CN111995348A - Ternary system foaming leveling mortar - Google Patents
Ternary system foaming leveling mortar Download PDFInfo
- Publication number
- CN111995348A CN111995348A CN202010995620.9A CN202010995620A CN111995348A CN 111995348 A CN111995348 A CN 111995348A CN 202010995620 A CN202010995620 A CN 202010995620A CN 111995348 A CN111995348 A CN 111995348A
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- CN
- China
- Prior art keywords
- ternary system
- leveling mortar
- system foaming
- parts
- following components
- 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.)
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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
- C04B28/14—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 calcium sulfate cements
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- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/386—Carbon
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- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
Abstract
The invention provides ternary system foaming leveling mortar which comprises the following components in parts by weight: 15-20 parts of cement; 5-10 parts of ash calcium; 70-80 parts of gypsum; 0.5-1 part of plasticizer; 4-5 parts of an expanding agent; 0.5-1 part of carbon fiber; 38-60 parts of aggregate. The ternary system foaming leveling mortar disclosed by the invention can form dry-mixed mortar with low shrinkage rate, is high in impact strength and not easy to crack, shortens the setting time and greatly improves the construction speed.
Description
Technical Field
The invention belongs to the field of building cement mortar, and particularly relates to ternary system foaming leveling mortar.
Background
The main components of common premixed cement mortar are cement and sand, so that shrinkage in a thick-layer product is poor to control, the shrinkage rate can reach 0.2%, cracking is very common, and hollowing is sometimes caused under the more serious condition. And the usage amount of the material per square meter is up to 2kg/1mm, and the material belongs to high-consumption materials. More importantly, the setting time needs at least 24h after construction, and the influence on the working hours is very large.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the ternary system foaming leveling mortar which can form dry-mixed mortar with low shrinkage rate, shorten the setting time and greatly improve the construction speed.
The invention provides ternary system foaming leveling mortar which comprises the following components in parts by weight:
as a further scheme of the invention, the expanding agent comprises the following components in percentage by mass: 93-95% of calcium sulphoaluminate-calcium oxide composite expanding agent, 3-5% of expanded graphite powder and 1.8-3.2% of hydroxycarboxylic acid or hydroxycarboxylic carboxylate.
As a further aspect of the present invention, the hydroxycarboxylic acid or salt thereof includes one, two or more of tartaric acid, heptonate, sodium gluconate and sodium alginate.
As a further scheme of the invention, the plasticizer comprises the following components in percentage by mass: 20-40% of hydroxymethyl cellulose ether and 60-80% of modified tea saponin.
As a further scheme of the invention, the aggregate is river sand which is prepared by grading at least three different particle sizes, and the particle size range of the river sand is 10-120 meshes.
As a further aspect of the invention, the cement is portland cement.
The invention has the beneficial effects that:
1. the leveling mortar comprises lime calcium, cement and gypsum, and through proper proportion, the gypsum can compensate the shrinkage of the cement, so that dry-mixed mortar with low shrinkage rate can be formed, the impact strength is high, and the requirement of large-area construction on stability is met. And the setting time is shortened, and the construction speed can be greatly improved.
2. The invention adds the expanding agent, and the expanding agent comprises the following components in percentage by mass: 93-95% of calcium sulphoaluminate-calcium oxide composite expanding agent, 3-5% of expanded graphite powder and 1.8-3.2% of hydroxycarboxylic acid or hydroxycarboxylic carboxylate. The expanding agent has high expansion performance and durability, can compensate the early shrinkage of mortar, and can also compensate the later-stage dry shrinkage of mortar.
3. The invention adds a plasticizer which comprises the following components in percentage by mass: 20-40% of hydroxymethyl cellulose ether and 60-80% of modified tea saponin. The hydroxymethyl cellulose ether has strong mortar binding power, fixes the early state, provides help for the forming state, obviously improves the durability compared with the common mortar, has stable later strength, and can overcome the phenomena of crust formation, cracking and the like. The tea saponin has stable foam, and the modified tea saponin is modified by the foam enhancer to increase the foam amount, thereby obviously improving the workability and improving the work efficiency.
4. The leveling mortar provided by the invention is added with the carbon fiber, so that the shrinkage deformation stress can be reduced, the flexibility is improved, and the shock cracking resistance is further improved.
5. The river sand graded by the invention can improve the strength of the mortar, improve the compactness and reduce the shrinkage rate.
6. The invention can be applied to large-area ground leveling, has good single construction state, can carry out single construction for 50-70mm, and can well bear subsequent construction due to quick solidification. In addition, construction is convenient: only needs to use a designated mixer, a small amount of personnel can construct in a large area without worrying about the common problems of hollowing, cracking and the like.
Detailed Description
The scheme of the application is further described below with reference to specific examples:
example 1
The ternary system foaming leveling mortar comprises the following components in parts by weight:
the expanding agent comprises the following components in percentage by mass: 93 percent of calcium sulphoaluminate-calcium oxide composite expanding agent, 4 percent of expanded graphite powder and 3 percent of sodium gluconate.
The plasticizer comprises the following components in percentage by mass: 30 percent of hydroxymethyl cellulose ether and 70 percent of modified tea saponin.
The aggregate is river sand which is prepared by grading at least three different particle sizes, and the particle size range of the river sand is 10-120 meshes.
Example 2
The ternary system foaming leveling mortar comprises the following components in parts by weight:
the expanding agent comprises the following components in percentage by mass: 94 percent of calcium sulphoaluminate-calcium oxide composite expanding agent, 3 percent of expanded graphite powder and 3 percent of tartaric acid.
The plasticizer comprises the following components in percentage by mass: 30 percent of hydroxymethyl cellulose ether and 70 percent of modified tea saponin.
The aggregate is river sand which is prepared by grading at least three different particle sizes, and the particle size range of the river sand is 10-120 meshes.
Example 3
The ternary system foaming leveling mortar comprises the following components in parts by weight:
the expanding agent comprises the following components in percentage by mass: 95 percent of calcium sulphoaluminate-calcium oxide composite expanding agent, 3 percent of expanded graphite powder, 1 percent of sodium gluconate and 1 percent of sodium alginate.
The plasticizer comprises the following components in percentage by mass: 30 percent of hydroxymethyl cellulose ether and 70 percent of modified tea saponin.
The aggregate is river sand which is prepared by grading at least three different particle sizes, and the particle size range of the river sand is 10-120 meshes.
The performance tests of the ternary system foaming leveling mortar of examples 1 to 3 showed the following results:
the above preferred embodiments should be considered as examples of the embodiments of the present application, and technical deductions, substitutions, improvements and the like similar to, similar to or based on the embodiments of the present application should be considered as the protection scope of the present patent.
Claims (6)
1. The ternary system foaming leveling mortar is characterized by comprising the following components in parts by weight:
2. the ternary system foaming leveling mortar of claim 1, wherein the expanding agent comprises the following components in percentage by mass: 93-95% of calcium sulphoaluminate-calcium oxide composite expanding agent, 3-5% of expanded graphite powder and 1.8-3.2% of hydroxycarboxylic acid or hydroxycarboxylic carboxylate.
3. The ternary system foaming leveling mortar of claim 2, wherein the hydroxycarboxylic acid or salt thereof comprises one, two or more of tartaric acid, heptonate, sodium gluconate and sodium alginate.
4. The ternary system foaming leveling mortar of claim 1, wherein the plasticizer comprises the following components in percentage by mass: 20-40% of hydroxymethyl cellulose ether and 60-80% of modified tea saponin.
5. The ternary system foaming leveling mortar of claim 1, wherein the aggregate is river sand, and the river sand is prepared by grading at least three different particle sizes, and the particle size range of the river sand is 10-120 meshes.
6. The ternary system foamed leveling mortar according to claim 1, wherein the cement is portland cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010995620.9A CN111995348A (en) | 2020-09-21 | 2020-09-21 | Ternary system foaming leveling mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010995620.9A CN111995348A (en) | 2020-09-21 | 2020-09-21 | Ternary system foaming leveling mortar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111995348A true CN111995348A (en) | 2020-11-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010995620.9A Pending CN111995348A (en) | 2020-09-21 | 2020-09-21 | Ternary system foaming leveling mortar |
Country Status (1)
| Country | Link |
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| CN (1) | CN111995348A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107586088A (en) * | 2017-09-29 | 2018-01-16 | 江苏夫科技股份有限公司 | A kind of warm-land cushion course gypsum based self-leveling mortar and preparation method with thermal and insulating performance |
| CN107698219A (en) * | 2017-08-22 | 2018-02-16 | 苏州赛璐泰科化工有限公司 | A kind of thick-layer gravity flowing levelling mortar |
| CN111333395A (en) * | 2020-02-28 | 2020-06-26 | 贵州大学 | High-strength and water-resistant phosphogypsum-based composite cementing material and preparation method thereof |
-
2020
- 2020-09-21 CN CN202010995620.9A patent/CN111995348A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107698219A (en) * | 2017-08-22 | 2018-02-16 | 苏州赛璐泰科化工有限公司 | A kind of thick-layer gravity flowing levelling mortar |
| CN107586088A (en) * | 2017-09-29 | 2018-01-16 | 江苏夫科技股份有限公司 | A kind of warm-land cushion course gypsum based self-leveling mortar and preparation method with thermal and insulating performance |
| CN111333395A (en) * | 2020-02-28 | 2020-06-26 | 贵州大学 | High-strength and water-resistant phosphogypsum-based composite cementing material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 张兰芳: "《碱激发矿渣水泥和混凝土》", 31 August 2018, 西南交通大学出版社 * |
| 林文虎等: "《混凝土结构工程施工手册》", 30 September 1999, 中国建筑工业出版社 * |
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