CN103880371B - A method for preparing artificial ecological aggregate using inland silt and near-shore high-sand mud - Google Patents
A method for preparing artificial ecological aggregate using inland silt and near-shore high-sand mud Download PDFInfo
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- CN103880371B CN103880371B CN201410053804.8A CN201410053804A CN103880371B CN 103880371 B CN103880371 B CN 103880371B CN 201410053804 A CN201410053804 A CN 201410053804A CN 103880371 B CN103880371 B CN 103880371B
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- sand mud
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000004576 sand Substances 0.000 title claims abstract 12
- 239000011499 joint compound Substances 0.000 claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 22
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 239000000292 calcium oxide Substances 0.000 claims abstract description 10
- 235000012255 calcium oxide Nutrition 0.000 claims abstract description 10
- 239000010881 fly ash Substances 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims abstract description 10
- 239000002893 slag Substances 0.000 claims abstract description 10
- 239000003973 paint Substances 0.000 claims abstract description 7
- 239000003513 alkali Substances 0.000 claims abstract description 6
- 239000004568 cement Substances 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 239000012190 activator Substances 0.000 claims abstract 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract 3
- 229910021487 silica fume Inorganic materials 0.000 claims abstract 3
- 239000010959 steel Substances 0.000 claims abstract 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 7
- 239000010440 gypsum Substances 0.000 claims description 6
- 229910052602 gypsum Inorganic materials 0.000 claims description 6
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims 3
- 239000007788 liquid Substances 0.000 claims 1
- 239000010446 mirabilite Substances 0.000 claims 1
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 claims 1
- 238000007711 solidification Methods 0.000 claims 1
- 230000008023 solidification Effects 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000004575 stone Substances 0.000 abstract description 2
- 239000008187 granular material Substances 0.000 abstract 1
- 241000985905 Candidatus Phytoplasma solani Species 0.000 description 24
- 238000005469 granulation Methods 0.000 description 11
- 230000003179 granulation Effects 0.000 description 11
- 238000012423 maintenance Methods 0.000 description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 6
- 239000002956 ash Substances 0.000 description 6
- 239000013049 sediment Substances 0.000 description 6
- -1 5 parts Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000003469 silicate cement Substances 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 239000004927 clay Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 230000008635 plant growth Effects 0.000 description 4
- 239000010430 carbonatite Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 101100002917 Caenorhabditis elegans ash-2 gene Proteins 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000004162 soil erosion Methods 0.000 description 1
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
本发明提供的一种利用内陆淤泥和近岸高砂泥制备人造生态骨料的方法，包括以下步骤：过滤淤泥和高砂泥，以除去粒径大于2mm的大颗粒；目将过滤后的淤泥和高砂泥自然风干；将淤泥、高砂泥、水泥、粉煤灰、生石灰、钢渣、硅灰、激发剂、早强剂和水混匀；将混合物于成球造粒机中造粒成球；将成品球自然养护并喷水养护后，再喷洒防水涂料或碱激发固化剂，自然养护即得。本发明利用淤泥和近岸高砂泥为主要原料制备了可应用于植生混凝土中的生态骨料，从而完全或部分代替了植生混凝土中的天然碎石、卵石，不仅有效的处理的淤泥，避免了淤泥带来的环境问题，而且将淤泥变为可利用的资源进行了有效的利用，具有良好的经济价值和社会价值。A kind of method that utilizes inland silt and coastal high-sand mud to prepare artificial ecological aggregate provided by the invention comprises the following steps: filter silt and high-sand mud, to remove the big particle that particle diameter is greater than 2mm; Purpose will filter the silt and The high-sand mud is naturally air-dried; mix the silt, high-sand mud, cement, fly ash, quicklime, steel slag, silica fume, activator, early strength agent and water; granulate the mixture into balls in a ball granulator; After the finished ball is naturally cured and sprayed with water, it is then sprayed with waterproof paint or alkali-activated curing agent, and it is ready after natural curing. The present invention uses silt and coastal high-sand mud as main raw materials to prepare ecological aggregates that can be applied to plant-growing concrete, thereby completely or partially replacing natural crushed stones and pebbles in plant-growing concrete, not only effectively treating silt, but also avoiding The environmental problems caused by silt, and the effective use of silt into usable resources has good economic value and social value.
Description
Technical field
The invention belongs to Material Field, particularly a kind of method utilizing inland mud and the clay standby artificial ecological aggregate of offshore STOL.
Background technology
Mud is the fine particles such as clay mineral under the effect of intergranular electrostatic force and molecular attraction, occurs to deposit the cotton-shaped and polynuclear plane formed in ocean or lakelands etc. slowly flowing water environment.Because the attention degree of China at the beginning of industrial and agricultural development to environment protection is inadequate; along with further developing of industrial or agricultural; cause a large amount of industrial or agricultural and sanitary sewage is unprocessed is directly discharged in rivers and lakes; water surrounding is caused to be destroyed; simultaneously due to the pollutent sedimentation in water body; pollutant load in mud increases, and makes mud seriously contaminated.Contaminated mud becomes endogenous pollution source, and at mud by disturbance situation, 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 the carrying out that China's rapid economic development, various construction project are like a raging fire, busy at putting up installationsly change original landforms and vegetation to a great extent, define much exposed slight slope and rock slope, ecological overbalance, easy generation soil erosion, landslide, caves in.Comparatively promising bulkhead tech is exactly concrete for plant growth bank protection at present.And the aggregate in the concrete for plant growth bulkhead tech of current institute investigation and application is mostly adopt 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 utilizing the clay standby artificial ecological aggregate of inland river, lake, fine sediment of reservoir and offshore STOL.
Technical scheme: a kind of method utilizing inland mud and the clay standby artificial ecological aggregate of offshore STOL provided by the invention, comprises the following steps:
(1) mud and STOL mud is filtered, to remove the macrobead that particle diameter is greater than 2mm; Object is the foreign material such as macrobead stone, branch and waterplant contained in removing mud
(2) by filter after mud and STOL mud natural air drying to water ratio be 5-20%;
(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 the finished ball natural curing of step (4) and after wet curing, then waterproof paint or alkali-activated carbonatite solidifying agent is sprayed,
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 mass ratio is (40-60): the Na of (40-60)
2sO
4and FeSO
4mixture.
Wherein, in step (5), described alkali-activated carbonatite solidifying agent is EvercreteDPS.
Beneficial effect: the present invention utilizes mud and offshore STOL mud to prepare the ecological aggregate that can be applicable in concrete for plant growth for main raw material, thus the natural rubble, the cobble that instead of wholly or in part in concrete for plant growth, the not only mud of effective process, avoid the environmental problem that mud brings, and mud is become available resource carried 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 obtains 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 applying.
Embodiment
Below in conjunction with specific embodiment, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
Embodiment 1
(1), getting inland river, lake, fine sediment of reservoir and offshore STOL mud, to remove the macrobead that particle diameter is greater than 2mm, is 5% by mud and STOL mud nature mummification to water ratio;
(2), get 25 parts, mud, 25 parts, STOL mud, 42.5 grades of silicate cements 18 parts, 18 parts, flyash, 5 parts, slag, silicon ash 5 parts, unslaked lime 2 parts, exciting agent 1.4 parts, hardening accelerator 0.6 part, 5 parts, water, put into stirrer for mixing together 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)
320 parts, 7 parts, saltcake, the Na of described hardening accelerator to be mass ratio be 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 during granulation).
(4), by the finished ball in step (3) place 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.Namely maintenance 1d makes ecological aggregate again.
Embodiment 2
(1), get inland river, lake, fine sediment of reservoir and offshore STOL mud, filtering to remove the macrobead that particle diameter is greater than 2mm is 8 parts by mud and STOL mud nature mummification to water ratio;
(2), get 28 parts, mud, 28 parts, STOL mud, 42.5 grades of silicate cements 17 parts, 17 parts, flyash, 5 parts, slag, silicon ash 1.5 parts, unslaked lime 2 parts, exciting agent 1.2 parts, hardening accelerator 0.3 part, 10 parts, water, put into stirrer for mixing together 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)
325 parts, 8 parts, saltcake, the Na of described hardening accelerator to be mass ratio be 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 during granulation).
(4), by the finished ball in step (3) place 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.Namely maintenance 3d makes ecological aggregate again.
Embodiment 3
(1), get inland river, lake, fine sediment of reservoir and offshore STOL mud, filtering to remove the macrobead that particle diameter is greater than 2mm is 8 parts by mud and STOL mud nature mummification to water ratio;
(2), get 24 parts, mud, 24 parts, STOL mud, 42.5 grades of silicate cements 19 parts, 17 parts, flyash, 7 parts, slag, silicon ash 2 parts, unslaked lime 5 parts, exciting agent 1.6 parts, hardening accelerator 0.4 part, 1 part, water, put into stirrer for mixing together 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)
325 parts, 8 parts, saltcake, the Na of described hardening accelerator to be mass ratio be 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 during granulation).
(4), by the finished ball in step (3) place 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.Namely maintenance 1d makes ecological aggregate again.
Embodiment 4
(1), get inland river, lake, fine sediment of reservoir and offshore STOL mud, filtering to remove the macrobead that particle diameter is greater than 2mm is 15 parts by mud and STOL mud nature mummification to water ratio;
(2), get 20 parts, mud, 35 parts, STOL mud, 42.5 grades of silicate cements 15 parts, 10 parts, flyash, 1 part, slag, silicon ash 1 part, unslaked lime 1 part, exciting agent 1 part, 3 parts, water, put into stirrer for mixing together even.
(3), the uniform mixture of step (2) is input to granulation balling-up in balling-up tablets press (spraying appropriate atomized water during granulation).Wherein, described exciting agent comprises the component of following weight part: phosphogypsum 40 parts, NaOH20 part, water glass (NaSiO
3) 20 parts, Al
2(SO
4)
315 parts, one or more in 5 parts, saltcake, the Na of described hardening accelerator to be mass ratio be 40:60
2sO
4and FeSO
4mixture.
(4), by the finished ball in step (3) place 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.Namely maintenance 5d makes ecological aggregate again.
Embodiment 5
(1), get inland river, lake, fine sediment of reservoir and offshore STOL mud, filtering to remove the macrobead that particle diameter is greater than 2mm is 20 parts by mud and STOL mud nature mummification to water ratio;
(2), get 35 parts, mud, that 20 parts, STOL mud, 42.5 grades of silicate cements 25 parts, 20 parts, flyash, 10 parts, slag, silicon ash 10 parts, unslaked lime 10 parts, exciting agent 10 parts, hardening accelerator 1 part, 8 parts, water add stirrer for mixing is even.Wherein, described exciting agent comprises the component of following weight part: desulfurated plaster 60 parts, NaOH10 part, water glass (NaSiO
3) 10 parts, Al
2(SO
4)
330 parts, one or more in 10 parts, saltcake, the Na of described hardening accelerator to be mass ratio be 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 during granulation).
(4), by the finished ball in step (3) place maintenance under field conditions (factors) in good time carry out wet curing, reach after curing age again at finished ball surface sprinkling alkali-activated carbonatite solidifying agent EvercreteDPS.Namely ecological aggregate is made.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410053804.8A CN103880371B (en) | 2014-02-18 | 2014-02-18 | A method for preparing artificial ecological aggregate using inland silt and near-shore high-sand mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410053804.8A CN103880371B (en) | 2014-02-18 | 2014-02-18 | A method for preparing artificial ecological aggregate using inland silt and near-shore high-sand mud |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103880371A CN103880371A (en) | 2014-06-25 |
| CN103880371B true CN103880371B (en) | 2015-12-09 |
Family
ID=50949543
Family Applications (1)
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|---|---|---|---|
| CN201410053804.8A Active CN103880371B (en) | 2014-02-18 | 2014-02-18 | A method for preparing artificial ecological aggregate using inland silt and near-shore high-sand mud |
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Families Citing this family (12)
| 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 |
| 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 |
| CN109354465B (en) * | 2018-12-10 | 2020-11-10 | 交通运输部天津水运工程科学研究所 | Artificial ecological stone 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 |
| 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 |
| CN113354376B (en) * | 2021-06-23 | 2022-08-09 | 武汉理工大学 | Phosphogypsum-based aggregate and preparation method thereof |
| CN116789383A (en) * | 2022-03-07 | 2023-09-22 | 广东清大同科环保技术有限公司 | Synthetic sand for building and preparation method thereof |
| CN116479828B (en) * | 2023-04-26 | 2025-09-05 | 大连海事大学 | A method for land reclamation by sand-mud interlayer blower filling using silt-regenerated spherical sand |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343172A (en) * | 2008-08-20 | 2009-01-14 | 厦门大学 | A kind of lightweight ceramsite using seabed silt as raw material and preparation method 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 |
-
2014
- 2014-02-18 CN CN201410053804.8A patent/CN103880371B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343172A (en) * | 2008-08-20 | 2009-01-14 | 厦门大学 | A kind of lightweight ceramsite using seabed silt as raw material and preparation method 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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