CN111268945B - Environment-friendly building exterior wall material and construction method thereof - Google Patents
Environment-friendly building exterior wall material and construction method thereof Download PDFInfo
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- CN111268945B CN111268945B CN202010050262.4A CN202010050262A CN111268945B CN 111268945 B CN111268945 B CN 111268945B CN 202010050262 A CN202010050262 A CN 202010050262A CN 111268945 B CN111268945 B CN 111268945B
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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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/30—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds
- C04B26/32—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds containing silicon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C3/00—Apparatus or methods for mixing clay with other substances
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/14—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass
- E04F13/142—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or glass with an outer layer of ceramics or clays
-
- 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
- C04B2111/00017—Aspects relating to the protection of the environment
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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
- C04B2111/50—Flexible or elastic materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Finishing Walls (AREA)
Abstract
The invention relates to a soft porcelain material and a preparation method thereof, which comprises the following steps: (1) preparation of the modifier: (2) preparing a composite sepiolite material; (3) the preparation of the soft porcelain material, and the composite sepiolite material is crushed to 15000-. Through the modification of the composite adsorbent, the bisaminopropyl octapolyhedronsilsesquioxane has more negative charges and has excellent adsorption effect on trace harmful organic gas in the air.
Description
Technical Field
The invention relates to a building outer wall soft ceramic tile and a construction method thereof, belonging to the field of building materials and construction.
Background
The soft porcelain is a novel flexible planar decorative material, is obtained by molding and processing water-based polymer emulsion and inorganic substances such as cement, soil, quartz sand or mineral powder and the like, and is an ecological environment-friendly building material. The appearance of the soft porcelain is exactly like the porcelain, but the soft porcelain lacks the ice-cold, heavy and fragile texture of the traditional ceramic material, has the characteristics of light weight, thin body, water and air permeability, natural color, various patterns, flexibility, elasticity and the like, is easy to cut and paste, has low cost and convenient construction, is suitable for building decoration of external walls, internal walls, ground and the like, and greatly enriches and beautifies the living and working environments of people.
With the development of the technology, people develop various and colorful soft porcelain materials such as stone imitation materials, leather imitation patterns, wood imitation grains and the like in succession, and the soft porcelain materials meet the requirement of building nature returning. Along with the improvement of living standard of people, the requirements of people on living environment are higher and higher, such as the requirements of odor elimination, bacteriostasis, antibiosis, warmness, comfort and the like. There have been many studies on soft porcelain in the prior art.
Sepiolite belongs to clay inorganic mineral materials, is beta-type and monoclinic system, is a natural water-containing magnesium-rich silicate and has a layer chain crystal structure. The sepiolite has the chemical general formula of Mg8(OH2)4[Si6O15]2(OH)4·8H2And O. The appearance is gray, the whiteness is generally 30% -60%, and the white fabric has polar adsorption property, rheological property and ion exchange property due to electronegativity of the surface and unique silicon-oxygen tetrahedron and magnesium-oxygen octahedron structures. In the prior art, sepiolite as a soft ceramic tile has not been reported.
Along with the gradual acceleration of the industrialization process, more and more pollutants in the air, in particular more and more sulfur dioxide, nitric oxide, inhalable particles PM2.5 and other various substances harmful to the respiratory tract are generated, and a large amount of pollutants including organic gases such as formaldehyde, benzene and the like can be brought by indoor decoration. Can effectively absorb and prevent environmental pollutants.
Disclosure of Invention
Based on the defects mentioned in the background technology, the invention proposes an environment-friendly soft ceramic tile capable of effectively adsorbing pollutants and a construction method thereof, and the invention is realized by the following technical scheme:
a building outer wall soft ceramic tile comprises the following steps:
(1) preparation of the modifier: dripping ethanol into 3mL of 30 wt% phenyltriethoxysilane solution at the stirring speed of 500 plus 1000r/min to ensure that the concentration of the solution becomes 20 wt%, dripping 0.75mL of catalyst tetraethylammonium hydroxide within 5min, dripping 15mL of phenyltriethoxysilane at the speed of 2mL/min, stirring for 5h at room temperature after finishing dripping, continuing stirring for 10h in a water bath at 80 ℃, heating and refluxing for 24h to obtain a uniform transparent solution, volatilizing the ethanol solvent to obtain a lime emulsion product, washing the product with a mixed solution of tetrahydrofuran and methanol, washing for 2 times with distilled water, centrifuging, freeze-drying to obtain white solid powder, and obtaining bisaminopropyl octapolyhedronic silsesquioxane;
(2) mixing 10g of sepiolite, diatomite and attapulgite according to a ratio of 8:1:1, adding the mixture into a ball mill for crushing and grinding, wherein the ground powder is 15000-20000 meshes, adding 100ml of deionized water for dissolving, dropwise adding 5ml of 5 wt% tetrabutylammonium bromide solution into the mixture after dissolving, mixing and stirring for 2 hours, then adding 3g of bisaminopropyl octa-polyhedronic polyhedral silsesquioxane obtained in the step (1), stirring, filtering and drying to obtain a modified composite sepiolite material;
(3) taking 10-15 parts of the composite sepiolite material obtained in the step (2), 30-50 parts of waste building soil, 10-15 parts of white carbon black, 1-3 parts of methacrylic resin, 2 parts of inorganic pigment, 0.5-1 part of silane coupling agent and 5-10 parts of quartz sand according to the weight ratio, and adding the materials into a kneading machine to be uniformly mixed to obtain mixed powder; and adding the obtained mixed powder into 25-30 parts of silicone-acrylic emulsion, uniformly stirring, injecting into a mold, and drying to obtain the soft ceramic material consisting of the composite modified soil.
Preferably, in the step (1), the mixture of tetrahydrofuran and methanol is mixed according to the volume ratio of 4:1, and the product is washed for 3-5 times.
Preferably, the water content of the modified composite sepiolite material after being filtered and dried in the step (2) is controlled to be 500-1000 ppm.
Preferably, the silane coupling agent in step (3) is isobutyl triethoxy silicon.
Preferably, the 15000-20000 mesh mode obtained in step (2) is as follows:
(1) preparing fine powder: adding the prepared coarse powder into a 0.5L ball mill, adding water accounting for 5-8% of the weight of the mixture to prepare slurry, mixing high-chromium steel ball grinding balls with the diameters of 2mm, 3mm and 7mm according to the weight ratio of 5:3:2, adding the high-chromium steel balls into the high-chromium steel balls, grinding the high-chromium steel balls for 3-4h, drying and removing water to obtain fine powder;
(2) preparing superfine powder: adding the prepared coarse powder into a 0.5 ball mill, adding water accounting for 12-18% of the weight of the fine powder to prepare carbon slurry, adding 2kg of high-chromium steel balls with the diameter of 2mm into the high-chromium steel balls, grinding for 3-4h, and drying to remove water to obtain the high-chromium steel ball grinding material.
The construction method of the soft ceramic tile comprises the following steps:
(1) leveling the base layer, wherein the base layer is leveled according to the leveling requirement of the common ceramic tile wall surface, and the allowable error of the controlled flatness is less than 3 mm;
(2) constructing and paying off, hanging vertically, marking vertical lines at large angles of buildings, edges of doors and windows, through-sky columns and pilers by using a theodolite, and taking the vertical lines as longitudinal reference lines;
(3) dividing and snapping lines, dividing the leveling base layer into a plurality of sections from top to bottom when the leveling base layer is cured to be eighty percent dry, popping a longitudinal control line and a transverse control line in each section in a dividing manner, and marking, wherein the longitudinal control line is parallel to a longitudinal datum line, and the transverse control line is parallel to a transverse datum line; then lead wires are arranged, and each longitudinal control wire corresponds to one lead wire parallel to the longitudinal control wire;
(4) pasting soft ceramic tiles, and pasting the soft ceramic tiles in sections; arranging a bonding layer on the leveling base layer, wherein the bonding layer is made of cement mortar and has the thickness of 2-3 mm; the soft ceramic tile is bonded on the bonding layer, the bottom surface of the soft ceramic tile is bonded in a grid drawn by a longitudinal control line and a transverse control line, the distance between the top surface of the soft ceramic tile and a corresponding lead line is 1-1.5mm, and the soft ceramic tile is prepared by modifying a building waste material;
(5) pointing, namely pointing a horizontal seam and pointing a vertical seam at the same time, wherein the width of the seam is controlled to be 5 mm;
(6) cleaning the surface, after pointing, cleaning the dirt remained on the top surface of the soft ceramic tile after 1 day at normal temperature.
The invention has the beneficial effects that:
(1) the composite adsorbent mainly made of sepiolite and having a large adsorption surface is selected for selection of materials, and the composite adsorbent has a strong adsorption effect on pollutants in the air.
(2) Crushing and grinding the composite sepiolite material to 15000-20000 mesh can enhance the effect while having an extremely large adsorption surface area per se.
(3) Through the modification of the composite adsorbent, the bisaminopropyl octapolyhedronsilsesquioxane has more negative charges and has excellent adsorption effect on trace harmful organic gas in the air.
Detailed Description
The technical solution of the present invention is further described below with reference to the specific embodiments, but the scope of the present invention is not limited to this embodiment.
Example 1
A building outer wall soft ceramic tile is prepared by the following steps:
(1) preparation of the modifier: dripping ethanol into 3mL of 30 wt% phenyltriethoxysilane solution at a stirring speed of 800r/min to enable the concentration of the solution to be 20 wt%, dripping 0.75mL of catalyst tetraethylammonium hydroxide within 5min, dripping 15mL of phenyltriethoxysilane at a speed of 2mL/min, stirring at room temperature for 5h after finishing dripping, continuing stirring in a water bath at 80 ℃ for 10h, heating and refluxing for 24h to obtain a uniform transparent solution, volatilizing an ethanol solvent to obtain a lime emulsion product, washing the product with a mixed solution of tetrahydrofuran and methanol, washing with distilled water for 2 times, centrifuging, and freeze-drying to obtain white solid powder, thus obtaining bisaminopropyl octamer polyhedral silsesquioxane;
(2) mixing 10g of sepiolite, diatomite and attapulgite according to a ratio of 8:1:1, adding the mixture into a ball mill for crushing and grinding, wherein the ground powder is 15000-20000 meshes, adding 100ml of deionized water for dissolving, dropwise adding 5ml of 5 wt% tetrabutylammonium bromide solution into the mixture after dissolving, mixing and stirring for 2 hours, then adding 3g of bisaminopropyl octa-polyhedronic polyhedral silsesquioxane obtained in the step (1), stirring, filtering and drying to obtain a modified composite sepiolite material;
(3) taking 14 parts of the composite sepiolite material obtained in the step (2), 40 parts of waste building clay, 12 parts of white carbon black, 2 parts of methacrylic resin, 2 parts of inorganic pigment, 0.5 part of silane coupling agent and 8 parts of quartz sand according to the weight ratio, adding into a kneading machine, and uniformly mixing to obtain mixed powder; and adding the obtained mixed powder into 27 parts of silicone-acrylic emulsion, uniformly stirring, injecting into a mold, drying, and demolding to obtain the soft material consisting of the composite modified soil.
In the step (1), the mixed solution of tetrahydrofuran and methanol is mixed according to the volume ratio of 4:1, and the product is washed for 4 times.
The water content of the modified composite sepiolite material filtered and dried in the step (2) is controlled to be below 800 ppm.
The silane coupling agent in the step (3) is isobutyl triethoxy silicon.
The 15000-20000 mesh method obtained in the step (2) is as follows:
(1) preparing fine powder: adding the prepared coarse powder into a 0.5L ball mill, adding water accounting for 5-8% of the weight of the mixture to prepare slurry, mixing high-chromium steel ball grinding balls with the diameters of 2mm, 3mm and 7mm according to the weight ratio of 5:3:2, adding the high-chromium steel balls into the high-chromium steel balls, grinding the high-chromium steel balls for 3-4h, drying and removing water to obtain fine powder;
(2) preparing superfine powder: adding the prepared coarse powder into a 0.5 ball mill, adding water accounting for 12-18% of the weight of the fine powder to prepare carbon slurry, adding high-chromium steel balls with the diameter of 2mm into the high-chromium steel balls, grinding for 4 hours, drying to remove water, and detecting the obtained material to be a mixed material of 18000 meshes.
The construction mode of the soft ceramic tile is as follows:
(1) leveling the base layer, wherein the base layer is leveled according to the leveling requirement of the common ceramic tile wall surface, and the allowable error of the controlled flatness is less than 3 mm;
(2) constructing and paying off, hanging vertically, marking vertical lines at large angles of buildings, edges of doors and windows, through-sky columns and pilers by using a theodolite, and taking the vertical lines as longitudinal reference lines;
(3) dividing and snapping lines, dividing the leveling base layer into a plurality of sections from top to bottom when the leveling base layer is cured to be eighty percent dry, popping a longitudinal control line and a transverse control line in each section in a dividing manner, and marking, wherein the longitudinal control line is parallel to a longitudinal datum line, and the transverse control line is parallel to a transverse datum line; then lead wires are arranged, and each longitudinal control wire corresponds to one lead wire parallel to the longitudinal control wire;
(4) pasting soft ceramic tiles, and pasting the soft ceramic tiles in sections; arranging a bonding layer on the leveling base layer, wherein the bonding layer is made of cement mortar and has the thickness of 2 mm; the soft ceramic tile is bonded on the bonding layer, the bottom surface of the soft ceramic tile is bonded in a grid drawn by a longitudinal control line and a transverse control line, the distance between the top surface of the soft ceramic tile and a corresponding lead line is 1mm, and the soft ceramic tile is prepared by modifying a building waste material;
(5) pointing, namely pointing a horizontal seam and pointing a vertical seam at the same time, wherein the width of the seam is controlled to be 5 mm;
(6) cleaning the surface, after pointing, cleaning the dirt remained on the top surface of the soft ceramic tile after 1 day at normal temperature.
Example 2
This example differs from example 1 in that sepiolite was replaced with bentonite. The same procedure as in example 1 was repeated except that 9g of bentonite and 1g of attapulgite were used as the raw materials 10g in step (2).
Example 3
The present embodiment is different from embodiment 1 in that: the modifier used was an acrylic emulsion, as in example 1.
Example 4
The present embodiment is different from embodiment 1 in that: the grinding mesh of the composite sepiolite material in the step (2) is 200 meshes, and the rest is the same as that of the example 1.
And (3) testing and effect:
the soft porcelain materials prepared in the above examples 1 to 4 were tested with commercially available ordinary soft magnetic materials, and the soft porcelain materials were tested for absorbability of pollutants such as PM2.5, formaldehyde, benzene, etc.: examples 1 to 4 and the commercially available soft magnetic material were cut into 100 blocks of 10X 10mm and placed in a concentration of 150. mu.g/m PM2.5 in each case3In a 10L container with formaldehyde concentration of 30mg/L and benzene concentration of 20mg/L, the changes of the inhalable particulate matter PM2.5, formaldehyde and benzene concentrations are respectively measured under the conditions of room temperature and natural light. The calculation formula of the degradation rate of the pollutants is as follows: the absorbance (initial concentration-concentration at test) ÷ initial concentration, data are shown in table 1, table 2, table 3.
TABLE 1 (inhalable particles PM2.5)
| 12h | 24h | 48h | 96h | 7d | 30d | |
| Example 1 (% absorption) | 52.3 | 59.1 | 62.3 | 65.6 | 70.8 | 79.1 |
| Example 2 (% absorption) | 10.3 | 12.5 | 13.6 | 13.8 | 14.1 | 14.3 |
| Example 3 (% absorption) | 50.9 | 57.8 | 61.2 | 67.8 | 68.2 | 76.8 |
| Example 4 (% absorption) | 45.3 | 48.6 | 49.3 | 53.9 | 55.8 | 60.8 |
| Commercial soft porcelain plate (% absorption) | 0.1 | 0.1 | 0.2 | 0.3 | 0.4 | 0.4 |
TABLE 2 (Formaldehyde)
TABLE 3 (benzene)
| 12h | 24h | 48h | 96h | 7d | 30d | |
| Example 1 (% absorption) | 73.5 | 76.6 | 76.9 | 79.6 | 82.6 | 83.6 |
| Example 2 (% absorption) | 1.0 | 1.3 | 2.3 | 2.5 | 2.7 | 2.7 |
| Example 3 (% absorption) | 20.5 | 21.6 | 22.5 | 22.9 | 23.5 | 23.7 |
| Example 4 (% absorption) | 35.6 | 37.9 | 38.5 | 39.6 | 42.3 | 50.3 |
| Commercial soft porcelain plate (% absorption) | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 |
From the data, the influence of the type of the modifier on the absorption of the inhalable particulate matter PM2.5 is small, the sepiolite has strong absorption effect and can effectively absorb the inhalable particulate matter PM2.5, and the mesh number of the absorbent has partial influence on the absorption rate. The modifier has great influence on organic gases and can effectively absorb harmful organic gases generated in the decoration processes of formaldehyde, benzene and the like.
Claims (6)
1. A building outer wall soft ceramic tile is characterized by being prepared by the following steps:
(1) preparation of the modifier: dripping ethanol into 3mL of 30 wt% phenyltriethoxysilane solution at the stirring speed of 500 plus 1000r/min to enable the concentration to become 20 wt%, dripping 0.75mL of catalyst tetraethylammonium hydroxide within 5min, dripping 15mL of phenyltriethoxysilane at the speed of 2mL/min, stirring for 5h at room temperature after finishing dripping, continuing stirring for 10h in a water bath at 80 ℃, heating and refluxing for 24h to obtain a uniform transparent solution, volatilizing the ethanol solvent to obtain a lime emulsion product, washing the product with a mixed solution of tetrahydrofuran and methanol, washing with distilled water for 2 times, centrifuging, and freeze-drying to obtain white solid powder, thus obtaining bisaminopropyl octa-polyhedronic silsesquioxane;
(2) mixing 10g of sepiolite, diatomite and attapulgite according to a ratio of 8:1:1, adding the mixture into a ball mill for crushing and grinding, wherein the ground powder is 15000-20000 meshes, adding 100ml of deionized water for dissolving, dropwise adding 5ml of 5 wt% tetrabutylammonium bromide solution into the mixture after dissolving, mixing and stirring for 2 hours, then adding 3g of bisaminopropyl octa-polyhedronic polyhedral silsesquioxane obtained in the step (1), stirring, filtering and drying to obtain a modified composite sepiolite material;
(3) taking 10-15 parts of the composite sepiolite material obtained in the step (2), 30-50 parts of waste building soil, 10-15 parts of white carbon black, 1-3 parts of methacrylic resin, 2 parts of inorganic pigment, 0.5-1 part of silane coupling agent and 5-10 parts of quartz sand according to the weight ratio, and adding the materials into a kneading machine to be uniformly mixed to obtain mixed powder; and adding the obtained mixed powder into 25-30 parts of silicone-acrylic emulsion, uniformly stirring, injecting into a mold, and drying to obtain the soft ceramic material consisting of the composite modified soil.
2. The building exterior wall soft tile according to claim 1, wherein: in the step (1), the mixed solution of tetrahydrofuran and methanol is mixed according to the volume ratio of 4:1, and the product is washed for 3-5 times.
3. The building exterior wall soft tile according to claim 1, wherein: the water content of the modified composite sepiolite material filtered and dried in the step (2) is controlled to be 500-1000 ppm.
4. The building exterior wall soft tile according to claim 1, wherein: the silane coupling agent in the step (3) is isobutyl triethoxy silicon.
5. The building exterior wall soft tile according to claim 1, wherein: the 15000-20000 mesh method obtained in the step (2) is as follows:
(1) preparing fine powder: adding the prepared coarse powder into a 0.5L ball mill, adding water accounting for 5-8% of the weight of the mixture to prepare slurry, mixing high-chromium steel ball grinding balls with the diameters of 2mm, 3mm and 7mm according to the weight ratio of 5:3:2, adding the high-chromium steel balls into the high-chromium steel balls, grinding the high-chromium steel balls for 3-4h, drying and removing water to obtain fine powder;
(2) preparing superfine powder: adding the prepared coarse powder into a 0.5 ball mill, adding water accounting for 12-18% of the weight of the fine powder to prepare carbon slurry, adding 2kg of high-chromium steel balls with the diameter of 2mm into the high-chromium steel balls, grinding for 3-4h, and drying to remove water to obtain the high-chromium steel ball grinding material.
6. A construction method of the building exterior wall soft tile according to claim 1, comprising the steps of:
(1) leveling the base layer, wherein the base layer is leveled according to the leveling requirement of the common ceramic tile wall surface, and the allowable error of the controlled flatness is less than 3 mm;
(2) constructing and paying off, hanging vertically, marking vertical lines at large angles of buildings, edges of doors and windows, through-sky columns and pilers by using a theodolite, and taking the vertical lines as longitudinal reference lines;
(3) dividing and snapping lines, dividing the leveling base layer into a plurality of sections from top to bottom when the leveling base layer is cured to be eighty percent dry, popping a longitudinal control line and a transverse control line in each section in a dividing manner, and marking, wherein the longitudinal control line is parallel to a longitudinal datum line, and the transverse control line is parallel to a transverse datum line; then lead wires are arranged, and each longitudinal control wire corresponds to one lead wire parallel to the longitudinal control wire;
(4) pasting soft ceramic tiles, and pasting the soft ceramic tiles in sections; arranging a bonding layer on the leveling base layer, wherein the bonding layer is made of cement mortar and has the thickness of 2-3 mm; the soft ceramic tile is bonded on the bonding layer, the bottom surface of the soft ceramic tile is bonded in a grid drawn by a longitudinal control line and a transverse control line, the distance between the top surface of the soft ceramic tile and a corresponding lead line is 1-1.5mm, and the soft ceramic tile is prepared by modifying a building waste material;
(5) pointing, namely pointing a horizontal seam and pointing a vertical seam at the same time, wherein the width of the seam is controlled to be 5 mm;
(6) cleaning the surface, after pointing, cleaning the dirt remained on the top surface of the soft ceramic tile after 1 day at normal temperature.
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| CN110483779A (en) * | 2019-09-10 | 2019-11-22 | 哈尔滨工业大学 | A kind of synthetic method of more aminopropyl cage type polysilsesquioxanes |
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