Light-transmitting concrete aggregate and method for producing the same

Abstract

The application relates to the technical field of building materials, in particular to a light-transmitting concrete aggregate and a preparation method thereof, wherein the light-transmitting concrete aggregate comprises 50-80% acrylic powder, 10-20% magnetic particles and 5-30% steel slag particles in percentage by weight. Through the light-transmitting concrete aggregate and the preparation method thereof, the problems of complicated fiber arrangement, uneven distribution, poor concrete quality and high cost of existing light-transmitting concrete can be effectively solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building materials, in particular to a light-transmitting concrete aggregate and a preparation method thereof. BACKGROUND

[0002] With the progress of society, the construction engineering is continuously upgraded, and the demand for the function of concrete materials is more and more diversified. In order to ensure the heat preservation requirement of the indoor building and the light transmission and energy saving, the Hungarian architect Aron Losonczi invented the light-transmitting concrete, that is, many optical fibers are implanted into the concrete, the light is conducted by the optical fibers, and the light-transmitting concrete is formed. The wall made of the light-transmitting concrete seems like a screen or a fluorescent display, and the material has good light transmission performance and variable decorative effect, and has a wide application prospect in the fields of building lighting energy saving and building decoration.

[0003] Patent No. CN201110021994.1 discloses a method for preparing a cement-based light-transmitting material by applying a parallel arrangement method of optical fibers. The method pours the cement mortar into a test mold first, and then lays the treated optical fiber bundle in layers in the newly poured cement slurry in the test mold. The method is difficult to ensure the flatness and beauty of the fibers, and the operation needs to be completed within a limited time, which is difficult. Patent No. CN201110022019.2 discloses a method for preparing light-transmitting concrete by applying textile optical fiber technology. The method first weaves the optical fiber material into 3D and 2D fabrics by a multi-axial warp knitting machine, and then pours the newly mixed cement slurry into the fixed optical fiber material. Although this method is convenient in process, it lacks a mold that can firmly fix the woven optical fibers. When pouring the cement slurry, the position of the optical fibers will be affected, causing the optical fibers to bend, float and slide out of position. It is difficult to position the optical fibers, and the optical fibers cannot be uniformly distributed in the cement matrix, which affects the light transmission effect and the decorative effect of the light-transmitting concrete.

[0004] From the existing production and application mode of the light-transmitting concrete, it can be seen that the optical fibers are essential components. However, most of the existing light-transmitting concrete test blocks are made by drilling holes on the template of the light-transmitting surface of the test block to fix the inserted optical fibers, ensure the regularity of the light-transmitting points, and customize the pattern according to the design requirements. However, the disadvantage is that the workload of the optical fiber layout is large, the process is complicated, which seriously affects the work efficiency, and causes the cost to be too high to be widely popularized and applied. SUMMARY

[0005] To solve the above technical problems, the present application provides a light-transmitting concrete aggregate and a preparation method thereof, which can effectively solve the problems of complicated optical fiber layout, uneven distribution, poor concrete quality and high cost of the existing light-transmitting concrete.

[0006] The present application is realized by adopting the following technical solutions:

[0007] A light-transmitting concrete aggregate comprises 50-80% acrylic powder, 10-20% magnetic particles and 5-30% steel slag particles by weight percentage.

[0008] The density of the light-transmitting concrete aggregate is 1.61-3.23 g / cm 3 .

[0009] The density of the acrylic powder is 1.1-1.3 g / cm 3 , the density of the magnetic particles is 3.8-7.5 g / cm 3 , and the density of the steel slag particles is 3.1-3.6 g / cm 3 .

[0010] The particle size of the light-transmitting concrete aggregate is 1-5 mm, the light transmittance is >70%, and the crushing index is ≥90%.

[0011] The acrylic powder is obtained by crushing waste acrylic products.

[0012] The magnetic particles are obtained by crushing and screening waste magnets.

[0013] The particle size of the magnetic particles is 0.5-2.0 mm.

[0014] The steel slag particles are obtained by magnetic separation of waste.

[0015] The particle size of the steel slag particles is 0.5-2.0 mm.

[0016] A preparation method of a light-transmitting concrete aggregate comprises the following steps:

[0017] S1. Preparing acrylic powder, magnetic particles and steel slag particles respectively;

[0018] S2. Mixing the acrylic powder, magnetic particles and steel slag particles in proportion to form an aggregate mixture;

[0019] S3. Melting the aggregate mixture into a uniform mixture by hot melting method to form aggregate particles wrapped by acrylic.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] 1、The light-transmitting concrete aggregate prepared in the application uses acrylic as a light-transmitting material, as a basic component of the light-transmitting concrete aggregate, to solve the bonding problem that may occur in the application process of the light-transmitting concrete aggregate, the application wraps magnetic substances in acrylic, fully utilizes the magnetism in the steel slag particles and magnetic particles, can improve the bonding of the light-transmitting concrete aggregate, resists the separation of the light-transmitting concrete aggregate in the pouring process, and then makes the light-transmitting concrete aggregate more jointed together to form a light-transmitting body, and finally improves the light-transmitting effect. At the same time, it can also avoid the mortar filled between the aggregate particles, and avoid affecting the light-transmitting effect.

[0022] Further, since the application of steel slag in concrete has been limited by the amount of alkaline oxides, in the application, acrylic is used to wrap it, so that the oxides no longer affect the performance of the concrete, and the quality of the concrete is improved.

[0023] The light-transmitting concrete aggregate in the application not only can achieve good light-transmitting effect, but also can effectively solve the problem of uneven distribution of part of the aggregate. Compared with the technical solution of realizing light transmission by arranging optical fibers in the existing light-transmitting concrete, the application replaces optical fibers as light guide material, greatly simplifies the construction process, reduces labor cost, and the light-transmitting aggregate can be uniformly distributed in the concrete, and the light transmission effect is better.

[0024] 2、In the application, the density of the light-transmitting concrete aggregate is controlled to match the density of the cement mortar, so that the light-transmitting concrete aggregate can be better and uniformly distributed in the slurry, and the uneven distribution of the light-transmitting concrete aggregate caused by factors such as vibration in the forming process is avoided.

[0025] 3、In the application, all components can be obtained by simply treating waste, realizing the secondary utilization of waste, which is not only environmentally friendly but also lower in cost.

[0026] 4、The preparation method of the light-transmitting concrete aggregate in the application is simple, the preparation efficiency is high, and no additional process equipment is needed. BRIEF DESCRIPTION OF DRAWINGS

[0027] The application will be further described in detail below with reference to the drawings and specific embodiments of the application, in which:

[0028] Figure 1 It is a structural schematic diagram of the aggregate particles in the application;

[0029] Figure 2 It is a schematic diagram of the magnetic attraction connection of the aggregate particles in the application;

[0030] Markings in the figure:

[0031] 1, acrylic powder, 2, magnetic particles, 3, steel slag particles, 4, aggregate particles. DETAILED DESCRIPTION

[0032] Example 1

[0033] The present application comprises a light-transmitting concrete aggregate, comprising 50% acrylic powder 1, 20% magnetic particles 2 and 30% steel slag particles 3 by weight percentage. The density of the acrylic powder 1 is 1.1 g / cm 3 , the density of the magnetic particles 2 is 3.8 g / cm 3 , and the density of the steel slag particles 3 is 3.1 g / cm 3 .

[0034] The acrylic powder 1 is obtained by crushing waste acrylic products separated from construction waste. The magnetic particles 2 are obtained by crushing and screening waste magnets, which can be separated from waste doors and windows hardware and motors. The steel slag particles 3 are obtained by magnetic separation of waste materials, which can be waste materials after steelmaking in steel plants. Finally, the particle size of the light-transmitting concrete aggregate is 1-5 mm.

[0035] The preparation method of the light-transmitting concrete aggregate is as follows:

[0036] S1. Prepare the acrylic powder 1, magnetic particles 2 and steel slag particles 3 respectively.

[0037] S2. Mix the acrylic powder 1, magnetic particles 2 and steel slag particles 3 to form an aggregate mixture.

[0038] S3. Use hot melting method to melt the aggregate mixture into a uniform mixture to form aggregate particles 4 wrapped in acrylic.

[0039] It is observed that the particle size of the light-transmitting concrete aggregate is 1-5 mm. Referring to the drawings attached to the specification Figure 1 , the magnetic particles 2 and steel slag particles 3 are evenly distributed in the prepared aggregate particles 4 and can be well adsorbed together.

[0040] Fill the aggregate particles 4 into a non-light-transmitting cylinder, the diameter of which is 100 mm and the length is 200 mm. The gaps between the aggregate particles 4 are filled with dark basalt powder. One side of the cylinder is sealed with a light source hole with a diameter of 10 mm, and the other side is sealed with transparent glass. In a room with dim light, place a light source in the light source hole and observe that the transparent glass sealing end transmits light well. Referring to the drawings attached to the specification Figure 2, the aggregate particles 4 can be overlapped together to form the interconnected light-transmitting body.

[0041] Example 2

[0042] The present application includes a light-transmitting concrete aggregate, which comprises 70% acrylic powder 1, 15% magnetic particles 2 and 15% steel slag particles 3 in percentage by weight. The density of the acrylic powder 1 is 1.3 g / cm 3 , the density of the magnetic particles 2 is 7.5 g / cm 3 , and the density of the steel slag particles 3 is 3.6 g / cm 3 .

[0043] The sources and particle sizes of the components of the light-transmitting concrete aggregate are the same as those of Example 1, and the preparation method of the light-transmitting concrete aggregate is also the same as that of Example 1, which will not be described here.

[0044] Using the same observation method as that of Example 1, the magnetic particles 2 and the steel slag particles 3 are uniformly distributed in the prepared aggregate particles 4, which can be well adsorbed together in the aggregate particle 4 accumulation state, thereby forming the interconnected light-transmitting body.

[0045] Example 3

[0046] The present application includes a light-transmitting concrete aggregate, which comprises 80% acrylic powder 1, 15% magnetic particles 2 and 5% steel slag particles 3 in percentage by weight. The density of the acrylic powder 1 is 1.1 g / cm 3 , the density of the magnetic particles 2 is 3.8 g / cm 3 , and the density of the steel slag particles 3 is 3.1 g / cm 3 .

[0047] The sources and particle sizes of the components of the light-transmitting concrete aggregate are the same as those of Example 1, and the preparation method of the light-transmitting concrete aggregate is also the same as that of Example 1, which will not be described here.

[0048] Using the same observation method as that of Example 1, the magnetic particles 2 and the steel slag particles 3 are uniformly distributed in the prepared aggregate particles 4, which can be well adsorbed together in the aggregate particle 4 accumulation state, thereby forming the interconnected light-transmitting body.

[0049] Example 4

[0050] The present application includes a light-transmitting concrete aggregate, which comprises 75% acrylic powder 1, 10% magnetic particles 2 and 15% steel slag particles 3 in percentage by weight. The density of the acrylic powder 1 is 1.2 g / cm 3The density of the magnetic particles 2 is 5.0 g / cm 3 The density of the steel slag particles 3 is 3.4 g / cm 3 .

[0051] The sources and particle sizes of the components of the light-transmitting concrete aggregate are the same as those of Example 1, and the preparation method of the light-transmitting concrete aggregate is also the same as that of Example 1, which will not be described here.

[0052] The magnetic particles 2 and the steel slag particles 3 are uniformly distributed in the prepared aggregate particles 4, and the aggregate particles 4 can be well adsorbed together in a stacked state to form a connected light-transmitting body.

[0053] Example 5

[0054] The light-transmitting concrete aggregate comprises 50% acrylic powder 1, 20% magnetic particles 2 and 30% steel slag particles 3 by weight percentage. The density of the acrylic powder 1 is 1.3 g / cm 3 The density of the magnetic particles 2 is 7.5 g / cm 3 The density of the steel slag particles 3 is 3.6 g / cm 3 .

[0055] The sources and particle sizes of the components of the light-transmitting concrete aggregate are the same as those of Example 1, and the preparation method of the light-transmitting concrete aggregate is also the same as that of Example 1, which will not be described here.

[0056] The magnetic particles 2 and the steel slag particles 3 are uniformly distributed in the prepared aggregate particles 4, and the aggregate particles 4 can be well adsorbed together in a stacked state to form a connected light-transmitting body.

[0057] The light-transmitting concrete aggregate comprises 50% acrylic powder 1, 20% magnetic particles 2 and 30% steel slag particles 3 by weight percentage. The density of the acrylic powder 1 is 1.3 g / cm 3 The density of the magnetic particles 2 is 7.5 g / cm 3 The density of the steel slag particles 3 is 3.6 g / cm 3 .

[0058] The corresponding detection results are shown in the following table:

[0059]

[0060] From the above data, the light-transmitting concrete aggregate density range is 1.61~3.23 g / cm 3 The light-transmitting concrete can cover the unmet needs of the existing conventional concrete, light-weight concrete and heavy-weight concrete, and can adapt to the preparation needs of different concrete and has better applicability. The light-transmittance is greater than 70%, which is beneficial to the light-transmitting effect of the concrete. The crushing index is greater than or equal to 90%, which indicates that the quality state of the light-transmitting concrete aggregate can meet different requirements of different projects.

[0061] In summary, the various corresponding transformation schemes made by the ordinary skilled in the art after reading the present application file without creative mental labor according to the technical scheme and technical concept of the present application all belong to the scope protected by the present application.

Claims

1. A method of making a light-transmitting concrete aggregate, characterized by: The light-transmitting concrete aggregate comprises 50-80% acrylic powder (1), 10-20% magnetic particles (2) and 5-30% steel slag particles (3) by weight percentage; the particle size of the light-transmitting concrete aggregate is 1-5 mm; the preparation method comprises the following steps: S1. acrylic powder (1), magnetic particles (2) and steel slag particles (3) are prepared respectively; S2. acrylic powder (1), magnetic particles (2) and steel slag particles (3) are mixed in proportion to form an aggregate mixture; S3. the aggregate mixture is melted into a uniform mixture by hot melting method to form aggregate particles wrapped by acrylic.

2. A method of making a light-transmitting concrete aggregate according to claim 1, characterized in that: The light-transmitting concrete aggregate has a density of 1.61 g / cm 3 3.23 g / cm 3 .

3. A method of making a light-transmitting concrete aggregate according to claim 2, characterized in that: The density of the sub-acrylic powder (1) is 1.1 g / cm 3 ~1.3 g / cm 3 The density of the magnetic particles (2) is 3.8 g / cm 3 ~7.5 g / cm 3 The density of the steel slag particles (3) is 3.1 g / cm 3 ~3.6 g / cm 3 .

4. A method of making a light-transmitting concrete aggregate according to claim 3, characterized in that: The light-transmitting concrete aggregate has a light transmittance of >70% and a crushing index of ≥90%.

5. A method of making a light-transmitting concrete aggregate according to claim 2, characterized in that: The acrylic powder (1) is obtained by crushing waste acrylic products.

6. A method of making a light-transmitting concrete aggregate according to claim 2, characterized in that: The magnetic particles (2) are obtained by crushing and screening waste magnets.

7. A method of making a light-transmitting concrete aggregate according to claim 6, characterized in that: The particle size of the magnetic particles (2) is 0.5-2.0 mm.

8. A method of making a light-transmitting concrete aggregate according to claim 2, characterized in that: The steel slag particles (3) are obtained by magnetic separation of waste.

9. A method of making a light-transmitting concrete aggregate according to claim 8, characterized in that: The particle size of the steel slag particles (3) is 0.5-2.0 mm.

Images