CN110407537A - A kind of graphene reinforced reactive-powder-concrete of impact resistance - Google Patents
A kind of graphene reinforced reactive-powder-concrete of impact resistance Download PDFInfo
- Publication number
- CN110407537A CN110407537A CN201910702873.XA CN201910702873A CN110407537A CN 110407537 A CN110407537 A CN 110407537A CN 201910702873 A CN201910702873 A CN 201910702873A CN 110407537 A CN110407537 A CN 110407537A
- Authority
- CN
- China
- Prior art keywords
- graphene
- concrete
- powder
- impact resistance
- reactive
- 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
- 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
- C04B14/022—Carbon
- C04B14/024—Graphite
-
- 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
- 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
- C04B2111/2038—Resistance against physical degradation
Landscapes
- 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)
- Civil Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of graphene reinforced reactive-powder-concretes of impact resistance, which is characterized in that the raw material of the graphene reinforced reactive-powder-concrete of the impact resistance include cement, graphene, silicon ash, flyash, sand, water-reducing agent and water.Graphene can significantly increase dynamic compression strength, peak strain, limiting strain and the impact toughness of Reactive Powder Concrete.Under the strain rate range of 200-800/s, the graphene volume of 0.25%-0.5%, the dynamic compression strength of concrete can be improved 63.9%, and 66.0% and 32.7% can be improved in dynamic peak value strain and dynamic failure strain, and impact toughness can be improved 117.0%.
Description
Technical field
The present invention relates to building material technical field, in particular to the graphene enhancing reactive powder of a kind of impact resistance is mixed
Solidifying soil.
Background technique
Reactive Powder Concrete is gradually answered at present because having many advantages, such as high-intensitive, high-durability and high volume stability
For fields such as bridge, skyscraper, nuclear power and water conservancy projects.However, the missing of coarse aggregate is so that material in Reactive Powder Concrete
There are a large amount of fine aggregate-basal body interfaces for inside.According to theory of high packing, the fine powder material that exhibiting high surface wraps up moisture film can be on boundary
The aggregation of face area, then increases the hole in interface area, weakens the overall performance of concrete material to a certain extent.In addition,
Under impact/Blast Loads, a large amount of shock wave quickly transmits inside concrete structure, the brittleness sheet of concrete itself
Matter makes its rapid damage and failure after absorbing certain energy, significantly reduces antidetonation, the shock resistance of material.
Nanoparticle is to be present in a kind of microscopic species between macroscopic material and elementide.Compared to macroscopic material, receive
Skin effect, quantum effect, small-size effect and the macroscopical tunnel-effect of rice corpuscles assign only not available for its macroscopic material
Special advantage.By mixing nanoparticle into concrete material, the tiny aperture size in cement matrix can be not only refined,
Improve the interface binding intensity of cement matrix；While the nucleating effect of nanoparticle helps it and regulates and controls aquation production on nanoscale
Object pattern, improves the microstructure of composite material, then dramatically increases the energy absorption capability of concrete material.But nanoparticle
High price and high additive (1%-10% of cement quality) weaken its application prospect in practical projects.
Summary of the invention
According to technical problem set forth above, and provide a kind of graphene reinforced reactive-powder-concrete of impact resistance.
New material of the graphene as a kind of individual layer laminated structure being made of carbon atom, it is considered to be most thin in the world is but also most hard
Nano material.It also has both good toughness and can be bent, have become a nanometer material at present while keeping high-intensitive
Expect star's product on boundary.Compared to zero-dimension nano particle, the graphene of two-dimentional stacked sheet structure has good with cement-based material
Good compatibility and excellent chemical stability.It not only can guarantee the filing effect and nucleating effect of nanoparticle, simultaneously
The low-density and small size of graphene make it that can form extensive spatial distribution in basis material under lesser volume, into
And enhancing network is formed, improve the energy absorption of composite material.In addition, the interlayer dislocation sliding of graphene itself, itself and matrix
Between viscous friction effect and itself structural break can further absorb crackle release strain energy, increase stress wave dissipate.
In fact, non-equilibrium local stress caused by the inertia effect is mainly based on tensile load, and stone under the response of dynamic blow stress
The advantages that low-density of black alkene itself, high-modulus and configurations, makes it have superior stress transfer speed (~22.2km/
s).This means that the concentrated stress applied under impact load can quickly go to localize, concrete material is then dramatically increased
Energy absorption capability.
The technological means that the present invention uses is as follows:
The graphene of a kind of graphene reinforced reactive-powder-concrete of impact resistance, the impact resistance enhances activity powder
The raw material of last concrete include cement, graphene, silicon ash, flyash, sand, water-reducing agent and water；
The raw material of the graphene reinforced reactive-powder-concrete of the impact resistance include following parts by weight substance: cement
0.796-1 parts, 0.0025-0.005 parts of graphene, 0.25-0.313 parts of silicon ash, 0.2-0.25 parts of flyash, sand 1.1-1.375
Part, 0.015-0.03 parts of water-reducing agent and 0.3-0.375 parts of water.
The graphene be it is powdered, diameter less than 2 μm, thickness between 1-5nm, the number of plies between 3-10 layers,
Specific surface area is 500m2/ g, density 2-2.25g/cm3, thermal coefficient is greater than 3000W/ (mK), and electric conductivity is greater than 107S/m。
The purity of graphene is greater than 97% in the graphene, and the content of oxygen is 6%, and the content of nitrogen is 2%.
The average grain diameter of the silicon ash is 150nm.
The flyash is second class powered coal ash, partial size 0.01-0.1mm.
The particle size range of the sand is 0.12-0.83mm, SiO in the sand2Content be greater than 99.9%, the sand be stone
Sand.
The water-reducing agent is polycarboxylate water-reducer, solid content 40-50%.
The cement is ordinary portland cement.
The advantages of both present invention combination graphene and Reactive Powder Concrete, utilizes graphene and Reactive Powder Concrete
Itself enhancing mechanism and the promotion humidification that mutually cooperates with, be finally obtained the nano active powder for having shock resistance
Last concrete.
Compared with prior art, the invention has the following advantages that
1, the small-size effect (nano-micrometre scale) of graphene is filled with the micropore of cement matrix and has refined hole
Diameter；Meanwhile the high heat conductance of graphene improves the temperature uniformity inside basis material, then reduces because temperature stress difference generates
Original Cracks, enhancing matrix compactness.It is glued in addition, the high surface energy of graphene increases its interface between concrete substrate
Knot, and the oxygen-containing functional group that its surface is contained also increases the surface active point of graphene to a certain extent, then with aquation
Product forms covalent bond, further increases the interface binding intensity of composite material；More importantly the strong adsorption energy of graphene
Power can absorb certain Free water in aquation early stage and discharge in the later period, then form interior maintenance to concrete material, improve
The overall structure performance of concrete.In fact, compared to highdensity zero-dimension nano particle, the low-density and two-dimensional slice of graphene
Shape structure makes it that can form extensive spatial distribution in basis material under smaller volume, then significantly improves graphene
Nanometer enhancement effect.
2, the high rigidity of graphene improves the elasticity modulus of matrix, and matrix is made to become harder, then that graphene is secured
Ground combines, and increases the structural intergrity of material, improves material resistance capacity to deformation.Under high strain-rate, higher incident energy
It will lead to and occur a large amount of micro-cracks inside concrete material, and the filing effect of graphene and high surface energy can increase material
Energy absorption delays the extension of crackle.In addition, graphene can be by absorbing the proton water in hydrated product to reduce aquation silicon
Distance between calcium, oxygen, silicon atom group in sour calcium gel structure improves the strong and intensity between group, then increases gel structure
The degree of polymerization and molecular chain length improve the network structure of cementitious material, dynamic peak value strain that is total and improving concrete material.
3, the nucleating effect of graphene attracts a large amount of hydrated products to deposit on its surface, to limit the excessive of calcium hydroxide
Its crystal orientation is grown and reduced, the crackle along crystalline fracture path is caused to deflect.On the other hand, two heaps of graphene
Laminated structure (micron order) can be embedded into concrete substrate and play bridging and prick nail, block the propagation path of fine crack,
Delayed crack extension.In addition, the interlayer dislocation sliding of graphene itself, its viscous friction effect between matrix and the knot of itself
Structure fracture can further absorb the strain energy of crackle release, increase stress wave and dissipate.More importantly under impact load,
Well dispersed graphene can form space woven network structure, and the low-density of graphene itself, high-modulus and configurations
The advantages that property, makes it have superior stress transfer speed, and showing significant impact energy goes to localize, and then dramatically increases
The energy absorption capability of concrete material.
4, under 0.25%-0.5% graphene volume, within the scope of 200-500/s strain rate, Reactive Powder Concrete is moved
63.9% and 32.7% can be respectively increased in state compression strength and dynamic failure strain；And when strain rate reaches 800/s, 0.5%
The incorporation of graphene can be such that the dynamic peak value strain of Reactive Powder Concrete and dynamic impulsion toughness improves up to 66.0% He
117.0%.
5, graphene can significantly increase the dynamic compression strength of Reactive Powder Concrete, peak strain, limiting strain and
Impact toughness.Under the strain rate range of 200-800/s, the graphene volume of 0.25%-0.5%, the dynamic resistance to compression of concrete
Intensity highest improves 63.9%, and dynamic peak value strain and dynamic failure strain highest improve 66.0% and 32.7%, impact toughness
Highest can be improved 117.0%.
The present invention can be widely popularized in the fields such as construction material and important infrastructure based on the above reasons.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to do simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the graphene of the impact resistance in a specific embodiment of the invention under 0.25%, 0.5% graphene volume
The histogram that the dynamic compression strength of reinforced reactive-powder-concrete changes with strain rate.
Fig. 2 is the dynamic peak of the graphene reinforced reactive-powder-concrete of impact resistance in a specific embodiment of the invention
The histogram that value strain, dynamic failure strain change with strain rate.
Fig. 3 is the graphene of the impact resistance in a specific embodiment of the invention under 0.25%, 0.5% graphene volume
The histogram that the impact toughness of reinforced reactive-powder-concrete changes with strain rate.
Fig. 4 is the graphene of the impact resistance in a specific embodiment of the invention under 0.25%, 0.5% graphene volume
The histogram that the impact Dissipated energy of reinforced reactive-powder-concrete changes with strain rate.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The graphene of a kind of graphene reinforced reactive-powder-concrete of impact resistance, the impact resistance enhances activity powder
The raw material of last concrete include cement, graphene, silicon ash, flyash, sand, water-reducing agent and water；
The raw material of the graphene reinforced reactive-powder-concrete of the impact resistance include following parts by weight substance: cement
0.796-1 parts, 0.0025-0.005 parts of graphene, 0.25-0.313 parts of silicon ash, 0.2-0.25 parts of flyash, sand 1.1-1.375
Part, 0.015-0.03 parts of water-reducing agent and 0.3-0.375 parts of water.
The graphene be it is powdered, diameter less than 2 μm, thickness between 1-5nm, the number of plies between 3-10 layers,
Specific surface area is 500m2/ g, density are about 2.25g/m, and thermal coefficient is greater than 3000W/ (mK), and electric conductivity is greater than 107s/cm。
The purity of graphene is greater than 97% in the graphene, and the content of oxygen is 6%, and the content of nitrogen is 2%.
The average grain diameter of the silicon ash is 150nm.The flyash is second class powered coal ash, partial size 0.01-0.1mm.Institute
The particle size range for stating sand is 0.12-0.83mm, SiO in the sand2Content be greater than 99.9%, the sand be quartz sand.It is described
Water-reducing agent is polycarboxylate water-reducer, solid content 45%.The cement is ordinary portland cement.
Embodiment
1 raw material of table and its parts by weight
Performance test: impact compression test, sample dimensions Φ are carried out to test specimen using separate type Hopkinson press rods
15.0mm × 30.0mm, impact shank diameter are 37.0mm.It is and right using the strain rate of different size of transmitting pressure control test specimen
Stress wave in elastic rod is acquired.Data handling procedure is as follows:
Data processing, the mean stress of calculation testing piece, mean strain are carried out to collected waveform using three wave method formula
Rate and mean strain；Obtain concrete dynamic stress-strain curve, and record dynamic compression strength, corresponding peak value is answered
Change and limiting strain；It is calculated in conjunction with load-deformation curve area integral and formula, obtains impact toughness and impact Dissipated energy, use
The ability of energy and the size of dissipative stress wave energy are absorbed in deformation process to characterize the material of unit volume.
As shown in Figure 1, when strain rate is 200/s, 0.25%, 0.5% graphene volume can make Reactive Powder Concrete
Dynamic compression strength be respectively increased 63.2% and 63.9%.As shown in Figure 2, under 200/s strain rate range, 0.25% graphite
Alkene volume can make the dynamic failure strain of blank Reactive Powder Concrete improve 32.7%；And work as strain rate and reach 800/s, graphite
When alkene volume is 0.5%, the dynamic peak value of graphene Reactive Powder Concrete, which is strained, can be improved 66.0% compared with blank concrete.
By Fig. 3 and Fig. 4 it is found that under 0.25% graphene volume, the impact toughness and impact consumption of Reactive Powder Concrete
It is scattered to be respectively increased 86.6% and 19.7%, and when graphene volume is 0.5%, both parameters growth of concrete reaches
117.0% and 12.0%.By the above experimental data it is found that under low variability (200-500/s), graphene can be significantly improved
The dynamic compression strength of Reactive Powder Concrete, and under high strain-rate (800/s), the incorporation of graphene is to concrete dynamic peak
Value strain and the raising of impact toughness are advantageously.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (9)
1. a kind of graphene reinforced reactive-powder-concrete of impact resistance, which is characterized in that the graphene of the impact resistance
The raw material of reinforced reactive-powder-concrete include cement, graphene, silicon ash, flyash, sand, water-reducing agent and water.
2. the graphene reinforced reactive-powder-concrete of impact resistance according to claim 1, which is characterized in that described anti-
The raw material of the graphene reinforced reactive-powder-concrete of impact include following parts by weight substance: 0.796-1 parts of cement, graphite
0.0025-0.005 parts of alkene, 0.25-0.313 parts of silicon ash, 0.2-0.25 parts of flyash, 1.1-1.375 parts of sand, water-reducing agent 0.015-
0.03 part and water 0.3-0.375 parts.
3. the graphene reinforced reactive-powder-concrete of impact resistance according to claim 1 or 2, which is characterized in that institute
State graphene be it is powdered, diameter is less than 2 μm, and thickness is between 1-5nm, and between 3-10 layers, specific surface area is the number of plies
500m2/ g, density 2-2.25g/cm3, thermal coefficient is greater than 3000W/ (mK), and electric conductivity is greater than 107S/m。
4. the graphene reinforced reactive-powder-concrete of impact resistance according to claim 1 or 2, which is characterized in that institute
The purity for stating graphene in graphene is greater than 97%, and the content of oxygen is 6%, and the content of nitrogen is 2%.
5. the graphene reinforced reactive-powder-concrete of impact resistance according to claim 1 or 2, which is characterized in that institute
The average grain diameter for stating silicon ash is 150nm.
6. the graphene reinforced reactive-powder-concrete of impact resistance according to claim 1 or 2, which is characterized in that institute
Stating flyash is second class powered coal ash, partial size 0.01-0.1mm.
7. the graphene reinforced reactive-powder-concrete of impact resistance according to claim 1 or 2, which is characterized in that institute
The particle size range for stating sand is 0.12-0.83mm, SiO in the sand2Content be greater than 99.9%, the sand be quartz sand.
8. the graphene reinforced reactive-powder-concrete of impact resistance according to claim 1 or 2, which is characterized in that institute
Stating water-reducing agent is polycarboxylate water-reducer, solid content 40-50%.
9. the graphene reinforced reactive-powder-concrete of impact resistance according to claim 1 or 2, which is characterized in that institute
Stating cement is ordinary portland cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910702873.XA CN110407537A (en) | 2019-07-31 | 2019-07-31 | A kind of graphene reinforced reactive-powder-concrete of impact resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910702873.XA CN110407537A (en) | 2019-07-31 | 2019-07-31 | A kind of graphene reinforced reactive-powder-concrete of impact resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110407537A true CN110407537A (en) | 2019-11-05 |
Family
ID=68364735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910702873.XA Pending CN110407537A (en) | 2019-07-31 | 2019-07-31 | A kind of graphene reinforced reactive-powder-concrete of impact resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110407537A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113408108A (en) * | 2021-05-28 | 2021-09-17 | 山东能之源核电科技有限公司 | Stress calculation system and calculation method of graphite for nuclear power under irradiation |
| CN115231860A (en) * | 2022-06-22 | 2022-10-25 | 桂林理工大学 | Cement-based material of modified graphene and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236850A (en) * | 2015-08-28 | 2016-01-13 | 大连理工大学 | Electric-conductive reactive powder concrete, preparation method and application thereof |
| CN105731933A (en) * | 2016-03-01 | 2016-07-06 | 青岛华高墨烯科技股份有限公司 | Preparation method of graphene oxide/high-strength concrete composite material |
| CN105801047A (en) * | 2016-02-18 | 2016-07-27 | 上海市建筑科学研究院 | Graphene cement-based intelligent concrete material and preparation method thereof |
| CN106082837A (en) * | 2016-06-03 | 2016-11-09 | 广州大学 | A kind of graphene conductive concrete |
-
2019
- 2019-07-31 CN CN201910702873.XA patent/CN110407537A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236850A (en) * | 2015-08-28 | 2016-01-13 | 大连理工大学 | Electric-conductive reactive powder concrete, preparation method and application thereof |
| CN105801047A (en) * | 2016-02-18 | 2016-07-27 | 上海市建筑科学研究院 | Graphene cement-based intelligent concrete material and preparation method thereof |
| CN105731933A (en) * | 2016-03-01 | 2016-07-06 | 青岛华高墨烯科技股份有限公司 | Preparation method of graphene oxide/high-strength concrete composite material |
| CN106082837A (en) * | 2016-06-03 | 2016-11-09 | 广州大学 | A kind of graphene conductive concrete |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113408108A (en) * | 2021-05-28 | 2021-09-17 | 山东能之源核电科技有限公司 | Stress calculation system and calculation method of graphite for nuclear power under irradiation |
| CN115231860A (en) * | 2022-06-22 | 2022-10-25 | 桂林理工大学 | Cement-based material of modified graphene and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Li et al. | Improvement of mechanical properties by incorporating graphene oxide into cement mortar | |
| Yakovlev et al. | Modification of construction materials with multi-walled carbon nanotubes | |
| Chougan et al. | A systematic study on EN-998-2 premixed mortars modified with graphene-based materials | |
| Chand et al. | Correlation of mechanical and tribological properties of organosilane modified cenosphere filled high density polyethylene | |
| El-Feky et al. | Nano-fibrillated cellulose as a green alternative to carbon nanotubes in nano reinforced cement composites | |
| Lin et al. | Effect of fly ash on the behavior of expansive soils: microscopic analysis | |
| Nima et al. | Development of nanotechnology in high performance concrete | |
| CN110407537A (en) | A kind of graphene reinforced reactive-powder-concrete of impact resistance | |
| Gao et al. | Experimental study of nanometer magnesium oxide-modified clay | |
| CN110407539A (en) | A kind of surface functional group processing carbon nano-tube modification Reactive Powder Concrete of high impact properties | |
| Alex et al. | Review on effects of graphene oxide on mechanical and microstructure of cement-based materials | |
| CN109456014A (en) | A kind of nanometer super high strength concrete of high impact resistance | |
| CN113735586B (en) | Boron nitride nanotube/nanosheet-boron carbide ceramic composite material and preparation method thereof | |
| CN113024189B (en) | High-toughness high-cohesiveness C250 ultrahigh-strength hybrid fiber concrete and preparation method thereof | |
| Ling et al. | Effects of nanoparticles on engineering performance of cementitious composites reinforced with PVA fibers | |
| Haque et al. | A comparative investigation on the effects of nanocellulose from bacteria and plant-based sources for cementitious composites | |
| Shubham et al. | Effect of fly ash concentration and its surface modification on fiber reinforced epoxy composite’s mechanical properties | |
| Liu et al. | Research progress on individual effect of graphene oxide in cement-based materials and its synergistic effect with other nanomaterials | |
| Xu et al. | Microstructural characteristics and nano-modification of interfacial transition zone in concrete: A review | |
| Yeke et al. | Effect of graphene oxide on mechanical properties of UHPC and analysis of micro-control mechanism | |
| Li et al. | Co-effects of graphene oxide and cement on geotechnical properties of loess | |
| Verma et al. | Role of graphene-based materials (GO) in improving physicochemical properties of cementitious nano-composites: a review | |
| Han et al. | Basic principles of nano-engineered cementitious composites | |
| CN113024182A (en) | High-toughness high-cohesiveness C80-strength fiber concrete and preparation method thereof | |
| CN113024211A (en) | High-toughness high-cohesiveness C150 strength ultrahigh-strength fiber concrete and preparation method thereof |
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 |
Application publication date: 20191105 |
|
| RJ01 | Rejection of invention patent application after publication |