CN105523745B - A kind of bridge expanssion joint fast repairing material - Google Patents
A kind of bridge expanssion joint fast repairing material Download PDFInfo
- Publication number
- CN105523745B CN105523745B CN201610010582.0A CN201610010582A CN105523745B CN 105523745 B CN105523745 B CN 105523745B CN 201610010582 A CN201610010582 A CN 201610010582A CN 105523745 B CN105523745 B CN 105523745B
- Authority
- CN
- China
- Prior art keywords
- parts
- bridge expanssion
- component
- repairing material
- expanssion joint
- 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.)
- Active
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
- C04B28/14—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 calcium sulfate 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
- C04B2111/72—Repairing or restoring existing buildings or building materials
- C04B2111/723—Repairing reinforced concrete
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)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to a kind of bridge expanssion joint fast repairing material, it is made up of two kinds of components of A and B；Wherein A is made up of following weight parts component：25 ~ 30 parts of quick hardening sulphoaluminate cement, 5 ~ 10 parts of Portland cement, 1 ~ 3 part of anhydrite, 1 ~ 3 part of silicon ash, 55 ~ 65 parts of quartz sand, 0.5 ~ 1 part of water reducer, 0.5 ~ 1 part of boric acid, 1 ~ 3 part of fiber；B is made up of following weight parts component：35 ~ 45 parts of carboxylic styrene butadiene latex, 0.5 ~ 1 part of lithium salts, 0.5 ~ 1 part of lithium salts defoamer, 55 ~ 65 parts of water.The features such as present invention has early strength height, stable long-term strength growth, low modulus of elasticity, high adhesion strength and cracking resistance, and practice of construction is easy to use.
Description
Technical field
The present invention relates to a kind of super hardening flexible concrete material, more particularly to a kind of bridge expanssion joint Rapid-Repair material
Material.
Background technology
Bridge expanssion joint both sides concrete is also easy to produce stress concentration and damaged when being hit.Expansion joint both sides concrete
Bonding failure is the principal mode of expansion joint destruction between destruction and concrete and steel plate, old concrete, thus can cause and stretch
The further destructions such as contracting seam steel plate is exposed, reinforcing bar fracture, ultimately result in road surface and being connected for bridge floor are not smooth, produce early stage broken
It is bad, influence traffic circulation.
By the special role that expansion joint is born, its service life is relatively low, and what is had even damages being open to traffic then
It is bad, and limited by position and Service Environment, the repairing at expansion joint is always more scabrous problem.The repairing at expansion joint is present
Following two problems：
(1) maintenance of expansion joint belongs to maintenance project, it is necessary to which close traffic, causes the reduction of road rate, for highway
For, the loss thus brought is even more serious.Conventional cement concrete material is longer, it is necessary to the blocked road time curing cycle
It is long.
(2) expansion joint belongs to road, bridge junction, it is necessary to have good bonding with steel plate and old concrete, secondly, it is necessary to hold
By loaded deformation, thus the requirement to expanded joint material is flexible adhesion patching material, and current conventional repair material is water
, there is imperfect bonding and the fracture that is easily hit in cement concrete material.
Steel fiber reinforced concrete and fast hardening concrete are the major ways of current expansion joint repairing, but are due to that its modulus is inclined
Height, causes secondary badly broken, while steel fiber reinforced concrete curing time is more than 7 days, it is larger to traffic impact.Polymer is fast
Dry concrete can overcome two above shortcoming simultaneously, and high with adhesion strength, the features such as speed that is open to traffic is fast is following expansion joint
The main development direction of patching material.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of good bridge expanssion joint Rapid-Repair material of workability
Material.
To solve the above problems, a kind of bridge expanssion joint fast repairing material of the present invention, it is characterised in that：It by
Two kinds of component compositions of A and B；Wherein
A is made up of following weight parts component：25 ~ 30 parts of quick hardening sulphoaluminate cement, 5 ~ 10 parts of Portland cement, firmly
1 ~ 3 part of gypsum, 1 ~ 3 part of silicon ash, 55 ~ 65 parts of quartz sand, 0.5 ~ 1 part of water reducer, 0.5 ~ 1 part of boric acid, 1 ~ 3 part of fiber；
B is made up of following weight parts component：35 ~ 45 parts of carboxylic styrene butadiene latex, 0.5 ~ 1 part of lithium salts, lithium salts defoamer 0.5 ~ 1
Part, 55 ~ 65 parts of water.
The strength grade of the quick hardening sulphoaluminate cement is 42.5 or 52.5 grades.
The strength grade of the Portland cement is 52.5 grades.
The specific surface area of the silicon ash is 20000m2/kg。
The water reducer is high performance water reducing agent of polyocarboxy acid.
The fiber refer to a diameter of 6mm polypropylene fibre and a diameter of 12mm polypropylene fibre by 1:1 quality
Than mixing composition.
A kind of application method of bridge expanssion joint fast repairing material as described above, comprises the following steps：
(1) weighed by proportioning；
(2) by quick hardening sulphoaluminate cement, Portland cement, anhydrite, silicon ash, quartz sand, water reducer, boric acid, fibre
After dimension is well mixed, component A is obtained；
(3) lithium salts is prepared into after 10% aqueous solution, adds carboxylic styrene butadiene latex, lithium salts defoamer and be well mixed, obtain
To B component；
(4) the component A and the B component are pressed 1：After 1 mass ratio is well mixed, the quality such as addition and the component A
Particle diameter be 5 ~ 20mm rubble, be poured into after fully mixing and stirring in 20 minutes it is floating in the expansion joint of breakage, finally, watering
Health 2 hours is to open to traffic.
The present invention has advantages below compared with prior art：
1st, the present invention main morning that material is provided by sulphate aluminium cement, Portland cement and gypsum ternary system
Phase intensity, and deformability is provided by carboxylic styrene butadiene latex, provide anti-cracking ability by doping fiber.Using poly-carboxylic high-performance
Water reducer effectively can be disperseed to cement, and cause patching material to have optimal apply with good space steric effect
Work performance.（Referring to table 1）.
Table 1：Bridge expanssion joint patching material performance indications
As it can be seen from table 1 bridge expanssion joint patching material of the present invention has initial slump high, 0.5 hour slump
Loss is small, the features such as early strength height, stable long-term strength growth, low modulus of elasticity, high adhesion strength and cracking resistance.
2nd, constructed present invention employs two kinds of components of A, B, practice of construction is easy to use.
Embodiment
A kind of bridge expanssion joint fast repairing material of embodiment 1, it is made up of two kinds of components of A and B；Wherein
A is made up of following weight parts component：25 parts of quick hardening sulphoaluminate cement, 5 parts of Portland cement, anhydrite 3
Part, 3 parts of silicon ash, 60 parts of quartz sand, 0.5 part of water reducer, 0.5 part of boric acid, 3 parts of fiber；
B is made up of following weight parts component：35 parts of carboxylic styrene butadiene latex, 0.5 part of lithium salts, 0.5 part of lithium salts defoamer, water 65
Part.
Wherein：The strength grade of quick hardening sulphoaluminate cement is 42.5 or 52.5 grades.Intensity of Portland cement etc.
Level is 52.5 grades.The specific surface area of silicon ash is 20000m2/kg.Water reducer is high performance water reducing agent of polyocarboxy acid.Fiber refers to diameter
The polypropylene fibre of polypropylene fibre and a diameter of 12mm for 6mm presses 1:1 mass ratio mixes composition.
The application method of the bridge expanssion joint fast repairing material, comprises the following steps：
(1) weighed by proportioning；
(2) by quick hardening sulphoaluminate cement, Portland cement, anhydrite, silicon ash, quartz sand, water reducer, boric acid, fibre
After dimension is well mixed, component A is obtained；
(3) lithium salts is prepared into after 10% aqueous solution, adds carboxylic styrene butadiene latex, lithium salts defoamer and be well mixed, obtain
To B component；
(4) component A and B component are pressed 1：After 1 mass ratio is well mixed, the particle diameter added with the quality such as the component A is
5 ~ 20mm rubble, was poured into 20 minutes floating in the expansion joint of breakage after fully mixing and stirring, and finally, watering health 2 is small
Up to open to traffic.
A kind of bridge expanssion joint fast repairing material of embodiment 2, it is made up of two kinds of components of A and B；Wherein
A is made up of following weight parts component：25 parts of quick hardening sulphoaluminate cement, 5 parts of Portland cement, anhydrite 3
Part, 1.5 parts of silicon ash, 60 parts of quartz sand, 0.5 part of water reducer, 1 part of boric acid, 2 parts of fiber；
B is made up of following weight parts component：45 parts of carboxylic styrene butadiene latex, 0.5 part of lithium salts, 0.5 part of lithium salts defoamer, water 59
Part.
Wherein：Quick hardening sulphoaluminate cement, Portland cement, silicon ash, water reducer, fiber be the same as Example 1.
The application method be the same as Example 1 of the bridge expanssion joint fast repairing material.
A kind of bridge expanssion joint fast repairing material of embodiment 3, it is made up of two kinds of components of A and B；Wherein
A is made up of following weight parts component：28 parts of quick hardening sulphoaluminate cement, 10 parts of Portland cement, anhydrite 1
Part, 1 part of silicon ash, 55 parts of quartz sand, 1 part of water reducer, 1 part of boric acid, 3 parts of fiber；
B is made up of following weight parts component：40 parts of carboxylic styrene butadiene latex, 0.75 part of lithium salts, 0.75 part of lithium salts defoamer, water
58.5 parts.
Wherein：Quick hardening sulphoaluminate cement, Portland cement, silicon ash, water reducer, fiber be the same as Example 1.
The application method be the same as Example 1 of the bridge expanssion joint fast repairing material.
A kind of bridge expanssion joint fast repairing material of embodiment 4, it is made up of two kinds of components of A and B；Wherein
A is made up of following weight parts component：25 parts of quick hardening sulphoaluminate cement, 8 parts of Portland cement, anhydrite 2
Part, 2 parts of silicon ash, 59 parts of quartz sand, 1 part of water reducer, 1 part of boric acid, 2 parts of fiber；
B is made up of following weight parts component：40 parts of carboxylic styrene butadiene latex, 1 part of lithium salts, 1 part of lithium salts defoamer, 58 parts of water.
Wherein：Quick hardening sulphoaluminate cement, Portland cement, silicon ash, water reducer, fiber be the same as Example 1.
The application method be the same as Example 1 of the bridge expanssion joint fast repairing material.
A kind of bridge expanssion joint fast repairing material of embodiment 5, it is made up of two kinds of components of A and B；Wherein
A is made up of following weight parts component：25 parts of quick hardening sulphoaluminate cement, 10 parts of Portland cement, anhydrite 3
Part, 3 parts of silicon ash, 55 parts of quartz sand, 1 part of water reducer, 1 part of boric acid, 1 part of fiber；
B is made up of following weight parts component：35 parts of carboxylic styrene butadiene latex, 0.5 part of lithium salts, 0.5 part of lithium salts defoamer, water 64
Part.
Wherein：Quick hardening sulphoaluminate cement, Portland cement, silicon ash, water reducer, fiber be the same as Example 1.
The application method be the same as Example 1 of the bridge expanssion joint fast repairing material.
A kind of bridge expanssion joint fast repairing material of embodiment 6, it is made up of two kinds of components of A and B；Wherein
A is made up of following weight parts component：25 parts of quick hardening sulphoaluminate cement, 10 parts of Portland cement, anhydrite 3
Part, 3 parts of silicon ash, 55 parts of quartz sand, 1 part of water reducer, 1 part of boric acid, 1 part of fiber；
B is made up of following weight parts component：45 parts of carboxylic styrene butadiene latex, 1 part of lithium salts, 1 part of lithium salts defoamer, 55 parts of water.
Wherein：Quick hardening sulphoaluminate cement, Portland cement, silicon ash, water reducer, fiber be the same as Example 1.
The application method be the same as Example 1 of the bridge expanssion joint fast repairing material.
A kind of bridge expanssion joint fast repairing material of embodiment 7, it is made up of two kinds of components of A and B；Wherein
A is made up of following weight parts component：30 parts of quick hardening sulphoaluminate cement, 10 parts of Portland cement, anhydrite 3
Part, 3 parts of silicon ash, 65 parts of quartz sand, 0.8 part of water reducer, 0.8 part of boric acid, 2 parts of fiber；
B is made up of following weight parts component：45 parts of carboxylic styrene butadiene latex, 1 part of lithium salts, 1 part of lithium salts defoamer, 55 parts of water.
Wherein：Quick hardening sulphoaluminate cement, Portland cement, silicon ash, water reducer, fiber be the same as Example 1.
The application method be the same as Example 1 of the bridge expanssion joint fast repairing material.
The unit of parts by weight meter mass ratio is kg in above-described embodiment 1 ~ 7.
Claims (7)
1. a kind of bridge expanssion joint fast repairing material, it is characterised in that：It is made up of two kinds of components of A and B；Wherein
A is made up of following weight parts component：25 ~ 30 parts of quick hardening sulphoaluminate cement, 5 ~ 10 parts of Portland cement, anhydrite
1 ~ 3 part, 1 ~ 3 part of silicon ash, 55 ~ 65 parts of quartz sand, 0.5 ~ 1 part of water reducer, 0.5 ~ 1 part of boric acid, 1 ~ 3 part of fiber；
B is made up of following weight parts component：35 ~ 45 parts of carboxylic styrene butadiene latex, 0.5 ~ 1 part of lithium salts, 0.5 ~ 1 part of lithium salts defoamer,
55 ~ 65 parts of water.
2. a kind of bridge expanssion joint fast repairing material as claimed in claim 1, it is characterised in that：The quick hardening sulphoaluminate
The strength grade of cement is 42.5 or 52.5 grades.
3. a kind of bridge expanssion joint fast repairing material as claimed in claim 1, it is characterised in that：The normal silicate water
The strength grade of mud is 52.5 grades.
4. a kind of bridge expanssion joint fast repairing material as claimed in claim 1, it is characterised in that：The ratio surface of the silicon ash
Product is 20000m2/kg。
5. a kind of bridge expanssion joint fast repairing material as claimed in claim 1, it is characterised in that：The water reducer is poly- carboxylic
Sour high-performance water reducing agent.
6. a kind of bridge expanssion joint fast repairing material as claimed in claim 1, it is characterised in that：The fiber refers to diameter
The polypropylene fibre of polypropylene fibre and a diameter of 12mm for 6mm presses 1:1 mass ratio mixes composition.
7. a kind of application method of bridge expanssion joint fast repairing material as claimed in claim 1, comprises the following steps：
(1) weighed by proportioning；
(2) quick hardening sulphoaluminate cement, Portland cement, anhydrite, silicon ash, quartz sand, water reducer, boric acid, fiber are mixed
After closing uniformly, component A is obtained；
(3) lithium salts is prepared into after 10% aqueous solution, adds carboxylic styrene butadiene latex, lithium salts defoamer and be well mixed, obtain B groups
Point；
(4) the component A and the B component are pressed 1：After 1 mass ratio is well mixed, the grain of the quality such as addition and the component A
Footpath is 5 ~ 20mm rubble, be poured into after fully mixing and stirring in 20 minutes it is floating in the expansion joint of breakage, finally, health of sprinkling water
2 hours to open to traffic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610010582.0A CN105523745B (en) | 2016-01-08 | 2016-01-08 | A kind of bridge expanssion joint fast repairing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610010582.0A CN105523745B (en) | 2016-01-08 | 2016-01-08 | A kind of bridge expanssion joint fast repairing material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105523745A CN105523745A (en) | 2016-04-27 |
| CN105523745B true CN105523745B (en) | 2017-10-24 |
Family
ID=55766324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610010582.0A Active CN105523745B (en) | 2016-01-08 | 2016-01-08 | A kind of bridge expanssion joint fast repairing material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105523745B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106220104B (en) * | 2016-07-07 | 2018-10-12 | 甘肃路桥建设集团养护科技有限责任公司 | A kind of special shock resistance type polymer material for quickly repairing of bridge floor fast spreading |
| CN106542791A (en) * | 2016-10-31 | 2017-03-29 | 甘肃畅陇公路养护技术研究院有限公司 | Emulsion-type double-component interfacial agents |
| CN106747133B (en) * | 2016-11-28 | 2019-02-01 | 郑州筑邦建材有限公司 | A kind of severe cold area high-speed rail pedestal concrete low temperature patching material and its application |
| CN106587885B (en) * | 2016-12-12 | 2018-12-18 | 中国建筑材料科学研究总院 | Patching material and application for Existing Railway Bridges bridge surface waterproof layer protective layer |
| CN107216091A (en) * | 2017-06-12 | 2017-09-29 | 河南理工大学 | A kind of novel bridge expansion joint packing material |
| CN107555919B (en) * | 2017-08-23 | 2020-05-12 | 合肥卡勒斯通建筑材料有限公司 | Bridge grouting material and method for rapidly repairing bridge expansion joint by adopting same |
| CN108101474A (en) * | 2018-01-15 | 2018-06-01 | 北京首发公路养护工程有限公司 | Anti- isolation road rapid repair material of low temperature contracting Self-leveling and preparation method thereof |
| CN110386779A (en) * | 2018-04-23 | 2019-10-29 | 东宏建设股份有限公司 | A kind of bridge expanssion joint concrete |
| CN108892459A (en) * | 2018-09-12 | 2018-11-27 | 东南大学 | A kind of titanate-containing sulpho-aluminate cement base fast repairing material and preparation method thereof |
| CN109678437B (en) * | 2019-01-28 | 2021-07-27 | 甘肃省交通规划勘察设计院股份有限公司 | Bi-component low-viscosity type base layer crack rapid repairing material |
| CN111592307A (en) * | 2020-05-19 | 2020-08-28 | 山东交通职业学院 | High-strength reinforced repair mortar |
| CN111704421B (en) * | 2020-06-16 | 2022-06-10 | 中铁西南科学研究院有限公司 | Cement pavement thin layer repairing material and using method thereof |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51139821A (en) * | 1975-05-14 | 1976-12-02 | Sueddeutsche Kalkstickstoff | Rapid reinforcing binder |
| CN101157537A (en) * | 2007-08-02 | 2008-04-09 | 铁道科学研究院铁道建筑研究所 | Rapid-hardening self-leveling mortar material |
| CN101486545B (en) * | 2008-12-15 | 2012-01-11 | 江苏博特新材料有限公司 | Expansion controllable ultra high-early strength support saddle mortar material |
| CN101935201B (en) * | 2009-06-30 | 2012-09-05 | 中冶建筑研究总院有限公司 | Single-component high-performance mortar for repairing and reinforcing concrete |
| CN101698589A (en) * | 2009-11-06 | 2010-04-28 | 同济大学 | Novel patching material |
| CN101830684B (en) * | 2010-05-26 | 2013-01-09 | 江苏博特新材料有限公司 | Super early strength polymer rapid-patching motar material |
| CN102249636A (en) * | 2011-05-18 | 2011-11-23 | 江苏名和集团有限公司 | Cement-based shrinkage-free grouting mortar |
| CN102898107B (en) * | 2012-10-26 | 2014-12-03 | 苏州市姑苏新型建材有限公司 | Concrete healant |
| CN104016644A (en) * | 2014-05-30 | 2014-09-03 | 济南城建集团有限公司 | Cement-based super-early-strength high-performance repair agent |
| CN104496384A (en) * | 2014-11-28 | 2015-04-08 | 上海申继交通科技有限公司 | Super-rapid hardening cement concrete |
-
2016
- 2016-01-08 CN CN201610010582.0A patent/CN105523745B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105523745A (en) | 2016-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105523745B (en) | A kind of bridge expanssion joint fast repairing material | |
| CN107324738B (en) | A kind of Cement Concrete Pavement Reconstruction material and Cement Concrete Pavement Reconstruction method | |
| CN106587862B (en) | Ultra-fine type self-compaction mending mortar solidifying fastly and preparation method thereof | |
| CN109503103A (en) | A kind of superhigh tenacity alkali-activated carbonatite gunite concrete and preparation method thereof | |
| CN101786838A (en) | Early strength grouting material | |
| CN104926253A (en) | Pavement/bridge deck concrete fast mending material and application thereof | |
| CN103332909A (en) | High-ductility repair dry powder mortar and preparation method thereof | |
| CN101698590B (en) | Repairing material for concrete and preparation method thereof | |
| CN102211919A (en) | Acrylic ester emulsion modified cement base rapid repair mortar | |
| CN110344323A (en) | A kind of wet seam construction of super hardening high-performance and construction technology | |
| CN106587885B (en) | Patching material and application for Existing Railway Bridges bridge surface waterproof layer protective layer | |
| CN107572981A (en) | A kind of concrete repair self-compacting concrete and preparation method thereof | |
| CN103922695B (en) | Grout and mortar is repaired fast for high ferro ballastless track mortar layer | |
| CN106316291A (en) | Ballastless track bed concrete defect repairing material | |
| CN110451898A (en) | A kind of early strong repairing mortar of polymer | |
| CN105906289A (en) | Concrete repairing dry-mixed mortar and preparation method thereof | |
| CN110467394B (en) | Cement grouting material and preparation method and application thereof | |
| CN110981375A (en) | Shrinkage-compensating rapid repairing material for bridge expansion joint | |
| CN106542791A (en) | Emulsion-type double-component interfacial agents | |
| CN106186969A (en) | A kind of high flowability ultra early-strength grouting material | |
| CN105645886B (en) | A kind of II plate-type ballastless track boards plate seam material for quickly repairing of CRTS | |
| CN104692744A (en) | Road patching material with favorable elasticity and abrasion resistance and application thereof | |
| CN107555919B (en) | Bridge grouting material and method for rapidly repairing bridge expansion joint by adopting same | |
| CN106699037A (en) | Geopolymer grouting material | |
| CN103833289A (en) | Quick-setting anti-crack polymeric mortar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |