CN112645654A - Cement-based waterproof material for surface of building block - Google Patents
Cement-based waterproof material for surface of building block Download PDFInfo
- Publication number
- CN112645654A CN112645654A CN202011542466.6A CN202011542466A CN112645654A CN 112645654 A CN112645654 A CN 112645654A CN 202011542466 A CN202011542466 A CN 202011542466A CN 112645654 A CN112645654 A CN 112645654A
- Authority
- CN
- China
- Prior art keywords
- cement
- phosphogypsum
- modified phosphogypsum
- block
- portland cement
- 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.)
- Pending
Links
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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00508—Cement paints
-
- 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
- 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)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a cement-based waterproof material for the surface of a building block, which consists of the following components: portland cement, glutinous rice flour, fine sand, redispersible latex powder, cellulose ether, calcium formate, nano calcium carbonate, modified phosphogypsum and bentonite. The waterproof material forms a gel system by using the portland cement, the glutinous rice flour and the redispersible latex powder, has a good waterproof effect, and has a good bonding effect with various building blocks such as mass sand adding building blocks, hollow building blocks, fly ash building blocks and the like; in order to reduce the thickness of the coating and further improve the bonding strength and the waterproof effect, the invention adopts the alumina and the rare earth modified phosphogypsum, and the modified phosphogypsum can effectively improve the coating density of the waterproof material, thereby thoroughly avoiding common diseases of hollowing, cracking, falling off and the like of a gel system. The coating of the invention has a thickness of 1.2-1.5mm, and can achieve good waterproof effect and bonding strength.
Description
Technical Field
The invention relates to the technical field of waterproof materials, in particular to a cement-based waterproof material for the surface of a building block.
Background
With the rapid development of the construction industry, the plastering project is regarded as an important part in the construction more and more by the industry. The plastering can protect the wall, improve the indoor sanitary condition, enhance the light reflection, beautify the environment, protect the wall, the ceiling, the roof and other parts from the erosion of wind, rain and snow, improve the moisture-proof, weathering-proof and heat-insulating capabilities of the wall and enhance the durability of the wall. However, the painting materials of the traditional process, such as cement mortar, mixed mortar and the like, cannot adapt to surface painting of novel wall materials, such as building blocks, plates and the like, and phenomena of hollowing, cracking, falling and the like can occur, so that the building quality is influenced. A great deal of research has been done on the plastering material in China, for example, Chinese invention patent CN 1483092A discloses a gypsum-based plastering material, the plastering material takes gypsum as a main raw material, and additives such as anhydrous citric acid set control agent and the like are added, so that the common problems of hollowing, cracking, falling off and the like of cement mortar and mixed mortar plastering are better solved, Chinese invention patent CN 10303250A discloses an aerated block wall plastering agent, and the plastering material takes portland cement as a main raw material, and the additives such as a modifier, an anti-cracking agent, a water-retaining agent and the like are added, so that the common problems of hollowing, cracking, falling off and the like of cement mortar and mixed mortar plastering can be effectively solved. However, the coating thickness of the painting material still needs 5-8mm, and the construction cost is still higher. The products on the market still have the phenomena of hollowing, cracking, falling off and the like in the environment with higher humidity,
in order to reduce the thickness of the waterproof material and thus reduce the cost, it is necessary to research a cement-based waterproof material for the surface of the block instead of the existing process, so as to reduce the cost and improve the work efficiency.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a cement-based waterproof material for the surface of a building block.
The technical scheme of the invention is as follows:
a cement-based waterproof material for the surface of a building block comprises the following components in percentage by weight: 35-45% of Portland cement, 2-3% of glutinous rice flour, 18-25% of fine sand, 8-12% of redispersible latex powder, 0.2-0.5% of cellulose ether, 1-3% of calcium formate, 0.5-1% of nano calcium carbonate, 5-8% of modified phosphogypsum and the balance of bentonite.
Preferably, the portland cement is 42.5 or 52.5 portland cement.
Preferably, the cellulose ether is methyl cellulose.
Preferably, the fine sand has a particle size of 80 meshes.
Preferably, the modified phosphogypsum is aluminum oxide and rare earth modified phosphogypsum.
Preferably, the preparation method of the alumina and rare earth modified phosphogypsum comprises the following steps: crushing the raw material phosphogypsum, mixing the crushed raw material phosphogypsum with modifier alumina, sodium fluosilicate and lanthanum chloride in proportion, granulating, calcining and modifying in a washing-free calcining process, controlling the temperature at 150-300 ℃, and taking the calcined material out of a kiln after the calcining time is 20-30min to obtain the modified phosphogypsum.
Further preferably, the mass ratio of the phosphogypsum to the aluminum oxide to the sodium fluosilicate to the lanthanum chloride is 100: (12-18): (1-2): (0.2-0.3).
A preparation method of a cement-based waterproof material for the surface of a building block comprises the following steps:
A. after the stirrer is opened, adding the nano calcium carbonate-bentonite-calcium formate-redispersible latex powder-modified phosphogypsum-cellulose ether into the stirrer in sequence and uniformly stirring to prepare a mixed additive;
B. after the stirrer is opened, firstly adding 50% of Portland cement, then adding 50% of fine sand and then 50% of mixed additive, slightly stirring, then adding the rest raw materials, and uniformly stirring.
The invention has the advantages that: the cement-based waterproof material for the surfaces of the building blocks, disclosed by the invention, is a gel system formed by portland cement, glutinous rice flour and redispersible latex powder, so that the waterproof effect is good, and the cement-based waterproof material has a good bonding effect with various building blocks such as sand-added building blocks, hollow building blocks, fly ash building blocks and the like; in order to reduce the thickness of the coating and further improve the bonding strength and the waterproof effect, the invention adopts the alumina and the rare earth modified phosphogypsum, and the modified phosphogypsum can effectively improve the coating density of the waterproof material, thereby thoroughly avoiding common diseases of hollowing, cracking, falling off and the like of a gel system. The coating of the invention has a thickness of 1.2-1.5mm, and can achieve good waterproof effect and bonding strength.
Detailed Description
Example 1
A cement-based waterproof material for the surface of a building block comprises the following components in percentage by weight: 42% of Portland cement, 2.5% of glutinous rice flour, 22% of fine sand, 10% of redispersible latex powder, 0.35% of cellulose ether, 1.5% of calcium formate, 0.8% of nano calcium carbonate, 6% of modified phosphogypsum and the balance of bentonite.
The portland cement is 52.5 portland cement.
The cellulose ether is methyl cellulose.
The particle size of the fine sand is 80 meshes.
The modified phosphogypsum is aluminum oxide and rare earth modified phosphogypsum.
The preparation method of the alumina and rare earth modified phosphogypsum comprises the following steps: crushing the raw material phosphogypsum, mixing the crushed raw material phosphogypsum with modifier alumina, sodium fluosilicate and lanthanum chloride in proportion, granulating, calcining and modifying in a waterless washing and calcining process, controlling the temperature to be 185 ℃, and taking out of a kiln after the calcining time is 25min to obtain the modified phosphogypsum.
The mass ratio of the phosphogypsum to the aluminum oxide to the sodium fluosilicate to the lanthanum chloride is 100: 15: 1.85: 0.25.
a preparation method of a cement-based waterproof material for the surface of a building block comprises the following steps:
A. after the stirrer is opened, adding the nano calcium carbonate-bentonite-calcium formate-redispersible latex powder-modified phosphogypsum-cellulose ether into the stirrer in sequence and uniformly stirring to prepare a mixed additive;
B. after the stirrer is opened, firstly adding 50% of Portland cement, then adding 50% of fine sand and then 50% of mixed additive, slightly stirring, then adding the rest raw materials, and uniformly stirring.
Example 2
A cement-based waterproof material for the surface of a building block comprises the following components in percentage by weight: 45% of Portland cement, 2% of glutinous rice flour, 25% of fine sand, 8% of redispersible latex powder, 0.5% of cellulose ether, 1% of calcium formate, 1% of nano calcium carbonate, 5% of modified phosphogypsum and the balance of bentonite.
The portland cement is 42.5 portland cement.
The cellulose ether is methyl cellulose.
The particle size of the fine sand is 80 meshes.
The modified phosphogypsum is aluminum oxide and rare earth modified phosphogypsum.
The preparation method of the alumina and rare earth modified phosphogypsum comprises the following steps: crushing the raw material phosphogypsum, mixing the crushed raw material phosphogypsum with modifier alumina, sodium fluosilicate and lanthanum chloride in proportion, granulating, calcining and modifying in a waterless washing and calcining process, controlling the temperature to be 300 ℃, and taking out of a kiln after calcining for 20min to obtain the modified phosphogypsum.
The mass ratio of the phosphogypsum to the aluminum oxide to the sodium fluosilicate to the lanthanum chloride is 100: 18: 1: 0.3.
a preparation method of a cement-based waterproof material for the surface of a building block comprises the following steps:
A. after the stirrer is opened, adding the nano calcium carbonate-bentonite-calcium formate-redispersible latex powder-modified phosphogypsum-cellulose ether into the stirrer in sequence and uniformly stirring to prepare a mixed additive;
B. after the stirrer is opened, firstly adding 50% of Portland cement, then adding 50% of fine sand and then 50% of mixed additive, slightly stirring, then adding the rest raw materials, and uniformly stirring.
Example 3
A cement-based waterproof material for the surface of a building block comprises the following components in percentage by weight: 35% of Portland cement, 3% of glutinous rice flour, 18% of fine sand, 12% of redispersible latex powder, 0.2% of cellulose ether, 3% of calcium formate, 0.5% of nano calcium carbonate, 8% of modified phosphogypsum and the balance of bentonite.
The portland cement is 52.5 portland cement.
The cellulose ether is methyl cellulose.
The particle size of the fine sand is 80 meshes.
The modified phosphogypsum is aluminum oxide and rare earth modified phosphogypsum.
The preparation method of the alumina and rare earth modified phosphogypsum comprises the following steps: crushing the raw material phosphogypsum, mixing the crushed raw material phosphogypsum with modifier alumina, sodium fluosilicate and lanthanum chloride in proportion, granulating, calcining and modifying in a waterless washing and calcining process, controlling the temperature at 150 ℃, and taking out of a kiln after calcining for 30min to obtain the modified phosphogypsum.
The mass ratio of the phosphogypsum to the aluminum oxide to the sodium fluosilicate to the lanthanum chloride is 100: 12: 2: 0.2.
a preparation method of a cement-based waterproof material for the surface of a building block comprises the following steps:
A. after the stirrer is opened, adding the nano calcium carbonate-bentonite-calcium formate-redispersible latex powder-modified phosphogypsum-cellulose ether into the stirrer in sequence and uniformly stirring to prepare a mixed additive;
B. after the stirrer is opened, firstly adding 50% of Portland cement, then adding 50% of fine sand and then 50% of mixed additive, slightly stirring, then adding the rest raw materials, and uniformly stirring.
Comparative example 1
The sodium fluosilicate in the preparation process of the alumina and rare earth modified phosphogypsum in the embodiment 1 is removed, and the rest proportion and the preparation method are unchanged.
The waterproof materials of examples 1 to 3 and comparative example 1 (coating thickness of 1.30mm) were examined as follows, and the following examination results were obtained, and specific results are shown in Table 1.
Table 1:
in the examples, the samples were tested according to the industrial standard JC890-3001 masonry mortar and finishing mortar for steam aerated concrete.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The cement-based waterproof material for the surface of the building block is characterized by comprising the following components in percentage by weight: 35-45% of Portland cement, 2-3% of glutinous rice flour, 18-25% of fine sand, 8-12% of redispersible latex powder, 0.2-0.5% of cellulose ether, 1-3% of calcium formate, 0.5-1% of nano calcium carbonate, 5-8% of modified phosphogypsum and the balance of bentonite.
2. The cement-based waterproofing material for block surfaces as claimed in claim 1, wherein said portland cement is 42.5 or 52.5 portland cement.
3. The cement-based waterproofing material for block surfaces according to claim 1, wherein said cellulose ether is methyl cellulose.
4. The cement-based waterproofing material for a surface of a block as set forth in claim 1, wherein said fine sand has a particle size of 80 mesh.
5. The cement-based waterproofing material for block surfaces according to claim 1, wherein said modified phosphogypsum is an alumina and rare earth modified phosphogypsum.
6. The cement-based waterproofing material for the surface of a block according to claim 1, wherein the preparation method of the alumina and rare earth modified phosphogypsum comprises the following steps: crushing the raw material phosphogypsum, mixing the crushed raw material phosphogypsum with modifier alumina, sodium fluosilicate and lanthanum chloride in proportion, granulating, calcining and modifying in a washing-free calcining process, controlling the temperature at 150-300 ℃, and taking the calcined material out of a kiln after the calcining time is 20-30min to obtain the modified phosphogypsum.
7. The cement-based waterproof material for the surface of the block as claimed in claim 6, wherein the mass ratio of the phosphogypsum, the alumina, the sodium fluosilicate and the lanthanum chloride is 100: (12-18): (1-2): (0.2-0.3).
8. The cement-based waterproofing material for a surface of a block as set forth in any one of claims 1 to 7, wherein the preparation method thereof comprises the steps of:
A. after the stirrer is opened, adding the nano calcium carbonate-bentonite-calcium formate-redispersible latex powder-modified phosphogypsum-cellulose ether into the stirrer in sequence and uniformly stirring to prepare a mixed additive;
B. after the stirrer is opened, firstly adding 50% of Portland cement, then adding 50% of fine sand and then 50% of mixed additive, slightly stirring, then adding the rest raw materials, and uniformly stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011542466.6A CN112645654A (en) | 2020-12-23 | 2020-12-23 | Cement-based waterproof material for surface of building block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011542466.6A CN112645654A (en) | 2020-12-23 | 2020-12-23 | Cement-based waterproof material for surface of building block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112645654A true CN112645654A (en) | 2021-04-13 |
Family
ID=75359698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011542466.6A Pending CN112645654A (en) | 2020-12-23 | 2020-12-23 | Cement-based waterproof material for surface of building block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112645654A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265043A (en) * | 2008-04-24 | 2008-09-17 | 云南民族大学 | Method for producing building gypsum from modified phosphorus gypsum |
| CN105801043A (en) * | 2014-12-30 | 2016-07-27 | 天长市高新技术创业服务中心 | Waterproof material |
| CN107805020A (en) * | 2017-11-02 | 2018-03-16 | 洪飞飞 | A kind of environment-friendly painting coating for being suitable for classroom |
| CN108069652A (en) * | 2017-12-04 | 2018-05-25 | 华砂砂浆有限责任公司 | Mono-component polymer-cement waterproof mortar |
-
2020
- 2020-12-23 CN CN202011542466.6A patent/CN112645654A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265043A (en) * | 2008-04-24 | 2008-09-17 | 云南民族大学 | Method for producing building gypsum from modified phosphorus gypsum |
| CN105801043A (en) * | 2014-12-30 | 2016-07-27 | 天长市高新技术创业服务中心 | Waterproof material |
| CN107805020A (en) * | 2017-11-02 | 2018-03-16 | 洪飞飞 | A kind of environment-friendly painting coating for being suitable for classroom |
| CN108069652A (en) * | 2017-12-04 | 2018-05-25 | 华砂砂浆有限责任公司 | Mono-component polymer-cement waterproof mortar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108530001A (en) | A kind of white wall facing mortar prepared by carbide slag | |
| CN103553526B (en) | Gypsum base door and window joint filling seal sand slurry and its preparation method and application | |
| CN104254504B (en) | The geopolymer formulation and method of dimensionally stable | |
| CN107473685B (en) | Fluorgypsum-based plastering material for interior walls and production process thereof | |
| CN106966687A (en) | One kind is without strong cohesive force phosphate cement patching material of mobility rapid hardening and preparation method thereof | |
| CN105801065B (en) | A kind of high intensity plastering gupsum and preparation method thereof | |
| CN111410502B (en) | Anhydrite-based light plastering mortar and preparation method thereof | |
| CN106673553B (en) | A kind of low cost ceramic tile adhesive and preparation method thereof | |
| CN104045307A (en) | Surface-decorative mortar and preparation method thereof | |
| CN113416013A (en) | High-performance concrete crack resistance agent and preparation method thereof | |
| CN109987912A (en) | Zeolite prepares iron tailings dry powder and mortar | |
| CN109206108A (en) | A kind of scratch coat gypsum and preparation method thereof | |
| CN111747664A (en) | Semi-hydrated phosphogypsum-based water-resistant cementing material and preparation method thereof | |
| CN112939561B (en) | Phosphogypsum-based light plastering gypsum and preparation method thereof | |
| CN111943626A (en) | Gypsum-based wall leveling material and preparation method and use method thereof | |
| WO2023213065A1 (en) | Gypsum-based ground tile bonding mortar and preparation method therefor | |
| CN113998975A (en) | Gypsum-based ceramic tile cementing material and preparation method thereof | |
| CN110563376B (en) | Concrete reinforcing agent suitable for being prepared from machine-made sand and preparation method of mother liquor of concrete reinforcing agent | |
| CN105481321A (en) | Modified gypsum base screed and preparation and application thereof | |
| CN101653966B (en) | Method for preparing special plastering mortar for self-energy-saving air-entrained concrete wall material | |
| CN107721332A (en) | The production method of cement for construction in sea building mortar | |
| US11512026B2 (en) | Use of zinc salts in combination with alkyl amines in cement-based dry mortar mixtures | |
| CN112645654A (en) | Cement-based waterproof material for surface of building block | |
| CN115432978A (en) | Cement-based lightweight plastering and preparation method thereof | |
| KR20040017144A (en) | Composition of Lightweight / Foamed Concrete and Method of Making Same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210413 |