CN102493493A - Method for plugging horizontal fissures of basement concrete structure by grouting microorganisms - Google Patents
Method for plugging horizontal fissures of basement concrete structure by grouting microorganisms Download PDFInfo
- Publication number
- CN102493493A CN102493493A CN2011104121622A CN201110412162A CN102493493A CN 102493493 A CN102493493 A CN 102493493A CN 2011104121622 A CN2011104121622 A CN 2011104121622A CN 201110412162 A CN201110412162 A CN 201110412162A CN 102493493 A CN102493493 A CN 102493493A
- Authority
- CN
- China
- Prior art keywords
- crack
- liquid
- bacterium liquid
- salt solution
- perfusion
- 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
Images
Landscapes
- Materials For Medical Uses (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
The invention discloses a method for plugging horizontal fissures of a basement concrete structure by grouting microorganisms. The method comprises the following steps of: excavating filled earth, pouring water, constructing a cement mortar grouting trough, preparing bacteria liquid and a nutritive salt solution, pouring the bacteria liquid, and pouring the nutritive salt solution. In the processes of pouring the bacteria liquid, and the nutritive salt solution, poured liquid are allowed to flow out of the inner sides of the fissures, but the flowing amount is gradually reduced along with the increasing of the pouring frequency, and finally the poured liquid stops flowing completely; and if the width of the fissures is more than 0.5mm, in order to prevent most of the bacteria liquid and the nutritive salt solution from flowing out, the inner sides of the fissures are plugged by using absorbent cotton and gauze, and then the liquid and solution are grouted. Calcium chloride is introduced by the bacteria liquid to generate calcium carbonate sediments which can effectively fill and plug the fissures and pouring holes.
Description
Technical field
The present invention relates to the shutoff and the restorative procedure of distress in concrete in a kind of civil engineering, especially a kind of method of microorganism grout sealing Basement Concrete Structures transverse crack.
Background technology
According in recent years national basement in high rise building investigation being found that the cracking quantity of basement in high rise building exterior wall accounts for by about 85% of investigation engineering sum, the phenomenon that the crack appears in base plate accounts for by about 10% of investigation sum.Simultaneously analysis of survey results is found that in the various negative consequences that caused by the crack, seepage accounts for 60%.Therefore, the Crack Control problem of concrete structure just becomes one of important research project in the construction work.Particularly over the past two decades, after the pumping commercial concrete obtained extensive use, the problem that the crack produces was outstanding day by day.
The blocking method of existing basement has a lot, but effect is all undesirable.Reason has two aspects: after (1) basement built up, wall outside backfill was difficult in exterior wall and repairs; (2) mostly existing patching material is the material of organic or hydrophobic, and problem of aging is arranged, and the coefficient of expansion and concrete are inconsistent.Therefore, leakage problems becomes old, big, the difficult problem of puzzlement engineering circle.Repairing method of microorganism is a kind of method of novel repairing concrete crack, and product is consistent with former concrete, should not ftracture after the reparation.Grouting agent is liquid, is easy to infiltrate in the seam, in seam, forms deposition.The durability and the intensity of the concrete material after the reparation all are greatly increased, and good with the associativity of concrete material.
Utilizing microorganism diagenesis recovery technique is a kind of international advanced technology of subject crossing.Its mechanism is to utilize microorganism induction to generate mineral deposition to fill up and the rehabilitating concrete defective: some basophilous edaphon utilizes the urease that self produces that hydrolysis of urea is ammonia and carbon dioxide; The increase of decomposing the ammonia quantity that generates can cause the rising of pH value on every side, thereby causes the deposition of calcium carbonate.In inducing the process of tosca, action of microorganisms is not only the generation urease, but also for the deposition of calcium carbonate the place of nucleation is provided.In civil engineering, the microorganism recovery technique mainly is to utilize cultured microorganism to induce tosca rehabilitating concrete defective, and shutoff and ground processing etc. are carried out in the crack at present.The application of the Cheng Xiao of Tsing-Hua University brightness patent " a kind of microorganism cause cement or concrete and production method and application " (CN200810105947.3); Propose to utilize Pasteur bacillus bacterium liquid that can produce urase and the fluid,matching that contains urea and mineral calcium salt to mix; Reaction under certain condition get final product microorganism cause cement or concrete method, but do not provide especially the method that specifically mends a split about basement.
One Chinese patent application 200810019165.8 discloses a kind of microorganism reparation cement-based material crack method and nutrient solution and reparation nutrient solution of utilizing.It adopts microbial inoculum and reparation nutrient solution is injected cement stony fracture seam, carries out maintenance.But this method and useless relating to bacterium liquid and concrete grammar, the step of repairing in the nutrient solution injection crack.
Summary of the invention
The objective of the invention is for overcoming the deficiency of above-mentioned prior art, a kind of method of microorganism grout sealing Basement Concrete Structures transverse crack is provided, this method is easy to operate, and crack closure is effective, is easy to construction.
For realizing above-mentioned purpose, the present invention adopts following technical proposals:
A kind of method of microorganism grout sealing Basement Concrete Structures transverse crack, step is following:
(1) excavation that bankets
Excavation basement wall external is banketed, and exposes lateral slot;
(2) pour water
The clear and definite percolation path of pouring water is removed corresponding site body of wall surface layer in the basement clean simultaneously;
(3) construction cement mortar grout groove
A del grout groove is done with cement mortar in the crack outside, prevents that the infiltration of bacterium liquid and nutritive salt from banketing;
(4) bacterium liquid and nutrient salt solution preparation
Prepare 3-5 with fermentation tank and rise the Pasteur bacillus, enzymatic activity OD600 is greater than 1; Preparation contains the calcium chloride of 1mol/L and the nutrient salt solution of 1mol/L urea;
(5) perfusion bacterium liquid
In the crack, pour into bacterium liquid from grout groove, in seam, fill, liquid level exceeds crack 3-5mm;
(6) perfusion nutrient salt solution
Wait for that bacterium liquid liquid level descends, the bacterium liquid more than 80% injects the calcium chloride that contains 1mol/L of twice bacteria liquid amount and the nutrient salt solution of 1mol/L urea respectively after infiltrating the crack in grout groove.
(7) continued perfusion bacterium liquid in follow-up 4 days
Pour into one time bacterium liquid follow-up 4 day every day, method for filling is with (5) step;
(8) continued the perfusion nutrient salt solution in follow-up 9 days
Pour into the one time of nutrition salting liquid follow-up 9 day every day, method for filling is with (6) step, and the tosca thing that bacterium liquid induces calcium chloride to generate can be filled crack and fill orifice and shutoff effectively.
Said step (5) in the process of bacterium liquid and nutritive salt perfusion, allows that the liquid of perfusion flows out in the inboard in crack to step (8), but the amount that flows out can progressively reduce along with the increase of perfusion number of times, stops fully at last; If the width in crack is greater than 0.5mm, for preventing big outflow of bacterium liquid and nutritive salt, capable again being in the milk after the inboard in crack is with absorbent cotton and gauze shutoff.
The invention has the beneficial effects as follows that this method is easy to operate, crack closure is effective, is easy to construction, can primary fissure be sewed with the effect shutoff.Check behind water injection test and rain seepage do not occur with the crack of this method shutoff.
Description of drawings
Fig. 1 is the present invention's sketch map when implementing;
Fig. 2-Fig. 6 is the photo of field trial; Wherein Fig. 2 is that grout groove is made photo; Fig. 3 is the water injection test photo; Fig. 4 is water injection test (body of wall is spread and sunk in a wet) photo before the leak stopping; Fig. 5 is water injection test after the leak stopping (leakproof) photo; Fig. 6 contrasts photo behind leak stopping place (left side) and not leak stopping place (right side) rain;
Wherein 1. basement wall external are banketed, 2. grout groove, 3. bacterium liquid and nutritive salt, 4. lateral slot, 5. concrete exterior wall, 6. absorbent cotton and gauze.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Like Fig. 1-shown in Figure 6, the method for microorganism grout sealing Basement Concrete Structures transverse crack, step is following:
(1) excavation that bankets
Excavation basement wall external bankets 1, exposes lateral slot 4;
(2) pour water
The clear and definite percolation path of pouring water is removed corresponding site body of wall surface layer in the basement clean simultaneously;
(3) construction cement mortar grout groove
A del grout groove 2 is done with cement mortar in the crack outside, in preventing bacterium liquid 2 infiltrations being banketed with nutritive salt;
(4) bacterium liquid and nutrient salt solution preparation
Prepare 3-5 with fermentation tank and rise the Pasteur bacillus, enzymatic activity OD600 is greater than 1; Preparation contains the calcium chloride of 1mol/L and the nutrient salt solution of 1mol/L urea;
(5) perfusion bacterium liquid
In the crack, pour into bacterium liquid from grout groove 2, in seam, fill, liquid level exceeds crack 3-5mm;
(6) perfusion nutrient salt solution
Wait for that bacterium liquid liquid level descends, the bacterium liquid more than 80% injects the calcium chloride that contains 1mol/L of twice bacteria liquid amount and the nutrient salt solution of 1mol/L urea respectively after infiltrating the crack in grout groove 2.
(7) continued perfusion bacterium liquid in follow-up 4 days
Pour into one time bacterium liquid follow-up 4 day every day, method for filling is with (5) step;
(8) continued the perfusion nutrient salt solution in follow-up 9 days
Pour into the one time of nutrition salting liquid follow-up 9 day every day, method for filling is with (6) step, and the tosca thing that bacterium liquid induces calcium chloride to generate can be filled crack and fill orifice and shutoff effectively.
Said step (5) in the process of bacterium liquid and nutritive salt 3 perfusions, allows that the liquid of perfusion flows out in the inboard in crack to step (8), but the amount that flows out can progressively reduce along with the increase of perfusion number of times, stops fully at last; If the width in crack greater than 0.5mm, flows out for preventing bacterium liquid and nutritive salt 3 big portions, capable again being in the milk after the inboard in crack is with absorbent cotton and gauze 6 shutoff.
Though the above-mentioned accompanying drawing specific embodiments of the invention that combines is described; But be not restriction to protection domain of the present invention; One of ordinary skill in the art should be understood that; On the basis of technical scheme of the present invention, those skilled in the art need not pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (2)
1. the method for a microorganism grout sealing Basement Concrete Structures transverse crack is characterized in that step is following:
(1) excavation that bankets
Excavation basement wall external is banketed, and exposes lateral slot;
(2) pour water
The clear and definite percolation path of pouring water is removed corresponding site body of wall surface layer in the basement clean simultaneously;
(3) construction cement mortar grout groove
A del grout groove is done with cement mortar in the crack outside, prevents that the infiltration of bacterium liquid and nutritive salt from banketing;
(4) bacterium liquid and nutrient salt solution preparation
Prepare 3-5 with fermentation tank and rise the Pasteur bacillus, enzymatic activity OD600 is greater than 1; Preparation contains the calcium chloride of 1mol/L and the nutrient salt solution of 1mol/L urea;
(5) perfusion bacterium liquid
In the crack, pour into bacterium liquid from grout groove, in seam, fill, liquid level exceeds crack 3-5mm;
(6) perfusion nutrient salt solution
Wait for that bacterium liquid liquid level descends, the bacterium liquid more than 80% injects the calcium chloride that contains 1mol/L of twice bacteria liquid amount and the nutrient salt solution of 1mol/L urea respectively after infiltrating the crack in grout groove.
(7) continued perfusion bacterium liquid in follow-up 4 days
Pour into one time bacterium liquid follow-up 4 day every day, method for filling is with (5) step;
(8) continued the perfusion nutrient salt solution in follow-up 9 days
Pour into the one time of nutrition salting liquid follow-up 9 day every day, method for filling is with (6) step; The tosca thing that bacterium liquid induces calcium chloride to generate can be filled crack and fill orifice and shutoff effectively.
2. the method for claim 1 is characterized in that, said step (5) is to step (8); In the process of bacterium liquid and nutritive salt perfusion; The liquid of allowing perfusion flows out in the inboard in crack, but the amount that flows out can progressively reduce along with the increase of perfusion number of times, stops fully at last; If the width in crack is greater than 0.5mm, for preventing big outflow of bacterium liquid and nutritive salt, capable again being in the milk after the inboard in crack is with absorbent cotton and gauze shutoff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110412162 CN102493493B (en) | 2011-12-12 | 2011-12-12 | Method for plugging horizontal fissures of basement concrete structure by grouting microorganisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110412162 CN102493493B (en) | 2011-12-12 | 2011-12-12 | Method for plugging horizontal fissures of basement concrete structure by grouting microorganisms |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102493493A true CN102493493A (en) | 2012-06-13 |
| CN102493493B CN102493493B (en) | 2013-08-28 |
Family
ID=46185349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110412162 Active CN102493493B (en) | 2011-12-12 | 2011-12-12 | Method for plugging horizontal fissures of basement concrete structure by grouting microorganisms |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102493493B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103043937A (en) * | 2012-12-27 | 2013-04-17 | 同济大学 | Compound capsule underground structure concrete self-repairing system provided with aerobic microorganisms inside |
| CN104196131A (en) * | 2014-09-11 | 2014-12-10 | 山东建筑大学 | Method for plugging cast-in-situ concrete slab or base-plate crack with microbe-sedimented calcium carbonate |
| CN104818719A (en) * | 2015-03-16 | 2015-08-05 | 山东建筑大学 | Microorganism grouting method capable of improving early-stage calcium carbonate deposit volume |
| CN105484298A (en) * | 2016-01-08 | 2016-04-13 | 三峡大学 | Microorganism reinforced grouting maintenance test device |
| CN105911260A (en) * | 2016-06-15 | 2016-08-31 | 天津大学 | Testing device for repairing concrete cracks through microorganisms |
| CN106835878A (en) * | 2017-01-24 | 2017-06-13 | 华中科技大学 | A kind of embankment structure and construction method |
| CN109184255A (en) * | 2018-10-31 | 2019-01-11 | 山东建筑大学 | A method of utilizing microorganism grout sealing outer wall of basement crack |
| CN109459364A (en) * | 2018-10-30 | 2019-03-12 | 河海大学 | A kind of experimental rig and method for reinforcing calcareous coarse-grained soil based on MICP |
| CN110863517A (en) * | 2019-12-12 | 2020-03-06 | 昆明理工大学 | Method for sealing and blocking leakage of storage yard by utilizing microbial induction |
| CN112142409A (en) * | 2020-09-27 | 2020-12-29 | 长安大学 | Microbial self-healing waterproof anti-permeability mortar and preparation method thereof |
| CN112573941A (en) * | 2020-12-31 | 2021-03-30 | 武汉工程大学 | Method for repairing early cracks of cement stabilized macadam pavement base |
| CN113307656A (en) * | 2021-05-29 | 2021-08-27 | 兰州理工大学 | Method for repairing concrete cracks by using microorganisms |
| CN113685058A (en) * | 2021-09-14 | 2021-11-23 | 山东建筑大学 | Method for replacing low-strength mortar of wall by utilizing microbial grouting |
| CN114607167A (en) * | 2022-03-15 | 2022-06-10 | 中国水利水电科学研究院 | Crack repairing method and device combining microbial cement and chemical grouting technology |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004123437A (en) * | 2002-10-01 | 2004-04-22 | Fujikura Ltd | Material and method of repairing concrete crack |
| CN1778934A (en) * | 2005-10-10 | 2006-05-31 | 东南大学 | Preparation of calcium carbonate by microbe deposition |
| CN101270369A (en) * | 2008-05-06 | 2008-09-24 | 清华大学 | Microorganism cause concrete or concrete, producing method and application thereof |
| CN101302484A (en) * | 2008-01-15 | 2008-11-12 | 东南大学 | Method for recovering cement-based material crack by means of microorganism, culture fluid and repair nutrient fluid |
| CN201169924Y (en) * | 2008-03-18 | 2008-12-24 | 启东建筑集团有限公司 | Basement concrete wall slit mending body |
| CN101851968A (en) * | 2009-03-30 | 2010-10-06 | 殷保卫 | Construction method for preventing outer wall of basement from cracking |
-
2011
- 2011-12-12 CN CN 201110412162 patent/CN102493493B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004123437A (en) * | 2002-10-01 | 2004-04-22 | Fujikura Ltd | Material and method of repairing concrete crack |
| CN1778934A (en) * | 2005-10-10 | 2006-05-31 | 东南大学 | Preparation of calcium carbonate by microbe deposition |
| CN101302484A (en) * | 2008-01-15 | 2008-11-12 | 东南大学 | Method for recovering cement-based material crack by means of microorganism, culture fluid and repair nutrient fluid |
| CN201169924Y (en) * | 2008-03-18 | 2008-12-24 | 启东建筑集团有限公司 | Basement concrete wall slit mending body |
| CN101270369A (en) * | 2008-05-06 | 2008-09-24 | 清华大学 | Microorganism cause concrete or concrete, producing method and application thereof |
| CN101851968A (en) * | 2009-03-30 | 2010-10-06 | 殷保卫 | Construction method for preventing outer wall of basement from cracking |
Non-Patent Citations (5)
| Title |
|---|
| 《山西建筑》 20050731 梁全虎 混凝土结构裂缝修复的方法--壁可注入法 第39-40页 1-2 , 第13期 * |
| 梁全虎: "混凝土结构裂缝修复的方法——壁可注入法", 《山西建筑》, no. 13, 31 July 2005 (2005-07-31), pages 39 - 40 * |
| 王瑞兴: "微生物沉积碳酸钙修复水泥基材料表面缺陷", 《硅酸盐学报》, no. 4, 30 April 2008 (2008-04-30), pages 457 - 464 * |
| 袁雄洲: "水泥基材料裂缝微生物修复技术的研究与进展", 《硅酸盐学报》, no. 01, 31 January 2009 (2009-01-31), pages 160 - 170 * |
| 黄伟明: "钢筋混凝土结构裂缝的修补方法", 《上海建设科技》, no. 4, 31 August 2009 (2009-08-31), pages 45 - 47 * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103043937A (en) * | 2012-12-27 | 2013-04-17 | 同济大学 | Compound capsule underground structure concrete self-repairing system provided with aerobic microorganisms inside |
| CN104196131A (en) * | 2014-09-11 | 2014-12-10 | 山东建筑大学 | Method for plugging cast-in-situ concrete slab or base-plate crack with microbe-sedimented calcium carbonate |
| CN104818719A (en) * | 2015-03-16 | 2015-08-05 | 山东建筑大学 | Microorganism grouting method capable of improving early-stage calcium carbonate deposit volume |
| CN105484298A (en) * | 2016-01-08 | 2016-04-13 | 三峡大学 | Microorganism reinforced grouting maintenance test device |
| CN105911260A (en) * | 2016-06-15 | 2016-08-31 | 天津大学 | Testing device for repairing concrete cracks through microorganisms |
| CN105911260B (en) * | 2016-06-15 | 2018-01-12 | 天津大学 | A kind of experimental rig of microorganism remediation distress in concrete |
| CN106835878A (en) * | 2017-01-24 | 2017-06-13 | 华中科技大学 | A kind of embankment structure and construction method |
| CN109459364A (en) * | 2018-10-30 | 2019-03-12 | 河海大学 | A kind of experimental rig and method for reinforcing calcareous coarse-grained soil based on MICP |
| CN109459364B (en) * | 2018-10-30 | 2021-04-09 | 河海大学 | Test device and method for reinforcing calcareous coarse-grained soil based on MICP |
| CN109184255A (en) * | 2018-10-31 | 2019-01-11 | 山东建筑大学 | A method of utilizing microorganism grout sealing outer wall of basement crack |
| CN110863517A (en) * | 2019-12-12 | 2020-03-06 | 昆明理工大学 | Method for sealing and blocking leakage of storage yard by utilizing microbial induction |
| CN112142409A (en) * | 2020-09-27 | 2020-12-29 | 长安大学 | Microbial self-healing waterproof anti-permeability mortar and preparation method thereof |
| CN112573941A (en) * | 2020-12-31 | 2021-03-30 | 武汉工程大学 | Method for repairing early cracks of cement stabilized macadam pavement base |
| CN113307656A (en) * | 2021-05-29 | 2021-08-27 | 兰州理工大学 | Method for repairing concrete cracks by using microorganisms |
| CN113685058A (en) * | 2021-09-14 | 2021-11-23 | 山东建筑大学 | Method for replacing low-strength mortar of wall by utilizing microbial grouting |
| CN114607167A (en) * | 2022-03-15 | 2022-06-10 | 中国水利水电科学研究院 | Crack repairing method and device combining microbial cement and chemical grouting technology |
| CN114607167B (en) * | 2022-03-15 | 2023-09-08 | 中国水利水电科学研究院 | Crack repairing method and device by combining microorganism cement and chemical grouting technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102493493B (en) | 2013-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102493493B (en) | Method for plugging horizontal fissures of basement concrete structure by grouting microorganisms | |
| CN102493494B (en) | Method for sealing vertical cracks of basement concrete structures by using microbial grouting | |
| CN104196131B (en) | The cast-in-place slab-type apartment building plate of microbiological precipitation of CaCO 3 blocking concrete or soleplate crack method | |
| AU2020102841A4 (en) | A soil improvement methods for saline-alkaline land | |
| CN109838113B (en) | Method for plugging cracks of basement roof and outer wall by utilizing microbial grouting | |
| CN105507232A (en) | Microorganism slab grouting device and method used for reinforcing liquefiable foundation | |
| CN102913250B (en) | Shield tunnel-entering construction method at stratum rich in water powder and soil powder sand | |
| CN101545251B (en) | Method for storing and getting water by blocking river on natural river course | |
| CN109184255A (en) | A method of utilizing microorganism grout sealing outer wall of basement crack | |
| CN102226335A (en) | Foundation treatment method for controlling post-construction settlement and deformation of soft soil | |
| CN103277120A (en) | Post-unfreezing water burst prevention method of non-full-depth freezing vertical shaft | |
| CN106544961A (en) | A kind of distress in concrete blocking method | |
| CN108999179B (en) | Method for reinforcing and treating soft soil foundation by combining vacuum preloading and microorganism sand consolidation technology | |
| CN206721822U (en) | A kind of Novel geogrid and the old and new's dyke joint portion ruggedized construction | |
| CN106884424A (en) | A kind of device and construction method that microorganism solidification is carried out in thin silt | |
| CN202040445U (en) | Salt drainage pipe for soil improvement | |
| CN215669744U (en) | Masonry structure basement seepage slip casting repair structure | |
| CN105155510A (en) | Method capable of carrying out microorganism solidifying and crusting on super soft foundation surface and matching device | |
| CN109881660A (en) | A kind of microorganism solidifies the marine structure foundation scouring protection construction method of joint cut-pff wall | |
| CN204715426U (en) | A kind of water burst drainage system for closed deep foundation ditch exploratory hole | |
| CN104399740B (en) | A kind of horizontal sealing Rotating fields and its method for contaminated soil remediation | |
| CN114657971B (en) | Microbial microcapsule, preparation method thereof and application of microbial microcapsule in curing soft soil foundation | |
| CN112942388B (en) | Water burst disaster treatment system and method suitable for crack development side slope | |
| CN205224011U (en) | A dull and stereotyped slip casting device of microorganism for reinforcing ground that can liquefy | |
| CN112081125A (en) | Bottom sealing structure of foundation pit in submersible sandy gravel stratum and construction process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170329 Address after: 250014 Heping Road, Lixia District, Shandong, Ji'nan, China, No. 47 Patentee after: Shandong Jian special special engineering Co., Ltd. Address before: Feng Ming Licheng District Lingang Development Zone, 250101 Ji'nan Road, Shandong Province Patentee before: Shandong Construction University |
|
| TR01 | Transfer of patent right |