Goldstone-like mortar composition, goldstone-like mortar and preparation method and application thereof

Abstract

The present application relates to the technical field of mortar processing, and discloses a golden imitation hemp stone mortar composition, a golden imitation hemp stone mortar, and a preparation method and application thereof.The composition contains the following components which are independently stored or stored in combination: a base component, a colored sand component, and water.The golden imitation hemp stone mortar prepared by using the composition has the advantages of simple preparation method, long material operability time, high tensile strength, and high compressive strength, and can also obtain the apparent morphology effect of golden hemp stone.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mortar processing, in particular to a golden imitation hemp stone mortar composition, a golden imitation hemp stone mortar and a preparation method and application thereof. BACKGROUND

[0002] With the rapid development of China's economy and the continuous improvement of urbanization level, the demand for decorative materials such as stone has increased.

[0003] Decorative stone can be generally divided into natural stone and artificial stone. Natural stone is favored due to its unique decorative effect and texture, but its development and use are limited due to limited resources, color difference in large-area paving, and excessive radioactivity. Artificial stone has the advantages of adjustable color, no radioactivity, no pollution, and reusability, and has become an important decorative material in the current decorative stone industry.

[0004] CN113135706A discloses an artistic concrete based on inorganic artificial stone processing waste and a preparation method thereof. The artistic concrete effectively solves the problems of resource waste and environmental pollution caused by the accumulation or landfill of part of the inorganic artificial stone waste, and has high artistic appreciation.

[0005] CN114276078A discloses an inorganic stone panel containing artificial stone waste and a preparation method thereof. The method dries the waste stone powder to control its water content to not more than 2%, and the prepared panel has no stain marks and good wear resistance.

[0006] However, the prior art has a complicated method for preparing decorative materials, and the prepared materials have the problems of short operability time, poor tensile strength, and poor compressive strength. SUMMARY

[0007] The present application aims to overcome the defects of short operability time, poor tensile strength, and poor compressive strength of the decorative materials in the prior art.

[0008] To achieve the above-mentioned purpose, the present application provides a golden imitation hemp stone mortar composition, which contains the following components independently stored or mixed stored in two or more:

[0009] a base component, a colored sand component, and water;

[0010] The base component contains 18-24% of white cement, 14-20% of heavy calcium, 52-62% of quartz sand, 1-4% of glue powder, 0.05-0.25% of cellulose ether, 0.1-0.5% of wood fiber, 0.05-0.15% of water reducing agent, 0.1-0.5% of thixotropic lubricant, 0.1-0.4% of hydrophobic agent, 0.05-0.15% of sodium gluconate, and 0.01-0.05% of starch ether, based on the total mass of the base component;

[0011] The colored sand component contains 8-15% of yellow sand, 35-43% of white sand, and 47-53% of transparent glass sand, based on the total mass of the colored sand component;

[0012] The quartz sand is a combination of coarse quartz sand and fine quartz sand in a mass ratio of 1-3:1;

[0013] The cellulose ether is a combination of cellulose A and cellulose B in a mass ratio of 1-3:1;

[0014] The mass ratio of the base component, the colored sand component, and the water is 2-4:1:0.6-0.8.

[0015] The second aspect of the present application provides a method for preparing a golden hemp stone mortar, which comprises mixing the components in the composition of the first aspect.

[0016] The specific operation of mixing the components in the composition comprises:

[0017] (1) first mixing the components in the base component to obtain a mixture I; and

[0018] second mixing the components in the colored sand component to obtain a mixture II;

[0019] (2) third mixing the mixture I with water to obtain a mixture III, and placing the mixture III in a mold for molding treatment to obtain a molded material I;

[0020] (3) first coating treatment of the mixture II to coat it on the surface of the molded material I to obtain a golden hemp substrate, and static treatment of the golden hemp substrate to obtain a molded material II;

[0021] (4) second coating treatment of the curing agent to coat it on the surface of the molded material II; wherein the amount of the curing agent is 0.1-0.3 kg / m 2 .

[0022] The third aspect of the present application provides the imitation golden hemp stone mortar prepared by the method of the second aspect.

[0023] The fourth aspect of the present application provides the application of the imitation golden hemp stone mortar of the third aspect in decorative materials.

[0024] The present application cooperates heavy calcium, quartz sand and cellulose ether with white cement and powder, and forms imitation golden hemp stone mortar composition by cooperating with yellow sand, white hemp sand and transparent glass sand. The imitation golden hemp stone mortar material prepared by the composition has the characteristics of long operability time, high tensile strength and high compressive strength, and the appearance morphology effect of golden hemp stone can also be obtained.

[0025] The method for preparing imitation golden hemp stone mortar provided by the present application also has the characteristics of simple process and convenient operation. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is the appearance effect schematic diagram of the imitation golden hemp stone mortar prepared by example 1 of the present application.

[0027] Figure 2 is the appearance effect schematic diagram of the imitation golden hemp stone mortar prepared by comparative example 5 of the present application. DETAILED DESCRIPTION

[0028] The endpoints of the ranges and any values disclosed herein are not limited to the precise values stated. The endpoints of the ranges and any values should be interpreted as approximately between the stated values. These ranges and values are understood to encompass any range or value that is near one or both of the stated values even one having only one of the stated values. For values which are less than one, includes one if the value is one. For values which are greater than one, includes one if the value is one. For ranges, endpoints are included in the ranges.

[0029] In the present application, the room temperature or normal temperature represents 25±2℃ unless otherwise stated.

[0030] In the present application, the cellulose ether is a high molecular compound in which the hydrogen of the hydroxyl group in the cellulose molecule is replaced by a hydrocarbon group and has an ether bond structure unless otherwise stated.

[0031] In the present application, the wood fiber is an organic flocculent fiber material prepared by chemical treatment and mechanical processing of natural renewable wood unless otherwise stated.

[0032] In the present application, the starch ether is a general term for denatured starch containing an ether bond structure in the molecule, also known as etherified starch unless otherwise stated.

[0033] In the present application, the CAS number of sodium gluconate is 527-07-1 unless otherwise stated.

[0034] As described above, the first aspect of the present application provides a kind of imitation golden hemp stone mortar composition, the composition contains the following components independently stored or more than two mixed storage:

[0035] Base component, color sand component, water;

[0036] With the total mass of the base component as the basis, the base component contains 18-24 mass% of white cement, 14-20 mass% of heavy calcium, 52-62 mass% of quartz sand, 1-4 mass% of glue powder, 0.05-0.25 mass% of cellulose ether, 0.1-0.5 mass% of wood fiber, 0.05-0.15 mass% of water reducing agent, 0.1-0.5 mass% of thixotropic lubricant, 0.1-0.4 mass% of hydrophobic agent, 0.05-0.15 mass% of sodium gluconate, 0.01-0.05 mass% of starch ether;

[0037] With the total mass of the color sand component as the basis, the color sand component contains 8-15 mass% of yellow sand, 35-43 mass% of white hemp sand, 47-53 mass% of transparent glass sand;

[0038] The quartz sand is a combination of coarse quartz sand and fine quartz sand with a mass ratio of 1-3:1;

[0039] The cellulose ether is a combination of cellulose A and cellulose B with a mass ratio of 1-3:1;

[0040] The mass ratio of the base component, the color sand component, and the water is 2-4:1:0.6-0.8.

[0041] The present application uses coarse and fine quartz sand with a specific ratio and cellulose ether with a specific ratio to synergistically compound, which not only makes the base component prepared more operable, but also meets the initial crack resistance requirements of the mortar.

[0042] Preferably, with the total mass of the base component as the basis, the base component contains 20-22 mass% of white cement, 15-19 mass% of heavy calcium, 55-60 mass% of quartz sand, 2-3 mass% of glue powder, 0.1-0.2 mass% of cellulose ether, 0.2-0.4 mass% of wood fiber, 0.08-0.12 mass% of water reducing agent, 0.2-0.4 mass% of thixotropic lubricant, 0.1-0.3 mass% of hydrophobic agent, 0.08-0.12 mass% of sodium gluconate, and 0.02-0.04 mass% of starch ether. The inventor found during the research that the imitation golden hemp stone mortar prepared by using the specific embodiment of the preferred case can have higher bending strength and compressive strength.

[0043] In the present application, the white cement in the imitation golden hemp stone mortar composition is to improve the flexural strength and compressive strength of the prepared imitation golden hemp stone mortar material. Too high content of white cement will lead to the imitation golden hemp stone mortar material to reduce the salt efflorescence resistance (obvious efflorescence) while meeting the performance requirements of flexural strength and compressive strength. Too low content of white cement will lead to the imitation golden hemp stone mortar material to reduce the flexural strength and compressive strength, which cannot meet the requirements of industry standards. Moreover, the present inventors found that by controlling the mass percentage content of white cement in the imitation golden hemp stone mortar composition to be 18-24%, and combining with other technical features in the technical solutions provided in the present application, the prepared imitation golden hemp stone mortar can have more excellent flexural strength and compressive strength under the premise of ensuring salt efflorescence resistance.

[0044] Preferably, the heavy calcium is a combination of coarse heavy calcium and fine heavy calcium with a content mass ratio of 1:1-2, and the whiteness of the heavy calcium is not less than 80%.

[0045] More preferably, the average particle size of the coarse heavy calcium is 0.057-0.1 mm, and the average particle size of the fine heavy calcium is 0.038-0.05 mm.

[0046] Preferably, the particle size range of the coarse quartz sand is 0.25-0.45 mm, and the particle size range of the fine quartz sand is 0.1-0.22 mm.

[0047] Preferably, the quartz sand is a combination of coarse quartz sand and fine quartz sand with a content mass ratio of 1.5-2.5:1. The present inventors found in the research process that the imitation golden hemp stone mortar prepared by using the specific embodiment of the preferred case has a longer workable time and a smaller water absorption within 4 hours.

[0048] Preferably, the 25℃ viscosity of the cellulose A is 14000-16000 mm 2 / s, and the 25℃ viscosity of the cellulose B is 3000-6000 mm 2 / s.

[0049] Preferably, the cellulose ether contains a combination of cellulose A and cellulose B with a mass ratio of 1.5-2.5:1. The present inventors found in the research process that the imitation golden hemp stone mortar prepared by using the specific embodiment of the preferred case can obtain a longer workable time.

[0050] Preferably, based on the total mass of the colored sand component, the colored sand component contains 10-12 mass% of yellow sand, 37-39 mass% of white hemp sand, and 49-51 mass% of transparent glass sand.

[0051] More preferably, the particle size of the yellow sand ranges from 0.45 mm to 0.9 mm, the particle size of the white sand ranges from 0.3 mm to 0.45 mm, and the particle size of the transparent glass sand ranges from 1.25 mm to 2.5 mm.

[0052] Preferably, the mass ratio of the base component, the colored sand component, and the water ranges from 2.5-3.5:1:0.65-0.75. The inventors have found that, in this preferred case, a gold-mimicking hempstone mortar with more excellent comprehensive performance and a more gold-mimicking appearance can be prepared.

[0053] As described above, the second aspect of the present application provides a method for preparing a gold-mimicking hempstone mortar, which comprises mixing the components in the composition of the first aspect.

[0054] The specific operation of mixing the components in the composition comprises:

[0055] (1) first mixing the components in the base component to obtain a mixture I; and

[0056] second mixing the components in the colored sand component to obtain a mixture II;

[0057] (2) third mixing the mixture I with water to obtain a mixture III, and placing the mixture III in a mold for molding to obtain a molded material I;

[0058] (3) first coating the mixture II on the surface of the molded material I to obtain a gold-mimicking hemp base, and placing the gold-mimicking hemp base for standing to obtain a molded material II;

[0059] (4) second coating a curing agent on the surface of the molded material II; wherein the amount of the curing agent ranges from 0.1 kg / m2 to 0.3 kg / m2. 2 .

[0060] It should be noted that the present application does not have special requirements for the feeding order and feeding method of mixing the components in the base component, and known methods in the art can be used for feeding. For example, in the base component of the present application, white cement, heavy calcium, glue powder, cellulose ether, wood fiber, water reducing agent, thixotropic lubricant, water repellent, sodium gluconate, starch ether, and quartz sand are added into a mixer for mixing.

[0061] According to a particularly preferred embodiment of the present application, in step (1), the operation of mixing each component in the base component includes: adding white cement, heavy calcium, powder, cellulose ether, wood fiber, water reducing agent, thixotropic lubricant, water repellent, sodium gluconate, starch ether and quartz sand into a mixer at a temperature of 20-40℃, stirring at a speed of 50-80 rpm for at least 5 min to obtain a mixture I.

[0062] It should be noted that the present application does not have special requirements for the feeding order and feeding method of mixing each component in the colored sand component, and known methods in the art can be used for feeding. For example, in the colored sand component of the present application, yellow sand, white sand and transparent glass sand are mixed together in a mixer.

[0063] Preferably, in step (1), the operation of mixing each component in the colored sand component includes: adding yellow sand, white sand and transparent glass sand into a mixer at a temperature of 20-40℃, stirring at a speed of 50-80 rpm for at least 3 min to obtain a mixture II.

[0064] Preferably, in step (2), the third mixing is carried out in a handheld mixer, and the operation of the third mixing includes: first stirring the mixture I with water at a speed of 500-950 rpm for 1-3 min, and then stirring the obtained mixture at a speed of 500-950 rpm for 1-3 min after standing for 4-8 min to obtain a mixture III.

[0065] Preferably, in step (2), the operation of the forming treatment includes: placing the mixture III in a mold with a thickness of 3-6 mm, and flattening the mixture III to obtain a formed material I with a flatness deviation of not more than 3 mm.

[0066] Preferably, in step (3), the conditions of the first coating treatment at least satisfy: a coating angle of 90-180°, a coating frequency of not less than 2 times, and a coating pressure of 2.0-3.0 bar.

[0067] Preferably, in step (3), the conditions of the standing treatment at least satisfy: a standing time of 20-30 h and a standing temperature of 5-35℃.

[0068] Preferably, in step (4), the conditions of the second coating treatment at least satisfy: a coating angle of 90-180° and a coating frequency of not less than 2 times.

[0069] It should be noted that the present application does not have special requirements for the order of the coating angles in the first coating treatment and the second coating treatment, for example, when the coating times are 2 times, the angles of the two coatings can be the same, or the first coating can be performed at a small angle and the second coating can be performed at a large angle, or the first coating can be performed at a large angle and the second coating can be performed at a small angle; at the same time, when the coating angle is 90-180° during the first coating treatment, it means that the angle between the nozzle and the plane where the molding material I is located during spraying is 90-180°; when the coating angle is 90-180° during the second coating treatment, it means that the angle between the nozzle and the plane where the molding material II is located during spraying is 90-180°.

[0070] As described above, the third aspect of the present application provides a golden imitation hemp stone mortar prepared by the method of the second aspect.

[0071] As described above, the fourth aspect of the present application provides the use of the golden imitation hemp stone mortar of the third aspect in decorative materials.

[0072] The present application will be described in detail below through examples. In the following examples, various raw materials used are commercially available unless otherwise specified.

[0073] White cement: P.W 42.5 grade, purchased from Jiangxi Yinsun White Cement Co., Ltd.;

[0074] Coarse heavy calcium: whiteness 80%, average particle size 0.074 mm, purchased from Jiangxi Guangyuan Chemical Industry Co., Ltd.;

[0075] Fine heavy calcium: whiteness 80%, average particle size 0.045 mm, purchased from Jiangxi Guangyuan Chemical Industry Co., Ltd.;

[0076] Coarse quartz sand: particle size 0.25-0.45 mm, purchased from Chenzhou Xingjia New Material Co., Ltd.;

[0077] Fine quartz sand: particle size 0.1-0.22 mm, purchased from Chenzhou Xingjia New Material Co., Ltd.;

[0078] Powder: re-dispersible latex powder, brand Wacker 7031H, purchased from Wacker Chemical (China) Co., Ltd.;

[0079] Cellulose A: viscosity 15000 mm 2 at 25℃, brand GMC1420, purchased from Shanghai Huiguang Fine Chemical Co., Ltd.;

[0080] Cellulose B: viscosity 4000 mm 2 ​Sika®-SBR / s, brand HK4M, purchased from Hekun Tianpu Chemical Co., Ltd.

[0081] Wood fiber: PWC-500, purchased from Ridenmell (Shanghai) Fiber Trade Co., Ltd.

[0082] Water reducing agent: Melment F10, purchased from BASF (China) Co., Ltd.

[0083] Thixotropic lubricant: OPTIBENT 602, purchased from BYK-Chemie Co., Ltd.

[0084] Hydrophobic agent: NT 10, purchased from Shanghai Longhu Fine Chemical Co., Ltd.

[0085] Starch ether: CASUCOL 301, purchased from Avibelle International Trade (Shanghai) Co., Ltd.

[0086] Yellow sand: particle size 0.45-0.9 mm, purchased from Hebei Shifeng Mining Processing Factory

[0087] White sand: particle size 0.3-0.45 mm, purchased from Guangzhou Shangyang New Material Co., Ltd.

[0088] Transparent glass sand: particle size 1.25-2.5 mm, purchased from Guangzhou Shangyang New Material Co., Ltd.

[0089] Curing agent: SINO-361, purchased from Xiamen Zingsno New Material Co., Ltd.

[0090] In the following examples, the total mass of the base component is 1 t.

[0091] In the following examples, the amount of the mixed material II coated in each coating process in the first coating process is 2 kg / m 2 .

[0092] In the following examples, the amount of the curing agent coated in each coating process in the second coating process is 0.2 kg / m 2 .

[0093] Example 1

[0094] The present example provides a method for preparing a golden sand mortar, which comprises:

[0095] S1: at room temperature, 20 mass% of white cement, 8 mass% of coarse heavy calcium, 10 mass% of fine heavy calcium, 2.5 mass% of powder, 0.13 mass% of cellulose A, 0.07 mass% of cellulose B, 0.3 mass% of wood fiber, 0.1 mass% of water reducing agent, 0.3 mass% of thixotropic lubricant, 0.2 mass% of hydrophobic agent, 0.1 mass% of sodium gluconate, 0.02 mass% of starch ether, 39 mass% of coarse quartz sand and 19.28 mass% of fine quartz sand are added into a stirrer, stirred at a speed of 60 rpm for 5 min to obtain a mixed material I; and

[0096] At room temperature, 11.5 mass% of yellow sand, 38.5 mass% of white hemp sand and 50 mass% of transparent glass sand are added into a stirrer, stirred at a speed of 60 rpm for 3.5 min to obtain a mixed material II;

[0097] S2: at room temperature, the mixed material I is stirred with water at a speed of 750 rpm for 2 min, and after standing for 5 min, it is stirred at a speed of 750 rpm for 2 min to obtain a mixed material III, and the mixed material III is poured into a mold with a thickness of 3 mm, and the mixed material III is leveled with a ruler to obtain a formed material I with a flatness deviation of 2 mm;

[0098] S3: at room temperature, the mixed material II is subjected to a first coating treatment by a spraying method at a coating angle I and a coating angle II in sequence, so that it is coated on the surface of the formed material I to obtain a golden hemp sand mortar matrix, and the golden hemp sand mortar matrix is placed for 24 h to obtain a formed material II;

[0099] S4: at room temperature, the curing agent is subjected to a second coating treatment by a spraying method at a coating angle III and a coating angle IV in sequence, so that it is coated on the surface of the formed material II to obtain a golden hemp stone mortar A1.

[0100] In the absence of special instructions, Example 2 of the present application adopts the same process flow as Example 1, except that the component contents of the golden hemp stone mortar composition used and the process parameters for preparing the golden hemp stone mortar are different, see Table 1.

[0101] Table 1

[0102]

[0103]

[0104] Example 3

[0105] The golden imitation stone was prepared according to the method of Example 1, except that the total amount of the quartz sand was 58.28% by mass, and the content mass ratio of the coarse quartz sand to the fine quartz sand was 1:1.

[0106] The content of the remaining components and the operation steps were the same as in Example 1, to obtain the golden imitation stone mortar A3.

[0107] Example 4

[0108] The golden imitation stone was prepared according to the method of Example 1, except that the total amount of the cellulose ether was 0.2% by mass, and the content mass ratio of the cellulose A to the cellulose B was 1:1.

[0109] The content of the remaining components and the operation steps were the same as in Example 1, to obtain the golden imitation stone mortar A4.

[0110] Example 5

[0111] The golden imitation stone was prepared according to the method of Example 1, except that the content mass ratio of the base component, the colored sand component, and the water was 3:1:0.8.

[0112] The content of the remaining components and the operation steps were the same as in Example 1, to obtain the golden imitation stone mortar A5.

[0113] Example 6

[0114] The same process flow as in Example 1 was adopted in this example, except that:

[0115] S1: the same as in Step S1 in Example 1;

[0116] S2: under room temperature conditions, the mixture I and the water were stirred at a speed of 750 rpm for 2 min using a handheld mixer, and then the mixture was left to stand for 5 min before being stirred at a speed of 750 rpm for 2 min, to obtain a mixture III. The mixture II and the mixture III were stirred at a speed of 750 rpm for 2 min, to obtain a mixture IV. The mixture IV was poured into a mold with a thickness of 3 mm, and the mixture III was leveled with a ruler so that the flatness deviation of the mixture III from the horizontal plane was 3 mm. After being left to stand for 24 h, a shaped material III was obtained.

[0117] S3: under room temperature conditions, the curing agent was subjected to a second coating treatment by a spraying method at coating angle III and coating angle IV in sequence, so that it was coated on the surface of the shaped material III, to obtain a golden imitation stone mortar A6.

[0118] Comparative Example 1

[0119] The imitation golden hemp stone was prepared according to the method of Example 1, except that the mass ratio of the base component, the colored sand component, and the water was 3:1:1.5.

[0120] The remaining component contents and the operation steps were the same as those of Example 1, and the imitation golden hemp stone mortar DA1 was obtained.

[0121] Comparative Example 2

[0122] The imitation golden hemp stone was prepared according to the method of Example 1, except that the total amount of the quartz sand was 58.28 mass%, and the mass ratio of the coarse quartz sand to the fine quartz sand was 0.5:1.

[0123] The remaining component contents and the operation steps were the same as those of Example 1, and the imitation golden hemp stone mortar DA2 was obtained.

[0124] Comparative Example 3

[0125] The imitation golden hemp stone was prepared according to the method of Example 1, except that the total amount of the cellulose ether was 0.2 mass%, and the mass ratio of the cellulose A to the cellulose B was 4:1.

[0126] The remaining component contents and the operation steps were the same as those of Example 1, and the imitation golden hemp stone mortar DA3 was obtained.

[0127] Comparative Example 4

[0128] The imitation golden hemp stone was prepared according to the method of Example 1, except that:

[0129] DS1: 15 mass% of white cement, 10 mass% of coarse heavy calcium, 13 mass% of fine heavy calcium, 2.5 mass% of powder, 0.13 mass% of cellulose A, 0.07 mass% of cellulose B, 0.3 mass% of wood fiber, 0.1 mass% of water reducing agent, 0.3 mass% of thixotropic lubricant, 0.2 mass% of hydrophobic agent, 0.1 mass% of sodium gluconate, 0.02 mass% of starch ether, 39 mass% of coarse quartz sand, and 19.28 mass% of fine quartz sand were added into a blender at room temperature, and stirred at a speed of 60 rpm for 5 min to obtain a mixture I.

[0130] The remaining component contents and the operation steps were the same as those of Example 1, and the imitation golden hemp stone mortar DA4 was obtained.

[0131] Comparative Example 5

[0132] The imitation golden hemp stone was prepared according to the method of Example 1, except that:

[0133] DS1: 26 mass% of white cement, 5 mass% of coarse heavy calcium, 7 mass% of fine heavy calcium, 2.5 mass% of powder, 0.13 mass% of cellulose A, 0.07 mass% of cellulose B, 0.3 mass% of wood fiber, 0.1 mass% of water reducing agent, 0.3 mass% of thixotropic lubricant, 0.2 mass% of hydrophobic agent, 0.1 mass% of sodium gluconate, 0.02 mass% of starch ether, 39 mass% of coarse quartz sand and 19.28 mass% of fine quartz sand were added into a stirrer at room temperature, stirred at a speed of 60 rpm for 5 min to obtain a mixture I.

[0134] The content of the remaining components and the operation steps are the same as those in Example 1 to obtain the imitation golden ashlar mortar DA5.

[0135] Test Example

[0136] In the present application, the imitation golden ashlar mortar prepared by the examples and comparative examples is subjected to performance tests according to the building material industry standard JC / T1024-2019, the industry standard for performance tests is shown in Table 2, and the specific test results are shown in Tables 3 and 4.

[0137] Table 2

[0138] Item Industry standard requirement Operability time Coat spread without barrier (≥ 60 min) Initial drying resistance to cracking No cracks Water absorption (30 min, g) ≤2g Water absorption (240 min, g) ≤5g Flexural strength (28 d, MPa) ≥ 2.5 MPa Compressive strength (28 d, MPa) ≥ 4.5 MPa Tensile bond as-formed strength (MPa) ≥ 0.5 MPa Aged cycle tensile bond as-formed strength (MPa) ≥ 0.4 MPa Resistance to efflorescence No visible efflorescence, no dusting Resistance to staining ≤ 2 Weather resistance ≤ 1

[0139] Table 3

[0140]

[0141]

[0142] Table 4

[0143]

[0144] From the above results, it can be seen that the imitation golden ashlar mortar prepared by the method provided by the present application meets the index requirements of JC / T1024-2019 in terms of various performances.

[0145] The present application exemplarily provides a schematic diagram of the appearance effect of the imitation golden ashlar prepared by Example 1 of the present application, and a schematic diagram of the appearance effect of the imitation golden ashlar prepared by Comparative Example 5 of the present application, which are respectively shown in Figure 1 and Figure 2 .

[0146] Figure 1 is a schematic diagram of the appearance effect of the imitation golden ashlar prepared by Example 1 of the present application. From Figure 1As can be seen from the above, the imitation golden stone mortar prepared by the method has high surface smoothness, simple and natural color, uniform color distribution, bright color, and the mortar decoration effect is close to the appearance and texture of natural golden stone.

[0147] Figure 2 is a schematic diagram of the appearance effect of the imitation golden stone prepared by the present application comparative example 5. As can be seen from the above, Figure 2 As can be seen from the above, the imitation golden stone mortar prepared by directly mixing the base component and the colored sand component has a gray point distribution on the surface, the gray scale is uneven, the surface of the mortar is gray, dull and has no luster, and the appearance and texture are quite different from those of natural golden stone; therefore, the method cannot obtain the golden stone mortar with the appearance and decoration effect of golden stone.

[0148] The above describes the preferred embodiments of the present application, but the present application is not limited thereto. Within the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application, including the combination of various technical features in any other suitable manner, and these simple modifications and combinations should also be considered as the disclosed content of the present application, and all fall within the protection scope of the present application.

Claims

1. A simulated golden flint mortar composition, characterized in that, The composition contains the following components which are independently stored or mixed together: a base component, a colored sand component, water; The base component contains, based on the total mass of the base component, 18-24 mass% of white cement, 14-20 mass% of heavy calcium, 52-62 mass% of quartz sand, 1-4 mass% of glue powder, 0.05-0.25 mass% of cellulose ether, 0.1-0.5 mass% of wood fiber, 0.05-0.15 mass% of water reducing agent, 0.1-0.5 mass% of thixotropic lubricant, 0.1-0.4 mass% of hydrophobic agent, 0.05-0.15 mass% of sodium gluconate, 0.01-0.05 mass% of starch ether; The colored sand component contains, based on the total mass of the colored sand component, 8-15 mass% of yellow sand, 35-43 mass% of white sand, 47-53 mass% of transparent glass sand; The quartz sand is a combination of coarse quartz sand and fine quartz sand in a mass ratio of 1-3:1; The cellulose ether contains a combination of cellulose A and cellulose B in a mass ratio of 1.5-2.5:1; The cellulose A has a viscosity of 14000-16000 mm 2 / s at 25°C, and the cellulose B has a viscosity of 3000-6000 mm 2 / s at 25°C. The mass ratio of the base component, the colored sand component, and the water is 2-4:1:0.6-0.

8.

2. The composition of claim 1, wherein, The quartz sand is a combination of coarse quartz sand and fine quartz sand in a mass ratio of 1.5-2.5:

1.

3. The composition of claim 1 or 2, wherein the mass ratio of the base component, the colored sand component, and the water is 2.5-3.5:1:0.65-0.

75.

4. A method of preparing a golden sandstone imitation mortar, characterized in that, The method comprises mixing the components in the composition of any one of claims 1-3; The specific operation of mixing the components in the composition comprises: (1) first mixing the components in the base component to obtain a mixture I; and second mixing the components in the colored sand component to obtain a mixture II; (2) third mixing the mixture I with water to obtain a mixture III, and placing the mixture III in a mold for molding treatment to obtain a molded material I; (3) first coating treatment of the mixture II to coat it on the surface of the molded material I to obtain a golden imitation hemp matrix, and placing the golden imitation hemp matrix for standing treatment to obtain a molded material II; (4) performing a second coating treatment of a curing agent to coat the surface of the molding material II; wherein the amount of the curing agent is 0.1-0.3 kg / m 2 .

5. The method of claim 4, wherein, In step (3), the first coating treatment satisfies at least the following conditions: the coating angle is 90-180°, the coating times is not less than 2, and the coating pressure is 2.0-3.0 bar.

6. The method of claim 4, wherein, In step (3), the standing treatment satisfies at least the following conditions: the standing time is 20-30 h, and the standing temperature is 5-35℃.

7. The method of claim 4, wherein, In step (3), the second coating treatment satisfies at least the following conditions: the coating angle is 90-180°, and the coating times is not less than 2.

8. A golden imitation hemp stone mortar prepared by the method of any one of claims 4-7.

9. Use of the golden imitation hemp stone mortar of claim 8 in decorative materials.

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