CN108467239A - A kind of complex cement slurry - Google Patents
A kind of complex cement slurry Download PDFInfo
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- CN108467239A CN108467239A CN201810306484.0A CN201810306484A CN108467239A CN 108467239 A CN108467239 A CN 108467239A CN 201810306484 A CN201810306484 A CN 201810306484A CN 108467239 A CN108467239 A CN 108467239A
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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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/022—Carbon
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/26—Carbonates
- C04B14/28—Carbonates of calcium
-
- 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
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses a kind of complex cement slurries, belong to building material technical field.The complex cement slurry that the present invention develops includes cement, modified lime mountain flour, modified charring rice husk, foam latex, water-reducing agent, urea liquid and urase solution, in configuration process, first cement, modified lime mountain flour, modified carbonization rice husk and water-reducing agent are stirred, sequentially add foam latex, urea liquid and urase solution, continue heating stirring mixing, obtain mixture slurry, it is continually fed into 45~60min of argon gas into mixture slurry while hot again, stratification, go skim-coat oil phase to get complex cement slurry.Gained complex cement slurry of the invention has excellent intensity.
Description
Technical field
The invention discloses a kind of complex cement slurries, belong to building material technical field.
Background technology
Lime stone main composition-calcium carbonate（CaCO3）.Lime and lime stone are to be largely used to construction material, industrial original
Material.Lime stone can directly be processed into building stones and be fired into quick lime.The quick lime CaO moisture absorptions add water just to become white lime, ripe
Lime main component is Ca (OH)2, calcium hydroxide can be referred to as, white lime is formulated at lime white, lime paste etc., is used as applying
Package material and brick and tile adhesive.
Thick, fine aggregate of the lime stone as cement producting material and concrete produce a large amount of in its recovery process
Aggregate chips and agstone, if agstone discarded, not only waste of resource, and increase carrying capacity of environment.Except slag and fine coal
Outside the materials such as ash, agstone also has been used as the mixing material of cement industry and the mineral admixture of concrete, and in technology, warp
Ji and ecology aspect have potential advantages.There are many regulations in the cement standard in area in the whole world can be in portland cement
Add a certain amount of lime stone.For example, in the CPJ45R and the compound Portland cements of CPJ55R of France's production, there are about 1/3 productions
Product only mix lime stone, and the addition content of lime stone, at most can be to 30% up to 10%5~25%.Germany begins in the 1980s
Numerous studies have been carried out to limestone portland cement.In Brazil, 2138/91 standards of EB provide to permit in Composite Cement on Silicate
Perhaps the agstone that maximum doping quantity is 10% is added.Japan is mixed from agstone is widely used in high fluidity at the end of the 20th century
Solidifying soil and high property spray concrete.Lime stone Portland cement is classified as a kind of independent type by European standard EN197 1
Cement type, maximum doping quantity is up to 35%.As it can be seen that some advanced countries are mixed using agstone as a kind of effective cement
It closes material and concrete admixture uses.Our existing cement standards also allow to add a certain amount of lime stone in cement, multiple
It closes in portland cement, limestone addition is 20~50%.Agstone in portland cement or concrete, can generate and its
The different effect of his mineral admixture, the rheological characteristic that can such as promote hydrated cementitious, improve early strength, improve fresh concrete
Deng.Agstone, using a kind of inert filler is generally considered to be, is mainly in view of its filling effect in cement concrete
It answers.Some researches show that：Agstone has hydration activity, is not only had an impact to the working performance of cement concrete, but also
Its hydrating capacity, mechanical property and endurance quality are all had an impact.For the bad problem of current conventional cement slurry intensity,
We also need further to study it.
Invention content
The present invention solves the technical problem of：For the bad problem of conventional cement slurry intensity, one kind is provided
Complex cement slurry.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of complex cement slurry, is made of the raw material of following parts by weight：
140~150 parts of cement
15~20 parts of modified lime mountain flour
Modified 8~10 parts of charring rice husk
15~20 parts of foam latex
8~10 parts of water-reducing agent
15~20 parts of urea liquid
20~30 parts of urase solution
The complex cement slurry configuration process is：
（1）It is formed by raw material and weighs each component；
（2）First cement, modified lime mountain flour, modified carbonization rice husk and water-reducing agent are stirred, sequentially add foam latex,
Urea liquid and urase solution continue heating stirring mixing, obtain mixture slurry, then be continually fed into argon gas into mixture slurry while hot
45~60min, stratification go skim-coat oil phase to get complex cement slurry.
The cement is 32.5 Portland cements, in 42.5 Portland cements or 52.5 Portland cements
Any one.
The modified lime mountain flour preparation process is：Agstone and dopamine solution are mixed after impregnating, filtering obtains pre-
Lime stone wet feed is handled, then by the liquor alumini chloridi that lime stone wet feed and mass fraction are 8~10% is pre-processed is 1 in mass ratio：
8~1：10 are stirred, and are used in combination ammonium hydroxide to adjust pH to 7.2~7.4, continue after being stirred to react, and filter, and washing and drying must change
Property agstone.
The modified charring rice husk preparation process is：Rice husk is crushed, charing and microwave treatment, charing rice must be pre-processed
Shell, then charring rice husk will be pre-processed, sulfuric acid solution and salpeter solution are 1 in mass ratio：8：After 10 mixing, thermostatic ultrasonic reaction,
Filter, washing and drying are then passed through, modified charring rice husk is obtained.
The foam latex preparation process is：It counts in parts by weight, takes 60~80 parts of water successively, 40~50 parts of n-hexanes, 8
~10 parts of N '-cetyls-N, N- dimethyl ethyl amidines, after mixing, are continually fed into 45~60min of carbon dioxide gas, must steep
Foam lotion.
The water-reducing agent is：In sodium lignin sulfonate, TH-928 poly carboxylic acid series water reducers or YZ-1 naphthalene series high-efficiency water-reducing agents
Any one.
The beneficial effects of the invention are as follows：
（1）The present invention to agstone by being modified processing, and in modifying process, the use of dopamine solution can effectively change
The surface nature for becoming agstone, improves the adsorption capacity for the aluminum hydroxide precipitate that it generates post precipitation, to make hydrogen
Aluminium oxide is effectively deposited in limestone surfaces recess and hole, to change the surface texture of lime stone, keeps it more regular,
To be conducive to be slided between particle in mixing process, the resistance that slurry is subject to when being deformed is made to reduce, meanwhile, table
The more regular lime stone powder specific-surface area detection in face reduces, and the water requirement of wet granulate reduces, under conditions of identical water, slurry
The intergranular opposite sliding of body is more easy, and the rheological characteristic of slurry is enable to be effectively improved, and in the follow-up process, aluminium hydroxide
Presence have fast hydration early period conducive to cement slurry, effectively improve the early strength of product, and aluminium hydroxide is in cement alkali
Property environment under dissolve after, so that the dopamine activity group of limestone surfaces is exposed again, and because system in urea can be in urase
Effect is lower to generate carbanion, and the calcium hydroxide that the carbanion and hydrated cementitious of generation generate combines, and is formed stable
Calcium carbonate crystal, and newly-generated calcium carbonate crystal is fixed on lime stone powder surface once generating by dopamine absorption, it is real
Now to effective filling of interiors of products hole, to the effective guarantee promotion of product later strength；
（2）The present invention makes foam latex by oneself by addition, and carbon dioxide gas is passed through in preparation process, in carbon dioxide gas
Body effect under, N '-cetyls-N, N- dimethyl ethyl amidine can with carbon dioxide reaction, to form stable foam latex,
The addition of foam latex is conducive to improve the mobility that cement slurry ties up in mixed process, so that each ingredient is effectively mixed, then
In continuous preparation process, argon gas can come out carbon dioxide replacement, to make N '-cetyls-N, N- dimethyl ethyl amidine structure
Change, realizes demulsification, so that oil phase is detached from cement slurry, avoid the presence of oil phase from causing cement later strength bad
It influences, and replaces the calcium hydroxide reaction that the carbon dioxide generated can be generated with hydrated cementitious, generate indissoluble calcium carbonate crystal, it is real
Now to the further promotion effect of product strength.
Specific implementation mode
It is 1 in mass ratio by the dopamine solution that agstone and mass concentration that grain size is 8~100 μm are 2~4g/L：
20~1：In 25 No. 1 sinks of input, after being stirred 20~30min with glass bar, it is standing and soak for 2~5h, filters, must pre-process
Lime stone wet feed, then it is 1 in mass ratio that gained, which is pre-processed the liquor alumini chloridi that lime stone wet feed and mass fraction are 8~10%,：
8~1：10 are added in three-necked flask, are used in combination ammonium hydroxide to adjust material pH in three-necked flask and are moved into 7.2~7.4, then by three-necked flask
Digital display tests the speed constant temperature blender with magnetic force, is 35~40 DEG C in temperature, under the conditions of rotating speed is 300~500r/min, it is stirred to react 1~
After 3h, filtering obtains filter cake, and filter cake is washed with deionized 3~5 times, then the filter cake after washing is transferred in vacuum drying chamber,
It is dried to constant weight under the conditions of being 55~60 DEG C in temperature, then ground, obtains modified lime mountain flour；Rice husk is poured into pulverizer,
60~80 mesh sieve is smashed it through, obtains rice husk particle, then rice husk particle is transferred in retort, with 60~80mL/min rates to stove
It is inside passed through argon gas, under argon gas guard mode, under the conditions of temperature is 650~780 DEG C, heat preservation 2~4h of charing is cooled to the furnace
Room temperature, discharging obtain charring rice husk, then by gained charring rice husk under the conditions of microwave power is 300~500W, and microwave treatment 45~
60min obtains pretreatment charring rice husk, then is 1 in mass ratio：8：10 will pre-process charring rice husk, the sulfuric acid that mass fraction is 98%
It it is 65~70 DEG C in temperature, supersonic frequency is 55~60kHz conditions after the salpeter solution mixing that solution and mass fraction are 15%
Under, after thermostatic ultrasonic reacts 2~4h, filtering obtains filter residue, and filter residue is washed with deionized 3~5 times, then by the filter after washing
Slag is transferred in baking oven, is dried to constant weight under the conditions of being 105~110 DEG C in temperature, is obtained modified charring rice husk；It counts in parts by weight,
Take 60~80 parts of water successively, 40~50 parts of n-hexanes, 8~10 parts of N '-cetyls-N, N- dimethyl ethyl amidines, mixing pours into
In beaker, after being stirred 10~15min with glass bar, continue to be passed through in material into beaker with 80~150mL/min rates
45~60min of carbon dioxide gas, obtains foam latex；It counts in parts by weight, takes 140~150 parts of cement successively, 15~20 parts change
Property agstone, 8~10 parts of modified charring rice husks, 15~20 parts of foam latex, 8~10 parts of water-reducing agents, 15~20 parts of quality point
Number is 10~12% urea liquid, the urase solution that 20~30 parts of mass fractions are 0.1~0.2%, first by cement, modified lime
Mountain flour, modified carbonization rice husk and water-reducing agent pour into batch mixer, under the conditions of rotating speed is 400~800r/min, dry-mixed stirring 45
After~60min, foam latex, urea liquid and urase solution are sequentially added, continues under the conditions of temperature is 35~40 DEG C and adds
Thermal agitation mixes 6~12h, obtains mixture slurry, then into mixture slurry is continually fed into argon gas with 80~150mL/min rates while hot
45~60min after waiting for that argon gas is passed through, stops stirring, and stratification removes skim-coat oil phase, collects lower layer's water phase to get multiple
Heshui slurry body.The cement is 32.5 Portland cements, 42.5 Portland cements or 52.5 normal silicate water
Any one in mud.The water-reducing agent is：Sodium lignin sulfonate, TH-928 poly carboxylic acid series water reducers or YZ-1 naphthalene series high-efficiencies subtract
Any one in aqua.
It is 1 in mass ratio by the dopamine solution that agstone and mass concentration that grain size is 100 μm are 4g/L：25 inputs
In No. 1 sink, after being stirred 30min with glass bar, it is standing and soak for 5h, filters, must pre-process lime stone wet feed, then by gained
It is 1 in mass ratio to pre-process the liquor alumini chloridi that lime stone wet feed and mass fraction are 10%：10 are added in three-necked flask, are used in combination
Ammonium hydroxide adjusts material pH in three-necked flask and tests the speed constant temperature blender with magnetic force to 7.4, then by three-necked flask immigration digital display, is in temperature
40 DEG C, under the conditions of rotating speed is 500r/min, after being stirred to react 3h, filtering obtains filter cake, and filter cake is washed with deionized 5 times, then
Filter cake after washing is transferred in vacuum drying chamber, is dried to constant weight under the conditions of being 60 DEG C in temperature, then ground, obtains modified stone
Limestone flour；Rice husk is poured into pulverizer, 80 mesh sieve is smashed it through, obtains rice husk particle, then rice husk particle is transferred in retort,
Argon gas is passed through into stove with 80mL/min rates, under argon gas guard mode, under the conditions of temperature is 780 DEG C, heat preservation charing 4h,
It cools to room temperature with the furnace, discharges, charring rice husk is obtained, then by gained charring rice husk under the conditions of microwave power is 500W, at microwave
60min is managed, pretreatment charring rice husk is obtained, then is 1 in mass ratio：8：10 will pre-process charring rice husk, the sulphur that mass fraction is 98%
After the salpeter solution mixing that acid solution and mass fraction are 15%, in temperature be 70 DEG C, under the conditions of supersonic frequency is 60kHz, constant temperature
After ultrasonic reaction 4h, filtering obtains filter residue, and filter residue is washed with deionized 5 times, then the filter residue after washing is transferred in baking oven,
It is dried to constant weight under the conditions of being 110 DEG C in temperature, obtains modified charring rice husk；It counts in parts by weight, takes 80 parts of water successively, 50 parts just
Hexane, 10 parts of N '-cetyls-N, N- dimethyl ethyl amidines, mixing is poured into beaker, after being stirred 15min with glass bar,
Continue to be passed through carbon dioxide gas 60min in material into beaker with 150mL/min rates, obtains foam latex；In parts by weight
Meter, takes 150 parts of cement successively, 20 parts of modified lime mountain flours, 10 parts of modified charring rice husks, 20 parts of foam latex, 10 parts of water-reducing agents,
The urea liquid that 20 parts of mass fractions are 12%, the urase solution that 30 parts of mass fractions are 0.2%, first by cement, modified lime stone
Powder, modified carbonization rice husk and water-reducing agent pour into batch mixer, under the conditions of rotating speed is 800r/min, after dry-mixed stirring 60min, then
Foam latex, urea liquid and urase solution are sequentially added, heating stirring under the conditions of temperature is 40 DEG C is continued at and mixes 12h, obtain
Mixture slurry, then into mixture slurry argon gas 60min is continually fed into 150mL/min rates while hot, after waiting for that argon gas is passed through,
Stop stirring, stratification removes skim-coat oil phase, collects lower layer's water phase to get complex cement slurry.The cement is 32.5 general
Logical portland cement.The water-reducing agent is sodium lignin sulfonate.
Rice husk is poured into pulverizer, 80 mesh sieve is smashed it through, obtains rice husk particle, then rice husk particle is transferred to retort
In, argon gas is passed through into stove with 80mL/min rates, under argon gas guard mode, under the conditions of temperature is 780 DEG C, heat preservation charing
4h cools to room temperature with the furnace, discharging, obtains charring rice husk, then by gained charring rice husk under the conditions of microwave power is 500W, microwave
60min is handled, pretreatment charring rice husk is obtained, then is 1 in mass ratio：8：10 will pre-process charring rice husk, and mass fraction is 98%
After the salpeter solution mixing that sulfuric acid solution and mass fraction are 15%, in temperature be 70 DEG C, it is permanent under the conditions of supersonic frequency is 60kHz
After warm ultrasonic reaction 4h, filtering obtains filter residue, and filter residue is washed with deionized 5 times, then the filter residue after washing is transferred to baking oven
In, it is dried to constant weight under the conditions of being 110 DEG C in temperature, obtains modified charring rice husk；It counts in parts by weight, takes 80 parts of water successively, 50
Part n-hexane, 10 parts of N '-cetyls-N, N- dimethyl ethyl amidines, mixing are poured into beaker, are stirred with glass bar
After 15min, continues to be passed through carbon dioxide gas 60min in material into beaker with 150mL/min rates, obtain foam latex；It presses
Parts by weight meter takes 150 parts of cement successively, and 20 parts of agstones, 10 parts of modified charring rice husks, 20 parts of foam latex, 10 parts subtract
Aqua, the urea liquid that 20 parts of mass fractions are 12%, the urase solution that 30 parts of mass fractions are 0.2%, first by cement, lime stone
Powder, modified carbonization rice husk and water-reducing agent pour into batch mixer, under the conditions of rotating speed is 800r/min, after dry-mixed stirring 60min, then
Foam latex, urea liquid and urase solution are sequentially added, heating stirring under the conditions of temperature is 40 DEG C is continued at and mixes 12h, obtain
Mixture slurry, then into mixture slurry argon gas 60min is continually fed into 150mL/min rates while hot, after waiting for that argon gas is passed through,
Stop stirring, stratification removes skim-coat oil phase, collects lower layer's water phase to get complex cement slurry.The cement is 32.5 general
Logical portland cement.The water-reducing agent is sodium lignin sulfonate.
It is 1 in mass ratio by the dopamine solution that agstone and mass concentration that grain size is 100 μm are 4g/L：25 inputs
In No. 1 sink, after being stirred 30min with glass bar, it is standing and soak for 5h, filters, must pre-process lime stone wet feed, then by gained
It is 1 in mass ratio to pre-process the liquor alumini chloridi that lime stone wet feed and mass fraction are 10%：10 are added in three-necked flask, are used in combination
Ammonium hydroxide adjusts material pH in three-necked flask and tests the speed constant temperature blender with magnetic force to 7.4, then by three-necked flask immigration digital display, is in temperature
40 DEG C, under the conditions of rotating speed is 500r/min, after being stirred to react 3h, filtering obtains filter cake, and filter cake is washed with deionized 5 times, then
Filter cake after washing is transferred in vacuum drying chamber, is dried to constant weight under the conditions of being 60 DEG C in temperature, then ground, obtains modified stone
Limestone flour；It counts in parts by weight, takes 80 parts of water successively, 50 parts of n-hexanes, 10 parts of N '-cetyls-N, N- dimethyl ethyl amidines,
Mixing is poured into beaker, after being stirred 15min with glass bar, continues to be passed through in material into beaker with 150mL/min rates
Carbon dioxide gas 60min, obtains foam latex；It counts in parts by weight, takes 150 parts of cement successively, 20 parts of modified lime mountain flours, 20
Part foam latex, 10 parts of water-reducing agents, the urea liquid that 20 parts of mass fractions are 12%, the urase that 30 parts of mass fractions are 0.2% are molten
Liquid first pours into cement, modified lime mountain flour, modified carbonization rice husk and water-reducing agent in batch mixer, in rotating speed be 800r/min items
Under part, after dry-mixed stirring 60min, foam latex, urea liquid and urase solution are sequentially added, it is 40 DEG C of items to continue at temperature
Heating stirring mixes 12h under part, obtains mixture slurry, then into mixture slurry is continually fed into argon gas with 150mL/min rates while hot
60min after waiting for that argon gas is passed through, stops stirring, and stratification removes skim-coat oil phase, collects lower layer's water phase to get Compound Water
Slurry body.The cement is 32.5 Portland cements.The water-reducing agent is sodium lignin sulfonate.
It is 1 in mass ratio by the dopamine solution that agstone and mass concentration that grain size is 100 μm are 4g/L：25 inputs
In No. 1 sink, after being stirred 30min with glass bar, it is standing and soak for 5h, filters, must pre-process lime stone wet feed, then by gained
It is 1 in mass ratio to pre-process the liquor alumini chloridi that lime stone wet feed and mass fraction are 10%：10 are added in three-necked flask, are used in combination
Ammonium hydroxide adjusts material pH in three-necked flask and tests the speed constant temperature blender with magnetic force to 7.4, then by three-necked flask immigration digital display, is in temperature
40 DEG C, under the conditions of rotating speed is 500r/min, after being stirred to react 3h, filtering obtains filter cake, and filter cake is washed with deionized 5 times, then
Filter cake after washing is transferred in vacuum drying chamber, is dried to constant weight under the conditions of being 60 DEG C in temperature, then ground, obtains modified stone
Limestone flour；Rice husk is poured into pulverizer, 80 mesh sieve is smashed it through, obtains rice husk particle, then rice husk particle is transferred in retort,
Argon gas is passed through into stove with 80mL/min rates, under argon gas guard mode, under the conditions of temperature is 780 DEG C, heat preservation charing 4h,
It cools to room temperature with the furnace, discharges, obtain charring rice husk；It counts in parts by weight, takes 80 parts of water, 50 parts of n-hexanes, 10 parts of N '-ten successively
Six alkyl-N, N- dimethyl ethyl amidines, mixing is poured into beaker, after being stirred 15min with glass bar, with 150mL/min speed
Rate continues to be passed through carbon dioxide gas 60min in material into beaker, obtains foam latex；It counts in parts by weight, takes 150 parts successively
Cement, 20 parts of modified lime mountain flours, 10 parts of charring rice husks, 20 parts of foam latex, 10 parts of water-reducing agents, 20 parts of mass fractions are 12%
Urea liquid, the urase solution that 30 parts of mass fractions are 0.2%, first by cement, modified lime mountain flour, modified carbonization rice husk and
Water-reducing agent pours into batch mixer, under the conditions of rotating speed is 800r/min, after dry-mixed stirring 60min, sequentially adds foam latex,
Urea liquid and urase solution continue at heating stirring under the conditions of temperature is 40 DEG C and mix 12h, obtains mixture slurry, then while hot to
Argon gas 60min is continually fed into 150mL/min rates in mixture slurry, after waiting for that argon gas is passed through, stops stirring, stands and divide
Layer removes skim-coat oil phase, collects lower layer's water phase to get complex cement slurry.The cement is 32.5 Portland cements.Institute
It is sodium lignin sulfonate to state water-reducing agent.
It is 1 in mass ratio by the dopamine solution that agstone and mass concentration that grain size is 100 μm are 4g/L：25 inputs
In No. 1 sink, after being stirred 30min with glass bar, it is standing and soak for 5h, filters, must pre-process lime stone wet feed, then by gained
It is 1 in mass ratio to pre-process the liquor alumini chloridi that lime stone wet feed and mass fraction are 10%：10 are added in three-necked flask, are used in combination
Ammonium hydroxide adjusts material pH in three-necked flask and tests the speed constant temperature blender with magnetic force to 7.4, then by three-necked flask immigration digital display, is in temperature
40 DEG C, under the conditions of rotating speed is 500r/min, after being stirred to react 3h, filtering obtains filter cake, and filter cake is washed with deionized 5 times, then
Filter cake after washing is transferred in vacuum drying chamber, is dried to constant weight under the conditions of being 60 DEG C in temperature, then ground, obtains modified stone
Limestone flour；Rice husk is poured into pulverizer, 80 mesh sieve is smashed it through, obtains rice husk particle, then rice husk particle is transferred in retort,
Argon gas is passed through into stove with 80mL/min rates, under argon gas guard mode, under the conditions of temperature is 780 DEG C, heat preservation charing 4h,
It cools to room temperature with the furnace, discharges, charring rice husk is obtained, then by gained charring rice husk under the conditions of microwave power is 500W, at microwave
60min is managed, pretreatment charring rice husk is obtained, then is 1 in mass ratio：8：10 will pre-process charring rice husk, the sulphur that mass fraction is 98%
After the salpeter solution mixing that acid solution and mass fraction are 15%, in temperature be 70 DEG C, under the conditions of supersonic frequency is 60kHz, constant temperature
After ultrasonic reaction 4h, filtering obtains filter residue, and filter residue is washed with deionized 5 times, then the filter residue after washing is transferred in baking oven,
It is dried to constant weight under the conditions of being 110 DEG C in temperature, obtains modified charring rice husk；It counts in parts by weight, takes 80 parts of water successively, 50 parts just
Hexane, 10 parts of neopelexes, mixing is poured into beaker, after being stirred 15min with glass bar, with 150mL/min
Rate continues to be passed through carbon dioxide gas 60min in material into beaker, obtains foam latex；It counts in parts by weight, takes 150 successively
Part cement, 20 parts of modified lime mountain flours, 10 parts of modified charring rice husks, 20 parts of foam latex, 10 parts of water-reducing agents, 20 parts of mass fractions
For 12% urea liquid, the urase solution that 30 parts of mass fractions are 0.2%, first by cement, modified lime mountain flour, modified carbonization rice
Shell and water-reducing agent pour into batch mixer, under the conditions of rotating speed is 800r/min, after dry-mixed stirring 60min, sequentially add foam
Lotion, urea liquid and urase solution continue at heating stirring under the conditions of temperature is 40 DEG C and mix 12h, obtains mixture slurry, then take advantage of
Heat is continually fed into argon gas 60min into mixture slurry with 150mL/min rates, after waiting for that argon gas is passed through, stops stirring, stands
Skim-coat oil phase is removed in layering, collects lower layer's water phase to get complex cement slurry.The cement is 32.5 Portland cements.
The water-reducing agent is sodium lignin sulfonate.
It is 1 in mass ratio by the dopamine solution that agstone and mass concentration that grain size is 100 μm are 4g/L：25 inputs
In No. 1 sink, after being stirred 30min with glass bar, it is standing and soak for 5h, filters, must pre-process lime stone wet feed, then by gained
It is 1 in mass ratio to pre-process the liquor alumini chloridi that lime stone wet feed and mass fraction are 10%：10 are added in three-necked flask, are used in combination
Ammonium hydroxide adjusts material pH in three-necked flask and tests the speed constant temperature blender with magnetic force to 7.4, then by three-necked flask immigration digital display, is in temperature
40 DEG C, under the conditions of rotating speed is 500r/min, after being stirred to react 3h, filtering obtains filter cake, and filter cake is washed with deionized 5 times, then
Filter cake after washing is transferred in vacuum drying chamber, is dried to constant weight under the conditions of being 60 DEG C in temperature, then ground, obtains modified stone
Limestone flour；Rice husk is poured into pulverizer, 80 mesh sieve is smashed it through, obtains rice husk particle, then rice husk particle is transferred in retort,
Argon gas is passed through into stove with 80mL/min rates, under argon gas guard mode, under the conditions of temperature is 780 DEG C, heat preservation charing 4h,
It cools to room temperature with the furnace, discharges, charring rice husk is obtained, then by gained charring rice husk under the conditions of microwave power is 500W, at microwave
60min is managed, pretreatment charring rice husk is obtained, then is 1 in mass ratio：8：10 will pre-process charring rice husk, the sulphur that mass fraction is 98%
After the salpeter solution mixing that acid solution and mass fraction are 15%, in temperature be 70 DEG C, under the conditions of supersonic frequency is 60kHz, constant temperature
After ultrasonic reaction 4h, filtering obtains filter residue, and filter residue is washed with deionized 5 times, then the filter residue after washing is transferred in baking oven,
It is dried to constant weight under the conditions of being 110 DEG C in temperature, obtains modified charring rice husk；It counts in parts by weight, takes 80 parts of water successively, 50 parts just
Hexane, 10 parts of N '-cetyls-N, N- dimethyl ethyl amidines, mixing is poured into beaker, after being stirred 15min with glass bar,
Continue to be passed through carbon dioxide gas 60min in material into beaker with 150mL/min rates, obtains foam latex；In parts by weight
Meter, takes 150 parts of cement successively, 20 parts of modified lime mountain flours, 10 parts of modified charring rice husks, 20 parts of foam latex, 10 parts of water-reducing agents,
The urea liquid that 20 parts of mass fractions are 12% first pours into cement, modified lime mountain flour, modified carbonization rice husk and water-reducing agent mixed
In material machine, under the conditions of rotating speed is 800r/min, after dry-mixed stirring 60min, foam latex is sequentially added, urea liquid, after
Continue in temperature be 40 DEG C under the conditions of heating stirring mix 12h, obtain mixture slurry, then while hot into mixture slurry with 150mL/min
Rate is continually fed into argon gas 60min, after waiting for that argon gas is passed through, stops stirring, stratification removes skim-coat oil phase, under collection
Layer water phase is to get complex cement slurry.The cement is 32.5 Portland cements.The water-reducing agent is lignin sulfonic acid
Sodium.
Comparative example：The cement slurry of Wuxi building materials company production.
1 to 6 gained cement slurry of example and comparative example product are subjected to performance detection, specific detection method is as follows：
Hardened cement paste compressive strength test uses the small test blocks of 2cm × 2cm × 2cm, water-cement ratio 0.40（Mass ratio）, maintenance
Temperature is 20 DEG C, and water is supported.The compression strength of 7,28,90d hydration age of test block is tested respectively.Specific testing result is as shown in table 1：
Table 1：Performance detection table
By 1 testing result of table it is found that present invention gained complex cement slurry has excellent intensity.
Claims (6)
1. a kind of complex cement slurry, which is characterized in that be made of the raw material of following parts by weight：
140~150 parts of cement
15~20 parts of modified lime mountain flour
Modified 8~10 parts of charring rice husk
15~20 parts of foam latex
8~10 parts of water-reducing agent
15~20 parts of urea liquid
20~30 parts of urase solution
The complex cement slurry configuration process is：
（1）It is formed by raw material and weighs each component；
（2）First cement, modified lime mountain flour, modified carbonization rice husk and water-reducing agent are stirred, sequentially add foam latex,
Urea liquid and urase solution continue heating stirring mixing, obtain mixture slurry, then be continually fed into argon gas into mixture slurry while hot
45~60min, stratification go skim-coat oil phase to get complex cement slurry.
2. a kind of complex cement slurry according to claim 1, which is characterized in that the cement is 32.5 normal silicates
Any one in cement, 42.5 Portland cements or 52.5 Portland cements.
3. a kind of complex cement slurry according to claim 1, which is characterized in that the modified lime mountain flour preparation process
For：Agstone and dopamine solution are mixed after impregnating, filtering must pre-process lime stone wet feed, then will pre-process lime stone
The liquor alumini chloridi that wet feed and mass fraction are 8~10% is 1 in mass ratio：8~1：10 are stirred, and ammonium hydroxide is used in combination to adjust pH
To 7.2~7.4, continue after being stirred to react, filter, washing and drying obtain modified lime mountain flour.
4. a kind of complex cement slurry according to claim 1, which is characterized in that the modified charring rice husk preparation process
For：Rice husk is crushed, charing and microwave treatment obtain pretreatment charring rice husk, then will pre-process charring rice husk, sulfuric acid solution and nitre
Acid solution is 1 in mass ratio：8：After 10 mixing, thermostatic ultrasonic reaction then passes through filter, washing and drying, must be modified charing rice
Shell.
5. a kind of complex cement slurry according to claim 1, which is characterized in that the foam latex preparation process is：
It counts in parts by weight, takes 60~80 parts of water, 40~50 parts of n-hexanes, 8~10 parts of N '-cetyls-N, N- dimethyl second successively
Base amidine after mixing, is continually fed into 45~60min of carbon dioxide gas, obtains foam latex.
6. a kind of complex cement slurry according to claim 1, which is characterized in that the water-reducing agent is：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.
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