CN109553343A - A kind of refractory concrete material and preparation method thereof - Google Patents
A kind of refractory concrete material and preparation method thereof Download PDFInfo
- Publication number
- CN109553343A CN109553343A CN201811425094.1A CN201811425094A CN109553343A CN 109553343 A CN109553343 A CN 109553343A CN 201811425094 A CN201811425094 A CN 201811425094A CN 109553343 A CN109553343 A CN 109553343A
- Authority
- CN
- China
- Prior art keywords
- parts
- concrete material
- refractory concrete
- carbon fiber
- agent
- Prior art date
- 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.)
- Pending
Links
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
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- 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 refractory concrete materials comprising the component of following parts by weight: 351~450 parts of cement, 1443~1850 parts of aggregate, 3.5~4.5 parts of carbon fiber and 7~9 parts of nano silica.The present invention uses the main material of cement and aggregate as refractory concrete, carbon fiber and nano silica is added, each raw material mixes according to a certain percentage, the addition of carbon fiber has effectively connected the hole in concrete substrate, nano silica improves the hydrophobicity problem of carbon fiber, enhance the boundary strength and compactness between carbon fiber reinforced concrete matrix, the diameter of bubble in concrete substrate is also reduced simultaneously, compared with conventional concrete material, in the case where bearing high temperature, its mechanical property is more preferably.The present invention also provides a kind of preparation methods of refractory concrete material.
Description
Technical field
The present invention relates to concrete material technical fields, and in particular to a kind of refractory concrete material and its preparation side
Method.
Background technique
Concrete is a kind of basic construction material, and concrete is cheap, and various hold can be made in conjunction with other materials
Weight firmware, so concrete becomes one of the present age most important civil engineering material.With the development of economy, civil engineering,
The demand in the fields such as hydraulic engineering, Communication and Transportation Engineering, concrete is also increasing.But since its tensile strength is low, easily
The disadvantages of cracking, brittleness is big and deformation performance is poor, the ability to bear of concrete structure is reduced, service life is shortened, limited
The application range for having made concrete, influences construction quality.
New Style Concrete Materials are one of the important directions of 21 century construction material research, receive domestic and foreign scholars' weight
Depending on, New Style Concrete Materials had both improved safety and the durability of engineering, and improved a lot in terms of economic benefits,
There is very wide application prospect in engineering.Reinforcing fiber of the carbon fiber as concrete material of new generation, because of its quality
Gently, intensity high (intensity value be higher than steel 10 times), elasticity modulus be high, antifatigue and corrosion-resistant etc. excellent characteristics and become ideal
Concrete reinforced material.Carbon fiber is added in concrete material, the shearing resistance that can significantly improve cement-base composite material is strong
The mechanical properties such as degree and elasticity modulus.But since carbon fiber is the superfine hydrophobic fiber of diameter, hydrophobicity is poor, the group of being easy
It is poly-, and a large amount of air can be introduced when in use, this not only reduces the reinforcing effect of carbon fiber, can also reduce concrete material
Intensity.And most concrete material by high temperature of fire when being acted at present, the mechanics and durability of concrete material
It can serious deterioration, threat concrete structure safety and life security.
Summary of the invention
It is an object of the invention to overcome above-mentioned technical deficiency, a kind of refractory concrete material of good mechanical performance is provided
Material；The purpose of another aspect of the present invention is, provides a kind of preparation method of refractory concrete material.
To reach above-mentioned technical purpose, technical solution of the present invention provides a kind of refractory concrete material comprising such as
The component of lower parts by weight: 351~450 parts of cement, 1443~1850 parts of aggregate, 3.5~4.5 parts of carbon fiber and nano silica
7~9 parts.
Technical solution of the present invention also provides a kind of preparation method of refractory concrete material, includes the following steps:
S1. it stocks up by weight；
S2. carbon fiber, nano silica ultrasonic wave are vibrated after dispersion respectively, then by the carbon fiber to have vibrated, nanometer
It is stirred after silica and water mixing, obtains I mixture after mixing evenly；
S3. after aggregate being mixed, cement is added, is stirred evenly, Section II mixture is obtained；
S4. the I mixture is added into the Section II mixture, after mixing evenly, after processed and maintenance, obtains into
Product.
Compared with prior art, the beneficial effect comprise that
1, the present invention uses the main material of cement and aggregate as refractory concrete, and carbon fiber and nano-silica is added
SiClx, each raw material mix according to a certain percentage, and the addition of carbon fiber has effectively connected the hole in concrete substrate, nanometer two
Silica improves the hydrophobicity problem of carbon fiber, enhances boundary strength and compactness between carbon fiber reinforced concrete matrix,
The diameter of bubble in concrete substrate is also reduced simultaneously；
2, refractory concrete material provided by the invention has excellent mechanical property, with conventional concrete material phase
Than concrete material provided by the invention shows high resistance to compression, the mechanics of high tensile and highly resistance folding in the case where bearing high temperature
Performance has in bearing high temperature or the engineering for being easy to happen fire and is more widely applied；
3, the preparation method of refractory concrete material provided by the invention, raw material are added in particular order, into one
Step reduces the probability of carbon fiber and nano silica conglomeration, also further enhances the compactness of concrete material, improves
The mechanical property of concrete material.
Detailed description of the invention
Fig. 1 is the electron-microscope scanning figure of the plain concrete after 800 DEG C of hot tests；
Fig. 2 is the electron-microscope scanning figure of the concrete material in the embodiment 1 after 800 DEG C of hot tests.
Specific embodiment
Present embodiments provide a kind of refractory concrete material comprising the component of following parts by weight: cement 351~
450 parts, 1443~1850 parts of aggregate, 3.5~4.5 parts of carbon fiber and 7~9 parts of nano silica.
In some preferred embodiments, the length of carbon fiber is 5~10mm.
In some preferred embodiments, the partial size of nano silica is 7~40nm, specific surface area 380m2/ g is pure
Degree is 99.8%.
In some preferred embodiments, which further includes auxiliary agent, and auxiliary agent includes following parts by weight
Component: 6.1~7.9 parts of water-reducing agent, 2.1~2.7 parts of dispersing agent and 2.8~3.6 parts of defoaming agent.
In some preferred embodiments, water-reducing agent is high-efficiency water-reducing agent of poly-carboxylic acid, water-reducing rate >=30%；Dispersing agent is carboxylic
Ethyl cellulose；Defoaming agent is tributyl phosphate.
In some preferred embodiments, aggregate is the mixture of river sand and rubble, and the weight ratio of river sand and rubble is
565.5~725:877.5~1125.
In some preferred embodiments, river sand is sand in IIth area, and fineness modulus is 2.4~2.7, and clay content is less than
2wt%；The partial size of rubble is 8~25mm, and crush values are 8~12%.
In some preferred embodiments, cement is 42.5 grades of ordinary portland cements (42.5 cement of abbreviation P.O).
The present embodiment additionally provides a kind of preparation method of refractory concrete material, includes the following steps:
(1) it stocks up by weight；
(2) dispersing agent ultrasonic wave is added into carbon fiber to vibrate 3~7min, while nano silica ultrasonic wave is vibrated
3~7min；The mixture of the carbon fiber to have vibrated and dispersing agent, nano silica and water are added in blender again and stirred
It mixes, water-reducing agent and defoaming agent is added in whipping process, obtain I mixture after stirring 4~8min；
(3) cement will be added into blender after 1~3min of blender dry mixing is added in river sand and rubble, then dry mixing 1~
2min obtains Section II mixture；
(4) I mixture is added into Section II mixture, stirs 2~4min, obtains mixture；Mixture is poured into
It in mold, demoulds afterwards for 24 hours, by test specimen in temperature is 20 ± 2 DEG C after demoulding, conserves 28 days under conditions of relative humidity 95%, obtain
Concrete material.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
Refractory concrete material provided by the invention and preparation method thereof is further described.It should be appreciated that this place is retouched
The specific embodiment stated is only used to explain the present invention, is not intended to limit the present invention.Experimental method in the present invention, such as without spy
Different explanation, is conventional method.Experimental material used in the present invention is that market is commercially available unless otherwise specified.
Embodiment 1:
The embodiment of the present invention 1 provides a kind of refractory concrete material comprising following component: 42.5 cement of P.O
429.6kg/m3, water 192kg/m3, fineness modulus be 2.4~2.7 river sand 708kg/m3；8~25mm rubble 1070.4kg/m3、
7mm carbon fiber 4.296kg/m3, 7~40nm nano silica 8.592kg/m3, high-efficiency water-reducing agent of poly-carboxylic acid 6.444kg/m3、
Carboxyethyl cellulose 2.5776kg/m3, tributyl phosphate 3.4368kg/m3。
The present embodiment additionally provides a kind of preparation method of refractory concrete material, includes the following steps:
(1) it stocks up by weight；
(2) carboxyethyl cellulose ultrasonic wave is added into carbon fiber to vibrate 5min, while by nano silica ultrasonic wave
Vibrate 5min；The mixture of the carbon fiber to have vibrated and carboxyethyl cellulose, nano silica and water are added again and stirred
It is stirred in machine, high-efficiency water-reducing agent of poly-carboxylic acid and tributyl phosphate is added in whipping process, obtain I mixture after stirring 6min；
(3) after blender dry mixing 2min being added in river sand and rubble, 42.5 cement of P.O, then dry mixing are added into blender
1min obtains Section II mixture；
(4) I mixture is added into Section II mixture, stirs 3min, obtains mixture；Mixture is respectively charged into
In 250mm × 250mm × 250mm and 100mm × 100mm × 400mm plastic mould, demoulds, after demoulding test specimen exists afterwards for 24 hours
Temperature is 20 ± 2 DEG C, conserves 28 days under conditions of relative humidity 95%, obtains concrete material.
Embodiment 2:
The embodiment of the present invention 2 provides a kind of refractory concrete material comprising following component: 42.5 cement of P.O
429.6kg/m3, water 192kg/m3, fineness modulus be 2.4~2.7 river sand 708kg/m3；8~25mm rubble 1070.4kg/m3、
7mm carbon fiber 3.5kg/m3, 7~40nm nano silica 8.592kg/m3, high-efficiency water-reducing agent of poly-carboxylic acid 6.444kg/m3, carboxylic
Ethyl cellulose 2.5776kg/m3, tributyl phosphate 3.4368kg/m3。
The preparation method phase provided in the preparation method of the refractory concrete material provided in the present embodiment and embodiment 1
Together.
Embodiment 3:
The embodiment of the present invention 3 provides a kind of refractory concrete material comprising following component: 42.5 cement of P.O
429.6kg/m3, water 192kg/m3, fineness modulus be 2.4~2.7 river sand 708kg/m3；8~25mm rubble 1070.4kg/m3、
7mm carbon fiber 4.5kg/m3, 7~40nm nano silica 8.592kg/m3, high-efficiency water-reducing agent of poly-carboxylic acid 6.444kg/m3, carboxylic
Ethyl cellulose 2.5776kg/m3, tributyl phosphate 3.4368kg/m3。
The preparation method phase provided in the preparation method of the refractory concrete material provided in the present embodiment and embodiment 1
Together.
Embodiment 4:
The embodiment of the present invention 4 provides a kind of refractory concrete material comprising following component: 42.5 cement of P.O
429.6kg/m3, water 192kg/m3, fineness modulus be 2.4~2.7 river sand 708kg/m3；8~25mm rubble 1070.4kg/m3、
7mm carbon fiber 4.296kg/m3, 7~40nm nano silica 7kg/m3, high-efficiency water-reducing agent of poly-carboxylic acid 6.444kg/m3, carboxylic second
Base cellulose 2.5776kg/m3, tributyl phosphate 3.4368kg/m3。
The preparation method phase provided in the preparation method of the refractory concrete material provided in the present embodiment and embodiment 1
Together.
Embodiment 5:
The embodiment of the present invention 5 provides a kind of refractory concrete material comprising following component: 42.5 cement of P.O
429.6kg/m3, water 192kg/m3, fineness modulus be 2.4~2.7 river sand 708kg/m3；8~25mm rubble 1070.4kg/m3、
7mm carbon fiber 4.296kg/m3, 7~40nm nano silica 9kg/m3, high-efficiency water-reducing agent of poly-carboxylic acid 6.444kg/m3, carboxylic second
Base cellulose 2.5776kg/m3, tributyl phosphate 3.4368kg/m3。
The preparation method phase provided in the preparation method of the refractory concrete material provided in the present embodiment and embodiment 1
Together.
Test example:
Hot test is carried out to refractory concrete material obtained in Examples 1 to 5.
(1) test specimen: the concrete material after conserving in Examples 1 to 5 is as test specimen, and with not carbon fiber-containing
With the plain concrete of nano silica as control sample, the volume size of control sample and test specimen is all the same；
(2) test method: every group of test specimen and control sample are burnt in 400 DEG C, 600 DEG C and 800 DEG C constant temperature respectively
It is cooling after 5h processed, compression strength, tensile strength and the flexural strength of testing experiment sample are distinguished after cooling.
(3) test result: concrete outcome is shown in Table 1, to 800 DEG C fire after embodiment 1 and plain concrete sample take it is small
Part carries out electron-microscope scanning, electron-microscope scanning the result is shown in Figure 1 and Fig. 2.
1 high temperature test result of table
As shown in Table 1, compression strength of the concrete material in Examples 1 to 5 at 400 DEG C, 600 DEG C and 800 DEG C, anti-
Tensile strength and flexural strength are superior to plain concrete, illustrate that the present invention improves the mechanical property and heat-resisting quantity of concrete
Energy.It can be seen from Fig. 1 and Fig. 2 compared with plain concrete, concrete material carbon fiber provided by the invention has effectively connected mixed
Hole in solidifying soil matrix body, enhances the boundary strength and compactness of carbon fiber and concrete substrate, also reduces coagulation soil matrix
The diameter of bubble in body.It follows that the raw material in the present invention is mixed according to specific ratio and is prepared in particular order
Concrete material, concrete material mechanical property obtained is more excellent, concrete material provided by the invention bear high temperature or
Person's body, which occurs to have in the engineering of fire, to be more widely applied, and is had to the safety aspect and economic and technical norms aspect of engineering
Greatly improve.
The above described specific embodiments of the present invention are not intended to limit the scope of the present invention..Any basis
Any other various changes and modifications that technical concept of the invention is made should be included in the guarantor of the claims in the present invention
It protects in range.
Claims (10)
1. a kind of refractory concrete material, which is characterized in that it includes the component of following parts by weight: 351~450 parts of cement,
1443~1850 parts of aggregate, 3.5~4.5 parts of carbon fiber and 7~9 parts of nano silica.
2. refractory concrete material according to claim 1, which is characterized in that the length of the carbon fiber be 5~
10mm。
3. refractory concrete material according to claim 1, which is characterized in that the partial size of the nano silica is
7~40nm, specific surface area 380m2/ g, purity 99.8%.
4. refractory concrete material according to claim 1, which is characterized in that the refractory concrete material also wraps
Auxiliary agent is included, the auxiliary agent includes the component of following parts by weight: 6.1~7.9 parts of water-reducing agent, 2.1~2.7 parts of dispersing agent and defoaming agent
2.8~3.6 parts.
5. refractory concrete material according to claim 4, which is characterized in that the water-reducing agent is that polycarboxylic acids efficiently subtracts
Aqua, water-reducing rate >=30%；The dispersing agent is carboxyethyl cellulose；The defoaming agent is tributyl phosphate.
6. refractory concrete material according to claim 4, which is characterized in that the aggregate is the mixed of river sand and rubble
The weight ratio of conjunction object, the river sand and rubble is 565.5~725:877.5~1125.
7. refractory concrete material according to claim 6, which is characterized in that the river sand is sand in IIth area, fineness
Modulus is 2.4~2.7, and clay content is less than 2wt%；The partial size of the rubble is 8~25mm, and crush values are 8~12%.
8. refractory concrete material according to claim 6 or 7, which is characterized in that the refractory concrete material
Component including following parts by weight: 429.6 parts of cement, 708 parts of river sand, 1070.4 parts of rubble, 4.296 part, nanometer two of carbon fiber
8.592 parts of silica, 6.444 parts of water-reducing agent, 2.5776 parts of dispersing agent, 3.4368 parts of defoaming agent.
9. the preparation method of refractory concrete material according to claim 1, which comprises the steps of:
S1. it stocks up by weight；
S2. carbon fiber, nano silica ultrasonic wave are vibrated after dispersion respectively, then by the carbon fiber to have vibrated, nano-silica
It is stirred after SiClx and water mixing, obtains I mixture after mixing evenly；
S3. after aggregate being mixed, cement is added, is stirred evenly, Section II mixture is obtained；
S4. the I mixture is added into the Section II mixture, after mixing evenly, after processed and maintenance, obtains finished product.
10. the preparation method of refractory concrete material according to claim 8, which is characterized in that in the step S2
It further include that auxiliary agent is added, the auxiliary agent includes water-reducing agent, dispersing agent and defoaming agent, is added: respectively receiving carbon with the following method
Mixture, the nano silica ultrasonic wave of rice fiber and dispersing agent vibrate after dispersion, then by the carbon fiber to have vibrated and dispersion
The mixture of agent, nano silica stir after mixing, and water-reducing agent and defoaming agent are added in whipping process, after mixing evenly
To I mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811425094.1A CN109553343A (en) | 2018-11-27 | 2018-11-27 | A kind of refractory concrete material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811425094.1A CN109553343A (en) | 2018-11-27 | 2018-11-27 | A kind of refractory concrete material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109553343A true CN109553343A (en) | 2019-04-02 |
Family
ID=65867531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811425094.1A Pending CN109553343A (en) | 2018-11-27 | 2018-11-27 | A kind of refractory concrete material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109553343A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111484262A (en) * | 2020-05-26 | 2020-08-04 | 深圳大学 | Carbon fiber composite material and preparation method and application thereof |
| CN113429167A (en) * | 2021-07-13 | 2021-09-24 | 扬州通惠***集成科技有限公司 | High-strength pervious concrete suitable for sponge city construction and preparation method thereof |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101712542A (en) * | 2009-12-01 | 2010-05-26 | 陈世忠 | Heat-resistant concrete |
| CN102531487A (en) * | 2011-12-09 | 2012-07-04 | 平顶山市恒基混凝土有限公司 | Heat resistance concrete and preparation method thereof |
| CN103553651A (en) * | 2013-10-11 | 2014-02-05 | 中国一冶集团有限公司 | Heat-resistant concrete |
| CN104529323A (en) * | 2014-12-09 | 2015-04-22 | 包头冶金建筑研究院 | Full-weight slag aggregate heat-resistant concrete prepared by using ordinary silicate cement |
| CN105198303A (en) * | 2015-08-13 | 2015-12-30 | 上海中冶环境工程科技有限公司 | Heat-resistant concrete and preparation method thereof |
| CN106186966A (en) * | 2016-07-26 | 2016-12-07 | 蚌埠市方阵商品混凝土有限公司 | A kind of concrete with excellent durability energy |
| CN106242381A (en) * | 2016-05-11 | 2016-12-21 | 武汉源锦商品混凝土有限公司 | A kind of flame-resistant high-temperature-resistant concrete and preparation method thereof |
| CN106565146A (en) * | 2015-10-08 | 2017-04-19 | 张秧林 | Heatproof concrete |
| CN107151118A (en) * | 2017-05-24 | 2017-09-12 | 广东信强混凝土有限公司 | A kind of refractory concrete |
| CN108609961A (en) * | 2018-06-05 | 2018-10-02 | 长安大学 | A kind of match ratio and its preparation method of high performance lightweight aggregate concrete |
| CN108793893A (en) * | 2018-08-25 | 2018-11-13 | 北京建工新型建材有限责任公司 | Heat resistance concrete and preparation method thereof |
| CN108863242A (en) * | 2018-08-09 | 2018-11-23 | 邢台建工商品混凝土有限公司 | Refractory concrete |
-
2018
- 2018-11-27 CN CN201811425094.1A patent/CN109553343A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101712542A (en) * | 2009-12-01 | 2010-05-26 | 陈世忠 | Heat-resistant concrete |
| CN102531487A (en) * | 2011-12-09 | 2012-07-04 | 平顶山市恒基混凝土有限公司 | Heat resistance concrete and preparation method thereof |
| CN103553651A (en) * | 2013-10-11 | 2014-02-05 | 中国一冶集团有限公司 | Heat-resistant concrete |
| CN104529323A (en) * | 2014-12-09 | 2015-04-22 | 包头冶金建筑研究院 | Full-weight slag aggregate heat-resistant concrete prepared by using ordinary silicate cement |
| CN105198303A (en) * | 2015-08-13 | 2015-12-30 | 上海中冶环境工程科技有限公司 | Heat-resistant concrete and preparation method thereof |
| CN106565146A (en) * | 2015-10-08 | 2017-04-19 | 张秧林 | Heatproof concrete |
| CN106242381A (en) * | 2016-05-11 | 2016-12-21 | 武汉源锦商品混凝土有限公司 | A kind of flame-resistant high-temperature-resistant concrete and preparation method thereof |
| CN106186966A (en) * | 2016-07-26 | 2016-12-07 | 蚌埠市方阵商品混凝土有限公司 | A kind of concrete with excellent durability energy |
| CN107151118A (en) * | 2017-05-24 | 2017-09-12 | 广东信强混凝土有限公司 | A kind of refractory concrete |
| CN108609961A (en) * | 2018-06-05 | 2018-10-02 | 长安大学 | A kind of match ratio and its preparation method of high performance lightweight aggregate concrete |
| CN108863242A (en) * | 2018-08-09 | 2018-11-23 | 邢台建工商品混凝土有限公司 | Refractory concrete |
| CN108793893A (en) * | 2018-08-25 | 2018-11-13 | 北京建工新型建材有限责任公司 | Heat resistance concrete and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111484262A (en) * | 2020-05-26 | 2020-08-04 | 深圳大学 | Carbon fiber composite material and preparation method and application thereof |
| CN111484262B (en) * | 2020-05-26 | 2022-01-11 | 深圳大学 | Carbon fiber composite material and preparation method and application thereof |
| CN113429167A (en) * | 2021-07-13 | 2021-09-24 | 扬州通惠***集成科技有限公司 | High-strength pervious concrete suitable for sponge city construction and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Tam et al. | Optimal conditions for producing reactive powder concrete | |
| CN104030634A (en) | High-strength and high-toughness reactive powder concrete of carbon doped nano-tube and preparation method of high-strength and high-toughness reactive powder concrete | |
| CN111807790B (en) | Rubber powder ultrahigh-ductility mortar for building 3D printing and preparation | |
| CN109020422B (en) | A kind of 3D printing carbon nanotube ultra-high performance concrete and preparation method thereof | |
| CN104944863A (en) | Preparation method for high-strength self-compacting concrete with recycled fine aggregate | |
| CN106007553A (en) | Carbon nanotube/polyvinyl alcohol high-tenacity intelligent cement mortar and preparation thereof | |
| CN107043236A (en) | A kind of lightweight aggregate concrete and preparation method thereof | |
| CN110028285A (en) | A kind of ultra-high performance concrete and preparation method thereof improving Steel Bridge Deck rigidity | |
| CN102059740A (en) | Preparation method of prestress high-strength concrete (PHC) tubular pile | |
| CN106699039A (en) | Building 3D printing ink and use thereof | |
| CN109665769A (en) | A kind of super hardening high performance concrete and preparation method thereof | |
| CN110256013A (en) | A kind of assorted fibre enhancing strain hardening cement-base composite material and preparation method thereof | |
| CN109553343A (en) | A kind of refractory concrete material and preparation method thereof | |
| CN108516774A (en) | A kind of high-strength tenacity concrete and preparation method thereof | |
| CN109678429A (en) | A kind of preparation method of the no muscle steel fiber reinforced concrete segment in the tunnel TBM | |
| CN109809778A (en) | Super hardening modified PVA fiber reinforcement sea sand cement-base composite material and preparation method thereof | |
| CN109734384B (en) | Modified carbon nanotube reinforced cement-based composite slurry and preparation method thereof | |
| Sarika | A study on properties of reactive powder concrete | |
| El-Mir et al. | Effect of binder content and sand type on mechanical characteristics of ultra-high performance concrete | |
| Gao et al. | Effect of the dosage of MWCNT's on deterioration resistant of concrete subjected to combined freeze–thaw cycles and sulfate attack | |
| CN110304878A (en) | A kind of high thermal conductivity high tenacity mass concrete and preparation method thereof | |
| CN106986588A (en) | A kind of electric pole high-performance cement based sizing of nano silicon multi-walled carbon nanotube composite strengthening and preparation method thereof | |
| CN104291760B (en) | High-expansion cement based composites and preparation method thereof | |
| CN108481550B (en) | UHPC stirring method and UHPC mixture | |
| CN110218050A (en) | A kind of preparation process of prestressed concrete pipe pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190402 |