CN101708985A - Quick-hardening high-early strength concrete-based composite material for maritime work - Google Patents
Quick-hardening high-early strength concrete-based composite material for maritime work Download PDFInfo
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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
- C04B28/34—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 cold phosphate binders
- C04B28/344—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 cold phosphate binders the phosphate binder being present in the starting composition solely as one or more phosphates
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0004—Compounds chosen for the nature of their cations
- C04B2103/0006—Alkali metal or inorganic ammonium compounds
- C04B2103/0007—K
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0004—Compounds chosen for the nature of their cations
- C04B2103/0006—Alkali metal or inorganic ammonium compounds
- C04B2103/0009—Inorganic ammonium compounds
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/10—Accelerators; Activators
- C04B2103/12—Set accelerators
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/10—Accelerators; Activators
- C04B2103/14—Hardening accelerators
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/20—Retarders
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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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/24—Sea water resistance
-
- 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
- C04B2111/72—Repairing or restoring existing buildings or building materials
-
- 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
- C04B2111/74—Underwater applications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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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 quick-hardening high-early strength concrete-based composite material for a maritime work, which mainly comprises the following components in parts by weight: 100 parts of magnesium oxide, 25-50 parts of phosphate, 5-15 parts of retarder, 0.5-3.5 parts of siloyl group moisture repellent, 10-20 parts of flyash, 0-5 parts of glass fibre, 150-350 parts of sea sands and 25-50 parts of seawater. The invention takes the sea sands without desalting treatment as aggregate and the seawater as mixing water, thereby fully utilizing island resources such as sea sands, seawater, and the like, greatly reducing traffic capacity, saving cost. In addition, the invention has the advantages of quick setting and hardening, high early strength, good seawater erosion capability, and the like, thereby being widely applied to quick repatching and building in projects such as island roads, landingstrips, docks, and the like.
Description
Technical field
The present invention relates to a kind of material of construction, specifically, is a kind of quick-hardening high-early strength concrete-based composite material for maritime work, and engineering is repaired and built to the road face that can be used for island or sea port dock fast.
Background technology
Continually developing and utilizing along with oceanic resources, at sea with islands and reefs on civil engineering work will get more and more, but the maritime concrete that is used at present on marine and the islands and reefs mainly adopts silicate cement, a large amount of admixture breezes, flyash, silicon ash and water in the mix process.Because lack conventional material of construction such as river sand, rubble on marine and the islands and reefs, it is also most deficient with fresh water to construct, if from the land shipping, then freight volume is limited and costly.Sea sand is important a kind of material of construction, and still, owing to contain a large amount of salinities and chlorion in the extra large sand, directly the use meeting has a negative impact to ordinary Portland cement and concrete performance, therefore, and the desalted sea sands that adopt in the engineering more.For example, Chinese patent " desalted sea sand high performance concrete compound and preparation method thereof " (publication number is CN1309675C), a kind of high performance concrete that adopts extra large sand, cement, flyash, ground slag powder and water preparation is disclosed, used cement is ordinary Portland cement and silicate cement, used extra large sand is desalted sea sand, and mixing water adopts tap water.Because desalted sea sand need consume certain Freshwater resources, and cost is higher, has increased building cost, and mix need increase building cost from land transport equally with fresh water, is unfavorable for water saving.In addition, the ordinary Portland cement strength development is slow, and curing cycle is long, is unfavorable for constructing under the environment of the abominable sudden change in island.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of maritime works's phosphoric acid salt concrete material, this concrete material is a raw material with extra large sand and seawater directly, to reduce building cost, save Freshwater resources, and prepared cement-base composite material strength development is fast, and curing cycle is short and maintaining process is simple.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: a kind of quick-hardening high-early strength concrete-based composite material for maritime work, mainly formulated by magnesium oxide, phosphoric acid salt, retardant, silylation hydrophober, flyash, glass fibre, extra large sand and seawater, the ratio of weight and number of each component is:
100 parts in magnesium oxide
25～50 parts of phosphoric acid salt
5～15 parts of retardant
10～20 parts in flyash
0.5～3.5 part of silylation hydrophober
0～5 part in glass fibre
150～350 parts in sea sand
25～50 parts in seawater
Described phosphoric acid salt is a kind of in primary ammonium phosphate, the potassium primary phosphate.
The present invention mainly with magnesium oxide, phosphoric acid salt and retardant as bonding component, as gathering materials, the employing seawater is a mixing water with the extra large sand handled without desalination, can make full use of island resources such as extra large sand, seawater, reduce traffic capacity greatly, save cost, and saved Freshwater resources.
Characteristics such as phosphate cement has that aquation is rapid, early strength is high, anti-sulphate attack and marine denudation can be widely used in face to repair and build engineering fast, are very suitable for the environment construction down of the abominable sudden change in island.Owing to contain a large amount of finely powdered materials usually in the extra large sand, and grain size distribution is relatively poor, so has increased magnesian mixed ratio greatly in the present invention's prescription, has heightened phosphatic mixed ratio simultaneously, fully wrap up extra large sand to generate more hydrated product, realize the high-early-strength purpose.For improving the performance of material in the oceanic tide wet environment, also increased the silylation hydrophober component that adapts to the phosphate cement hydrated environment in the present invention's prescription.
As the preferred embodiments of the present invention, described magnesium oxide is the heavy burned magnesium oxide that magnesite forms through high-temperature calcination more than 1500 ℃, MgO content 〉=92%, CaO content＜2%, Fe
2O
3Content＜2%, specific surface area are 3000～4500cm
2/ g.Adopt the MgO of high purity and high-specific surface area, be beneficial to fully wrap up extra large sand.
As the preferred embodiments of the present invention, described retardant is a kind of of boric acid, borax.
As the preferred embodiments of the present invention, described flyash is low calcium fly ash, and quality of fly ash is greater than the II level.
As the preferred embodiments of the present invention, described silylation hydrophober is the silylation powder, and the powder median size is 200～400 μ m.
As the preferred embodiments of the present invention, described glass fibre length is 12～15mm, and Fibre diameter is 10～20 μ m.
As the preferred embodiments of the present invention, extra large grain fineness number modulus is 1.5～3.5, and silt content is smaller or equal to 5.0%, and shell content is smaller or equal to 8.0%.
With respect to prior art, the invention has the beneficial effects as follows:
(1) as fine aggregate, the employing seawater is a mixing water, can utilize island resources such as extra large sand, seawater in a large number, reduces traffic capacity greatly without the extra large sand of desalination processing in employing, saves cost, and has saved Freshwater resources.
(2) setting and harden speed is fast, and strength development is rapid, and the early strength height is suitable for the abominable environment that suddenlys change in island.
(3) mixing of silylation hydrophober makes material have better resisting sea water erosion performance.
(4) mix the resistance to cleavage that glass fibre has improved matrix material, can effectively avoid seawater and extra large sand corrosion failure simultaneously steel fiber and reinforcing bar.
Embodiment
Further the present invention is illustrated below in conjunction with embodiment.
Quick-hardening high-early strength concrete-based composite material for maritime work of the present invention is that preparation of raw material forms with magnesium oxide, phosphoric acid salt, retardant, silylation hydrophober, flyash, glass fibre, extra large sand and seawater, and the ratio of weight and number of each component is: 100 parts in magnesium oxide, 25～50 parts of phosphoric acid salt, 5～15 parts of retardant, 0.5～3.5 part of silylation hydrophober, 10～20 parts in flyash, 0～5 part in glass fibre, 150～350 parts in extra large sand, 25～50 parts in seawater.Magnesium oxide of the present invention can adopt common magnesium oxide, the heavy burned magnesium oxide that preferably adopts magnesite to form through high-temperature calcination more than 1500 ℃, MgO content 〉=92%, CaO content＜2%, Fe
2O
3Content＜2%, specific surface area are 3000～4500cm
2/ g.Flyash of the present invention is preferably low calcium fly ash, and quality of fly ash is greater than the II level.Silylation hydrophober of the present invention is the silylation powder, and the powder median size is 200～400 μ m.The glass fibre length that is preferably of the present invention is 12～15mm, and average fibre diameter is 10～20 μ m.It is 1.5～3.5 that extra large grain fineness number of the present invention is preferably modulus, silt content≤5.0%, shell content≤8.0%.
During use, take by weighing each component by proportioning, to stir in magnesium oxide, phosphoric acid salt, retardant, the silylation hydrophober adding stirrer, add flyash, extra large sand and glass fibre more successively and stir, add seawater at last and stirred 1～2 minute fast, water and smash moulding and be placed on natural curing in the air.
Specific embodiment 1～5 sees Table 1.
Table 1: the prescription of the specific embodiment of the invention
Annotate: embodiment 1～5 magnesian specific surface area is followed successively by: 3000cm
2/ g, 3500cm
2/ g, 4500cm
2/ g, 3500cm
2/ g, 4000cm
2/ g.The fineness modulus of sea sand is followed successively by: 2.7,1.5,3.2,3.2,2.7.
With each cement-base composite material of embodiment 1～5 water smash moulding after, it is carried out mechanical property detects, the results are shown in Table 2.
Every performance behind table 2: embodiment 1～5 casting
| 1 hour folding strength (MPa) | 1 hour ultimate compression strength (MPa) | 1 day folding strength (MPa) | 1 day ultimate compression strength (MPa) | 28 days folding strengths (MPa) | 28 days ultimate compression strength (MPa) | |
| Embodiment 1 | ??3.5 | ??23.5 | ?5.6 | ?33.5 | ??10.8 | ??72.5 |
| Embodiment 2 | ??2.8 | ??12.0 | ?4.5 | ?23.0 | ??7.8 | ??45.5 |
| Embodiment 3 | ??3.0 | ??15.5 | ?4.7 | ?25.0 | ??8.2 | ??52.2 |
| Embodiment 4 | ??2.8 | ??14.5 | ?4.6 | ?22.5 | ??7.5 | ??50.5 |
| Embodiment 5 | ??2.5 | ??15.2 | ?3.8 | ?27.6 | ??7.6 | ??48.0 |
By table 2 as seen, maritime works's phosphoric acid salt concrete material setting and harden speed of the present invention is fast, and strength development is rapid, the early strength height.And institute shaping test piece surface flawless produces, and test specimen soaks in seawater that outward appearance and intensity have no significant change after 1 year.
Claims (7)
1. a quick-hardening high-early strength concrete-based composite material for maritime work is characterized in that its raw material comprises magnesium oxide, phosphoric acid salt, retardant, silylation hydrophober, flyash, glass fibre, extra large sand and seawater, and the ratio of weight and number of each component is:
100 parts in magnesium oxide
25～50 parts of phosphoric acid salt
5～15 parts of retardant
0.5～3.5 part of silylation hydrophober
10～20 parts in flyash
0～5 part in glass fibre
150～350 parts in sea sand
25～50 parts in seawater
Described phosphoric acid salt is a kind of in primary ammonium phosphate, the potassium primary phosphate.
2. quick-hardening high-early strength concrete-based composite material for maritime work according to claim 1 is characterized in that: described magnesium oxide is the heavy burned magnesium oxide that magnesite forms through high-temperature calcination more than 1500 ℃, MgO content 〉=92%, CaO content＜2%, Fe
2O
3Content＜2%, specific surface area are 3000～4500cm
2/ g.
3. quick-hardening high-early strength concrete-based composite material for maritime work according to claim 1 is characterized in that: described retardant is a kind of of boric acid, borax.
4. quick-hardening high-early strength concrete-based composite material for maritime work according to claim 1 is characterized in that: described flyash is low calcium fly ash, and quality of fly ash is greater than the II level.
5. quick-hardening high-early strength concrete-based composite material for maritime work according to claim 1 is characterized in that: described silylation hydrophober is the silylation powder, and the powder median size is 200～400 μ m.
6. quick-hardening high-early strength concrete-based composite material for maritime work according to claim 1 is characterized in that: described glass fibre length is 12～15mm, and average fibre diameter is 10～20 μ m.
7. according to the arbitrary described quick-hardening high-early strength concrete-based composite material for maritime work of claim 1 to 6, it is characterized in that: described extra large grain fineness number modulus is 1.5～3.5, silt content≤5.0%, shell content≤8.0%.
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180644A (en) * | 2011-01-12 | 2011-09-14 | 顺平县普惠农丰新能源科技有限公司 | Inorganic fiber reinforced composite material and preparation method thereof |
| CN103011753A (en) * | 2011-09-26 | 2013-04-03 | 郭静萍 | Inorganic early-strength and quick-setting material |
| CN103145396A (en) * | 2013-02-26 | 2013-06-12 | 上海建为建筑修缮工程有限公司 | Multifunctional quick repair material for cement concrete pavements and preparation method thereof |
| CN103304159A (en) * | 2013-05-17 | 2013-09-18 | 深圳航天科技创新研究院 | Seawater and sea sand mixed inorganic polymer cementing material and concrete |
| CN103360027A (en) * | 2013-07-24 | 2013-10-23 | 东南大学 | Quick-setting and rapid-hardening cement matrix for concrete canvas system and use method there of |
| CN104328775A (en) * | 2014-10-22 | 2015-02-04 | 清华大学 | Seawater corrosion-resistance composite combination structure adopting seawater sea sand concrete |
| CN104402392A (en) * | 2014-11-12 | 2015-03-11 | 武汉理工大学 | Preparation method of metakaolin-based magnesium oxide type rapid repair material |
| CN104529378A (en) * | 2014-12-08 | 2015-04-22 | 中国科学院合肥物质科学研究院 | Novel water-resistant quick-hardened inorganic cementing material and preparation method thereof |
| CN104609806A (en) * | 2015-01-27 | 2015-05-13 | 中国人民解放军总后勤部建筑工程研究所 | Seawater coral sand artificial aggregate concrete block and preparation method thereof |
| CN105084837A (en) * | 2015-08-14 | 2015-11-25 | 黄贺明 | Sea sand powder concrete |
| CN105314960A (en) * | 2015-11-30 | 2016-02-10 | 马鞍山泓宇材料科技有限公司 | Inorganic fiber enhanced composite material and preparation method thereof |
| CN105541236A (en) * | 2016-02-04 | 2016-05-04 | 中国建筑材料科学研究总院 | Seawater-sea sand concrete |
| CN106431118A (en) * | 2016-10-10 | 2017-02-22 | 游万涓 | Building material for protecting virgin forest, mineral and soil resources and manufacturing method thereof |
| CN106495646A (en) * | 2016-10-18 | 2017-03-15 | 盐城工学院 | Seawater mixes and stirs coral potassium magnesium phosphate cement-based material and preparation method thereof, test piece maintenance method |
| CN106892641A (en) * | 2015-12-18 | 2017-06-27 | 天津拓展伟创材料研究有限公司 | Cement and preparation method thereof for preparing high-speed rail plate |
| CN106892633A (en) * | 2015-12-18 | 2017-06-27 | 天津拓展伟创材料研究有限公司 | Ocean engineering cement of inorganic environment-friendly and preparation method thereof |
| CN107176822A (en) * | 2017-05-24 | 2017-09-19 | 中国科学院青海盐湖研究所 | It is a kind of with concrete material of the direct mix of seawater and its preparation method and application |
| CN108314388A (en) * | 2018-05-11 | 2018-07-24 | 安徽砼宇特构科技有限公司 | A kind of fibre reinforced concrete material and preparation method thereof |
| CN108793795A (en) * | 2018-07-23 | 2018-11-13 | 沈阳理工大学 | A kind of glass fibre magnesium phosphate cement and preparation method thereof |
| CN109020468A (en) * | 2018-09-28 | 2018-12-18 | 俞家欢 | A kind of anti-deicer salts cement base irrigation canals and ditches healant |
| CN110526669A (en) * | 2019-09-25 | 2019-12-03 | 大连理工大学 | A kind of durable ecological type artificial fish shelter and its manufacturing method based on magnesium phosphate cement concrete |
| CN113402248A (en) * | 2021-08-20 | 2021-09-17 | 中科镁基（北京）科技有限公司 | Composite building material with sea sand as aggregate and preparation method thereof |
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2009
- 2009-10-29 CN CN200910191264A patent/CN101708985A/en active Pending
Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180644A (en) * | 2011-01-12 | 2011-09-14 | 顺平县普惠农丰新能源科技有限公司 | Inorganic fiber reinforced composite material and preparation method thereof |
| CN103011753A (en) * | 2011-09-26 | 2013-04-03 | 郭静萍 | Inorganic early-strength and quick-setting material |
| CN103145396B (en) * | 2013-02-26 | 2015-04-01 | 上海建为建筑修缮工程有限公司 | Multifunctional quick repair material for cement concrete pavements and preparation method thereof |
| CN103145396A (en) * | 2013-02-26 | 2013-06-12 | 上海建为建筑修缮工程有限公司 | Multifunctional quick repair material for cement concrete pavements and preparation method thereof |
| CN103304159A (en) * | 2013-05-17 | 2013-09-18 | 深圳航天科技创新研究院 | Seawater and sea sand mixed inorganic polymer cementing material and concrete |
| CN103360027A (en) * | 2013-07-24 | 2013-10-23 | 东南大学 | Quick-setting and rapid-hardening cement matrix for concrete canvas system and use method there of |
| CN103360027B (en) * | 2013-07-24 | 2015-09-09 | 东南大学 | A kind of quick-setting and rapid-hardening cement matrix for concrete canvas system and using method |
| CN104328775A (en) * | 2014-10-22 | 2015-02-04 | 清华大学 | Seawater corrosion-resistance composite combination structure adopting seawater sea sand concrete |
| CN104328775B (en) * | 2014-10-22 | 2016-04-20 | 清华大学 | Adopt the seawater corrosion resistance composite material combined structure of seawater marine sand concrete |
| CN104402392A (en) * | 2014-11-12 | 2015-03-11 | 武汉理工大学 | Preparation method of metakaolin-based magnesium oxide type rapid repair material |
| CN104529378A (en) * | 2014-12-08 | 2015-04-22 | 中国科学院合肥物质科学研究院 | Novel water-resistant quick-hardened inorganic cementing material and preparation method thereof |
| CN104529378B (en) * | 2014-12-08 | 2017-04-19 | 中国科学院合肥物质科学研究院 | Novel water-resistant quick-hardened inorganic cementing material and preparation method thereof |
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