CN107098615A - Concrete antifreezing antimitotic agent - Google Patents
Concrete antifreezing antimitotic agent Download PDFInfo
- Publication number
- CN107098615A CN107098615A CN201710499224.5A CN201710499224A CN107098615A CN 107098615 A CN107098615 A CN 107098615A CN 201710499224 A CN201710499224 A CN 201710499224A CN 107098615 A CN107098615 A CN 107098615A
- Authority
- CN
- China
- Prior art keywords
- concrete
- parts
- phlogopite
- antimitotic agent
- hydrophobically modified
- 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
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
- 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
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0042—Powdery mixtures
-
- 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
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/601—Agents for increasing frost resistance
Abstract
It is to be mixed by 95 parts of hydrophobically modified mica powder with 5 parts of nano silicon in parts by weight the invention discloses a kind of concrete antifreezing antimitotic agent；Wherein hydrophobically modified mica is prepared in accordance with the following methods：The first step, drying muscovite or phlogopite；Second step, muscovite or phlogopite are ground into granularity, and to be 80 μm tail over the sheet micro mist that the thickness below 15% is 2.5 μm；After 3rd step, the white mica powder as made from formula by silane coupler, methyl-silicone oil and second step or the mixing of phlogopite powder, crushed after 150 DEG C of modifications, obtain hydrophobically modified mica powder finished product.The concrete shrinkage amount for adding above-mentioned freeze proof antimitotic agent is declined to a great extent, and cracking resistance is greatly improved.
Description
Technical field
The present invention relates to technical field of concrete additives, more particularly, to a kind of concrete antifreezing antimitotic agent.
Background technology
The freeze proof cracking resistance of concrete is to evaluate the good and bad important indicator of concrete performance.
When environment temperature is reduced, volume can increase 9% or so formation hydraulic pressure after the moisture in concrete pore freezes
Power, the pressure nowhere discharges in the inside concrete of saturation, will cause destruction.At present, concrete is improved frequently with air entraining agent
Anti-freezing property.Air entraining agent can make concrete introduce the micro-bubble for being largely uniformly distributed, stablizing and closing in whipping process,
These micro-bubbles can accommodate the migration of free moisture, relax water pressure when freezing, significantly improve concrete and bear repeatedly
The ability of freeze thawing.But, the air content of concrete often increases by 1%, and compression strength will decline 5% or so.In identical match ratio
Under the conditions of, because concrete introduces a certain amount of air, shrinkage can increase.
The contraction of diversified forms is then the key factor for causing concrete cracking.Wherein, plastic shrinkage is usually by bleeding
Caused, when surface dehydration is too fast has little time supplement, fresh concrete surface can rapidly be dried and produce plastic shrinkage；When mixed
When solidifying soil is in dry environment, pore formation negative pressure is made after the moisture evaporation in its pore, concrete can be caused to dry receipts
Contracting.The whatsoever contraction of form, when more than certain limit, i.e., can produce cracking.To reduce Shrinkage Cracking of Concrete, usually
Use swelling agent.But the swell increment of swelling agent concentrates on hydration reaction early stage, and now concrete strength is very low, and early expansion is moulded
Property deformation consume, late expansion rate present fall after rise even retraction, can increase cracking risk on the contrary.
The content of the invention
The present invention provides a kind of concrete antifreezing antimitotic agent, it is therefore intended that solve the freeze proof cracking resistance of existing concrete not good
The problem of.
To achieve the above object, the present invention can take following technical proposals：
Concrete antifreezing antimitotic agent of the present invention, is the nanometer of hydrophobically modified mica powder by 95 parts by weight and 5 parts by weight
Silica is uniformly mixed；The preparation method of described hydrophobically modified mica comprises the following steps：
The first step, drying：By muscovite or phlogopite in drying in oven, moisture removal is removed；
Second step, milling：It is 80 μm of micro mists tailed over below 15% that muscovite or phlogopite are ground into granularity with flour mill,
Micro mist structure in the form of sheets under microstate, its thickness is 2.5 μm；
3rd step, hydrophobically modified processing：White mica powder or phlogopite powder made from 98 parts by weight second steps are taken, 1 parts by weight are added
Silane coupler and 1 parts by weight methyl-silicone oil, be sent in 150 DEG C of powder surface modifiers and carry out high temperature modified processing
After 15 minutes, crush, it is 80 μm of hydrophobically modified mica powder finished products tailed over below 15% to obtain granularity.
The phlogopite or muscovite are micron-stage sheet-like powder.
Concrete antifreezing antimitotic agent prepared by the present invention dexterously make use of the natural flaky structure and organosilicon material of mica
The hydrophobicity of material, makes concrete after hardening have hydrophobic ability so that the Durability of Concrete related to " water " can be obtained
Solution to a certain extent.
The freeze proof antimitotic agent of the present invention is remaining in that the high footpath that natural mica piece has is thick after various processing
Than feature, after being presented under microstate in the flake structure with dash blocking effect, incorporation concrete, it can be formed without several classes of
Like the same barrier that blocks water of water fender, it can significantly extend the migration path of moisture, the water proof anti-seepage for effectively improving concrete is saturating
Property；Secondly, surface modification treatment is carried out to sheet mica micro mist using silane coupler, formd with good hydrophobic effect
Hydrophobic film, further increases the waterproof impervious characteristic of concrete；Again, nanometer silicon dioxide particle particle diameter is very tiny, mixes
It is filled in after entering in concrete in the Behavior of Hardened Cement Paste hole of concrete, can be bonded, generate with the calcium hydroxide formation in concrete
C-S-H gels, effectively hinder and reduce enrichment of the big crystalline solid of loose calcium hydroxide in the transition region of concrete median surface with determining
To arrangement, by increasing capacitance it is possible to increase the compactness of matrix, the compactness and intensity of concrete are further improved.
After product of the present invention is added in concrete according to 2-5% Blend proportion, modified hydrophobic mica powder therein
Largely disorderly it is distributed in slurry, it is interlaced between piece and piece, form the same system of similar cut-pff wall, nanometer therein
Silica then plays a part of further blocking capillary micropore.When outside moisture endosmosis or internal moisture are met to external migration
During to hydrophobicity thin slice, under the conditions of without pressure, moisture is stopped by hydrophobic force, and migration stops；Under the conditions of having pressure, moisture is along thin slice
Migration, path extension, transition process slows down.Therefore, on the one hand, extraneous water is difficult to enter into inside concrete, shut out from root
Concrete absolutely is by frost heaving failure；On the other hand, internal moisture is displaced outwardly being obstructed, and slow down dehydration process, reduces coagulation
The plastic shrinkage of soil and dry contraction.
Reference《Concrete admixture》（GB8076-2008）Testing inspection is carried out to the cryoprotective effects of the present invention, works as volume
For 5% when, relative dynamic elastic modulus are 85.3% after concrete sample freeze thawing 200 times, are more than 80% to anti-freeze additional agent higher than specification
Requirement, the anti-freezing property of concrete greatly improved.
Cracking resistance testing inspection is carried out using flat board constraint early stage crazing-resistance test, when volume is 5%, relative to same water
Glue is than contrast groups, concrete cracking area reduction by 46.9%（See the data of embodiment 1）.Under microstate, freeze proof antimitotic agent thin slice with
The contact angle of water is more than 120 °, after concrete adds freeze proof antimitotic agent, has neither part nor lot in early days at the tiny moisture of hydration reaction
Among the encirclement of a large amount of freeze proof antimitotic agent thin slices, one layer of waterproof membrane is wrapped up in equivalent to moisture, in addition freeze proof antimitotic agent sheet
The unique arrangement of particle, forms barrier layer by layer, moisture loss is greatly lowered, therefore the shrinkage of concrete is corresponding to moisture
Decline, cracking resistance is greatly improved.
Brief description of the drawings
Fig. 1 is the hydrophobic effect figure of the present invention.
Fig. 2 is the concrete water repellent design sketch for mixing freeze proof antimitotic agent of the invention.
Embodiment
Embodiment 1：
The first step, drying：Weigh appropriate white mica powder（Or phlogopite, effect is equal with muscovite）, dried in 105 DEG C of baking ovens
Dry 48 h, remove moisture removal；Above-mentioned white mica powder is commercially available micron-stage sheet-like powder, wherein SiO2Content is 62.4%, Al2O3Content
For 20.4%.
Second step, milling：Above-mentioned drying white mica powder is further crushed with high fineness pulverizing machine, obtains thick under microstate
The sheet micro mist that about 2.5 μm of degree, when being sieved with 80 μm of cement negative pressure sieves, is tailed over below 15%.
3rd step, hydrophobically modified processing：White mica powder made from 98 parts by weight second steps is taken, the KH- of 1 parts by weight is added
The methyl-silicone oil of 550 silane couplers and 1 parts by weight, is sent in 150 DEG C of powder surface modifiers and carries out high temperature modified place
Reason 15 minutes, goes out and carries out grinding after machine again, obtains granularity and is tailed over for 80 μm（Cement negative pressure is sieved）Hydrophobically modified below 15%
Mica powder.
4th step, mixing：By hydrophobically modified mica powder and the nanometer titanium dioxide of 5 parts by weight made from the step of 95 parts by weight the 3rd
Silicon is uniformly mixed, that is, obtains the microcosmic powdered concrete antifreezing antimitotic agent finished product in flake structure with silane overlay film.
Using finished product concrete antifreezing antimitotic agent made from embodiment 1 as trial target, following experiments are carried out freeze proof to test its
Cracking resistance.
Water is sprinkling upon on powdered concrete antifreezing antimitotic agent, as shown in figure 1, water is coated simultaneously by freeze proof antimitotic agent powder
In drops, without penetrating into inside freeze proof antimitotic agent, it can be seen that, concrete antifreezing antimitotic agent prepared by the present invention has
Good hydrophobic effect.
In freeze proof antimitotic agent incorporation concrete prepared by the present invention, water is then sprinkling upon concrete surface again, such as Fig. 2 institutes
Show, water is in drops, without penetrating into concrete, it can be seen that, blending the concrete of freeze proof antimitotic agent of the invention has
Good water repellent effect.
It is anti-to finished product concrete antifreezing made from embodiment 1 to study the freeze proof effect of prestressed of freeze proof antimitotic agent of the invention
Split agent and carry out series of contrast, as a result see the table below 1,2.
Wherein, JZ is the blank group that water reducer and freeze proof antimitotic agent volume are zero, and KDKL3 represents that freeze proof antimitotic agent volume is
3% group, KDKL5 represents that freeze proof antimitotic agent volume is 5% group, and JS represents to mix water reducer group.Due to concrete antifreezing antimitotic agent tool
There is certain water-reducing effect, with the increase of volume, water consumption reduction causes water-cement ratio to reduce, the properties meeting of concrete
Change therewith.Therefore, add again and mix water reducer group i.e. JS groups, make the water-cement ratio of KDKL5 groups and JS groups by filling water reducer
It is identical, and concrete slump is close, makes contrast more convincing.
With the increase of freeze proof antimitotic agent incorporation of the invention it can be seen from the data of table 1, water consumption is in reduction trend,
Concrete strength is in increase tendency, illustrates the freeze proof antimitotic agent of the present invention and has certain water-reducing property, is conducive to improving concrete
Intensity.It can be seen from the data of table 2 when volume is 3%, freeze-thawing resistant cycle-index is 175 times, when volume is 5%, freeze-thawing resistant
Cycle-index is 300 times, and blank group only has 25 times, mixes water reducer group and only has 75 times, it is obvious that freeze proof antimitotic agent of the invention
Improve the anti-freezing property of concrete.
Research shows that area of cracks and the water-cement ratio of concrete have much relations, and water-cement ratio is smaller, easier cracking.Cause
This, cracking resistance contrast test needs to keep water-cement ratio identical.In table 1, two groups are can be seen that from the data of KDKL5 groups and JS groups
The water-cement ratio of concrete is identical.The data display of table 2, JS group early stage cracking resistances area of cracks is 1003.5 mm2/m2, KDKL5 groups early stage
Cracking resistance area of cracks is 532.4 mm2/m2.By contrast, cracking resistance water reducer of the invention makes area of cracks reduce by 46.9%, display
Good effect of prestressed.
Claims (2)
1. a kind of concrete antifreezing antimitotic agent, it is characterised in that：It is the hydrophobically modified mica powder and 5 parts by weight by 95 parts by weight
Nano silicon is uniformly mixed；The preparation method of described hydrophobically modified mica comprises the following steps：
The first step, drying：By muscovite or phlogopite in drying in oven, moisture removal is removed；
Second step, milling：It is 80 μm of micro mists tailed over below 15% that muscovite or phlogopite are ground into granularity with flour mill,
Micro mist structure in the form of sheets under microstate, its thickness is 2.5 μm；
3rd step, hydrophobically modified processing：White mica powder or phlogopite powder made from 98 parts by weight second steps are taken, 1 parts by weight are added
Silane coupler and 1 parts by weight methyl-silicone oil, be sent in 150 DEG C of powder surface modifiers and carry out high temperature modified processing
After 15 minutes, crush, it is 80 μm of hydrophobically modified mica powder finished products tailed over below 15% to obtain granularity.
2. concrete antifreezing antimitotic agent according to claim 1, it is characterised in that：The phlogopite or muscovite are micron
Level sheet powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710499224.5A CN107098615B (en) | 2017-06-27 | 2017-06-27 | Concrete antifreezing antimitotic agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710499224.5A CN107098615B (en) | 2017-06-27 | 2017-06-27 | Concrete antifreezing antimitotic agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107098615A true CN107098615A (en) | 2017-08-29 |
| CN107098615B CN107098615B (en) | 2019-06-21 |
Family
ID=59663944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710499224.5A Active CN107098615B (en) | 2017-06-27 | 2017-06-27 | Concrete antifreezing antimitotic agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107098615B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108341619A (en) * | 2018-05-03 | 2018-07-31 | 黄河勘测规划设计有限公司 | A kind of concrete inside and outside water translocation inhibitor |
| CN108569872A (en) * | 2018-05-03 | 2018-09-25 | 黄河勘测规划设计有限公司 | A kind of protective materials and the application as building surface protective layer and reparation building corrosion location |
| CN109095856A (en) * | 2018-09-08 | 2018-12-28 | 河南正大金盾环保材料有限公司 | A kind of waterproof mortar and preparation method thereof |
| CN109206045A (en) * | 2018-09-08 | 2019-01-15 | 河南正大金盾环保材料有限公司 | A kind of waterproof nano powder and preparation method thereof |
| CN109395872A (en) * | 2018-10-19 | 2019-03-01 | 西安科技大学 | A kind of hydrophobic molybdic tailing raw powder's production technology |
| CN110357658A (en) * | 2019-07-01 | 2019-10-22 | 蚌埠市阿尔贝斯建材有限公司 | A kind of lightweight cracking resistance adhesive mortar |
| CN111348854A (en) * | 2020-03-12 | 2020-06-30 | 河南天竞骏腾新材料研究院有限公司 | Waterproof and antifreezing additive for mortar and concrete and preparation method thereof |
| CN114656280A (en) * | 2022-04-21 | 2022-06-24 | 常熟路桥工程有限公司 | High-performance foam concrete and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362920A (en) * | 2008-09-08 | 2009-02-11 | 李少香 | Anticorrosion coating material |
| CN101538137A (en) * | 2009-04-24 | 2009-09-23 | 吴运华 | High strength silica powder concrete and construction technology |
| DE102008060228A1 (en) * | 2008-12-04 | 2010-06-10 | Merck Patent Gmbh | Surface modified pigments |
| CN101786822A (en) * | 2009-05-05 | 2010-07-28 | 施无我 | High-impervious microcrystal self-curing type cement additive |
| CN102701637A (en) * | 2012-04-16 | 2012-10-03 | 中国铁道科学研究院铁道建筑研究所 | High impedance agent for track board/ roadbed slab concrete |
| US20150140222A1 (en) * | 2013-11-18 | 2015-05-21 | Nano And Advanced Materials Institute Limited | Hydrophobic Coating Composition And Method Of Imparting Hydrophobicity Onto A Surface |
| CN104876511A (en) * | 2015-05-26 | 2015-09-02 | 芜湖鑫曜建材实业有限公司 | Anti-crack concrete |
| CN105176374A (en) * | 2015-10-13 | 2015-12-23 | 东来涂料技术（上海）有限公司 | Water-based primer applied to epoxy/carbon fiber composite and preparation method for water-based primer |
-
2017
- 2017-06-27 CN CN201710499224.5A patent/CN107098615B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362920A (en) * | 2008-09-08 | 2009-02-11 | 李少香 | Anticorrosion coating material |
| DE102008060228A1 (en) * | 2008-12-04 | 2010-06-10 | Merck Patent Gmbh | Surface modified pigments |
| CN101538137A (en) * | 2009-04-24 | 2009-09-23 | 吴运华 | High strength silica powder concrete and construction technology |
| CN101786822A (en) * | 2009-05-05 | 2010-07-28 | 施无我 | High-impervious microcrystal self-curing type cement additive |
| CN102701637A (en) * | 2012-04-16 | 2012-10-03 | 中国铁道科学研究院铁道建筑研究所 | High impedance agent for track board/ roadbed slab concrete |
| US20150140222A1 (en) * | 2013-11-18 | 2015-05-21 | Nano And Advanced Materials Institute Limited | Hydrophobic Coating Composition And Method Of Imparting Hydrophobicity Onto A Surface |
| CN104876511A (en) * | 2015-05-26 | 2015-09-02 | 芜湖鑫曜建材实业有限公司 | Anti-crack concrete |
| CN105176374A (en) * | 2015-10-13 | 2015-12-23 | 东来涂料技术（上海）有限公司 | Water-based primer applied to epoxy/carbon fiber composite and preparation method for water-based primer |
Non-Patent Citations (1)
| Title |
|---|
| 郑水林等: "《粉体表面改性》", 30 September 2011, 中国建材工业出版社 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108341619B (en) * | 2018-05-03 | 2020-07-07 | 黄河勘测规划设计研究院有限公司 | Internal and external water migration inhibitor for concrete |
| CN108569872A (en) * | 2018-05-03 | 2018-09-25 | 黄河勘测规划设计有限公司 | A kind of protective materials and the application as building surface protective layer and reparation building corrosion location |
| CN108569872B (en) * | 2018-05-03 | 2021-02-19 | 黄河勘测规划设计研究院有限公司 | Protective material and application of protective material as building surface protective layer and repairing building corrosion part |
| CN108341619A (en) * | 2018-05-03 | 2018-07-31 | 黄河勘测规划设计有限公司 | A kind of concrete inside and outside water translocation inhibitor |
| US20200346978A1 (en) * | 2018-05-03 | 2020-11-05 | Yellow River Engineering Consulting Co., Ltd. | Composition of matter for inhibiting water migration between inside and outside of concrete |
| CN109206045A (en) * | 2018-09-08 | 2019-01-15 | 河南正大金盾环保材料有限公司 | A kind of waterproof nano powder and preparation method thereof |
| CN109095856A (en) * | 2018-09-08 | 2018-12-28 | 河南正大金盾环保材料有限公司 | A kind of waterproof mortar and preparation method thereof |
| CN109095856B (en) * | 2018-09-08 | 2021-04-02 | 河南正大金盾环保材料有限公司 | Waterproof mortar and preparation method thereof |
| CN109206045B (en) * | 2018-09-08 | 2021-04-09 | 河南正大金盾环保材料有限公司 | Waterproof nano powder and preparation method thereof |
| CN109395872A (en) * | 2018-10-19 | 2019-03-01 | 西安科技大学 | A kind of hydrophobic molybdic tailing raw powder's production technology |
| CN110357658A (en) * | 2019-07-01 | 2019-10-22 | 蚌埠市阿尔贝斯建材有限公司 | A kind of lightweight cracking resistance adhesive mortar |
| CN111348854A (en) * | 2020-03-12 | 2020-06-30 | 河南天竞骏腾新材料研究院有限公司 | Waterproof and antifreezing additive for mortar and concrete and preparation method thereof |
| CN114656280A (en) * | 2022-04-21 | 2022-06-24 | 常熟路桥工程有限公司 | High-performance foam concrete and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107098615B (en) | 2019-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107098615B (en) | Concrete antifreezing antimitotic agent | |
| Bahobail | The mud additives and their effect on thermal conductivity of adobe bricks | |
| CN106316269B (en) | Light aggregate concrete | |
| CN106829979B (en) | A method of preparing monolithic talcum powder | |
| CN109437761A (en) | A kind of preparation method of energy conservation and environmental protection lightweight aggregate concrete | |
| CN108002776A (en) | A kind of concrete being suitable under low temperature difference environment | |
| CN108640591B (en) | Organosilicon integral waterproof concrete | |
| CN112645655A (en) | Green high-performance concrete and preparation method thereof | |
| WO2019210598A1 (en) | Migration inhibitor for internal and external moisture of concrete | |
| CN109970405A (en) | A kind of concrete and preparation method thereof | |
| CN110183187A (en) | A kind of modified water-proofing anticracking cement mortar | |
| Medina et al. | Improvement of the mechanical and physical properties of cement pastes and mortars through the addition isostatic graphite | |
| CN108484018A (en) | A kind of light mortar and its processing method for traditional earth kiln local-style dwelling houses wall coating | |
| CN107352860A (en) | A kind of preparation method of maritime concrete protection land used polymer coating materials | |
| Cechova | The effect of linseed oil on the properties of lime-based restoration mortars | |
| Van Gemert et al. | Evolution in modeling microstructure formation in polymer-cement concrete | |
| CN109650819A (en) | A kind of high intensity high-durability haydite concrete product and preparation method thereof | |
| CN107746231A (en) | The production method of southern interior wall cement mortar | |
| CN109437763B (en) | Microcrack self-repairing cement-based composite material and preparation method thereof | |
| CN104193217B (en) | A kind of low porosity high frost resistance gelling agent and preparation method thereof | |
| CN107324729B (en) | A kind of high-performance fiber concrete of C100 strength grade and preparation method thereof | |
| CN108658537A (en) | A kind of maize straw and polymer-modified cement composite architectural materials | |
| CN105801072B (en) | A kind of osmosis type waterproof material and preparation method thereof | |
| CN106966643A (en) | Jacking concrete filled steel tube and preparation method thereof | |
| KR100424086B1 (en) | The method of forming intercoption layer of water by soil cement, using soil of the very spot |
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 | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 450003 Jinshui Road 109, Zhengzhou City, Henan Province Applicant after: YELLOW RIVER ENGINEERING CONSULTING Co.,Ltd. Address before: 450003 Jinshui Road 109, Zhengzhou City, Henan Province Applicant before: YELLOW RIVER ENGINEERING CONSULTING Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210818 Address after: 450003 No. 109 Jinshui Road, Jinshui District, Henan, Zhengzhou Patentee after: YELLOW RIVER ENGINEERING CONSULTING Co.,Ltd. Patentee after: Jianghe Engineering Inspection Co.,Ltd. Address before: 450003 No. 109 Jinshui Road, Henan, Zhengzhou Patentee before: YELLOW RIVER ENGINEERING CONSULTING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450003 No. 109 Jinshui Road, Jinshui District, Henan, Zhengzhou Patentee after: YELLOW RIVER ENGINEERING CONSULTING Co.,Ltd. Patentee after: Jianghe Anlan Engineering Consulting Co.,Ltd. Address before: 450003 No. 109 Jinshui Road, Jinshui District, Henan, Zhengzhou Patentee before: YELLOW RIVER ENGINEERING CONSULTING Co.,Ltd. Patentee before: Jianghe Engineering Inspection Co.,Ltd. |