CN113213876A - Lightweight overlay gypsum building material and preparation method thereof - Google Patents
Lightweight overlay gypsum building material and preparation method thereof Download PDFInfo
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- CN113213876A CN113213876A CN202110596793.8A CN202110596793A CN113213876A CN 113213876 A CN113213876 A CN 113213876A CN 202110596793 A CN202110596793 A CN 202110596793A CN 113213876 A CN113213876 A CN 113213876A
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- gypsum
- parts
- building material
- retarder
- overlay
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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
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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- 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 discloses a lightweight overlay gypsum building material, which relates to the technical field of building materials and comprises the following raw materials in parts by weight: 1100 parts of gypsum 900-containing material, 60-80 parts of perlite, 4-6 parts of ash calcium, 1.5-2 parts of hydroxypropyl methyl cellulose, 0.4-0.6 part of special lubricant for gypsum and 0.1-2 parts of retarder. The invention also discloses a preparation method of the light overlay gypsum building material. The light cover gypsum replaces putty powder, so that the raw material cost is lower, the batch scraping color is more uniform, the volume density of the light cover gypsum is relatively lower, the strength is higher, the wall can be better protected, the falling-off condition is not easy to occur, and the effect is better.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a lightweight overlay gypsum building material and a preparation method thereof.
Background
The putty coating is to coat the putty on the wall to ensure the wall surface to be smooth, and then to polish the wall surface to be smooth by sand paper after drying. The putty coating removes uneven parts on the surface of a base layer in a filling or integral processing mode, keeps the wall surface smooth and flat, and is the most important step in the base layer processing. The putty (filling mud) is a decorative setting material for leveling the surface of a wall body, is thick paste paint and is an essential product before painting. The putty is applied to the primer or directly to the object to remove high and low unevenness defects on the surface of the object to be coated, to fill in the partially depressed work surface, or to scrape off the entire surface, usually after the primer layer has dried through, to apply the putty to the surface of the primer layer.
Putty scraping is a common method for the existing interior wall decoration, is widely applied, but has the disadvantages of relatively high raw material cost, easily nonuniform batch scraping color, relatively high volume density and low strength of putty materials, and easily cracks and falls off after long-term use.
Disclosure of Invention
The invention aims to provide a lightweight overlay gypsum building material to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a light overlay gypsum building material comprises the following raw materials in parts by weight: the feed comprises the following raw materials in parts by weight: 1100 parts of gypsum 900-containing material, 60-80 parts of perlite, 4-6 parts of ash calcium, 1.5-2 parts of hydroxypropyl methyl cellulose, 0.4-0.6 part of special lubricant for gypsum and 0.1-2 parts of retarder.
As a further scheme of the invention: the feed comprises the following raw materials in parts by weight: 1050 parts of 950-adulterated gypsum, 65-75 parts of perlite, 4.5-5.5 parts of ash calcium, 1.6-1.8 parts of hydroxypropyl methyl cellulose, 0.4-0.5 part of special lubricant for gypsum and 0.2-0.7 part of retarder.
As a still further scheme of the invention: the feed comprises the following raw materials in parts by weight: 1000 parts of gypsum, 70 parts of perlite, 5 parts of ash calcium, 1.7 parts of hydroxypropyl methyl cellulose, 0.5 part of a special lubricant for gypsum and 0.4 part of a retarder.
As a still further scheme of the invention: the special lubricant for gypsum is at least one of pentaerythritol and magnesium lauryl sulfate.
As a still further scheme of the invention: the retarder is a mixture of layered crystal sodium disilicate and sodium fluosilicate.
As a still further scheme of the invention: the mixture of the layered crystal sodium disilicate and the sodium fluosilicate in the retarder has a ratio of 1-3: 1.
The preparation method of the light overlay gypsum building material comprises the following steps:
1) uniformly mixing hydroxypropyl methyl cellulose, a special gypsum lubricant and a retarder to obtain a mixed additive;
2) crushing gypsum, perlite and calcium carbonate, and then uniformly mixing with the mixed additive obtained in the step 1) to obtain a dry mixed material;
3) and (3) adding a proper amount of water into the dry mixed material obtained in the step 2) on a construction site to ensure that the consistency is in the range of 60-80mm, thus obtaining the usable light overlay gypsum.
Compared with the prior art, the invention has the beneficial effects that:
the light cover gypsum replaces putty powder, so that the raw material cost is lower, the batch scraping color is more uniform, the volume density of the light cover gypsum is relatively lower, the strength is higher, the wall can be better protected, the falling-off condition is not easy to occur, and the effect is better.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A light overlay gypsum building material comprises the following raw materials in parts by weight: 900 parts of gypsum, 60 parts of perlite, 4 parts of ash calcium, 1.5 parts of hydroxypropyl methyl cellulose, 0.4 part of a special lubricant for gypsum and 0.1 part of a retarder.
Wherein the special lubricant for gypsum is pentaerythritol.
Wherein the retarder is a mixture of layered crystal sodium disilicate and sodium fluosilicate.
Wherein the mixture of the layered crystal sodium disilicate and the sodium fluosilicate in the retarder has a ratio of 1: 1.
The preparation method of the light overlay gypsum building material comprises the following steps:
1) uniformly mixing hydroxypropyl methyl cellulose, a special gypsum lubricant and a retarder to obtain a mixed additive;
2) crushing gypsum, perlite and calcium carbonate, and then uniformly mixing with the mixed additive obtained in the step 1) to obtain a dry mixed material;
3) and (3) adding a proper amount of water into the dry mixed material obtained in the step 2) on a construction site to ensure that the consistency is 60mm, thus obtaining the usable light overlay gypsum.
Compared with the prior art, the invention has the beneficial effects that:
example 2
A light overlay gypsum building material comprises the following raw materials in parts by weight: 950 parts of gypsum, 65 parts of perlite, 4.5 parts of ash calcium, 1.8 parts of hydroxypropyl methyl cellulose, 0.5 part of a special lubricant for gypsum and 0.7 part of a retarder.
Wherein, the special lubricant for gypsum is a mixture of pentaerythritol and magnesium lauryl sulfate.
Wherein the retarder is a mixture of layered crystal sodium disilicate and sodium fluosilicate.
Wherein the mixture of the layered crystal sodium disilicate and the sodium fluosilicate in the retarder has a ratio of 2: 1.
The preparation method of the light overlay gypsum building material comprises the following steps:
1) uniformly mixing hydroxypropyl methyl cellulose, a special gypsum lubricant and a retarder to obtain a mixed additive;
2) crushing gypsum, perlite and calcium carbonate, and then uniformly mixing with the mixed additive obtained in the step 1) to obtain a dry mixed material;
3) and (3) adding a proper amount of water into the dry mixed material obtained in the step 2) at a construction site to ensure that the consistency is 65mm, thus obtaining the usable light overlay gypsum.
Example 3
A light overlay gypsum building material comprises the following raw materials in parts by weight: 1000 parts of gypsum, 70 parts of perlite, 5 parts of ash calcium, 1.7 parts of hydroxypropyl methyl cellulose, 0.5 part of a special lubricant for gypsum and 0.4 part of a retarder.
Wherein the special lubricant for gypsum is pentaerythritol.
Wherein the retarder is a mixture of layered crystal sodium disilicate and sodium fluosilicate.
Wherein the mixture of the layered crystal sodium disilicate and the sodium fluosilicate in the retarder has a ratio of 2: 1.
The preparation method of the light overlay gypsum building material comprises the following steps:
1) uniformly mixing hydroxypropyl methyl cellulose, a special gypsum lubricant and a retarder to obtain a mixed additive;
2) crushing gypsum, perlite and calcium carbonate, and then uniformly mixing with the mixed additive obtained in the step 1) to obtain a dry mixed material;
3) and (3) adding a proper amount of water into the dry mixed material obtained in the step 2) at a construction site to ensure that the consistency is 70mm, thus obtaining the usable light overlay gypsum.
Example 4
A light overlay gypsum building material comprises the following raw materials in parts by weight: 1050 parts of gypsum, 75 parts of perlite, 5.5 parts of ash calcium, 1.6 parts of hydroxypropyl methyl cellulose, 0.4 part of a special lubricant for gypsum and 0.2 part of a retarder.
Wherein the special lubricant for gypsum is magnesium lauryl sulfate.
Wherein the retarder is a mixture of layered crystal sodium disilicate and sodium fluosilicate.
Wherein the mixture of the layered crystal sodium disilicate and the sodium fluosilicate in the retarder has a ratio of 2: 1.
The preparation method of the light overlay gypsum building material comprises the following steps:
1) uniformly mixing hydroxypropyl methyl cellulose, a special gypsum lubricant and a retarder to obtain a mixed additive;
2) crushing gypsum, perlite and calcium carbonate, and then uniformly mixing with the mixed additive obtained in the step 1) to obtain a dry mixed material;
3) and (3) adding a proper amount of water into the dry mixed material obtained in the step 2) at a construction site to ensure that the consistency is 70mm, thus obtaining the usable light overlay gypsum.
Example 5
A light overlay gypsum building material comprises the following raw materials in parts by weight: 1100 parts of gypsum, 80 parts of perlite, 6 parts of ash calcium, 2 parts of hydroxypropyl methyl cellulose, 0.6 part of a special lubricant for gypsum and 2 parts of a retarder.
Wherein the special lubricant for gypsum is magnesium lauryl sulfate.
Wherein the retarder is a mixture of layered crystal sodium disilicate and sodium fluosilicate.
Wherein the mixture of the layered crystal sodium disilicate and the sodium fluosilicate in the retarder has a ratio of 3: 1.
The preparation method of the light overlay gypsum building material comprises the following steps:
1) uniformly mixing hydroxypropyl methyl cellulose, a special gypsum lubricant and a retarder to obtain a mixed additive;
2) crushing gypsum, perlite and calcium carbonate, and then uniformly mixing with the mixed additive obtained in the step 1) to obtain a dry mixed material;
3) and (3) adding a proper amount of water into the dry mixed material obtained in the step 2) on a construction site to ensure that the consistency is 80mm, thus obtaining the usable light overlay gypsum.
The lightweight overlay gypsum building material prepared in example 3 was subjected to performance testing, and the results of the testing were compared with those of a conventional putty material, as shown in Table 1.
TABLE 1
From the results, the detection results of the light overlay gypsum prepared by the formula of the invention in the aspects of bonding strength and volume density exceed those of putty, and the light overlay gypsum is not easy to fall off when used as a wall surface protective layer and has better protective effect.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The lightweight overlay gypsum building material is characterized by comprising the following raw materials in parts by weight: 1100 parts of gypsum 900-containing material, 60-80 parts of perlite, 4-6 parts of ash calcium, 1.5-2 parts of hydroxypropyl methyl cellulose, 0.4-0.6 part of special lubricant for gypsum and 0.1-2 parts of retarder.
2. The lightweight overlay gypsum building material of claim 1, comprising the following raw materials in parts by weight: 1050 parts of 950-adulterated gypsum, 65-75 parts of perlite, 4.5-5.5 parts of ash calcium, 1.6-1.8 parts of hydroxypropyl methyl cellulose, 0.4-0.5 part of special lubricant for gypsum and 0.2-0.7 part of retarder.
3. The lightweight overlay gypsum building material of claim 2, comprising the following raw materials in parts by weight: 1000 parts of gypsum, 70 parts of perlite, 5 parts of ash calcium, 1.7 parts of hydroxypropyl methyl cellulose, 0.5 part of a special lubricant for gypsum and 0.4 part of a retarder.
4. The lightweight faced gypsum building material of claim 1, wherein said gypsum specific lubricant is at least one of pentaerythritol and magnesium lauryl sulfate.
5. The lightweight faced gypsum building material of claim 1, wherein said set retarder is a mixture of layered crystalline sodium disilicate and sodium fluorosilicate.
6. The lightweight overlay gypsum building material of claim 5, wherein the retarder comprises a mixture of layered crystalline sodium disilicate and sodium fluorosilicate in a ratio of 1-3: 1.
7. A method of making a lightweight overlay gypsum building material according to any of claims 1 to 6, comprising the steps of:
1) uniformly mixing hydroxypropyl methyl cellulose, a special gypsum lubricant and a retarder to obtain a mixed additive;
2) crushing gypsum, perlite and calcium carbonate, and then uniformly mixing with the mixed additive obtained in the step 1) to obtain a dry mixed material;
3) and (3) adding a proper amount of water into the dry mixed material obtained in the step 2) on a construction site to ensure that the consistency is in the range of 60-80mm, thus obtaining the usable light overlay gypsum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110596793.8A CN113213876A (en) | 2021-05-31 | 2021-05-31 | Lightweight overlay gypsum building material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110596793.8A CN113213876A (en) | 2021-05-31 | 2021-05-31 | Lightweight overlay gypsum building material and preparation method thereof |
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| CN113213876A true CN113213876A (en) | 2021-08-06 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107936671A (en) * | 2017-12-27 | 2018-04-20 | 北京宝辰联合科技股份有限公司 | A kind of gypsum base putty |
| CN108083753A (en) * | 2018-01-12 | 2018-05-29 | 深圳摩盾环保新材料有限公司 | A kind of gypsum base is without sand mold machine spray lightweight plastering material and preparation method thereof |
| EP3854762A1 (en) * | 2020-01-21 | 2021-07-28 | SE Tylose GmbH & Co.KG | Composition comprising a hydraulic binder and a cellulose ether |
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2021
- 2021-05-31 CN CN202110596793.8A patent/CN113213876A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107936671A (en) * | 2017-12-27 | 2018-04-20 | 北京宝辰联合科技股份有限公司 | A kind of gypsum base putty |
| CN108083753A (en) * | 2018-01-12 | 2018-05-29 | 深圳摩盾环保新材料有限公司 | A kind of gypsum base is without sand mold machine spray lightweight plastering material and preparation method thereof |
| EP3854762A1 (en) * | 2020-01-21 | 2021-07-28 | SE Tylose GmbH & Co.KG | Composition comprising a hydraulic binder and a cellulose ether |
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Application publication date: 20210806 |
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