CN106625998B - Marine ecology engineering corrosion resistant concrete prefabricated component and preparation method thereof - Google Patents
Marine ecology engineering corrosion resistant concrete prefabricated component and preparation method thereof Download PDFInfo
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- CN106625998B CN106625998B CN201710007567.5A CN201710007567A CN106625998B CN 106625998 B CN106625998 B CN 106625998B CN 201710007567 A CN201710007567 A CN 201710007567A CN 106625998 B CN106625998 B CN 106625998B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
- B28B1/525—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement containing organic fibres, e.g. wood fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/02—Conditioning the material prior to shaping
-
- 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
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
- C04B14/068—Specific natural sands, e.g. sea -, beach -, dune - or desert sand
-
- 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
-
- 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
- C04B20/04—Heat 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
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The present invention relates to a kind of marine ecology engineering corrosion resistant concrete prefabricated components and preparation method thereof, the precast concrete is process by concrete base-material, fiber reinforcement wadding and steel muscle beam, wherein the addition quality of fiber reinforcement wadding is the 3 5% of concrete binder volume, and every 1 cubic meter of concrete base-material is formed by the Raw material processing of following weight：300 400kg of portland cement, 600 800kg of desalted sea sand, 800 1000kg of rubble, 1.2 4kg of cement water reducing agent, appropriate amount of water.The present invention be contemplated that provide it is a kind of use desalted sea sand for sand material, include the marine ecology engineering corrosion resistant concrete prefabricated component of fiber reinforcement wadding, with traditional precast concrete the difference is that：1, desalted sea sand derives from a wealth of sources, convenient material drawing, congenital to be infiltrated or rinsed by seawater, compared with river sand or other sandstone sea water resistance corrosion function admirables；2, fiber reinforcement wadding has good toughness, is equivalent to the reinforcing rib for increasing several micro- shapes in precast concrete, can greatly improve the intensity of concrete material.
Description
Technical field
The present invention relates to a kind of marine ecology engineering corrosion resistant concrete prefabricated components and preparation method thereof.
Background technology
With the large-scale economic society construction in China, especially sea island ecosystem job facilities construction increases increasingly, existing rank
The facility of section, common water-proof concrete prefabricated component processing can not resist the long-time immersion of seawater, corrode, and reduce making for facility
With service life and using effect.For marine ecology engineering, existing marine ecology engineering concrete facility is due to by sea
Water erosion is highly vulnerable to breakage, and influences the effect of marine ecology engineering ecology construction.In order to improve marine ecology engineering concrete facility
Service life, can effectively resistant to sea water corrode, need that a kind of feedstock capture is easy to process, strong adhesive force, there is anti-sea water intrusion
The high performance concrete of characteristic, for the processing of seawater marine ecology engineering prefabricated component.
Invention content
It is an object of the invention to solve the deficiencies in the prior art, it is pre- to provide a kind of marine ecology engineering corrosion resistant concrete
Product.
It is another object of the present invention to provide a kind of preparation sides of marine ecology engineering corrosion resistant concrete prefabricated component
Method.
The technical solution adopted by the present invention to solve the technical problems is：
Marine ecology engineering corrosion resistant concrete prefabricated component, the precast concrete is by concrete base-material, fiber reinforcement
Wadding and steel muscle beam are process, wherein the addition quality of fiber reinforcement wadding be concrete binder volume 3-5%, every 1
Cubic meter of concrete base-material is formed by the Raw material processing of following weight：Portland cement 300-400kg, desalted sea sand 600-
800kg, rubble 800-1000kg, cement water reducing agent 1.2-4kg, appropriate amount of water；Under the preparation method of precast concrete includes
Row step：
S1：Prepare concrete base-material：
(1)：The volume of default concrete base-material calculates each raw material dosage according to volume, weighs the silicate cement of formula ratio
Mud, desalted sea sand and rubble are first dry to stir uniformly mixed in blender, then add that suitable quantity of water is wet to stir 20-30min；
(2)：Fiber reinforcement wadding suitable quantity of water is fully dispersed, it is then added in (1) and stirs 30-45min to fully
Even, then moisturizing to sufficient volume is added the water-reducing agent of formula ratio, is evenly stirred until regulation slump；
S2：Mold is purchased, steel muscle beam is placed in mold；
S3：Cast：It will be in concrete base-material injection mold made from S1；
S4：Precuring：Mold is placed in precuring room after cast, in 60-70 DEG C of precuring 1-2h；
S5：Demoulding, cutting：Mold is sloughed after precuring, is then cut, and precast concrete semi-finished product are obtained；
S6：It is steam-cured：The precast concrete semi-finished product that step S5 is obtained are placed in the steam-cured acquisition coagulation of steam-cured indoor constant pressure
Native prefabricated component finished product, the steam-cured indoor steam pressure are 1.2-1.4Mpa, and temperature is 160-180 DEG C, the constant pressure steam-cured time
For 2-3h.
Preferably, the desalted sea sand is prepared according to the following steps acquisition：
(1) sea sand pre-sifted：Sea sand is sieved, the sea sand that grain size is less than 5mm is obtained；
(2) sea sand purged with fresh water：By the sea sand of step (1) and desalinize seawater mixed in the ratio of quality and volume ratio 2: 5-6
It closes, appropriate diatomite is added, 1-2h is handled in stirring at normal temperature；
(3) it detaches：Sea sand after step (2) purified treatment is drained；
(4) it is heat-treated：The sea sand that step (3) is drained heats 1-1.5h in 150-160 DEG C, then sieves again,
Desalted sea sand finished product is obtained after removing diatomite.
Preferably, the nylon yarn that the fiber reinforcement wadding is length 30-50mm or the bamboo charcoal that length is 10-20mm
Fiber.
The present invention be contemplated that provide it is a kind of use desalted sea sand for sand material, include the marine ecology work of fiber reinforcement wadding
Journey corrosion resistant concrete prefabricated component, with traditional precast concrete the difference is that：1, desalted sea sand derives from a wealth of sources, and takes
Material is convenient, congenital to be infiltrated or rinsed by seawater, compared with river sand or other sandstone sea water resistance corrosion function admirables；2, fiber reinforcement serves as a contrast
Material has good toughness, is equivalent to the reinforcing rib for increasing several micro- shapes in precast concrete, can greatly improve coagulation
The intensity of native prefabricated component.
There is activated carbon huge specific surface area and abundant three dimensional pore structures, high-specific surface area to be conducive to chlorion
Adsorption storage, the chlorion for adsorbing sea sand leaching, adsorption effect is splendid, and in follow-up heat treatment process, can also adsorb
It is heat-treated the chlorine of effusion, avoids air pollution.
Preferably, described desalinize seawater prepares as follows：
(1) (1) pre-processes：Nearly seawater leads to cistern, and the water that stored seawater total volume 1-1.5% mass is added is insoluble
Property glucan, stir, in room temperature natural flocculation settle 3-4h；
The water-insoluble glucan of macromolecule has effects that adsorb and flocculate (to produce between coastal seawater pollutant
Raw bridge formation function accelerates pollutant sedimentation), meanwhile, beavy metal impurity can be adsorbed and small molecule is difficult to flocculated ingredient, flocculated
Pretreating effect is good, easy to operate；
(2) it purifies：Step (1) pretreated coastal seawater is pumped into filtration tank, and modified coral is filled in the filtration tank
Coral sand filler, pretreated coastal seawater are purified through the filling adsorption in filtration tank, fully remove removing chloride and impurity, are obtained
Sea sand desalting water.
Preferably, the processing method of the modified coral sand filler is as follows：
(a) coral sand is crushed, chooses the coral sand of particle size range 0.4-0.6mm, visible foreign is removed with seawater flushing, shone
It is dry spare；
(b) modifying agent is configured, magnetic order mesoporous medium and organobentonite are uniformly mixed, appropriate purified water is added to stir
Uniformly, with sodium hydroxide tune pH value to 7.2-7.6, modifying agent is obtained；
(c) small in stirring at normal temperature infiltration 4-5 by modification in the modifying agent of the coral sand of step (a) input step (b)
When, sodium hydroxide maintenance system pH value 7.2-7.6 is added in impregnation process；
(d) coral sand after step (c) modification after 280-320 DEG C of high-temperature roasting 0.5-1h, is cooled to through draining
Room temperature is used as filler to load filtration tank.
Hole in coral sand includes the inner pore of intergranular outer hole and particle itself, porosity 50%.Phase
For other prefabricated components, coral sand is light, porous, gathers materials on the spot on island, and coral sand is modified and prepares filtrate, uses
In the purification of engineering on an island water, good purification, filtrate is at low cost, finds, adopts during present inventor's experiment
The a degree of purification of seawater may be implemented with natural coral sand, but since coral sand porosity is high and aperture is larger, inhales
The function that impurity is stored after attached impurity is weak, and impurity is easily again introduced into seawater in filter process, influences clean-up effect, therefore, this
The inventor of application is modified natural coral sand, to further increase adsorption capacity, while substantially improving storage impurity
Ability；
Preferably, the mass fraction of magnetic order mesoporous medium is 0.5-1.2%, bentonite quality in modifying agent
Score is 0.8-1.6%.
Preferably, the order mesoporous medium of magnetism is magnetic ordered mesoporous carbon and/or magnetic order mesoporous nickel ferrite based magnetic loaded.
Preferably, sodium peroxydisulfate is also added in step (2), the addition of sodium peroxydisulfate is the 0.3- of sea sand quality
0.5%.
Preferably, in step (2) diatomaceous addition be respectively sea sand quality 2.5-3.0%.
The beneficial effects of the invention are as follows：The present invention uses desalted sea sand for sand material, including fiber reinforcement wadding, with tradition
Precast concrete the difference is that：1, desalted sea sand derives from a wealth of sources, convenient material drawing, congenital to be infiltrated or rushed by seawater
It washes, compared with river sand or other sandstone sea water resistance corrosion function admirables；2, fiber reinforcement wadding has good toughness, is equivalent to mixed
The reinforcing rib that several micro- shapes are increased in solidifying soil prefabricated component, can greatly improve the intensity of precast concrete.
Specific implementation mode
Below by specific embodiment, technical scheme of the present invention will be further explained in detail.
Embodiment 1：
Marine ecology engineering corrosion resistant concrete prefabricated component, the precast concrete is by concrete base-material, fiber reinforcement
Wadding and steel muscle beam are process, and wherein the addition quality of fiber reinforcement wadding is the 3% of concrete binder volume, and every 1 is vertical
Square rice concrete base-material is formed by the Raw material processing of following weight：Portland cement 300kg, desalted sea sand 600kg, rubble
800kg, cement water reducing agent 1.2kg, appropriate amount of water；The preparation method of precast concrete includes the following steps：
S1：Prepare concrete base-material：
(1)：The volume of default concrete base-material calculates each raw material dosage according to volume, weighs the silicate cement of formula ratio
Mud, desalted sea sand and rubble are first dry to stir uniformly mixed in blender, then add that suitable quantity of water is wet to stir 20min；
(2)：Fiber reinforcement wadding suitable quantity of water is fully dispersed, stirring 30min is then added in (1) to full and uniform,
Then moisturizing is added the water-reducing agent of formula ratio, is evenly stirred until regulation slump to sufficient volume；
S2：Mold is purchased, steel muscle beam is placed in mold；
S3：Cast：It will be in concrete base-material injection mold made from S1；
S4：Precuring：Mold is placed in precuring room after cast, in 60 DEG C of precuring 2h；
S5：Demoulding, cutting：Mold is sloughed after precuring, is then cut, and precast concrete semi-finished product are obtained；
S6：It is steam-cured：The precast concrete semi-finished product that step S5 is obtained are placed in the steam-cured acquisition coagulation of steam-cured indoor constant pressure
Native prefabricated component finished product, the steam-cured indoor steam pressure are 1.2Mpa, and temperature is 180 DEG C, and the constant pressure steam-cured time is 2h；
The fiber reinforcement wadding is the nylon yarn of length 30-50mm.
Embodiment 2：
Marine ecology engineering corrosion resistant concrete prefabricated component, the precast concrete is by concrete base-material, fiber reinforcement
Wadding and steel muscle beam are process, and wherein the addition quality of fiber reinforcement wadding is the 5% of concrete binder volume, and every 1 is vertical
Square rice concrete base-material is formed by the Raw material processing of following weight：Portland cement 400kg, desalted sea sand 800kg, rubble
1000kg, cement water reducing agent 4kg, appropriate amount of water；The preparation method of precast concrete includes the following steps：
S1：Prepare concrete base-material：
(1)：The volume of default concrete base-material calculates each raw material dosage according to volume, weighs the silicate cement of formula ratio
Mud, desalted sea sand and rubble are first dry to stir uniformly mixed in blender, then add that suitable quantity of water is wet to stir 30min；
(2)：Fiber reinforcement wadding suitable quantity of water is fully dispersed, stirring 45min is then added in (1) to full and uniform,
Then moisturizing is added the water-reducing agent of formula ratio, is evenly stirred until regulation slump to sufficient volume；
S2：Mold is purchased, steel muscle beam is placed in mold；
S3：Cast：It will be in concrete base-material injection mold made from S1；
S4：Precuring：Mold is placed in precuring room after cast, in 70 DEG C of precuring 2h；
S5：Demoulding, cutting：Mold is sloughed after precuring, is then cut, and precast concrete semi-finished product are obtained；
S6：It is steam-cured：The precast concrete semi-finished product that step S5 is obtained are placed in the steam-cured acquisition coagulation of steam-cured indoor constant pressure
Native prefabricated component finished product, the steam-cured indoor steam pressure are 1.4Mpa, and temperature is 180 DEG C, and the constant pressure steam-cured time is 3h；
The fiber reinforcement wadding is the bamboo charcoal fiber of length 10-20mm.
Embodiment 3：
Marine ecology engineering corrosion resistant concrete prefabricated component, it is characterised in that：The precast concrete is by coagulation soil matrix
Material, fiber reinforcement wadding and steel muscle beam are process, and wherein the addition quality of fiber reinforcement wadding is concrete binder volume
4%, every 1 cubic meter of concrete base-material is formed by the Raw material processing of following weight：Portland cement 350kg, desalted sea sand
700kg, broken 900kg, cement water reducing agent 2.5kg, appropriate amount of water；The preparation method of precast concrete includes the following steps：
S1：Prepare concrete base-material：
(1)：The volume of default concrete base-material calculates each raw material dosage according to volume, weighs the silicate cement of formula ratio
Mud, desalted sea sand and rubble are first dry to stir uniformly mixed in blender, then add that suitable quantity of water is wet to stir 25min；
(2)：Fiber reinforcement wadding suitable quantity of water is fully dispersed, stirring 40min is then added in (1) to full and uniform,
Then moisturizing is added the water-reducing agent of formula ratio, is evenly stirred until regulation slump to sufficient volume；
S2：Mold is purchased, steel muscle beam is placed in mold；
S3：Cast：It will be in concrete base-material injection mold made from S1；
S4：Precuring：Mold is placed in precuring room after cast, in 65 DEG C of precuring 1.5h；
S5：Demoulding, cutting：Mold is sloughed after precuring, is then cut, and precast concrete semi-finished product are obtained；
S6：It is steam-cured：The precast concrete semi-finished product that step S5 is obtained are placed in the steam-cured acquisition coagulation of steam-cured indoor constant pressure
Native prefabricated component finished product, the steam-cured indoor steam pressure are 1.3Mpa, and temperature is 170 DEG C, and the constant pressure steam-cured time is 2.5h；
The fiber reinforcement wadding is the nylon yarn of length 30-50mm.
Desalted sea sand in 1-3 of the embodiment of the present invention is prepared according to the following steps acquisition：
(1) sea sand pre-sifted：Sea sand is sieved, the sea sand that grain size is less than 5mm is obtained；
(2) sea sand purged with fresh water：By the sea sand of step (1) and desalinize seawater by quality and volume ratio 2：5 ratio mixing,
Appropriate diatomite is added, 5h is handled in stirring at normal temperature；In addition it is also added with sodium peroxydisulfate, the addition of sodium peroxydisulfate is sea sand matter
The 0.3% of amount, diatomaceous addition are the 2.5% of sea sand quality；
(3) it detaches：Sea sand after step (2) purified treatment is drained；
(4) it is heat-treated：The sea sand that step (3) is drained heats 1h in 150 DEG C, then sieves again, removes diatom
Desalted sea sand finished product is obtained after soil.
Aforementioned used desalinizing seawater is prepared as follows：
(1) it pre-processes：Nearly seawater leads to cistern, and the water-insoluble Portugal that stored 1% mass of seawater total volume is added is poly-
Sugar stirs, and 4h is settled in room temperature natural flocculation；
(2) it purifies：Step (1) pretreated coastal seawater is pumped into filtration tank, and modified coral is filled in the filtration tank
Coral sand filler, pretreated coastal seawater are purified through the filling adsorption in filtration tank, fully remove removing chloride and impurity, are obtained
Sea sand desalting water.
The processing method of the modification coral sand filler used in above-mentioned preparation method is as follows：
(a) coral sand is crushed, chooses the coral sand of particle size range 0.5mm, removes visible foreign with seawater flushing, dry standby
With；
(b) modifying agent is configured, magnetic order mesoporous medium and organobentonite are uniformly mixed, appropriate purified water is added to stir
Uniformly, with sodium hydroxide tune pH value to 7.3, modifying agent is obtained；
(c) small in stirring at normal temperature infiltration 4.5 by modification in the modifying agent of the coral sand of step (a) input step (b)
When, sodium hydroxide maintenance system pH value 7.3 is added in impregnation process；
(d) coral sand after step (c) modification after 300 DEG C of high-temperature roasting 0.6h, is cooled to room temperature through draining,
Filler is used as to load filtration tank.
The mass fraction of magnetic order mesoporous medium is 0.5-1.2% in the modifying agent used in aforementioned schemes, organic bentonite
The mass fraction of profit soil is 0.8-1.6%, and the order mesoporous medium of magnetism is magnetic ordered mesoporous carbon.
The precast concrete of embodiment 1-3 is used for the marine ecology engineering construction in Zhoushan marine site, pours diameter 1m, long
The concrete pillar 3 for spending 3m, compares with normal concrete prefabricated component in the prior art, and construction method is the same, construction 12
Observation is compared after a month：There is non-uniform either large or small lesion on the concrete pillar surface of comparative example, close to coagulation
The lesion of soil matrix column bottom end is more, and 3 concrete pillar appearances of experimental example do not see that the sign for having erosion, sea water resistance are invaded
It loses with obvious effects.Above-mentioned embodiment is only a preferred solution of the present invention, any form not is made to the present invention
On limitation, also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (9)
1. marine ecology engineering corrosion resistant concrete prefabricated component, it is characterised in that：The precast concrete by concrete base-material,
Fiber reinforcement wadding and steel muscle beam are process, and wherein the addition quality of fiber reinforcement wadding is the 3- of concrete binder volume
5%, every 1 cubic meter of concrete base-material is formed by the Raw material processing of following weight：Portland cement 300-400kg, desalted sea sand
600-800kg, rubble 800-1000kg, cement water reducing agent 1.2-4kg, appropriate amount of water；The preparation method packet of precast concrete
Include the following steps：
S1：Prepare concrete base-material：
(1)：The volume of default concrete base-material calculates each raw material dosage according to volume, weighs the portland cement, light of formula ratio
Change sea sand and rubble in blender, it is first dry to stir uniformly mixed, then add that suitable quantity of water is wet to stir 20-30min：
(2)：Fiber reinforcement wadding suitable quantity of water is fully dispersed, it is then added in (1) and stirs 30-45min to full and uniform, benefit
Then water is added the water-reducing agent of formula ratio, is evenly stirred until regulation slump to sufficient volume；
S2：Mold is purchased, steel muscle beam is placed in mold；
S3：Cast：It will be in concrete base-material injection mold made from S1；
S4：Precuring：Mold is placed in precuring room after cast, in 60-70 DEG C of precuring 1-2h；
S5：Demoulding, cutting：Mold is sloughed after precuring, is then cut, and precast concrete semi-finished product are obtained；
S6：It is steam-cured：It is pre- that the precast concrete semi-finished product that step S5 is obtained are placed in the steam-cured acquisition concrete of steam-cured indoor constant pressure
Product finished product, the steam-cured indoor steam pressure are 1.2-1.4Mpa, and temperature is 160-180 DEG C, and the constant pressure steam-cured time is 2-
3h。
2. marine ecology engineering corrosion resistant concrete prefabricated component according to claim 1, it is characterised in that：The desalination sea
Sand is prepared according to the following steps acquisition：
(1) sea sand pre-sifted：Sea sand is sieved, the sea sand that grain size is less than 5mm is obtained；
(2) sea sand purged with fresh water：The sea sand of step (1) is mixed in the ratio of quality and volume ratio 2: 5-6 with desalinizing seawater, is added
Enter appropriate diatomite, 1-2h is handled in stirring at normal temperature；
(3) it detaches：Sea sand after step (2) purified treatment is drained；
(4) it is heat-treated：The sea sand that step (3) is drained heats 1-1.5h in 150-160 DEG C, then sieves again, removes
Desalted sea sand finished product is obtained after diatomite.
3. marine ecology engineering corrosion resistant concrete prefabricated component according to claim 1, it is characterised in that：The fiber increases
The nylon yarn that strong wadding is length 30-50mm or the bamboo charcoal fiber that length is 10-20mm.
4. marine ecology engineering corrosion resistant concrete prefabricated component according to claim 2, it is characterised in that：The desalination sea
Water is prepared as follows：
(1) it pre-processes：Nearly seawater leads to cistern, and the water-insoluble Portugal that stored seawater total volume 1-1.5% mass is added is poly-
Sugar stirs, and 3-4h is settled in room temperature natural flocculation；
(2) it purifies：Step (1) pretreated coastal seawater is pumped into filtration tank, and modified coral sand is filled in the filtration tank
Filler, pretreated coastal seawater are purified through the filling adsorption in filtration tank, fully remove removing chloride and impurity, obtain sea sand
Desalination water.
5. marine ecology engineering corrosion resistant concrete prefabricated component according to claim 4, it is characterised in that：The modified coral
The processing method of coral sand filler is as follows：
(a) coral sand is crushed, chooses the coral sand of particle size range 0.4-0.6mm, removes visible foreign with seawater flushing, dry standby
With；
(b) modifying agent is configured, magnetic order mesoporous medium and organobentonite are uniformly mixed, adds appropriate purified water stirring equal
It is even, with sodium hydroxide tune pH value to 7.2-7.6, obtain modifying agent；
(c) it by modification in the modifying agent of the coral sand of step (a) input step (b), is infiltrated 4-5 hours in stirring at normal temperature,
Sodium hydroxide maintenance system pH value 7.2-7.6 is added in impregnation process；
(d) coral sand after step (c) modification is through draining, and after 280-320 DEG C of high-temperature roasting 0.5-1h, is cooled to often
Temperature is used as filler to load filtration tank.
6. marine ecology engineering corrosion resistant concrete prefabricated component according to claim 5, it is characterised in that：Magnetic in modifying agent
Property order mesoporous medium mass fraction be 0.5-1.2%, bentonite mass fraction is 0.8-1.6%.
7. marine ecology engineering corrosion resistant concrete prefabricated component according to claim 6, it is characterised in that：The magnetism has
Sequence Mesoporous media is magnetic ordered mesoporous carbon and/or magnetic order mesoporous nickel ferrite based magnetic loaded.
8. marine ecology engineering corrosion resistant concrete prefabricated component according to claim 2, it is characterised in that：In step (2)
It is also added with sodium peroxydisulfate, the addition of sodium peroxydisulfate is the 0.3-0.5% of sea sand quality.
9. marine ecology engineering corrosion resistant concrete prefabricated component according to claim 2, it is characterised in that：In step (2)
Diatomaceous addition is respectively the 2.5-3.0% of sea sand quality.
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