阅读说明：本技术 一种仿水磨石的预制玻璃纤维增强板及制备方法 (Terrazzo-imitated prefabricated glass fiber reinforced plate and preparation method thereof ) 是由 倪立莹 连珍 韩煜 陈征 刘天择 黄佳丽 于 2021-07-15 设计创作，主要内容包括：本发明属于建筑施工技术领域,特别涉及一种仿水磨石的预制玻璃纤维增强板及制备方法,目的在于解决带有弧度的预制玻璃纤维增强板制作过程中,损耗大,容易变形的问题。它包括水泥、骨料、白砂、白色粉、红色粉、黑色粉、黄色粉、胶浆以及水,按照一定的比例在常温条件下制备得到。通过在通过调色配比以及细骨料的添加,使得本就极具可塑性的GRC板材,在外观及质感上与水磨石更加相仿,从而达到了水磨石无法灵活造型及曲面的功能。在达到外观效果的同时,也保证了GRC板的质轻高强特性。(The invention belongs to the technical field of building construction, and particularly relates to a terrazzo-like prefabricated glass fiber reinforced plate and a preparation method thereof, aiming at solving the problems of large loss and easy deformation in the manufacturing process of a prefabricated glass fiber reinforced plate with a radian. The cement-based color paste is prepared from cement, aggregate, white sand, white powder, red powder, black powder, yellow powder, mucilage and water according to a certain proportion at normal temperature. Through the mixing of colors proportion and the addition of fine aggregate, the GRC plate with plasticity is more similar to the terrazzo in appearance and texture, so that the function that the terrazzo cannot be flexibly molded and curved is achieved. The light and high-strength characteristics of the GRC plate are ensured while the appearance effect is achieved.)

1. A terrazzo-like prefabricated glass fiber reinforced panel, comprising: cement, aggregate, white sand, white powder, red powder, black powder, yellow powder, mucilage and water, wherein the single dosage ratio of each component is (kg/m)³) The following were used:

2. the terrazzo-like prefabricated glass fiber reinforced panel of claim 1, wherein the red powder is a positive red powder, the black powder is a pure black powder, and the white powder is a pure white powder.

3. The terrazzo-like precast glass fiber reinforced board according to claim 1, wherein the aggregate is fine aggregate, and the fine aggregate is artificial sand having a diameter of less than 5 mm.

4. The terrazzo-like precast glass fiber reinforced sheet according to claim 1, wherein the fineness modulus of the white sand is 2.3 to 3.0.

5. The method for preparing a terrazzo-like prefabricated glass fiber reinforced panel according to any one of claims 1 to 4, characterized in that it comprises the following steps:

step S1, manufacturing a wood mold by using the wood template and the wood board ribs, connecting the wood board ribs in all directions by using the plywood as a surface through the ductility of wood to form a double-curved surface; finally, filling gaps between the wood boards through atomic batch compensation, and enabling the lines of the whole wood model to be smooth; judging the quality of the surface of the die through a highlight flashlight and the smoothness of a hand touch;

step S2, adding cement, aggregate, white sand, white powder, red powder, black powder, yellow powder, mucilage and water into the wood mould prepared in the step S1 according to the proportion, and uniformly stirring;

and step three, curing to the designed strength, thereby finishing the manufacture of the terrazzo-like prefabricated glass fiber reinforced plate.

Technical Field

The invention belongs to the technical field of building construction, and particularly relates to a terrazzo-like prefabricated glass fiber reinforced plate and a preparation method thereof.

Background

The general production and manufacturing methods of the glass fiber reinforced plate can be divided into:

(1) and (3) a spraying process: the spray process is the earliest and most used method of manufacturing glass fibre reinforced cement (GRC) articles, including manual spraying and automatic spraying. The first British building research institute (BRE) made glass fiber reinforced cement (GRC) articles in this way in the early 70 th century. The spraying process, whether manual or mechanical, requires specially trained operators and specialized equipment.

(2) The premixing process comprises the following steps: the premixing process is that the chopped glass fiber and the cement mortar matrix are stirred together to form a uniform glass fiber cement mixture, and then the product is prepared by a pouring or spraying method. The premixing process can be divided into a premixing pouring process and a premixing spraying process according to different molding methods. The pre-mix casting process is similar to the process of precast concrete products, and is often supplemented with a vibration process during the casting process.

However, the existing prefabricated glass fiber reinforced plate with radian has the problems of large loss, easy deformation and the like in the manufacturing process.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information is prior art that is known to a person skilled in the art.

Disclosure of Invention

The invention provides a terrazzo-like prefabricated glass fiber reinforced plate and a preparation method thereof, wherein the GRC plate with plasticity is more similar to terrazzo in appearance and texture by adjusting color proportion and adding fine aggregate, so that the function that the terrazzo cannot be flexibly molded and curved is achieved. The light and high-strength characteristics of the GRC plate are ensured while the appearance effect is achieved.

In order to solve the technical problems, the invention comprises the following technical scheme:

a prefabricated glass fiber reinforced plate imitating terrazzo comprises cement, aggregate, white sand, white powder, red powder, black powder, yellow powder, mucilage and water, and the single-component proportion (kg/m) of each component³) The following were used:

compared with the prior art, the invention has the following advantages and beneficial effects:

the invention provides a terrazzo-like prefabricated glass fiber reinforced board which comprises cement, aggregate, white sand, white powder, red powder, black powder, yellow powder, mucilage and water, wherein the cement, the aggregate, the white sand, the white powder, the red powder, the black powder, the yellow powder, the mucilage and the water are prepared according to a certain proportion at normal temperature. Through the mixing of colors proportion and the addition of fine aggregate, the GRC plate with plasticity is more similar to the terrazzo in appearance and texture, so that the function that the terrazzo cannot be flexibly molded and curved is achieved. The light and high-strength characteristics of the GRC plate are ensured while the appearance effect is achieved.

Further, the red toner is positive red toner, the black toner is pure black toner, and the white toner is pure white toner.

Further, the aggregate is fine aggregate, and the fine aggregate is artificial sand with the diameter smaller than 5 mm.

Furthermore, the fineness modulus of the white sand is 2.3-3.0.

The invention also provides a preparation method of the terrazzo-imitated prefabricated glass fiber reinforced plate, which comprises the following steps:

step S1, manufacturing a wood mold by using the wood template and the wood board ribs, connecting the wood board ribs in all directions by using the plywood as a surface through the ductility of wood to form a double-curved surface; finally, filling gaps between the wood boards through atomic batch compensation, and enabling the lines of the whole wood model to be smooth; judging the quality of the surface of the die through a highlight flashlight and the smoothness of a hand touch;

step S2, adding cement, aggregate, white sand, white powder, red powder, black powder, yellow powder, mucilage and water into the wood mould prepared in the step S1 according to the proportion, and uniformly stirring;

and step three, curing to the designed strength, thereby finishing the manufacture of the terrazzo-like prefabricated glass fiber reinforced plate.

Detailed Description

The invention provides a terrazzo-like prefabricated glass fiber reinforced plate and a preparation method thereof, which are further described in detail by combining specific embodiments. The advantages and features of the present invention will become more apparent in conjunction with the following description.

In the embodiment of the invention, the cement is P.II 52.5 ordinary portland cement, and the particle size is 20-30 microns; the aggregate comprises coarse aggregate and fine aggregate, the coarse aggregate is stone, the fine aggregate is artificial sand with the diameter less than 5mm, and the water is common tap water.

When in preparation, the method of dry mixing color matching powder (comprising white powder, red powder, black powder and yellow powder), aggregate and mucilage firstly and then adding water for stirring can be adopted; or the cement can be prepared by a method of firstly stirring the cement and then adding color matching powder (comprising white powder, red powder, black powder and yellow powder) into the cement and stirring the mixture. The red toner is positive red toner, the black toner is pure black toner, and the white toner is pure white toner.

The preparation method comprises the following steps:

the prefabricated glass fiber reinforced plate imitating the terrazzo is prepared according to the formula, and comprises the following steps:

step S1, manufacturing a wood mold by using the wood template and the wood board ribs, connecting the wood board ribs in all directions by using the plywood as a surface through the ductility of wood to form a double-curved surface; finally, filling gaps between the wood boards through atomic batch compensation, and enabling the lines of the whole wood model to be smooth; judging the quality of the surface of the die through a highlight flashlight and the smoothness of a hand touch; (ii) a

Step S2, adding cement, aggregate, white sand, white powder, red powder, black powder, yellow powder, mucilage and water into the wood mould prepared in the step S1 according to the proportion, and uniformly stirring;

and step S3, curing to the designed strength, thereby finishing the manufacture of the prefabricated glass fiber reinforced plate imitating the terrazzo.

Through the mixing of colors and the addition of fine aggregate, the GRC board with plasticity is more similar to terrazzo in appearance and texture, so that the function that the terrazzo cannot be flexibly molded and curved is achieved. The light and high-strength characteristics of the GRC plate are ensured while the appearance effect is achieved. The following are specific examples:

example 1

The single formula dosage proportion (kg/m) of each component of the prefabricated terrazzo-like glass fiber reinforced plate³) As shown in table 1. The single dosage ratio is 1m³The weight ratio of each component in the prefabricated glass fiber reinforced plate imitating the terrazzo.

TABLE 1 formulation (kg/m) of prefabricated terrazzo-like glass fiber reinforced plate³)

Cement

Aggregate material

Aggregate and white sand

White powder

Red toner

Black toner

Yellow powder

Mucilage

Water (W)

1000

50

40

1.4*10-3

4*10-3

0.4*10-3

6*10-3

4.23

15

In summary, the prefabricated glass fiber reinforced board imitating the terrazzo provided by the invention has the advantages that the GRC board with plasticity is more similar to the terrazzo in appearance and texture by the aid of the cement, the aggregate, the white sand, the white powder, the red powder, the black powder, the yellow powder, the mucilage and the water through the color mixing proportion and the addition of the fine aggregate, so that the function that the terrazzo cannot be flexibly shaped and curved is achieved. The light and high-strength characteristics of the GRC plate are ensured while the appearance effect is achieved.

The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples. The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.