CN111777392A - Preparation method of water-resistant gypsum mortar - Google Patents
Preparation method of water-resistant gypsum mortar Download PDFInfo
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- CN111777392A CN111777392A CN202010583206.7A CN202010583206A CN111777392A CN 111777392 A CN111777392 A CN 111777392A CN 202010583206 A CN202010583206 A CN 202010583206A CN 111777392 A CN111777392 A CN 111777392A
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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
- 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
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/22—Glass ; Devitrified glass
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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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/06—Oxides, Hydroxides
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent 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
- C04B2111/52—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
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to the technical field of building materials, in particular to a preparation method of water-resistant gypsum mortar. According to the preparation method of the water-resistant gypsum mortar, the strength and the water resistance of the gypsum mortar are improved through the chemical reaction and the physical action of the silicon dioxide and the water repellent; the addition of the vitrified micro bubbles improves the heat preservation and insulation performance of the gypsum mortar, reduces noise transmission and increases the sound insulation effect.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a preparation method of water-resistant gypsum mortar.
Background
The mortar is a bonding substance used for building bricks on buildings, is formed by adding water into sand and cementing materials according to a certain proportion, is also called mortar and is also used as mortar, and the mortar is commonly used as cement mortar, mixed mortar lime mortar and clay mortar. Most of the existing gypsum mortar is not water-resistant, has larger limitation when in use, and has a small number of gypsum mortars added with superior waterproof materials, but the mortar forms a layer of water-resistant film on the surface of the mortar, the water resistance of the mortar is gradually weakened along with the time, and the waterproof performance is poor.
Disclosure of Invention
In order to overcome the defect of poor water resistance of the existing gypsum mortar, the invention provides a preparation method of the water-resistant gypsum mortar, which selects gypsum powder, vitrified micro bubbles, cement, a retarder, a water-retaining agent, a lubricant, a stabilizer, an air entraining agent, a water reducing agent, silicon dioxide, a water repellent, slag, steel slag and gypsum whiskers, and sequentially carries out the steps of primary stirring I, primary stirring II, mixing stirring and packaging to prepare the water-resistant gypsum mortar.
The technical scheme adopted by the invention for solving the technical problems is as follows: a preparation method of water-resistant gypsum mortar comprises the following steps: a. selecting materials: gypsum powder, vitrified micro bubbles, cement, a retarder, a water-retaining agent, a lubricant, a stabilizer, an air-entraining agent, a water-reducing agent, silicon dioxide, a water repellent, slag, steel slag and gypsum whiskers;
b. proportioning: selecting 800 parts of gypsum powder, 80 parts of vitrified micro bubbles, 60 parts of cement, 3 parts of retarder, 3 parts of water-retaining agent, 3 parts of lubricant, 2 parts of stabilizer, 2 parts of air-entraining agent, 2 parts of water-reducing agent, 8 parts of silicon dioxide, 3 parts of water repellent, 15 parts of slag, 10 parts of steel slag and 20 parts of gypsum whisker;
c. primary stirring: taking 800 parts of gypsum powder and 80 parts of vitrified micro bubbles, adding a proper amount of water, and uniformly stirring by using a stirrer;
d. and (2) preliminary stirring: uniformly stirring 60 parts of cement, 3 parts of retarder, 3 parts of water-retaining agent, 3 parts of lubricant, 2 parts of stabilizer, 2 parts of air-entraining agent, 2 parts of water-reducing agent, 8 parts of silicon dioxide, 3 parts of water repellent, 15 parts of slag, 10 parts of steel slag and 20 parts of gypsum whisker by a stirrer;
e. mixing and stirring: c, mixing and stirring the mixture obtained in the step c and the step d again until the mixture is uniformly stirred;
f. packaging: and conveying the uniformly stirred raw materials into a finished product bin, and packaging by a packaging machine.
Further, the mixing time of the gypsum powder and the vitrified micro bubbles in the step c is 30-40 min.
Further, the method comprises the step d of mixing cement, a retarder, a water-retaining agent, a lubricant, a stabilizer, an air-entraining agent, a water-reducing agent, silicon dioxide, a water repellent, slag, steel slag and gypsum whiskers for 15-20 min.
Further, the water reducing agent is dicyandiamide SM-1013, the slag is S95 slag powder, and the cement is ordinary silica 42.5 cement.
Further, the water retaining agent is methyl cellulose ether, bentonite or a mixture of methyl cellulose ether and bentonite according to the mass ratio of 1: 20.
The preparation method of the water-resistant gypsum mortar has the beneficial effects that after the chemical reaction and the physical action of the silicon dioxide and the water repellent, the strength and the water resistance of the gypsum mortar are improved; the addition of the vitrified micro bubbles improves the heat preservation and insulation performance of the gypsum mortar, reduces noise transmission, increases the sound insulation effect, and has proper slurry condensation time, large fluidity and good water retention rate.
Detailed Description
A preparation method of water-resistant gypsum mortar comprises the following steps: a. selecting materials: gypsum powder, vitrified micro bubbles, cement, a retarder, a water-retaining agent, a lubricant, a stabilizer, an air-entraining agent, a water-reducing agent, silicon dioxide, a water repellent, slag, steel slag and gypsum whiskers; b. proportioning: selecting 800 parts of gypsum powder, 80 parts of vitrified micro bubbles, 60 parts of cement, 3 parts of retarder, 3 parts of water-retaining agent, 3 parts of lubricant, 2 parts of stabilizer, 2 parts of air-entraining agent, 2 parts of water-reducing agent, 8 parts of silicon dioxide, 3 parts of water repellent, 15 parts of slag, 10 parts of steel slag and 20 parts of gypsum whisker; c. primary stirring: taking 800 parts of gypsum powder and 80 parts of vitrified micro bubbles, adding a proper amount of water, and uniformly stirring by using a stirrer; d. and (2) preliminary stirring: uniformly stirring 60 parts of cement, 3 parts of retarder, 3 parts of water-retaining agent, 3 parts of lubricant, 2 parts of stabilizer, 2 parts of air-entraining agent, 2 parts of water-reducing agent, 8 parts of silicon dioxide, 3 parts of water repellent, 15 parts of slag, 10 parts of steel slag and 20 parts of gypsum whisker by a stirrer; e. mixing and stirring: c, mixing and stirring the mixture obtained in the step c and the step d again until the mixture is uniformly stirred; f. packaging: and conveying the uniformly stirred raw materials into a finished product bin, and packaging by a packaging machine.
The first embodiment is as follows:
a. selecting materials: gypsum powder, vitrified micro bubbles, cement, a retarder, a water-retaining agent, a lubricant, a stabilizer, an air-entraining agent, a water-reducing agent, silicon dioxide, a water repellent, slag, steel slag and gypsum whiskers;
b. proportioning: selecting 700 parts of gypsum powder, 90 parts of vitrified micro bubbles, 60 parts of cement, 3 parts of retarder, 3 parts of water-retaining agent, 3 parts of lubricant, 2 parts of stabilizer, 2 parts of air-entraining agent, 2 parts of water-reducing agent, 8 parts of silicon dioxide, 3 parts of water repellent, 15 parts of slag, 10 parts of steel slag and 20 parts of gypsum whisker;
c. primary stirring: taking 800 parts of gypsum powder and 80 parts of vitrified micro bubbles, adding a proper amount of water, and uniformly stirring by using a stirrer;
d. and (2) preliminary stirring: uniformly stirring 60 parts of cement, 3 parts of retarder, 3 parts of water-retaining agent, 3 parts of lubricant, 2 parts of stabilizer, 2 parts of air-entraining agent, 2 parts of water-reducing agent, 8 parts of silicon dioxide, 3 parts of water repellent, 15 parts of slag, 10 parts of steel slag and 20 parts of gypsum whisker by a stirrer;
e. mixing and stirring: c, mixing and stirring the mixture obtained in the step c and the step d again until the mixture is uniformly stirred;
f. packaging: and conveying the uniformly stirred raw materials into a finished product bin, and packaging by a packaging machine. The prepared gypsum mortar has common water resistance effect and does not meet the requirement.
The second embodiment is as follows:
a. selecting materials: gypsum powder, vitrified micro bubbles, cement, a retarder, a water-retaining agent, a lubricant, a stabilizer, an air-entraining agent, a water-reducing agent, silicon dioxide, a water repellent, slag, steel slag and gypsum whiskers;
b. proportioning: selecting 900 parts of gypsum powder, 60 parts of vitrified micro bubbles, 60 parts of cement, 3 parts of retarder, 3 parts of water-retaining agent, 3 parts of lubricant, 2 parts of stabilizer, 2 parts of air-entraining agent, 2 parts of water-reducing agent, 8 parts of silicon dioxide, 3 parts of water repellent, 15 parts of slag, 10 parts of steel slag and 20 parts of gypsum whisker;
c. primary stirring: taking 800 parts of gypsum powder and 80 parts of vitrified micro bubbles, adding a proper amount of water, and uniformly stirring by using a stirrer;
d. and (2) preliminary stirring: uniformly stirring 60 parts of cement, 3 parts of retarder, 3 parts of water-retaining agent, 3 parts of lubricant, 2 parts of stabilizer, 2 parts of air-entraining agent, 2 parts of water-reducing agent, 8 parts of silicon dioxide, 3 parts of water repellent, 15 parts of slag, 10 parts of steel slag and 20 parts of gypsum whisker by a stirrer;
e. mixing and stirring: c, mixing and stirring the mixture obtained in the step c and the step d again until the mixture is uniformly stirred;
f. packaging: and conveying the uniformly stirred raw materials into a finished product bin, and packaging by a packaging machine. The prepared gypsum mortar has a general water resistance effect and can be normally used.
The third concrete embodiment:
a. selecting materials: gypsum powder, vitrified micro bubbles, cement, a retarder, a water-retaining agent, a lubricant, a stabilizer, an air-entraining agent, a water-reducing agent, silicon dioxide, a water repellent, slag, steel slag and gypsum whiskers;
b. proportioning: selecting 800 parts of gypsum powder, 80 parts of vitrified micro bubbles, 60 parts of cement, 3 parts of retarder, 3 parts of water-retaining agent, 3 parts of lubricant, 2 parts of stabilizer, 2 parts of air-entraining agent, 2 parts of water-reducing agent, 8 parts of silicon dioxide, 3 parts of water repellent, 15 parts of slag, 10 parts of steel slag and 20 parts of gypsum whisker;
c. primary stirring: taking 800 parts of gypsum powder and 80 parts of vitrified micro bubbles, adding a proper amount of water, and uniformly stirring by using a stirrer;
d. and (2) preliminary stirring: uniformly stirring 60 parts of cement, 3 parts of retarder, 3 parts of water-retaining agent, 3 parts of lubricant, 2 parts of stabilizer, 2 parts of air-entraining agent, 2 parts of water-reducing agent, 8 parts of silicon dioxide, 3 parts of water repellent, 15 parts of slag, 10 parts of steel slag and 20 parts of gypsum whisker by a stirrer;
e. mixing and stirring: c, mixing and stirring the mixture obtained in the step c and the step d again until the mixture is uniformly stirred;
f. packaging: and conveying the uniformly stirred raw materials into a finished product bin, and packaging by a packaging machine. The prepared gypsum mortar has common water resistance effect and does not meet the requirement.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. The preparation method of the water-resistant gypsum mortar is characterized by comprising the following steps: a. selecting materials: gypsum powder, vitrified micro bubbles, cement, a retarder, a water-retaining agent, a lubricant, a stabilizer, an air-entraining agent, a water-reducing agent, silicon dioxide, a water repellent, slag, steel slag and gypsum whiskers;
b. proportioning: selecting 800 parts of gypsum powder, 80 parts of vitrified micro bubbles, 60 parts of cement, 3 parts of retarder, 3 parts of water-retaining agent, 3 parts of lubricant, 2 parts of stabilizer, 2 parts of air-entraining agent, 2 parts of water-reducing agent, 8 parts of silicon dioxide, 3 parts of water repellent, 15 parts of slag, 10 parts of steel slag and 20 parts of gypsum whisker;
c. primary stirring: taking 800 parts of gypsum powder and 80 parts of vitrified micro bubbles, adding a proper amount of water, and uniformly stirring by using a stirrer;
d. and (2) preliminary stirring: uniformly stirring 60 parts of cement, 3 parts of retarder, 3 parts of water-retaining agent, 3 parts of lubricant, 2 parts of stabilizer, 2 parts of air-entraining agent, 2 parts of water-reducing agent, 8 parts of silicon dioxide, 3 parts of water repellent, 15 parts of slag, 10 parts of steel slag and 20 parts of gypsum whisker by a stirrer;
e. mixing and stirring: c, mixing and stirring the mixture obtained in the step c and the step d again until the mixture is uniformly stirred;
f. packaging: and conveying the uniformly stirred raw materials into a finished product bin, and packaging by a packaging machine.
2. The method of claim 1, wherein the mixing time of the gypsum powder and the vitrified micro bubbles in the step c is 30-40 min.
3. The method for preparing a water-resistant gypsum mortar of claim 1, wherein the mixing time of the cement, the retarder, the water-retaining agent, the lubricant, the stabilizer, the air-entraining agent, the water-reducing agent, the silicon dioxide, the water repellent, the slag, the steel slag and the gypsum whiskers in the step d is 15-20 min.
4. The method of claim 1, wherein the water reducing agent is dicyandiamide (SM-1013), the slag is S95 slag powder, and the cement is ordinary silica 42.5 cement.
5. The preparation method of the water-resistant gypsum mortar of claim 1, wherein the water retention agent is methyl cellulose ether, bentonite, or a mixture of methyl cellulose ether and bentonite in a mass ratio of 1: 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010583206.7A CN111777392A (en) | 2020-06-23 | 2020-06-23 | Preparation method of water-resistant gypsum mortar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010583206.7A CN111777392A (en) | 2020-06-23 | 2020-06-23 | Preparation method of water-resistant gypsum mortar |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456947A (en) * | 2020-12-04 | 2021-03-09 | 娄城环保(苏州)有限公司 | Preparation method and application of anti-dry-cracking gypsum mortar |
| CN112500107A (en) * | 2020-12-04 | 2021-03-16 | 娄城环保(苏州)有限公司 | Gypsum mortar containing vitrified micro bubbles |
| CN112679181A (en) * | 2020-12-24 | 2021-04-20 | 温州明远新型建材有限公司 | Premixed dry-mixed waterproof gypsum mortar |
| CN112851280A (en) * | 2021-01-27 | 2021-05-28 | 苏州娄城新材料科技有限公司 | Light heat-insulating gypsum mortar and preparation method thereof |
| CN115572141A (en) * | 2022-10-24 | 2023-01-06 | 广东复特新型材料科技有限公司 | Gypsum self-leveling mortar |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103467052A (en) * | 2013-08-30 | 2013-12-25 | 江苏省一夫新材料科技有限公司 | High-strength and water-resistant desulfurization building gypsum self-leveling material and preparation method thereof |
| CN110937874A (en) * | 2019-12-19 | 2020-03-31 | 河南赛利特建筑材料有限公司 | Gypsum mortar with high water resistance and preparation method thereof |
-
2020
- 2020-06-23 CN CN202010583206.7A patent/CN111777392A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103467052A (en) * | 2013-08-30 | 2013-12-25 | 江苏省一夫新材料科技有限公司 | High-strength and water-resistant desulfurization building gypsum self-leveling material and preparation method thereof |
| CN110937874A (en) * | 2019-12-19 | 2020-03-31 | 河南赛利特建筑材料有限公司 | Gypsum mortar with high water resistance and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456947A (en) * | 2020-12-04 | 2021-03-09 | 娄城环保(苏州)有限公司 | Preparation method and application of anti-dry-cracking gypsum mortar |
| CN112500107A (en) * | 2020-12-04 | 2021-03-16 | 娄城环保(苏州)有限公司 | Gypsum mortar containing vitrified micro bubbles |
| CN112679181A (en) * | 2020-12-24 | 2021-04-20 | 温州明远新型建材有限公司 | Premixed dry-mixed waterproof gypsum mortar |
| CN112851280A (en) * | 2021-01-27 | 2021-05-28 | 苏州娄城新材料科技有限公司 | Light heat-insulating gypsum mortar and preparation method thereof |
| CN115572141A (en) * | 2022-10-24 | 2023-01-06 | 广东复特新型材料科技有限公司 | Gypsum self-leveling mortar |
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Application publication date: 20201016 |