CN107117909A - It is a kind of mixed with RPC of flyash and preparation method thereof - Google Patents
It is a kind of mixed with RPC of flyash and preparation method thereof Download PDFInfo
- Publication number
- CN107117909A CN107117909A CN201710527271.6A CN201710527271A CN107117909A CN 107117909 A CN107117909 A CN 107117909A CN 201710527271 A CN201710527271 A CN 201710527271A CN 107117909 A CN107117909 A CN 107117909A
- Authority
- CN
- China
- Prior art keywords
- flyash
- water
- cement
- rpc
- steel fibre
- 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.)
- Granted
Links
- 239000010881 fly ash Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000004568 cement Substances 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 239000000835 fiber Substances 0.000 claims abstract description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002956 ash Substances 0.000 claims abstract description 17
- 239000004567 concrete Substances 0.000 claims abstract description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000010703 silicon Substances 0.000 claims abstract description 16
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 16
- 239000006004 Quartz sand Substances 0.000 claims abstract description 14
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 9
- 238000012360 testing method Methods 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 101000952180 Morus alba Mulatexin Proteins 0.000 claims description 4
- 239000011398 Portland cement Substances 0.000 claims description 4
- 241000238370 Sepia Species 0.000 claims description 4
- 229910052681 coesite Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 229910052906 cristobalite Inorganic materials 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 229910052682 stishovite Inorganic materials 0.000 claims description 4
- 230000008961 swelling Effects 0.000 claims description 4
- 229910052905 tridymite Inorganic materials 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims 1
- 238000007493 shaping process Methods 0.000 abstract description 4
- 238000010348 incorporation Methods 0.000 abstract description 2
- 235000013339 cereals Nutrition 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000004574 high-performance concrete Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000010757 Reduction Activity Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- CCEKAJIANROZEO-UHFFFAOYSA-N sulfluramid Chemical group CCNS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F CCEKAJIANROZEO-UHFFFAOYSA-N 0.000 description 1
- 239000011374 ultra-high-performance concrete Substances 0.000 description 1
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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/0263—Hardening promoted by a rise in temperature
-
- 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
-
- 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
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
Abstract
The invention discloses a kind of mixed with RPC of flyash and preparation method thereof.It is made up of mixed with the RPC of flyash the material of following mass parts：0.015 part of 1 part of cement, 1.1 parts of quartz sand, 0.21~0.28 part of silicon ash, 0.07~0.14 part of flyash, 0.1 part of steel fibre, 0.1 part of small component, 0.2 part of water and water reducer；Pass through stir, vibrate shaping, form removal and High Temperature Curing.It is characteristic of the invention that incorporation industrial residue flyash is used as a kind of active component, a kind of On New Reactive Powder Concrete being made through High Temperature Curing, have the advantages that intensity is high, workability is good, cost is low, environmentally friendly and preparation method is simple, it is adapted to the popularization and application in Practical Project, meets the Strategic Concept of China's Green Sustainable.
Description
Technical field
The present invention relates to building material technical field, more particularly to a kind of RPC mixed with flyash and
Its preparation method.
Background technology
RPC is a kind of high intensity, high tenacity, high-durability, the ultra-high performance concrete of low porosity.
It is by rejecting coarse aggregate, improving composition activity and fineness, make the internal flaw (microcrack and hole) of material that it, which configures principle,
It is reduced to a minimum, so as to obtain higher mechanical property and high-durability.Its basic composition material has：Cement, fine quartz
Sand, levigate silica flour, silicon ash, high efficiency water reducing agent, steel fibre etc..Because part composition material cost is higher, to a certain extent
Constrain popularization and application of the RPC in Practical Project.And on the other hand, the clinker such as flyash is current discharge
Measure one of maximum industrial residue, China's annual emissions are up to more than 1.5 hundred million tons at this stage, processing to clinkers such as flyash and
Utilizing question has caused the extensive concern of people.Since 21 century, with the development of technology of high performance concrete, people
It was found that when preparing high performance concrete, it is necessary to mix appropriate admixture, and in many admixtures, flyash has reduction water
Consumption, improve the workability of concrete, improve concrete pumpability, reduce the creeping of concrete, reduce the heat of hydration, save
Many advantages, such as about substantial amounts of cement and fine aggregate.
The content of the invention
It is an object of the invention to provide a kind of mixed with RPC of flyash and preparation method thereof, reduction activity
While powder concrete production cost, the problem of environmental pollution that flyash is brought is solved.
In order to realize above-mentioned target, the present invention is adopted the following technical scheme that：
A kind of RPC mixed with flyash, is made up of the material of following mass parts：1 part of cement, quartz sand 1.1
Part, 0.21~0.28 part of silicon ash, 0.07~0.14 part of flyash, 0.1 part of steel fibre, 0.1 part of small component, 0.2 part of water and diminishing
0.015 part of agent.
The cement is the portland cement of label 52.5, the m of fineness 10 of cement2/ kg, the presetting period >=45min, eventually
Solidifying time≤600min.
The quartz sand particle size is in 0.4mm~0.6mm, SiO2Content more than 99.6%.
0.1~0.2 μm of the silicon ash average grain diameter, specific surface area>20 m2/ g, water demand ratio<120%, loss on ignition 1.45.
The steel fibre is the straight steel fibre of copper facing smooth surface, and diameter 0.22mm, 12~15mm of length, tensile strength exists
More than 2300MPa.
The flyash is gray powdery, 6.34 μm of particle mean size, loss on ignition 0.4.
The group is divided into gray powder end, and main component is polyester fiber, swelling agent and latex protein.
The water reducer is sepia pulvis, water-reducing rate >=25%.
The invention also discloses a kind of method for preparing a kind of described RPC mixed with flyash, specifically
Comprise the following steps：
（1）Stirring：After each raw material are weighed by match ratio, cement, quartz sand, silicon ash, flyash are first poured into mixer
In, then steel fibre is uniformly sieved into mixer through steel sieve, stirring 4 minutes is done, finally by water and high efficiency water reducing agent and group
Divide mixing, uniformly pour into mixer, stirring discharges after 6~8 minutes.
（2）Vibrate shaping：RPC material is once loaded into punching block, omited during charging with spatula along mould inner wall
Plus vibrate, and it is suitable for reading mix is higher by mould, and mould is placed in into shake table vibration moulding, continues to concrete surface pulp.
（3）Form removal:Test specimen is poured finish after immediately with moistening wood chip cover, be put into mark support room conserve 36 hours after tear open
Mould.
（4）High Temperature Curing：The test specimen removed after mould is put into the constant temperature cement concrete curing boxes of HW -30, constant temperature
After 75 DEG C conserve 48 hours, take out test specimen and be put into the foster room of mark.
Compared with prior art, using a kind of formula of RPC mixed with flyash of the present invention, due to mixing
Enter flyash, will have the advantages that：
Further improve the mobility and workability of slurry, so as to reduce viscosity, reduce because viscosity is high and is stirring and is vibrating
When the bubble that introduces, improve the compactness of matrix；
Flyash is not involved in aquation in early stage, so in whole bonding component, although water-cement ratio very little, considering in early stage
To flyash not aquation, the ratio between water/cement is not low, be conducive to cement early stage aquation；
When matrix has been formed using sand, the unhydrated cement granules of fly ash grain and part as skeleton, the knot of hydrated product is wrapped up
Structure, the top layer aquation of subsequent fly ash grain further fills closely knit effect with regard to that can play；
Flyash is mixed, totle drilling cost can also be reduced by substituting part silicon ash, improve the ratio of performance to price；
Industrial waste residue resource is applied in concrete, effectively solves the problem of flyash is largely stored up, and reduces environmental pollution, has
Beneficial to realizing China's Green Sustainable.
Preparation method preparation technology of the present invention is simple, improves multi-component dispersed problem, especially stirs
Steel fibre is uniformly sieved into mixer through steel sieve when mixing, steel fibre can be avoided to form " conglomeration " phenomenon in mixture well.
Under the conditions of High Temperature Curing, the volcano ash effect of active material is excited, and Ca (OH) is reduced to a certain extent2's
Content, generates C-S-H gels, improves the microstructure in interface area, improves the density of slurry, improves RPC
Compression strength and rupture strength.
It is characteristic of the invention that incorporation industrial residue flyash is as a kind of active component, one be made through High Temperature Curing
On New Reactive Powder Concrete is planted, has the advantages that intensity is high, workability is good, cost is low, environmentally friendly and preparation method is simple, is adapted to
The popularization and application in Practical Project, meet the Strategic Concept of China's Green Sustainable.
Embodiment
Illustrate the specific embodiment of the invention with reference to example.
Embodiment 1：
A kind of RPC mixed with flyash, is made up of the material of following mass parts：1 part of cement, quartz sand 1.1
Part, 0.28 part of silicon ash, 0.07 part of flyash, 0.1 part of steel fibre, 0.1 part of small component, 0.2 part of water, 0.015 part of water reducer；
The cement is the portland cement of label 52.5, the m of fineness 10 of cement2/ kg, presetting period >=45min, during final set
Between≤600min.
The quartz sand particle size is in 0.4mm, SiO2Content more than 99.6%.
0.1 μm of the silicon ash average grain diameter, specific surface area>20 m2/ g, water demand ratio<120%, loss on ignition 1.45.
The steel fibre is the straight steel fibre of copper facing smooth surface, and diameter 0.22mm, 12~15mm of length, tensile strength exists
More than 2300MPa.
The flyash is gray powdery, 6.34 μm of particle mean size, loss on ignition 0.4.
The group is divided into gray powder end, and main component is polyester fiber, swelling agent and latex protein.
The water reducer is sepia pulvis, water-reducing rate >=25%.
The method of the above-mentioned RPC mixed with flyash is concretely comprised the following steps：
（1）Stirring：After each raw material are weighed by match ratio, cement, quartz sand, silicon ash, flyash are first poured into mixer
In, then steel fibre is uniformly sieved into mixer through steel sieve, stirring 4 minutes is done, finally by water and high efficiency water reducing agent and group
Divide mixing, uniformly pour into mixer, stirring discharges after 6 minutes.
（2）Vibrate shaping：RPC material is once loaded into punching block, omited during charging with spatula along mould inner wall
Plus vibrate, and it is suitable for reading mix is higher by mould, and mould is placed in into shake table vibration moulding, continues to concrete surface pulp.
（3）Form removal:Test specimen is poured finish after immediately with moistening wood chip cover, be put into mark support room conserve 36 hours after tear open
Mould.
（4）High Temperature Curing：The test specimen removed after mould is put into the constant temperature cement concrete curing boxes of HW -30, constant temperature
After 75 DEG C conserve 48 hours, take out test specimen and be put into the foster room of mark.
Gained flyash activity powder concrete compression strength is 131.8Mpa, and rupture strength is 25.43Mpa.
Embodiment 2：
A kind of RPC mixed with flyash, is made up of the material of following mass parts：1 part of cement, quartz sand 1.1
Part, 0.21 part of silicon ash, 0.14 part of flyash, 0.1 part of steel fibre, 0.1 part of small component, 0.2 part of water, 0.015 part of water reducer；
The cement is the portland cement of label 52.5, the m of fineness 10 of cement2/ kg, presetting period >=45min, during final set
Between≤600min.
The quartz sand particle size is in 0.6mm, SiO2Content more than 99.6%.
0.2 μm of the silicon ash average grain diameter, specific surface area>20 m2/ g, water demand ratio<120%, loss on ignition 1.45.
The steel fibre is the straight steel fibre of copper facing smooth surface, and diameter 0.22mm, 12~15mm of length, tensile strength exists
More than 2300MPa.
The flyash is gray powdery, 6.34 μm of particle mean size, loss on ignition 0.4.
The group is divided into gray powder end, and main component is polyester fiber, swelling agent and latex protein.
The water reducer is sepia pulvis, water-reducing rate >=25%.
The method of the above-mentioned RPC mixed with flyash is concretely comprised the following steps：
（1）Stirring：After each raw material are weighed by match ratio, cement, quartz sand, silicon ash, flyash are first poured into mixer
In, then steel fibre is uniformly sieved into mixer through steel sieve, stirring 4 minutes is done, finally by water and high efficiency water reducing agent and group
Divide mixing, uniformly pour into mixer, stirring discharges after 8 minutes.
（2）Vibrate shaping：RPC material is once loaded into punching block, omited during charging with spatula along mould inner wall
Plus vibrate, and it is suitable for reading mix is higher by mould, and mould is placed in into shake table vibration moulding, continues to concrete surface pulp.
（3）Form removal:Test specimen is poured finish after immediately with moistening wood chip cover, be put into mark support room conserve 36 hours after tear open
Mould.
（4）High Temperature Curing：The test specimen removed after mould is put into the constant temperature cement concrete curing boxes of HW -30, constant temperature
After 75 DEG C conserve 48 hours, take out test specimen and be put into the foster room of mark.
Gained flyash activity powder concrete compression strength is 142.7Mpa, and rupture strength is 23.58Mpa.
Above-described embodiment only illustrates the basic principles, principal features and advantages of the present invention, does not limit in any form
The present invention.Every spirit in present inventive concept is with principle, and those skilled in the art use equivalent substitution and equivalence replacement
The technical scheme obtained etc. mode, within protection scope of the present invention.
Claims (2)
1. a kind of RPC mixed with flyash, it is characterised in that be made up of the material of following mass parts：1 part of water
Mud, 1.1 parts of quartz sand, 0.21~0.28 part of silicon ash, 0.07~0.14 part of flyash, 0.1 part of steel fibre, 0.1 part of small component,
0.2 part of water and 0.015 part of water reducer；
The cement is the portland cement of label 52.5, the m of fineness 10 of cement2/ kg, presetting period >=45min, final setting time
≤600min；
The quartz sand particle size is in 0.4mm~0.6mm, SiO2Content more than 99.6%；
0.1~0.2 μm of the silicon ash average grain diameter, specific surface area>20 m2/ g, water demand ratio<120%, loss on ignition 1.45；
The steel fibre be the straight steel fibre of copper facing smooth surface, diameter 0.22mm, 12~15mm of length, tensile strength is in 2300MPa
More than；
The flyash is gray powdery, 6.34 μm of particle mean size, loss on ignition 0.4；
The group is divided into gray powder end, and main component is polyester fiber, swelling agent and latex protein；
The water reducer is sepia pulvis, water-reducing rate >=25%.
2. the preparation method of the RPC according to claim 1 mixed with flyash, it is characterised in that specific
Step is：
（1）Each raw material are weighed by mass parts：1 part of cement, 1.1 parts of quartz sands, 0.21~0.28 part of silicon ash, 0.07~0.14
Part flyash, 0.1 part of steel fibre, 0.1 part of small component, 0.2 part of water and 0.015 part of water reducer；
（2）By step（1）After match ratio is weighed, first cement, quartz sand, silicon ash, flyash are poured into mixer, then will
Steel fibre is uniformly sieved into mixer through steel sieve, is done stirring 4 minutes, is finally mixed water with high efficiency water reducing agent and small component,
Even pours into mixer, and stirring discharges after 6~8 minutes；
（3）By step（2）Gained RPC material once loads punching block, during charging with spatula along mould inner wall slightly
Vibrate, and it is suitable for reading mix is higher by mould, and mould is placed in into shake table vibration moulding, continues to concrete surface pulp；
（4）Test specimen is poured finish after immediately with moistening wood chip cover, be put into mark support room conserve 36 hours after form removal；
（5）The test specimen removed after mould is put into the constant temperature cement concrete curing boxes of HW -30,75 DEG C of constant temperature is conserved 48 hours
Afterwards, take out test specimen and be put into the foster room of mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710527271.6A CN107117909B (en) | 2017-07-01 | 2017-07-01 | Active powder concrete doped with fly ash and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710527271.6A CN107117909B (en) | 2017-07-01 | 2017-07-01 | Active powder concrete doped with fly ash and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107117909A true CN107117909A (en) | 2017-09-01 |
| CN107117909B CN107117909B (en) | 2020-01-21 |
Family
ID=59730541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710527271.6A Active CN107117909B (en) | 2017-07-01 | 2017-07-01 | Active powder concrete doped with fly ash and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107117909B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107721277A (en) * | 2017-11-13 | 2018-02-23 | 杭州幽若科技有限公司 | A kind of preparation method of high ferro Line for Passenger Transportation RPC trench covers |
| CN109138310A (en) * | 2018-10-23 | 2019-01-04 | 黄贺明 | A kind of superhigh tenacity concrete inorganic decorating board and preparation method thereof of the surface containing pattern |
| CN111620662A (en) * | 2020-06-16 | 2020-09-04 | 湘潭大学 | Concrete doped with modified zeolite |
| CN112909875A (en) * | 2021-02-03 | 2021-06-04 | 江西龙正科技发展有限公司 | Novel super-strength RPC tunnel cable trench cover plate |
| CN112944057A (en) * | 2021-02-03 | 2021-06-11 | 江西龙正科技发展有限公司 | Novel super-strength RPC air duct pipe |
| CN114436596A (en) * | 2022-02-25 | 2022-05-06 | 中铁大桥局集团有限公司 | Ultra-high performance concrete suitable for use in vibration environment and application thereof |
| CN116354657A (en) * | 2023-03-23 | 2023-06-30 | 桂林理工大学 | Preparation method of high-strength UHPC hollow thin-wall structured curbstone |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6858075B1 (en) * | 2004-02-10 | 2005-02-22 | The United States Of America As Represented By The Department Of The Interior, Bureau Of Reclamation | Thin concrete repair composition for alkali-aggregate reaction affected concrete |
| CN102775099A (en) * | 2012-07-30 | 2012-11-14 | 北京工业大学 | Economic active powder concrete mixed superfine cement |
-
2017
- 2017-07-01 CN CN201710527271.6A patent/CN107117909B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6858075B1 (en) * | 2004-02-10 | 2005-02-22 | The United States Of America As Represented By The Department Of The Interior, Bureau Of Reclamation | Thin concrete repair composition for alkali-aggregate reaction affected concrete |
| CN102775099A (en) * | 2012-07-30 | 2012-11-14 | 北京工业大学 | Economic active powder concrete mixed superfine cement |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107721277A (en) * | 2017-11-13 | 2018-02-23 | 杭州幽若科技有限公司 | A kind of preparation method of high ferro Line for Passenger Transportation RPC trench covers |
| CN109138310A (en) * | 2018-10-23 | 2019-01-04 | 黄贺明 | A kind of superhigh tenacity concrete inorganic decorating board and preparation method thereof of the surface containing pattern |
| CN111620662A (en) * | 2020-06-16 | 2020-09-04 | 湘潭大学 | Concrete doped with modified zeolite |
| CN112909875A (en) * | 2021-02-03 | 2021-06-04 | 江西龙正科技发展有限公司 | Novel super-strength RPC tunnel cable trench cover plate |
| CN112944057A (en) * | 2021-02-03 | 2021-06-11 | 江西龙正科技发展有限公司 | Novel super-strength RPC air duct pipe |
| CN114436596A (en) * | 2022-02-25 | 2022-05-06 | 中铁大桥局集团有限公司 | Ultra-high performance concrete suitable for use in vibration environment and application thereof |
| CN116354657A (en) * | 2023-03-23 | 2023-06-30 | 桂林理工大学 | Preparation method of high-strength UHPC hollow thin-wall structured curbstone |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107117909B (en) | 2020-01-21 |
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Application publication date: 20170901 Assignee: Zhongxiang Design Co.,Ltd. Guilin Branch Assignor: GUILIN University OF TECHNOLOGY Contract record no.: X2023980044215 Denomination of invention: A reactive powder concrete mixed with fly ash and its preparation method Granted publication date: 20200121 License type: Common License Record date: 20231023 |