CN107098648B - A kind of Cement Concrete Pavement Reconstruction material and preparation method thereof - Google Patents

A kind of Cement Concrete Pavement Reconstruction material and preparation method thereof Download PDF

Info

Publication number
CN107098648B
CN107098648B CN201710344996.1A CN201710344996A CN107098648B CN 107098648 B CN107098648 B CN 107098648B CN 201710344996 A CN201710344996 A CN 201710344996A CN 107098648 B CN107098648 B CN 107098648B
Authority
CN
China
Prior art keywords
parts
sandstone
concrete pavement
cement concrete
casein
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.)
Expired - Fee Related
Application number
CN201710344996.1A
Other languages
Chinese (zh)
Other versions
CN107098648A (en
Inventor
不公告发明人
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Jiaji Construction Engineering Co., Ltd.
Original Assignee
Guangdong Jiaji Construction Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Jiaji Construction Engineering Co Ltd filed Critical Guangdong Jiaji Construction Engineering Co Ltd
Priority to CN201710344996.1A priority Critical patent/CN107098648B/en
Publication of CN107098648A publication Critical patent/CN107098648A/en
Application granted granted Critical
Publication of CN107098648B publication Critical patent/CN107098648B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04Portland cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075Uses not provided for elsewhere in C04B2111/00 for road construction
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/29Frost-thaw resistance
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/72Repairing or restoring existing buildings or building materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
    • C04B2201/52High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]

Abstract

The invention discloses a kind of Cement Concrete Pavement Reconstruction material and preparation method thereof, which includes: 55-63 parts of portland cement, red beautiful 18-26 parts of soil, 47-55 parts of sandstone, 9-17 parts of casein, 11-19 parts of polyethylene terephthalate, 16-24 parts of polylactic acid according to the raw material of parts by weight.Portland cement is added after red beautiful soil, casein, polyethylene terephthalate and polylactic acid are crushed, mixed to mix;Then sandstone and sodium hydrate aqueous solution is added, is mixed, stands to obtain the final product.The present invention has the crack resistance of good low temperature, and the stability of high temperature, the caking property at interface, ageing resistance and anti-fatigue performance, higher mobility are suitable for the crack of the cement concrete pavement under the cold climate conditions of pole and the repairing of seam.The present invention can be open to traffic for 1h after repairing road surface, be substantially shorter the open to traffic time, without repairing repeatedly after primary repairing, effectively improve the damage resistance energy on road surface, extend the service life of highway.

Description

A kind of Cement Concrete Pavement Reconstruction material and preparation method thereof
Technical field
The present invention relates to building material technical field, specifically a kind of Cement Concrete Pavement Reconstruction material and its preparation side Method.
Background technique
Pavement crack mainly appears on highway early damage as one of highway in China Major Diseases, such as handles not in time The service performance that will seriously affect road increases considerably the road maintenance phase with maintenance cost in advance, while directly shortening road Road service life.In the Northeast, China, since winter low temperature is low, generally at -20~-40 DEG C, summer high temperature can but reach 40 DEG C or so.Traditional patching material mostly uses modified asphalt, and common base joint grouting glue, affixing kerfs belt etc, these materials are low At -30 DEG C of temperature, material has become glassy state, during operation, occurs as soon as cracking quickly under the action of vehicle-mounted, often In a complete winter, part or major part crack patching material, and in the environment of being transferred to summer high temperature, patching material then softens It becomes sticky as wheel is taken away.It is unable to reach the requirement of road maintenance at all.Existing Concrete Highway road surface, when repairing, one As be directly directly to pour into the concrete newly poured in pit slot, its surface and road surface are smoothed out, then i.e. completion is repaired after conserving It is multiple.This mode, there are construction time length, to the cohesion of original cement concrete low the defects of being easy to fall off.Especially pair It is shorter and shorter to the time requirement of open to traffic in order to reduce economic loss in the transport hub location of highway, to repairing The life requirement of material is higher and higher.
Summary of the invention
It is above-mentioned to solve the purpose of the present invention is to provide a kind of Cement Concrete Pavement Reconstruction material and preparation method thereof The problem of being proposed in background technique.
To achieve the above object, the invention provides the following technical scheme:
A kind of Cement Concrete Pavement Reconstruction material, the raw material according to parts by weight includes: 55-63 parts of portland cement, red Beautiful 18-26 parts of soil, 47-55 parts of sandstone, 9-17 parts of casein, 11-19 parts of polyethylene terephthalate, polylactic acid 16-24 Part.
As a further solution of the present invention: sandstone includes the big sand of the fine sand of < 3mm, the middle sand of 3-5mm, 5-8mm, and Mass ratio is 1:1.8-2.5:1.3-1.5.
As a further solution of the present invention: sandstone includes the big sand of the fine sand of < 3mm, the middle sand of 3-5mm, 5-8mm, and Mass ratio is 1:2.2:1.4.
As a further solution of the present invention: the Cement Concrete Pavement Reconstruction material, according to the raw material packet of parts by weight It includes: 57-61 parts of portland cement, red beautiful 20-24 parts of soil, 49-53 parts of sandstone, 11-15 parts of casein, poly terephthalic acid second two 13-17 parts of alcohol ester, 18-22 parts of polylactic acid.
As a further solution of the present invention: the Cement Concrete Pavement Reconstruction material, according to the raw material packet of parts by weight Include: 59 parts of portland cement, 51 parts of sandstone, 13 parts of casein, 15 parts of polyethylene terephthalate, gathers red beautiful 22 parts of soil 20 parts of lactic acid.
A kind of preparation method of Cement Concrete Pavement Reconstruction material, comprising the following steps:
Red beautiful soil, casein, polyethylene terephthalate and polylactic acid are crushed, cross 100-120 mesh, mixing is equal Portland cement is added after even to be mixed evenly;Then sandstone is added and stirs evenly, adds required quality percentage and contains The sodium hydrate aqueous solution of 5-10% is measured, stands 40-50min after 25-30min is mixed up to patching material.
As a further solution of the present invention: mixing speed 200-350r/min.
Compared with prior art, the beneficial effects of the present invention are:
The present invention have good low temperature crack resistance, the stability of high temperature, the caking property at interface, ageing resistance and resist it is tired Labor performance is suitable for the crack of the cement concrete pavement under the cold climate conditions of pole and the repairing of seam.The present invention have compared with High mobility, can be closely knit by big mobility itself, self-assembling formation intensity, and the repairing for express highway pavement is quick Effectively, it does not need large roller to roll, it is only necessary to which the maintenance work of road surface pit slot can be rapidly completed in simple paving and leveling.This Invention can be open to traffic for 1h after repairing road surface, be substantially shorter the open to traffic time, without repairing repeatedly after primary repairing.This Invented technology is simple and easy, and the construction time is short, the effect of excellent bonding performance, has deformability after repairing at road surface breakage It is good, waterproof performance is good, Wear-resistant, high-temperature resistant, it is low temperature resistant the features such as, effectively improve the damage resistance energy on road surface, extend highway Service life.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described, Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all Belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of Cement Concrete Pavement Reconstruction material, the raw material according to quality includes: silicate cement Mud 55kg, red beautiful soil 18kg, sandstone 47kg, casein 9kg, polyethylene terephthalate 11kg, polylactic acid 16kg.Sandstone The big sand of the middle sand of fine sand, 3-5mm including < 3mm, 5-8mm, and mass ratio is 1:1.8:1.3.By red beautiful soil, casein, Polyethylene terephthalate is crushed with polylactic acid, is sieved with 100 mesh sieve, and portland cement is added after mixing and is mixed It is even;Then sandstone is added and stirs evenly, mixing speed 200r/min.Add the hydrogen of required mass percentage 5% Aqueous solution of sodium oxide stands 40min after 25min is mixed up to patching material.
Embodiment 2
In the embodiment of the present invention, a kind of Cement Concrete Pavement Reconstruction material, the raw material according to quality includes: silicate cement Mud 63kg, red beautiful soil 26kg, sandstone 55kg, casein 17kg, polyethylene terephthalate 19kg, polylactic acid 24kg.Sand Stone includes the big sand of the fine sand of < 3mm, the middle sand of 3-5mm, 5-8mm, and mass ratio is 1:2.5:1.5.By red beautiful soil, cheese Element, polyethylene terephthalate and polylactic acid crush, cross 120 meshes, and portland cement mixing is added after mixing and stirs It mixes uniformly;Then sandstone is added and stirs evenly, mixing speed 350r/min.Add required mass percentage 10% Sodium hydrate aqueous solution, be mixed 30min after stand 50min up to patching material.
Embodiment 3
In the embodiment of the present invention, a kind of Cement Concrete Pavement Reconstruction material, the raw material according to quality includes: silicate cement Mud 57kg, red beautiful soil 20kg, sandstone 49kg, casein 11kg, polyethylene terephthalate 13kg, polylactic acid 18kg.Sand Stone includes the big sand of the fine sand of < 3mm, the middle sand of 3-5mm, 5-8mm, and mass ratio is 1:2.2:1.4.By red beautiful soil, cheese Element, polyethylene terephthalate and polylactic acid crush, cross 120 meshes, and portland cement mixing is added after mixing and stirs It mixes uniformly;Then sandstone is added and stirs evenly, mixing speed 250r/min.Add required mass percentage 8% Sodium hydrate aqueous solution, be mixed 28min after stand 45min up to patching material.
Embodiment 4
In the embodiment of the present invention, a kind of Cement Concrete Pavement Reconstruction material, the raw material according to quality includes: silicate cement Mud 61kg, red beautiful soil 24kg, sandstone 53kg, casein 15kg, polyethylene terephthalate 17kg, polylactic acid 22kg.Sand Stone includes the big sand of the fine sand of < 3mm, the middle sand of 3-5mm, 5-8mm, and mass ratio is 1:2.2:1.4.By red beautiful soil, cheese Element, polyethylene terephthalate and polylactic acid crush, cross 120 meshes, and portland cement mixing is added after mixing and stirs It mixes uniformly;Then sandstone is added and stirs evenly, mixing speed 250r/min.Add required mass percentage 8% Sodium hydrate aqueous solution, be mixed 28min after stand 45min up to patching material.
Embodiment 5
In the embodiment of the present invention, a kind of Cement Concrete Pavement Reconstruction material, the raw material according to quality includes: silicate cement Mud 59kg, red beautiful soil 22kg, sandstone 51kg, casein 13kg, polyethylene terephthalate 15kg, polylactic acid 20kg.Sand Stone includes the big sand of the fine sand of < 3mm, the middle sand of 3-5mm, 5-8mm, and mass ratio is 1:2.2:1.4.By red beautiful soil, cheese Element, polyethylene terephthalate and polylactic acid crush, cross 120 meshes, and portland cement mixing is added after mixing and stirs It mixes uniformly;Then sandstone is added and stirs evenly, mixing speed 250r/min.Add required mass percentage 8% Sodium hydrate aqueous solution, be mixed 28min after stand 45min up to patching material.
Correlated performance test is carried out to patching material made from embodiment 1-5 respectively, result is as shown in table 1-2.
Table 1
Table 2
As can be seen that implementing the performance of 1-5 can meet the requirements from table 1-2, patching material of the present invention is on repairing road surface When pit slot, without compacting, fills up good material and wait for that temperature reduction can be open to traffic, quickly and effectively easily implement.
About agent on crack resistance of concrete in mechanical property tests method reference " highway engineering cement and cement concrete testing regulations " Compressive strength test method experiment is rolled over, the results are shown in Table 3:
Table 3
1h 1d 3d 28d
Flexural strength (MPa) 3.1-3.6 3.9-4.2 5.3-5.8 5.9-6.2
Compression strength (MPa) 29.8-36.8 49.5-54.6 56.9-61.8 63.6-66.9
With the open to traffic that can be open to traffic after this patching material remedial cement concrete road surface 1h.And shrinking percentage is after testing It was found that early stage shows as microdilatancy, but expansion rate is minimum, on concrete inner structure almost without influence, 28 days shrinking percentages of concrete It is 0.015%, meets mending concrete required in " Cement Concrete Pavement Slab block patching material and repairing technique compare " 28d shrinking percentage is no more than 0.02% requirement.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (6)

1. a kind of Cement Concrete Pavement Reconstruction material, which is characterized in that the raw material including following parts by weight: portland cement 55-63 parts, red beautiful 18-26 parts of soil, 47-55 parts of sandstone, 9-17 parts of casein, 11-19 parts of polyethylene terephthalate, gather 16-24 parts of lactic acid;The sandstone includes the big sand of the fine sand of < 3mm, the middle sand of 3-5mm, 5-8mm, and mass ratio is 1:1.8- 2.5:1.3-1.5。
2. Cement Concrete Pavement Reconstruction material according to claim 1, which is characterized in that sandstone includes the thin of < 3mm The big sand of sand, the middle sand of 3-5mm, 5-8mm, and mass ratio is 1:2.2:1.4.
3. Cement Concrete Pavement Reconstruction material according to claim 1, which is characterized in that the original including following parts by weight Material: 57-61 parts of portland cement, red beautiful 20-24 parts of soil, 49-53 parts of sandstone, 11-15 parts of casein, poly terephthalic acid second two 13-17 parts of alcohol ester, 18-22 parts of polylactic acid.
4. Cement Concrete Pavement Reconstruction material according to claim 1, which is characterized in that the original including following parts by weight Material: 59 parts of portland cement, 51 parts of sandstone, 13 parts of casein, 15 parts of polyethylene terephthalate, gathers red beautiful 22 parts of soil 20 parts of lactic acid.
5. the preparation method of the Cement Concrete Pavement Reconstruction material as described in claim 1 ~ 4 any one, which is characterized in that The following steps are included:
Red beautiful soil, casein, polyethylene terephthalate and polylactic acid are crushed, cross 100-120 mesh, after mixing Portland cement is added to be mixed evenly;Then sandstone is added and stirs evenly, adds required mass percentage 5- 10% sodium hydrate aqueous solution stands 40-50min after 25-30min is mixed up to patching material.
6. the preparation method of Cement Concrete Pavement Reconstruction material according to claim 5, which is characterized in that mixing speed For 200-350r/min.
CN201710344996.1A 2017-05-16 2017-05-16 A kind of Cement Concrete Pavement Reconstruction material and preparation method thereof Expired - Fee Related CN107098648B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710344996.1A CN107098648B (en) 2017-05-16 2017-05-16 A kind of Cement Concrete Pavement Reconstruction material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710344996.1A CN107098648B (en) 2017-05-16 2017-05-16 A kind of Cement Concrete Pavement Reconstruction material and preparation method thereof

Publications (2)

Publication Number Publication Date
CN107098648A CN107098648A (en) 2017-08-29
CN107098648B true CN107098648B (en) 2019-06-21

Family

ID=59670159

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710344996.1A Expired - Fee Related CN107098648B (en) 2017-05-16 2017-05-16 A kind of Cement Concrete Pavement Reconstruction material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN107098648B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108218343B (en) * 2018-01-02 2020-07-10 祎禾科技有限公司 Repairing material for extremely cold road surface and preparation method and application thereof
CN110313338A (en) * 2019-07-03 2019-10-11 广州市新茵园林绿化管理有限公司 Hard place low-density seedling root soil space builds construction method
CN113233838B (en) * 2021-05-28 2022-06-21 海阳市利安建材有限公司 Anti-cracking durable concrete and preparation method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102030509B (en) * 2010-10-20 2012-07-25 广东龙湖科技股份有限公司 Grouting material for repairing freeway subgrade
CN105272104B (en) * 2015-06-17 2017-01-25 杭州正博新型建筑材料有限公司 Self-leveling floor mortar and preparation method thereof
CN105384415A (en) * 2015-11-04 2016-03-09 永州市中大特种水泥有限责任公司 Inorganic pavement repair material and preparation method thereof

Also Published As

Publication number Publication date
CN107098648A (en) 2017-08-29

Similar Documents

Publication Publication Date Title
CN103145396B (en) Multifunctional quick repair material for cement concrete pavements and preparation method thereof
CN107098648B (en) A kind of Cement Concrete Pavement Reconstruction material and preparation method thereof
CN103570334B (en) Quick cold-patch repair method for asphalt pavement, and application thereof
CN108070269A (en) A kind of epoxy-modified emulsified asphalt mist containing sand sealing material and its preparation method and application
CN102503285A (en) Polymer-modified early-strengthening repair mortar and preparation method and application thereof
CN105272125A (en) Geopolymer-based rapid repairing material and preparation method thereof
CN109250994A (en) A kind of concrete repair materials that expressway surface is quickly repaired and method
CN104829186A (en) Preparation method of heat-repairing concrete containing asphalt aggregate
CN102030509B (en) Grouting material for repairing freeway subgrade
CN106800400B (en) A kind of preparation method and applications of road repair mortar dry powder
CN110981307A (en) Regenerated pervious concrete and preparation method thereof
CN107759137A (en) A kind of preparation method of mechanical foaming pitch warm mix regenerating mixture
CN112939514B (en) Quick-drying early-strength concrete suitable for rapid restoration of pavement slab and preparation method thereof
CN113235351B (en) Airport pavement structure with asphalt layer paved on old cement airport runway and paving method thereof
CN112553994A (en) Composite pavement road with asphalt layer coated on sisal fiber cement-based composite material
CN107117898A (en) A kind of method for repairing and mending of express highway pavement
CN102408216B (en) Microwave heating super early strength cement concrete pavement repair material and preparation method thereof
CN107459327A (en) Suitable for low temperature or the fast repairing concrete material of construction in minus-temperature environment
CN108863167A (en) Concrete reparation and means of defence and structure based on asphalt material
CN103755225A (en) Modified bituminous mixture and preparation method thereof
CN108218343B (en) Repairing material for extremely cold road surface and preparation method and application thereof
CN104276786B (en) A kind of method that premixing bitumastic prepares self-compaction bituminous concrete
CN103756289B (en) Pavement crack cementation of fissures material and preparation method thereof
CN107032706B (en) It is a kind of to use drift-sand for the sub-surface forming method of raw material
CN215800759U (en) Composite pavement structure suitable for heavy-load traffic road

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
TA01 Transfer of patent application right

Effective date of registration: 20190527

Address after: 510000 Room 1102, Building 3, Jianyan Street, 833 Baiyun Avenue North, Baiyun District, Guangzhou City, Guangdong Province

Applicant after: Guangdong Jiaji Construction Engineering Co., Ltd.

Address before: Room B-2704, Woye Garden Commercial Building, West of Ganquan Road and South of Jinggang Road, Shushan District, Hefei City, Anhui Province

Applicant before: Hefei Weiran flower Greening Engineering Company Limited

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190621

Termination date: 20200516

CF01 Termination of patent right due to non-payment of annual fee