CN108911598A - A kind of technique preparing alkali-activated material using agricultural wastes - Google Patents
A kind of technique preparing alkali-activated material using agricultural wastes Download PDFInfo
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- CN108911598A CN108911598A CN201810694090.7A CN201810694090A CN108911598A CN 108911598 A CN108911598 A CN 108911598A CN 201810694090 A CN201810694090 A CN 201810694090A CN 108911598 A CN108911598 A CN 108911598A
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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
- C04B28/006—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 mineral polymers, e.g. geopolymers of the Davidovits type
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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Abstract
The invention discloses a kind of techniques that alkali-activated material is prepared using agricultural wastes, include the following steps：(1) it pre-processes：According to parts by weight, bagasse, manioc waste, edible fungi residue and stalk are put into baking oven, and being dried to moisture content is 3%~8%, and speed, fineness reaches 50 mesh full by obtaining mixture；(2) preparation of alkali-activated material die trial：Mixture, blast-furnace cinder, kaolin, reinforcing agent and flyash are put into reactor, stirred, waterglass is added, 30~45min of ultrasonic activation is during which carried out with the power condition of 500~800W, injection molding after 5min is stirred, obtains die trial；(3) it conserves：Die trial is vibrated into 2min on glue sand plain bumper, to remove bubble, die trial is sealed, conserves to predetermined age, obtain alkali-activated material.While alkali-activated material prepared by the present invention has high-intensitive, production cost is reduced, stable product quality is controllable, has large market promotional value.
Description
【Technical field】
The present invention relates to the preparation fields of alkali-activated material, in particular to a kind of to prepare alkali-activated carbonatite material using agricultural wastes
The technique of material.
【Background technique】
Compared with conventional cement, alkali-activated material has performance more superior than cement, such as environmental-friendly, early-strong-fast-hard,
High temperature resistant, resistant to chemical etching, interface binding power is strong, durability is good etc..Meanwhile it is previous the study found that adding in flyash system
Add a certain proportion of slag, the porosity of system can be substantially reduced, obtains the more excellent product of various aspects of performance.However, alkali
Flyash and slag in excitation material are industry byproduct, and physicochemical properties are difficult to control, and different manufacturers produce institute
The ingredient of the grey body of system, there may be biggish difference, preparation-obtained alkali-activated material groups for particle diameter distribution, chemical activity etc.
At biggish difference is above also likely to be present, cause to be very different in performance.Therefore, it is sharp to control alkali to expand a kind of new raw material
The performance for sending out material is the new direction that the technology realizes that industrialization is expanded.
China is large agricultural country, and crop specie is more, cultivated area is wide, can all generate straw after crop harvesting every year
The a large amount of agricultural wastes such as stalk, rice straw.Traditionally, these residues are used as waste mostly, are handled in a manner of burning etc..No
But ecological environment is destroyed, and is resulted in waste of resources.China's agricultural wastes in 2014 are more than 900,000,000 tons, if all recycling benefits
With that can produce the regeneration goods and materials such as fertilizer, clean fuel, raw material of industry, the value of these goods and materials is at least up to 180,000,000,000
Member.Therefore, the recycling for carrying out agricultural wastes is increasingly subject to social extensive concern.
Therefore, a kind of preparation process for preparing alkali-activated material for basic material using agricultural wastes is studied, for promoting
Into agricultural wastes recycling, accelerate alkali-activated material development, have vast researching value.
【Summary of the invention】
It is an object of that present invention to provide a kind of technique for preparing alkali-activated material using agricultural wastes, the present invention is by adopting
It is raw material with agricultural wastes, by dry and pulverization process；After each material is mixed, in the technology of Sonication assisted treatment
Under the conditions of prepare alkali-activated material；Bubble removing finally is removed by vibration, after sealing die trial and maintenance, alkali-activated carbonatite material is made
Material.While alkali-activated material prepared by the present invention has high-intensitive, production cost is reduced, stable product quality is controllable, tool
There is large market promotional value.
To solve the above problems, the technical scheme adopted by the invention is that：It is a kind of to prepare alkali-activated carbonatite using agricultural wastes
The technique of material, includes the following steps：
(1) it pre-processes：According to parts by weight, by 100 portions of bagasse, 25~40 parts of manioc wastes, 10 parts of edible fungi residues and
50~80 parts of stalks are put into baking oven, and it is 3%~8% that moisture content is dried under conditions of 40~55 DEG C, are then placed in crushing
In machine, 30~45min is crushed with the speed of 500~1000r/min, fineness reaches 50 mesh full by obtaining mixture；
(2) preparation of alkali-activated material die trial：According to parts by weight, by 100 parts of mixtures, 60~90 parts of blast-furnace cinders,
25~40 parts of kaolin, 5 parts of reinforcing agents and 15~25 parts of flyash are put into reactor, after mixing evenly, it is slowly added to 100~
During which 150 parts of waterglass carry out 30~45min of ultrasonic activation with the power condition of 500~800W, stir injection molding after 5min,
Obtain die trial；
(3) it conserves：Die trial is vibrated into 2min on glue sand plain bumper, to remove the bubble in test block, then uses polychlorostyrene second
Alkene preservative film seals die trial, is placed in maintenance at 60 DEG C and obtains alkali-activated material to predetermined age.
In the present invention, as further explanation, reinforcing agent described in step (2) is prepared by the following method：By weight
Number meter, after mixing by 20~30 parts of rubber, 5~10 parts of polyethylene waxes and 2~5 parts of long-chain fatty acid esters, with 100~
5 parts of wax emulsions and 1 part of methyl-silicone oil are slowly added dropwise in 60~120min of mixing speed of 200r/min during stirring, then super
20~35min of ultrasonication is carried out under conditions of sonicated power is 500~800W, treatment temperature is 80~95 DEG C, most
After obtain reinforcing agent.
In the present invention, as further explanation, blast-furnace cinder density described in step (2) is 1.15~1.22g/m3。
In the present invention, as further explanation, in kaolin described in step (2) content of silica be 48%~
55%.
In the present invention, as further explanation, the content of activated alumina is 20% in flyash described in step (2)
~42%.
In the present invention, as further explanation, the condition of maintenance described in step (3) is 15~20d of wet curing.
The invention has the advantages that：
1. alkali-activated material prepared by the present invention there can be high compressive strength effect, also there is durability,
With large market promotional value.
2. the present invention can make full use of bagasse agricultural by-products, the production cost of wood-based plate is reduced, is agricultural by-products
Recycling new research direction is provided.
【Specific embodiment】
Embodiment 1：
1, early-stage preparations
The preparation of reinforcing agent：According to parts by weight, 20 parts of rubber, 5 parts of polyethylene waxes and 2 parts of long-chain fatty acid esters are mixed
After uniformly, with the mixing speed 60min of 100r/min, 5 parts of wax emulsions and 1 part of methyl-silicone oil are slowly added dropwise during stirring, then
Ultrasonication 20min is carried out under conditions of ultrasonication power is 500W, treatment temperature is 80 DEG C, finally obtains enhancing
Agent.
Above-mentioned prepared substance is used in the preparation process of following alkali-activated materials.
2, a kind of technique that alkali-activated material is prepared using agricultural wastes, is included the following steps：
(1) it pre-processes：According to parts by weight, by 100 portions of bagasse, 25 parts of manioc wastes, 10 parts of edible fungi residues and 50 parts
Stalk is put into baking oven, and it is 3% that moisture content is dried under conditions of 40 DEG C, is then placed in pulverizer, with 500r/min's
Speed crushes 30min, and fineness reaches 50 mesh full by obtaining mixture；
(2) preparation of alkali-activated material die trial：According to parts by weight, by 100 parts of mixtures, 60 parts of blast-furnace cinders, 25 parts
Kaolin, 5 parts of reinforcing agents and 15 parts of flyash are put into reactor, after mixing evenly, are slowly added to 100 parts of waterglass, during which
Ultrasonic activation 30min is carried out with the power condition of 500W, injection molding after 5min is stirred, obtains die trial；
The blast-furnace cinder density is 1.15g/m3；
The content of silica is 48% in the kaolin；
The content of activated alumina is 20% in the flyash；
(3) it conserves：Die trial is vibrated into 2min on glue sand plain bumper, to remove the bubble in test block, then uses polychlorostyrene second
Alkene preservative film seals die trial, is placed in wet curing 15d at 60 DEG C, obtains alkali-activated material.
Embodiment 2：
1, early-stage preparations
The preparation of reinforcing agent：According to parts by weight, 22 parts of rubber, 6 parts of polyethylene waxes and 4 parts of long-chain fatty acid esters are mixed
After uniformly, with the mixing speed 70min of 120r/min, 5 parts of wax emulsions and 1 part of methyl-silicone oil are slowly added dropwise during stirring, then
Ultrasonication 27min is carried out under conditions of ultrasonication power is 600W, treatment temperature is 85 DEG C, finally obtains enhancing
Agent.
Above-mentioned prepared substance is used in the preparation process of following alkali-activated materials.
2, a kind of technique that alkali-activated material is prepared using agricultural wastes, is included the following steps：
(1) it pre-processes：According to parts by weight, by 100 portions of bagasse, 30 parts of manioc wastes, 10 parts of edible fungi residues and 55 parts
Stalk is put into baking oven, and it is 4% that moisture content is dried under conditions of 47 DEG C, is then placed in pulverizer, with 600r/min's
Speed crushes 36min, and fineness reaches 50 mesh full by obtaining mixture；
(2) preparation of alkali-activated material die trial：According to parts by weight, by 100 parts of mixtures, 65 parts of blast-furnace cinders, 30 parts
Kaolin, 5 parts of reinforcing agents and 18 parts of flyash are put into reactor, after mixing evenly, are slowly added to 110 parts of waterglass, during which
Ultrasonic activation 32min is carried out with the power condition of 600W, injection molding after 5min is stirred, obtains die trial；
The blast-furnace cinder density is 1.18g/m3；
The content of silica is 50% in the kaolin；
The content of activated alumina is 29% in the flyash；
(3) it conserves：Die trial is vibrated into 2min on glue sand plain bumper, to remove the bubble in test block, then uses polychlorostyrene second
Alkene preservative film seals die trial, is placed in wet curing 17d at 60 DEG C, obtains alkali-activated material.
Embodiment 3：
1, early-stage preparations
The preparation of reinforcing agent：According to parts by weight, 27 parts of rubber, 8 parts of polyethylene waxes and 3 parts of long-chain fatty acid esters are mixed
After uniformly, with the mixing speed 90min of 130r/min, 5 parts of wax emulsions and 1 part of methyl-silicone oil are slowly added dropwise during stirring, then
Ultrasonication 30min is carried out under conditions of ultrasonication power is 600W, treatment temperature is 88 DEG C, finally obtains enhancing
Agent.
Above-mentioned prepared substance is used in the preparation process of following alkali-activated materials.
2, a kind of technique that alkali-activated material is prepared using agricultural wastes, is included the following steps：
(1) it pre-processes：According to parts by weight, by 100 portions of bagasse, 33 parts of manioc wastes, 10 parts of edible fungi residues and 65 parts
Stalk is put into baking oven, and it is 5% that moisture content is dried under conditions of 47 DEG C, is then placed in pulverizer, with 800r/min's
Speed crushes 39min, and fineness reaches 50 mesh full by obtaining mixture；
(2) preparation of alkali-activated material die trial：According to parts by weight, by 100 parts of mixtures, 85 parts of blast-furnace cinders, 35 parts
Kaolin, 5 parts of reinforcing agents and 20 parts of flyash are put into reactor, after mixing evenly, are slowly added to 140 parts of waterglass, during which
Ultrasonic activation 42min is carried out with the power condition of 700W, injection molding after 5min is stirred, obtains die trial；
The blast-furnace cinder density is 1.19g/m3；
The content of silica is 52% in the kaolin；
The content of activated alumina is 33% in the flyash；
(3) it conserves：Die trial is vibrated into 2min on glue sand plain bumper, to remove the bubble in test block, then uses polychlorostyrene second
Alkene preservative film seals die trial, is placed in wet curing 18d at 60 DEG C, obtains alkali-activated material.
Embodiment 4：
1, early-stage preparations
The preparation of reinforcing agent：According to parts by weight, 22 parts of rubber, 7 parts of polyethylene waxes and 3 parts of long-chain fatty acid esters are mixed
After uniformly, with the mixing speed 80min of 150r/min, 5 parts of wax emulsions and 1 part of methyl-silicone oil are slowly added dropwise during stirring, then
Ultrasonication 30min is carried out under conditions of ultrasonication power is 750W, treatment temperature is 86 DEG C, finally obtains enhancing
Agent.
Above-mentioned prepared substance is used in the preparation process of following alkali-activated materials.
2, a kind of technique that alkali-activated material is prepared using agricultural wastes, is included the following steps：
(1) it pre-processes：According to parts by weight, by 100 portions of bagasse, 34 parts of manioc wastes, 10 parts of edible fungi residues and 64 parts
Stalk is put into baking oven, and it is 7% that moisture content is dried under conditions of 51 DEG C, is then placed in pulverizer, with 700r/min's
Speed crushes 32min, and fineness reaches 50 mesh full by obtaining mixture；
(2) preparation of alkali-activated material die trial：According to parts by weight, by 100 parts of mixtures, 85 parts of blast-furnace cinders, 36 parts
Kaolin, 5 parts of reinforcing agents and 21 parts of flyash are put into reactor, after mixing evenly, are slowly added to 140 parts of waterglass, during which
Ultrasonic activation 40min is carried out with the power condition of 750W, injection molding after 5min is stirred, obtains die trial；
The blast-furnace cinder density is 1.20g/m3；
The content of silica is 53% in the kaolin；
The content of activated alumina is 38% in the flyash；
(3) it conserves：Die trial is vibrated into 2min on glue sand plain bumper, to remove the bubble in test block, then uses polychlorostyrene second
Alkene preservative film seals die trial, is placed in wet curing 19d at 60 DEG C, obtains alkali-activated material.
Embodiment 5：
1, early-stage preparations
The preparation of reinforcing agent：According to parts by weight, 27 parts of rubber, 8 parts of polyethylene waxes and 3 parts of long-chain fatty acid esters are mixed
After uniformly, with the mixing speed 100min of 140r/min, 5 parts of wax emulsions and 1 part of methyl-silicone oil are slowly added dropwise during stirring, then
Ultrasonication 31min is carried out under conditions of ultrasonication power is 700W, treatment temperature is 87 DEG C, finally obtains enhancing
Agent.
Above-mentioned prepared substance is used in the preparation process of following alkali-activated materials.
2, a kind of technique that alkali-activated material is prepared using agricultural wastes, is included the following steps：
(1) it pre-processes：According to parts by weight, by 100 portions of bagasse, 38 parts of manioc wastes, 10 parts of edible fungi residues and 76 parts
Stalk is put into baking oven, and it is 6% that moisture content is dried under conditions of 53 DEG C, is then placed in pulverizer, with 900r/min's
Speed crushes 42min, and fineness reaches 50 mesh full by obtaining mixture；
(2) preparation of alkali-activated material die trial：According to parts by weight, by 100 parts of mixtures, 85 parts of blast-furnace cinders, 33 parts
Kaolin, 5 parts of reinforcing agents and 24 parts of flyash are put into reactor, after mixing evenly, are slowly added to 130 parts of waterglass, during which
Ultrasonic activation 41min is carried out with the power condition of 550W, injection molding after 5min is stirred, obtains die trial；
The blast-furnace cinder density is 1.17g/m3；
The content of silica is 50% in the kaolin；
The content of activated alumina is 30% in the flyash；
(3) it conserves：Die trial is vibrated into 2min on glue sand plain bumper, to remove the bubble in test block, then uses polychlorostyrene second
Alkene preservative film seals die trial, is placed in wet curing 16d at 60 DEG C, obtains alkali-activated material.
Embodiment 6：
1, early-stage preparations
The preparation of reinforcing agent：According to parts by weight, 25 parts of rubber, 8 parts of polyethylene waxes and 3 parts of long-chain fatty acid esters are mixed
After uniformly, with the mixing speed 100min of 140r/min, 5 parts of wax emulsions and 1 part of methyl-silicone oil are slowly added dropwise during stirring, then
Ultrasonication 34min is carried out under conditions of ultrasonication power is 750W, treatment temperature is 89 DEG C, finally obtains enhancing
Agent.
Above-mentioned prepared substance is used in the preparation process of following alkali-activated materials.
2, a kind of technique that alkali-activated material is prepared using agricultural wastes, is included the following steps：
(1) it pre-processes：According to parts by weight, by 100 portions of bagasse, 31 parts of manioc wastes, 10 parts of edible fungi residues and 65 parts
Stalk is put into baking oven, and it is 5% that moisture content is dried under conditions of 43 DEG C, is then placed in pulverizer, with 900r/min's
Speed crushes 37min, and fineness reaches 50 mesh full by obtaining mixture；
(2) preparation of alkali-activated material die trial：According to parts by weight, by 100 parts of mixtures, 85 parts of blast-furnace cinders, 37 parts
Kaolin, 5 parts of reinforcing agents and 17 parts of flyash are put into reactor, after mixing evenly, are slowly added to 140 parts of waterglass, during which
Ultrasonic activation 39min is carried out with the power condition of 650W, injection molding after 5min is stirred, obtains die trial；
The blast-furnace cinder density is 1.18g/m3；
The content of silica is 52% in the kaolin；
The content of activated alumina is 38% in the flyash；
(3) it conserves：Die trial is vibrated into 2min on glue sand plain bumper, to remove the bubble in test block, then uses polychlorostyrene second
Alkene preservative film seals die trial, is placed in wet curing 16d at 60 DEG C, obtains alkali-activated material.
Embodiment 7：
1, early-stage preparations
The preparation of reinforcing agent：According to parts by weight, 30 parts of rubber, 10 parts of polyethylene waxes and 5 parts of long-chain fatty acid esters are mixed
After closing uniformly, with the mixing speed 120min of 200r/min, 5 parts of wax emulsions and 1 part of methyl-silicone oil are slowly added dropwise during stirring, so
Ultrasonication 35min is carried out under conditions of ultrasonication power is 800W, treatment temperature is 95 DEG C afterwards, finally obtains increasing
Strong agent.
Above-mentioned prepared substance is used in the preparation process of following alkali-activated materials.
2, a kind of technique that alkali-activated material is prepared using agricultural wastes, is included the following steps：
(1) it pre-processes：According to parts by weight, by 100 portions of bagasse, 40 parts of manioc wastes, 10 parts of edible fungi residues and 80 parts
Stalk is put into baking oven, and it is 8% that moisture content is dried under conditions of 55 DEG C, is then placed in pulverizer, with 1000r/min's
Speed crushes 45min, and fineness reaches 50 mesh full by obtaining mixture；
(2) preparation of alkali-activated material die trial：According to parts by weight, by 100 parts of mixtures, 90 parts of blast-furnace cinders, 40 parts
Kaolin, 5 parts of reinforcing agents and 25 parts of flyash are put into reactor, after mixing evenly, are slowly added to 150 parts of waterglass, during which
Ultrasonic activation 45min is carried out with the power condition of 800W, injection molding after 5min is stirred, obtains die trial；
The blast-furnace cinder density is 1.22g/m3；
The content of silica is 55% in the kaolin；
The content of activated alumina is 42% in the flyash；
(3) it conserves：Die trial is vibrated into 2min on glue sand plain bumper, to remove the bubble in test block, then uses polychlorostyrene second
Alkene preservative film seals die trial, is placed in wet curing 20d at 60 DEG C, obtains alkali-activated material.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the patents of the present invention.
Claims (6)
1. a kind of technique for preparing alkali-activated material using agricultural wastes, it is characterised in that：Include the following steps：
(1) it pre-processes：According to parts by weight, by 100 portions of bagasse, 25~40 parts of manioc wastes, 10 parts of edible fungi residues and 50~
80 parts of stalks are put into baking oven, and it is 3%~8% that moisture content is dried under conditions of 40~55 DEG C, are then placed in pulverizer,
30~45min is crushed with the speed of 500~1000r/min, and fineness reaches 50 mesh full by obtaining mixture；
(2) preparation of alkali-activated material die trial：According to parts by weight, by 100 parts of mixtures, 60~90 parts of blast-furnace cinders, 25~
40 parts of kaolin, 5 parts of reinforcing agents and 15~25 parts of flyash are put into reactor, after mixing evenly, are slowly added to 100~150
Part waterglass, during which carries out 30~45min of ultrasonic activation with the power condition of 500~800W, stirs injection molding after 5min, obtains
Die trial；
(3) it conserves：Die trial is vibrated into 2min on glue sand plain bumper, to remove the bubble in test block, is then protected with polyvinyl chloride
Fresh film seals die trial, is placed in maintenance at 60 DEG C and obtains alkali-activated material to predetermined age.
2. a kind of technique for preparing alkali-activated material using agricultural wastes according to claim 1, it is characterised in that：Step
Suddenly reinforcing agent described in (2) is prepared by the following method：According to parts by weight, by 20~30 parts of rubber, 5~10 parts of polyethylene waxes and
2~5 parts of long-chain fatty acid esters are after mixing, slow during stirring with 60~120min of mixing speed of 100~200r/min
5 parts of wax emulsions and 1 part of methyl-silicone oil are added dropwise, then ultrasonication power is 500~800W, treatment temperature is 80~95 DEG C
Under conditions of carry out 20~35min of ultrasonication, finally obtain reinforcing agent.
3. a kind of technique for preparing alkali-activated material using agricultural wastes according to claim 1, it is characterised in that：Step
Suddenly blast-furnace cinder density described in (2) is 1.15~1.22g/m3。
4. a kind of technique for preparing alkali-activated material using agricultural wastes according to claim 1, it is characterised in that：Step
Suddenly the content of silica is 48%~55% in kaolin described in (2).
5. a kind of technique for preparing alkali-activated material using agricultural wastes according to claim 1, it is characterised in that：Step
Suddenly the content of activated alumina is 20%~42% in flyash described in (2).
6. a kind of technique for preparing alkali-activated material using agricultural wastes according to claim 1, it is characterised in that：Step
Suddenly the condition of maintenance described in (3) is 15~20d of wet curing.
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