CN106866171A - A kind of preparation method of imitative volcanic rock porous material - Google Patents
A kind of preparation method of imitative volcanic rock porous material Download PDFInfo
- Publication number
- CN106866171A CN106866171A CN201710103955.3A CN201710103955A CN106866171A CN 106866171 A CN106866171 A CN 106866171A CN 201710103955 A CN201710103955 A CN 201710103955A CN 106866171 A CN106866171 A CN 106866171A
- Authority
- CN
- China
- Prior art keywords
- alkali
- parts
- activator
- imitative
- foam stabilizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B28/006—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 mineral polymers, e.g. geopolymers of the Davidovits type
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention discloses a kind of preparation method of imitative volcanic rock porous material, including：(1) raw material is claimed；(2) by the active addition with alkali-activated carbonatite activity；Nonactive mixing material as filler；Setting time conditioning agent, anti-crack fiber, inorganic mineral pigments are placed in stirring container, stir evenly to obtain mixture；(3) alkali-activator, chemical blowing catalyst and thickening foam stabilizer are dissolved in water, are stirred；The alkali-activator aqueous solution, the thickening foam stabilizer aqueous solution and chemical blowing aqueous catalyst solution are added in mixture, are stirred, temperature adjustment；(4) CBA is added in the slurry of step (3) acquisition, stirring；Pour into mould, pave uniform；After hardening is condensed, peeling, cutting, maintenance obtains imitative volcanic rock porous material.Raw material of the present invention are industrial residue, without calcining, energy-conserving and environment-protective.Condense firm time fast, be beneficial to mould and quickly have enough to meet the need.Product strength is high, good endurance, with low cost.
Description
Technical field
The present invention relates to building decoration, construction landscape Material Field.In particular, it is to be related to one kind based on alkali-activated carbonatite glue
The preparation method of the imitative volcanic rock porous material of gel material.
Background technology
Volcanic rock belongs to a class of magmatic rock (igneous rock) also known as effusive rock.It is by containing gas slag, solid magma slag
Molten magma erupt after, temperature and pressure declines rapidly, there occurs and chemically and physically change, so formed with non-
The stone material of regular natural cellular loose structure.
This stone material is because of its environmentally friendly (low diathermaneity), quality hard characteristic and the water suction " breathing " such as simple and unsophisticated, durable in use
The functions such as damping, soft anti-skidding, sqouynd absorption lowering noise and be widely used in machine tangent plane sheet material, stone material essay, stone railing, engraved stone
Product, stone furniture etc..
In the last few years, because this special rock material resource of volcanic rock is rare and exploitation limited, existing enterprise and scientific research institution taste
Examination is artificial to prepare imitative volcanic rock porous material.Current method is mainly based upon Portland cement and quick hardening sulphoaluminate cement
It is prepared.The former condenses hardening relatively slowly, causes the production cycle more long；The latter's volume stability is poor to cause product easily to open
Split, durability is bad.And both of which is using calcined materials --- cement is used as raw material, high energy consumption and pollution environment.In addition, this
Two kinds of primary limited strengths of cement cementitious system, certainly will cause the imitative volcanic rock strength of materials prepared therefrom to be less than natural volcano
Rock material.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of preparation side of imitative volcanic rock porous material
Method.
Technical scheme is summarized as follows：
A kind of preparation method of imitative volcanic rock porous material, comprises the following steps：
(1) weigh by weight：100 parts of the active addition with alkali-activated carbonatite activity；It is nonactive mixed as filler
Condensation material 0-100 parts；Conditioning agent 1-3.25 parts of setting time；Alkali-activator 4-12 parts；0.1-2.5 parts of chemical blowing catalyst；
CBA 2-8 parts；Water 27-55 parts；0.01-5 parts of foam stabilizer of thickening；Anti-crack fiber 0.01-0.6 parts；Inorganic mineral face
1-7 parts of material；
The active addition with alkali-activated carbonatite activity is ground granulated blast-furnace slag powder, flyash, levigate volcano
Grey matter mixing material and silicon ash are at least one；
The nonactive mixing material as filler is discarded clay powder, scrap glass powder, sludge powder and building waste
Powder is at least one；
The setting time conditioning agent is barium nitrate, sodium phosphate or tertiary sodium phosphate；
(2) by the active addition with alkali-activated carbonatite activity；Nonactive mixing material as filler；Setting time adjusts
Section agent, anti-crack fiber, inorganic mineral pigments are placed in stirring container, and stir to obtain mixture；By alkali-activator, chemistry hair
Bubble catalyst and thickening foam stabilizer are dissolved separately in the water of weighing, are stirred；
(3) the alkali-activator aqueous solution, the thickening foam stabilizer aqueous solution and chemical blowing aqueous catalyst solution are added to mixing
In thing, under the conditions of 120r/min-300r/min, 3-5min is stirred, adjust the temperature to 30 DEG C -65 DEG C；
(4) CBA is added in the slurry of step (3) acquisition, under conditions of 275r/min-600r/min
Stirring 10s-20s；Pour into mould, pave uniform；After hardening is condensed, peeling, cutting, in 20 DEG C ± 2 DEG C, relative humidity
Conserved under conditions of 95%, -28 days 14 days, obtain imitative volcanic rock porous material.
Preferably, with alkali-activated carbonatite activity active addition by weight by 77-99 parts of ground granulated blast-furnace slag powder,
0-15 parts of flyash, 0-8 parts of silicon ash composition, are 0 when the flyash is different with silicon ash.
Preferably, alkali-activator is NaOH or waterglass.
Preferably, chemical blowing catalyst is at least one of manganese dioxide, potassium permanganate and ferric trichloride.
Preferably, CBA is that mass fraction is the hydrogen peroxide of 27.7%-35%.
Preferably, thickening foam stabilizer is the hydroxypropyl methyl fibre of the methyl cellulose ether of viscosity 6-15 ten thousand, viscosity 6-15 ten thousand
The plain ether of dimension, the ethoxyl methyl cellulose ether of viscosity 6-15 ten thousand, polyvinyl alcohol, Anion molecule amount are 500-800 ten thousand poly- third
Acrylamide, sesbania gum, Arabic gum, guar gum or gelatin.
Preferably, anti-crack fiber is polypropylene fibre, fiber crops fibre that length be 5-20mm of the pencil filament length for 9-19mm
Dimension, length are the bamboo fibre of 5-20mm for the stalk fibre or length of 5-20mm.
Preferably, inorganic mineral pigments are by least in iron oxide black, iron oxide yellow, iron oxide red, iron oxide green
Kind.
Advantages of the present invention：
1st, present invention main raw material(s) used is industrial residue, without calcining, energy-conserving and environment-protective.
2nd, the porous firm time that condenses of imitative volcanic rock of the invention is fast, is beneficial to mould and quickly has enough to meet the need.
3rd, prepare imitative volcanic rock porous material product strength is high, good endurance, with low cost.
4th, after alkali-activated carbonatite Binder Materials doping clay, remain to keep mechanics and endurance quality higher.This is beneficial to its work
Merged with plant during for landscape material.
Specific embodiment
With reference to embodiments, the present invention will be described in further detail.It should be appreciated that specific reality described herein
Apply example to be used to explain the present invention, be not intended to limit the present invention.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of the invention.
The preferred specific surface area of ground granulated blast-furnace slag powder of each embodiment is more than 350m3/kg；
The levigate preferred specific surface area of pozzolana mixed material is more than 350m3/kg；
The preferred specific surface area of nonactive mixing material as filler is more than 300m3The discarded clay powder of/kg, scrap glass
Powder, sludge powder and building waste powder.
Embodiment 1-8 steps (1) weighs raw material and is shown in Table 1 (part therein is weight portion)
MC writes a Chinese character in simplified form for methyl cellulose ether；
HPMC writes a Chinese character in simplified form for hydroxypropyl methyl cellulose ether；
HEMC writes a Chinese character in simplified form for ethoxyl methyl cellulose ether.
Embodiment 9
A kind of preparation method of imitative volcanic rock porous material, comprises the following steps：
(1) active addition with alkali-activated carbonatite activity is weighed by each component in the embodiment 1 of table 1 and parts by weight；
Nonactive mixing material as filler；Setting time conditioning agent；Alkali-activator；Chemical blowing catalyst；CBA；
Water；Thickening foam stabilizer；Anti-crack fiber；Inorganic mineral pigments；
(2) by the active addition with alkali-activated carbonatite activity；Nonactive mixing material as filler；Setting time adjusts
Section agent, anti-crack fiber, inorganic mineral pigments are placed in stirring container, and stir to obtain mixture；By alkali-activator, chemistry hair
Bubble catalyst and thickening foam stabilizer are dissolved separately in the water of weighing, are stirred；
(3) the alkali-activator aqueous solution, the thickening foam stabilizer aqueous solution and chemical blowing aqueous catalyst solution are added to mixing
In thing, under the conditions of 200r/min, 4min is stirred, adjust the temperature to 50 DEG C；
(4) CBA is added in the slurry of step (3) acquisition, 15s is stirred under conditions of 400r/min；
Enter in mould, pave uniform；After hardening is condensed, peeling, cutting is supported under conditions of 20 DEG C ± 2 DEG C, relative humidity 95%
Shield, 20 days, obtains imitative volcanic rock porous material.
Embodiment 10
A kind of preparation method of imitative volcanic rock porous material, comprises the following steps：
(1) active addition with alkali-activated carbonatite activity is weighed by each component in the embodiment 2 of table 1 and parts by weight；
Nonactive mixing material as filler；Setting time conditioning agent；Alkali-activator；Chemical blowing catalyst；CBA；
Water；Thickening foam stabilizer；Anti-crack fiber；Inorganic mineral pigments；
(2) by the active addition with alkali-activated carbonatite activity；Nonactive mixing material as filler；Setting time adjusts
Section agent, anti-crack fiber, inorganic mineral pigments are placed in stirring container, and stir to obtain mixture；By alkali-activator, chemistry hair
Bubble catalyst and thickening foam stabilizer are dissolved separately in the water of weighing, are stirred；
(3) the alkali-activator aqueous solution, the thickening foam stabilizer aqueous solution and chemical blowing aqueous catalyst solution are added to mixing
In thing, under the conditions of 120r/min, 5min is stirred, adjust the temperature to 30 DEG C；
(4) CBA is added in the slurry of step (3) acquisition, 20s is stirred under conditions of 275r/min；
Enter in mould, pave uniform；After hardening is condensed, peeling, cutting is supported under conditions of 20 DEG C ± 2 DEG C, relative humidity 95%
Shield, 14 days, obtains imitative volcanic rock porous material.
Embodiment 11
A kind of preparation method of imitative volcanic rock porous material, comprises the following steps：
(1) active addition with alkali-activated carbonatite activity is weighed by each component in the embodiment 3 of table 1 and parts by weight；
Nonactive mixing material as filler；Setting time conditioning agent；Alkali-activator；Chemical blowing catalyst；CBA；
Water；Thickening foam stabilizer；Anti-crack fiber；Inorganic mineral pigments；
(2) by the active addition with alkali-activated carbonatite activity；Nonactive mixing material as filler；Setting time adjusts
Section agent, anti-crack fiber, inorganic mineral pigments are placed in stirring container, and stir to obtain mixture；By alkali-activator, chemistry hair
Bubble catalyst and thickening foam stabilizer are dissolved separately in the water of weighing, are stirred；
(3) the alkali-activator aqueous solution, the thickening foam stabilizer aqueous solution and chemical blowing aqueous catalyst solution are added to mixing
In thing, under the conditions of 300r/min, 3min is stirred, adjust the temperature to 65 DEG C；
(4) CBA is added in the slurry of step (3) acquisition, 10s is stirred under conditions of 600r/min；
Enter in mould, pave uniform；After hardening is condensed, peeling, cutting is supported under conditions of 20 DEG C ± 2 DEG C, relative humidity 95%
Shield, 28 days, obtains imitative volcanic rock porous material.
Imitative volcanic rock porous material prepared by the present invention with direct spraying organic silicon surface-protective agent, or can decorated
Organic silicon surface-protective agent is sprayed after the completion of construction, organic silicon surface-protective agent selects isobutyl triethoxy silane monomer
Or isooctyltriethoxysilane monomer.
The formula of embodiment 4-8 is all prepared as described in Example 9, respectively embodiment 12, embodiment 13, embodiment
14th, embodiment 15 and embodiment 16, the apparent density of imitative volcanic rock porous material prepared by each embodiment, cube pressure resistance
Degree, water absorption rate is shown in Table 2.
Table 2
| Cubic compressive strength MPa | Water absorption rate % | ||
| Embodiment 9 | 1 | 12 | 1000 |
| Embodiment 10 | 2.8 | 8 | 1400 |
| Embodiment 11 | 1.2 | 66 | 630 |
| Embodiment 12 | 3.4 | 75 | 530 |
| Embodiment 13 | 1.6 | 100 | 400 |
| Embodiment 14 | 2.4 | 48 | 820 |
| Embodiment 15 | 4.5 | 68 | 600 |
| Embodiment 16 | 2.8 | 50 | 760 |
Claims (8)
1. a kind of preparation method of imitative volcanic rock porous material, it is characterized in that comprising the following steps：
(1) weigh by weight：100 parts of the active addition with alkali-activated carbonatite activity；Nonactive mixing material as filler
0-100 parts of material；Conditioning agent 1-3.25 parts of setting time；Alkali-activator 4-12 parts；0.1-2.5 parts of chemical blowing catalyst；Chemistry
Foaming agent 2-8 parts；Water 27-55 parts；0.01-5 parts of foam stabilizer of thickening；Anti-crack fiber 0.01-0.6 parts；Inorganic mineral pigments 1-7
Part；
The active addition with alkali-activated carbonatite activity is ground granulated blast-furnace slag powder, flyash, levigate volcano grey matter
Mixing material and silicon ash are at least one；
The nonactive mixing material as filler is to discard clay powder, scrap glass powder, sludge powder and building waste powder extremely
Few one kind；
The setting time conditioning agent is barium nitrate, sodium phosphate or tertiary sodium phosphate；
(2) by the active addition with alkali-activated carbonatite activity；Nonactive mixing material as filler；Setting time is adjusted
Agent, anti-crack fiber, inorganic mineral pigments are placed in stirring container, and stir to obtain mixture；By alkali-activator, chemical blowing
Catalyst and thickening foam stabilizer are dissolved separately in the water of weighing, are stirred；
(3) the alkali-activator aqueous solution, the thickening foam stabilizer aqueous solution and chemical blowing aqueous catalyst solution are added in mixture,
Under the conditions of 120r/min-300r/min, 3-5min is stirred, adjust the temperature to 30 DEG C -65 DEG C；
(4) CBA is added in the slurry of step (3) acquisition, is stirred under conditions of 275r/min-600r/min
10s-20s；Pour into mould, pave uniform；After hardening is condensed, peeling, cutting, in 20 DEG C ± 2 DEG C, relative humidity 95%
Under the conditions of conserve, -28 days 14 days, obtain imitative volcanic rock porous material.
2. method according to claim 1, it is characterized in that the active addition with alkali-activated carbonatite activity is by weight
It is made up of 77-99 parts of ground granulated blast-furnace slag powder, 0-15 parts of flyash, 0-8 parts of silicon ash, when the flyash is different with silicon ash
It is 0.
3. method according to claim 1, it is characterized in that the alkali-activator is NaOH or waterglass.
4. method according to claim 1, it is characterized in that the chemical blowing catalyst be manganese dioxide, potassium permanganate and
At least one of ferric trichloride.
5. method according to claim 1, it is characterized in that it is 27.7%-35%'s that the CBA is mass fraction
Hydrogen peroxide.
6. method according to claim 1, it is characterized in that the thickening foam stabilizer is the methylcellulose of viscosity 6-15 ten thousand
Ether, the hydroxypropyl methyl cellulose ether of viscosity 6-15 ten thousand, the ethoxyl methyl cellulose ether of viscosity 6-15 ten thousand, polyvinyl alcohol, the moon
Ionic molecule amount is the polyacrylamides of 500-800 ten thousand, sesbania gum, Arabic gum, guar gum or gelatin.
7. method according to claim 1, it is characterized in that the anti-crack fiber to be pencil filament length poly- for 9-19mm
Flaxen fiber, the bamboo fibre that the stalk fibre or length that length is 5-20mm are 5-20mm of tacryl, length for 5-20mm.
8. method according to claim 1, it is characterized in that the inorganic mineral pigments be iron oxide black, iron oxide yellow,
At least one of iron oxide red, iron oxide green.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710103955.3A CN106866171B (en) | 2017-02-24 | 2017-02-24 | Preparation method of volcanic rock-like porous material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710103955.3A CN106866171B (en) | 2017-02-24 | 2017-02-24 | Preparation method of volcanic rock-like porous material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106866171A true CN106866171A (en) | 2017-06-20 |
| CN106866171B CN106866171B (en) | 2020-06-26 |
Family
ID=59167717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710103955.3A Active CN106866171B (en) | 2017-02-24 | 2017-02-24 | Preparation method of volcanic rock-like porous material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106866171B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116143541A (en) * | 2022-12-12 | 2023-05-23 | 华润水泥技术研发有限公司 | Artificial vesuvianite porous material prepared from iron tailings and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603355A (en) * | 2012-03-18 | 2012-07-25 | 巢启 | Basic group geopolymer porous material |
| US20140264140A1 (en) * | 2013-03-14 | 2014-09-18 | The Catholic University Of America | High-strength geopolymer composite cellular concrete |
| CN106242614A (en) * | 2016-07-28 | 2016-12-21 | 浙江大学 | Utilize the method that building waste fine powder develops ultralight foam concrete |
-
2017
- 2017-02-24 CN CN201710103955.3A patent/CN106866171B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603355A (en) * | 2012-03-18 | 2012-07-25 | 巢启 | Basic group geopolymer porous material |
| US20140264140A1 (en) * | 2013-03-14 | 2014-09-18 | The Catholic University Of America | High-strength geopolymer composite cellular concrete |
| CN106242614A (en) * | 2016-07-28 | 2016-12-21 | 浙江大学 | Utilize the method that building waste fine powder develops ultralight foam concrete |
Non-Patent Citations (1)
| Title |
|---|
| 陈福松等: "碱-矿渣胶凝材料及其缓凝剂的研究进展", 《粉煤灰》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116143541A (en) * | 2022-12-12 | 2023-05-23 | 华润水泥技术研发有限公司 | Artificial vesuvianite porous material prepared from iron tailings and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106866171B (en) | 2020-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108129122A (en) | A kind of preparation method of phosphorus paring stone cream base lightweight gravity flowing levelling mortar | |
| CN103641358B (en) | Effective pumping aid in premixing commodity packing design polycarboxylic acid series | |
| CN102173644B (en) | Pea protein concrete foaming agent and preparation method thereof | |
| CN106746778B (en) | A kind of activity of steel slag agent and preparation method thereof, application | |
| CN107200544A (en) | A kind of energy-conserving and environment-protective construction material and preparation method thereof | |
| CN107021719A (en) | A kind of high-strength energy-saving surface layer brushing gypsum and its preparation technology | |
| CN106830979A (en) | A kind of imitative volcanic rock porous material | |
| CN106587926A (en) | Preparation method of water-permeable ceramic brick | |
| CN108793872A (en) | A kind of haydite foaming concrete | |
| CN106673577A (en) | Gypsum-based ceramic tile binder and preparation method thereof | |
| CN106431150A (en) | Method for preparing aerogel composite sandstone plate with construction waste as aggregate and industrial solid waste as admixture | |
| CN107140915A (en) | A kind of light heat-resisting tailings hollow brick and its preparation | |
| CN109437828A (en) | A kind of steel slag carbonization aquation collaboration technique | |
| CN101318789A (en) | Concrete air-entrainer and preparation method thereof | |
| CN112341082A (en) | Pervious concrete based on steel slag and recycled aggregate and preparation method thereof | |
| CN110963761A (en) | Basalt-reinforced thin-layer light plastering mortar | |
| CN106866171A (en) | A kind of preparation method of imitative volcanic rock porous material | |
| CN109851296A (en) | Pervious concrete aerated bricks | |
| CN106518004A (en) | Water-permeable brick prepared from ceramic waste and starch factory sludge powder | |
| CN103819628B (en) | A kind of water reducer with concrete workability regulatory function and synthetic method thereof | |
| CN107162507B (en) | A kind of wall plastering or tiling mortar and preparation method thereof | |
| CN109608149A (en) | A kind of phosphorus building gypsum foamed heat insulating building block and preparation method thereof | |
| CN109294313A (en) | A kind of high-quality bouncing putty used for building exterior wall and preparation method thereof | |
| CN105236932B (en) | A kind of preparation method of light-weight insulating brick | |
| CN107140909A (en) | It is incubated sand material material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 301799 Tianjin city Wuqing District Road No. 9 sinter Applicant after: TIANJIN CONSTRUCTION ENGINEERING QUALITY INSPECTION CENTER Co.,Ltd. Address before: 301799 Tianjin City, Wuqing Development Zone, Wuqing District tufas Road No. 9 Applicant before: TIANJIN ARCHITECTURAL ENGINEERING QUALITY INSPECTION CENTER |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |