CN110078444A - A kind of preparation method of pressure resistance anticracking sound-absorbing building block - Google Patents
A kind of preparation method of pressure resistance anticracking sound-absorbing building block Download PDFInfo
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- CN110078444A CN110078444A CN201910361165.4A CN201910361165A CN110078444A CN 110078444 A CN110078444 A CN 110078444A CN 201910361165 A CN201910361165 A CN 201910361165A CN 110078444 A CN110078444 A CN 110078444A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
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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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- Structural Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of preparation methods of pressure-resistant anticracking sound-absorbing building block, belong to building material technical field.According to parts by weight, it successively weighs: 50~60 parts of cement, 30~40 parts of water, 20~30 parts of sand, 5~8 parts of flyash, 20~40 parts of additives and 4~8 parts of water-reducing agents, cement and water are mixed in blender, and sand is added into blender, flyash, additive and water-reducing agent, in temperature be 50~60 DEG C, under conditions of revolving speed is 280~400r/min, after being stirred 30~70min, obtain blank, after blank injection molding, in solidification 1~2 day under room temperature, demoulding, obtain pressure-resistant anticracking sound-absorbing building block blank, by pressure-resistant anticracking sound-absorbing building block blank after conserving 20~28 days under room temperature, obtain pressure-resistant anticracking sound-absorbing building block.The pressure-resistant anticracking sound-absorbing building block of gained of the invention has excellent compressive property and sound-absorbing effect.
Description
Technical field
The invention discloses a kind of preparation methods of pressure-resistant anticracking sound-absorbing building block, belong to building material technical field.
Background technique
With the development of industry, noise pollution is increasingly severe, and noise pollution is easily listed in three overall situation of the world and pollutes it
One.Current main solution first is that using sound-absorbing material, especially sound-absorbing porous material, this, which is also regarded as one kind, has
The passive type sqouynd absorption lowering noise method of effect.
Sound-absorbing material can be divided into sound-absorbing porous material and resonance sound-absorbing structure material two major classes according to sound absorbing mechanism.For more
For hole sound absorbing material, since there are many small gaps and continuous bubble, thus there is certain aeration, when sound wave enters
When being mapped to porous material surface, decaying that mainly two kinds of mechanism cause sound wave: the vibration for being firstly because sound wave generation causes
Air movement in aperture or gap causes the friction with hole wall, and the air against hole wall and fiber surface is influenced by hole wall
It is not easy to move up, due to the effect to rub with viscous force, quite a few sound is enable to be converted into thermal energy, thus make acoustic attenuation,
Reflected sound decrease achievees the purpose that sound absorption；Secondly, heat waste caused by heat exchange between air and hole wall and fiber in aperture
It loses, also makes sound energy attenuation.In addition, high frequency sound wave can make the vibration velocity quickening of air particle between gap, the heat of air and hole wall
Exchange is also accelerated.This is just
Make porous material that there is good high frequency sound absorbing performance.
In recent years, the fast development due to the construction of highway, urban elevated road and urban light rail and urban automobile
Quantity sharply increases, and traffic noise problem is on the rise, and having become influences people's lives most serious, most widely pollutes it
One.In the measure of various prevention and treatment traffic pollutions, setting up road noise barrier is a kind of effective ways.
Existing sound barrier mainly includes organic sound barrier, metal sound barrier and inorganic sound barrier three classes.Although organic sound
Barrier and metal sound barrier have many advantages, such as simple installation, convenient for maintenance and can scale manufacturing, but its cost is high and coordination of landscape
Difference, the demanding disadvantage of corrosion resistance are also clearly.Although inorganic sound barrier is pollution-free, at low cost, its volume is big, fortune
Defeated inconvenience.Brick setting formula sound barrier absorb sound as one of the sound barrier important form for reducing traffic noise, there is inorganic sound-screen
All advantages of barrier, small in size additionally, due to its, transport builds and is conveniently widely applied.Acoustic tile currently on the market is more
There is biggish sound reflecting so that there are the mutation of acoustic impedance between acoustic tile and air for plane formula or corrugated surface formula, to drop
The low sound absorbing performance of acoustic tile.Some researchers have studied a kind of pressure-resistant antidetonation foam concrete blocks and preparation method thereof, should
Building block includes following raw material: carbide slurry, modified landplaster, steel-making slag powder, bauxite, basalt fibre, Aluminum sol, light-burned oxygen
Change magnesium, baryta fledspar powder, organic silicon emulsion, foaming agent, foam stabilizer, water-reducing agent, adjustable solidification agent and early strength agent.Preparation method is will be former
Material is stirred stage by stage, is poured later, just maintenance handles and steam press maintenance.The foam concrete block of the invention
Cost of material is low, prepares simple and convenient, and not only bulk density is light, heat insulation sound absorbent is good, but also greatly improves in mechanical property, especially
It is that solve the problems, such as that concrete segment pressure resistance toughness and shock resistance are poor in the prior art, extend the service life of building block,
It has a vast market foreground.But that there is also compressive properties is bad for traditional sound-absorbing building block at present, sound-absorbing effect can not be into one
The problem of step improves, therefore also need to study it.
Summary of the invention
The present invention solves the technical problem of: can be bad for traditional sound-absorbing block compression, sound-absorbing effect can not
The problem of further increasing provides a kind of preparation method of pressure-resistant anticracking sound-absorbing building block.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
(1) P123 is mixed with hydrochloric acid 1:40~1:45 in mass ratio, and 4~5 times of P123 mass of mesitylene is added, stirred
After reaction, treatment fluid is obtained, treatment fluid is mixed with ethyl orthosilicate 22:1~30:1 in mass ratio, after being stirred to react, crystallization is taken out
Filter, obtains silica, dry by silica after Soxhlet extraction, obtains pretreated silicon dioxide, pretreated silicon dioxide is forged
It burns, obtains pre- improved silica；
(2) pre- improved silica is mixed with toluene 1:30~1:40 in mass ratio, and pre- improved silica quality is added
0.8~1.0 times of trimethoxy γ-aminopropylsilane solution after being stirred to react, is filtered, is washed, dry, obtains improved silica；
(3) pre- modified powder is mixed with water 1:8~1:10 in mass ratio, and four fourths of 2~3 times of pre- modified powder quality is added
Base amine, after being stirred to react, ultrasonic disperse is filtered, dry, obtains modified powder；
(4) improved silica is mixed with water 1:10~1:15 in mass ratio, and be added improved silica quality 0.6~
0.8 times of modified powder and 0.1~0.2 times of improved silica quality of dispersing agent after being stirred, filter, dry, must add
Add agent；
(5) according to parts by weight, it successively weighs: 50~60 parts of cement, 30~40 parts of water, 20~30 parts of sand, 5~8 parts of flyash,
20~40 parts of additives and 4~8 parts of water-reducing agents, cement are mixed with water, and sand is added, flyash, and additive and water-reducing agent stir
After mixing mixing, blank is obtained, blank injection molding is solidified, is demoulded, maintenance obtains pressure-resistant anticracking sound-absorbing building block.
Step (1) P123 is polyethylene oxide-polypropylene oxide-polyethylene oxide.
Step (2) the trimethoxy γ-aminopropylsilane solution be by trimethoxy γ-aminopropylsilane and toluene in mass ratio
1:5~1:8 mixing, obtains trimethoxy γ-aminopropylsilane solution.
Step (3) the pre- modified powder is that 1.3:4.0 is mixed in molar ratio with titanium dioxide by potassium carbonate, and grinding is forged
It burns, washs, it is dry, obtain pre- modified powder.
Step (4) dispersing agent is dispersing agent NNO, any one in Dispersant MF or dispersing agent 5040.
Step (5) cement is any one in common 42.5 grades of portland cements or common 42.5R grades of portland cement
Kind.
Step (5) described sand is the sand that mesh number is 200 mesh.
Step (5) water-reducing agent is any one in sodium lignin sulfonate or melamine water reducing agent.
0.05~0.10 times of blank quality of air entraining agent can be added in step (5) described blank, the air entraining agent is carbonic acid
Any one in hydrogen calcium or sodium bicarbonate.
0.1~0.2 times of water quality of lauryl alcohol and 0.02~0.06 times of water quality of table can be added in step (5) described water
Face activating agent, the surfactant are any one in neopelex or lauryl sodium sulfate.
The beneficial effects of the present invention are:
(1) additive is added when preparing pressure-resistant anticracking sound-absorbing building block in the present invention, firstly, containing porous silica in additive
Silicon can effectively improve the porosity of product after being added in product, also, since porous silica is open-celled structure, can be into
One step improves the sound-absorbing effect of silica, so that the sound absorption qualities of product are improved, meanwhile, after treatment, porous two
Silica expansion of pores, and surface grafting amino reduce the hydrophily of porous silica silicon face, and hydrophobicity improves, thus
Can make the hygroscopicity of large aperture silica reduces, so guarantee that product will not enter hole because of moisture in use and
The sound-absorbing effect of product is influenced, secondly, joined modified powder in additive, potassium tetratitanate lamella knot is contained in modified powder
Structure, and after modification, potassium tetratitanate is largely removed into monolithic layer structure, and then after being added in additive, can
The pore interior of large aperture silica is adsorbed in product preparation process, to keep the compressive property of porous silica aobvious
It writes and improves, and then significantly improve the compressive property of product after being added in product, also, since potassium tetratitanate is after removing,
A certain amount of n-dodecylamine is grafted in potassium tetratitanate lamella, in the hole for being embedded in silica after, further increase macropore
The hydrophobic performance of diameter silica, to guarantee the porosity of interiors of products in use, while can be to a certain extent
The hole of abundant porous silica, improves the specific surface area of porous silica, and then keep the sound-absorbing effect of product further
It improves；
(2) air entraining agent, lauryl alcohol and surfactant can be added when preparing pressure-resistant anticracking sound-absorbing building block in the present invention, and addition is drawn
Gas agent can generate gas in product preparation process, so that reduction adds while enriching interiors of products hole to a certain extent
Add the probability for entering moisture in agent inside silica hole, and then 12 for improving the sound-absorbing effect of product, and being added
Pure and mild surfactant can form hydrophobic bubble, and then make product under the action of air entraining agent inside porous silica
Sound-absorbing effect further increases.
Specific embodiment
By potassium carbonate, 1.3:4.0 is mixed in grinder in molar ratio with titanium dioxide, after 20~30h of mixed grinding, is obtained
Mixed-powder obtains pre- modified powder blank after calcining 20~25h under conditions of being 750~850 DEG C in temperature by mixed-powder,
After being salt acid elution 5~8 times of 10~15% by pre- modified powder blank mass fraction, and the item for being 80~90 DEG C in temperature
Dry 1~2h, obtains pre- modified powder under part；Hydrochloric acid 1:40~the 1:45 in mass ratio for being 15~18% by P123 and mass fraction
It is mixed in flask, and 4~5 times of P123 mass of mesitylene is added into flask, under conditions of temperature is 30~38 DEG C
After being stirred to react 3~4h, treatment fluid is obtained, treatment fluid is mixed with ethyl orthosilicate 22:1~30:1 in mass ratio, is in temperature
30~40 DEG C, under conditions of revolving speed is 300~360r/min, be stirred to react 20~for 24 hours after, and in temperature be 100~105 DEG C
Under the conditions of flow back crystallization 20~for 24 hours, filter, obtain silica, silica is used to dehydrated alcohol respectively and mass fraction is 10
Each Soxhlet extraction of~12% hydrochloric acid dried 15~20h under conditions of being 30~35 DEG C in temperature after 1 day, obtained pretreatment dioxy
SiClx obtains pre- modified titanium dioxide under conditions of being 550~580 DEG C in temperature by pretreated silicon dioxide after 5~6h of calcining at constant temperature
Silicon；Pre- improved silica is mixed with toluene 1:30~1:40 in mass ratio, and to the mixed of pre- improved silica and toluene
Close and the trimethoxy γ-aminopropylsilane solution of 0.8~1.0 times of pre- improved silica quality be added in object, in temperature be 100~
110 DEG C, under conditions of revolving speed is 200~400r/min, be stirred to react 20~for 24 hours after, filtering obtains improved silica blank,
After improved silica blank is washed 5~8 times with dehydrated alcohol, it is dried in vacuo 10~12h under conditions of being 40 DEG C in temperature,
Obtain improved silica；Pre- modified powder and water 1:8~1:10 in mass ratio are mixed in beaker, and are added in advance into beaker
The 4-butyl amine that 2~3 times of modified powder quality is 35~55 DEG C in temperature, under conditions of revolving speed is 250~380r/min, stirs
After mixing 10~12h of reaction, and 1~2h of ultrasonic disperse under conditions of frequency is 45~55kHz, filtering obtain modified powder blank,
Under conditions of being 60~80 DEG C in temperature by modified powder blank after dry 1~2h, modified powder is obtained；By improved silica with
Water 1:10~1:15 in mass ratio mixing, and improved silica quality is added into the mixture of improved silica and water
0.6~0.8 times of modified powder and 0.1~0.2 times of improved silica quality of dispersing agent are 35~55 DEG C in temperature, turn
Under conditions of speed is 300~350r/min, after being stirred 3~6h, filtering obtains additive blank, by additive blank in temperature
After degree is dried in vacuo 6~8h under conditions of being 60 DEG C, additive is obtained；According to parts by weight, it successively weighs: 50~60 parts of cement,
30~40 parts of water, 20~30 parts of sand, 5~8 parts of flyash, 20~40 parts of additives and 4~8 parts of water-reducing agents, cement and water are mixed
Together in blender, and sand is added into blender, flyash, additive and water-reducing agent are 50~60 DEG C in temperature, revolving speed is
Under conditions of 280~400r/min, after being stirred 30~70min, blank is obtained, after blank injection molding, in solid under room temperature
Change 1~2 day, demoulding obtains pressure-resistant anticracking sound-absorbing building block blank, by pressure-resistant anticracking sound-absorbing building block blank in conserving 20 under room temperature
After~28 days, pressure-resistant anticracking sound-absorbing building block is obtained.The P123 is polyethylene oxide-polypropylene oxide-polyethylene oxide.Described three
Methoxyl group γ-aminopropylsilane solution is to mix trimethoxy γ-aminopropylsilane with toluene 1:5~1:8 in mass ratio, obtains trimethoxy
Base γ-aminopropylsilane solution.The dispersing agent is dispersing agent NNO, any one in Dispersant MF or dispersing agent 5040.The water
Mud is any one in common 42.5 grades of portland cements or common 42.5R grades of portland cement.The sand is that mesh number is 200 mesh
Sand.The water-reducing agent is any one in sodium lignin sulfonate or melamine water reducing agent.Blank matter can be added in the blank
The air entraining agent of 0.05~0.10 times of amount, the air entraining agent are any one in calcium bicarbonate or sodium bicarbonate.It can add in the water
Enter 0.1~0.2 times of water quality of lauryl alcohol and 0.02~0.06 times of water quality of surfactant, the surfactant is ten
Any one in dialkyl benzene sulfonic acids sodium or lauryl sodium sulfate.
By potassium carbonate, 1.3:4.0 is mixed in grinder in molar ratio with titanium dioxide, after mixed grinding 30h, must be mixed
Powder obtains pre- modified powder blank, by pre- modified powder base after calcining 25h under conditions of being 850 DEG C in temperature by mixed-powder
After material mass fraction is salt acid elution 8 times of 15%, and the dry 2h under the conditions of at a temperature of 90 °C, obtain pre- modified powder；It will
The hydrochloric acid 1:45 in mass ratio that P123 and mass fraction are 18% is mixed in flask, and 5 times of P123 mass are added into flask
Mesitylene obtains treatment fluid after being stirred to react 4h under conditions of being 38 DEG C in temperature, and treatment fluid and ethyl orthosilicate are pressed quality
Than 30:1 mix, in temperature be 40 DEG C, revolving speed be 360r/min under conditions of, after being stirred to react for 24 hours, and in temperature be 105 DEG C
Under conditions of reflux crystallization for 24 hours, filter, obtain silica, it is 12% that silica is used to dehydrated alcohol and mass fraction respectively
Each Soxhlet extraction of hydrochloric acid dried 20h under conditions of being 35 DEG C in temperature after 1 day, obtains pretreated silicon dioxide, will pre-process two
Under conditions of silica is 580 DEG C in temperature after calcining at constant temperature 6h, pre- improved silica is obtained；By pre- improved silica and first
Benzene 1:40 in mass ratio mixing, and pre- improved silica quality is added into the mixture of pre- improved silica and toluene
1.0 times of trimethoxy γ-aminopropylsilane solution is 110 DEG C in temperature, under conditions of revolving speed is 400r/min, is stirred to react
After for 24 hours, filtering obtains improved silica blank, after improved silica blank is washed 8 times with dehydrated alcohol, is in temperature
It is dried in vacuo 12h under conditions of 40 DEG C, obtains improved silica；Pre- modified powder and water 1:10 in mass ratio are mixed in beaker
In, and the 4-butyl amine of 3 times of pre- modified powder quality is added into beaker, it is 55 DEG C in temperature, revolving speed is the item of 380r/min
Under part, after being stirred to react 12h, and the ultrasonic disperse 2h under conditions of frequency is 55kHz, filtering obtain modified powder blank, will change
Property powder batch be 80 DEG C in temperature under conditions of after dry 2h, obtain modified powder；In mass ratio by improved silica and water
1:15 mixing, and into the mixture of improved silica and water be added 0.8 times of improved silica quality modified powder and
The dispersing agent that 0.2 times of improved silica quality is 55 DEG C in temperature, under conditions of revolving speed is 350r/min, is stirred 6h
Afterwards, it filters, obtains additive blank, after being dried in vacuo 8h under conditions of being 60 DEG C in temperature by additive blank, obtain additive；It presses
Parts by weight meter, successively weighs: 60 parts of cement, 40 parts of water, 30 parts of sand, 8 parts of flyash, 40 parts of additives and 8 parts of water-reducing agents, will
Cement and water are mixed in blender, and sand is added into blender, flyash, additive and water-reducing agent, in temperature be 60 DEG C,
Under conditions of revolving speed is 400r/min, after being stirred 70min, blank is obtained, after blank injection molding, in solidifying 2 under room temperature
It, demoulding obtains pressure-resistant anticracking sound-absorbing building block blank, by pressure-resistant anticracking sound-absorbing building block blank after conserving 28 days under room temperature,
Obtain pressure-resistant anticracking sound-absorbing building block.The P123 is polyethylene oxide-polypropylene oxide-polyethylene oxide.The trimethoxy ammonia
Propyl silane solution is to mix trimethoxy γ-aminopropylsilane with toluene 1:8 in mass ratio, obtains trimethoxy γ-aminopropylsilane
Solution.The dispersing agent is dispersing agent NNO.The cement is common 42.5 grades of portland cements.The sand is that mesh number is 200 mesh
Sand.The water-reducing agent is sodium lignin sulfonate.0.10 times of blank quality of air entraining agent, the bleed can be added in the blank
Agent is any one in calcium bicarbonate or sodium bicarbonate.0.2 times of water quality of lauryl alcohol and water quality can be added in the water
0.06 times of surfactant, the surfactant are neopelex.
By potassium carbonate, 1.3:4.0 is mixed in grinder in molar ratio with titanium dioxide, after mixed grinding 30h, must be mixed
Powder obtains pre- modified powder blank, by pre- modified powder base after calcining 25h under conditions of being 850 DEG C in temperature by mixed-powder
After material mass fraction is salt acid elution 8 times of 15%, and the dry 2h under the conditions of at a temperature of 90 °C, obtain pre- modified powder；It will
The hydrochloric acid 1:45 in mass ratio that P123 and mass fraction are 18% is mixed in flask, is stirred under conditions of being 38 DEG C in temperature anti-
After answering 4h, obtain treatment fluid, treatment fluid mixed with ethyl orthosilicate 30:1 in mass ratio, in temperature be 40 DEG C, revolving speed 360r/
Under conditions of min, after being stirred to react for 24 hours, and crystallization is flowed back for 24 hours under conditions of being 105 DEG C in temperature, filters, obtain silica,
Silica is used respectively each Soxhlet extraction of hydrochloric acid that dehydrated alcohol and mass fraction are 12% after 1 day, and in temperature be 35 DEG C
Under the conditions of dry 20h, obtain pretreated silicon dioxide, calcining at constant temperature under conditions of being 580 DEG C in temperature by pretreated silicon dioxide
After 6h, pre- improved silica is obtained；Pre- improved silica is mixed with toluene 1:40 in mass ratio, and to pre- modified titanium dioxide
Pre- 1.0 times of improved silica quality of trimethoxy γ-aminopropylsilane solution, Yu Wendu are added in the mixture of silicon and toluene
It is 110 DEG C, under conditions of revolving speed is 400r/min, after being stirred to react for 24 hours, filtering obtains improved silica blank, by modified two
After oxidation silicon blank washs 8 times with dehydrated alcohol, it is dried in vacuo 12h under conditions of being 40 DEG C in temperature, obtains improved silica；
Pre- modified powder and water 1:10 in mass ratio are mixed in beaker, and the four of 3 times of pre- modified powder quality is added into beaker
Butylamine, in temperature be 55 DEG C, revolving speed be 380r/min under conditions of, after being stirred to react 12h, and in frequency be 55kHz item
Ultrasonic disperse 2h under part, filtering, obtains modified powder blank, dry 2h under conditions of being 80 DEG C in temperature by modified powder blank
Afterwards, modified powder is obtained；Improved silica is mixed with water 1:15 in mass ratio, and to the mixture of improved silica and water
0.8 times of improved silica quality of modified powder of middle addition and 0.2 times of improved silica quality of dispersing agent are in temperature
55 DEG C, under conditions of revolving speed is 350r/min, after being stirred 6h, filtering obtains additive blank, by additive blank in temperature
After being dried in vacuo 8h under conditions of being 60 DEG C, additive is obtained；According to parts by weight, it successively weighs: 60 parts of cement, 40 parts of water, 30
Part sand, 8 parts of flyash, 40 parts of additives and 8 parts of water-reducing agents, cement and water are mixed in blender, and are added into blender
Enter sand, flyash, additive and water-reducing agent, is 60 DEG C in temperature, under conditions of revolving speed is 400r/min, is stirred 70min
Afterwards, blank is obtained, after blank injection molding, in solidifying 2 days under room temperature, demoulding obtains pressure-resistant anticracking sound-absorbing building block blank, will be pressure-resistant
Anticracking sound-absorbing building block blank obtains pressure-resistant anticracking sound-absorbing building block after conserving 28 days under room temperature.The P123 is polycyclic oxygen second
Alkane-polypropylene oxide-polyethylene oxide.The trimethoxy γ-aminopropylsilane solution is by trimethoxy γ-aminopropylsilane and first
Benzene 1:8 in mass ratio mixing, obtains trimethoxy γ-aminopropylsilane solution.The dispersing agent is dispersing agent NNO.The cement is general
Lead to 42.5 grades of portland cements.The sand is the sand that mesh number is 200 mesh.The water-reducing agent is sodium lignin sulfonate.The blank
In 0.10 times of blank quality of air entraining agent can be added, the air entraining agent is any one in calcium bicarbonate or sodium bicarbonate.It is described
0.2 times of water quality of lauryl alcohol and 0.06 times of water quality of surfactant can be added in water, the surfactant is 12
Sodium alkyl benzene sulfonate.
By potassium carbonate, 1.3:4.0 is mixed in grinder in molar ratio with titanium dioxide, after mixed grinding 30h, must be mixed
Powder obtains pre- modified powder blank, by pre- modified powder base after calcining 25h under conditions of being 850 DEG C in temperature by mixed-powder
After material mass fraction is salt acid elution 8 times of 15%, and the dry 2h under the conditions of at a temperature of 90 °C, obtain pre- modified powder；It will
The hydrochloric acid 1:45 in mass ratio that P123 and mass fraction are 18% is mixed in flask, and 5 times of P123 mass are added into flask
Mesitylene obtains treatment fluid after being stirred to react 4h under conditions of being 38 DEG C in temperature, and treatment fluid and ethyl orthosilicate are pressed quality
Than 30:1 mix, in temperature be 40 DEG C, revolving speed be 360r/min under conditions of, after being stirred to react for 24 hours, and in temperature be 105 DEG C
Under conditions of reflux crystallization for 24 hours, filter, obtain silica, it is 12% that silica is used to dehydrated alcohol and mass fraction respectively
Each Soxhlet extraction of hydrochloric acid dried 20h under conditions of being 35 DEG C in temperature after 1 day, obtains pretreated silicon dioxide, will pre-process two
Under conditions of silica is 580 DEG C in temperature after calcining at constant temperature 6h, pre- improved silica is obtained；By pre- improved silica and first
Benzene 1:40 in mass ratio mixing is 110 DEG C in temperature, and under conditions of revolving speed is 400r/min, after being stirred to react for 24 hours, filtering is obtained
Improved silica blank, it is true under conditions of being 40 DEG C in temperature after improved silica blank is washed 8 times with dehydrated alcohol
The dry 12h of sky, obtains improved silica；Pre- modified powder and water 1:10 in mass ratio are mixed in beaker, and into beaker
The 4-butyl amine of 3 times of pre- modified powder quality is added, is 55 DEG C in temperature, under conditions of revolving speed is 380r/min, is stirred to react
After 12h, and in frequency be 55kHz under conditions of ultrasonic disperse 2h, filtering, obtain modified powder blank, by modified powder blank in
Temperature after dry 2h, obtains modified powder under conditions of being 80 DEG C；Improved silica is mixed with water 1:15 in mass ratio, and to
The modified powder and improved silica matter of 0.8 times of improved silica quality are added in the mixture of improved silica and water
The dispersing agent of 0.2 times of amount is 55 DEG C in temperature, and under conditions of revolving speed is 350r/min, after being stirred 6h, filtering must be added
Agent blank obtains additive after being dried in vacuo 8h under conditions of being 60 DEG C in temperature by additive blank；According to parts by weight, according to
Secondary to weigh: 60 parts of cement, 40 parts of water, 30 parts of sand, 8 parts of flyash, 40 parts of additives and 8 parts of water-reducing agents mix cement with water
In blender, and sand is added into blender, flyash, additive and water-reducing agent, in temperature be 60 DEG C, revolving speed 400r/
Under conditions of min, after being stirred 70min, blank is obtained, after blank injection molding, in solidifying 2 days under room temperature, demoulding is obtained resistance to
Anticracking sound-absorbing building block blank is pressed, by pressure-resistant anticracking sound-absorbing building block blank after conserving 28 days under room temperature, pressure-resistant anticracking is obtained and inhales
Sound building block.The P123 is polyethylene oxide-polypropylene oxide-polyethylene oxide.The dispersing agent is dispersing agent NNO.It is described
Cement is common 42.5 grades of portland cements.The sand is the sand that mesh number is 200 mesh.The water-reducing agent is sodium lignin sulfonate.
0.10 times of blank quality of air entraining agent can be added in the blank, the air entraining agent is any one in calcium bicarbonate or sodium bicarbonate
Kind.0.2 times of water quality of lauryl alcohol and 0.06 times of water quality of surfactant, the surfactant can be added in the water
For neopelex.
By potassium carbonate, 1.3:4.0 is mixed in grinder in molar ratio with titanium dioxide, after mixed grinding 30h, must be mixed
Powder obtains pre- modified powder blank, by pre- modified powder base after calcining 25h under conditions of being 850 DEG C in temperature by mixed-powder
After material mass fraction is salt acid elution 8 times of 15%, and the dry 2h under the conditions of at a temperature of 90 °C, obtain modified powder；It will
The hydrochloric acid 1:45 in mass ratio that P123 and mass fraction are 18% is mixed in flask, and 5 times of P123 mass are added into flask
Mesitylene obtains treatment fluid after being stirred to react 4h under conditions of being 38 DEG C in temperature, and treatment fluid and ethyl orthosilicate are pressed quality
Than 30:1 mix, in temperature be 40 DEG C, revolving speed be 360r/min under conditions of, after being stirred to react for 24 hours, and in temperature be 105 DEG C
Under conditions of reflux crystallization for 24 hours, filter, obtain silica, it is 12% that silica is used to dehydrated alcohol and mass fraction respectively
Each Soxhlet extraction of hydrochloric acid dried 20h under conditions of being 35 DEG C in temperature after 1 day, obtains pretreated silicon dioxide, will pre-process two
Under conditions of silica is 580 DEG C in temperature after calcining at constant temperature 6h, pre- improved silica is obtained；By pre- improved silica and first
Benzene 1:40 in mass ratio mixing, and pre- improved silica quality is added into the mixture of pre- improved silica and toluene
1.0 times of trimethoxy γ-aminopropylsilane solution is 110 DEG C in temperature, under conditions of revolving speed is 400r/min, is stirred to react
After for 24 hours, filtering obtains improved silica blank, after improved silica blank is washed 8 times with dehydrated alcohol, is in temperature
It is dried in vacuo 12h under conditions of 40 DEG C, obtains improved silica；Improved silica is mixed with water 1:15 in mass ratio, and
To the modified powder and improved silica that 0.8 times of improved silica quality is added in the mixture of improved silica and water
The dispersing agent that 0.2 times of quality is 55 DEG C in temperature, and under conditions of revolving speed is 350r/min, after being stirred 6h, filtering must add
Add agent blank, after being dried in vacuo 8h under conditions of being 60 DEG C in temperature by additive blank, obtains additive；According to parts by weight,
Successively weigh: 60 parts of cement, 40 parts of water, 30 parts of sand, 8 parts of flyash, 40 parts of additives and 8 parts of water-reducing agents mix cement and water
Together in blender, and sand is added into blender, flyash, additive and water-reducing agent are 60 DEG C in temperature, revolving speed is
Under conditions of 400r/min, after being stirred 70min, blank is obtained, after blank injection molding, in solidifying 2 days under room temperature, is taken off
Mould obtains pressure-resistant anticracking sound-absorbing building block blank, by pressure-resistant anticracking sound-absorbing building block blank after conserving 28 days under room temperature, obtains pressure-resistant
Anticracking sound-absorbing building block.The P123 is polyethylene oxide-polypropylene oxide-polyethylene oxide.The trimethoxy aminopropyl silicon
Alkane solution is to mix trimethoxy γ-aminopropylsilane with toluene 1:8 in mass ratio, obtains trimethoxy γ-aminopropylsilane solution.Institute
Stating dispersing agent is dispersing agent NNO.The cement is common 42.5 grades of portland cements.The sand is the sand that mesh number is 200 mesh.Institute
Stating water-reducing agent is sodium lignin sulfonate.0.10 times of blank quality of air entraining agent can be added in the blank, the air entraining agent is carbon
Any one in sour hydrogen calcium or sodium bicarbonate.Can be added in the water 0.2 times of water quality lauryl alcohol and 0.06 times of water quality
Surfactant, the surfactant are neopelex.
The pressure-resistant anticracking sound-absorbing building block of 1 to 4 gained of example is subjected to performance detection, the specific detection method is as follows:
Room temperature compression strength by relevant criterion test sample and the absorptivity in 500Hz, 2000Hz and 4000Hz.Specific inspection
The results are shown in Table 1 for survey:
Table 1: performance detection table
By 1 testing result of table it is found that the pressure-resistant anticracking sound-absorbing building block of present invention gained has excellent compressive property and sound-absorbing effect.
Claims (10)
1. a kind of preparation method of pressure resistance anticracking sound-absorbing building block, which is characterized in that it is specific the preparation method comprises the following steps:
(1) P123 is mixed with hydrochloric acid 1:40~1:45 in mass ratio, and 4~5 times of P123 mass of mesitylene is added, stirred
After reaction, treatment fluid is obtained, treatment fluid is mixed with ethyl orthosilicate 22:1~30:1 in mass ratio, after being stirred to react, crystallization is taken out
Filter, obtains silica, dry by silica after Soxhlet extraction, obtains pretreated silicon dioxide, pretreated silicon dioxide is forged
It burns, obtains pre- improved silica；
(2) pre- improved silica is mixed with toluene 1:30~1:40 in mass ratio, and pre- improved silica quality is added
0.8~1.0 times of trimethoxy γ-aminopropylsilane solution after being stirred to react, is filtered, is washed, dry, obtains improved silica；
(3) pre- modified powder is mixed with water 1:8~1:10 in mass ratio, and four fourths of 2~3 times of pre- modified powder quality is added
Base amine, after being stirred to react, ultrasonic disperse is filtered, dry, obtains modified powder；
(4) improved silica is mixed with water 1:10~1:15 in mass ratio, and be added improved silica quality 0.6~
0.8 times of modified powder and 0.1~0.2 times of improved silica quality of dispersing agent after being stirred, filter, dry, must add
Add agent；
(5) according to parts by weight, it successively weighs: 50~60 parts of cement, 30~40 parts of water, 20~30 parts of sand, 5~8 parts of flyash,
20~40 parts of additives and 4~8 parts of water-reducing agents, cement are mixed with water, and sand is added, flyash, and additive and water-reducing agent stir
After mixing mixing, blank is obtained, blank injection molding is solidified, is demoulded, maintenance obtains pressure-resistant anticracking sound-absorbing building block.
2. a kind of preparation method of pressure-resistant anticracking sound-absorbing building block according to claim 1, it is characterised in that: step (1) institute
Stating P123 is polyethylene oxide-polypropylene oxide-polyethylene oxide.
3. a kind of preparation method of pressure-resistant anticracking sound-absorbing building block according to claim 1, it is characterised in that: step (2) institute
Stating trimethoxy γ-aminopropylsilane solution is to mix trimethoxy γ-aminopropylsilane with toluene 1:5~1:8 in mass ratio, obtains three
Methoxyl group γ-aminopropylsilane solution.
4. a kind of preparation method of pressure-resistant anticracking sound-absorbing building block according to claim 1, it is characterised in that: step (3) institute
Stating pre- modified powder is that 1.3:4.0 is mixed in molar ratio with titanium dioxide by potassium carbonate, is ground, and is calcined, and is washed, dry, is obtained pre-
Modified powder.
5. a kind of preparation method of pressure-resistant anticracking sound-absorbing building block according to claim 1, it is characterised in that: step (4) institute
Stating dispersing agent is dispersing agent NNO, any one in Dispersant MF or dispersing agent 5040.
6. a kind of preparation method of pressure-resistant anticracking sound-absorbing building block according to claim 1, it is characterised in that: step (5) institute
Stating cement is any one in common 42.5 grades of portland cements or common 42.5R grades of portland cement.
7. a kind of preparation method of pressure-resistant anticracking sound-absorbing building block according to claim 1, it is characterised in that: step (5) institute
Stating sand is the sand that mesh number is 200 mesh.
8. a kind of preparation method of pressure-resistant anticracking sound-absorbing building block according to claim 1, it is characterised in that: step (5) institute
Stating water-reducing agent is any one in sodium lignin sulfonate or melamine water reducing agent.
9. a kind of preparation method of pressure-resistant anticracking sound-absorbing building block according to claim 1, it is characterised in that: step (5) institute
0.05~0.10 times of blank quality of air entraining agent can be added by stating in blank, the air entraining agent is to appoint in calcium bicarbonate or sodium bicarbonate
It anticipates one kind.
10. a kind of preparation method of pressure-resistant anticracking sound-absorbing building block according to claim 1, it is characterised in that: step (5) institute
0.1~0.2 times of water quality of lauryl alcohol and 0.02~0.06 times of water quality of surfactant, the surface can be added by stating in water
Activating agent is any one in neopelex or lauryl sodium sulfate.
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| CN108640574A (en) * | 2018-05-15 | 2018-10-12 | 史茜赟 | A kind of preparation method of Anti-pressure acoustic tile |
| CN109678412A (en) * | 2019-01-22 | 2019-04-26 | 姜建国 | A kind of preparation method of waterproof pressure-resistant type autoclave aerated concrete building block |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108640574A (en) * | 2018-05-15 | 2018-10-12 | 史茜赟 | A kind of preparation method of Anti-pressure acoustic tile |
| CN109678412A (en) * | 2019-01-22 | 2019-04-26 | 姜建国 | A kind of preparation method of waterproof pressure-resistant type autoclave aerated concrete building block |
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