CN103880371B - A kind of method utilizing inland mud and the clay standby artificial ecological aggregate of offshore STOL - Google Patents

A kind of method utilizing inland mud and the clay standby artificial ecological aggregate of offshore STOL Download PDF

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Publication number
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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mud
stol
parts
offshore
water
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CN103880371A (en
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祝建中
史海波
陈冠寰
胡志强
崔延松
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Hohai University HHU
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Hohai University HHU
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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

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  • 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

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: filter mud and STOL mud, to remove the macrobead that particle diameter is greater than 2mm; Order is by the mud after filtration and STOL mud natural air drying; Mud, STOL mud, cement, flyash, unslaked lime, slag, silicon ash, exciting agent, hardening accelerator and water are mixed; By mixture granulation balling-up in balling-up tablets press; By finished ball natural curing and after wet curing, then spray waterproof paint or alkali-activated carbonatite solidifying agent, natural curing and get final product.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, there is good economic worth and social value.

Description

A kind of method utilizing inland mud and the clay standby artificial ecological aggregate of offshore STOL
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)

1. utilize a method for inland mud and the clay standby artificial ecological aggregate of offshore STOL, it is characterized in that: comprise the following steps:
(1) mud and STOL mud is filtered, to remove the macrobead that particle diameter is greater than 2mm;
(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; Wherein, 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; Described exciting agent comprises the component of following weight part: gypsum, phosphogypsum or desulfurated plaster 40-60 part, NaOH10-20 part, water glass 10-20 part, Al 2(SO 4) 3one or more in 15-30 part, saltcake 5-10 part; Described hardening accelerator is mass ratio is (40-60): the Na of (40-60) 2sO 4and FeSO 4mixture;
(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.
2. a kind of method utilizing inland mud and the clay standby artificial ecological aggregate of offshore STOL according to claim 1, it is characterized in that: in step (5), described alkali-activated carbonatite solidifying agent is EvercreteDPS.
CN201410053804.8A 2014-02-18 2014-02-18 A kind of method utilizing inland mud and the clay standby artificial ecological aggregate of offshore STOL Active CN103880371B (en)

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CN107921492B (en) * 2015-02-17 2022-04-12 南洋理工大学 Method for producing lightweight materials
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

Citations (2)

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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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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

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