Colorful dry-mixed inorganic abrasive stone and its construction method in wall and floor

Abstract

The application discloses a kind of color dry mix inorganic polishing stone and its construction method in wall, floor, belong to polishing stone technical field, the color dry mix inorganic polishing stone, including the following mass parts of component: 20~40 parts white Portland cement, 30~60 parts fine sand, 5~25 parts aggregate, 4~16 parts modified wollastonite fiber, 2~15 parts glass, 0.1~10 parts color pigment, 0.1~10 parts inorganic color powder, 1~6 parts water reducing agent;The color dry mix inorganic polishing stone of the application has excellent wear resistance and bending resistance, the color dry mix inorganic polishing stone can withstand high traffic friction, can withstand a large load without significant deformation or damage, ensure the stability and safety of building structure, can be widely used in commercial space, airport, railway station and other high-traffic area floor and wall laying material.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grinding stone, in particular to a color dry-mixed inorganic grinding stone and a construction method thereof in wall surface and floor. BACKGROUND

[0002] The inorganic grinding stone is a kind of high-performance building material, which is mainly composed of inorganic cementing material, aggregate and pigment, etc. After grinding and polishing, it forms a smooth and bright floor. The color dry-mixed inorganic grinding stone is mainly applied in the laying space of floor, wall surface and platform in hotel, exhibition hall, shopping mall, airport, station, subway station, office building, parking lot, warehouse and gymnasium, etc. It has dense structure, no micropore, is not easy to absorb dust and is easy to clean. It is convenient to construct, has bright color, changeable shape and can be customized.

[0003] The color dry-mixed inorganic grinding stone can not only meet the advantages of long service life and individuality of inorganic grinding stone, but also reduce the engineering cost. The color dry-mixed inorganic grinding stone wall floor has high hardness, is seamless as a whole, has mirror brightness, is environment-friendly and non-toxic, is fireproof and anti-skid, and has wide application prospect. The existing color inorganic grinding stone is easy to wear and tear and even produce micro-cracks after bearing long-term human flow and vehicle flow.

[0004] In view of this, the present application is proposed. SUMMARY

[0005] The present application aims to overcome the deficiencies in the prior art and provide a color dry-mixed inorganic grinding stone and a construction method thereof in wall surface and floor. The color dry-mixed inorganic grinding stone has excellent bending strength and wear resistance.

[0006] To achieve the above-mentioned purpose, the first aspect of the present application provides a color dry-mixed inorganic grinding stone, which comprises the following components by mass fraction: 20-40 parts of white Portland cement, 30-60 parts of fine sand, 5-25 parts of aggregate, 4-16 parts of modified wollastonite fiber, 2-15 parts of glass, 0.1-10 parts of color pigment, 0.1-10 parts of inorganic color powder and 1-6 parts of water reducing agent.

[0007] The aggregate comprises dolomite, gypsum dihydrate and calcite in a mass ratio of 1:(0.5-1.5):(0.5-1.5).

[0008] As an embodiment of the present application, the components comprise the following components by mass fraction: 28-35 parts of white Portland cement, 40-50 parts of fine sand, 12-18 parts of aggregate, 6-10 parts of modified wollastonite fiber, 8-12 parts of glass, 0.1-10 parts of color pigment, 0.1-10 parts of inorganic color powder and 2-4 parts of water reducing agent.

[0009] As an embodiment of the present application, the whiteness of the white Portland cement is ≥88 and the compressive strength is ≥42.5 MPa.

[0010] As an embodiment of the present application, the fine sand has a fineness modulus of 1.6-2.2.

[0011] As an embodiment of the present application, the dolomite has an average particle size of 1-10 mm.

[0012] As an embodiment of the present application, the dihydrate gypsum has an average particle size of 0.1-1 mm.

[0013] As an embodiment of the present application, the calcite has an average particle size of 1-10 mm.

[0014] As an embodiment of the present application, the preparation method of the modified wollastonite fiber comprises the following steps:

[0015] The wollastonite fiber, tannic acid, silane coupling agent are added into the hydrochloric acid solution, and stirred uniformly to obtain a mixed solution;

[0016] The melamine is added into the mixed solution, stirred uniformly, dried, and heat treated at 480-550°C for 3-6h under the protection of nitrogen atmosphere to obtain the modified wollastonite fiber.

[0017] As an embodiment of the present application, the wollastonite fiber has an average fiber length of 75-95μm, an aspect ratio of (11-13):1, and a D50 particle size of 8-12μm.

[0018] As an embodiment of the present application, the mass ratio of the wollastonite fiber, tannic acid, silane coupling agent, and hydrochloric acid solution is 1:(0.04-0.08):(0.02-0.05):(4-10).

[0019] As an embodiment of the present application, the mass ratio of the melamine and the mixed solution is (0.08-0.2):10.

[0020] As an embodiment of the present application, the mass ratio of the aggregate and the modified wollastonite fiber is (1-2):1.

[0021] As an embodiment of the present application, the water reducing agent is a polycarboxylic acid water reducing agent.

[0022] As an embodiment of the present application, the color pigment comprises at least one of phthalocyanine pigment, azo pigment, isoindoline ketone pigment, and indigo pigment.

[0023] As an embodiment of the present application, the inorganic color powder comprises at least one of titanium white, iron oxide, burnt sienna, iron oxide brown, chromium oxide, chromium hydroxide, cobalt oxide, iron oxide yellow, iron oxide red, and carbon black.

[0024] The second aspect of the present application provides a construction method of the colored dry-mixed inorganic polishing stone on a wall surface, comprising the following steps: performing roughening treatment on a base layer; cleaning the wall surface dust and flushing water (old wall polishing brush interface agent); finding the wall flatness by infrared rays; preventing the four corners of the whole wall from being divided into grids; pasting the leveling strip according to the line; batch scraping the colored dry-mixed inorganic polishing stone, placing the fiber net, collecting the pressure knife after leveling, and polishing after 1 / 3 days.

[0025] The third aspect of the present application provides a construction method of the colored dry-mixed inorganic polishing stone on a floor, comprising the following steps: performing roughening treatment on a base layer; applying an interface agent on the surface of the base layer; pouring the colored dry-mixed inorganic polishing stone mixed with water uniformly on the surface of the base layer; rough polishing; curing; fine polishing; and polishing.

[0026] The colored dry-mixed inorganic polishing stone has excellent wear resistance and bending resistance, can withstand the friction of high human flow, can withstand a large load without significant deformation or damage, ensures the stability and safety of the building structure, and can be widely applied to the floor and wall laying materials in high human flow areas such as commercial space, airport and train station. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] In the present application, the technical features described in an open manner include both the closed technical scheme consisting of the listed features and the open technical scheme containing the listed features.

[0029] In the present application, if no special description is made, the numerical range is regarded as continuous and includes the minimum value and the maximum value of the range and each value between the minimum value and the maximum value. Further, when a range is referred to as an integer, each integer between the minimum value and the maximum value of the range is included. In addition, when multiple ranges are provided to describe a feature or a characteristic, the ranges can be combined. In other words, unless otherwise specified, all ranges disclosed herein should be understood to include any and all sub-ranges subsumed therein.

[0030] Unless otherwise specified, the component raw materials used in the embodiments and comparative examples of the present application are commercially available raw materials, and the component raw materials used in each parallel experiment are the same.

[0031] The embodiment of the application provides a color dry-mixed inorganic grinding stone, which comprises the following components in parts by mass: 20-40 parts of white Portland cement, 30-60 parts of fine sand, 5-25 parts of aggregate, 4-16 parts of modified wollastonite fiber, 2-15 parts of glass, 0.1-10 parts of color pigment, 0.1-10 parts of inorganic color powder, and 1-6 parts of water reducing agent.

[0032] The aggregate comprises dolomite, dihydrate gypsum and calcite in a mass ratio of 1:(0.5-1.5):(0.5-1.5).

[0033] The application creatively combines the above raw materials to obtain the color dry-mixed inorganic grinding stone with excellent wear resistance and bending resistance, which can withstand the friction of high human flow, can withstand a large load without significant deformation or damage, ensures the stability and safety of the building structure, and can be widely applied to the floor and wall laying materials in high human flow areas such as commercial space, airport and railway station.

[0034] The dolomite mainly plays a role of "skeleton" in the inorganic grinding stone, is dispersed in the inorganic grinding stone, can effectively disperse stress and reduce stress concentration, improves the bending strength of the material, has high hardness, forms a more wear-resistant surface layer after being added, and delays the surface wear of the grinding stone; the dihydrate gypsum is filled in the pores of the cement matrix, enhances the compactness of the grinding stone, reduces the existence of micro-pore structure, can react with the concrete to generate ettringite, the needle-shaped ettringite generated can play a filling and bridging role, enhances the bonding force in the grinding stone, thereby improving the bending resistance, the ettringite formed in the hydration process helps to inhibit the generation and expansion of cracks, thereby increasing the overall strength of the grinding stone, and the dihydrate gypsum can play a role of adjusting the setting time and bonding force, and improving the compatibility of the system; the calcite can react with the hydration products in the concrete matrix to generate calcium carbonate crystals, thereby further enhancing the compactness and strength of the matrix, effectively improving the bonding interface between the matrix and the aggregate, and reducing the generation and expansion of micro-cracks; the dolomite, dihydrate gypsum and calcite are used as the aggregate, interact with each other, are filled in the pores of the inorganic grinding stone, reduce the porosity, enhance the compactness of the material, play a good skeleton role, disperse stress, reduce crack concentration, the generated products improve the matrix structure and enhance the bonding force, adjust the setting time and bonding force, improve the compatibility of the system, and thereby effectively improve the wear resistance and bending resistance of the color dry-mixed inorganic grinding stone.

[0035] In one of the embodiments, the components include the following quality parts: 28-35 parts of white Portland cement, 40-50 parts of fine sand, 12-18 parts of aggregate, 6-10 parts of modified wollastonite fiber, 8-12 parts of glass, 0.1-10 parts of color pigment, 0.1-10 parts of inorganic color powder, 2-4 parts of water reducing agent, especially when the amount of each raw material is in this range, the compatibility of each raw material is better, which can further improve the wear resistance and bending resistance.

[0036] In one of the embodiments, the whiteness of the white Portland cement is greater than or equal to 88, and the compressive strength is greater than or equal to 42.5 MPa.

[0037] In one of the embodiments, the whiteness of the white Portland cement is greater than or equal to 88, and the compressive strength is greater than or equal to 42.5 MPa.

[0038] In one of the embodiments, the whiteness of the white Portland cement is greater than or equal to 88, and the compressive strength is greater than or equal to 42.5 MPa.

[0039] In one of the embodiments, the fineness modulus of the fine sand is 1.6-2.2.

[0040] In one of the embodiments, the average particle size of the fine sand used in the application is 0.25-0.35 mm.

[0041] In one of the embodiments, the average particle size of the dolomite is 1-10 mm.

[0042] In one of the embodiments, the average particle size of the dolomite is 2-10 mm.

[0043] In one of the embodiments, the average particle size of the gypsum dihydrate is 0.1-1 mm.

[0044] In one of the embodiments, the average particle size of the gypsum dihydrate is 0.5-2 mm.

[0045] In one of the embodiments, the average particle size of the calcite is 1-10 mm.

[0046] In one of the embodiments, the average particle size of the calcite is 1-2 mm.

[0047] In one of the embodiments, the average particle size of the dolomite is 1-10 mm.

[0048] In one embodiment, the method for preparing the modified wollastonite fiber comprises the following steps:

[0049] The wollastonite fiber, tannic acid, silane coupling agent and hydrochloric acid solution are added into the solution and stirred to obtain a mixture;

[0050] The melamine is added into the mixture and stirred to obtain a mixture, which is dried and heated at 480-550°C for 3-6h under nitrogen atmosphere to obtain the modified wollastonite fiber.

[0051] The modified wollastonite fiber is uniformly dispersed in the inorganic abrasive stone without agglomeration, and the adhesion between the modified wollastonite fiber and the matrix and the interface adhesion between the modified wollastonite fiber and other components are improved, the mechanical locking effect between the modified wollastonite fiber and other components (especially the aggregate) is promoted, the microstructure of the modified wollastonite fiber is improved, the surface defects of the modified wollastonite fiber are reduced, and the wear resistance and the bending resistance of the inorganic abrasive stone are effectively improved.

[0052] The silane coupling agent comprises at least one of 3-aminopropyl triethoxysilane, 3-aminopropyl trimethoxysilane, 3-glycidyloxypropyl trimethoxysilane, 3-glycidyloxypropyl triethoxysilane, 3-mercaptopropyl trimethoxysilane, vinyl triethoxysilane, vinyl trimethoxysilane and methacryloyloxypropyl trimethoxysilane.

[0053] In one embodiment, the average fiber length of the wollastonite fiber is 75-95μm, the aspect ratio is (11-13):1, and the D50 particle size is 8-12μm.

[0054] In one embodiment, the mass ratio of the wollastonite fiber, tannic acid, silane coupling agent and hydrochloric acid solution is 1:(0.04-0.08):(0.02-0.05):(4-10).

[0055] In one embodiment, the mass ratio of the melamine and the mixture is (0.08-0.2):10.

[0056] In one embodiment, the mass ratio of the aggregate and the modified wollastonite fiber is (1-2):1.

[0057] In one embodiment, the water reducing agent is a polycarboxylic acid water reducing agent.

[0058] The performance index of the water reducing agent meets the requirements of GB8076-2008.

[0059] In one embodiment, the color pigments include at least one of phthalocyanine pigments, azo pigments, isoindolinone pigments, and indigo pigments.

[0060] In one embodiment, the inorganic toner includes at least one of titanium white, iron oxide, burnt sienna, iron oxide brown, chromium oxide, chromium hydroxide, cobalt oxide, iron oxide yellow, iron oxide red, and carbon black.

[0061] It should be noted that in the present application, the present application is not limited to the preparation method of the color dry-mixed inorganic grinding stone, and those skilled in the art can use conventional technical means to prepare the color dry-mixed inorganic grinding stone according to the formula and proportion disclosed in the present application.

[0062] For example, the preparation method of the color dry-mixed inorganic grinding stone includes the following steps:

[0063] According to the raw material ratio, the raw materials are mixed uniformly to obtain a mixture, and the mixture is mixed with water uniformly to obtain the color dry-mixed inorganic grinding stone.

[0064] The mass ratio of the mixture to water is 100:(5-20).

[0065] An embodiment of the present application provides a construction method of the color dry-mixed inorganic grinding stone on a wall surface, which includes the following steps: performing a roughening treatment on a base layer; applying an interface agent on the surface of the base layer; pouring the color dry-mixed inorganic grinding stone mixed uniformly with water on the surface of the base layer; rough grinding; solidifying; fine grinding; and polishing.

[0066] More specifically, the construction method of the color dry-mixed inorganic grinding stone on a wall surface includes the following steps: performing a roughening treatment on a base layer; cleaning dust and flushing water on the wall surface (polishing and brushing the interface agent on the old wall); finding the flatness of the wall body by infrared rays; preventing the four corners of the wall body from being divided into grids; sticking and leveling a strip according to the line; applying the color dry-mixed inorganic grinding stone by batch scraping, laying a fiber net, and collecting the pressure knife after leveling; and polishing after 1 / 3 days.

[0067] An embodiment of the present application provides a construction method of the color dry-mixed inorganic grinding stone on a ground surface, which includes the following steps: performing a roughening treatment on a base layer; applying an interface agent on the surface of the base layer; pouring the color dry-mixed inorganic grinding stone mixed uniformly with water on the surface of the base layer; rough grinding; solidifying; fine grinding; and polishing.

[0068] The present application is further described in detail in the following specific embodiments:

[0069] Embodiment 1

[0070] A color dry-mixed inorganic grinding stone includes the following components in mass parts: 32 parts of white Portland cement, 48 parts of fine sand, 16 parts of aggregate, 8 parts of modified wollastonite fiber, 10 parts of glass, 0.5 parts of phthalocyanine blue, 1 part of titanium white, and 3 parts of water reducing agent.

[0071] The mass ratio of the aggregate and the modified wollastonite fiber is 2:1.

[0072] The white Portland cement is P.W42.5 grade white Portland cement with whiteness≥88 and compressive strength≥42.5MPa.

[0073] The water reducing agent is PCA-10 polycarboxylic acid water reducing agent.

[0074] The particle size of the glass is 5-8mm, and the glass is from Maibo Building Materials.

[0075] The fineness modulus of the fine sand is 1.6-2.2.

[0076] The aggregate comprises dolomite, dihydrate gypsum and calcite in a mass ratio of 1:0.5:1.5, the average particle size of the dolomite is 2mm, the average particle size of the dihydrate gypsum is 0.5mm, and the average particle size of the calcite is 1mm.

[0077] The preparation method of the modified wollastonite fiber comprises the following steps:

[0078] (1) wollastonite fiber, tannic acid, 3-aminopropyl triethoxysilane are added to a 1mol / L hydrochloric acid solution, stirred uniformly at a speed of 200rpm to obtain a mixed solution;

[0079] The average fiber length of the wollastonite fiber is 90.1μm, the aspect ratio is 12:1, the D50 particle size is 10.32μm, and the wollastonite fiber is from Fengjiashan Silicon Fiber, model: WFB10.

[0080] The mass ratio of the wollastonite fiber, tannic acid, 3-aminopropyl triethoxysilane and hydrochloric acid solution is 1:0.05:0.04:5.

[0081] (2) melamine is added to the mixed solution, stirred uniformly at a speed of 200rpm, dried, and added to a muffle furnace, and heat treated at 500℃ for 5h under the protection of nitrogen atmosphere to obtain modified wollastonite fiber; the mass ratio of the melamine and the mixed solution is 0.15:10.

[0082] Example 2

[0083] Example 2 is different from example 1 in that the amount of each raw material is different, and the others are the same.

[0084] A color dry-mixed inorganic grinding stone comprises the following components in parts by mass: 28 parts of white Portland cement, 40 parts of fine sand, 12 parts of aggregate, 6 parts of modified wollastonite fiber, 8 parts of glass, 0.5 parts of phthalocyanine blue, 1 part of titanium white, and 2 parts of water reducing agent.

[0085] Example 3

[0086] Example 3 differs from Example 1 in that the amounts of the raw materials are different, and the others are the same.

[0087] A color dry-mixed inorganic terrazzo, comprising the following components in mass parts: 35 parts of white Portland cement, 50 parts of fine sand, 18 parts of aggregate, 10 parts of modified wollastonite fiber, 12 parts of glass, 0.5 parts of phthalocyanine blue, 1 part of titanium white, and 4 parts of water reducing agent.

[0088] A color dry-mixed inorganic terrazzo, comprising the following components in mass parts: 35 parts of white Portland cement, 50 parts of fine sand, 18 parts of aggregate, 10 parts of modified wollastonite fiber, 12 parts of glass, 0.5 parts of phthalocyanine blue, 1 part of titanium white, and 4 parts of water reducing agent.

[0089] Example 4

[0090] Example 4 differs from Example 1 in that the amounts of the raw materials are different, and the others are the same.

[0091] A color dry-mixed inorganic terrazzo, comprising the following components in mass parts: 20 parts of white Portland cement, 30 parts of fine sand, 5 parts of aggregate, 4 parts of modified wollastonite fiber, 2 parts of glass, 0.5 parts of phthalocyanine blue, 1 part of titanium white, and 1 part of water reducing agent.

[0092] Example 5

[0093] Example 5 differs from Example 1 in that the amounts of the raw materials are different, and the others are the same.

[0094] A color dry-mixed inorganic terrazzo, comprising the following components in mass parts: 40 parts of white Portland cement, 60 parts of fine sand, 25 parts of aggregate, 16 parts of modified wollastonite fiber, 15 parts of glass, 0.5 parts of phthalocyanine blue, 1 part of titanium white, and 6 parts of water reducing agent.

[0095] A color dry-mixed inorganic terrazzo, comprising the following components in mass parts: 40 parts of white Portland cement, 60 parts of fine sand, 25 parts of aggregate, 16 parts of modified wollastonite fiber, 15 parts of glass, 0.5 parts of phthalocyanine blue, 1 part of titanium white, and 6 parts of water reducing agent.

[0096] Example 6

[0097] Example 6 differs from Example 1 in that the amounts of the raw materials are different, and the others are the same.

[0098] A color dry-mixed inorganic terrazzo, comprising the following components in mass parts: 32 parts of white Portland cement, 48 parts of fine sand, 12 parts of aggregate, 12 parts of modified wollastonite fiber, 10 parts of glass, 0.5 parts of phthalocyanine blue, 1 part of titanium white, and 3 parts of water reducing agent.

[0099] The mass ratio of the aggregate and the modified wollastonite fiber is 1:1.

[0100] Example 7

[0101] Example 7 differs from Example 1 in that the mass ratio of the aggregate and the modified wollastonite fiber is adjusted by adjusting the amount of the aggregate and the modified wollastonite fiber (the total amount of the two is unchanged).

[0102] A colored dry-mixed inorganic abrasive stone comprises the following components in mass parts: 32 parts of white portland cement, 48 parts of fine sand, 20 parts of aggregate, 4 parts of modified wollastonite fiber, 10 parts of glass, 0.5 parts of phthalocyanine blue, 1 part of titanium white, and 3 parts of water reducing agent.

[0103] The mass ratio of the aggregate and the modified wollastonite fiber is 5:1.

[0104] Example 8

[0105] Example 8 differs from Example 1 in that the mass ratio of the aggregate and the modified wollastonite fiber is adjusted by adjusting the amount of the aggregate and the modified wollastonite fiber (the total amount of the two is unchanged).

[0106] A colored dry-mixed inorganic abrasive stone comprises the following components in mass parts: 32 parts of white portland cement, 48 parts of fine sand, 8 parts of aggregate, 16 parts of modified wollastonite fiber, 10 parts of glass, 0.5 parts of phthalocyanine blue, 1 part of titanium white, and 3 parts of water reducing agent.

[0107] The mass ratio of the aggregate and the modified wollastonite fiber is 1:2.

[0108] Example 9

[0109] Example 9 differs from Example 1 in that the aggregate is different, and the others are the same.

[0110] The aggregate of the present embodiment comprises dolomite, dihydrate gypsum and calcite in a mass ratio of 1:1.5:0.5, the average particle size of the dolomite is 2 mm, the average particle size of the dihydrate gypsum is 0.5 mm, and the average particle size of the calcite is 1 mm.

[0111] Example 10

[0112] Example 10 differs from Example 1 in that the aggregate is different, and the others are the same.

[0113] The aggregate comprises dolomite, dihydrate gypsum and calcite in a mass ratio of 1:0.5:1.5, the average particle size of the dolomite is 10 mm, the average particle size of the dihydrate gypsum is 2 mm, and the average particle size of the calcite is 2 mm.

[0114] Example 11

[0115] Example 11 differs from Example 1 in that the aggregate is different, and the others are the same.

[0116] The aggregate comprises dolomite, dihydrate gypsum and calcite in a mass ratio of 1:0.5:1.5, the average particle size of the dolomite is 0.5 mm; the average particle size of the dihydrate gypsum is 0.05 mm; and the average particle size of the calcite is 20 mm.

[0117] Example 12

[0118] Example 12 is different from example 1 in that the aggregate is different, and the others are the same.

[0119] The aggregate comprises dolomite, dihydrate gypsum and calcite in a mass ratio of 1:0.5:1.5, the average particle size of the dolomite is 20 mm; the average particle size of the dihydrate gypsum is 5 mm; and the average particle size of the calcite is 0.5 mm.

[0120] Example 13

[0121] Example 13 is different from example 1 in that the average fiber length, aspect ratio and D50 particle size of the wollastonite fiber are different.

[0122] The average fiber length of the wollastonite fiber in this example is 130.3 μm, the aspect ratio is 16:1, and the D50 particle size is 14.66 μm, which is derived from Fengjiashan Silicon Fiber, and the model number is WFB15.

[0123] Example 14

[0124] Example 14 is different from example 1 in that the average fiber length, aspect ratio and D50 particle size of the wollastonite fiber are different.

[0125] The average fiber length of the wollastonite fiber in this example is 45.1 μm, the aspect ratio is 9:1, and the D50 particle size is 4.906 μm, which is derived from Fengjiashan Silicon Fiber, and the model number is WFB5.

[0126] Comparative example 1

[0127] Comparative example 1 is different from example 1 in that comparative example 1 does not contain aggregate, and the others are the same.

[0128] A colored dry-mixed inorganic grinding stone comprises the following components in parts by mass: 32 parts of white portland cement, 48 parts of fine sand, 8 parts of modified wollastonite fiber, 10 parts of glass, 0.5 parts of phthalocyanine blue, 1 part of titanium white, 3 parts of

[0129] Water reducing agent.

[0130] Comparative example 2

[0131] Comparative example 2 is different from example 1 in that comparative example 2 does not contain modified wollastonite fiber, and the others are the same.

[0132] A color dry-mixed inorganic terrazzo, comprising the following components in mass parts: 32 parts of white Portland cement, 48 parts of fine sand, 16 parts of aggregate, 10 parts of glass, 0.5 parts of phthalocyanine blue, 1 part of titanium white, 3 parts of water reducing agent.

[0133] Comparative Example 3

[0134] Comparative Example 3 differs from Example 1 in that Comparative Example 3 uses an equal amount of aggregate to replace the modified wollastonite fiber, and the others are the same.

[0135] A color dry-mixed inorganic terrazzo, comprising the following components in mass parts: 32 parts of white Portland cement, 48 parts of fine sand, 24 parts of aggregate, 10 parts of glass, 0.5 parts of phthalocyanine blue, 1 part of titanium white, 3 parts of water reducing agent.

[0136] Comparative Example 4

[0137] Comparative Example 4 differs from Example 1 in that Comparative Example 4 uses an equal amount of modified wollastonite fiber to replace the aggregate, and the others are the same.

[0138] A color dry-mixed inorganic terrazzo, comprising the following components in mass parts: 32 parts of white Portland cement, 48 parts of fine sand, 24 parts of modified wollastonite fiber, 10 parts of glass, 0.5 parts of phthalocyanine blue, 1 part of titanium white, 3 parts of water reducing agent.

[0139] Water reducing agent.

[0140] Comparative Example 5

[0141] Comparative Example 5 differs from Example 1 in that Comparative Example 5 uses an equal amount of wollastonite fiber to replace the modified wollastonite fiber, and the others are the same.

[0142] A color dry-mixed inorganic terrazzo, comprising the following components in mass parts: 32 parts of white Portland cement, 48 parts of fine sand, 16 parts of aggregate, 8 parts of wollastonite fiber, 10 parts of glass, 0.5 parts of phthalocyanine blue, 1 part of titanium white, 3 parts of water reducing agent.

[0143] Comparative Example 6

[0144] Comparative Example 6 differs from Example 1 in that Comparative Example 6 uses an equal amount of talc powder to replace the modified wollastonite fiber, and the others are the same.

[0145] A color dry-mixed inorganic terrazzo, comprising the following components in mass parts: 32 parts of white Portland cement, 48 parts of fine sand, 16 parts of aggregate, 8 parts of talc powder, 10 parts of glass, 0.5 parts of phthalocyanine blue, 1 part of titanium white, 3 parts of water reducing agent.

[0146] Comparative Example 7

[0147] Comparative Example 7 differs from Example 1 in that the preparation method of the modified wollastonite fiber is different, and the others are the same.

[0148] The preparation method of the modified wollastonite fiber comprises the following steps: adding wollastonite fiber, tannic acid, and 3-aminopropyltriethoxysilane to a 1 mol / L hydrochloric acid solution, stirring uniformly at a speed of 200 rpm to obtain a mixed solution, filtering, and drying to obtain the modified wollastonite fiber.

[0149] The wollastonite fiber has an average fiber length of 90.1 μm, an aspect ratio of 12:1, and a D50 particle size of 10.32 μm. It is sourced from Fengjiashan Silica Fiber and has a brand name of WFB10.

[0150] The mass ratio of the wollastonite fiber, tannic acid, 3-aminopropyltriethoxysilane and hydrochloric acid solution is 1:0.05:0.04:5.

[0151] Comparative Example 8

[0152] The difference between Comparative Example 8 and Example 1 is that the aggregate of Comparative Example 8 is single dolomite, and the other aspects are the same.

[0153] The aggregate is dolomite, and the average particle size of the dolomite is 2 mm.

[0154] Comparative Example 9

[0155] The difference between Comparative Example 9 and Example 1 is that the aggregate of Comparative Example 9 is single dihydrate gypsum, and the other aspects are the same.

[0156] The aggregate is dihydrate gypsum, and the average particle size of the dihydrate gypsum is 0.5 mm.

[0157] Comparative Example 10

[0158] The difference between Comparative Example 10 and Example 1 is that the aggregate of Comparative Example 10 is single calcite, and the other aspects are the same.

[0159] The aggregate is calcite, and the average particle size of the calcite is 1 mm.

[0160] Comparative Example 11

[0161] The difference between Comparative Example 11 and Example 1 is that the aggregate is different, and everything else is the same.

[0162] The aggregate includes dolomite, dihydrate gypsum and calcite in a mass ratio of 1:0.25:0.25, the average particle size of the dolomite is 2 mm; the average particle size of the dihydrate gypsum is 0.5 mm; and the average particle size of the calcite is 1 mm.

[0163] Comparative Example 12

[0164] The difference between Comparative Example 12 and Example 1 is that the aggregate is different, and everything else is the same.

[0165] The aggregate comprises dolomite, dihydrate gypsum and calcite in a mass ratio of 1:2:2, the average particle size of the dolomite is 2mm; the average particle size of the dihydrate gypsum is 0.5mm; and the average particle size of the calcite is 1mm.

[0166] Test example

[0167] The raw material formula in the examples and comparative examples is mixed with water (the mass ratio is 100:12) for testing.

[0168] The bending strength is determined according to GB / T50784-2013.

[0169] The wear resistance is tested according to JC / T 421-2004 to obtain the wear value.

[0170] Table 1

[0171]

[0172]

[0173] As can be seen from Table 1, the color dry-mixed inorganic grinding stone has excellent wear resistance and bending strength, wherein the bending strength of the color dry-mixed inorganic grinding stone is greater than or equal to 15MPa, and the wear value is less than or equal to 0.0410g / cm 2 The color dry-mixed inorganic grinding stone can withstand high friction of high human flow, can withstand a large load without significant deformation or damage, ensures the stability and safety of the building structure, and can be widely applied to floor and wall laying materials in high human flow areas such as commercial space, airport and train station.

[0174] As can be seen from Comparative Examples 1-5, by controlling the amount of each raw material to be 28-35 parts of white Portland cement, 40-50 parts of fine sand, 12-18 parts of aggregate, 6-10 parts of modified wollastonite fiber, 8-12 parts of glass, 0.1-10 parts of color pigment, 0.1-10 parts of inorganic color powder and 2-4 parts of water reducing agent, the bending strength and wear resistance of the grinding stone are effectively improved.

[0175] As can be seen from Comparative Examples 1, 6-8 (Comparative Example 1 and Comparative Examples 6-8 only change the mass ratio of the aggregate and the modified wollastonite fiber), by controlling the mass ratio of the aggregate and the modified wollastonite fiber to be (1-2):1, the bending strength and wear resistance are further improved.

[0176] As can be seen from Comparative Examples 1, 9-12, the present application uses dolomite with an average particle size of 2-10mm, dihydrate gypsum with an average particle size of 0.5-2mm and calcite with an average particle size of 1-2mm, which further improves the bending strength and wear resistance.

[0177] As can be seen from Comparative Example 1 and Comparative Examples 13-14, the wollastonite fiber used in the present application has an average fiber length of 75-95 μm, an aspect ratio of (11-13):1, and a D50 particle size of 8-12 μm, and the modified wollastonite fiber prepared therefrom has further improved flexural strength and wear resistance.

[0178] As can be seen from Comparative Example 1 and Comparative Examples 1-5, the modified wollastonite fiber and the aggregate described in the present application have a synergistic effect in improving flexural strength and wear resistance, and the flexural strength and wear resistance are significantly improved under the combined action of the two.

[0179] As can be seen from Comparative Example 1 and Comparative Examples 6-7, the modified wollastonite fiber described in the present application can significantly improve flexural strength and wear resistance.

[0180] As can be seen from Comparative Example 1 and Comparative Examples 8-12, the dolomite, dihydrate gypsum and calcite used in the present application have a mass ratio of 1:(0.5-1.5):(0.5-1.5), and the flexural strength and wear resistance are significantly improved.

[0181] Test Example 2

[0182] The inorganic abrasive stones of Examples 1-5 were mixed with water (mass ratio of 100:12) to form a 100*100*100 mm sample (5 samples were tested for each example), and the sample was placed in a xenon lamp weathering aging test box; the aging conditions were as follows: aging time was 5 h, blackboard temperature was 63℃, lamp source distance from the sample was 25 cm, xenon lamp wavelength was 550 nm, radiation intensity was 550 W / m, and test time was 7 days; after 7 days, the color change was observed, and the results are shown in Table 2.

[0183] Table 2

[0184] Color changes Example 1 Uniform and stable color without fading Example 2 Uniform and stable color without fading Example 3 Uniform and stable color without fading Example 4 Uniform and stable color without fading Example 5 Uniform and stable color without fading

[0185] As can be seen from Table 2, the color of the color dry-mixed inorganic abrasive stone described in the present application is stable and not easy to fade.

[0186] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application and not to limit the scope of protection of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A colored dry-mixed inorganic abrasive stone, characterized in that, The components include the following components by mass: 20-40 parts of white Portland cement, 30-60 parts of fine sand, 5-25 parts of aggregate, 4-16 parts of modified wollastonite fiber, 2-15 parts of glass, 0.1-10 parts of color pigment, 0.1-10 parts of inorganic color powder, 1-6 parts of water reducing agent; The aggregate comprises dolomite, dihydrate gypsum and calcite in a mass ratio of 1:(0.5-1.5):(0.5-1.5).

2. The colored dry inorganic abrasive mix of claim 1, wherein, The components include the following components by mass: 28-35 parts of white Portland cement, 40-50 parts of fine sand, 12-18 parts of aggregate, 6-10 parts of modified wollastonite fiber, 8-12 parts of glass, 0.1-10 parts of color pigment, 0.1-10 parts of inorganic color powder, 2-4 parts of water reducing agent.

3. The colored dry inorganic abrasive mix of claim 1, wherein, The white Portland cement has a whiteness of ≥88 and a compressive strength of ≥42.5 MPa; and / or The fine sand has a fineness modulus of 1.6-2.

2.

4. The colored dry inorganic abrasive mix of claim 1, wherein, The average particle size of the dolomite is 1-10 mm; The average particle size of the dihydrate gypsum is 0.1-1 mm; The average particle size of the calcite is 1-10 mm.

5. The colored dry inorganic abrasive mix of claim 1, wherein, The preparation method of the modified wollastonite fiber comprises the following steps: The wollastonite fiber, tannic acid, silane coupling agent and hydrochloric acid solution are stirred uniformly to obtain a mixed solution; Melamine is added to the mixed solution, stirred uniformly, dried, and heat-treated at 480-550 DEG C for 3-6 hours under the protection of nitrogen atmosphere to obtain the modified wollastonite fiber.

6. The colored dry inorganic abrasive mix of claim 5, wherein, The average fiber length of the wollastonite fiber is 75-95 μm, the aspect ratio is (11-13):1, and the D50 particle size is 8-12 μm.

7. The colored dry inorganic abrasive mix of claim 5, wherein, The mass ratio of the wollastonite fiber, tannic acid, silane coupling agent, and hydrochloric acid solution is 1:(0.04-0.08):(0.02-0.05):(4-10); The mass ratio of the melamine and the mixed solution is (0.08-0.2):

10.

8. The colored dry inorganic abrasive mix of claim 5, wherein, The mass ratio of the aggregate and the modified wollastonite fiber is (1-2):

1.

9. The colored dry inorganic abrasive mix of claim 1 wherein, The water reducing agent is a polycarboxylic acid water reducing agent.

10. The colored dry inorganic abrasive mix of claim 1 wherein, The color pigment comprises at least one of phthalocyanine pigment, azo pigment, isoindoline ketone pigment, and indigo pigment; and / or The inorganic color powder comprises at least one of titanium white, iron oxide, burnt sienna, iron oxide brown, chromium oxide, chromium hydroxide, cobalt oxide, iron oxide yellow, iron oxide red, and carbon black.

11. A method for applying the colored dry-mixed inorganic abrasive stone according to any one of claims 1 to 10 to a wall surface, characterized by, The method comprises the following steps: performing roughening treatment on the base layer; cleaning the wall surface dust and flushing water; finding the wall flatness by infrared rays; preventing the four corners of the whole wall from being divided into grids in advance; pasting the leveling strip according to the line; batch scraping the color dry-mixed inorganic grinding stone, placing the fiber net, and collecting the pressure knife after leveling; polishing after 1 / 3 days.

12. The method of laying the colored dry-mixed inorganic terrazzo according to any one of claims 1 to 10, characterized by, The method comprises the following steps: performing roughening treatment on the base layer; applying an interface agent on the surface of the base layer; pouring the color dry-mixed inorganic grinding stone mixed uniformly with water on the surface of the base layer; rough grinding; curing; fine grinding; and polishing.

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