CN113754389A - Pumping type impact sound insulation cement-based self-leveling mortar - Google Patents
Pumping type impact sound insulation cement-based self-leveling mortar Download PDFInfo
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- CN113754389A CN113754389A CN202111121463.XA CN202111121463A CN113754389A CN 113754389 A CN113754389 A CN 113754389A CN 202111121463 A CN202111121463 A CN 202111121463A CN 113754389 A CN113754389 A CN 113754389A
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- Prior art keywords
- cement
- sound insulation
- impact sound
- based self
- leveling mortar
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- 239000004568 cement Substances 0.000 title claims abstract description 53
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 45
- 238000009413 insulation Methods 0.000 title claims abstract description 42
- 238000005086 pumping Methods 0.000 title claims abstract description 31
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004576 sand Substances 0.000 claims abstract description 11
- 239000012774 insulation material Substances 0.000 claims abstract description 10
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229920003086 cellulose ether Polymers 0.000 claims abstract description 9
- 229910021487 silica fume Inorganic materials 0.000 claims abstract description 9
- 235000002906 tartaric acid Nutrition 0.000 claims abstract description 9
- 239000011975 tartaric acid Substances 0.000 claims abstract description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000701 coagulant Substances 0.000 claims abstract description 8
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 7
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 7
- 239000010440 gypsum Substances 0.000 claims abstract description 7
- 239000004816 latex Substances 0.000 claims abstract description 7
- 229920000126 latex Polymers 0.000 claims abstract description 7
- 239000011398 Portland cement Substances 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 5
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 5
- 239000000176 sodium gluconate Substances 0.000 claims description 5
- 229940005574 sodium gluconate Drugs 0.000 claims description 5
- 235000012207 sodium gluconate Nutrition 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000001863 hydroxypropyl cellulose Substances 0.000 claims description 2
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 claims description 2
- FEWJPZIEWOKRBE-LWMBPPNESA-N levotartaric acid Chemical compound OC(=O)[C@@H](O)[C@H](O)C(O)=O FEWJPZIEWOKRBE-LWMBPPNESA-N 0.000 claims description 2
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical group [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 2
- 229910052808 lithium carbonate Inorganic materials 0.000 claims description 2
- INHCSSUBVCNVSK-UHFFFAOYSA-L lithium sulfate Inorganic materials [Li+].[Li+].[O-]S([O-])(=O)=O INHCSSUBVCNVSK-UHFFFAOYSA-L 0.000 claims description 2
- YLGXILFCIXHCMC-JHGZEJCSSA-N methyl cellulose Chemical group COC1C(OC)C(OC)C(COC)O[C@H]1O[C@H]1C(OC)C(OC)C(OC)OC1COC YLGXILFCIXHCMC-JHGZEJCSSA-N 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- RBTVSNLYYIMMKS-UHFFFAOYSA-N tert-butyl 3-aminoazetidine-1-carboxylate;hydrochloride Chemical compound Cl.CC(C)(C)OC(=O)N1CC(N)C1 RBTVSNLYYIMMKS-UHFFFAOYSA-N 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 20
- 230000008859 change Effects 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000000740 bleeding effect Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000011545 laboratory measurement Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- JYGQDULZZKKFTG-UHFFFAOYSA-N OS([AlH2])(=O)=O Chemical compound OS([AlH2])(=O)=O JYGQDULZZKKFTG-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000010998 test method Methods 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
- C04B28/06—Aluminous 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/60—Flooring materials
- C04B2111/62—Self-levelling compositions
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to pumping type impact sound insulation cement-based self-leveling mortar which comprises the following components in percentage by mass: 17-26% of ordinary cement, 15-30% of special cement, 5-15% of flexible sound insulation material, 2-5% of silica fume, 2-5% of gypsum, 0.5-1.0% of redispersible latex powder, 0.05-0.1% of cellulose ether, 0.05-0.1% of tartaric acid, 0.03-0.05% of defoaming agent, 0.005-0.01% of air entraining agent, 0.01-0.03% of coagulant, 0.3-0.5% of pumping aid and the balance of sand; the ordinary cement is ordinary portland cement, and the special cement is high-alumina cement or sulpho-alumina cement. The invention has the characteristics of pumpability, high fluidity, high hardening speed, high early strength, high tensile bonding strength, high wear resistance, small volume change rate and difficult cracking, has the function of impact sound insulation, can optimize the ground structure, is convenient and fast to construct, has short construction period, and is suitable for large-area construction floor with higher requirement on flatness and sound insulation requirement.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to pumping type impact sound insulation cement-based self-leveling mortar.
Background
In recent years, along with the development of science and technology and the improvement of the living standard of people, people pay more and more attention to the sound insulation performance of living environment, and the sound insulation mortar has wide prospect in addition to the green reform of the country to buildings. The building sound insulation is divided into air sound insulation and impact sound insulation, and the sound is transmitted in a solid medium with low energy loss, and is faster than the transmission speed in the air medium and is farther away from the solid medium, so that the technical difficulty of the impact sound insulation material is higher.
However, the existing sound insulation mortar is large in construction thickness and poor in flatness, most of the sound insulation mortar needs to be made into a leveling layer and then a facing layer after being leveled again, the construction is complex, the construction period is long, the cost is high, and large-area construction cannot be achieved. The existing self-leveling mortar does not have sound insulation performance, and many self-leveling mortars have poor segregation resistance and weak pressure bleeding capacity, cannot be used for pumping construction, and can only be manually poured after being stirred.
Disclosure of Invention
The invention aims to solve the technical problems of providing impact sound insulation mortar which has relatively small construction thickness, good leveling effect, optimized ground structure, convenient construction and short construction period and can carry out pumping construction, avoiding the characteristic that a plurality of self-leveling mortars cannot be pumped due to weak pressure bleeding capacity, and having the advantages of the sound insulation mortar and the self-leveling mortar.
The technical scheme adopted by the invention for solving the technical problems is as follows: a pumping type impact sound insulation cement-based self-leveling mortar is constructed, and comprises the following components in percentage by mass: 17-26% of ordinary cement, 15-30% of special cement, 5-15% of flexible sound insulation material, 2-5% of silica fume, 2-5% of gypsum, 0.5-1.0% of redispersible latex powder, 0.05-0.1% of cellulose ether, 0.05-0.1% of tartaric acid, 0.03-0.05% of defoaming agent, 0.005-0.01% of air entraining agent, 0.01-0.03% of coagulant, 0.3-0.5% of pumping aid and the balance of sand; the ordinary cement is ordinary portland cement, and the special cement is high-alumina cement or sulpho-alumina cement.
In the scheme, the flexible sound insulation material is recycled rubber particles, and the particle size is 0.15-0.6 mm.
In the scheme, the sand is formed by mixing two particle sizes of 0.15-0.3 mm and 0.3-0.6 mm, and the mass ratio of the sand is 1: 1-1: 2.
In the above scheme, the coagulant is lithium carbonate or lithium sulfate.
In the scheme, the silicon content in the silica fume is more than or equal to 95 percent.
In the above scheme, the cellulose ether is methyl cellulose ether or hydroxypropyl cellulose ether.
In the scheme, the tartaric acid is levotartaric acid.
In the scheme, the pumping agent is composed of a polycarboxylic acid water reducing agent, sodium gluconate and montmorillonite powder in a mass ratio of 10:1: 30-10: 1: 50.
In the scheme, the ordinary cement is marked as P.O.42.5.
In the scheme, the special cement is marked as CA 50.
The pumping type impact sound insulation cement-based self-leveling mortar has the following beneficial effects:
1. the invention has the advantages of sound insulation mortar and self-leveling mortar, and can be used for pumping construction. The common cement, the special cement and the gypsum bond the flexible material and the sand, and the mortar has strength and certain bonding performance after being hardened. The flexible sound insulation material enables the mortar to have excellent sound insulation performance, and impact sound can be isolated after the product is used on the ground. The silica fume improves the compactness of the mortar, improves the bleeding condition, and improves the strength, thereby being beneficial to the pumping of the mortar. The redispersible latex powder improves the cohesion of mortar and improves the bonding strength of products. The cellulose ether improves the water retention property of the mortar and is beneficial to pumping construction. Tartaric acid and the coagulant improve the setting time of the mortar, are beneficial to quick hardening and improve the early strength. The defoaming agent and the air entraining agent are supplemented with the pumping agent with innovativeness, the construction performance of the mortar is improved, the mortar can be kept without segregation under the action of pumping pressure, the wrapping performance is good, the pump is not blocked, and the convenience and the efficiency of construction are greatly improved.
2. The single-component mortar is prepared by adding water and stirring according to a certain proportion, has the characteristics of leveling property, strong anti-segregation capability and pumpable construction performance, can be constructed according to the construction mode of cement-based self-leveling mortar, has short construction period, saves labor cost and is convenient and fast to construct, and is suitable for large-area construction floor with higher requirement on flatness and sound insulation requirement.
3. The invention has the characteristics of pumpability, high fluidity, high hardening speed, high early strength, high tensile bonding strength, high wear resistance, small volume change rate and difficult cracking, and has the function of impact sound insulation.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, specific embodiments of the present invention will now be described in detail.
Example 1:
the invention provides pumping type impact sound insulation cement-based self-leveling mortar which comprises the following components in percentage by mass: 20% of ordinary cement, 20% of high-alumina cement, 10% of flexible sound insulation material, 4% of silica fume, 2% of gypsum, 1% of redispersible latex powder, 0.05% of cellulose ether, 0.05% of tartaric acid, 0.03% of defoaming agent, 0.005% of air entraining agent, 0.01% of coagulant, 0.5% of pumping agent and the balance of sand.
Further, the pumping agent is composed of a polycarboxylic acid water reducing agent, sodium gluconate and montmorillonite powder in a mass ratio of 10:1: 30.
Example 2:
the invention provides pumping type impact sound insulation cement-based self-leveling mortar which comprises the following components in percentage by mass: 25% of ordinary cement, 15% of high-alumina cement, 10% of flexible sound insulation material, 4% of silica fume, 3% of gypsum, 1% of redispersible latex powder, 0.05% of cellulose ether, 0.05% of tartaric acid, 0.03% of defoaming agent, 0.005% of air entraining agent, 0.01% of coagulant, 0.5% of pumping agent and the balance of sand.
Further, the pumping agent is composed of a polycarboxylic acid water reducing agent, sodium gluconate and montmorillonite powder in a mass ratio of 10:1: 30.
Example 3:
the invention provides pumping type impact sound insulation cement-based self-leveling mortar which comprises the following components in percentage by mass: 15% of ordinary cement, 25% of sulpho-aluminum cement, 10% of flexible sound insulation material, 4% of silica fume, 3% of gypsum, 1% of redispersible latex powder, 0.05% of cellulose ether, 0.05% of tartaric acid, 0.03% of defoaming agent, 0.005% of air entraining agent, 0.01% of coagulant, 0.5% of pumping agent and the balance of sand.
Further, the pumping agent is composed of a polycarboxylic acid water reducing agent, sodium gluconate and montmorillonite powder in a mass ratio of 10:1: 30.
The part 8 of the pumped impact sound insulation cement-based self-leveling mortar obtained in the embodiments 1 to 3 of the invention is measured according to the standard JC/T985-2017 ground cement-based self-leveling mortar and GB/T19889.8-2005 acoustic building and building member sound insulation: the test results of laboratory measurement of the impact sound improvement amount of the heavy standard floor covering layer and the test method of GB/T50121-2005 building sound insulation evaluation standard are shown in Table 1.
Table 1 test results of products of examples 1 to 3
As can be seen from the detection results in Table 1, the detection results of the products in the examples 1 to 3 basically meet the requirements of JC/T985-2017 on the cushion cement-based self-leveling mortar in Cement-based self-leveling mortar for the ground; part 8 of Acoustic building and construction Member Acoustic measurement according to GB/T19889.8-2005: laboratory measurement of the impact sound improvement amount of the covering layer of the heavy standard floor and GB/T50121-2005 building sound insulation evaluation standard are used for detecting and weighting normalized impact sound pressure level detection and impact sound improvement amount, and detection results meet the primary requirement of impact sound insulation performance classification in GB/T50121-2005 building sound insulation evaluation standard and meet the requirement that the impact sound pressure level of civil building division floor weighting normalized impact sound is less than 75dB in GB 50118 + 2010 civil building sound insulation design standard.
While the present invention has been described with reference to the above embodiments, the present invention is not limited to the above embodiments, which are only illustrative and not restrictive, and those skilled in the art can make various modifications without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (10)
1. The pumping type impact sound insulation cement-based self-leveling mortar is characterized by comprising the following components in percentage by mass: 17-26% of ordinary cement, 15-30% of special cement, 5-15% of flexible sound insulation material, 2-5% of silica fume, 2-5% of gypsum, 0.5-1.0% of redispersible latex powder, 0.05-0.1% of cellulose ether, 0.05-0.1% of tartaric acid, 0.03-0.05% of defoaming agent, 0.005-0.01% of air entraining agent, 0.01-0.03% of coagulant, 0.3-0.5% of pumping aid and the balance of sand; the ordinary cement is ordinary portland cement, and the special cement is high-alumina cement or sulpho-alumina cement.
2. The pumped impact sound insulation cement-based self-leveling mortar according to claim 1, wherein the flexible sound insulation material is recycled rubber particles having a particle size of 0.15mm to 0.6 mm.
3. The pumping type impact sound and sound insulation cement-based self-leveling mortar according to claim 1, wherein the sand is formed by mixing two particle sizes of 0.15-0.3 mm and 0.3-0.6 mm, and the mass ratio of the sand is 1: 1-1: 2.
4. The pumped impact sound insulation cement based self-leveling mortar of claim 1, wherein the accelerator is lithium carbonate or lithium sulfate.
5. The pumping type impact sound insulation cement-based self-leveling mortar according to claim 1, wherein the silicon content in the silica fume is not less than 95%.
6. The pumped impact sound insulation cement-based self-leveling mortar of claim 1, wherein the cellulose ether is a methyl cellulose ether or a hydroxypropyl cellulose ether.
7. The pumped impact sound insulation cement-based self-leveling mortar of claim 1, wherein the tartaric acid is levotartaric acid.
8. The pumping type impact sound insulation cement-based self-leveling mortar according to claim 1, wherein the pumping agent is composed of a polycarboxylic acid water reducing agent, sodium gluconate and montmorillonite powder in a mass ratio of 10:1: 30-10: 1: 50.
9. The pumped impact sound insulation cement-based self-leveling mortar according to claim 1, wherein the portland cement is designated by the reference numeral p.o.42.5.
10. The pumped impact sound insulation cement based self-leveling mortar of claim 1, wherein the special cement is designated as CA 50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111121463.XA CN113754389A (en) | 2021-09-24 | 2021-09-24 | Pumping type impact sound insulation cement-based self-leveling mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111121463.XA CN113754389A (en) | 2021-09-24 | 2021-09-24 | Pumping type impact sound insulation cement-based self-leveling mortar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113754389A true CN113754389A (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111121463.XA Pending CN113754389A (en) | 2021-09-24 | 2021-09-24 | Pumping type impact sound insulation cement-based self-leveling mortar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115010429A (en) * | 2022-05-31 | 2022-09-06 | 同济大学 | Mortar material suitable for robot brick laying and preparation method thereof |
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2021
- 2021-09-24 CN CN202111121463.XA patent/CN113754389A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115010429A (en) * | 2022-05-31 | 2022-09-06 | 同济大学 | Mortar material suitable for robot brick laying and preparation method thereof |
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Application publication date: 20211207 |