Light-transmitting concrete member, method for producing the same, and use thereof

Abstract

The application relates to a light-transmitting concrete component and a preparation method and application thereof. The light-transmitting concrete component comprises concrete and optical fibers, the optical fibers are glass optical fibers, the outer surface of the glass optical fibers is provided with a zirconium oxide film, and the thickness of the zirconium oxide film is 30-50 mu m. The technical problem to be solved is how to provide a light-transmitting concrete which can improve the corrosion resistance of the glass optical fibers, improve the light-transmitting property of the light-transmitting concrete, and keep high strength, so as to improve the performance of the light-transmitting concrete.

Description

TECHNICAL FIELD

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

[0002] The light-transmitting concrete component includes concrete and optical fiber, both ends of the optical fiber are arranged on two surfaces of the light-transmitting concrete component respectively, so that light is transmitted from one end to the other end of the optical fiber, realizing light transmission, so the optical fiber is the most important component of the light-transmitting concrete.

[0003] In the prior art, because the concrete is alkaline, the optical fiber in the concrete is corroded, in order to prevent the optical fiber from being corroded, the problem is usually solved from the direction of improving the corrosion resistance of the optical fiber, the main methods include: using corrosion-resistant coating to coat the surface of the optical fiber or using optical fiber with self-corrosion resistance. For using corrosion-resistant coating to coat the surface of the optical fiber, the corrosion-resistant coating can form good compatibility with the environment, and can reduce the influence of environmental corrosion factors on the optical fiber under certain conditions, but many factors need to be considered for the setting of the corrosion-resistant layer, such as: flexibility of the optical fiber, compatibility of the optical fiber material and the corrosion-resistant layer material, chemical compatibility, bonding property with the concrete and thermal expansion coefficient, etc., which will affect the performance of the light-transmitting concrete. However, the existing polymer corrosion-resistant coating performs poorly in chemical compatibility and flexibility of the optical fiber. According to relevant literature reports, most inorganic films can only resist corrosion of a part of chemical substances, and are also prone to react with components in the optical fiber, resulting in change of the performance of the optical fiber and decrease of the performance of the light-transmitting concrete. For using optical fiber with self-corrosion resistance, other types of optical fiber, such as plastic optical fiber or quartz optical fiber, are usually selected according to the components of the concrete, but the light-transmitting rate of the light-transmitting concrete with plastic optical fiber or quartz optical fiber is generally low, and the effect of increasing the number of optical fibers to improve the light-transmitting rate is not obvious, and the increase of the number of optical fibers will cause great loss of the strength of the concrete. SUMMARY

[0004] The main purpose of the present application is to provide a kind of light-transmitting concrete and its preparation method and application, and the technical problem to be solved is how to provide a kind of light-transmitting concrete, which can improve the corrosion resistance of glass optical fiber, improve the light-transmitting property of the light-transmitting concrete, and also maintain high strength, thereby improving the performance of the light-transmitting concrete.

[0005] The purpose of the present application and the technical problem are realized by adopting the following technical scheme. According to the light-transmitting concrete component provided by the present application, the light-transmitting concrete component includes concrete and optical fiber, the optical fiber is glass optical fiber, the outer surface of the glass optical fiber is provided with a zirconium oxide film, and the thickness of the zirconium oxide film is 30-50 μm.

[0006] Preferably, the light-transmitting concrete component, wherein the numerical aperture of the glass optical fiber is 0.5-1.0.

[0007] Preferably, the light-transmitting concrete component, wherein the total volume of the several glass optical fibers accounts for 2-6% of the total volume of the light-transmitting concrete component.

[0008] Preferably, the light-transmitting concrete component, wherein the glass optical fiber comprises a sheath and a core; the sheath comprises, in percentage by weight, SiO268-74%, B2O37-15% and Na2O 12-20%; the core comprises, in percentage by weight, B2O319-59%, La2O333-66% and BaO 0-47%.

[0009] The purposes and technical problems of the present application are also achieved by the following technical solutions. The present application provides a preparation method of a light-transmitting concrete component, which comprises the following steps:

[0010] 1) setting a zirconium oxide film on the surface of the glass optical fiber; the thickness of the zirconium oxide film is 30-50 μm;

[0011] 2) pouring the mortar into the glass optical fiber mold, performing vibration curing, cutting, polishing and polishing to obtain the light-transmitting concrete component.

[0012] Preferably, the preparation method of the light-transmitting concrete component, wherein the numerical aperture of the glass optical fiber is 0.5-1.0; the total volume of the several glass optical fibers accounts for 2-6% of the total volume of the light-transmitting concrete component.

[0013] Preferably, the preparation method of the light-transmitting concrete component, wherein the glass optical fiber comprises a sheath and a core; the sheath comprises, in percentage by weight, SiO268-74%, B2O37-15% and Na2O 12-20%; the core comprises, in percentage by weight, B2O319-59%, La2O333-66% and BaO 0-47%.

[0014] Preferably, the preparation method of the light-transmitting concrete component, wherein the setting method of the zirconium oxide film comprises: coating a zirconium oxide plating film solution on the surface of the glass optical fiber, drying at 70-80 °C for 10-30 min, then drying at 40-50 °C for 15-45 min, and finally drying at 20-30 °C for 20-60 min, and sintering to obtain the glass optical fiber provided with the zirconium oxide film.

[0015] Preferably, the preparation method of the light-transmitting concrete component, wherein the preparation method of the zirconium oxide plating film solution comprises:

[0016] 1) mixing zirconium oxychloride and ethanol solution, stirring to obtain a precursor solution;

[0017] 2) mixing yttrium oxide and concentrated nitric acid, heating, adding the precursor solution, stirring until the mixed solution is transparent;

[0018] 3) adding concentrated ammonia water until the solution does not produce white flocculent precipitate, filtering, washing to obtain a gel;

[0019] 4) adding nitric acid to the gel, heating and stirring until it is completely converted into a transparent sol;

[0020] 5) adding polyvinyl alcohol aqueous solution to the transparent sol to prepare the zirconia coating solution.

[0021] The purposes and technical problems of the present application are also achieved by the following technical solutions. According to the present application, a light-transmitting wall is provided, which comprises a light-transmitting concrete component.

[0022] By the above technical solutions, the light-transmitting concrete component, the preparation method and the application thereof provided by the present application have at least the following advantages:

[0023] A dense zirconium dioxide (ZrO2) film is prepared on the surface of the glass optical fiber, which can significantly improve the alkali resistance. When the glass optical fiber is applied to the concrete, the zirconium dioxide film can effectively isolate the concrete from the glass optical fiber, preventing the corrosion of the alkaline substances in the concrete on the glass optical fiber. In this way, the service life of the light-transmitting concrete is significantly prolonged. On the other hand, coating a layer of ZrO2 film on the surface of the glass optical fiber causes a certain roughness on the surface of the glass optical fiber, which can effectively enhance the bonding ability of the glass optical fiber and the concrete, preventing the separation of the glass optical fiber and the concrete after long-term use.

[0024] The present application focuses on improving the light-transmitting property of the light-transmitting concrete. First, glass optical fibers are used to provide the guarantee for light-transmitting property. On this basis, optimization is carried out from the perspective of the numerical aperture of the optical fiber. By carefully designing the formula of the core material and the skin material glass, high-refractive-index core material and low-refractive-index skin layer can be prepared, and then large-numerical-aperture glass optical fibers are prepared by using the core material and the skin material, so that the transmittance of the glass optical fiber is improved, and the light-transmitting property of the light-transmitting concrete is significantly improved, providing new possibilities for building and landscape design.

[0025] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application and can be implemented according to the content of the specification, the following will be described in detail with the preferred embodiments of the present application and with the help of the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1A schematic diagram of a fixed optical fiber template of the present application;

[0027] Figure 2 A schematic diagram of a mold groove of the present application. DETAILED DESCRIPTION

[0028] In order to further clarify the technical means adopted by the present application and the effects achieved by the present application, the following describes in detail the specific embodiments, structures, features and effects of a light-transmitting concrete member, a preparation method and application thereof according to the present application, with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "embodiments" do not necessarily refer to the same embodiment. In addition, the specific features, structures or characteristics in one or more embodiments can be combined in any suitable form.

[0029] The present application provides a light-transmitting concrete member, as shown in Figures 1-2 The light-transmitting concrete member comprises concrete and optical fibers, the optical fibers are glass optical fibers, the outer surface of the glass optical fibers is provided with a zirconium oxide film, and the thickness of the zirconium oxide film is 30-50 μm.

[0030] Among numerous organic or inorganic films, the present application selects zirconium dioxide as the coating film material, because ZrO2 has excellent chemical stability and is not prone to react with glass, so that coating the surface of the glass fiber with a zirconium dioxide film will not affect the integrity of the optical fiber; the dense ZrO2 film has excellent stability and can exist stably in most environments and is not prone to corrosion or damage. In addition, partially stable ZrO2 also has good thermal shock resistance and very low thermal conductivity, 2.093 W / m·K, which is two orders of magnitude lower than that of general metals, which makes it stable when subjected to temperature changes and not prone to cracking or breaking.

[0031] Preferably, the aforementioned light-transmitting concrete member, wherein the numerical aperture of the glass optical fiber is 0.5-1.0.

[0032] The present application controls the numerical aperture of the glass optical fiber to be in the range of 0.5-1.0, and a larger numerical aperture can improve the light transmission capacity of the optical fiber and the light transmission rate, thereby improving the light transmission rate of the light-transmitting concrete.

[0033] The numerical aperture is not the only determining factor for controlling the performance of the glass fiber, and the material, diameter and coating of the optical fiber also affect the performance of the glass fiber; the present application controls the numerical aperture of the glass optical fiber, the zirconium oxide film and the thickness of the zirconium oxide film, thereby improving the light transmission capacity of the glass optical fiber and the light transmission performance of the light-transmitting concrete.

[0034] Preferably, the aforementioned light-transmitting concrete member, wherein the total volume of the several glass optical fibers accounts for 2-6% of the total volume of the light-transmitting concrete member.

[0035] The conventional process usually uses plastic optical fiber or quartz optical fiber, etc. The only method to improve the light transmittance of the light-transmitting concrete is to increase the amount of the optical fiber, which can improve the light transmittance of the light-transmitting concrete, but undoubtedly reduces the strength of the light-transmitting concrete. The total volume of the glass optical fiber in the light-transmitting concrete member of the present application is controlled to be 2-6% of the total volume of the light-transmitting concrete member, so that the light transmittance of the light-transmitting concrete can reach more than 30-40%. Because the glass optical fiber with a large numerical aperture and a zirconium oxide film is used, a large amount of optical fiber does not need to be added, so that the mechanical strength of the light-transmitting concrete is ensured.

[0036] Preferably, the aforementioned light-transmitting concrete member, wherein the glass optical fiber comprises a cladding and a core; the cladding comprises, in terms of weight percentage, SiO268-74%, B2O37-15% and Na2O 12-20%; the core comprises, in terms of weight percentage, B2O319-59%, La2O333-66% and BaO 0-47%.

[0037] The preparation of the glass fiber needs to meet the requirements of the matching of the thermal expansion coefficients of the core and the cladding, the matching of the viscosities, and the matching of the softening points. The preparation of the large numerical aperture needs to meet the requirement that the difference between the refractive indexes of the core and the cladding is as large as possible. The large numerical aperture glass fiber is prepared by adjusting the glass components. The high-refractive-index core glass can be obtained by adjusting the weight ratio of B2O3 to La2O3 to control the weight ratio of B2O3 / La2O3 to be 0.4-1.8, so that the core glass has a high refractive index and a high light transmittance. The low-refractive-index high-stability cladding glass can be obtained by adjusting the weight ratio of Na2O to B2O3 to be 0.9-2.5, so that the cladding glass has a low refractive index and a high stability.

[0038] The application can also adjust raw materials according to needs, for skin glass, the application introduces Al2O3 instead of SiO2 in a total amount of not more than 5%, introduces part of K2O instead of Na2O, uses double alkali effect, improves chemical stability of the glass, and improves crystallization performance; introduces Li2O instead of Na2O in a total amount of not more than 3%, improves chemical stability, meanwhile, suppresses B2O3 high-temperature volatilization amount, and improves stability of melting performance; introduces KHF2 in a total amount of not more than 3%, reduces refractive index of the glass; for core glass, the application introduces 0-20% Nb2O5 instead of La2O3, introduces 0-10% Ta2O3 instead of BaO, and introduces 0-4% ZrO2 instead of BaO, so as to improve refractive index of the system; the anti-crystallization performance of the core glass can be improved by introducing Y2O3, Yb2O3 and Gd2O3 instead of La2O3 in a total content of not more than 5%, introducing SiO2 instead of B2O3 (need to ensure that the mass ratio of B / Si is <2), introducing 0-8% Al2O3 instead of BaO, introducing 0-3% ZnO instead of BaO, and introducing 0-8% CaO instead of BaO.

[0039] The application further provides a preparation method of the light-transmitting concrete component.

[0040] 1) a zirconia film is arranged on the surface of the glass optical fiber, and the thickness of the zirconia film is 30-50 microns;

[0041] 2) the glass optical fiber is poured into the mold, vibrated and maintained, cut, polished and polished to obtain the light-transmitting concrete component.

[0042] The specific method for preparing the light-transmitting concrete component comprises the following steps:

[0043] 1) zirconia is coated on the surface of the glass optical fiber, and dried and sintered to obtain the glass optical fiber covered with the zirconia film, wherein the thickness of the zirconia film is 30-50 microns;

[0044] 2) the glass optical fiber obtained in step 1) is positioned and fixed by using a baffle with holes, and then the baffle and the glass optical fiber obtained in step 1) are placed in the mold as a whole, so that the baffle is attached to the inner wall of the mold;

[0045] 3) the glass optical fiber is poured with mortar, vibrated for 1-2 minutes, leveled, and maintained at room temperature for 1-2 days, and then the mold is removed, and then the glass optical fiber is cured for 28-35 days;

[0046] 4) the glass optical fiber is cut, polished and polished to obtain the light-transmitting concrete component.

[0047] The positioning of the optical fiber in the light-transmitting concrete component needs to use a baffle with holes, and a plurality of holes are arranged on the baffle with holes, which can be arranged in a matrix, or in a circular or other shape.

[0048] The present application can uniformly distribute the glass optical fibers in the light-transmitting concrete in a matrix form, with each glass optical fiber parallel to each other, and the two ends of the glass optical fiber located on different planes of the light-transmitting concrete component, wherein the optimal arrangement is as shown in Figure 1 The arrangement can make the light-transmitting rate of the light-transmitting concrete reach the highest.

[0049] During the polishing process, the part of the glass optical fiber protruding from the light-transmitting concrete component also needs to be polished and removed, so as to improve the light-transmitting performance of the light-transmitting concrete component.

[0050] Preferably, the preparation method of the light-transmitting concrete component, wherein the numerical aperture of the glass optical fiber is 0.5-1.0; and the total volume of the plurality of glass optical fibers accounts for 2-6% of the total volume of the light-transmitting concrete component.

[0051] Preferably, the preparation method of the light-transmitting concrete component, wherein the glass optical fiber comprises a cladding and a core; the cladding comprises, in terms of weight percentage, SiO268-74%, B2O37-15%, and Na2O 12-20%; and the core comprises, in terms of weight percentage, B2O319-59%, La2O333-66%, and BaO 0-47%.

[0052] Preferably, the preparation method of the light-transmitting concrete component, wherein the method for arranging the zirconia film comprises: applying a zirconia plating solution on the surface of the glass optical fiber, drying at 70-80°C for 10-30 min, then drying at 40-50°C for 15-45 min, and finally drying at 20-30°C for 20-60 min, and sintering to obtain the glass optical fiber with the zirconia film arranged thereon.

[0053] The present application uses the dip-coating method to uniformly coat the prepared zirconia sol on the surface of the optical fiber, then uses the hierarchical drying method (80°C-50°C-30°C) to fully discharge a large amount of solvent in the early stage of drying, and finally uses the low-temperature slow drying to reduce the film stress and avoid the aggregation at room temperature and the stress cracks at high temperature.

[0054] After the hierarchical drying, the glass optical fiber is first pre-sintered at a temperature of 300°C for 20 min, and then naturally cooled to room temperature, at which time the gelation process is basically completed. Then the pre-sintered glass optical fiber is sintered at 500°C for 0.5 h to prepare the glass optical fiber with the zirconia film coated thereon.

[0055] Preferably, the preparation method of the light-transmitting concrete component, wherein the method for preparing the zirconia plating solution comprises:

[0056] 1) mixing zirconium oxychloride and ethanol solution, stirring to obtain a precursor solution;

[0057] 2) mixing yttrium oxide and concentrated nitric acid, heating, adding the precursor solution, stirring until the mixture is transparent;

[0058] 3) adding concentrated ammonia water until the solution does not produce white flocculent precipitate, filtering, washing to obtain a gel;

[0059] 4) adding nitric acid to the gel, heating and stirring until it is completely converted into a transparent sol;

[0060] 5) adding polyvinyl alcohol aqueous solution to the transparent sol to prepare the zirconia coating solution.

[0061] The method for preparing zirconia sol comprises:

[0062] ① adding zirconium oxychloride crystalline powder into a hydrolysis solution mixed by ethanol and deionized water at a ratio of 1:1, strongly stirring on a magnetic stirrer to dissolve it to prepare a reaction precursor solution;

[0063] ② adding yttrium oxide into concentrated nitric acid to dissolve it by heating to prepare yttrium nitrate, adding the precursor solution, and strongly stirring to fully react, so that the solution is transparent, at this time, the pH value of the solution is less than 1, and the reaction equation is as follows:

[0064] ZrOCl2+(n+2)H2O→ZrO2·nH2O+2HCl+H2O (1)

[0065] Y2O3+6HNO3→2Y(NO3)3+3H2O (2)

[0066] Y(NO3)3+3H2O→Y(OH)3+3HNO3 (3)

[0067] ③ adding concentrated ammonia water as a catalyst for gel reaction dropwise into the solution, and the reaction proceeds in a positive direction, when the pH value of the solution is adjusted to 2.8, the hydrolysis point of Zr 4+ is reached, the solution begins to produce white flocculent precipitate, and the dropwise adding is continued until the pH value of the solution reaches 11, the flocculent precipitate stops producing, and the gel reaction is completed;

[0068] ④ filtering and washing the gel with deionized water to remove Cl - and other strong acid radical ions in the gel, because Cl - combined with H + to generate strong acid, which has strong corrosive effect on substances. The filtrate is detected by silver nitrate, and is filtered repeatedly until no Cl - is detected in the filtrate;

[0069] ⑤In the filtered paste gel, add a few drops of nitric acid as a gel breaker, the pH value drops to about 1, under strong stirring, the gel gradually begins to gel, and is converted into sol again, continue to heat and stir at 80 DEG C for 3-4 days until the white gel is completely converted into transparent sol;

[0070] ⑥In the sol, add different doses of polyvinyl alcohol aqueous solution to prepare a coating solution with a mass percentage of 5% and 15% for coating.

[0071] The above method can be prepared in an atmospheric environment, and the composition is easier to control in a low-temperature chemical process, so that the prepared zirconium dioxide coating solution has more excellent performance; in addition, the prepared zirconium dioxide coating solution is easier to coat in a large area, so that the processing efficiency of the glass fiber is improved.

[0072] The application also provides a light-transmitting wall, which comprises a light-transmitting concrete component.

[0073] The application will be further described below in conjunction with specific examples, but it should not be understood as limiting the scope of protection of the application, and some non-essential improvements and adjustments made by the person skilled in the art to the application according to the above content of the application still belong to the protection scope of the application.

[0074] Unless otherwise specified, the materials, reagents and the like involved below are all commercially available goods well known by those skilled in the art; unless otherwise specified, the methods are all the methods well known in the art. Unless otherwise defined, the technical terms or scientific terms used should be the usual meanings understood by the person skilled in the art in the field to which the application belongs.

[0075] Example 1

[0076] Firstly, the glass optical fiber is prepared according to the core-sheath glass component of Table 1 Example 1.

[0077] The zirconium oxide coating solution is prepared according to the following method:

[0078] 1) Zirconium oxychloride and ethanol solution are mixed and stirred to obtain a precursor solution;

[0079] 2) Yttrium oxide and concentrated nitric acid are mixed and heated, and the precursor solution is added and stirred until the mixed solution is transparent;

[0080] 3) Concentrated ammonia is added until the solution does not produce white flocculent precipitate, and the gel is filtered and washed;

[0081] 4) Nitric acid is added to the gel and heated and stirred until it is completely converted into transparent sol;

[0082] 5) Polyvinyl alcohol aqueous solution is added to the transparent sol to prepare the zirconium oxide coating solution.

[0083] Preparation of light-transmitting concrete:

[0084] 1) The zirconium oxide plating solution is coated on the surface of the glass optical fiber, dried at 70°C for 10 min, then dried at 40°C for 15 min, and finally dried at 20°C for 20 min, and sintered to obtain a glass optical fiber provided with a zirconium oxide film; the thickness of the zirconium oxide film is 30 μm; the numerical aperture of the glass optical fiber is 0.5;

[0085] 2) The glass optical fiber is poured into the mold with mortar, the total volume of a plurality of the glass optical fibers accounts for 2% of the total volume of the light-transmitting concrete component, vibrated and cured, cut, polished, and finally a light-transmitting concrete test block with a light transmission rate of 30% is obtained.

[0086] Example 2

[0087] First, a glass optical fiber is prepared according to the core-sheath glass component of Table 1, Example 2.

[0088] The zirconium oxide plating solution is prepared according to the following method.

[0089] 1) Zirconium oxychloride and an ethanol solution are mixed and stirred to obtain a precursor solution;

[0090] 2) Yttrium oxide and concentrated nitric acid are mixed and heated, and the precursor solution is added and stirred until the mixed solution is transparent;

[0091] 3) Concentrated ammonia water is added until no white flocculent precipitate is generated in the solution, and the solution is filtered and washed to obtain a gel;

[0092] 4) Nitric acid is added to the gel and heated and stirred until the gel is completely converted into a transparent sol;

[0093] 5) The transparent sol is added with a polyvinyl alcohol aqueous solution to prepare the zirconium oxide plating solution.

[0094] Preparation of light-transmitting concrete:

[0095] 1) The zirconium oxide plating solution is coated on the surface of the glass optical fiber, dried at 75°C for 20 min, then dried at 45°C for 25 min, and finally dried at 25°C for 40 min, and sintered to obtain a glass optical fiber provided with a zirconium oxide film; the thickness of the zirconium oxide film is 40 μm; the numerical aperture of the glass optical fiber is 0.7;

[0096] 2) The glass optical fiber is poured into the mold with mortar, the total volume of a plurality of the glass optical fibers accounts for 4% of the total volume of the light-transmitting concrete component, vibrated and cured, cut, polished, and finally a light-transmitting concrete test block with a light transmission rate of 35% is obtained.

[0097] Example 3

[0098] First, a glass optical fiber was prepared according to the core-sheath glass composition of Example 3 in Table 1.

[0099] A zirconium oxide coating solution was prepared according to the following method.

[0100] 1) A precursor solution was prepared by mixing a zirconium oxychloride solution and ethanol and stirring;

[0101] 2) Yttrium oxide and concentrated nitric acid were mixed and heated, and the precursor solution was added and stirred until the mixture was transparent;

[0102] 3) Concentrated ammonia was added until no white flocculent precipitate was produced in the solution, and the solution was filtered and washed to obtain a gel;

[0103] 4) Nitric acid was added to the gel and heated and stirred until the gel was completely converted into a transparent sol;

[0104] 5) The transparent sol was added to a polyvinyl alcohol aqueous solution to prepare the zirconium oxide coating solution.

[0105] Preparation of light-transmitting concrete:

[0106] 1) The zirconium oxide coating solution was coated on the surface of the glass optical fiber, dried at 80°C for 30 min, then dried at 50°C for 45 min, and finally dried at 30°C for 60 min, and sintered to obtain a glass optical fiber provided with a zirconium oxide film; the thickness of the zirconium oxide film was 50 μm; the numerical aperture of the glass optical fiber was 1;

[0107] 2) The glass optical fiber was placed in a mold, and a mortar was poured into the mold; the total volume of the glass optical fiber accounted for 2% of the total volume of the light-transmitting concrete member; the mold was vibrated and cured, and the glass optical fiber was cut, polished, and polished to obtain a light-transmitting concrete test block with a light transmittance of 40%.

[0108] In the above examples, the description of each example focuses on different aspects, and the parts not described in detail in a certain example can be referred to the relevant description of other examples.

[0109] Table 1

[0110]

[0111]

[0112] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application. Any person skilled in the art, without departing from the technical solution of the present application, can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, as long as it does not deviate from the technical solution of the present application, still belongs to the scope of the technical solution of the present application.

Claims

1. A light-transmitting concrete member comprising concrete and optical fibers, characterized by, The optical fiber is a glass optical fiber; The glass optical fiber comprises a sheath and a core; The sheath comprises, in percentage by weight, SiO268-74%, B2O37-15% and Na2O 12-20%; the core comprises, in percentage by weight, B2O319-59%, La2O333-66% and BaO 0-47%; the glass optical fiber is provided with a zirconium oxide film on the outer surface; the thickness of the zirconium oxide film is 30-50 μm; the zirconium oxide film is provided by coating a zirconium oxide film solution on the surface of the glass optical fiber, drying at 70-80 °C for 10-30 min, then drying at 40-50 °C for 15-45 min, and finally drying at 20-30 °C for 20-60 min, and sintering to obtain the glass optical fiber provided with the zirconium oxide film.

2. The light-transmitting concrete member according to claim 1, characterized in that, The numerical aperture of the glass optical fiber is 0.5-1.

0.

3. The light-transmitting concrete member of claim 1, wherein The total volume of the several glass optical fibers accounts for 2-6% of the total volume of the light-transmitting concrete component.

4. A method of producing a light-transmitting concrete member according to any one of claims 1 to 3, characterized by, It comprises the following steps: 1) providing a zirconium oxide film on the surface of the glass optical fiber; the thickness of the zirconium oxide film is 30-50 μm; 2) placing the glass optical fiber in a mold, pouring the mortar, vibrating and curing, cutting, polishing and polishing to obtain the light-transmitting concrete component.

5. The method of making a light-transmitting concrete member according to claim 4, wherein, The preparation method of the zirconium oxide film solution comprises: 1) mixing zirconium oxychloride and an ethanol solution, stirring to obtain a precursor solution; 2) mixing yttrium oxide and concentrated nitric acid, heating, adding the precursor solution, and stirring until the mixed solution is transparent; 3) adding concentrated ammonia until the solution does not produce white flocculent precipitate, filtering, washing to obtain a gel; 4) adding nitric acid to the gel, heating and stirring until all are converted into a transparent sol; 5) adding a polyvinyl alcohol aqueous solution to the transparent sol to obtain the zirconium oxide film solution.

6. The method of making a light-transmitting concrete member according to claim 4, wherein The numerical aperture of the glass optical fiber is 0.5-1.0; the total volume of the several glass optical fibers accounts for 2-6% of the total volume of the light-transmitting concrete component.

7. A light-transmitting wall, characterized in that The light-transmitting wall comprises the light-transmitting concrete component of any one of claims 1 to 3.

Images