CN108218307A - A kind of ocean engineering marine sand concrete - Google Patents
A kind of ocean engineering marine sand concrete Download PDFInfo
- Publication number
- CN108218307A CN108218307A CN201611193144.9A CN201611193144A CN108218307A CN 108218307 A CN108218307 A CN 108218307A CN 201611193144 A CN201611193144 A CN 201611193144A CN 108218307 A CN108218307 A CN 108218307A
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- CN
- China
- Prior art keywords
- concrete
- sea sand
- sand
- particle
- marine
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/24—Sea water resistance
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a kind of ocean engineering marine sand concretes, belong to building material field.Sea sand used in the concrete is pre-processed as follows：It is dry after sea sand is cleaned, it is stood after 1~6h will be handled at sea sand and rubber powder mixing and ball milling, with 150~200 DEG C；Then crushed, it is levigate, obtain the particle that average grain diameter is less than 100 microns；Gained particle is mixed with EPS particles；The mixture of gained is subjected to ball milling, 2~12h of Ball-milling Time obtains clinker sea sand.The marine sand concrete is the concrete of chloride-penetration resistance using sea sand as raw material, while overcomes the problem of sea sand chlorine ion concentration itself is high so that architectural engineering can gather materials on the spot, cost-effective.
Description
Technical field
The present invention relates to a kind of ocean engineering marine sand concretes, belong to building material field.
Background technology
Marine sand concrete is that sea sand pours the concrete that materials mix with other buildings.When using sea sand preparation reinforcing bar
During concrete, chloride ion content should be not more than 0.06% (with the percentage of dry sand) in sea sand.The exceeded one side of chlorion has
It damages in concrete in itself, it is enabled to generate microcrack；When chlorion is accumulated to a certain concentration, the passivating film of reinforcing bar will be destroyed, drawn
Play steel bar corrosion；More than 10% the suitable muscle of protective layer can be caused to crack when corrosion ratio reaches, protective layer stripping, peeled off, reinforcing bar
Anti-seismic performance substantially reduces.
Concrete used in ocean engineering is maritime concrete.Country does not define maritime concrete.It is generally believed that through
Concrete used in being subjected to the structure that the spray splashes, all belongs to maritime concrete.Maritime concrete is high workability, high-durability
Concrete.For harbour, bridge, seawater disengaging the equal concrete steel building such as reinforced concrete pipiline, a large amount of chlorine from
After son is penetrated into concrete, meeting corrosion reinforcing bar leads to the damage of building, safety that is heavy then destroying building, reducing it makes
Use the service life.Therefore, chloride-penetration resistance effect is one of very important technical indicator of maritime concrete.
Under normal circumstances, sea sand is not particularly suited for the raw material of maritime concrete, mainly since the chlorion in sea sand contains
Amount is inherently high；But since sea sand is taken from marine environment, it such as can be used for the construction of ocean engineering, then can gather materials on the spot, subtract
Few a large amount of landed costs.
Invention content
The object of the present invention is to provide ocean engineering marine sand concrete, which, using sea sand as raw material, is anti-
The concrete of chloride permeability, while overcome the problem of sea sand chlorine ion concentration itself is high so that architectural engineering can take on the spot
Material, it is cost-effective.
A kind of ocean engineering marine sand concrete, sea sand used in the concrete are pre-processed as follows：
It is dry after sea sand is cleaned, after 1~6h is handled at sea sand and rubber powder mixing and ball milling, with 150~200 DEG C
It stands；Then crushed, it is levigate, obtain the particle that average grain diameter is less than 100 microns；Gained particle is mixed with EPS particles；
The mixture of gained is subjected to ball milling, 2~12h of Ball-milling Time obtains clinker sea sand.
Further, the marine sand concrete is made of following components：Cement 50~60%, clinker sea sand 10~15%,
Clay 20~30%, nano kaoline particle 1~3%, water-reducing agent 1~3%, the ratio of mud are 0.35~0.6.
Further, the grain size of the EPS particles is 20~200 microns.
Further, the concrete is prepared as follows：Nano kaoline particle is subjected to ultrasonic disperse in water
15~30min；By cement 50~60%, clinker sea sand 10~15%, clay 20~30%, after water-reducing agent 1~3% is mixed with water
It stirs evenly to be placed in mold and be conserved, 0.5~6h of curing time obtains preforming slurry；By preforming slurry and nanometer
The outstanding mixed liquid mixing of kaolin particle, then conserved, conserve 7~28d.
Beneficial effects of the present invention are：Ocean engineering marine sand concrete provided by the invention, sea used in the concrete
Sand is pre-processed as follows：It is dry after sea sand is cleaned, by sea sand and rubber powder mixing and ball milling, with 150~200
It is stood after handling 1~6h at DEG C；Then crushed, it is levigate, obtain the particle that average grain diameter is less than 100 microns；By gained
Grain is mixed with EPS particles；The mixture of gained is subjected to ball milling, 2~12h of Ball-milling Time obtains clinker sea sand.The marine sand concrete
Using sea sand as raw material, it is the concrete of chloride-penetration resistance, while overcomes the problem of sea sand chlorine ion concentration itself is high so that
Architectural engineering can gather materials on the spot, cost-effective.
Specific embodiment
Following non-limiting examples can make those of ordinary skill in the art be more fully understood the present invention, but not with
Any mode limits the present invention.
Test method described in following embodiments is conventional method unless otherwise specified；The reagent and material, such as
Without specified otherwise, commercially obtain.
Embodiment 1
A kind of ocean engineering marine sand concrete, sea sand used in the concrete are pre-processed as follows：It will be extra large
It is dry after sand washing is net, it is stood after 2h will be handled at sea sand and rubber powder mixing and ball milling, with 180 DEG C；It is then crushed, is ground
Carefully, the particle that average grain diameter is less than 100 microns is obtained；Gained particle is mixed with EPS particles, the grain size of the EPS particles is
50~80 microns；The mixture of gained is subjected to ball milling, Ball-milling Time 6h obtains clinker sea sand.
Nano kaoline particle is subjected to ultrasonic disperse 15min in water；By cement 55%, clinker sea sand 15%, clay
25%, water-reducing agent 3% is stirred evenly to be placed in mold after mixing with water and be conserved, the ratio of mud 0.51, curing time
1.5h obtain preforming slurry；Preforming slurry with the outstanding mixed liquid of nano kaoline particle (2%) is mixed, then conserved, is supported
Protect 14d.
Embodiment 2
A kind of ocean engineering marine sand concrete, sea sand used in the concrete are pre-processed as follows：It will be extra large
It is dry after sand washing is net, it is stood after 2h will be handled at sea sand and rubber powder mixing and ball milling, with 180 DEG C；It is then crushed, is ground
Carefully, the particle that average grain diameter is less than 100 microns is obtained；Gained particle is mixed with EPS particles, the grain size of the EPS particles is
50~80 microns；The mixture of gained is subjected to ball milling, Ball-milling Time 6h obtains clinker sea sand.
Nano kaoline particle is subjected to ultrasonic disperse 15min in water；By cement 60%, clinker sea sand 15%, clay
20%, water-reducing agent 2% is stirred evenly to be placed in mold after mixing with water and be conserved, the ratio of mud 0.59, curing time 2h,
Obtain preforming slurry；Preforming slurry with the outstanding mixed liquid of nano kaoline particle (3%) is mixed, then conserved, is conserved
14d。
Claims (4)
1. a kind of ocean engineering marine sand concrete, it is characterised in that：Sea sand used in the concrete carries out pre- as follows
Processing：
It is dry after sea sand is cleaned, it is stood after 1~6h will be handled at sea sand and rubber powder mixing and ball milling, with 150~200 DEG C；
Then crushed, it is levigate, obtain the particle that average grain diameter is less than 100 microns；Gained particle is mixed with EPS particles；By institute
The mixture obtained carries out ball milling, and 2~12h of Ball-milling Time obtains clinker sea sand.
2. marine sand concrete according to claim 1, it is characterised in that：The marine sand concrete is made of following components：
Cement 50~60%, clinker sea sand 10~15%, clay 20~30%, nano kaoline particle 1~3%, water-reducing agent 1~3%,
The ratio of mud is 0.35~0.6.
3. marine sand concrete according to claim 1, it is characterised in that：The grain size of the EPS particles is micro- for 20~200
Rice.
4. marine sand concrete according to claim 1, it is characterised in that：The concrete is prepared as follows：
Nano kaoline particle is subjected to 15~30min of ultrasonic disperse in water；By cement 50~60%, clinker sea sand 10~
15%, clay 20~30%, water-reducing agent 1~3% is stirred evenly to be placed in mold after mixing with water and be conserved, curing time
0.5~6h obtains preforming slurry；Preforming slurry with the outstanding mixed liquid of nano kaoline particle is mixed, then conserved, is conserved
7~28d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611193144.9A CN108218307A (en) | 2016-12-21 | 2016-12-21 | A kind of ocean engineering marine sand concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611193144.9A CN108218307A (en) | 2016-12-21 | 2016-12-21 | A kind of ocean engineering marine sand concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108218307A true CN108218307A (en) | 2018-06-29 |
Family
ID=62656028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611193144.9A Pending CN108218307A (en) | 2016-12-21 | 2016-12-21 | A kind of ocean engineering marine sand concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108218307A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110642579A (en) * | 2019-11-14 | 2020-01-03 | 广西云燕特种水泥建材有限公司 | Marine sulphoaluminate cement for rapid construction and preparation method thereof |
| CN110698142A (en) * | 2019-11-14 | 2020-01-17 | 广西云燕特种水泥建材有限公司 | Antifouling corrosion-resistant marine cement and preparation method thereof |
-
2016
- 2016-12-21 CN CN201611193144.9A patent/CN108218307A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110642579A (en) * | 2019-11-14 | 2020-01-03 | 广西云燕特种水泥建材有限公司 | Marine sulphoaluminate cement for rapid construction and preparation method thereof |
| CN110698142A (en) * | 2019-11-14 | 2020-01-17 | 广西云燕特种水泥建材有限公司 | Antifouling corrosion-resistant marine cement and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180629 |