CN112195832A - Method for controlling appearance quality of new Jersey guardrail constructed by slip form paver - Google Patents
Method for controlling appearance quality of new Jersey guardrail constructed by slip form paver Download PDFInfo
- Publication number
- CN112195832A CN112195832A CN202010966148.6A CN202010966148A CN112195832A CN 112195832 A CN112195832 A CN 112195832A CN 202010966148 A CN202010966148 A CN 202010966148A CN 112195832 A CN112195832 A CN 112195832A
- Authority
- CN
- China
- Prior art keywords
- new jersey
- guardrail
- concrete
- jersey guardrail
- smearing
- 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
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/08—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks
- E01F15/081—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks characterised by the use of a specific material
- E01F15/083—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks characterised by the use of a specific material using concrete
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
- E01C19/4886—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ for forming in a continuous operation kerbs, gutters, berms, safety kerbs, median barriers or like structures in situ, e.g. by slip-forming, by extrusion
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention belongs to the field of highway engineering new jersey guardrail construction, and particularly relates to a new jersey guardrail appearance quality control method after construction of a slip form paver, which comprises the steps of flattening, rough smearing, fine smearing, side leaning, top leaning, self-made scraper treatment, final smearing and the like, wherein the method for controlling the new jersey guardrail appearance quality after construction of the slip form paver solves the quality defects of pits, rough surfaces, poor line shapes and the like on the surface of concrete after the new jersey guardrail is preliminarily formed, so that the final new jersey guardrail appearance achieves the effects of consistent size, distinct edges and corners, strong stereoscopic impression, attractive appearance and consistent color; the method provided by the invention is easy to operate, does not need to additionally increase excessive resources and has low cost.
Description
Technical Field
The invention belongs to the field of highway engineering new Jersey guardrail construction, and particularly relates to a method for controlling the appearance quality of a new Jersey guardrail constructed by a slip form paver.
Background
The prior art mainly falls into three categories: the method comprises the following steps of prefabricating and installing, formwork erecting and cast-in-place, and novel slip form paver construction, wherein the former two steps are traditional manual construction, and guardrail concrete can ensure appearance quality through secondary finishing, but the method is relatively low in efficiency and high in cost; the novel slip form paver is used for construction, the production efficiency is high, and the purpose of preliminary forming of the guardrail is achieved mainly by using the superior performance of the slip form paver and the proper concrete mixing proportion. In fact, although advanced equipment is adopted and the construction process is optimized, the surface of the guardrail produced by the slip form paver also has the appearance defects of pits, rough surfaces, poor line type and the like, which is inevitable. According to the data, no relevant process for treating the surface defects of the newly formed jersey guardrail is found. The invention provides a feasible construction process, and solves the problem, and the invention mainly aims at the apparent defects of pits, rough surfaces and the like frequently appearing on the surface of the guardrail produced by the slipform paver to carry out modification treatment, so as to achieve the appearance effects of smoothness, consistent color and linearity and smoothness.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a method for controlling the appearance quality of a new Jersey guardrail constructed by a slip form paver. The invention aims to solve the quality defects of pits, rough surfaces, poor line types and the like on the surface of concrete after the new jersey guardrail is initially molded, so that the guardrail concrete achieves the apparent effect of smooth surface and smooth line type and meets the requirements of owners.
In order to achieve the purpose, the invention adopts the following technical scheme: a method for controlling the appearance quality of a new Jersey guardrail constructed by a slip form paver comprises the following steps:
step 1: flattening and compacting: after the concrete is preliminarily molded through a template of a slip-form paver, small pits on the surface and small cracks on the top surface of the new jersey guardrail are flattened in the first time, and mortar or cement paste is adopted for filling and compacting;
step 2: coarse smearing: after pressing, roughly rolling the surface of the newly-formed Jersey guardrail, troweling by using rounded iron, and sprinkling a small amount of clear water before troweling to increase the smoothness;
and step 3: fine smearing: when the concrete surface of the new jersey guardrail is pressed by a thumb and can be sunk when being pressed by force, fine plastering is started, a fillet iron trowel is adopted, and a small amount of clear water is sprinkled before plastering, so that the smoothness is improved;
and 4, step 4: side leaning: after the fine smearing, straightening the side chamfer line by adopting a straight 2 m-long square wood with smooth surface and no concave-convex points;
and 5: propping: after the side leaning, the flatness of the top surface is corrected by adopting 5m long aluminum alloy square steel, and in the process, only pits and bumps on the top surface are filled and removed, wherein mortar or cement paste is used for filling;
step 6: self-made scraper treatment: the small self-made scraper is adopted to scrape the top surface of the new jersey guardrail longitudinally for 2-3 times generally, so as to achieve the effects of consistent size, clear edges and corners, strong stereoscopic impression and beautiful whole appearance;
and 7: and (3) final wiping: as a final step, it is mainly used to eliminate local "rest marks" and "scratches".
Preferably, in the step 2, the concrete of the guardrail which is just formed is roughly folded, the rough surface of the concrete is roughly smeared, occasionally, seam line marks which are caused by the stopping of a slip form machine due to the untimely supply of the concrete are smeared, the concrete is just formed and smeared for 3-4 times, the side surface of the guardrail is smeared in the vertical direction and the arc direction by using a handheld fillet iron trowel, and the horizontal operation is not carried out so as to prevent the concrete surface from being damaged; and (4) longitudinally plastering the top surface and the edges and corners of the guardrail for 2-3 times.
Preferably, in the step 3, the concrete surface is plastered again on the basis of rough plastering, so that the concrete surface is smooth and beautiful, a small amount of clear water is uniformly scattered on the concrete surface, and the operation mode of the trowel is consistent with that of the rough plastering until the concrete surface is smooth, and generally 4 to 7 times.
Preferably, in the step 4, the two hands hold the square timber tightly against the side face of the lower opening of the chamfer at the top of the guardrail, a 2kg small hammer is used for knocking the outer side of the square timber at small force and close intervals, so that the chamfer lines within the length range of the square timber are a straight line, and then surface finishing is carried out for 1-2 times.
Compared with the prior art, the invention has the beneficial effects that: the method for controlling the appearance quality of the new Jersey guardrail constructed by the slip form paver solves the quality defects of pits, rough surfaces, poor line types and the like on the surface of concrete after the new Jersey guardrail is initially molded, so that the final appearance of the new Jersey guardrail achieves the effects of consistent size, clear edges and corners, strong stereoscopic impression, attractive appearance and consistent color;
the method provided by the invention is easy to operate, does not need to additionally increase excessive resources and has low cost.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.
FIG. 1 is a cross-sectional view of a new Jersey fence according to the present invention;
FIG. 2 is a cross-sectional view of the self-made doctor blade of the present invention;
FIG. 3 is a plan view of the homemade scraper of the present invention;
FIG. 4 illustrates the square lumber correction side chamfer position of the present invention;
in the figures, the names corresponding to the reference numbers are a New Jersey guardrail 1, a self-made scraper 2, a first scraper surface 21, a second scraper surface 22, a third scraper surface 23, a fourth scraper surface 24, a fifth scraper surface 25, a scraper handle 26 and a square timber 3.
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are provided only for illustrating the present invention and are not intended to limit the scope of the present invention.
The following is a description of a specific construction process in the pakistan M5 highway engineering.
The new jersey guardrail of the engineering is constructed by adopting a high-performance multifunctional cement slip form paver, and the adopted concrete has the strength of A1(3000psi, about 20Mpa) and is high-plasticity low-slump concrete.
Please refer to fig. 1-4, which shows a method for controlling the appearance quality of a new jersey guardrail constructed by a slipform paver, comprising the following steps:
step 1: flattening and compacting: after the concrete is preliminarily molded through a template of a slip form paver, small pits and small cracks on the top surface of the new jersey guardrail 1 are flattened in the first time, and mortar or cement paste is adopted for filling and compacting;
step 2: coarse smearing: after pressing, roughly rolling the surface of the newly-formed Jersey guardrail 1, troweling by using a fillet iron trowel, and sprinkling a small amount of clear water before troweling to increase the smoothness; specifically, the method mainly comprises the steps of roughly folding the guardrail concrete of the newly-formed new jersey guardrail 1, roughly smearing the rough concrete surface, occasionally smearing seam line marks caused by the pause of a slip form machine due to untimely concrete supply for 3-4 times due to the fact that the concrete is just formed, smearing the side surface in the vertical direction and the arc direction by using a handheld fillet iron trowel, and cutting without horizontal operation so as to avoid damaging the concrete surface; and (4) longitudinally plastering the top surface and the edges and corners of the guardrail for 2-3 times.
And step 3: fine smearing: when the concrete surface of the new jersey guardrail 1 is pressed by a thumb and can be sunk when being pressed by force, fine plastering is started, a fillet iron trowel is adopted, and a small amount of clear water is sprinkled before plastering, so that the smoothness is improved; specifically, the concrete surface is plastered again on the basis of rough plastering, so that the concrete surface is smooth and attractive, when the concrete surface of the guardrail is pressed by a thumb and can be sunk when being pressed by force, the concrete surface is finely plastered, a fillet iron trowel is adopted, a small amount of clear water is sprinkled before plastering, the smoothness is increased, the side surface is plastered in the vertical direction and the circular arc direction by using a handheld fillet iron trowel, and the horizontal operation is not required to be carried out so as to avoid damaging the concrete surface, which is generally carried out for 4-7 times; and (4) longitudinally plastering the top surface and the edges and corners of the guardrail for 2-3 times. In the step 3, the concrete surface is plastered again on the basis of rough plastering, so that the concrete surface is smooth and attractive, a small amount of clear water is uniformly scattered on the concrete surface, and the operation mode of the trowel is consistent with that of the rough plastering until the concrete surface is smooth, generally 4-7 times.
According to case engineering actual statistics, the time difference from coarse smearing to fine smearing is related to the temperature of the operation environment, and when the construction temperature is 30-35 degrees, the interval time is 15-20 min; the time interval is 10-15 min when the temperature is 35-40 ℃.
And 4, step 4: side leaning: after the fine smearing, straightening the side chamfer line by adopting a 2m long square wood 3 with smooth surface and no concave-convex points; specifically, the square timber 3 held by two hands is abutted against the side face of the lower opening of the top chamfer of the guardrail (as shown in the position of figure 4), the square timber 3 is placed at the position of the chamfer of the correction side face, a 2kg small hammer is used for knocking the outer side of the square timber at small force and dense intervals, the chamfer line within the length range of the square timber is a straight line, and then surface finishing is carried out for 1-2 times.
And 5: propping: after the side leaning, the flatness of the top surface is corrected by adopting 5m long aluminum alloy square steel, and in the process, only pits and bumps on the top surface are filled or removed, wherein mortar or cement paste is used for filling;
step 6: self-made scraper treatment: the small self-made scraper 2 is adopted to be scraped off longitudinally along the top surface of the new jersey guardrail 1 (as shown in figures 2 and 3), and the scraping operation is generally carried out for 2-3 times, so that the effects of consistent size, clear edges and corners, strong stereoscopic impression and integral attractiveness are achieved; the homemade scraper 2 comprises a first scraper face 21, a second scraper face 22, a third scraper face 23, a fourth scraper face 24, a fifth scraper face 25 and a scraper handle 26, wherein the first scraper face 21, the second scraper face 22, the third scraper face 23, the fourth scraper face 24 and the fifth scraper face 25 are distributed in a reverse U shape, the first scraper face 21, the second scraper face 22, the third scraper face 23, the fourth scraper face 24 and the fifth scraper face 25 are arranged in the longitudinal extension direction towards the New Jersey guardrail 1, the first scraper face 21 and the fifth scraper face 25 are both obliquely arranged plate-shaped structures, the first scraper face 21 and the fifth scraper face 25 are arranged in an eight shape, one side of the first scraper face 21 is connected with one side of the second scraper face 22, the second scraper face 22 is obliquely arranged plate-shaped structure, the other side of the second scraper face 22 is connected with one side of the third scraper face 23, the third scraper face 23 is horizontally arranged plate-shaped structure, the other side of the third scraper face 23 is connected with one side of the fourth scraper face 24, the fourth scraper face 24 is of an inclined plate-shaped structure, the other side of the fourth scraper face 24 is connected with one side of the fifth scraper face 25, and a scraper handle 26 is fixedly arranged on the upper portions of the first scraper face 21 and the fifth scraper face 25.
And 7: and (3) final wiping: as a final step, it is mainly used to eliminate local "rest marks" and "scratches".
According to the actual operation of case engineering, the above-mentioned 7 steps are mutually combined and used, and are not simple from the sequential relation of steps 1-7, and all the steps are mutually combined and operated, and can be generally undergone the processes of three cycles to implement surface-receiving treatment so as to obtain the effects of uniform size, clear edge angle, strong stereoscopic impression and beautiful appearance.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (4)
1. The method for controlling the appearance quality of the new Jersey guardrail constructed by the sliding-mode paver is characterized by comprising the following steps of:
step 1: flattening and compacting: after the concrete is preliminarily molded through a template of a slip-form paver, small pits on the surface and small cracks on the top surface of the new jersey guardrail are flattened in the first time, and mortar or cement paste is adopted for filling and compacting;
step 2: coarse smearing: after pressing, roughly rolling the surface of the newly-formed Jersey guardrail, troweling by using rounded iron, and sprinkling a small amount of clear water before troweling to increase the smoothness;
and step 3: fine smearing: when the concrete surface of the new jersey guardrail is pressed by a thumb and can be sunk when being pressed by force, fine plastering is started, a fillet iron trowel is adopted, and a small amount of clear water is sprinkled before plastering, so that the smoothness is improved;
and 4, step 4: side leaning: after the fine smearing, straightening the side chamfer line by adopting a straight 2 m-long square wood with smooth surface and no concave-convex points;
and 5: propping: after the side leaning, the flatness of the top surface is corrected by adopting 5m long aluminum alloy square steel, and in the process, only pits and bumps on the top surface are filled or removed, wherein mortar or cement paste is used for filling;
step 6: self-made scraper treatment: the small self-made scraper is adopted to scrape the top surface of the new jersey guardrail longitudinally for 2-3 times generally, so as to achieve the effects of consistent size, clear edges and corners, strong stereoscopic impression and beautiful whole appearance;
and 7: and (3) final wiping: as a final step, it is mainly used to eliminate local "rest marks" and "scratches".
2. The method for controlling the appearance quality of the new jersey guardrail after the construction of the slipform paver according to claim 1, characterized in that in the step 2, the concrete of the guardrail which is just formed is roughly folded, the rough smearing is carried out on the rough concrete surface, occasionally, the seam line trace which appears due to the stopping of the slipform machine caused by the untimely supply of the concrete is smeared for 3-4 times because the concrete is just formed, the side surface is smeared in the vertical direction and the arc direction by using a handheld fillet iron trowel, and the horizontal operation is not carried out so as to prevent the concrete surface from being damaged; and (4) longitudinally plastering the top surface and the edges and corners of the guardrail for 2-3 times.
3. The method for controlling the appearance quality of the new jersey guardrail constructed by the slipform paver of claim 2, wherein in the step 3, the concrete surface is plastered again on the basis of rough plastering to make the concrete surface smooth and beautiful, a small amount of clear water is uniformly scattered on the concrete surface, and the operation mode of the trowel is consistent with that of the rough plastering until the concrete surface is smooth, and the operation is generally carried out for 4-7 times.
4. The method for controlling the appearance quality of the new jersey guardrail constructed by the slipform paver of claim 3, wherein in the step 4, specifically, the square timber held by two hands is abutted against the side surface of the lower opening of the chamfer at the top of the guardrail, the outer side of the square timber is knocked by a small hammer of 2kg at small force and close intervals, the chamfer line within the length range of the square timber is a straight line, and then the surface is subjected to surface finishing for 1-2 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010966148.6A CN112195832A (en) | 2020-09-15 | 2020-09-15 | Method for controlling appearance quality of new Jersey guardrail constructed by slip form paver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010966148.6A CN112195832A (en) | 2020-09-15 | 2020-09-15 | Method for controlling appearance quality of new Jersey guardrail constructed by slip form paver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112195832A true CN112195832A (en) | 2021-01-08 |
Family
ID=74014937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010966148.6A Pending CN112195832A (en) | 2020-09-15 | 2020-09-15 | Method for controlling appearance quality of new Jersey guardrail constructed by slip form paver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112195832A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113430975A (en) * | 2021-07-12 | 2021-09-24 | 包头市公路工程股份有限公司 | Self-compacting concrete wall type guardrail slip form construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631270A (en) * | 2015-01-15 | 2015-05-20 | 杭州比亚姆新型建材有限公司 | Construction technology for dyeing, polishing and hardening concrete floor |
| CN108797972A (en) * | 2017-04-27 | 2018-11-13 | 应鸽龙 | Metope external corner Automatic-feeding is scraped to smear and receives Guang and make Mo devices |
| CN108952080A (en) * | 2018-08-29 | 2018-12-07 | 启东建筑集团有限公司 | Concrete dense curing agent abrasion-proof terrace monolithic construction method |
| US20190309534A1 (en) * | 2018-04-09 | 2019-10-10 | Howard Cooper | Slip forming structures using multiple molds |
| CN110788959A (en) * | 2019-10-29 | 2020-02-14 | 上海贝恒人居建设集团南通有限公司 | Manufacturing process of PC (polycarbonate) component |
-
2020
- 2020-09-15 CN CN202010966148.6A patent/CN112195832A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631270A (en) * | 2015-01-15 | 2015-05-20 | 杭州比亚姆新型建材有限公司 | Construction technology for dyeing, polishing and hardening concrete floor |
| CN108797972A (en) * | 2017-04-27 | 2018-11-13 | 应鸽龙 | Metope external corner Automatic-feeding is scraped to smear and receives Guang and make Mo devices |
| US20190309534A1 (en) * | 2018-04-09 | 2019-10-10 | Howard Cooper | Slip forming structures using multiple molds |
| CN108952080A (en) * | 2018-08-29 | 2018-12-07 | 启东建筑集团有限公司 | Concrete dense curing agent abrasion-proof terrace monolithic construction method |
| CN110788959A (en) * | 2019-10-29 | 2020-02-14 | 上海贝恒人居建设集团南通有限公司 | Manufacturing process of PC (polycarbonate) component |
Non-Patent Citations (2)
| Title |
|---|
| 吕志峰等: ""巴基斯坦新泽西护栏滑模施工工法分析"", 《工程质量》 * |
| 董杰等: ""新泽西"式混凝土防撞护栏滑模摊铺机施工", 《河南建材》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113430975A (en) * | 2021-07-12 | 2021-09-24 | 包头市公路工程股份有限公司 | Self-compacting concrete wall type guardrail slip form construction method |
| CN113430975B (en) * | 2021-07-12 | 2022-09-09 | 包头市公路工程股份有限公司 | Self-compacting concrete wall type guardrail slip form construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102644362B (en) | Architectural decoration plastering construction method | |
| CN104746772B (en) | Ash concrete hollow partition board anti-cracking construction method | |
| CN112064955A (en) | Paving construction method applied to floor tiles | |
| CN203383409U (en) | Caulking construction structure for surface layer dividing joints of building roof | |
| CN1232702C (en) | Concrete colour embossing ground floor technology | |
| CN108468413A (en) | A kind of air-entrained concrete building block exempts from anti-hollowing construction method of plastering | |
| CN112195832A (en) | Method for controlling appearance quality of new Jersey guardrail constructed by slip form paver | |
| CN103306383A (en) | Infiltration prevention method for bolt hole in outer wall of reinforced concrete shear wall | |
| CN104120860A (en) | Construction method for cement mortar ground leveling | |
| CN110735493B (en) | Anti-leakage composite waterproof method for flat roof | |
| CN110206278A (en) | A kind of quick leveling method of wall plastering | |
| CN203834826U (en) | Novel staircase water drip tank | |
| CN106639247A (en) | Construction technique for paving ceramic floor tiles | |
| CN207513190U (en) | A kind of wall pouring can | |
| CN109537822A (en) | Gutter construction technology | |
| CN109779172A (en) | A kind of laser floating screed brushing gypsum plastering construction method | |
| CN211949245U (en) | Roof stone flashing structure | |
| CN205025042U (en) | Big unit pottery sheet metal back of body kiss -coating bonds and constructs | |
| CN207144402U (en) | A kind of tile laying aid | |
| CN202509637U (en) | Cantilever type cover plate deformation joint structure of roofing for people to climb | |
| CN217975251U (en) | Reinforcing steel bar protection layer treatment smearing device | |
| CN206205321U (en) | A kind of building internal corner structure | |
| CN111794551B (en) | Strong-vibration ramp masonry wall crack prevention and treatment method | |
| CN213927582U (en) | Auxiliary tool for laying mortar bonding layer of brick wall | |
| CN217379579U (en) | Wall structure based on external thermal insulation external wall theme sculpture is plastered |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210108 |