CN109942253A - A kind of energy-saving self-insulating concrete and production technology - Google Patents
A kind of energy-saving self-insulating concrete and production technology Download PDFInfo
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- CN109942253A CN109942253A CN201910280302.1A CN201910280302A CN109942253A CN 109942253 A CN109942253 A CN 109942253A CN 201910280302 A CN201910280302 A CN 201910280302A CN 109942253 A CN109942253 A CN 109942253A
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Abstract
The invention discloses a kind of energy-saving type heat-preserving concrete and production technologies, it is raw material using cement, flyash, miberal powder, polypropylene fibre, sand, light-weight aggregate, additive and water etc., each component coordinated, compression strength is high, it is not easy to crack, fire protecting performance is good, and has good insulation effect, energy conservation and environmental protection.Polypropylene fibre used in the present invention can be regenerating and modifying material, is modified using waste and old polypropylene material with polyamide, the toughness of further reinforced polypropylene fiber after modification, and then the indexs such as compression strength for improving concrete product.
Description
Technical field
The present invention relates to a kind of concrete, and in particular to a kind of energy-saving self-insulating concrete and production technology belong to and build
Build technical field.
Background technique
With the rapid development of the national economy, living standards of the people are continuously improved, energy also increasing to the consumption of the energy
Source shortage problem becomes increasingly conspicuous.China's building construction outer wall body material mainly include clay solid brick and hollow brick, porous brick,
The problems such as concrete segment etc., generally existing thermal coefficient is high, and heat-proof quality is poor does not meet country and wants to the energy conservation of building construction
It asks, usually also needs to do heat insulation layer in exterior surface of wall or inner surface being just able to satisfy related specification requirement.
Heat insulating work is a system engineering, and the material of main part of construction of buildings is concrete, in order to meet national demand,
Occur concrete thermal-insulating material in the market, raw material be mainly used as using wood sawdust, poly- light ball, kaolin, bauxite etc.,
These costs of material are high, and processing cost is also high.Moreover, the anti-fire screen that thermal insulation material usually without fire-proof function, needs to be arranged
The secondary construction and installation in scene are generallyd use from band, heat-preserving wall is formed by and is all easily opened in the presence of the complicated cumbersome and insulating layer of construction
The quality security problems such as split, seep water, falling off, it is also difficult to realize building heat preservation and structure same service life.Therefore concrete is kept the temperature
Research significance is great.
Summary of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of energy-saving self-insulating concrete and life
Production. art.
To achieve the above object, the present invention adopts the following technical solutions:
A kind of energy-saving self-insulating concrete is made of the component of following parts by weight: 180~220 parts of cement, fine coal
50~90 parts of ash, 100~130 parts of miberal powder, 5~10 parts of polypropylene fibre, 320~370 parts of sand, 350~450 parts of light-weight aggregate, outside
Add 3~5 parts of agent, 160~190 parts of water.
Preferably, the cement is the ordinary portland cement of label P.052.5, and the flyash is second class powered coal ash,
The sand is natural river sand, and partial size is 2~3mm, fineness modulus 2.5~3.0.
Preferably, the polypropylene fibre is regenerating and modifying material, and preparation method is as follows: waste and old polypropylene material is cut out
Cut, it is broken after the broken material that partial size is less than 5mm is made, wash with water and drain and be dried to obtain dry broken material；Then it will dry
Broken material and polyamide are mixed and made into melting charge with the high-temperature fusion of mass ratio 1:0.2~0.4；Finally melting charge spinneret is obtained
To polypropylene fibre.
It is further preferred that high-temperature fusion mixed method are as follows: by dry broken material and polyamide together Hybrid Heating
To melting, then ultrasonic wave disperses 2~3 hours under melting temperature, obtains melting charge.
It is further preferred that the specific method of spinneret is: melting charge is sent through circulating line to spinning machine, passes through metering pump meter
Amount, then enters spinning head through filter, connecting tube, goes out through spinneret hole intraocular pressure and forms stoste thread, and pressure is 5~10MPa,
Final solidified bath obtains fiber.
Still more preferably, the solvent in the stoste thread is spread to coagulating bath, and the coagulator in coagulating bath is to original
The infiltration of liquid thread is precipitated in coagulating bath so that stoste thread reaches critical concentration and obtains fiber.
Still more preferably, the coagulating bath is the water-bath of coagulator mass content 5~10%, and coagulator is
CaCl2·2H2And MgCl O,2·H2The mixture of O, the two mass ratio are 1:3~4.
Preferably, the length of the polypropylene fibre is 20~30mm, diameter >=0.05mm.
Preferably, any of the additive in white lime, aluminium sulfate, Portland clinker or triethanolamine
Kind.
Preferably, the light-weight aggregate includes thin light-weight aggregate and thick light-weight aggregate two parts, is by vermiculite, alkaline residue, desulfurization stone
Cream, kaolin and aluminium slag according to mass ratio 1:5~6:10~15:20~30:10~12 it is compound after crush, the former is crushed to
0.22~0.88mm, the latter are crushed to 5~8mm；The mass ratio of thin light-weight aggregate and thick light-weight aggregate is 1:1.2~1.3.
It is further preferred that compound specific method is: it is uniformly mixed after alkaline residue, aluminium slag are crushed with vermiculite, kaolin,
The water of 0.1~0.2 times of their total weights is added, be granulated, 100~110 DEG C drying 2~3 hours, then heat to 800~1000
DEG C roasting 20~30 minutes, be cooled to room temperature, pour into polyphenyl polymethylene polyisocyanates, impregnate 10~15 hours, mistake
Filter, 60~80 DEG C drying 10~12 hours.
Still more preferably, the dosage of polyphenyl polymethylene polyisocyanates is 50~60 times of alkaline residue weight.
A kind of production technology of above-mentioned energy-saving self-insulating concrete, the specific steps are as follows:
(1) cement, sand are uniformly mixed, obtain mixed powder；
(2) flyash and miberal powder are added to the water, activate, ball milling 3~5 hours, obtains the first slurry；
(3) mixed powder obtained by step (1) is poured into the first slurry obtained by step (2), stirs and evenly mixs, is subsequently added into poly-
Tacryl, light-weight aggregate and additive are uniformly mixing to obtain the second slurry；
(4) the injection mold of the second slurry obtained by step (3) is vibrated molding, maintenance obtains a kind of energy-saving self-insulating and mixes
Solidifying soil.
Preferably, in step (2), the specific method of activation is: it impregnates 20~30 minutes, 600~800W microwave treatment 3~
5 minutes, supersonic oscillations 1~2 minute, was then followed by 1000~1200W microwave treatment 1~2 minute while hot.
It is further preferred that supersonic oscillations frequency is 50~80kHz.
Preferably, in step (2), the modifying agent of 0.2~0.3 times of weight of flyash is added when ball milling.
It is further preferred that the modifying agent the preparation method is as follows: tetramethoxy-silicane to be first added to isometric nothing
It in water-ethanol, stirs and evenly mixs, obtains mixed liquor；Then fibrous aluminum carbonate basic ammonium is poured into mixed liquor, supersonic oscillations
20~30 minutes, 60~80 DEG C of dryings 12~24 hours up to the modifying agent；Wherein, tetramethoxy-silicane, producing fibrous basic formula
The mass ratio of aluminium carbonate ammonium is 1:2~3.
Still more preferably, preparation method bibliography " the producing fibrous basic formula carbon of the fibrous aluminum carbonate basic ammonium
The synthesis in solid state of sour aluminium ammonium and its crushing feature certainly of pyrolysis, Wu Zhihong etc., fine chemistry industry, 2005,22 (1), 9-11 ".
Preferably, in step (4), curing condition are as follows: conserve 20~22 under the conditions of normal temperature and pressure and relative humidity 95%RH
It.
Room temperature of the invention is defined as 20 DEG C according to domestic usually engineering temperature；Normal pressure refers to 101.325kPa.
Beneficial effects of the present invention:
The present invention is raw material system using cement, flyash, miberal powder, polypropylene fibre, sand, light-weight aggregate, additive and water etc.
A kind of energy-saving self-insulating concrete is obtained, each component coordinated, compression strength is high, and not easy to crack, fire protecting performance is good, and has
Good insulation effect, energy conservation and environmental protection.
Polypropylene fibre used in the present invention can be regenerating and modifying material, using waste and old polypropylene material with polyamide resin
Rouge is modified, the toughness of further reinforced polypropylene fiber after modification, and then compression strength for improving concrete product etc. refers to
Mark.
Light-weight aggregate includes thin light-weight aggregate and thick light-weight aggregate two parts, be by vermiculite, alkaline residue, desulfurized gypsum, kaolin and
It crushes and obtains after aluminium slag is compound.First alkaline residue, aluminium slag are uniformly mixed after crushing with vermiculite, kaolin when the compound preparation of light-weight aggregate,
It is granulated after water is added, dry, roasting is finally impregnated and post-processed with polyphenyl polymethylene polyisocyanates, so that each component
It is uniformly compound, the thermal insulation property of product is further increased, polyphenyl polymethylene polyisocyanates are conducive to the abundant of each component
Mixing, and improve the Combination with cement etc..
When prepared by the present invention, cement and sand are first mixed and made into mixed powder, flyash and miberal powder are added to the water activating ball
Mill obtains the first slurry；Then mixed powder is poured into the first slurry, polypropylene fibre, light-weight aggregate and additive is added and is made
Second slurry；The second slurry is finally injected into mold blanks and moulding and conserving.The activation of flyash and miberal powder can promote and other
The uniform mixing of component, moreover, modifying agent is added when ball milling, modifying agent is by tetramethoxy-silicane and fibrous aluminum carbonate basic
Ammonium is made, and helps further to improve the mixed performance with other components, and then intensity, heat preservation, fire prevention for improving product etc. is each
Item performance.
Specific embodiment
Below with reference to embodiment, the present invention will be further elaborated, it should explanation, following the description merely to
It explains the present invention, its content is not defined.
Embodiment 1:
A kind of energy-saving self-insulating concrete is made of the component of following parts by weight: 180 parts of cement, second level fine coal
50 parts, 100 parts of miberal powder, 5 parts of polypropylene fibre, 320 parts of sand, 350 parts of light-weight aggregate, 3 parts of additive, 160 parts of water of ash.
Wherein, the length of polypropylene fibre is 20mm, diameter >=0.05mm.
Additive is white lime.
Light-weight aggregate includes thin light-weight aggregate and thick light-weight aggregate two parts, be by vermiculite, alkaline residue, desulfurized gypsum, kaolin and
Aluminium slag according to mass ratio 1:5:10:20:10 it is compound after crush, the former is crushed to 0.22mm, and the latter is crushed to 5mm；It is thin light
Gathering materials with the mass ratio of thick light-weight aggregate is 1:1.2.Compound specific method is: by alkaline residue, aluminium slag crush after with vermiculite, kaolin
Be uniformly mixed, the water of 0.1 times of their total weights is added, be granulated, 100 DEG C drying 2 hours, then heat to 800 DEG C roastings 20 points
Clock is cooled to room temperature, and is poured into polyphenyl polymethylene polyisocyanates, impregnate 10 hours, filtering, 60 DEG C drying 10 hours be
It can.The dosage of polyphenyl polymethylene polyisocyanates is 50 times of alkaline residue weight.
A kind of production technology of above-mentioned energy-saving self-insulating concrete, the specific steps are as follows:
(1) cement, sand are uniformly mixed, obtain mixed powder；
(2) flyash and miberal powder are added to the water, activate, ball milling 3 hours, obtains the first slurry；
(3) mixed powder obtained by step (1) is poured into the first slurry obtained by step (2), stirs and evenly mixs, is subsequently added into poly-
Tacryl, light-weight aggregate and additive are uniformly mixing to obtain the second slurry；
(4) the injection mold of the second slurry obtained by step (3) is vibrated molding, maintenance obtains a kind of energy-saving self-insulating and mixes
Solidifying soil.
In step (2), the specific method of activation is: impregnating 20 minutes, 600W microwave treatment 3 minutes, ultrasonic wave shook while hot
It swings 1 minute, is then followed by 1000W microwave treatment 1 minute.Supersonic oscillations frequency is 50kHz.
In step (4), curing condition are as follows: conserved 20 days under the conditions of normal temperature and pressure and relative humidity 95%RH.
Embodiment 2:
A kind of energy-saving self-insulating concrete is made of the component of following parts by weight: 220 parts of cement, second level fine coal
90 parts, 130 parts of miberal powder, 10 parts of polypropylene fibre, 370 parts of sand, 450 parts of light-weight aggregate, 5 parts of additive, 190 parts of water of ash.
Wherein, the length of polypropylene fibre is 30mm, diameter >=0.05mm.
Additive is aluminium sulfate.
Light-weight aggregate includes thin light-weight aggregate and thick light-weight aggregate two parts, be by vermiculite, alkaline residue, desulfurized gypsum, kaolin and
Aluminium slag according to mass ratio 1:6:15:30:12 it is compound after crush, the former is crushed to 0.88mm, and the latter is crushed to 8mm；It is thin light
Gathering materials with the mass ratio of thick light-weight aggregate is 1:1.3.Compound specific method is: by alkaline residue, aluminium slag crush after with vermiculite, kaolin
Be uniformly mixed, the water of 0.2 times of their total weights is added, be granulated, 110 DEG C drying 3 hours, then heat to 1000 DEG C roastings 30 points
Clock is cooled to room temperature, and is poured into polyphenyl polymethylene polyisocyanates, impregnate 15 hours, filtering, 80 DEG C drying 12 hours be
It can.The dosage of polyphenyl polymethylene polyisocyanates is 60 times of alkaline residue weight.
A kind of production technology of above-mentioned energy-saving self-insulating concrete, the specific steps are as follows:
(1) cement, sand are uniformly mixed, obtain mixed powder；
(2) flyash and miberal powder are added to the water, activate, ball milling 5 hours, obtains the first slurry；
(3) mixed powder obtained by step (1) is poured into the first slurry obtained by step (2), stirs and evenly mixs, is subsequently added into poly-
Tacryl, light-weight aggregate and additive are uniformly mixing to obtain the second slurry；
(4) the injection mold of the second slurry obtained by step (3) is vibrated molding, maintenance obtains a kind of energy-saving self-insulating and mixes
Solidifying soil.
In step (2), the specific method of activation is: impregnating 30 minutes, 800W microwave treatment 5 minutes, ultrasonic wave shook while hot
It swings 2 minutes, is then followed by 1200W microwave treatment 2 minutes.Supersonic oscillations frequency is 80kHz.
In step (4), curing condition are as follows: conserved 22 days under the conditions of normal temperature and pressure and relative humidity 95%RH.
Embodiment 3:
A kind of energy-saving self-insulating concrete is made of the component of following parts by weight: 180 parts of cement, second level fine coal
90 parts, 100 parts of miberal powder, 10 parts of polypropylene fibre, 320 parts of sand, 450 parts of light-weight aggregate, 3 parts of additive, 190 parts of water of ash.
Wherein, polypropylene fibre is regenerating and modifying material, and preparation method is as follows: waste and old polypropylene material being cut, is broken
The broken material that partial size is less than 5mm is made afterwards, washes with water and drains and be dried to obtain dry broken material；Then will dry broken material with
Polyamide is mixed and made into melting charge with mass ratio 1:0.2 high-temperature fusion；Melting charge spinneret is finally obtained into polypropylene fibre.
High-temperature fusion mixed method are as follows: dry broken material and polyamide are mixed and heated to melting together, then in melting temperature
Lower ultrasonic wave disperses 3 hours, obtains melting charge.The specific method of spinneret is: melting charge is sent through circulating line to spinning machine, is passed through
Pump-metered is measured, then enters spinning head through filter, connecting tube, goes out to form stoste thread through spinneret hole intraocular pressure, pressure is
5MPa, final solidified bath obtain fiber.Solvent in stoste thread is spread to coagulating bath, and the coagulator in coagulating bath is thin to stoste
Stream infiltration is precipitated in coagulating bath so that stoste thread reaches critical concentration and obtains fiber.Coagulating bath is coagulator mass content
10% water-bath, coagulator CaCl2·2H2And MgCl O,2·H2The mixture of O, the two mass ratio are 1:3.Gained polypropylene
The length of fiber is 30mm, diameter >=0.05mm.
Additive is Portland clinker.
Light-weight aggregate includes thin light-weight aggregate and thick light-weight aggregate two parts, be by vermiculite, alkaline residue, desulfurized gypsum, kaolin and
Aluminium slag according to mass ratio 1:5:15:20:12 it is compound after crush, the former is crushed to 0.22mm, and the latter is crushed to 8mm；It is thin light
Gathering materials with the mass ratio of thick light-weight aggregate is 1:1.2.Compound specific method is: by alkaline residue, aluminium slag crush after with vermiculite, kaolin
Be uniformly mixed, the water of 0.2 times of their total weights is added, be granulated, 100 DEG C drying 3 hours, then heat to 800 DEG C roastings 30 points
Clock is cooled to room temperature, and is poured into polyphenyl polymethylene polyisocyanates, impregnate 10 hours, filtering, 80 DEG C drying 10 hours be
It can.The dosage of polyphenyl polymethylene polyisocyanates is 60 times of alkaline residue weight.
A kind of production technology of above-mentioned energy-saving self-insulating concrete, the specific steps are as follows:
(1) cement, sand are uniformly mixed, obtain mixed powder；
(2) flyash and miberal powder are added to the water, activate, ball milling 3 hours, obtains the first slurry；
(3) mixed powder obtained by step (1) is poured into the first slurry obtained by step (2), stirs and evenly mixs, is subsequently added into poly-
Tacryl, light-weight aggregate and additive are uniformly mixing to obtain the second slurry；
(4) the injection mold of the second slurry obtained by step (3) is vibrated molding, maintenance obtains a kind of energy-saving self-insulating and mixes
Solidifying soil.
In step (2), the specific method of activation is: impregnating 30 minutes, 600W microwave treatment 5 minutes, ultrasonic wave shook while hot
It swings 1 minute, is then followed by 1200W microwave treatment 1 minute.Supersonic oscillations frequency is 80kHz.
In step (2), the modifying agent of 0.2 times of weight of flyash is added when ball milling.Modifying agent the preparation method is as follows: first will
Tetramethoxy-silicane is added in isometric dehydrated alcohol, stirs and evenly mixs, and obtains mixed liquor；Then by fibrous aluminum carbonate basic
Ammonium pours into mixed liquor, and supersonic oscillations 30 minutes, 60 DEG C of dryings 24 hours up to the modifying agent；Wherein, tetramethoxy-silicane
Alkane, fibrous aluminum carbonate basic ammonium mass ratio be 1:2.
In step (4), curing condition are as follows: conserved 20 days under the conditions of normal temperature and pressure and relative humidity 95%RH.
Embodiment 4:
A kind of energy-saving self-insulating concrete is made of the component of following parts by weight: 220 parts of cement, second level fine coal
50 parts, 130 parts of miberal powder, 5 parts of polypropylene fibre, 370 parts of sand, 350 parts of light-weight aggregate, 5 parts of additive, 160 parts of water of ash.
Wherein, polypropylene fibre is regenerating and modifying material, and preparation method is as follows: waste and old polypropylene material being cut, is broken
The broken material that partial size is less than 5mm is made afterwards, washes with water and drains and be dried to obtain dry broken material；Then will dry broken material with
Polyamide is mixed and made into melting charge with mass ratio 1:0.4 high-temperature fusion；Melting charge spinneret is finally obtained into polypropylene fibre.
High-temperature fusion mixed method are as follows: dry broken material and polyamide are mixed and heated to melting together, then in melting temperature
Lower ultrasonic wave disperses 2 hours, obtains melting charge.The specific method of spinneret is: melting charge is sent through circulating line to spinning machine, is passed through
Pump-metered is measured, then enters spinning head through filter, connecting tube, goes out to form stoste thread through spinneret hole intraocular pressure, pressure is
10MPa, final solidified bath obtain fiber.Solvent in stoste thread is spread to coagulating bath, and the coagulator in coagulating bath is to stoste
Thread infiltration is precipitated in coagulating bath so that stoste thread reaches critical concentration and obtains fiber.Coagulating bath is that coagulator quality contains
The water-bath of amount 5%, coagulator CaCl2·2H2And MgCl O,2·H2The mixture of O, the two mass ratio are 1:4.Gained poly- third
The length of alkene fiber is 20mm, diameter >=0.05mm.
Additive is triethanolamine.
Light-weight aggregate includes thin light-weight aggregate and thick light-weight aggregate two parts, be by vermiculite, alkaline residue, desulfurized gypsum, kaolin and
Aluminium slag according to mass ratio 1:6:10:30:10 it is compound after crush, the former is crushed to 0.88mm, and the latter is crushed to 5mm；It is thin light
Gathering materials with the mass ratio of thick light-weight aggregate is 1:1.3.Compound specific method is: by alkaline residue, aluminium slag crush after with vermiculite, kaolin
Be uniformly mixed, the water of 0.1 times of their total weights is added, be granulated, 110 DEG C drying 2 hours, then heat to 1000 DEG C roastings 20 points
Clock is cooled to room temperature, and is poured into polyphenyl polymethylene polyisocyanates, impregnate 15 hours, filtering, 60 DEG C drying 12 hours be
It can.The dosage of polyphenyl polymethylene polyisocyanates is 50 times of alkaline residue weight.
A kind of production technology of above-mentioned energy-saving self-insulating concrete, the specific steps are as follows:
(1) cement, sand are uniformly mixed, obtain mixed powder；
(2) flyash and miberal powder are added to the water, activate, ball milling 5 hours, obtains the first slurry；
(3) mixed powder obtained by step (1) is poured into the first slurry obtained by step (2), stirs and evenly mixs, is subsequently added into poly-
Tacryl, light-weight aggregate and additive are uniformly mixing to obtain the second slurry；
(4) the injection mold of the second slurry obtained by step (3) is vibrated molding, maintenance obtains a kind of energy-saving self-insulating and mixes
Solidifying soil.
In step (2), the specific method of activation is: impregnating 20 minutes, 800W microwave treatment 3 minutes, ultrasonic wave shook while hot
It swings 2 minutes, is then followed by 1000W microwave treatment 2 minutes.Supersonic oscillations frequency is 50kHz.
In step (2), the modifying agent of 0.3 times of weight of flyash is added when ball milling.Modifying agent the preparation method is as follows: first will
Tetramethoxy-silicane is added in isometric dehydrated alcohol, stirs and evenly mixs, and obtains mixed liquor；Then by fibrous aluminum carbonate basic
Ammonium pours into mixed liquor, and supersonic oscillations 20 minutes, 80 DEG C of dryings 12 hours up to the modifying agent；Wherein, tetramethoxy-silicane
Alkane, fibrous aluminum carbonate basic ammonium mass ratio be 1:3.
In step (4), curing condition are as follows: conserved 22 days under the conditions of normal temperature and pressure and relative humidity 95%RH.
Embodiment 5:
A kind of energy-saving self-insulating concrete is made of the component of following parts by weight: 200 parts of cement, second level fine coal
70 parts, 120 parts of miberal powder, 8 parts of polypropylene fibre, 350 parts of sand, 400 parts of light-weight aggregate, 4 parts of additive, 170 parts of water of ash.
Wherein, polypropylene fibre is regenerating and modifying material, and preparation method is as follows: waste and old polypropylene material being cut, is broken
The broken material that partial size is less than 5mm is made afterwards, washes with water and drains and be dried to obtain dry broken material；Then will dry broken material with
Polyamide is mixed and made into melting charge with mass ratio 1:0.3 high-temperature fusion；Melting charge spinneret is finally obtained into polypropylene fibre.
High-temperature fusion mixed method are as follows: dry broken material and polyamide are mixed and heated to melting together, then in melting temperature
Lower ultrasonic wave disperses 2 hours, obtains melting charge.The specific method of spinneret is: melting charge is sent through circulating line to spinning machine, is passed through
Pump-metered is measured, then enters spinning head through filter, connecting tube, goes out to form stoste thread through spinneret hole intraocular pressure, pressure is
8MPa, final solidified bath obtain fiber.Solvent in stoste thread is spread to coagulating bath, and the coagulator in coagulating bath is thin to stoste
Stream infiltration is precipitated in coagulating bath so that stoste thread reaches critical concentration and obtains fiber.Coagulating bath is coagulator mass content
8% water-bath, coagulator CaCl2·2H2And MgCl O,2·H2The mixture of O, the two mass ratio are 1:3.5.Gained poly- third
The length of alkene fiber is 25mm, diameter >=0.05mm.
Additive is white lime.
Light-weight aggregate includes thin light-weight aggregate and thick light-weight aggregate two parts, be by vermiculite, alkaline residue, desulfurized gypsum, kaolin and
Aluminium slag according to mass ratio 1:5.5:12:25:11 it is compound after crush, the former is crushed to 0.5mm, and the latter is crushed to 7mm；It is thin light
Gathering materials with the mass ratio of thick light-weight aggregate is 1:1.25.Compound specific method is: by alkaline residue, aluminium slag crush after with vermiculite, kaolinite
Soil be uniformly mixed, the water of 0.15 times of their total weights is added, be granulated, 105 DEG C drying 3 hours, then heat to 900 DEG C roast 25
Minute, be cooled to room temperature, pour into polyphenyl polymethylene polyisocyanates, impregnate 12 hours, filtering, 70 DEG C drying 11 hours
?.The dosage of polyphenyl polymethylene polyisocyanates is 55 times of alkaline residue weight.
A kind of production technology of above-mentioned energy-saving self-insulating concrete, the specific steps are as follows:
(1) cement, sand are uniformly mixed, obtain mixed powder；
(2) flyash and miberal powder are added to the water, activate, ball milling 4 hours, obtains the first slurry；
(3) mixed powder obtained by step (1) is poured into the first slurry obtained by step (2), stirs and evenly mixs, is subsequently added into poly-
Tacryl, light-weight aggregate and additive are uniformly mixing to obtain the second slurry；
(4) the injection mold of the second slurry obtained by step (3) is vibrated molding, maintenance obtains a kind of energy-saving self-insulating and mixes
Solidifying soil.
In step (2), the specific method of activation is: impregnating 25 minutes, 700W microwave treatment 4 minutes, ultrasonic wave shook while hot
It swings 2 minutes, is then followed by 1100W microwave treatment 2 minutes.Supersonic oscillations frequency is 70kHz.
In step (2), the modifying agent of 0.25 times of weight of flyash is added when ball milling.Modifying agent the preparation method is as follows: first
Tetramethoxy-silicane is added in isometric dehydrated alcohol, is stirred and evenly mixed, obtains mixed liquor；Then by fibrous basic carbonate
Aluminium ammonium pours into mixed liquor, and supersonic oscillations 25 minutes, 70 DEG C of dryings 18 hours up to the modifying agent；Wherein, tetramethoxy
Silane, fibrous aluminum carbonate basic ammonium mass ratio be 1:2.5.
In step (4), curing condition are as follows: conserved 21 days under the conditions of normal temperature and pressure and relative humidity 95%RH.
Comparative example 1
A kind of energy-saving self-insulating concrete is made of the component of following parts by weight: 180 parts of cement, second level fine coal
50 parts, 100 parts of miberal powder, 5 parts of polypropylene fibre, 320 parts of sand, 350 parts of light-weight aggregate, 3 parts of additive, 160 parts of water of ash.
Wherein, the length of polypropylene fibre is 20mm, diameter >=0.05mm.
Additive is white lime.
Light-weight aggregate includes thin light-weight aggregate and thick light-weight aggregate two parts, be by vermiculite, alkaline residue, desulfurized gypsum, kaolin and
Aluminium slag according to mass ratio 1:5:10:20:10 it is compound after crush, the former is crushed to 0.22mm, and the latter is crushed to 5mm；It is thin light
Gathering materials with the mass ratio of thick light-weight aggregate is 1:1.2.Compound specific method is: by alkaline residue, aluminium slag crush after with vermiculite, kaolin
Be uniformly mixed, the water of 0.1 times of their total weights is added, be granulated, 100 DEG C drying 2 hours, then heat to 800 DEG C roastings 20 points
Clock is cooled to room temperature, filtering, 60 DEG C drying 10 hours.
A kind of production technology of above-mentioned energy-saving self-insulating concrete, the specific steps are as follows:
(1) cement, sand are uniformly mixed, obtain mixed powder；
(2) flyash and miberal powder are added to the water, activate, ball milling 3 hours, obtains the first slurry；
(3) mixed powder obtained by step (1) is poured into the first slurry obtained by step (2), stirs and evenly mixs, is subsequently added into poly-
Tacryl, light-weight aggregate and additive are uniformly mixing to obtain the second slurry；
(4) the injection mold of the second slurry obtained by step (3) is vibrated molding, maintenance obtains a kind of energy-saving self-insulating and mixes
Solidifying soil.
In step (2), the specific method of activation is: impregnating 20 minutes, 600W microwave treatment 3 minutes, ultrasonic wave shook while hot
It swings 1 minute, is then followed by 1000W microwave treatment 1 minute.Supersonic oscillations frequency is 50kHz.
In step (4), curing condition are as follows: conserved 20 days under the conditions of normal temperature and pressure and relative humidity 95%RH.
Comparative example 2
A kind of energy-saving self-insulating concrete is made of the component of following parts by weight: 180 parts of cement, second level fine coal
50 parts, 100 parts of miberal powder, 5 parts of polypropylene fibre, 320 parts of sand, 350 parts of light-weight aggregate, 3 parts of additive, 160 parts of water of ash.
Wherein, the length of polypropylene fibre is 20mm, diameter >=0.05mm.
Additive is white lime.
Light-weight aggregate includes thin light-weight aggregate and thick light-weight aggregate two parts, be by vermiculite, alkaline residue, desulfurized gypsum, kaolin and
Aluminium slag according to mass ratio 1:5:10:20:10 it is compound after crush, the former is crushed to 0.22mm, and the latter is crushed to 5mm；It is thin light
Gathering materials with the mass ratio of thick light-weight aggregate is 1:1.2.Compound specific method is: by alkaline residue, aluminium slag crush after with vermiculite, kaolin
Be uniformly mixed, the water of 0.1 times of their total weights is added, be granulated, 100 DEG C drying 2 hours, then heat to 800 DEG C roastings 20 points
Clock is cooled to room temperature, and is poured into polyphenyl polymethylene polyisocyanates, impregnate 10 hours, filtering, 60 DEG C drying 10 hours be
It can.The dosage of polyphenyl polymethylene polyisocyanates is 50 times of alkaline residue weight.
A kind of production technology of above-mentioned energy-saving self-insulating concrete, the specific steps are as follows:
(1) cement, sand are uniformly mixed, obtain mixed powder；
(2) flyash and miberal powder are added to the water, ball milling 3 hours, obtain the first slurry；
(3) mixed powder obtained by step (1) is poured into the first slurry obtained by step (2), stirs and evenly mixs, is subsequently added into poly-
Tacryl, light-weight aggregate and additive are uniformly mixing to obtain the second slurry；
(4) the injection mold of the second slurry obtained by step (3) is vibrated molding, maintenance obtains a kind of energy-saving self-insulating and mixes
Solidifying soil.
In step (4), curing condition are as follows: conserved 20 days under the conditions of normal temperature and pressure and relative humidity 95%RH.
Comparative example 3
A kind of energy-saving self-insulating concrete is made of the component of following parts by weight: 180 parts of cement, second level fine coal
50 parts, 100 parts of miberal powder, 5 parts of polypropylene fibre, 320 parts of sand, 350 parts of light-weight aggregate, 3 parts of additive, 160 parts of water of ash.
Wherein, the length of polypropylene fibre is 20mm, diameter >=0.05mm.
Additive is white lime.
Light-weight aggregate includes thin light-weight aggregate and thick light-weight aggregate two parts, be by vermiculite, alkaline residue, desulfurized gypsum, kaolin and
Aluminium slag according to mass ratio 1:5:10:20:10 it is compound after crush, the former is crushed to 0.22mm, and the latter is crushed to 5mm；It is thin light
Gathering materials with the mass ratio of thick light-weight aggregate is 1:1.2.Compound specific method is: by alkaline residue, aluminium slag crush after with vermiculite, kaolin
Be uniformly mixed, the water of 0.1 times of their total weights is added, be granulated, 100 DEG C drying 2 hours, then heat to 800 DEG C roastings 20 points
Clock is cooled to room temperature, and is poured into polyphenyl polymethylene polyisocyanates, impregnate 10 hours, filtering, 60 DEG C drying 10 hours be
It can.The dosage of polyphenyl polymethylene polyisocyanates is 50 times of alkaline residue weight.
The production technology of above-mentioned a kind of energy-saving self-insulating concrete, the specific steps are as follows: mix each component of formula ratio
Conjunction stirs evenly, and injection mold vibrates molding, conserves, obtains a kind of concrete.Curing condition are as follows: normal temperature and pressure and relative humidity 95%
It is conserved 20 days under the conditions of RH.
Test example
Dependence test has been carried out to Examples 1 to 5 and 1~3 gained concrete of comparative example, the results are shown in Table 1.
1. concrete performance examination of table
As shown in Table 1, polypropylene fibre is general polypropylene fibers in embodiment 1 and embodiment 2, and when ball milling, which is not added, to be changed
Property agent processing, the slightly inferior properties such as intensity, heat preservation, fire prevention of gained concrete.Comparative example 1 does not utilize more benzene when prepared by light-weight aggregate
Quito methylene polyisocyanates impregnation, comparative example 2 omit activation processing in step (2) in the preparation, and comparative example 3 is being made
Directly each material is obtained by mixing when standby, will affect the Combination of each component, so influence the intensity of products obtained therefrom, heat preservation and
Fire protecting performance.
Above-mentioned, although specific embodiments of the present invention have been described, not to the limit of the scope of the present invention
System, based on the technical solutions of the present invention, those skilled in the art do not need to make the creative labor can make it is each
Kind modification or deformation are still within protection scope of the present invention.
Claims (10)
1. a kind of energy-saving self-insulating concrete, which is characterized in that be made of the component of following parts by weight: cement 180~
220 parts, 50~90 parts of flyash, 100~130 parts of miberal powder, 5~10 parts of polypropylene fibre, 320~370 parts of sand, light-weight aggregate 350
~450 parts, 3~5 parts of additive, 160~190 parts of water.
2. a kind of energy-saving self-insulating concrete according to claim 1, which is characterized in that the polypropylene fibre is again
Raw modified material, preparation method are as follows: waste and old polypropylene material is cut, it is broken after the broken material that partial size is less than 5mm is made, use
Water cleaning drains and is dried to obtain dry broken material；Then by dry broken material and polyamide with mass ratio 1:0.2~0.4
High-temperature fusion is mixed and made into melting charge；Melting charge spinneret is finally obtained into polypropylene fibre.
3. a kind of energy-saving self-insulating concrete according to claim 1, which is characterized in that the length of the polypropylene fibre
Degree is 20~30mm, diameter >=0.05mm.
4. a kind of energy-saving self-insulating concrete according to claim 1, which is characterized in that the additive is selected from ripe stone
Any one of ash, aluminium sulfate, Portland clinker or triethanolamine.
5. a kind of energy-saving self-insulating concrete according to claim 1, which is characterized in that the light-weight aggregate includes thin light
Gather materials and thick light-weight aggregate two parts, is by vermiculite, alkaline residue, desulfurized gypsum, kaolin and aluminium slag according to mass ratio 1:5~6:10
It is crushed after~15:20~30:10~12 are compound, the former is crushed to 0.22~0.88mm, and the latter is crushed to 5~8mm；It is thin light
Gathering materials with the mass ratio of thick light-weight aggregate is 1:1.2~1.3.
6. a kind of energy-saving self-insulating concrete according to claim 5, which is characterized in that compound specific method is:
It is uniformly mixed after alkaline residue, aluminium slag are crushed with vermiculite, kaolin, the water of 0.1~0.2 times of their total weights is added, be granulated, 100
~110 DEG C drying 2~3 hours, then heat to 800~1000 DEG C roast 20~30 minutes, be cooled to room temperature, pour into more phenyl
In polymethylene polyisocyanates, impregnate 10~15 hours, filtering, 60~80 DEG C drying 10~12 hours.
7. a kind of production technology of energy-saving self-insulating concrete described in any one of claim 1~6, which is characterized in that tool
Steps are as follows for body:
(1) cement, sand are uniformly mixed, obtain mixed powder；
(2) flyash and miberal powder are added to the water, activate, ball milling 3~5 hours, obtains the first slurry；
(3) mixed powder obtained by step (1) is poured into the first slurry obtained by step (2), stirs and evenly mixs, is subsequently added into polypropylene
Fiber, light-weight aggregate and additive are uniformly mixing to obtain the second slurry；
(4) the injection mold of the second slurry obtained by step (3) is vibrated molding, conserves, obtains a kind of energy-saving self-insulating concrete.
8. production technology according to claim 7, which is characterized in that in step (2), the specific method of activation is: impregnating
20~30 minutes, 600~800W microwave treatment 3~5 minutes, supersonic oscillations 1~2 minute while hot, it is then followed by 1000~
1200W microwave treatment 1~2 minute.
9. production technology according to claim 7, which is characterized in that be added in step (2), when ball milling flyash 0.2~
The modifying agent of 0.3 times of weight.
10. production technology according to claim 9, which is characterized in that the modifying agent the preparation method is as follows: first by four
Methoxy silane is added in isometric dehydrated alcohol, stirs and evenly mixs, and obtains mixed liquor；Then by fibrous aluminum carbonate basic ammonium
It pours into mixed liquor, supersonic oscillations 20~30 minutes, 60~80 DEG C of dryings 12~24 hours up to the modifying agent；Wherein,
Tetramethoxy-silicane, fibrous aluminum carbonate basic ammonium mass ratio be 1:2~3.
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