CN105753415B - A method of preparing cement mortar using waste rubber, bone meal - Google Patents
A method of preparing cement mortar using waste rubber, bone meal Download PDFInfo
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- CN105753415B CN105753415B CN201610337254.1A CN201610337254A CN105753415B CN 105753415 B CN105753415 B CN 105753415B CN 201610337254 A CN201610337254 A CN 201610337254A CN 105753415 B CN105753415 B CN 105753415B
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 48
- 239000005060 rubber Substances 0.000 title claims abstract description 48
- 239000002699 waste material Substances 0.000 title claims abstract description 25
- 239000011083 cement mortar Substances 0.000 title claims abstract description 20
- 229940036811 bone meal Drugs 0.000 title claims abstract description 17
- 239000002374 bone meal Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000006185 dispersion Substances 0.000 claims abstract description 10
- 239000000839 emulsion Substances 0.000 claims abstract description 10
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000012986 modification Methods 0.000 claims abstract description 8
- 230000004048 modification Effects 0.000 claims abstract description 8
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims abstract description 7
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims abstract description 7
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims abstract description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 229910019142 PO4 Inorganic materials 0.000 claims description 9
- 239000010452 phosphate Substances 0.000 claims description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000006210 lotion Substances 0.000 claims description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 6
- 241000158728 Meliaceae Species 0.000 claims description 6
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 6
- 229910052788 barium Inorganic materials 0.000 claims description 6
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 6
- 229920002678 cellulose Polymers 0.000 claims description 6
- 239000001913 cellulose Substances 0.000 claims description 6
- 235000019441 ethanol Nutrition 0.000 claims description 6
- 239000000017 hydrogel Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 6
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- 229920001661 Chitosan Polymers 0.000 claims description 3
- 239000011398 Portland cement Substances 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- 235000012255 calcium oxide Nutrition 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 3
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 3
- 239000010451 perlite Substances 0.000 claims description 3
- 235000019362 perlite Nutrition 0.000 claims description 3
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims description 3
- 229920002401 polyacrylamide Polymers 0.000 claims description 3
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- YCSMVPSDJIOXGN-UHFFFAOYSA-N CCCCCCCCCCCC[Na] Chemical compound CCCCCCCCCCCC[Na] YCSMVPSDJIOXGN-UHFFFAOYSA-N 0.000 claims 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims 1
- 239000011976 maleic acid Substances 0.000 claims 1
- -1 maleic acid Acid anhydride Chemical class 0.000 claims 1
- 229910052938 sodium sulfate Inorganic materials 0.000 claims 1
- 235000011152 sodium sulphate Nutrition 0.000 claims 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims 1
- 239000004570 mortar (masonry) Substances 0.000 abstract description 2
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000010920 waste tyre Substances 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/0427—Dry materials
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/18—Waste materials; Refuse organic
- C04B18/20—Waste materials; Refuse organic from macromolecular compounds
- C04B18/22—Rubber, e.g. ground waste tires
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
- Materials For Medical Uses (AREA)
Abstract
The invention discloses a kind of methods preparing cement mortar using waste rubber, bone meal, waste rubber is carried out graft modification by the present invention using cumyl peroxide, cement mortar hardenite toughness, ductility may make to be improved, to improve the flexural strength of mortar, the present invention takes full advantage of discarded rubber sources, bone meal, hydroxyethyl cellulose are blended with dispersion emulsion, improve the dispersibility of cement mortar.
Description
Technical field
The invention mainly relates to cement mortar fields more particularly to a kind of utilization waste rubber, bone meal to prepare cement mortar
Method.
Background technology
Waste rubber product is continuously increased, and rapid development, but recovery utilization rate is low, and a large amount of rubber products arbitrarily abandon
It is not fully utilized, results in waste of resources.World's environmentally-friendly sanitary tissue statistics, world's waste tire burden is up to more than 30
Hundred million, and increased with about 1,000,000,000 every year speed.The Ministry of Industry and Information Technology of the People's Republic of China (PRC) 2010 about
It is pointed out in waste tire comprehensive utilization instruction, China's production tire consumption of rubber in 2009 has accounted for national rubber sources and disappeared
70% or so of total amount is consumed, generates damaged tire 2.33 hundred million in year, weight is roughly equal to 8,600,000 tons, converts into rubber sources about more than 300
Ten thousand tons, if the whole recyclings of energy, are equivalent to the 5 years natural rubber yield in China.
Therefore waste rubber comprehensive utilization industry is greatly developed to saving rubber sources, improving environment caused by waste rubber
Problem, the dependence reduced to import rubber realize the sustainable development meaning of rubber sources to establishing economizing type, environment-friendly type society
Justice is great.
Invention content
The object of the invention is exactly to provide and a kind of utilizing waste rubber, bone meal system to make full use of waste rubber sources
The method of standby cement mortar.
The present invention is achieved by the following technical solutions：
A method of preparing cement mortar using waste rubber, bone meal, which is characterized in that include the following steps：
（1）The cement mortar is made of the raw material of following weight parts：
Portland cement 140-180, maleic anhydride 0.7-1, cumyl peroxide 0.1-0.2, barium mahogany sulfonate
0.2-0.3, bone meal 6-10, waste rubber 3-5, quick lime 10-12, chitosan 1-2, expanded perlite 20-40, hydroxy ethyl fiber
Plain 2-3, dispersion emulsion 2-4, phosphate composition 5-7, ethyl orthosilicate 1-2, sp-80 0.5-1, appropriate amount of water；
（2）Above-mentioned waste rubber is mixed with phosphate composition, wears into fine powder, is sent in microwave dryer, microwave
Processing 4-7 minutes, the microwave frequency are 2000-2500 MHz, and discharging is cooled to room temperature, and obtains pretreatment rubber powder；
（3）Above-mentioned hydroxyethyl cellulose is added in the water of 20-30 times of its weight, sp-80, barium mahogany sulfonate is added,
It stirs evenly, obtains cellulose lotion；
（4）Above-mentioned ethyl orthosilicate is added in the ethanol solution of 10-13 times of its weight, a concentration of 70-80%, is stirred
It mixes uniformly, the 17-20% of above-mentioned pretreatment rubber powder weight, it is 76-80 DEG C to increase temperature, and the ammonium hydroxide that a concentration of 10-13% is added dropwise is molten
Liquid, adjusting pH are 10-13, and insulation reaction 1-2 hours is cooled to room temperature, obtains Silica hydrogel；
（5）Above-mentioned maleic anhydride is added in the absolute ethyl alcohol of 20-30 times of its weight, is stirred evenly, is added remaining
Pretreatment rubber powder, cumyl peroxide obtain graft modification rubber powder insulation reaction 3-4 hours at 60-65 DEG C；
（6）Above-mentioned Silica hydrogel is added in cellulose lotion, is stirred evenly, mixes, adds with above-mentioned graft modification rubber powder
Entering dispersion emulsion, 100-200 revs/min is stirred 30-40 minutes, and ethyl alcohol is distilled off, and is mixed, is stirred evenly with remaining each raw material,
To obtain the final product.
A method of cement mortar being prepared using waste rubber, bone meal, the dispersion emulsion is by following weight parts
Raw material mixing composition：
Lauryl sodium sulfate 3-4, polyacrylamide 2-3, deionized water 100-110.
A method of cement mortar being prepared using waste rubber, bone meal, the phosphate composition is by mass ratio
For 6-8:Aluminium dihydrogen phosphate, the potassium dihydrogen phosphate mixing composition of 2-3.
It is an advantage of the invention that：
Waste rubber is carried out graft modification by the present invention using cumyl peroxide, may make cement mortar hardenite tough
Property, ductility are improved, and to improve the flexural strength of mortar, the present invention takes full advantage of discarded rubber sources, bone meal,
Hydroxyethyl cellulose is blended with dispersion emulsion, improves the dispersibility of cement mortar.
Specific implementation mode
Embodiment 1
A method of cement mortar being prepared using waste rubber, bone meal, is included the following steps：
（1）The cement mortar is made of the raw material of following weight parts：
Portland cement 180, maleic anhydride 0.7, cumyl peroxide 0.2, barium mahogany sulfonate 0.3, bone meal 10,
Waste rubber 5, quick lime 12, chitosan 1, expanded perlite 40, hydroxyethyl cellulose 2, dispersion emulsion 2, phosphate composition
7, ethyl orthosilicate 1-2, sp-80 0.5, appropriate amount of water；
（2）Above-mentioned waste rubber is mixed with phosphate composition, wears into fine powder, is sent in microwave dryer, microwave
Processing 4 minutes, the microwave frequency are 2500 MHz, and discharging is cooled to room temperature, and obtains pretreatment rubber powder；
（3）Above-mentioned hydroxyethyl cellulose is added in the water of 30 times of its weight, sp-80, barium mahogany sulfonate, stirring is added
Uniformly, cellulose lotion is obtained；
（4）Above-mentioned ethyl orthosilicate is added in 13 times of its weight, a concentration of 80% ethanol solution, is stirred evenly,
The 20% of above-mentioned pretreatment rubber powder weight, it is 80 DEG C to increase temperature, and the ammonia spirit of a concentration of 10-13% is added dropwise, and it is 13 to adjust pH,
Insulation reaction 1 hour, is cooled to room temperature, obtains Silica hydrogel；
（5）Above-mentioned maleic anhydride is added in the absolute ethyl alcohol of 30 times of its weight, is stirred evenly, remaining pre- place is added
Rubber powder, cumyl peroxide are managed, insulation reaction 4 hours at 65 DEG C obtain graft modification rubber powder；
（6）Above-mentioned Silica hydrogel is added in cellulose lotion, is stirred evenly, mixes, adds with above-mentioned graft modification rubber powder
Enter dispersion emulsion, 100 revs/min are stirred 30 minutes, and ethyl alcohol is distilled off, and are mixed with remaining each raw material, stir evenly to get.
A method of cement mortar being prepared using waste rubber, bone meal, the dispersion emulsion is by following weight parts
Raw material mixing composition：
Lauryl sodium sulfate 4, polyacrylamide 2, deionized water 110.
A method of cement mortar being prepared using waste rubber, bone meal, the phosphate composition is by mass ratio
It is 6:2 aluminium dihydrogen phosphate, potassium dihydrogen phosphate mixing composition.
Claims (1)
1. a kind of method preparing cement mortar using waste rubber, bone meal, which is characterized in that include the following steps：
（1）The cement mortar is made of the raw material of following weight parts：Portland cement 140-180, maleic acid
Acid anhydride 0.7-1, cumyl peroxide 0.1-0.2, barium mahogany sulfonate 0.2-0.3, bone meal 6-10, waste rubber 3-5, quick lime
10-12, chitosan 1-2, expanded perlite 20-40, hydroxyethyl cellulose 2-3, dispersion emulsion 2-4, phosphate composition 5-7,
Ethyl orthosilicate 1-2, sp-800.5-1, appropriate amount of water；
（2）Above-mentioned waste rubber is mixed with phosphate composition, wears into fine powder, is sent in microwave dryer, microwave treatment
4-7 minutes, the microwave frequency was 2000-2500MHz, and discharging is cooled to room temperature, and obtains pretreatment rubber powder；
（3）Above-mentioned hydroxyethyl cellulose is added in the water of 20-30 times of its weight, sp-80, barium mahogany sulfonate, stirring is added
Uniformly, cellulose lotion is obtained；
（4）Above-mentioned ethyl orthosilicate is added in the ethanol solution of 10-13 times of its weight, a concentration of 70-80%, stirring is equal
Even, the 17-20% of above-mentioned pretreatment rubber powder weight, it is 76-80 DEG C to increase temperature, and the ammonia spirit of a concentration of 10-13% is added dropwise, and is adjusted
Section pH is 10-13, and insulation reaction 1-2 hours is cooled to room temperature, obtains Silica hydrogel；
（5）Above-mentioned maleic anhydride is added in the absolute ethyl alcohol of 20-30 times of its weight, is stirred evenly, remaining pre- place is added
Reason rubber powder, cumyl peroxide obtain graft modification rubber powder insulation reaction 3-4 hours at 60-65 DEG C；
（6）Above-mentioned Silica hydrogel is added in cellulose lotion, is stirred evenly, is mixed with above-mentioned graft modification rubber powder, is added and divides
Dissipate lotion, 100-200 revs/min is stirred 30-40 minute, and ethyl alcohol is distilled off, and is mixed with each raw material of residue, stir evenly to get；
The dispersion emulsion is made of the raw material mixing of following weight parts：Lauryl sodium sulfate 3-4, polyacrylamide 2-3,
Deionized water 100-110；It is 6-8 that the phosphate composition, which is by mass ratio,:Aluminium dihydrogen phosphate, the potassium dihydrogen phosphate of 2-3
Mixing composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610337254.1A CN105753415B (en) | 2016-05-21 | 2016-05-21 | A method of preparing cement mortar using waste rubber, bone meal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610337254.1A CN105753415B (en) | 2016-05-21 | 2016-05-21 | A method of preparing cement mortar using waste rubber, bone meal |
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| Publication Number | Publication Date |
|---|---|
| CN105753415A CN105753415A (en) | 2016-07-13 |
| CN105753415B true CN105753415B (en) | 2018-10-26 |
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| CN115108806B (en) * | 2022-05-17 | 2023-08-25 | 西卡德高(广州)企业管理有限公司 | Waterproof protective layer material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1453236A (en) * | 2002-04-23 | 2003-11-05 | 长春市环保技术开发公司 | Process of preparing early strengthened polymer-modified cement mortar |
| CN101805427A (en) * | 2010-04-23 | 2010-08-18 | 华东理工大学 | Method for modifying butyl rubber by maleic anhydride |
| CN102390838A (en) * | 2011-08-22 | 2012-03-28 | 天津晶岭电子材料科技有限公司 | Preparation method of non-spherical silica sol |
| CN102616794B (en) * | 2012-04-11 | 2013-12-25 | 宣城晶瑞新材料有限公司 | Preparation method for high-dispersibility nanometer silicon dioxide |
| CN102674779B (en) * | 2012-06-12 | 2013-09-18 | 北京振利节能环保科技股份有限公司 | Modified expansion water-stop mortar and preparation method thereof |
| CN103420657B (en) * | 2013-08-08 | 2015-05-20 | 安徽省思维新型建材有限公司 | Polyurethane cement mortar and preparation method thereof |
| CN106007437A (en) * | 2014-02-14 | 2016-10-12 | 四川金摩尔环保新材料有限责任公司 | Rubber and cement matrix powder |
| CN104724994A (en) * | 2015-03-19 | 2015-06-24 | 哈尔滨工业大学 | Preparation method of waste rubber powder anti-crack mortar |
| CN105060799A (en) * | 2015-07-14 | 2015-11-18 | 常州市武进翔宇电子元器件有限公司 | Oil-resisting and wear-resisting aerated brick and preparation method thereof |
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Effective date of registration: 20190801 Address after: 213131 Dongshu Village, Benniu Town, Xinbei District, Changzhou City, Jiangsu Province Patentee after: Changzhou Huaguang Building Material Technology Co., Ltd. Address before: 528402 Guangdong province Zhongshan City Shiqi District Fuli Road No. 1 Yongyi garden Yixing Ge 6-403 Patentee before: Xia Baiqing |