, water 1-10 part.
Wherein, in step (3), described exciting agent comprises the component of following weight part: gypsum, phosphogypsum or desulfurated plaster 40-60 part, NaOH10-20 part, water glass (NaSiO
3) 10-20 part, Al
2(SO
4)
3one or more in 15-30 part, saltcake 5-10 part.
Wherein, in step (3), described hardening accelerator is that mass ratio is (40-60): Na (40-60)
2sO
4and FeSO
4mixture.
Wherein, in step (5), the agent of described alkali solidification is EvercreteDPS.
Beneficial effect: the present invention utilizes mud and offshore STOL mud to prepare the ecological aggregate can be applicable in concrete for plant growth for main raw material, thereby the natural rubble in concrete for plant growth, cobble are replaced wholly or in part, the mud of not only effectively processing, the environmental problem of having avoided mud to bring, and mud is become to available resource carry out effective utilization, reach that refuse is innoxious, the object of resource utilization, there is good economic worth and social value.
The ecological aggregate that the present invention makes has light weight, granularity is adjustable, the feature of good stability, and it is free of calcining and steam curing type, and preparation technology is simple, with low cost, is conducive to apply.
Embodiment
Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiment is only not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
Embodiment 1
(1), get inland river, lake, fine sediment of reservoir and offshore STOL mud, be greater than the macrobead of 2mm to remove particle diameter, be 5% by mud and STOL mud nature mummification to water ratio;
(2), get 25 parts, mud, 18 parts of 25 parts, 42.5 grades silicate cements of STOL mud, 18 parts, flyash, 5 parts, slag, 5 parts of silicon ashes, 2 parts of unslaked limes, 1.4 parts of exciting agents, 0.6 part of hardening accelerator, 5 parts, water, put into together stirrer for mixing even.Wherein, described exciting agent comprises the component of following weight part: 50 parts, gypsum, NaOH15 part, water glass (NaSiO
3) 15 parts, Al
2(SO
4)
37 parts of 20 parts, saltcake, described hardening accelerator is that mass ratio is the Na of 50:50
2sO
4and FeSO
4mixture.
(3), the uniform mixture of step (2) is input to granulation balling-up in balling-up tablets press (spraying appropriate atomized water when granulation).
(4), the finished ball in step (3) is placed to maintenance under field conditions (factors) in good time carry out wet curing, reach after curing age again at finished ball surface sprinkling water-proof acrylic acid paint.Maintenance 1d makes ecological aggregate again.
Embodiment 2
(1), get inland river, lake, fine sediment of reservoir and offshore STOL mud, filter take remove macrobead that particle diameter is greater than 2mm by mud and the mummification of STOL mud nature to water ratio as 8 parts;
(2), get 28 parts, mud, 17 parts of 28 parts, 42.5 grades silicate cements of STOL mud, 17 parts, flyash, 5 parts, slag, 1.5 parts of silicon ashes, 2 parts of unslaked limes, 1.2 parts of exciting agents, 0.3 part of hardening accelerator, 10 parts, water, put into together stirrer for mixing even.Wherein, described exciting agent comprises the component of following weight part: 50 parts, gypsum, NaOH15 part, water glass (NaSiO
3) 15 parts, Al
2(SO
4)
38 parts of 25 parts, saltcake, described hardening accelerator is that mass ratio is the Na of 50:50
2sO
4and FeSO
4mixture.
(3), the uniform mixture of step (2) is input to granulation balling-up in balling-up tablets press (spraying appropriate atomized water when granulation).
(4), the finished ball in step (3) is placed to maintenance under field conditions (factors) in good time carry out wet curing, reach after curing age again at finished ball surface sprinkling water-proof acrylic acid paint.Maintenance 3d makes ecological aggregate again.
Embodiment 3
(1), get inland river, lake, fine sediment of reservoir and offshore STOL mud, filter take remove macrobead that particle diameter is greater than 2mm by mud and the mummification of STOL mud nature to water ratio as 8 parts;
(2), get 24 parts, mud, 19 parts of 24 parts, 42.5 grades silicate cements of STOL mud, 17 parts, flyash, 7 parts, slag, 2 parts of silicon ashes, 5 parts of unslaked limes, 1.6 parts of exciting agents, 0.4 part of hardening accelerator, 1 part, water, put into together stirrer for mixing even.Wherein, described exciting agent comprises the component of following weight part: 50 parts, gypsum, NaOH15 part, water glass (NaSiO
3) 15 parts, Al
2(SO
4)
38 parts of 25 parts, saltcake, described hardening accelerator is that mass ratio is the Na of 50:50
2sO
4and FeSO
4mixture.
(3), the uniform mixture of step (2) is input to granulation balling-up in balling-up tablets press (spraying appropriate atomized water when granulation).
(4), the finished ball in step (3) is placed to maintenance under field conditions (factors) in good time carry out wet curing, reach after curing age again at finished ball surface sprinkling water-proof acrylic acid paint.Maintenance 1d makes ecological aggregate again.
Embodiment 4
(1), get inland river, lake, fine sediment of reservoir and offshore STOL mud, filter take remove macrobead that particle diameter is greater than 2mm by mud and the mummification of STOL mud nature to water ratio as 15 parts;
(2), get 20 parts, mud, 15 parts of 35 parts, 42.5 grades silicate cements of STOL mud, 10 parts, flyash, 1 part, slag, 1 part of silicon ash, 1 part of unslaked lime, 1 part of exciting agent, 3 parts, water, put into together stirrer for mixing even.
(3), the uniform mixture of step (2) is input to granulation balling-up in balling-up tablets press (spraying appropriate atomized water when granulation).Wherein, described exciting agent comprises the component of following weight part: 40 parts of phosphogypsums, NaOH20 part, water glass (NaSiO
3) 20 parts, Al
2(SO
4)
3one or more in 5 parts of 15 parts, saltcake, described hardening accelerator is that mass ratio is the Na of 40:60
2sO
4and FeSO
4mixture.
(4), the finished ball in step (3) is placed to maintenance under field conditions (factors) in good time carry out wet curing, reach after curing age again at finished ball surface sprinkling water-proof acrylic acid paint.Maintenance 5d makes ecological aggregate again.
Embodiment 5
(1), get inland river, lake, fine sediment of reservoir and offshore STOL mud, filter take remove macrobead that particle diameter is greater than 2mm by mud and the mummification of STOL mud nature to water ratio as 20 parts;
(2), getting 8 parts, 35 parts, mud, 25 parts of 20 parts, 42.5 grades silicate cements of STOL mud, 20 parts, flyash, 10 parts, slag, 10 parts of silicon ashes, 10 parts of unslaked limes, 10 parts of exciting agents, 1 part of hardening accelerator, water adds stirrer for mixing even.Wherein, described exciting agent comprises the component of following weight part: 60 parts of desulfurated plasters, NaOH10 part, water glass (NaSiO
3) 10 parts, Al
2(SO
4)
3one or more in 10 parts of 30 parts, saltcake, described hardening accelerator is that mass ratio is the Na of 60:40
2sO
4and FeSO
4mixture.
(3), the uniform mixture of step (2) is input to granulation balling-up in balling-up tablets press (spraying appropriate atomized water when granulation).
(4), the finished ball in step (3) is placed to maintenance under field conditions (factors) in good time carry out wet curing, reach after curing age again at finished ball surface sprinkling alkali solidification agent EvercreteDPS.Make ecological aggregate.
Claims (5)
1. a method of utilizing the clay standby artificial ecological aggregate of inland mud and offshore STOL, is characterized in that: comprise the following steps:
(1) filter mud and STOL mud, be greater than the macrobead of 2mm to remove particle diameter;
(2) be 5-20% by mud and STOL mud natural air drying to water ratio after filtering;
(3) mud, STOL mud, cement, flyash, unslaked lime, slag, silicon ash, exciting agent, hardening accelerator and water are mixed;
(4) by the granulation balling-up in balling-up tablets press of the mixture of step (3);
(5) by after the finished ball natural curing of step (4) wet curing, then spray waterproof paint or the agent of alkali solidification, natural curing 1-5 days and get final product.
2. a kind of method of utilizing inland mud or the clay standby artificial ecological aggregate of offshore STOL according to claim 1, it is characterized in that: in step (3), the weight part of each raw material is respectively: mud 20-35 part, STOL mud 20-35 part, cement 15-25 part, flyash 10-20 part, unslaked lime 1-10 part, slag 1-10 part, silicon ash 1-10 part, exciting agent 1-10 part, hardening accelerator 0-1 part, water 1-10 part.
3. a kind of method of utilizing inland mud or the clay standby artificial ecological aggregate of offshore STOL according to claim 1, it is characterized in that: in step (3), described exciting agent comprises the component of following weight part: gypsum, phosphogypsum or desulfurated plaster 40-60 part, NaOH10-20 part, water glass (NaSiO
3) 10-20 part, Al
2(SO
4)
3one or more in 15-30 part, saltcake 5-10 part.
4. a kind of method of utilizing inland mud or the clay standby artificial ecological aggregate of offshore STOL according to claim 1, is characterized in that: in step (3), described hardening accelerator is that mass ratio is (40-60): Na (40-60)
2sO
4and FeSO
4mixture.
5. a kind of method of utilizing inland mud or the clay standby artificial ecological aggregate of offshore STOL according to claim 1, is characterized in that: in step (5), the agent of described alkali solidification is EvercreteDPS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410053804.8A CN103880371B (en) | 2014-02-18 | 2014-02-18 | A kind of method utilizing inland mud and the clay standby artificial ecological aggregate of offshore STOL |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410053804.8A CN103880371B (en) | 2014-02-18 | 2014-02-18 | A kind of method utilizing inland mud and the clay standby artificial ecological aggregate of offshore STOL |
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| CN103880371A true CN103880371A (en) | 2014-06-25 |
| CN103880371B CN103880371B (en) | 2015-12-09 |
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ID=50949543
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104891892A (en) * | 2015-05-13 | 2015-09-09 | 河海大学 | Method used for preparing simulate planting concrete from sludge |
| CN105036691A (en) * | 2015-07-01 | 2015-11-11 | 天津科技大学 | Method for preparing non-sintered ceramsite by adding dredged sludge |
| WO2016133463A1 (en) * | 2015-02-17 | 2016-08-25 | Nanyang Technological University | Method of manufacturing a lightweight material |
| CN107253847A (en) * | 2017-06-28 | 2017-10-17 | 武汉大学 | The method that a kind of utilization ocean waste silt prepares environmentally friendly arenolite |
| CN107500703A (en) * | 2017-07-26 | 2017-12-22 | 四川建筑职业技术学院 | A kind of environmentally friendly light-weight aggregate prepared using mud and preparation method thereof |
| CN109354465A (en) * | 2018-12-10 | 2019-02-19 | 交通运输部天津水运工程科学研究所 | A kind of artificial ecological stone 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 |
| CN110372268A (en) * | 2019-07-20 | 2019-10-25 | 江苏懿必合建筑结构优化有限公司 | Macadam prepared from soil and comprehensive construction waste, preparation system and preparation method thereof |
| CN112194394A (en) * | 2020-09-14 | 2021-01-08 | 深圳大学 | Preparation method of artificial building aggregate based on sludge |
| CN113354376A (en) * | 2021-06-23 | 2021-09-07 | 武汉理工大学 | Phosphogypsum-based aggregate and preparation method thereof |
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|---|---|---|---|---|
| CN101343172A (en) * | 2008-08-20 | 2009-01-14 | 厦门大学 | Light porcelain granule with ocean floor sullage as raw material and preparation thereof |
| CN102030491A (en) * | 2010-11-05 | 2011-04-27 | 张大磊 | Method for preparing ultra-light high-strength ceramic aggregate from dredged bottom mud and nearshore high-sand content mud |
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2014
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343172A (en) * | 2008-08-20 | 2009-01-14 | 厦门大学 | Light porcelain granule with ocean floor sullage as raw material and preparation thereof |
| CN102030491A (en) * | 2010-11-05 | 2011-04-27 | 张大磊 | Method for preparing ultra-light high-strength ceramic aggregate from dredged bottom mud and nearshore high-sand content mud |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016133463A1 (en) * | 2015-02-17 | 2016-08-25 | Nanyang Technological University | Method of manufacturing a lightweight material |
| CN104891892A (en) * | 2015-05-13 | 2015-09-09 | 河海大学 | Method used for preparing simulate planting concrete from sludge |
| CN105036691A (en) * | 2015-07-01 | 2015-11-11 | 天津科技大学 | Method for preparing non-sintered ceramsite by adding dredged sludge |
| CN105036691B (en) * | 2015-07-01 | 2017-03-29 | 天津科技大学 | A kind of method that admixture Dredged bed mud prepares baking-free ceramicite |
| CN107253847A (en) * | 2017-06-28 | 2017-10-17 | 武汉大学 | The method that a kind of utilization ocean waste silt prepares environmentally friendly arenolite |
| CN107500703A (en) * | 2017-07-26 | 2017-12-22 | 四川建筑职业技术学院 | A kind of environmentally friendly light-weight aggregate prepared using mud and preparation method thereof |
| CN109354465A (en) * | 2018-12-10 | 2019-02-19 | 交通运输部天津水运工程科学研究所 | A kind of artificial ecological stone 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 |
| CN110316987B (en) * | 2019-07-08 | 2021-09-28 | 山西大学 | Baking-free natural curing slow-release artificial aggregate and preparation method thereof |
| CN110372268A (en) * | 2019-07-20 | 2019-10-25 | 江苏懿必合建筑结构优化有限公司 | Macadam prepared from soil and comprehensive construction waste, preparation system and preparation method thereof |
| CN110372268B (en) * | 2019-07-20 | 2021-08-31 | 江苏懿必合建筑结构优化有限公司 | Macadam prepared from soil and comprehensive construction waste, preparation system and preparation method thereof |
| CN112194394A (en) * | 2020-09-14 | 2021-01-08 | 深圳大学 | Preparation method of artificial building aggregate based on sludge |
| CN113354376A (en) * | 2021-06-23 | 2021-09-07 | 武汉理工大学 | Phosphogypsum-based aggregate and preparation method thereof |
| CN113354376B (en) * | 2021-06-23 | 2022-08-09 | 武汉理工大学 | Phosphogypsum-based aggregate and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN103880371B (en) | 2015-12-09 |
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