CN106746813A - A kind of hollow light skeletal material and preparation method thereof - Google Patents
A kind of hollow light skeletal material and preparation method thereof Download PDFInfo
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- CN106746813A CN106746813A CN201611167004.4A CN201611167004A CN106746813A CN 106746813 A CN106746813 A CN 106746813A CN 201611167004 A CN201611167004 A CN 201611167004A CN 106746813 A CN106746813 A CN 106746813A
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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
- C04B18/027—Lightweight materials
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- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of hollow aggregate and preparation method thereof, belong to cement concrete material technical field.On the one hand react to form hollow lumen by aluminium powder and water in the aggregate processing method, and the malleable lightweight shell of tool is made with the mixing of ground pumice, cement and solid gum；On the other hand using high-efficiency water-absorbing resin storage moisture, and the foamable reaction speed of aluminium powder and water is regulated and controled by soluble starch film；Make the aggregate apparent density of preparation low, it is easy to swim, shell mechanism is fine and close, crush index is low, and water resistant aggressivity is good, and the making for concrete floating bed can increase the wind and wave resistance performance of floating bed, the more conducively improvement of polluted-water.
Description
Technical field
The present invention relates to a kind of hollow light skeletal material and preparation method thereof, belong to cement concrete technical field.
Background technology
Body eutrophication is global water environmental problems, more than 2700, the existing lake of China, and the gross area is up to 9.1 ten thousand
km2.According to survey data and domestic and international evaluation Eutrophic criteria of lakes, during China is than more typical 37 Main Lakes, in
Auxotype and in an eutrophy type account for 55.8%, eutrophy type accounts for 14.7%, and weight eutrophy type accounts for 8.8%.China
More than 90% water pollution be because of the N in water body, P content is too high and caused by the eutrophication that causes, and N, P are then plants
The most basic essential nutrient element of growth.
Biological floating bed technology is by by the absorption organic pollutants function of screening, domestication stronger aquatic (terrestrial)
Plant, is implanted into prefabricated floating carrier planting groove, allows plant to be grown in the environment of similar soilless culture, and root system of plant is certainly
So extend and be suspended in water body, the organic pollution materials such as absorption, ammonia, nitrogen, the phosphorus absorbed in water, are fishes and shrimps, the elder brother in water body
Worm and microorganism provide the condition of existence and attachment, while discharging the compound for suppressing algal grown.In plant, animal, elder brother
Ambient water quality is purified under the collective effect of worm and microorganism, reach the purpose of repair and reconstruction water ecosystem.
But, the floating bed materials used the problems such as economy, environmental sensitivity and buoyancy are taken into consideration only at present be mainly it is many with bamboo pole,
Batten, macromolecular material etc., sustainable development ring can not be met at aspects such as rotproofness, fastness, wind and wave resistance, financial cost
Biological floating bed requirement under border.Concrete ecological floating bed is because of its good endurance, and wind and wave resistance is strong, low manufacture cost and be subject to extensively
Welcome, but current most of concrete ecological floating beds still suffer from low, wind and wave resistance difference of buoyancy difference, water resistant aggressivity etc.
Defect.
The content of the invention
For problems of the prior art, the invention provides a kind of hollow light skeletal material and preparation method thereof.The bone
In expecting for biological floating bed making, floating bed buoyancy difference, the defect of water resistant aggressivity difference can be effectively solved, dramatically increase floating bed
Swim ability, increased floating bed and resist boisterous ability, for the growth of animals and plants provides good environment, be conducive to polluting
The improvement of water body, is effectively improved the ecological balance.
The present invention uses following technical scheme：
A kind of preparation method of hollow light skeletal material, it is comprised the following steps：
(1) full water water-absorbing resin that weight fraction is 90.0~97.0% and 3.0~10.0% starch are stirred
And granulate in hemispherical, take particle diameter and deliver to coating machine through 0.5~2mm's of air atomizing even application between the particle of 8~12mm
Soluble starch film, obtains water-absorbing resin hemisphere；
(2) it is aluminium powder that weight fraction is 90.0~97.0% and 3.0~10.0% absolute ethyl alcohol and stirring is uniform and make
Grain is in hemisphere, takes particle of the particle diameter between 8~12mm, obtains aluminium powder hemisphere；
(3) water-absorbing resin hemisphere is united two into one with aluminium powder hemisphere, then by coating machine spheroid top layer wrap up 1~
The soluble starch film of 3mm, obtains the core that foams；
(4) by the core that foams at 30-60 second it is interior be soaked in ground pumice, 10.0 that weight fraction is 65.0~80.0%~
45-120 in the uniform mix slurry of 15.0% water, 5.0~15.0% cement and 5.0~10.0% solid gum composition
Second, pull out and drain, conserved 30-90 minutes at 45-90 DEG C, obtain hollow light skeletal material.
The fineness of the water-absorbing resin is 200 mesh sieves, tails over≤5%.
The starch is soluble starch.
The specific surface area of the aluminium powder is 350~380m2/Kg。
The specific surface area of the ground pumice is 350~380m2/ Kg, primary chemical composition is SiO265-80%, Al2O3
10-15%, loss on ignition 2-8%.
The cement is sulphate aluminium cement, and primary chemical composition is SiO29-12%, Al2O320-25% and CaO
22-58%.
The solid gum is pentalyn.
On the one hand react to form hollow lumen by aluminium powder and water in preparation method of the invention, and with ground pumice, cement
Make the malleable lightweight shell of tool with solid gum mixing；On the other hand using high-efficiency water-absorbing resin storage moisture, and by can
Soluble starch film regulates and controls the foamable reaction speed of aluminium powder and water.Aluminium powder can be big with the moisture that water-absorbing resin is provided in maintenance processes
Quantitative response forms air pocket, and float stone, water, cement and solid gum can form the light cement base slurry with certain ductility,
For closing the air pocket.The hollow light skeletal material of preparation can be adjusted according to requirements than float stone lightweight aggregate more light weight
Control its density.
The beneficial effects of the invention are as follows：
(1) hollow light skeletal material apparent density provided by the present invention is low, it is easy to swim；Shell mechanism is fine and close, crush index
Low, water resistant aggressivity is good, the making for concrete floating bed can increase the wind and wave resistance performance of floating bed, and more conducively polluted-water is controlled
Reason.
(2) raw material is easy to get, and process is simple, cost of manufacture is cheap, is easy to application.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail.
Embodiment 1
A kind of preparation method of hollow light skeletal material, it is comprised the following steps：
(1) 95% full water water-absorbing resin and 5% soluble starch are stirred and granulated in hemispherical, take particle diameter between
The particle of 8~12mm delivers to soluble starch film of the coating machine through air atomizing even application 1.8mm, obtains water-absorbing resin half
Ball；
(2) by aluminium powder that weight fraction is 92% and 8% absolute ethyl alcohol and stirring uniformly and to granulate be in hemisphere, particle diameter Jie is taken
In the particle of 8~12mm, aluminium powder hemisphere is obtained；
(3) after water-absorbing resin hemisphere and aluminium powder hemisphere uniting two into one, the soluble of 3mm is wrapped up by coating machine top layer and is formed sediment
Powder film, obtains the core that foams；
(4) core that will foam be soaked in 55 seconds ground pumice, 12% water, 8% cement that weight fraction is 75% and
110 seconds in the uniform mix slurry of 5% pentalyn, pull out and drain, conserved 40 minutes at 80 DEG C, obtain hollow
Lightweight aggregate.
The fineness of the water-absorbing resin is 200 mesh sieves, tails over≤5%.
The specific surface area of the aluminium powder is 350m2/Kg。
The specific surface area of the ground pumice is 350m2/ Kg, primary chemical composition is SiO265-80%, Al2O3 10-
15%, loss on ignition 2-8%.
The cement is sulphate aluminium cement, and primary chemical composition is SiO29-12%, Al2O320-25% and CaO
22-58%.
According to GB/T14685-2011《Cobble for building, rubble》The apparent density for measuring hollow light skeletal material is 280Kg/
m3, crush index is 22%, and water absorption rate is 3.48%.
Embodiment 2
(1) 92% full water water-absorbing resin and 8% soluble starch are stirred and granulated in hemispherical, take particle diameter between
The particle of 8~12mm delivers to soluble starch film of the coating machine through air atomizing even application 1mm, obtains water-absorbing resin hemisphere；
(2) by aluminium powder that weight fraction is 96% and 4% absolute ethyl alcohol and stirring uniformly and to granulate be in hemisphere, particle diameter Jie is taken
In the particle of 8~12mm, aluminium powder hemisphere is obtained；
(3) after water-absorbing resin hemisphere and aluminium powder hemisphere uniting two into one, the soluble of 2mm is wrapped up by coating machine top layer and is formed sediment
Powder film, obtains the core that foams；
(4) core that will foam be soaked in 40 seconds ground pumice, 10% water, 14% cement that weight fraction is 70% and
80 seconds in the uniform mix slurry of 6% pentalyn, pull out and drain, conserved 80 minutes at 50 DEG C, obtain hollow
Lightweight aggregate.
The fineness of the water-absorbing resin is 200 mesh sieves, tails over≤5%.
The specific surface area of the aluminium powder is 380m2/Kg。
The specific surface area of the ground pumice is 380m2/ Kg, primary chemical composition is SiO265-80%, Al2O3 10-
15%, loss on ignition 2-8%.
The cement is sulphate aluminium cement, and primary chemical composition is SiO29-12%, Al2O320-25% and CaO
22-58%.
According to GB/T14685-2011《Cobble for building, rubble》The apparent density for measuring hollow light skeletal material is 320Kg/
m3, crush index is 18%, and water absorption rate is 2.88%.
Reference examples：
Choose purchased from the common float stone of Hebei province Shangyi County Xing Ao float stones development corporation, Ltd. building material factory, according to GB/
T14685-2011《Cobble for building, rubble》The apparent density for measuring common pumice aggregate is 807Kg/m3, crush index is
17.9%, water absorption rate is 5.23%.
The hollow light skeletal material of present invention preparation can be seen that than floating by the performance testing index of embodiment 1-2 and reference examples
Stone lightweight aggregate more light weight, the making for concrete floating bed can increase the wind and wave resistance performance of floating bed, more conducively polluted-water
Administer.And can according to requirements regulate and control its density, raw material is cheap and easy to get, and preparation process is simple is suitable to promote the use of.
Claims (8)
1. a kind of preparation method of hollow light skeletal material, it is characterised in that it is comprised the following steps：
(1) full water water-absorbing resin that weight fraction is 90.0~97.0% and 3.0~10.0% starch are stirred and is made
Grain takes particle diameter and delivers to coating machine through the solvable of 0.5~2mm of air atomizing even application between the particle of 8~12mm in hemispherical
Property starch film, obtains water-absorbing resin hemisphere；
(2) by aluminium powder that weight fraction is 90.0~97.0% and 3.0~10.0% absolute ethyl alcohol and stirring uniformly and granulation is in
Hemisphere, takes particle of the particle diameter between 8~12mm, obtains aluminium powder hemisphere；
(3) water-absorbing resin hemisphere is united two into one with aluminium powder hemisphere, then wraps up 1~3mm's on spheroid top layer by coating machine
Soluble starch film, obtains the core that foams；
(4) foaming core was soaked in the ground pumice, 10.0~15.0% that weight fraction is 65.0~80.0% in 30-60 seconds
45-120 seconds in the uniform mix slurry of water, 5.0~15.0% cement and 5.0~10.0% solid gum composition, drip is pulled out
It is dry, conserved 30-90 minutes at 45-90 DEG C, obtain hollow light skeletal material.
2. the preparation method of hollow light skeletal material according to claim 1, it is characterised in that the fineness of the water-absorbing resin is
200 mesh sieves, tail over≤5%.
3. the preparation method of hollow light skeletal material according to claim 1, it is characterised in that the starch forms sediment for soluble
Powder.
4. the preparation method of hollow light skeletal material according to claim 1, it is characterised in that the specific surface area of the aluminium powder is situated between
In 350~380m2/Kg。
5. the preparation method of hollow light skeletal material according to claim 1, it is characterised in that the specific surface area of the ground pumice
It is 350~380m2/ Kg, primary chemical composition is SiO265-80%, Al2O310-15%, loss on ignition 2-8%.
6. the preparation method of hollow light skeletal material according to claim 1, it is characterised in that the cement is aluminium sulfate water
Mud, primary chemical composition is SiO29-12%, Al2O320-25% and CaO 22-58%.
7. the preparation method of hollow light skeletal material according to claim 1, it is characterised in that the solid gum is rosin season penta
Four alcohol esters.
8. the hollow light skeletal material prepared by the preparation method any one of a kind of claim 1-7.
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| CN201611167004.4A CN106746813B (en) | 2016-12-16 | 2016-12-16 | A kind of hollow light skeletal material and preparation method thereof |
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|---|---|---|---|
| CN201611167004.4A CN106746813B (en) | 2016-12-16 | 2016-12-16 | A kind of hollow light skeletal material and preparation method thereof |
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| CN106746813B CN106746813B (en) | 2018-07-27 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107399919A (en) * | 2017-08-18 | 2017-11-28 | 济南大学 | A kind of floating bed lightweight aggregate and preparation method thereof |
| CN107540257A (en) * | 2017-08-18 | 2018-01-05 | 济南大学 | A kind of floating bed and preparation method thereof |
| CN108892406A (en) * | 2018-07-03 | 2018-11-27 | 济南大学 | A kind of porous hollow lightweight aggregate and preparation method thereof |
| CN109053083A (en) * | 2018-09-26 | 2018-12-21 | 济南大学 | A kind of impervious mortar of high compact |
| CN109336441A (en) * | 2018-11-02 | 2019-02-15 | 嘉华特种水泥股份有限公司 | A kind of permeable aggregate and preparation method thereof for concrete |
| CN110204234A (en) * | 2019-04-24 | 2019-09-06 | 东南大学 | A kind of preparation method of the hollow bulky grain material of bivalve layer |
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| US20040157724A1 (en) * | 2003-02-07 | 2004-08-12 | Doza Douglas K. | Crack-resistant insulating dry refractory |
| CN101786845A (en) * | 2010-02-03 | 2010-07-28 | 四川省鑫沙矿渣微粉有限责任公司 | Ceramsite and production method thereof |
| CN104446543A (en) * | 2014-11-26 | 2015-03-25 | 武汉科技大学 | Lightweight micro closed cell magnesium-containing corundum refractory aggregate and preparation method thereof |
| CN104774023A (en) * | 2015-03-31 | 2015-07-15 | 北京大学包头创新研究院 | Lightweight ceramisite prepared from coal ashes and gasification slag as well as preparation method and application thereof |
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2016
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040157724A1 (en) * | 2003-02-07 | 2004-08-12 | Doza Douglas K. | Crack-resistant insulating dry refractory |
| CN101786845A (en) * | 2010-02-03 | 2010-07-28 | 四川省鑫沙矿渣微粉有限责任公司 | Ceramsite and production method thereof |
| CN104446543A (en) * | 2014-11-26 | 2015-03-25 | 武汉科技大学 | Lightweight micro closed cell magnesium-containing corundum refractory aggregate and preparation method thereof |
| CN104774023A (en) * | 2015-03-31 | 2015-07-15 | 北京大学包头创新研究院 | Lightweight ceramisite prepared from coal ashes and gasification slag as well as preparation method and application thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107399919A (en) * | 2017-08-18 | 2017-11-28 | 济南大学 | A kind of floating bed lightweight aggregate and preparation method thereof |
| CN107540257A (en) * | 2017-08-18 | 2018-01-05 | 济南大学 | A kind of floating bed and preparation method thereof |
| CN107540257B (en) * | 2017-08-18 | 2020-02-07 | 济南大学 | Floating bed and preparation method thereof |
| CN108892406A (en) * | 2018-07-03 | 2018-11-27 | 济南大学 | A kind of porous hollow lightweight aggregate and preparation method thereof |
| CN109053083A (en) * | 2018-09-26 | 2018-12-21 | 济南大学 | A kind of impervious mortar of high compact |
| CN109053083B (en) * | 2018-09-26 | 2020-07-28 | 济南大学 | High-compactness anti-permeability mortar |
| CN109336441A (en) * | 2018-11-02 | 2019-02-15 | 嘉华特种水泥股份有限公司 | A kind of permeable aggregate and preparation method thereof for concrete |
| CN110204234A (en) * | 2019-04-24 | 2019-09-06 | 东南大学 | A kind of preparation method of the hollow bulky grain material of bivalve layer |
| CN110204234B (en) * | 2019-04-24 | 2021-10-26 | 东南大学 | Preparation method of double-shell hollow large granule material |
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| Publication number | Publication date |
|---|---|
| CN106746813B (en) | 2018-07-27 |
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Granted publication date: 20180727 Termination date: 20211216 |