CN108947385A - A kind of concrete of high-strength corrosion-resisting - Google Patents
A kind of concrete of high-strength corrosion-resisting Download PDFInfo
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- CN108947385A CN108947385A CN201810697561.XA CN201810697561A CN108947385A CN 108947385 A CN108947385 A CN 108947385A CN 201810697561 A CN201810697561 A CN 201810697561A CN 108947385 A CN108947385 A CN 108947385A
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B18/023—Fired or melted materials
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses a kind of concrete of high-strength corrosion-resisting, it is related to technical field of concrete, is made of following component: 8-hydroxyquinoline sulfate modified coal ash, biomass corn stover powdered carbon, portland cement, yellow ground, isobutyl triethoxy silane, basalt fibre, monoalkoxy type titanate esters, hydroxyethyl cellulose, polycarboxylate water-reducer, water；The present invention passes through 8-hydroxyquinoline sulfate modified coal ash and biomass corn stover powdered carbon coordinative role, it can make particle " solution wadding " diffusion, improve concrete workability, it increases viscosity and pours density, concrete initial configuration is densified, the corrosion-resistant and durability of concrete is effectively improved.
Description
Technical field
The invention belongs to technical field of concrete, and in particular to a kind of concrete of high-strength corrosion-resisting.
Background technique
Concrete refers to the general designation of the cementing integral engineered composite material of aggregate by cementitious material.That usually says is mixed
One word of solidifying soil, which refers to, makees cementitious material, sand, masonry aggregate with cement；Cooperate by a certain percentage with water, it is agitated obtained by cement
Concrete, also referred to as normal concrete, it is widely used in civil engineering.Concrete is because its excellent physical and mechanical property is in building
Engineering field is widely applied, and is a kind of maximum construction material of current usage amount.But concrete is substantially a kind of
Porous material heterogeneous, under the corrosion function of the medium of carbon dioxide, water, chloride ion etc., unavoidably by it is external because
The influence of element and corrode so that concrete structure durability reduces, strength reduction, so as to cause building local failure, use
Service life greatly shortens.
Summary of the invention
The purpose of the present invention is being directed to existing problem, a kind of concrete of high-strength corrosion-resisting is provided.
The present invention is achieved by the following technical solutions:
A kind of concrete of high-strength corrosion-resisting, is made of following component by weight: the modified powder of 8-hydroxyquinoline sulfate
Coal ash 45-60, biomass corn stover powdered carbon 22-25, portland cement 225-230, yellow ground 182-188, three ethoxy of isobutyl group
Base silane 1.2-1.6, basalt fibre 3-5, monoalkoxy type titanate esters 0.3-0.7, hydroxyethyl cellulose 6-10, polycarboxylic acids subtract
Aqua 5-8, water 140-155.
Further, the biomass corn stover powdered carbon the preparation method comprises the following steps:
It is that mixed raw material carbonizes after copolymer-modified processing using pyrolysis oven by corn stalk powder and nano diatomite
Obtain biomass corn stover powdered carbon.
Further, the corn stalk powder and nano diatomite mass ratio are 40:1.
Further, the copolymer the preparation method comprises the following steps:
Ethyl orthosilicate, ethyl alcohol 4:1 in mass ratio are added in reaction kettle, with the stirring of 1200r/min revolving speed, are then added dropwise again
Deionized water, deionized water and ethyl orthosilicate molar ratio are 3: 1.2, then use hydrochloric acid adjusting reaction system pH for 4.5,
It is warming up to 80 DEG C after reacting 2 hours under 75 DEG C of constant temperature of water-bath, keeps the temperature 2 hours, obtains colorless and transparent stable colloidal sol, then drip again
Add organic silicon monomer and deionized water, organic silicon monomer and ethyl orthosilicate molar ratio are 4:1, deionized water and organosilicon list
Body molar ratio is 2:1, uses hydrochloric acid to adjust reaction system pH as 4.2, then adds the mistake of organic silicon monomer quality 0.1% again
Potassium sulfate, after mixing evenly, constant temperature 4 hours at 70 DEG C, vacuum distillation remove water and ethyl alcohol, obtain being total to for colorless and transparent stickiness
Polymers liquid.
Further, the copolymer-modified processing is heated to mix copolymer by 1:10 mass ratio with acetone
95 DEG C, with 800r/min revolving speed stirring 1 hour, modification liquid is obtained, by modification liquid and mixed raw material in the ratio of 400ml:150g
Mixing, then proceedes to be heated to 120 DEG C, with 250r/min revolving speed stirring 2 hours, adjusts the temperature to 50 DEG C, ultrasonication
Then 10min is filtered, cleaned using deionized water, drying to constant weight to get.
Further, the ultrasonic power is 200W.
Further, the 8-hydroxyquinoline sulfate modified coal ash preparation method are as follows:
It first uses mass fraction to impregnate 40min at normal temperature for 21% ethanol solution in flyash, then filters, after drying, then
15-20min is calcined at 400 DEG C, then cooled to room temperature, then flyash after cooling is added in reaction kettle, to
8 times of flyash quality of 8-hydroxyquinoline sulfate modification liquid is added in reaction kettle carries out impregnation, temperature in dipping process
At 70-75 DEG C, dip time is 3-4 hours for control, is handled when impregnating 1 hour using ultrasonic wave, ultrasonication is
Cyclical process, every 10 minutes ultrasonication 1min stop when dip time reaches 2.5 hours, continue constant temperature leaching
Stain, and be then filtered until dipping is completed with the stirring of 1800r/min revolving speed, use mass fraction molten for 21% ethyl alcohol
Liquid cleaning, drying to constant weight to get.
Further, the flyash dynamics is 80 mesh.
Further, the ultrasonic treatment frequency is 50kHz, power 500W.
Further, the 8-hydroxyquinoline sulfate modification liquid is made of following component by weight: 8- hydroxyl quinoline
Quinoline sulfate 5.5, urea 1.2, methacrylic sulfonic acids sodium 4, poly methyl silsesquioxane 0.6, aluminium triphosphate 2.8, go from
Sub- water 80.
The present invention have the advantage that compared with prior art the present invention by 8-hydroxyquinoline sulfate modified coal ash with
Biomass corn stover powdered carbon coordinative role can make particle " solution wadding " diffusion, improve concrete workability, increase viscosity
With pour density, make concrete initial configuration densify, effectively improve the corrosion-resistant and durability of concrete.8- hydroxyl quinoline
Quinoline sulfate modified coal ash can enhance the density and wearability of concrete, reduce the generation in inside concrete gap, simultaneously
The interface bonding state that rubber powder Yu cement and sandstone can be improved improves the compactness and intensity of concrete；Biomass is beautiful
Rice stalk powdered carbon has good corrosion-resistant raising, has microdilatancy effect, has compensating action for the contraction of concrete,
It can be avoided concrete to crack, improve the service life and corrosion resistance of concrete.Polycarboxylate water-reducer collapses identical
Under the conditions of degree of falling, mixed concrete water consumption can be efficiently reduced, reduces the ratio of mud, improves early strength of concrete.Due to
The reduction of water and the reduction of the ratio of mud, petrifying water mudstone hole significantly reduce, and the compactness of concrete increases, and increase coagulation
The compression strength and impermeability of soil.Meanwhile water-reducing agent can promote the early hydration speed of cement, compensate for flyash early water
Change slow-footed weakness.Internal structure compactness of the present invention is good, and barrier performance is good, has good corrosion resistance, uses the longevity
Life length.
Concrete charge percent of pass prepared by the present invention is substantially reduced, it can be seen that, concrete can present higher anti-
Chloride Attack ability, and the concrete charge for using conventional corn straw powder or the biomass carbon prepared in the prior art to obtain
Although percent of pass has certain reducing effect, effect is obviously not so good as the biomass corn stover powdered carbon in the present invention, this
By addition biomass corn stover powdered carbon, practical water-cement ratio, the concrete that can effectively reduce concrete can for invention
Be presented more C-S-H gels and the quantity of porlandite is reduced and the fine pore of concrete reduces, so as to hinder chlorine from
Son diffusion reduces concrete to the binding ability of chloride ion, reaches and improve concrete chlorine salt resistant erosion effect, by effective
The precenting chlorate corrosion performance of concrete is improved, and then can directly improve the durability of concrete.
Specific embodiment
Embodiment 1
A kind of concrete of high-strength corrosion-resisting, is made of following component by weight: the modified powder of 8-hydroxyquinoline sulfate
Coal ash 45-60, biomass corn stover powdered carbon 22-25, portland cement 225-230, yellow ground 182-188, three ethoxy of isobutyl group
Base silane 1.2-1.6, basalt fibre 3-5, monoalkoxy type titanate esters 0.3-0.7, hydroxyethyl cellulose 6-10, polycarboxylic acids subtract
Aqua 5-8, water 140-155.
Further, the biomass corn stover powdered carbon the preparation method comprises the following steps:
It is that mixed raw material carbonizes after copolymer-modified processing using pyrolysis oven by corn stalk powder and nano diatomite
Obtain biomass corn stover powdered carbon.
Further, the corn stalk powder and nano diatomite mass ratio are 40:1.
Further, the copolymer the preparation method comprises the following steps:
Ethyl orthosilicate, ethyl alcohol 4:1 in mass ratio are added in reaction kettle, with the stirring of 1200r/min revolving speed, are then added dropwise again
Deionized water, deionized water and ethyl orthosilicate molar ratio are 3: 1.2, then use hydrochloric acid adjusting reaction system pH for 4.5,
It is warming up to 80 DEG C after reacting 2 hours under 75 DEG C of constant temperature of water-bath, keeps the temperature 2 hours, obtains colorless and transparent stable colloidal sol, then drip again
Add organic silicon monomer and deionized water, organic silicon monomer and ethyl orthosilicate molar ratio are 4:1, deionized water and organosilicon list
Body molar ratio is 2:1, uses hydrochloric acid to adjust reaction system pH as 4.2, then adds the mistake of organic silicon monomer quality 0.1% again
Potassium sulfate, after mixing evenly, constant temperature 4 hours at 70 DEG C, vacuum distillation remove water and ethyl alcohol, obtain being total to for colorless and transparent stickiness
Polymers liquid.
Further, the copolymer-modified processing is heated to mix copolymer by 1:10 mass ratio with acetone
95 DEG C, with 800r/min revolving speed stirring 1 hour, modification liquid is obtained, by modification liquid and mixed raw material in the ratio of 400ml:150g
Mixing, then proceedes to be heated to 120 DEG C, with 250r/min revolving speed stirring 2 hours, adjusts the temperature to 50 DEG C, ultrasonication
Then 10min is filtered, cleaned using deionized water, drying to constant weight to get.
Further, the ultrasonic power is 200W.
Further, the 8-hydroxyquinoline sulfate modified coal ash preparation method are as follows:
It first uses mass fraction to impregnate 40min at normal temperature for 21% ethanol solution in flyash, then filters, after drying, then
15-20min is calcined at 400 DEG C, then cooled to room temperature, then flyash after cooling is added in reaction kettle, to
8 times of flyash quality of 8-hydroxyquinoline sulfate modification liquid is added in reaction kettle carries out impregnation, temperature in dipping process
At 70-75 DEG C, dip time is 3-4 hours for control, is handled when impregnating 1 hour using ultrasonic wave, ultrasonication is
Cyclical process, every 10 minutes ultrasonication 1min stop when dip time reaches 2.5 hours, continue constant temperature leaching
Stain, and be then filtered until dipping is completed with the stirring of 1800r/min revolving speed, use mass fraction molten for 21% ethyl alcohol
Liquid cleaning, drying to constant weight to get.
Further, the flyash dynamics is 80 mesh.
Further, the ultrasonic treatment frequency is 50kHz, power 500W.
Further, the 8-hydroxyquinoline sulfate modification liquid is made of following component by weight: 8- hydroxyl quinoline
Quinoline sulfate 5.5, urea 1.2, methacrylic sulfonic acids sodium 4, poly methyl silsesquioxane 0.6, aluminium triphosphate 2.8, go from
Sub- water 80.
Embodiment 2
A kind of concrete of high-strength corrosion-resisting, is made of following component by weight: the modified powder of 8-hydroxyquinoline sulfate
Coal ash 45-60, biomass corn stover powdered carbon 22-25, portland cement 225-230, yellow ground 182-188, three ethoxy of isobutyl group
Base silane 1.2-1.6, basalt fibre 3-5, monoalkoxy type titanate esters 0.3-0.7, hydroxyethyl cellulose 6-10, polycarboxylic acids subtract
Aqua 5-8, water 140-155.
Further, the biomass corn stover powdered carbon the preparation method comprises the following steps:
It is that mixed raw material carbonizes after copolymer-modified processing using pyrolysis oven by corn stalk powder and nano diatomite
Obtain biomass corn stover powdered carbon.
Further, the corn stalk powder and nano diatomite mass ratio are 40:1.
Further, the copolymer the preparation method comprises the following steps:
Ethyl orthosilicate, ethyl alcohol 4:1 in mass ratio are added in reaction kettle, with the stirring of 1200r/min revolving speed, are then added dropwise again
Deionized water, deionized water and ethyl orthosilicate molar ratio are 3: 1.2, then use hydrochloric acid adjusting reaction system pH for 4.5,
It is warming up to 80 DEG C after reacting 2 hours under 75 DEG C of constant temperature of water-bath, keeps the temperature 2 hours, obtains colorless and transparent stable colloidal sol, then drip again
Add organic silicon monomer and deionized water, organic silicon monomer and ethyl orthosilicate molar ratio are 4:1, deionized water and organosilicon list
Body molar ratio is 2:1, uses hydrochloric acid to adjust reaction system pH as 4.2, then adds the mistake of organic silicon monomer quality 0.1% again
Potassium sulfate, after mixing evenly, constant temperature 4 hours at 70 DEG C, vacuum distillation remove water and ethyl alcohol, obtain being total to for colorless and transparent stickiness
Polymers liquid.
Further, the copolymer-modified processing is heated to mix copolymer by 1:10 mass ratio with acetone
95 DEG C, with 800r/min revolving speed stirring 1 hour, modification liquid is obtained, by modification liquid and mixed raw material in the ratio of 400ml:150g
Mixing, then proceedes to be heated to 120 DEG C, with 250r/min revolving speed stirring 2 hours, adjusts the temperature to 50 DEG C, ultrasonication
Then 10min is filtered, cleaned using deionized water, drying to constant weight to get.
Further, the ultrasonic power is 200W.
Further, the 8-hydroxyquinoline sulfate modified coal ash preparation method are as follows:
It first uses mass fraction to impregnate 40min at normal temperature for 21% ethanol solution in flyash, then filters, after drying, then
15-20min is calcined at 400 DEG C, then cooled to room temperature, then flyash after cooling is added in reaction kettle, to
8 times of flyash quality of 8-hydroxyquinoline sulfate modification liquid is added in reaction kettle carries out impregnation, temperature in dipping process
At 70-75 DEG C, dip time is 3-4 hours for control, is handled when impregnating 1 hour using ultrasonic wave, ultrasonication is
Cyclical process, every 10 minutes ultrasonication 1min stop when dip time reaches 2.5 hours, continue constant temperature leaching
Stain, and be then filtered until dipping is completed with the stirring of 1800r/min revolving speed, use mass fraction molten for 21% ethyl alcohol
Liquid cleaning, drying to constant weight to get.
Further, the flyash dynamics is 80 mesh.
Further, the ultrasonic treatment frequency is 50kHz, power 500W.
Further, the 8-hydroxyquinoline sulfate modification liquid is made of following component by weight: 8- hydroxyl quinoline
Quinoline sulfate 5.5, urea 1.2, methacrylic sulfonic acids sodium 4, poly methyl silsesquioxane 0.6, aluminium triphosphate 2.8, go from
Sub- water 80.
Embodiment 3
A kind of concrete of high-strength corrosion-resisting, is made of following component by weight: the modified powder of 8-hydroxyquinoline sulfate
Coal ash 45-60, biomass corn stover powdered carbon 22-25, portland cement 225-230, yellow ground 182-188, three ethoxy of isobutyl group
Base silane 1.2-1.6, basalt fibre 3-5, monoalkoxy type titanate esters 0.3-0.7, hydroxyethyl cellulose 6-10, polycarboxylic acids subtract
Aqua 5-8, water 140-155.
Further, the biomass corn stover powdered carbon the preparation method comprises the following steps:
It is that mixed raw material carbonizes after copolymer-modified processing using pyrolysis oven by corn stalk powder and nano diatomite
Obtain biomass corn stover powdered carbon.
Further, the corn stalk powder and nano diatomite mass ratio are 40:1.
Further, the copolymer the preparation method comprises the following steps:
Ethyl orthosilicate, ethyl alcohol 4:1 in mass ratio are added in reaction kettle, with the stirring of 1200r/min revolving speed, are then added dropwise again
Deionized water, deionized water and ethyl orthosilicate molar ratio are 3: 1.2, then use hydrochloric acid adjusting reaction system pH for 4.5,
It is warming up to 80 DEG C after reacting 2 hours under 75 DEG C of constant temperature of water-bath, keeps the temperature 2 hours, obtains colorless and transparent stable colloidal sol, then drip again
Add organic silicon monomer and deionized water, organic silicon monomer and ethyl orthosilicate molar ratio are 4:1, deionized water and organosilicon list
Body molar ratio is 2:1, uses hydrochloric acid to adjust reaction system pH as 4.2, then adds the mistake of organic silicon monomer quality 0.1% again
Potassium sulfate, after mixing evenly, constant temperature 4 hours at 70 DEG C, vacuum distillation remove water and ethyl alcohol, obtain being total to for colorless and transparent stickiness
Polymers liquid.
Further, the copolymer-modified processing is heated to mix copolymer by 1:10 mass ratio with acetone
95 DEG C, with 800r/min revolving speed stirring 1 hour, modification liquid is obtained, by modification liquid and mixed raw material in the ratio of 400ml:150g
Mixing, then proceedes to be heated to 120 DEG C, with 250r/min revolving speed stirring 2 hours, adjusts the temperature to 50 DEG C, ultrasonication
Then 10min is filtered, cleaned using deionized water, drying to constant weight to get.
Further, the ultrasonic power is 200W.
Further, the 8-hydroxyquinoline sulfate modified coal ash preparation method are as follows:
It first uses mass fraction to impregnate 40min at normal temperature for 21% ethanol solution in flyash, then filters, after drying, then
15-20min is calcined at 400 DEG C, then cooled to room temperature, then flyash after cooling is added in reaction kettle, to
8 times of flyash quality of 8-hydroxyquinoline sulfate modification liquid is added in reaction kettle carries out impregnation, temperature in dipping process
At 70-75 DEG C, dip time is 3-4 hours for control, is handled when impregnating 1 hour using ultrasonic wave, ultrasonication is
Cyclical process, every 10 minutes ultrasonication 1min stop when dip time reaches 2.5 hours, continue constant temperature leaching
Stain, and be then filtered until dipping is completed with the stirring of 1800r/min revolving speed, use mass fraction molten for 21% ethyl alcohol
Liquid cleaning, drying to constant weight to get.
Further, the flyash dynamics is 80 mesh.
Further, the ultrasonic treatment frequency is 50kHz, power 500W.
Further, the 8-hydroxyquinoline sulfate modification liquid is made of following component by weight: 8- hydroxyl quinoline
Quinoline sulfate 5.5, urea 1.2, methacrylic sulfonic acids sodium 4, poly methyl silsesquioxane 0.6, aluminium triphosphate 2.8, go from
Sub- water 80.
Comparative example 1: it is distinguished with embodiment 1 and is only that the corn stover that biomass corn stover powdered carbon is replaced with to equivalent
Powder.
Comparative example 2: it is only that in biomass corn stover powdered carbon preparation process with the difference of embodiment 1 and changes without copolymer
Property processing.
Comparative example 3: it is only that 8-hydroxyquinoline sulfate modified coal ash replaces with application number with the difference of embodiment 1:
201710540266.9 the biomass carbon of preparation.
Comparative example 4: with embodiment 1 difference be only that 8-hydroxyquinoline sulfate modified coal ash is replaced with it is untreated
Flyash.
Comparative example 5: it is only that in 8-hydroxyquinoline sulfate modification liquid with the difference of embodiment 1 and does not add 8-hydroxyquinoline sulphur
Hydrochlorate.
Comparative example 6: it is only that 8-hydroxyquinoline sulfate modified coal ash replaces with application number with the difference of embodiment 1:
201310475211.6 the modified coal ash of the one-size of method preparation.
The concrete charge percent of pass that embodiment is prepared with comparative example is detected:
Table 1
Control group: it is only that with the difference of embodiment 1 and does not add biomass corn stover powdered carbon.
As can be seen from Table 1, concrete charge percent of pass prepared by the present invention is substantially reduced, it can be seen that, concrete energy
Higher corrosion resistance of chloride ion ability is enough presented, and conventional corn straw powder or the biomass carbon prepared in the prior art is used to obtain
Although the concrete charge percent of pass arrived has certain reducing effect, effect is obviously not so good as the jade of the biomass in the present invention
Rice stalk powdered carbon.
The concrete performance prepared to embodiment with comparative example detects:
Table 2
As can be seen from Table 2, concrete prepared by the present invention has good compression strength, anti-permeability performance, by adding 8- hydroxyl
Base quinoline sulfate modified coal ash can significantly improve the comprehensive performance of concrete of the present invention, especially compression strength, resist
Seep performance enhancing effects it is obvious, by addition biomass corn stover powdered carbon can by a small margin raising concrete pressure resistance
Degree.
Claims (10)
1. a kind of concrete of high-strength corrosion-resisting, which is characterized in that be made by weight of following component: 8-hydroxyquinoline
Sulfate modified coal ash 45-60, biomass corn stover powdered carbon 22-25, portland cement 225-230, yellow ground 182-188,
Isobutyl triethoxy silane 1.2-1.6, basalt fibre 3-5, monoalkoxy type titanate esters 0.3-0.7, hydroxyethyl cellulose
6-10, polycarboxylate water-reducer 5-8, water 140-155.
2. a kind of concrete of high-strength corrosion-resisting according to claim 1, which is characterized in that the biomass corn stalk
Stalk powdered carbon the preparation method comprises the following steps:
It is that mixed raw material carbonizes after copolymer-modified processing using pyrolysis oven by corn stalk powder and nano diatomite
Obtain biomass corn stover powdered carbon.
3. a kind of concrete of high-strength corrosion-resisting according to claim 2, which is characterized in that the corn stalk powder with
Nano diatomite mass ratio is 40:1.
4. a kind of concrete of high-strength corrosion-resisting according to claim 2, which is characterized in that the copolymer preparation side
Method are as follows:
Ethyl orthosilicate, ethyl alcohol 4:1 in mass ratio are added in reaction kettle, with the stirring of 1200r/min revolving speed, are then added dropwise again
Deionized water, deionized water and ethyl orthosilicate molar ratio are 3: 1.2, then use hydrochloric acid adjusting reaction system pH for 4.5,
It is warming up to 80 DEG C after reacting 2 hours under 75 DEG C of constant temperature of water-bath, keeps the temperature 2 hours, obtains colorless and transparent stable colloidal sol, then drip again
Add organic silicon monomer and deionized water, organic silicon monomer and ethyl orthosilicate molar ratio are 4:1, deionized water and organosilicon list
Body molar ratio is 2:1, uses hydrochloric acid to adjust reaction system pH as 4.2, then adds the mistake of organic silicon monomer quality 0.1% again
Potassium sulfate, after mixing evenly, constant temperature 4 hours at 70 DEG C, vacuum distillation remove water and ethyl alcohol, obtain being total to for colorless and transparent stickiness
Polymers liquid.
5. a kind of concrete of high-strength corrosion-resisting according to claim 2 or 4, which is characterized in that the copolymer changes
Property processing for copolymer is mixed with acetone by 1:10 mass ratio, be heated to 95 DEG C, stirred 1 hour with 800r/min revolving speed,
Modification liquid is obtained, modification liquid and mixed raw material are mixed in the ratio of 400ml:150g, then proceed to be heated to 120 DEG C, with
250r/min revolving speed stirs 2 hours, adjusts the temperature to 50 DEG C, then ultrasonication 10min is filtered, using deionization
Water cleaning, drying to constant weight to get.
6. a kind of concrete of high-strength corrosion-resisting according to claim 5, which is characterized in that the ultrasonic power is
200W。
7. a kind of concrete of high-strength corrosion-resisting according to claim 1, which is characterized in that the 8-hydroxyquinoline sulphur
Sulfonate modified flyash the preparation method comprises the following steps:
It first uses mass fraction to impregnate 40min at normal temperature for 21% ethanol solution in flyash, then filters, after drying, then
15-20min is calcined at 400 DEG C, then cooled to room temperature, then flyash after cooling is added in reaction kettle, to
8 times of flyash quality of 8-hydroxyquinoline sulfate modification liquid is added in reaction kettle carries out impregnation, temperature in dipping process
At 70-75 DEG C, dip time is 3-4 hours for control, is handled when impregnating 1 hour using ultrasonic wave, ultrasonication is
Cyclical process, every 10 minutes ultrasonication 1min stop when dip time reaches 2.5 hours, continue constant temperature leaching
Stain, and be then filtered until dipping is completed with the stirring of 1800r/min revolving speed, use mass fraction molten for 21% ethyl alcohol
Liquid cleaning, drying to constant weight to get.
8. a kind of concrete of high-strength corrosion-resisting according to claim 7, which is characterized in that the flyash dynamics is
80 mesh.
9. a kind of concrete of high-strength corrosion-resisting according to claim 7, which is characterized in that the ultrasonic treatment frequency
For 50kHz, power 500W.
10. a kind of concrete of high-strength corrosion-resisting according to claim 7, which is characterized in that the 8-hydroxyquinoline
Sulfate modification liquid is made of following component by weight: 8-hydroxyquinoline sulfate 5.5, urea 1.2, methacrylic acid sulphur
Sour sodium 4, poly methyl silsesquioxane 0.6, aluminium triphosphate 2.8, deionized water 80.
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| CN201810697561.XA CN108947385A (en) | 2018-06-29 | 2018-06-29 | A kind of concrete of high-strength corrosion-resisting |
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| CN201810697561.XA CN108947385A (en) | 2018-06-29 | 2018-06-29 | A kind of concrete of high-strength corrosion-resisting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114907047A (en) * | 2022-06-22 | 2022-08-16 | 宁波新力建材科技有限公司 | Ecological concrete additive and ecological concrete |
| CN115321842A (en) * | 2022-09-16 | 2022-11-11 | 四川轻化工大学 | Corrosion-resistant basalt fiber and preparation method thereof |
-
2018
- 2018-06-29 CN CN201810697561.XA patent/CN108947385A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114907047A (en) * | 2022-06-22 | 2022-08-16 | 宁波新力建材科技有限公司 | Ecological concrete additive and ecological concrete |
| CN114907047B (en) * | 2022-06-22 | 2022-11-18 | 宁波新力建材科技有限公司 | Ecological concrete additive and ecological concrete |
| CN115321842A (en) * | 2022-09-16 | 2022-11-11 | 四川轻化工大学 | Corrosion-resistant basalt fiber and preparation method thereof |
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