CN109265095A - A kind of preparation method of impervious frost thawing resistance concrete prefabricated component - Google Patents
A kind of preparation method of impervious frost thawing resistance concrete prefabricated component Download PDFInfo
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- CN109265095A CN109265095A CN201811322913.XA CN201811322913A CN109265095A CN 109265095 A CN109265095 A CN 109265095A CN 201811322913 A CN201811322913 A CN 201811322913A CN 109265095 A CN109265095 A CN 109265095A
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- water
- prefabricated component
- thawing resistance
- concrete prefabricated
- precast concrete
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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
-
- 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
- C04B2111/00293—Materials impermeable 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of preparation methods of impervious frost thawing resistance concrete prefabricated component, it is characterized in that: taking cement, sand, stone, polycarboxylate water-reducer and water, note is conserved in die for molding, dries obtained precast concrete after mixing；Mother liquor and diluent are taken by the mass percent of mother liquor 1~50%, diluent 50~99%, water-proofing treatment liquid is made after mixing；Precast concrete is placed in vacuum tank, sealing and being evacuated to vacuum tank internal pressure is 200~20000Pa, pours into water-proofing treatment liquid, takes out after impregnating 24~48h, it is dry, obtain impervious frost thawing resistance concrete prefabricated component.The present invention is formed on its surface waterproof layer in the case where acting on the structure and density that do not change precast concrete by low-pressure permeability, to which water and water vapour be effectively reduced to the infiltration inside precast concrete, so that it has delayed internal sabotage in Frozen-thawed cycled, to improve its impervious freezing and thawing performance.
Description
Technical field
The invention belongs to the preparations of precast concrete, are related to a kind of preparation side of impervious frost thawing resistance concrete prefabricated component
Method.Impervious frost thawing resistance concrete prefabricated component prepared by the present invention is particularly useful as assembled architecture prefabricated component.
Background technique
The infiltration of water is the common phenomenon of current concrete product (precast concrete), in cold district in use, by
Infiltration water freezing, which is formed by the swollen effect of ice, will become one of the principal element of its structural failure failure.Therefore, how effectively
Prevent it from permeating the freeze-thaw damage of the water expert by each neighborhood and focus of attention all the time.According to the jelly of concrete product
Melt failure mechanism, in the prior art, the technology of preparing of frost thawing resistance concrete mainly has two major classes: one kind is by the way that air entraining agent is added
Realize its internal formation stomata in large quantities to weaken its destruction, to reduce the stress formed inside it by freeze thawing
Freeze thawing resistance effect；But the addition of air entraining agent will will lead to the reduction of the density and intensity of normal concrete product itself, cause
The increase of its application cost and the diminution of application range.Another kind of frost thawing resistance concrete be by be added the reinforcements such as fiber make it is general
Logical concrete product becomes dense, on the one hand reduce the osmosis of water, on the other hand also enhances normal concrete
The intensity of product itself, to obtain good impervious freezing and thawing performance；But the addition of reinforcement will lead to normal concrete
The enhancing of the density and intensity of product itself will improve its use cost and reduce its heat preservation and deadening.Therefore, not
On the basis of changing its density and structure, it is extremely important for improving its freeze thawing performance.
Assembled architecture is a kind of novel fast construction mode greatly developed in recent years, is mainly characterized by big
The component of amount is produced in advance by workshop, assembled in situ again when use；Therefore, the transport, storage and protection of precast concrete will
One of development priority as the following concrete construction, developing impervious frost thawing resistance concrete prefabricated component will be quickening assembled architecture
Development provide a strong guarantee.
Summary of the invention
The purpose of the present invention is intended to overcome deficiency in the prior art, provides a kind of impervious frost thawing resistance concrete prefabricated component
Preparation method.The present invention provides a kind of impervious frost thawing resistance concrete on the basis of not changing concrete density itself and structure
The preparation method of prefabricated component has good impervious freeze thawing resistance characteristic using precast concrete prepared by the present invention, and common
Precast concrete compares, and mass loss rate reduces an order of magnitude after carrying out thawing circulation, and mechanical property improves 2
~3 times, and present device simple process, easy to operate, suitable large scale preparation production.
The contents of the present invention are: a kind of preparation method of impervious frost thawing resistance concrete prefabricated component, it is characterized in that including following
Step:
A, precast concrete is prepared:
Raw material cement, sand, stone, polycarboxylate water-reducer and water are taken, is mixed into mixture under stirring, (by size requirements) will mix
It is blank that material note, which is closed, in die for molding, and blank obtains precast concrete through maintenance, again after spontaneously drying；
B, water-proofing treatment liquid is prepared:
Mother liquor and diluent are taken by the mass percent of mother liquor 1~50%, diluent 50~99%, is water-proofing treatment after mixing
Liquid, (storage) are spare；
The mother liquor is any one of silane, siloxanes and silicon fluoride or two or more mixtures；
The diluent is any one of water, dehydrated alcohol, hydrofluoroether, butyl acetate, acetone and No. 200 industrial napthas
Or two or more mixture；
C, impervious frost thawing resistance concrete prefabricated component is prepared:
It precast concrete will be placed in the vacuum tank of fluid injection valve (made from step a), and seal and be evacuated to vacuum
Tank internal pressure is 200~20000Pa, opens the fluid injection valve of vacuum tank, pours into (made from step b) water-proofing treatment liquid to flooding
Not (entire) precast concrete (is kept under vacuum degree, that is, keeping vacuum tank internal pressure is the condition of 200~20000Pa
Under) impregnate 24~48h after take out, it is dry (to constant weight), obtain impervious frost thawing resistance concrete prefabricated component.
The preparation method of impervious frost thawing resistance concrete prefabricated component described in the contents of the present invention, it is characterized in that including following step
It is rapid:
A, precast concrete is prepared:
It is poly- by 200~300 mass parts cement, 400~450 mass parts sands, 500~700 mass parts stones, 0.5~1 mass parts
The quality proportioning of carboxylic acid water reducer and 100 mass parts water takes raw material cement, sand, stone, polycarboxylate water-reducer and water, under stirring
Mixture note is blank in die for molding by mixing 30~after sixty minutes at mixture, (pressing size requirements), blank through 19~
(to constant weight) after being conserved 28 days in the water of 21 DEG C of temperature, again after natural drying or the dry 2~12h of 60 DEG C of temperature, obtain mixed
Solidifying soil prefabricated component；
B, water-proofing treatment liquid is prepared:
Mother liquor and diluent are taken by the mass percent of mother liquor 1~50%, diluent 50~99%, mother liquor and diluent are mixed,
Ultrasound obtained water-proofing treatment liquid, (storage) is spare after 10~30 minutes under sealing (avoiding diluent, mother liquor volatilization)；
The mother liquor is any one of silane, siloxanes and silicon fluoride or two or more mixtures；
The diluent is any one of water, dehydrated alcohol, hydrofluoroether, butyl acetate, acetone and No. 200 industrial napthas
Or two or more mixture；
C, impervious frost thawing resistance concrete prefabricated component is prepared:
It precast concrete will be placed in the vacuum tank of fluid injection valve (made from step a), and seal and be evacuated to vacuum
Tank internal pressure is 200~20000Pa, opens the fluid injection valve of vacuum tank, pours into (made from step b) water-proofing treatment liquid to flooding
Not (entire) precast concrete (is kept under vacuum degree, that is, keeping vacuum tank internal pressure is the condition of 200~20000Pa
Under) take out after 24~48h of (continuous) immersion, spontaneously dried or 58~65 DEG C of temperature at dry 2~12h(to constant weight), that is, make
Obtain impervious frost thawing resistance concrete prefabricated component.
In the contents of the present invention: cement described in step a can be PO42.5 or PO42.5R cement (that is: strength grade
For the ordinary portland cement of 42.5 or 42.5R).
In the contents of the present invention: sand described in step a can be artificial sand or/and natural river sand, the fineness of sand
Modulus is 2~3.
In the contents of the present invention: stone described in step a can be rubble or/and cobble, the partial size of stone is 10~
30mm。
In the contents of the present invention: polycarboxylate water-reducer described in step a can be the limited public affairs of Guangdong Long Hu science and technology share
The P-29 type water-reducing agent of department's production, the 2651F type water-reducing agent of BASF Aktiengesellschaft's production, BASF Aktiengesellschaft produce
Horse green wood is expanded in 1641F type water-reducing agent, the TOJ800-10A type water-reducing agent of Wuhu Hong Ma new material Co., Ltd production and Wuhu
Expect any one of the TOJ800-10T type water-reducing agent of Co., Ltd's production.
In the contents of the present invention: silane described in step b can be octadecyl trichlorosilane alkane, methyl trimethoxy oxygroup
Silane, vinyltriethoxysilane, aminopropyltriethoxywerene werene, dodecyl triethoxysilane and iso-octyl
Any one of triethoxysilane.
In the contents of the present invention: siloxanes described in step b can be dimethyl silicone polymer, two silicon oxygen of hexamethyl
Any one of alkane, tetramethyl divinyl disiloxane and t etram-ethyltetravinylcyclotetrasiloxane.
In the contents of the present invention: silicon fluoride described in step b can be ten trifluoro octyl trimethoxy silanes, 13
Fluorine octyltri-ethoxysilane, 17 perfluoroalkyl polyether alkoxy silanes, 17 fluorine ruthenium trimethoxysilanes, 17 fluorine decyl, three second
Any one of three isopropoxy silane of oxysilane and 17 fluorine decyl.
In the contents of the present invention: the size of precast concrete described in step a can be designed freely according to actual needs,
Size will affect the design of vacuum tank size and the dosage of water-proofing treatment liquid.
In the contents of the present invention: vacuum tank described in step c is that a kind of internal pressure is adjusted, has fluid injection valve simultaneously
The salable tank of liquid can be fed into.
Compared with prior art, the present invention have following features and the utility model has the advantages that
(1) using the present invention, in structure (containing microstructure), density, size and the intensity for not changing precast concrete itself
Under conditions of, by bionics techniques (lotus leaf effect in bionical nature) by the hydrophobic grouping in silane, siloxanes or silicon fluoride
It is grafted onto the skin granulate surface of precast concrete, forms excellent waterproof layer, to prevent the osmosis of water, makes its water suction
Rate reduces an order of magnitude or more, to realize the raising of its impervious freezing and thawing performance；
(2) present invention constructs uniform waterproof layer on precast concrete surface by lotus leaf effect in bionical nature to have
Effect prevents water to the osmosis of precast concrete, is acted on by low-pressure permeability, in the structure for not changing precast concrete
With certain thickness uniform waterproof layer is formed on its surface in the case where density, significantly reduce water and water vapour to coagulation
Osmosis inside native prefabricated component, so that it has delayed internal sabotage in Frozen-thawed cycled, to improve its impervious freeze thawing resistance
Performance；
(3) using the present invention, the thickness of waterproof layer, thickness and vacuum tank can be adjusted by adjusting the internal pressure of vacuum tank
The inversely proportional relationship of internal pressure；
(4) present invention can be suitably applied to the preparation of the precast concrete of various types and size, equipment is simple, operation is easy, at
Sheet is cheap, can construct on a large scale, will have huge application prospect in assembled architecture field；
(5) preparation process of the present invention is simple, is suitble to large scale preparation and industrialized production, practical.
Detailed description of the invention
Fig. 1 is the surface wettability picture of the impervious frost thawing resistance concrete prefabricated component of the present invention；The figure illustrates that the present invention is anti-
The surface for seeping frost thawing resistance concrete prefabricated component has excellent hydrophobic performance；
Fig. 2 is that the quality of the impervious frost thawing resistance concrete prefabricated component of the present invention and normal concrete prefabricated component after freeze thawing resistance circulation is damaged
Mistake rate comparative diagram；The figure illustrates that the impervious frost thawing resistance concrete prefabricated component of the present invention has good impervious freeze thawing resistance characteristic；
Fig. 3 be the resistance to compression after freeze thawing resistance circulation of the impervious frost thawing resistance concrete prefabricated component of the present invention and normal concrete prefabricated component and
Flexural strength comparative diagram；The figure illustrates that the impervious frost thawing resistance concrete prefabricated component of the present invention has good impervious freeze thawing resistance special
Property.
Specific embodiment
The embodiments given below are intended to further illustrate the invention, but is not to be construed as to the scope of the present invention
Limitation, some nonessential improvement and tune that person skilled in art makes the present invention according to the content of aforementioned present invention
It is whole, still fall within protection scope of the present invention.
Embodiment 1:
A kind of preparation method of impervious frost thawing resistance concrete prefabricated component, including the following steps: by 1kg water, 2kg cement, 4.3kg sand
Note is in mold after machine mixing 30 minutes under normal temperature and pressure state for son, 7kg stone and 10g polycarboxylate water-reducer, at 20 DEG C
Constant weight is taken out and naturally dried to after conserving 28 days in water, obtains precast concrete；1kg dimethyl silicone polymer is added to
In 50kg200 industrial naptha and 10 minutes acquisition water-proofing treatment liquid of ultrasonic disperse；Precast concrete after drying is put in
It is sealed in vacuum tank and is evacuated to air pressure in tank and be down to 500Pa, opened under this vacuum environment at infusion valve perfusion waterproof
Liquid is managed, penetrates into it uniformly inside cement, keeps taking out and naturally dry to constant weight after air pressure continuous dipping 24 in tank, obtain
Impervious frost thawing resistance concrete prefabricated component.Since the hydrophobic grouping in dimethyl silicone polymer is grafted onto the surface layer of precast concrete
Particle surface forms excellent waterproof layer, so that the surface of the impervious frost thawing resistance concrete prefabricated component shows good hydrophobicity
(see Fig. 1 in Figure of description), and do not have hydrophobic spy by frost thawing resistance concrete obtained by addition air entraining agent or reinforcement
Property.
Embodiment 2:
A kind of preparation method of impervious frost thawing resistance concrete prefabricated component, including the following steps: by 1kg water, 3kg cement, 4kg sand
Son, the machine mixing under normal temperature and pressure state of 5kg stone and 20g polycarboxylate water-reducer are infused in mold after sixty minutes, at 20 DEG C
Constant weight is taken out and is naturally dried in lower water curing after 28 days, obtain precast concrete；By 17 fluorine decyl triethoxysilicane of 1kg
Alkane is added in 70kg hydrofluoroether and 20 minutes acquisition water-proofing treatment liquid of ultrasonic disperse；Precast concrete after drying is put in
It is sealed in vacuum tank and is evacuated to air pressure in tank and be down to 20000Pa, infusion valve opened under this vacuum environment, waterproof is perfused
Treatment fluid penetrates into it uniformly inside cement, keeps taking out after air pressure continuous dipping 48 in tank and drying is to constant weight, obtain anti-
Seep frost thawing resistance concrete prefabricated component.Due to the presence of waterproof layer, so that water makees the infiltration of impervious frost thawing resistance concrete prefabricated component
With substantially reducing, to slow down the swollen damage of ice that it is subject in Frozen-thawed cycled, Fig. 2 shows impervious anti-in Figure of description
Freeze thawing precast concrete reduces a quantity than mass loss rate of the normal concrete prefabricated component after different Frozen-thawed cycleds
Grade or more.
Embodiment 3:
A kind of preparation method of impervious frost thawing resistance concrete prefabricated component, including the following steps: by 1kg water, 2kg cement, 4.5kg sand
Note is in mold after machine mixing 30 minutes under normal temperature and pressure state for son, 6kg stone and 20g polycarboxylate water-reducer, at 20 DEG C
Constant weight is taken out and is naturally dried in lower water curing after 28 days, obtain precast concrete；By 17 perfluoroalkyl polyether alkoxy silane of 1kg
Simultaneously 30 minutes acquisition water-proofing treatment liquid of ultrasonic disperse is added in 60kg dehydrated alcohol；Precast concrete after drying is put in
It is sealed in vacuum tank and is evacuated to air pressure in tank and be down to 5000Pa, opened under this vacuum environment at infusion valve perfusion waterproof
Liquid is managed, penetrates into it uniformly inside cement, keeps taking out after air pressure continuous dipping 36 in tank and drying is to constant weight, obtain impervious
Frost thawing resistance concrete prefabricated component.Due to the presence of waterproof layer, so that osmosis of the water to impervious frost thawing resistance concrete prefabricated component
It substantially reduces, to slow down the swollen damage of ice that it is subject in Frozen-thawed cycled, Fig. 3 is shown impervious freeze proof in Figure of description
Melt precast concrete and improves 2-3 times than resistance to compression of the normal concrete prefabricated component after different Frozen-thawed cycleds and flexural strength.
Embodiment 4:
A kind of preparation method of impervious frost thawing resistance concrete prefabricated component, including the following steps:
A, precast concrete is prepared:
Raw material cement, sand, stone, polycarboxylate water-reducer and water are taken, is mixed into mixture under stirring, (by size requirements) will mix
It is blank that material note, which is closed, in die for molding, and blank obtains precast concrete through maintenance, again after spontaneously drying；
B, water-proofing treatment liquid is prepared:
Mother liquor and diluent are taken by the mass percent of mother liquor 1%, diluent 99%, is water-proofing treatment liquid, (storage) after mixing
It is spare；
The mother liquor is any one of silane, siloxanes and silicon fluoride or two or more mixtures；
The diluent is any one of water, dehydrated alcohol, hydrofluoroether, butyl acetate, acetone and No. 200 industrial napthas
Or two or more mixture；
C, impervious frost thawing resistance concrete prefabricated component is prepared:
It precast concrete will be placed in the vacuum tank of fluid injection valve (made from step a), and seal and be evacuated to vacuum
Tank internal pressure is 200Pa, opens the fluid injection valve of vacuum tank, to pour into water-proofing treatment liquid (made from step b) (whole to flooding
It is a) precast concrete, (keeping under vacuum degree, i.e., under conditions of holding vacuum tank internal pressure is 200) impregnates to be taken afterwards for 24 hours
Out, dry (to constant weight), obtains impervious frost thawing resistance concrete prefabricated component.
Embodiment 5:
A kind of preparation method of impervious frost thawing resistance concrete prefabricated component, including the following steps:
A, precast concrete is prepared:
Raw material cement, sand, stone, polycarboxylate water-reducer and water are taken, is mixed into mixture under stirring, (by size requirements) will mix
It is blank that material note, which is closed, in die for molding, and blank obtains precast concrete through maintenance, again after spontaneously drying；
B, water-proofing treatment liquid is prepared:
Mother liquor and diluent are taken by the mass percent of mother liquor 50%, diluent 50%, is water-proofing treatment liquid, (storage) after mixing
It is spare；
The mother liquor is any one of silane, siloxanes and silicon fluoride or two or more mixtures；
The diluent is any one of water, dehydrated alcohol, hydrofluoroether, butyl acetate, acetone and No. 200 industrial napthas
Or two or more mixture；
C, impervious frost thawing resistance concrete prefabricated component is prepared:
It precast concrete will be placed in the vacuum tank of fluid injection valve (made from step a), and seal and be evacuated to vacuum
Tank internal pressure is 20000Pa, opens the fluid injection valve of vacuum tank, to pour into water-proofing treatment liquid (made from step b) (whole to flooding
It is a) precast concrete, after (keeping under vacuum degree, i.e., under conditions of holding vacuum tank internal pressure is 20000Pa) impregnates 48h
It takes out, dry (to constant weight) obtains impervious frost thawing resistance concrete prefabricated component.
Embodiment 6:
A kind of preparation method of impervious frost thawing resistance concrete prefabricated component, including the following steps:
A, precast concrete is prepared:
Raw material cement, sand, stone, polycarboxylate water-reducer and water are taken, is mixed into mixture under stirring, (by size requirements) will mix
It is blank that material note, which is closed, in die for molding, and blank obtains precast concrete through maintenance, again after spontaneously drying；
B, water-proofing treatment liquid is prepared:
Mother liquor and diluent are taken by the mass percent of mother liquor 25%, diluent 75%, is water-proofing treatment liquid, (storage) after mixing
It is spare；
The mother liquor is any one of silane, siloxanes and silicon fluoride or two or more mixtures；
The diluent is any one of water, dehydrated alcohol, hydrofluoroether, butyl acetate, acetone and No. 200 industrial napthas
Or two or more mixture；
C, impervious frost thawing resistance concrete prefabricated component is prepared:
It precast concrete will be placed in the vacuum tank of fluid injection valve (made from step a), and seal and be evacuated to vacuum
Tank internal pressure is 10000Pa, opens the fluid injection valve of vacuum tank, to pour into water-proofing treatment liquid (made from step b) (whole to flooding
It is a) precast concrete, after (keeping under vacuum degree, i.e., under conditions of holding vacuum tank internal pressure is 10000Pa) impregnates 36h
It takes out, dry (to constant weight) obtains impervious frost thawing resistance concrete prefabricated component.
Embodiment 7:
A kind of preparation method of impervious frost thawing resistance concrete prefabricated component, including the following steps:
A, precast concrete is prepared:
By 200 mass parts cement, 400 mass parts sands, 500 mass parts stones, 0.5 mass parts polycarboxylate water-reducer and 100 matter
The quality proportioning of amount part water takes raw material cement, sand, stone, polycarboxylate water-reducer and water, at mixed after stirring lower mixing 30 minutes
Close material, mixture note is blank in die for molding by (press size requirements), blank after being conserved 28 days in the water of 19 DEG C of temperature,
Again after natural drying or the dry 2h of 60 DEG C of temperature, precast concrete is obtained；
B, water-proofing treatment liquid is prepared:
Mother liquor and diluent are taken by the mass percent of mother liquor 1%, diluent 99%, mother liquor and diluent are mixed, sealing (avoids
Diluent, mother liquor volatilization) under ultrasound after ten minutes, obtain water-proofing treatment liquid, (storage) is spare；
The mother liquor is any one of silane, siloxanes and silicon fluoride or two or more mixtures；
The diluent is any one of water, dehydrated alcohol, hydrofluoroether, butyl acetate, acetone and No. 200 industrial napthas
Or two or more mixture；
C, impervious frost thawing resistance concrete prefabricated component is prepared:
It precast concrete will be placed in the vacuum tank of fluid injection valve (made from step a), and seal and be evacuated to vacuum
Tank internal pressure is 200Pa, opens the fluid injection valve of vacuum tank, to pour into water-proofing treatment liquid (made from step b) (whole to flooding
It is a) precast concrete, (keeping under vacuum degree, i.e., under conditions of holding vacuum tank internal pressure is 200Pa) is (continuous) to impregnate
It takes out afterwards for 24 hours, through 12h dry at natural drying or 58 DEG C of temperature, obtains impervious frost thawing resistance concrete prefabricated component.
Embodiment 8:
A kind of preparation method of impervious frost thawing resistance concrete prefabricated component, including the following steps:
A, precast concrete is prepared:
By 300 mass parts cement, 450 mass parts sands, 700 mass parts stones, 1 mass parts polycarboxylate water-reducer and 100 mass
The quality proportioning of part water takes raw material cement, sand, stone, polycarboxylate water-reducer and water, stirs lower mixing after sixty minutes at mixing
Mixture note is blank in die for molding by material, (press size requirements), blank after being conserved 28 days in the water of 21 DEG C of temperature, again
(to constant weight) after natural drying or the dry 12h of 60 DEG C of temperature, precast concrete is obtained；
B, water-proofing treatment liquid is prepared:
Mother liquor and diluent are taken by the mass percent of mother liquor 50%, diluent 50%, mother liquor and diluent are mixed, sealing (is kept away
Exempt from diluent, mother liquor volatilization) under ultrasound 30 minutes after, obtain water-proofing treatment liquid, (storage) is spare；
The mother liquor is any one of silane, siloxanes and silicon fluoride or two or more mixtures；
The diluent is any one of water, dehydrated alcohol, hydrofluoroether, butyl acetate, acetone and No. 200 industrial napthas
Or two or more mixture；
C, impervious frost thawing resistance concrete prefabricated component is prepared:
It precast concrete will be placed in the vacuum tank of fluid injection valve (made from step a), and seal and be evacuated to vacuum
Tank internal pressure is 20000Pa, opens the fluid injection valve of vacuum tank, to pour into water-proofing treatment liquid (made from step b) (whole to flooding
It is a) precast concrete, (keeping under vacuum degree, i.e., under conditions of holding vacuum tank internal pressure is 20000Pa) (continuous) leaching
It is taken out after bubble 48h, through 2h dry at natural drying or 65 DEG C of temperature, obtains impervious frost thawing resistance concrete prefabricated component.
Embodiment 9:
A kind of preparation method of impervious frost thawing resistance concrete prefabricated component, including the following steps:
A, precast concrete is prepared:
By 250 mass parts cement, 425 mass parts sands, 600 mass parts stones, 0.75 mass parts polycarboxylate water-reducer and 100 matter
The quality proportioning of amount part water takes raw material cement, sand, stone, polycarboxylate water-reducer and water, at mixed after stirring lower mixing 45 minutes
Close material, mixture note is blank in die for molding by (press size requirements), blank after being conserved 28 days in the water of 20 DEG C of temperature,
Again after natural drying or the dry 7h of 60 DEG C of temperature, precast concrete is obtained；
B, water-proofing treatment liquid is prepared:
Mother liquor and diluent are taken by the mass percent of mother liquor 26%, diluent 74%, mother liquor and diluent are mixed, sealing (is kept away
Exempt from diluent, mother liquor volatilization) under ultrasound after twenty minutes, obtain water-proofing treatment liquid, (storage) is spare；
The mother liquor is any one of silane, siloxanes and silicon fluoride or two or more mixtures；
The diluent is any one of water, dehydrated alcohol, hydrofluoroether, butyl acetate, acetone and No. 200 industrial napthas
Or two or more mixture；
C, impervious frost thawing resistance concrete prefabricated component is prepared:
It precast concrete will be placed in the vacuum tank of fluid injection valve (made from step a), and seal and be evacuated to vacuum
Tank internal pressure is 10100Pa, opens the fluid injection valve of vacuum tank, to pour into water-proofing treatment liquid (made from step b) (whole to flooding
It is a) precast concrete, (keeping under vacuum degree, i.e., under conditions of holding vacuum tank internal pressure is 10100Pa) (continuous) leaching
It is taken out after bubble 36h, through 7h dry under natural drying or temperature 60 C, obtains impervious frost thawing resistance concrete prefabricated component.
Embodiment 10:
A kind of preparation method of impervious frost thawing resistance concrete prefabricated component, including the following steps:
A, precast concrete is prepared:
By 220 mass parts cement, 415 mass parts sands, 550 mass parts stones, 0.65 mass parts polycarboxylate water-reducer and 100 matter
The quality proportioning of amount part water takes raw material cement, sand, stone, polycarboxylate water-reducer and water, stirs lower mixing after forty minutes at mixed
Close material, mixture note is blank in die for molding by (press size requirements), blank after being conserved 28 days in the water of 20 DEG C of temperature,
Again after natural drying or the dry 6h of 60 DEG C of temperature, precast concrete is obtained；
B, water-proofing treatment liquid is prepared:
Mother liquor and diluent are taken by the mass percent of mother liquor 20%, diluent 80%, mother liquor and diluent are mixed, sealing (is kept away
Exempt from diluent, mother liquor volatilization) under ultrasound 16 minutes after, obtain water-proofing treatment liquid, (storage) is spare；
The mother liquor is any one of silane, siloxanes and silicon fluoride or two or more mixtures；
The diluent is any one of water, dehydrated alcohol, hydrofluoroether, butyl acetate, acetone and No. 200 industrial napthas
Or two or more mixture；
C, impervious frost thawing resistance concrete prefabricated component is prepared:
It precast concrete will be placed in the vacuum tank of fluid injection valve (made from step a), and seal and be evacuated to vacuum
Tank internal pressure is 8000Pa, opens the fluid injection valve of vacuum tank, to pour into water-proofing treatment liquid (made from step b) (whole to flooding
It is a) precast concrete, (keeping under vacuum degree, i.e., under conditions of holding vacuum tank internal pressure is 8000Pa) is (continuous) to impregnate
It is taken out after 30h, through 6h dry under natural drying or temperature 60 C, obtains impervious frost thawing resistance concrete prefabricated component.
Embodiment 11:
A kind of preparation method of impervious frost thawing resistance concrete prefabricated component, including the following steps:
A, precast concrete is prepared:
By 280 mass parts cement, 440 mass parts sands, 650 mass parts stones, 0.8 mass parts polycarboxylate water-reducer and 100 matter
The quality proportioning of amount part water takes raw material cement, sand, stone, polycarboxylate water-reducer and water, at mixed after stirring lower mixing 50 minutes
Close material, mixture note is blank in die for molding by (press size requirements), blank after being conserved 28 days in the water of 21 DEG C of temperature,
Again after natural drying or the dry 10h of 60 DEG C of temperature, precast concrete is obtained；
B, water-proofing treatment liquid is prepared:
Mother liquor and diluent are taken by the mass percent of mother liquor 40%, diluent 60%, mother liquor and diluent are mixed, sealing (is kept away
Exempt from diluent, mother liquor volatilization) under ultrasound 25 minutes after, obtain water-proofing treatment liquid, (storage) is spare；
The mother liquor is any one of silane, siloxanes and silicon fluoride or two or more mixtures；
The diluent is any one of water, dehydrated alcohol, hydrofluoroether, butyl acetate, acetone and No. 200 industrial napthas
Or two or more mixture；
C, impervious frost thawing resistance concrete prefabricated component is prepared:
It precast concrete will be placed in the vacuum tank of fluid injection valve (made from step a), and seal and be evacuated to vacuum
Tank internal pressure is 15000Pa, opens the fluid injection valve of vacuum tank, to pour into water-proofing treatment liquid (made from step b) (whole to flooding
It is a) precast concrete, (keeping under vacuum degree, i.e., under conditions of holding vacuum tank internal pressure is 15000Pa) (continuous) leaching
It is taken out after bubble 40h, through 10h dry at natural drying or 62 DEG C of temperature, obtains impervious frost thawing resistance concrete prefabricated component.
Embodiment 12:
A kind of preparation method of impervious frost thawing resistance concrete prefabricated component, including the following steps:
A, precast concrete is prepared:
It is poly- by 200~300 mass parts cement, 400~450 mass parts sands, 500~700 mass parts stones, 0.5~1 mass parts
The quality proportioning of carboxylic acid water reducer and 100 mass parts water takes raw material cement, sand, stone, polycarboxylate water-reducer and water, under stirring
Mixture note is blank in die for molding by mixing 30~after sixty minutes at mixture, (pressing size requirements), blank through 19~
(to constant weight) after being conserved 28 days in the water of 21 DEG C of temperature, again after natural drying or the dry 2~12h of 60 DEG C of temperature, obtain mixed
Solidifying soil prefabricated component；
B, water-proofing treatment liquid is prepared:
Mother liquor and diluent are taken by the mass percent of mother liquor 1~50%, diluent 50~99%, mother liquor and diluent are mixed,
Ultrasound obtained water-proofing treatment liquid, (storage) is spare after 10~30 minutes under sealing (avoiding diluent, mother liquor volatilization)；
The mother liquor is any one of silane, siloxanes and silicon fluoride or two or more mixtures；
The diluent is any one of water, dehydrated alcohol, hydrofluoroether, butyl acetate, acetone and No. 200 industrial napthas
Or two or more mixture；
C, impervious frost thawing resistance concrete prefabricated component is prepared:
It precast concrete will be placed in the vacuum tank of fluid injection valve (made from step a), and seal and be evacuated to vacuum
Tank internal pressure is 200~20000Pa, opens the fluid injection valve of vacuum tank, pours into (made from step b) water-proofing treatment liquid to flooding
Not (entire) precast concrete (is kept under vacuum degree, that is, keeping vacuum tank internal pressure is the condition of 200~20000Pa
Under) take out after 24~48h of (continuous) immersion, spontaneously dried or 58~65 DEG C of temperature at dry 2~12h(to constant weight), that is, make
Obtain impervious frost thawing resistance concrete prefabricated component.
In above-described embodiment: cement described in step a is that (that is: strength grade is 42.5 to PO42.5 or PO42.5R cement
Or the ordinary portland cement of 42.5R).
In above-described embodiment: sand described in step a is artificial sand or/and natural river sand, and the fineness modulus of sand is 2
~3.
In above-described embodiment: stone described in step a is rubble or/and cobble, and the partial size of stone is 10~30mm.
In above-described embodiment: polycarboxylate water-reducer described in step a is Guangdong Longhu Technology Shares Co., Ltd.'s production
P-29 type water-reducing agent, BASF Aktiengesellschaft production 2651F type water-reducing agent, BASF Aktiengesellschaft production 1641F type
It is limited that horse new material is expanded in water-reducing agent, the TOJ800-10A type water-reducing agent of Wuhu Hong Ma new material Co., Ltd production and Wuhu
Any one of the TOJ800-10T type water-reducing agent of company's production.
In above-described embodiment 4~12: silane described in step b is octadecyl trichlorosilane alkane, methyl trimethoxy oxygroup silicon
Alkane, vinyltriethoxysilane, aminopropyltriethoxywerene werene, dodecyl triethoxysilane and iso-octyl three
Any one of Ethoxysilane.
In above-described embodiment 4~12: siloxanes described in step b is dimethyl silicone polymer, two silicon oxygen of hexamethyl
Any one of alkane, tetramethyl divinyl disiloxane and t etram-ethyltetravinylcyclotetrasiloxane.
In above-described embodiment 4~12: silicon fluoride described in step b is ten trifluoro octyl trimethoxy silanes, ten trifluoros
Octyltri-ethoxysilane, 17 perfluoroalkyl polyether alkoxy silanes, 17 fluorine ruthenium trimethoxysilanes, 17 fluorine decyl, three ethoxy
Any one of three isopropoxy silane of base silane and 17 fluorine decyl.
In above-described embodiment: the size of precast concrete described in step a can be designed freely according to actual needs, big
The dosage of the small design that will affect vacuum tank size and water-proofing treatment liquid.
In above-described embodiment: vacuum tank described in step c is adjusted for a kind of internal pressure, there is fluid injection valve and can
It is fed into the salable tank of liquid.
In above-described embodiment: used each raw material is commercial product.
In above-described embodiment: it is not specifically specified in used percentage, be quality (weight) percentage or
Well known to a person skilled in the art percentages；Described quality (weight) part can be gram or kilogram.
In above-described embodiment: technological parameter (temperature, time, concentration, pressure etc.) and dosage of each component number in each step
Value etc. is range, and any point is applicable.
The technology contents being not specifically delineated in the content of present invention and above-described embodiment are compared with technology.
The present invention is not limited to the above embodiments, can be implemented described in the content of present invention and has the good result.
Claims (9)
1. a kind of preparation method of impervious frost thawing resistance concrete prefabricated component, it is characterized by including the following steps:
A, precast concrete is prepared:
Raw material cement, sand, stone, polycarboxylate water-reducer and water are taken, is mixed into mixture under stirring, mixture is infused in mold
In be shaped to blank, blank obtains precast concrete through maintenance, again after spontaneously drying；
B, water-proofing treatment liquid is prepared:
Mother liquor and diluent are taken by the mass percent of mother liquor 1~50%, diluent 50~99%, is water-proofing treatment after mixing
Liquid, it is spare；
The mother liquor is any one of silane, siloxanes and silicon fluoride or two or more mixtures；
The diluent is any one of water, dehydrated alcohol, hydrofluoroether, butyl acetate, acetone and No. 200 industrial napthas
Or two or more mixture；
C, impervious frost thawing resistance concrete prefabricated component is prepared:
Precast concrete is placed in the vacuum tank of fluid injection valve, seals and be evacuated to vacuum tank internal pressure and be
200~20000Pa opens the fluid injection valve of vacuum tank, pours into water-proofing treatment liquid to precast concrete is flooded, impregnate 24~
It is taken out after 48h, it is dry, obtain impervious frost thawing resistance concrete prefabricated component.
2. it is characterized by including the following steps by the preparation method of impervious frost thawing resistance concrete prefabricated component described in claim 1:
A, precast concrete is prepared:
It is poly- by 200~300 mass parts cement, 400~450 mass parts sands, 500~700 mass parts stones, 0.5~1 mass parts
The quality proportioning of carboxylic acid water reducer and 100 mass parts water takes raw material cement, sand, stone, polycarboxylate water-reducer and water, under stirring
Mixing 30~and after sixty minutes at mixture, it is blank, water of the blank through 19~21 DEG C of temperature that mixture, which is infused in die for molding,
After middle maintenance 28 days, again after natural drying or the dry 2~12h of 60 DEG C of temperature, precast concrete is obtained；
B, water-proofing treatment liquid is prepared:
Mother liquor and diluent are taken by the mass percent of mother liquor 1~50%, diluent 50~99%, mother liquor and diluent are mixed,
The lower ultrasound of sealing obtained water-proofing treatment liquid after 10~30 minutes, spare；
The mother liquor is any one of silane, siloxanes and silicon fluoride or two or more mixtures；
The diluent is any one of water, dehydrated alcohol, hydrofluoroether, butyl acetate, acetone and No. 200 industrial napthas
Or two or more mixture；
C, impervious frost thawing resistance concrete prefabricated component is prepared:
Precast concrete is placed in the vacuum tank of fluid injection valve, seals and be evacuated to vacuum tank internal pressure and be
200~20000Pa opens the fluid injection valve of vacuum tank, pours into water-proofing treatment liquid to precast concrete is flooded, impregnate 24~
It is taken out after 48h, through 2~12h dry at natural drying or 58~65 DEG C of temperature, obtains impervious frost thawing resistance concrete prefabricated component.
3. the preparation method of impervious frost thawing resistance concrete prefabricated component as claimed in claim 1 or 2 is pressed, it is characterized in that: described in step a
Cement be PO42.5 or PO42.5R cement.
4. the preparation method of impervious frost thawing resistance concrete prefabricated component as claimed in claim 1 or 2 is pressed, it is characterized in that: described in step a
Sand be artificial sand or/and natural river sand, the fineness modulus of sand is 2~3.
5. the preparation method of impervious frost thawing resistance concrete prefabricated component as claimed in claim 1 or 2 is pressed, it is characterized in that: described in step a
Stone be rubble or/and cobble, the partial size of stone is 10~30mm.
6. the preparation method of impervious frost thawing resistance concrete prefabricated component as claimed in claim 1 or 2 is pressed, it is characterized in that: described in step a
Polycarboxylate water-reducer be Guangdong Longhu Technology Shares Co., Ltd. production P-29 type water-reducing agent, BASF Aktiengesellschaft production
2651F type water-reducing agent, BASF Aktiengesellschaft production 1641F type water-reducing agent, Wuhu Hong Ma new material Co., Ltd production
TOJ800-10A type water-reducing agent and Wuhu Hong Ma new material Co., Ltd production TOJ800-10T type water-reducing agent in appoint
It is a kind of.
7. the preparation method of impervious frost thawing resistance concrete prefabricated component as claimed in claim 1 or 2 is pressed, it is characterized in that: institute in step b
The silane stated is octadecyl trichlorosilane alkane, methyltrimethoxysilane, vinyltriethoxysilane, three ethoxy of aminopropyl
Any one of base silane, dodecyl triethoxysilane and isooctyltriethoxysilane.
8. the preparation method of impervious frost thawing resistance concrete prefabricated component as claimed in claim 1 or 2 is pressed, it is characterized in that: institute in step b
The siloxanes stated is dimethyl silicone polymer, hexamethyldisiloxane, tetramethyl divinyl disiloxane and tetramethyl four
Any one of vinyl cyclotetrasiloxane.
9. the preparation method of impervious frost thawing resistance concrete prefabricated component as claimed in claim 1 or 2 is pressed, it is characterized in that: institute in step b
The silicon fluoride stated is ten trifluoro octyl trimethoxy silanes, tridecafluoro-n-octyltriethoxysilane, 17 perfluoroalkyl polyether alkoxyl silicones
Alkane, three isopropoxy silane of 17 fluorine ruthenium trimethoxysilanes, heptadecafluorodecyl triethoxysilane and 17 fluorine decyl
Any one of.
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Cited By (1)
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