CN108558319A - A kind of permanent seal cooling eco-concrete - Google Patents
A kind of permanent seal cooling eco-concrete Download PDFInfo
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- CN108558319A CN108558319A CN201810537620.7A CN201810537620A CN108558319A CN 108558319 A CN108558319 A CN 108558319A CN 201810537620 A CN201810537620 A CN 201810537620A CN 108558319 A CN108558319 A CN 108558319A
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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
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/10—Burned or pyrolised refuse
- C04B18/101—Burned rice husks or other burned vegetable material
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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
- 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
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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
- C04B28/06—Aluminous cements
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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
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
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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
- 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
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- 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
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- Chemical & Material Sciences (AREA)
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- Inorganic Chemistry (AREA)
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- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a kind of permanent seal cooling eco-concretes, belong to building material technical field.The present invention dry, pulverize rice husk, and sieving obtains powdered rice hulls；By cellulase, pectase, deionized water is stirred, and obtains mixed enzyme solution, powdered rice hulls and mixed enzyme solution constant temperature are stirred, filters, enzymatic treatment powdered rice hulls is obtained, by aluminium chloride, sphingomylin, calcium chloride, enzymatic treatment powdered rice hulls mixing ultrasound are concentrated under reduced pressure, it is dry, pretreatment powdered rice hulls are obtained, pretreatment powdered rice hulls are stirred with sodium hydroxide solution, are filtered, washing, dry, charing, pyroreaction, calcining, obtains modified fine aggregate；By cement, modified fine aggregate, slag, water, water-reducing agent, silane coupling agent and azelon are stirred to get permanent seal cooling eco-concrete.
Description
Technical field
The invention discloses a kind of permanent seal cooling eco-concretes, belong to building material technical field.
Background technology
Ecology（Eco-）As soon as etymology refers to the survival condition of all living things in ancient Greek's word, briefly ecology, and
Between them and its relationship all linked with one another between environment.Nowadays, ecological to have penetrated into every field, people are common
" ecology " defines many niceness, such as healthy, beautiful, harmonious things can be modified titled with " ecology "." ecology is mixed
Solidifying soil " is exactly so a kind of health, beautiful, harmonious, maintains the special concrete of ecosystem balance development.Ecology is mixed
Solidifying soil is divided into two class of environmentally friendly eco-concrete and bio-compatible type eco-concrete, and bio-compatible type eco-concrete is again
It is divided into Plant Containing Kind of Ecological Soil, marine organisms Containing Kind of Ecological Soil, limnobios Containing Kind of Ecological Soil, net
Change water quality concrete.To reconciling the ecological balance, landscape of beautifying the environment, realizing the mankind and coordinating that there is positive effect to mix naturally
Solidifying soil.According to purposes, this kind of concrete can be divided into Plant Containing Kind of Ecological Soil, marine organisms Containing Kind of Ecological Soil,
Limnobios Containing Kind of Ecological Soil and the type eco-concrete etc. that purifies water.1, Plant Containing Kind of Ecological Soil utilizes
The performances such as ventilative, permeable at celluar concrete gap position, permeate nutrition needed for plant, this feature of growing plant root system is planted
The plants such as small grass, low shrub are planted, for afforesting and beautifying the environment for rivers and creeks bank protection.2, the compatible type coagulation of marine organisms, limnobios
Soil is to allow terrestrial and the attachment of aquatic toy to inhabit concave-convex not at it in waters such as river, lake and beach celluar concrete setting
In flat surface or continuous gap, by interaction or synbiosis, food chain is formed, is marine organisms and limnobios
Growth provides good condition, preserves the ecological environment.3, it is to utilize celluar concrete outer surface pair to purify water with eco-concrete
The absorption of various microorganisms generates indirect purification function by the effect of biosphere, is made into float structure or chinampa setting
It purifies water in the lake Ha Noi of eutrophication, keeps careless class, algal grown more in great numbers, by periodically tapping, utilize biological cycle
Process consumes the eutrophy ingredient of sewage, to preserve the ecological environment, and traditional eco-concrete mechanical property and water penetration
The problem of can not capable of further getting a promotion.
Therefore, how to improve traditional eco-concrete mechanical property and what water permeability can not further get a promotion lacks
Point is problem to be solved to obtain the raising of more high combination property.
Invention content
The present invention solves the technical problem of：It can not for traditional eco-concrete mechanical property and water permeability
The problem of further getting a promotion provides a kind of permanent seal cooling eco-concrete.
The technical solution adopted in the present invention is：
A kind of permanent seal cooling eco-concrete, is made of the raw material of following parts by weight：40~60 parts of cement, 60~80 parts of modifications
Fine aggregate, 60~80 parts of modified coarse aggregates, 10~20 parts of slags, 20~30 parts of water, 3~5 parts of water-reducing agents, 3~5 parts silane coupled
Agent, 10~20 parts of azelons；
The preparation process of the permanent seal cooling eco-concrete is：It is formed by raw material and weighs each component raw material, by cement, modified thin bone
Material, slag, water, water-reducing agent, silane coupling agent and azelon are stirred to get permanent seal cooling eco-concrete.
The cement is portland cement, any one in aluminate cement or sulfate cement.
The preparation process of the modified fine aggregate is：Rice husk dry, pulverize, cross the sieve of 80 mesh, obtain powdered rice hulls；By weight
Number meter, by 2~3 parts of cellulases, 2~3 parts of pectases, 10~20 parts of deionized waters are stirred, and obtain mixed enzyme solution, by rice
Shell powder and mixed enzyme solution in mass ratio 1：10~1：20 constant temperature are stirred, and filtering obtains enzymatic treatment powdered rice hulls, in parts by weight
Meter, by 10~20 parts of aluminium chloride, 10~20 parts of sphingomylins, 10~20 parts of calcium chloride, 10~20 parts of enzymatic treatment powdered rice hulls are mixed
Ultrasound is closed, is concentrated under reduced pressure, it is dry, pretreatment powdered rice hulls are obtained, by pretreatment powdered rice hulls and sodium hydroxide solution in mass ratio 1：10
~1：20 are stirred, and filter, and wash, dry, charing, pyroreaction, and calcining obtains modified fine aggregate.
The preparation process of the modified coarse aggregate is：By diatomite and hydrochloric acid in mass ratio 1：10~1：The stirring of 20 constant temperature is mixed
It closes, filtering obtains single treatment diatomite, by single treatment diatomite and dopamine solution in mass ratio 1：10~1：20 stirrings are mixed
It closes, filtering obtains after-treatment diatomite；It counts in parts by weight, by 10~20 parts of after-treatment diatomite, 8~10 parts of sepiolites,
5~60 parts of water ultrasonic disperses filter, dry, obtain modified coarse aggregate.
The slag is blast-furnace cinder, Iron-ore Slag, cinder, any one in Copper Slag or mineral wool.
Appointing in the water-reducing agent sodium lignin sulfonate, TH-928 poly carboxylic acid series water reducers or YZ-1 naphthalene series high-efficiency water-reducing agents
Meaning is a kind of.
The azelon is soybean fiber, any one in milk protein fiber or silkworm protein fiber.
The beneficial effects of the invention are as follows：
The present invention is by the modified fine aggregate of addition, and in preparation process, first, powdered rice hulls are impregnated by mixed enzyme solution, are improved
The permeance property of powdered rice hulls, being conducive to aluminium chloride and calcium chloride can be in fully penetrated to powdered rice hulls, and sphingomylin then wraps up
On powdered rice hulls surface, sphingomylin is because carry more negative electrical charge group in molecular structure, since like charges are mutually exclusive,
Therefore it is stably dispersed in system, is then passed through sodium hydroxide solution immersion, sphingomylin hydrolyzes under alkaline condition, can
Calcium ion in attraction system after so that its hydrolysate is adsorbed calcium ion, generates calcium hydroxy phosphate, is formed and increased under the high temperature conditions
Qiang Ti, meanwhile, the aluminium hydroxide dehydration being deposited in powdered rice hulls generates aluminium oxide, under pyroreaction, the titanium dioxide in rice husk
Silicon, carbonaceous are reacted with nitrogen, generate silicon nitride, form silicon nitride reinforcement, finally by calcining, by unreacted charcoal in system
Matter removes so that the porosity of system gets a promotion, so that the permeability rate of system gets a promotion.
Specific implementation mode
Rice husk is placed in baking oven, it is dry to constant weight under the conditions of temperature is 105~110 DEG C, dry rice husk is obtained, then
Rice husk is placed in pulverizer and is crushed, the sieve of 80 mesh is crossed, obtains powdered rice hulls；It counts in parts by weight, by 2~3 parts of cellulases, 2~3
Part pectase, 10~20 parts of deionized waters are placed in No. 1 beaker, and No. 1 beaker is placed in digital display and is tested the speed constant temperature blender with magnetic force
In, it is 30~36 DEG C in temperature, under the conditions of rotating speed is 300~500r/min, constant temperature is stirred 40~60min, obtains mixed enzyme
Liquid, by powdered rice hulls and mixed enzyme solution in mass ratio 1：10~1：20 are placed in No. 2 beakers, and No. 2 beakers are placed in digital display and are tested the speed
It is 30~36 DEG C in temperature in constant temperature blender with magnetic force, under the conditions of rotating speed is 300~500r/min, constant temperature is stirred 40~
60min, enzymatic treatment mixed liquor, then enzymatic treatment mixed liquor is filtered, enzymatic treatment powdered rice hulls are obtained, are counted in parts by weight, by 10~20
Part aluminium chloride, 10~20 parts of sphingomylins, 10~20 parts of calcium chloride, 10~20 parts of enzymatic treatment powdered rice hulls are placed in No. 3 beakers,
And No. 3 beakers are placed in ultrasonic disperse instrument, under the conditions of supersonic frequency is 55~75kHz, 40~60min of ultrasound is mixed, is obtained
Dispersion liquid is then placed in Rotary Evaporators by dispersion liquid, is 60~80 DEG C in temperature, pressure is 500~800kPa, and rotating speed is
Under the conditions of 50~80r/min, 40~60min is concentrated under reduced pressure, obtains concentrate, then concentrate is placed in baking oven, be in temperature
It is dry to obtain pretreatment powdered rice hulls to constant weight under the conditions of 105~110 DEG C, it is 20~30% by pretreatment powdered rice hulls and mass fraction
Sodium hydroxide solution in mass ratio 1：10~1：20 are placed in reaction kettle, under the conditions of rotating speed is 300~500r/min, stirring
40~60min is mixed, mixed serum is obtained, then mixed serum is filtered, obtains filter residue, the salt for being then 10~20% with mass fraction
Acid by residue washing to cleaning solution be neutrality, then the filter residue after washing is placed in baking oven, in temperature be 105~110 DEG C of items
It is dry to obtain dry filter residue, then dry filter residue is placed in tube furnace to constant weight under part, and with 60~90mL/min rates to stove
It is inside passed through nitrogen, under the conditions of temperature is 450~650 DEG C, 1~2h is carbonized, is then heated up with 10~15 DEG C/min rates, by stove
Interior temperature rises to 1300~1600 DEG C, under the conditions of temperature is 1300~1600 DEG C, after 2~3h of pyroreaction, obtains sintering feed, connects
It and sintering feed is placed in calcining furnace, under the conditions of temperature is 500~800 DEG C, calcines 3~5h, obtain modified fine aggregate；By diatom
The hydrochloric acid in mass ratio 1 that soil is 20~30% with mass fraction：10~1：20 are placed in No. 4 beakers, and No. 4 beakers are placed in number
The aobvious constant temperature blender with magnetic force that tests the speed is 40~60 DEG C in temperature, and under the conditions of rotating speed is 300~500r/min, constant temperature is stirred
30~50min obtains sour processing mixed liquor, then by acid processing mixed liquor filtering, single treatment diatomite is obtained, by single treatment silicon
Diatomaceous earth is 2.6mg/mL dopamine solutions in mass ratio 1 with mass concentration：10~1：20 are placed in No. 5 beakers, in rotating speed be 300
Under the conditions of~500r/min, after being stirred 30~50min, filtering obtains after-treatment diatomite；It counts in parts by weight, by 10
~20 parts of after-treatment diatomite, 8~10 parts of sepiolites, 5~60 parts of water are placed in No. 6 beakers, and No. 3 beakers are placed in ultrasound
In separating apparatus, under the conditions of supersonic frequency is 55~75kHz, 40~60min of ultrasound is mixed, obtains oscillation liquid, then liquid mistake will be vibrated
Filter, obtains filter cake, then filter cake is placed in baking oven, dry to constant weight under the conditions of temperature is 105~110 DEG C, must be modified thick bone
Material；It counts in parts by weight, by 40~60 parts of cement, 60~80 parts of modified fine aggregates, 60~80 parts of modified coarse aggregates, 10~20 parts
Slag, 20~30 parts of water, 3~5 parts of water-reducing agents, 3~5 parts of silane coupling agents, 10~20 parts of azelons are placed in batch mixer, in
Under the conditions of rotating speed is 100~200r/min, 30~50min is stirred to get permanent seal cooling eco-concrete.The cement is silicon
Any one in acid salt cement, aluminate cement or sulfate cement.The slag is blast-furnace cinder, Iron-ore Slag, cinder, copper
Any one in slag or mineral wool.The water-reducing agent sodium lignin sulfonate, TH-928 poly carboxylic acid series water reducers or YZ-1 naphthalenes
Any one in series high-efficiency water-reducing agent.The azelon is soybean fiber, and milk protein fiber or pupa albumen are fine
Any one in dimension.
Rice husk is placed in baking oven, it is dry to constant weight under the conditions of temperature is 110 DEG C, dry rice husk is obtained, then by rice husk
It is placed in pulverizer and crushes, cross the sieve of 80 mesh, obtain powdered rice hulls；It counts in parts by weight, by 3 parts of cellulases, 3 parts of pectases, 20
Part deionized water is placed in No. 1 beaker, and No. 1 beaker is placed in digital display and is tested the speed in constant temperature blender with magnetic force, in temperature be 36 DEG C,
Under the conditions of rotating speed is 500r/min, constant temperature is stirred 60min, obtains mixed enzyme solution, in mass ratio with mixed enzyme solution by powdered rice hulls
1：20 are placed in No. 2 beakers, and No. 2 beakers are placed in digital display and are tested the speed in constant temperature blender with magnetic force, are 36 DEG C in temperature, rotating speed is
Under the conditions of 500r/min, constant temperature is stirred 60min, enzymatic treatment mixed liquor, then enzymatic treatment mixed liquor is filtered, and obtains enzymatic treatment rice
Shell powder, is counted in parts by weight, and by 20 parts of aluminium chloride, 20 parts of sphingomylins, 20 parts of calcium chloride, 20 parts of enzymatic treatment powdered rice hulls are placed in
In No. 3 beakers, and No. 3 beakers are placed in ultrasonic disperse instrument, under the conditions of supersonic frequency is 75kHz, mix ultrasound 60min,
Dispersion liquid, then dispersion liquid is placed in Rotary Evaporators, in temperature be 80 DEG C, pressure 800kPa, rotating speed 80r/min
Under the conditions of, 60min is concentrated under reduced pressure, obtains concentrate, then concentrate is placed in baking oven, it is dry under the conditions of temperature is 110 DEG C
To constant weight, pretreatment powdered rice hulls are obtained, the sodium hydroxide solution in mass ratio 1 that powdered rice hulls and mass fraction are 30% will be pre-processed：20
It is placed in reaction kettle, under the conditions of rotating speed is 500r/min, is stirred 60min, obtains mixed serum, then by mixed serum mistake
Filter, obtains filter residue, and residue washing to cleaning solution is neutral by the hydrochloric acid for being then 20% with mass fraction, then by the filter after washing
Slag is placed in baking oven, dry to constant weight under the conditions of temperature is 110 DEG C, obtains dry filter residue, then dry filter residue is placed in tube furnace
In, and nitrogen is passed through into stove with 90mL/min rates, under the conditions of temperature is 650 DEG C, 2h is carbonized, then with 15 DEG C/min speed
Rate heats up, and in-furnace temperature is risen to 1600 DEG C, under the conditions of temperature is 1600 DEG C, after pyroreaction 3h, obtains sintering feed, then will
Sintering feed is placed in calcining furnace, under the conditions of temperature is 800 DEG C, is calcined 5h, is obtained modified fine aggregate；By diatomite and mass fraction
For 30% hydrochloric acid in mass ratio 1：20 are placed in No. 4 beakers, and No. 4 beakers are placed in digital display and are tested the speed constant temperature blender with magnetic force, in
Temperature is 60 DEG C, and under the conditions of rotating speed is 500r/min, constant temperature is stirred 50min, obtains sour processing mixed liquor, then handles acid
Mixed liquor filters, and obtains single treatment diatomite, and single treatment diatomite is pressed with mass concentration for 2.6mg/mL dopamine solutions
Mass ratio 1：20 are placed in No. 5 beakers, and under the conditions of rotating speed is 500r/min, after being stirred 50min, filtering obtains secondary place
Manage diatomite；It counts in parts by weight, by 20 parts of after-treatment diatomite, 10 parts of sepiolites, 60 parts of water are placed in No. 6 beakers, and
No. 3 beakers are placed in ultrasonic disperse instrument, under the conditions of supersonic frequency is 75kHz, mix ultrasound 60min, obtain oscillation liquid, then will
Liquid filtering is vibrated, filter cake is obtained, then filter cake is placed in baking oven, it is dry to constant weight under the conditions of temperature is 110 DEG C, obtain modification
Coarse aggregate；It counts in parts by weight, by 60 parts of cement, 80 parts of modified fine aggregates, 80 parts of modified coarse aggregates, 20 parts of slags, 30 parts of water,
5 parts of water-reducing agents, 5 parts of silane coupling agents, 20 parts of azelons are placed in batch mixer, under the conditions of rotating speed is 200r/min, stirring
50min is mixed to get permanent seal cooling eco-concrete.The cement is portland cement.The slag is blast-furnace cinder.It is described to subtract
Aqua sodium lignin sulfonate.The azelon is soybean fiber.
The hydrochloric acid in mass ratio 1 for being 30% by diatomite and mass fraction：20 are placed in No. 4 beakers, and No. 4 beakers are set
It testing the speed constant temperature blender with magnetic force in digital display, is 60 DEG C in temperature, under the conditions of rotating speed is 500r/min, constant temperature is stirred 50min,
Sour processing mixed liquor is obtained, then by acid processing mixed liquor filtering, single treatment diatomite is obtained, by single treatment diatomite and quality
A concentration of 2.6mg/mL dopamine solutions in mass ratio 1：20 are placed in No. 5 beakers, under the conditions of rotating speed is 500r/min, stirring
After mixing 50min, filtering obtains after-treatment diatomite；It counts in parts by weight, by 20 parts of after-treatment diatomite, 10 parts of Hai Pao
Stone, 60 parts of water are placed in No. 6 beakers, and No. 3 beakers are placed in ultrasonic disperse instrument, under the conditions of supersonic frequency is 75kHz, are mixed
Close ultrasound 60min, obtain oscillation liquid, then will oscillation liquid filtering, obtain filter cake, then filter cake be placed in baking oven, in temperature be 110 DEG C
Under the conditions of, it is dry to constant weight, obtain modified coarse aggregate；It counts in parts by weight, by 60 parts of cement, 80 parts of fine aggregates, 80 parts of modifications are thick
Aggregate, 20 parts of slags, 30 parts of water, 5 parts of water-reducing agents, 5 parts of silane coupling agents, 20 parts of azelons are placed in batch mixer, in rotating speed
Under the conditions of 200r/min, 50min is stirred to get permanent seal cooling eco-concrete.The cement is portland cement.It is described
Slag is blast-furnace cinder.The water-reducing agent sodium lignin sulfonate.The azelon is soybean fiber.
Rice husk is placed in baking oven, it is dry to constant weight under the conditions of temperature is 110 DEG C, dry rice husk is obtained, then by rice husk
It is placed in pulverizer and crushes, cross the sieve of 80 mesh, obtain powdered rice hulls；It counts in parts by weight, by 3 parts of cellulases, 3 parts of pectases, 20
Part deionized water is placed in No. 1 beaker, and No. 1 beaker is placed in digital display and is tested the speed in constant temperature blender with magnetic force, in temperature be 36 DEG C,
Under the conditions of rotating speed is 500r/min, constant temperature is stirred 60min, obtains mixed enzyme solution, in mass ratio with mixed enzyme solution by powdered rice hulls
1：20 are placed in No. 2 beakers, and No. 2 beakers are placed in digital display and are tested the speed in constant temperature blender with magnetic force, are 36 DEG C in temperature, rotating speed is
Under the conditions of 500r/min, constant temperature is stirred 60min, enzymatic treatment mixed liquor, then enzymatic treatment mixed liquor is filtered, and obtains enzymatic treatment rice
Shell powder, is counted in parts by weight, and by 20 parts of aluminium chloride, 20 parts of sphingomylins, 20 parts of calcium chloride, 20 parts of enzymatic treatment powdered rice hulls are placed in
In No. 3 beakers, and No. 3 beakers are placed in ultrasonic disperse instrument, under the conditions of supersonic frequency is 75kHz, mix ultrasound 60min,
Dispersion liquid, then dispersion liquid is placed in Rotary Evaporators, in temperature be 80 DEG C, pressure 800kPa, rotating speed 80r/min
Under the conditions of, 60min is concentrated under reduced pressure, obtains concentrate, then concentrate is placed in baking oven, it is dry under the conditions of temperature is 110 DEG C
To constant weight, pretreatment powdered rice hulls are obtained, the sodium hydroxide solution in mass ratio 1 that powdered rice hulls and mass fraction are 30% will be pre-processed：20
It is placed in reaction kettle, under the conditions of rotating speed is 500r/min, is stirred 60min, obtains mixed serum, then by mixed serum mistake
Filter, obtains filter residue, and residue washing to cleaning solution is neutral by the hydrochloric acid for being then 20% with mass fraction, then by the filter after washing
Slag is placed in baking oven, dry to constant weight under the conditions of temperature is 110 DEG C, obtains dry filter residue, then dry filter residue is placed in tube furnace
In, and nitrogen is passed through into stove with 90mL/min rates, under the conditions of temperature is 650 DEG C, 2h is carbonized, then with 15 DEG C/min speed
Rate heats up, and in-furnace temperature is risen to 1600 DEG C, under the conditions of temperature is 1600 DEG C, after pyroreaction 3h, obtains sintering feed, then will
Sintering feed is placed in calcining furnace, under the conditions of temperature is 800 DEG C, is calcined 5h, is obtained modified fine aggregate；By diatomite and mass fraction
For 30% hydrochloric acid in mass ratio 1：20 are placed in No. 4 beakers, and No. 4 beakers are placed in digital display and are tested the speed constant temperature blender with magnetic force, in
Temperature is 60 DEG C, and under the conditions of rotating speed is 500r/min, constant temperature is stirred 50min, obtains sour processing mixed liquor, then handles acid
Mixed liquor filters, and obtains single treatment diatomite, and single treatment diatomite is pressed with mass concentration for 2.6mg/mL dopamine solutions
Mass ratio 1：20 are placed in No. 5 beakers, and under the conditions of rotating speed is 500r/min, after being stirred 50min, filtering obtains secondary place
Manage diatomite；It counts in parts by weight, by 60 parts of cement, 80 parts of modified fine aggregates, 80 parts of coarse aggregates, 20 parts of slags, 30 parts of water, 5
Part water-reducing agent, 5 parts of silane coupling agents, 20 parts of azelons are placed in batch mixer, and under the conditions of rotating speed is 200r/min, stirring is mixed
50min is closed to get permanent seal cooling eco-concrete.The cement is portland cement.The slag is blast-furnace cinder.The diminishing
Agent sodium lignin sulfonate.The azelon is soybean fiber.
Comparative example：The eco-concrete of Guangdong construction material Co., Ltd production.
The permanent seal cooling eco-concrete and comparative example product of example 1 to 3 gained of example are subjected to performance detection, it is specific to detect
Method is as follows：
1. coefficient of permeability：Testing coefficient of permeability, steps are as follows：1. being molded the test specimen of 20cm thickness in cylindrical tube respectively, marks and support item
Part conserves；2. test specimen is taken out, before being tested, with the seam between plasticine sealed test piece and permeable instrument；3. record
Between, stop adding water, the timing from away from test specimen upper surface 160mm, until 0 after certain altitude is added water into permeable instrument.Thoroughly
The calculation formula of water coefficient（1）It is as follows：
V=H/t （1）
In formula：V is coefficient of permeability, mm/s；H is water level decreasing height, 160mm；T be water level from 160mm height be down to 0 when
Between, s；
2. compression strength：It is tested according to GB/T50081-2011；
3. flexural strength：It is tested according to GB/T50081-2011；
Specific testing result is as shown in table 1：
The 1 specific testing result of permanent seal cooling eco-concrete performance of table
| Detection project | Example 1 | Example 2 | Example 3 | Comparative example |
| Coefficient of permeability/（mm/s） | 5.78 | 3.43 | 2.67 | 1.35 |
| Compression strength/MPa | 25.4 | 22.3 | 20.5 | 15.7 |
| Flexural strength/MPa | 5.97 | 4.67 | 4.12 | 3.01 |
By 1 testing result of table it is found that technical solution of the present invention prepare permanent seal cooling eco-concrete have excellent water penetration and
The characteristics of mechanical property, has broad prospects in the development of building material technology industry.
Claims (7)
1. a kind of permanent seal cooling eco-concrete, it is characterised in that：It is made of the raw material of following parts by weight：40~60 parts of water
Mud, 60~80 parts of modified fine aggregates, 60~80 parts of modified coarse aggregates, 10~20 parts of slags, 20~30 parts of water, 3~5 parts of diminishings
Agent, 3~5 parts of silane coupling agents, 10~20 parts of azelons；
The preparation process of the permanent seal cooling eco-concrete is：It is formed by raw material and weighs each component raw material, by cement, modified thin bone
Material, slag, water, water-reducing agent, silane coupling agent and azelon are stirred to get permanent seal cooling eco-concrete.
2. a kind of permanent seal cooling eco-concrete according to claim 1, it is characterised in that：The cement is portland cement,
Any one in aluminate cement or sulfate cement.
3. a kind of permanent seal cooling eco-concrete according to claim 1, it is characterised in that：The preparation of the modified fine aggregate
Cheng Wei：Rice husk dry, pulverize, cross the sieve of 80 mesh, obtain powdered rice hulls；It counts in parts by weight, by 2~3 parts of cellulases, 2~3 parts
Pectase, 10~20 parts of deionized waters are stirred, and obtain mixed enzyme solution, by powdered rice hulls and mixed enzyme solution in mass ratio 1：10~1：
20 constant temperature are stirred, and filtering obtains enzymatic treatment powdered rice hulls, counts in parts by weight, by 10~20 parts of aluminium chloride, 10~20 parts of ethyl alcohol
Amine phosphatide, 10~20 parts of calcium chloride, 10~20 parts of enzymatic treatment powdered rice hulls mixing ultrasounds are concentrated under reduced pressure, dry, obtain pretreatment rice husk
Powder, by pretreatment powdered rice hulls and sodium hydroxide solution in mass ratio 1：10~1：20 are stirred, and filter, and wash, dry, charcoal
Change, pyroreaction, calcining obtains modified fine aggregate.
4. a kind of permanent seal cooling eco-concrete according to claim 1, it is characterised in that：The preparation of the modified coarse aggregate
Cheng Wei：By diatomite and hydrochloric acid in mass ratio 1：10~1：20 constant temperature are stirred, and filtering obtains single treatment diatomite, by one
Secondary processing diatomite and dopamine solution in mass ratio 1：10~1：20 are stirred, and filtering obtains after-treatment diatomite；By weight
Number meter is measured, by 10~20 parts of after-treatment diatomite, 8~10 parts of sepiolites, 5~60 parts of water ultrasonic disperses filter, dry,
Coarse aggregate must be modified.
5. a kind of permanent seal cooling eco-concrete according to claim 1, it is characterised in that：The slag is blast-furnace cinder, iron
Any one in slag, cinder, Copper Slag or mineral wool.
6. a kind of permanent seal cooling eco-concrete according to claim 1, it is characterised in that：The water-reducing agent lignin sulfonic acid
Any one in sodium, TH-928 poly carboxylic acid series water reducers or YZ-1 naphthalene series high-efficiency water-reducing agents.
7. a kind of permanent seal cooling eco-concrete according to claim 1, it is characterised in that：The azelon is soybean protein
Any one in fiber, milk protein fiber or silkworm protein fiber.
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| CN109280534A (en) * | 2018-09-28 | 2019-01-29 | 佛山齐安建筑科技有限公司 | A kind of preparation method of diatomite enhancing construction material sealant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107382221A (en) * | 2017-09-09 | 2017-11-24 | 常州亚环环保科技有限公司 | A kind of pervious concrete |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107382221A (en) * | 2017-09-09 | 2017-11-24 | 常州亚环环保科技有限公司 | A kind of pervious concrete |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109280534A (en) * | 2018-09-28 | 2019-01-29 | 佛山齐安建筑科技有限公司 | A kind of preparation method of diatomite enhancing construction material sealant |
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Application publication date: 20180921 |