Method for preparing art concrete by taking broken glass as main raw material

Abstract

The invention relates to a method for preparing artistic concrete by taking broken glass as a main raw material, which comprises the following steps of: a) treating the broken glass: cleaning recycled waste glass, and removing non-glass impurities by adopting a mechanical screening and water washing combined method; b) burdening and mixing: mixing the crushed glass slag with cement and fine sand according to a mass ratio; c) mixing and forming: putting all the materials into a concrete mixer with a speed-adjustable function, and fully stirring until the materials are uniform; then pouring the mixed concrete slurry into a pre-designed mold; and d) curing and demolding: primarily curing the poured concrete in a mold. The recycled waste glass is reasonably treated and proportioned, so that the physical and chemical properties of the concrete are enhanced, and a concrete product is more durable and stable when being used outdoors.

Description

Technical Field

[0001] The present application relates to concrete preparation, and in particular, to a method for preparing artistic concrete using glass slag as a main raw material. Background Art

[0002] With the acceleration of urbanization and the improvement of consumption levels, the construction industry is facing the dual pressures of resource consumption and environmental pollution while promoting economic development. The production process of traditional building materials such as cement and sandstone not only consumes a large amount of natural resources, but also has a significant impact on the ecological environment. In addition, with the enhancement of people's environmental awareness, the search for renewable and sustainable building materials has become an important trend in the development of the construction industry. The resource utilization of waste has gradually become an important direction for the research and development of modern building materials.

[0003] Waste glass, as a ubiquitous solid waste, has attracted widespread attention in recent years. According to statistics, the amount of waste glass generated worldwide each year reaches tens of millions of tons, of which a considerable portion of glass bottles, containers and other glass products have not been effectively recycled, resulting in resource waste and environmental pollution. The main components of waste glass are silicon dioxide, sodium oxide and calcium oxide, which have good chemical stability and physical properties in building materials and therefore have potential application value in concrete production. By reprocessing waste glass into glass slag, it can not only reduce the demand for natural resources, but also reduce the burden of landfill on the environment.

[0004] In the prior art, many studies have been devoted to exploring the application of waste glass in concrete. For example, studies have shown that adding a certain proportion of glass slag to concrete can effectively improve the strength and durability of concrete. At the same time, the gloss and color of glass significantly improve the aesthetics of concrete products. However, the use of waste glass also has certain challenges. For example, untreated waste glass may contain impurities such as paper, plastic, and metal, which can have a negative impact on the performance of concrete. In addition, how to control the particle size and distribution of glass slag to ensure the uniformity and strength of concrete is also a problem that needs to be solved.

[0005] In the formula design of concrete, the proportion of ingredients plays a decisive role in the performance of concrete. In the existing technology, traditional concrete is usually composed of components such as cement, fine sand and crushed stone. When glass slag is introduced as the main raw material, how to optimize its proportion so that the ratio of glass slag to cement and sand and gravel is reasonable, thereby improving the comprehensive performance of concrete, has become the focus of research.

[0006] At present, the research on artistic concrete mainly focuses on its color and decorativeness. The characteristic of artistic concrete is that it can achieve diverse visual effects through unique proportions and processing technology. However, since most existing technologies only focus on aesthetics and ignore practicality, many artistic concrete products are prone to fading or aging in outdoor environments. Therefore, developing a new preparation method for artistic concrete can not only solve the above problems, but also ensure the durability and long-term stability of concrete products while maintaining aesthetics.

[0007] Based on the above background technology, there is an urgent need for a new method for preparing artistic concrete, which can improve the physical and chemical properties of concrete, reduce the environmental burden, and achieve sustainable utilization of resources through reasonable treatment, proportioning and process optimization of waste glass. Summary of the invention

[0008] The present application solves the technical problems raised in the background technology and provides a method for preparing artistic concrete with glass slag as the main raw material. By rationally processing and proportioning recycled waste glass, the physical and chemical properties of concrete are enhanced, making concrete products more durable and stable when used outdoors.

[0009] In order to solve the above technical problems, the technical solution provided in this application is: a method for preparing artistic concrete using glass slag as the main raw material, the method comprising the following steps:

[0010] a) Treatment of glass slag: The recycled waste glass is cleaned by combining mechanical screening and water washing to remove non-glass impurities, including but not limited to paper, plastic and metal;

[0011] The cleaned glass slag is crushed, and the particle size of the fragments is controlled between 1-10mm during the crushing process;

[0012] b) Batching and mixing: Mix the crushed glass slag with cement and fine sand according to the mass ratio, wherein the glass slag accounts for 50%-70% of the total mass, cement accounts for 20%-40%, and fine sand accounts for 10%-20%; add necessary pigments and functional additives, including anti-cracking fibers, waterproofing agents or anti-ultraviolet agents, to enhance the physical and chemical properties of concrete;

[0013] c) Mixing and molding: Put all materials into a concrete mixer with adjustable speed function and mix them thoroughly until they are uniform. The mixing time is adjusted according to the type of materials and the model of the mixer, and the mixing time is not less than 3 minutes; then pour the mixed concrete slurry into the pre-designed mold, and use a vibration table to compact the poured concrete. The vibration time and intensity are adjusted according to the viscosity of the concrete and the size of the mold to remove bubbles and ensure the uniformity of the shape;

[0014] d) Curing and demoulding: The poured concrete is initially cured in the mold. During the curing process, the ambient temperature is controlled at 20-25°C and the humidity is controlled at 50-70%;

[0015] After the initial curing period of not less than 24 hours, demoulding operation is carried out, and then the concrete products are transferred to the standard curing room for secondary curing to achieve the required strength and durability. The secondary curing time is adjusted according to the thickness of the concrete and environmental conditions, and the secondary curing time is not less than 28 days.

[0016] Furthermore, in step a), the method for cleaning the recycled waste glass includes using ultrasound or high-pressure water flow for cleaning, and further includes using ultrasound of a specific frequency to enhance the stripping effect of pollutants, or using pulsed high-pressure water flow for cleaning, through intermittent high-pressure water flow impact, to improve the cleaning depth and efficiency, which is particularly suitable for glass debris with multiple layers or complex surfaces.

[0017] Furthermore, in step a), the crushing step further includes an intelligent control system that automatically adjusts the particle size of the crushed slag according to preset structural and aesthetic requirements to optimize the performance and appearance of the concrete product.

[0018] Furthermore, in step b), the pigment is an environmentally friendly inorganic pigment that has been subjected to nano-scale surface modification to improve its ultraviolet stability and weather resistance, so that the color of the concrete product is more durable and stable when used outdoors.

[0019] Furthermore, in step b), the functional additive is selected from a group consisting of plasticizers, retarders, and early strength agents, and further includes at least one anti-microcracking additive, which can significantly improve the crack resistance and durability of concrete products.

[0020] Furthermore, in step b), the cement is sulphoaluminate cement optimized by doping with trace elements, which has higher resistance to sulfate corrosion and early strength, and is suitable for the production of concrete products in extreme environments.

[0021] Furthermore, in step c), the mixing step includes using a mixer with automatic metering and timed shutdown functions, and further has environmental sensing regulation to automatically adjust the stirring speed and time to cope with changes in different environmental temperatures and humidity.

[0022] Furthermore, in step c), the mold is a mold with adjustable size and shape, and is equipped with an automatic recognition and shape adjustment system, which can automatically change the shape and size of the mold according to production requirements, thereby improving production efficiency and flexibility.

[0023] Furthermore, in step d), the curing step includes being carried out in an environment where the temperature is controlled at 22-25° C. and the humidity is controlled at 50% to 60%, and environmental vibration control is added to reduce microcracks caused by environmental vibration during the curing process.

[0024] Furthermore, in step d), the concrete product is used for building decoration or road paving, and through specific surface treatment or addition of specific materials, and further has self-cleaning or reflective properties, the concrete product has higher performance in both practicality and aesthetics.

[0025] This application has the following advantages: 1. Resource recycling and environmental friendliness

[0026] Recycling of waste glass: This method uses recycled waste glass as the main raw material, significantly reducing the demand for natural resources, conforming to the concept of sustainable development, and helping to reduce waste landfill and environmental pollution.

[0027] Innovation in the cleaning process: Using ultrasonic waves and high-pressure water flow for cleaning not only improves cleaning efficiency, but also thoroughly removes pollutants to ensure the quality of concrete products.

[0028] 2. Optimization of material properties

[0029] Particle size control: Through intelligent control systems, the particle size of glass slag can be precisely adjusted to optimize the performance and appearance of concrete, so that the final product is improved in both strength and aesthetics.

[0030] High-performance additives: The introduction of anti-cracking fibers, environmentally friendly inorganic pigments and a variety of functional additives (such as plasticizers, retarders, and early strength agents) greatly improves the physical and chemical properties of concrete, such as crack resistance, weather resistance and durability.

[0031] 3. Intelligent process flow

[0032] Automated mixing and metering: Using a mixer with automatic metering and timed shutdown functions not only improves production efficiency, but also can automatically adjust the mixing speed and time according to environmental changes to ensure the consistency of concrete quality.

[0033] 4. Improvement of maintenance process

[0034] Environmental control: Temperature and humidity control during the curing process, as well as the addition of environmental vibration control, can reduce microcracks caused by environmental factors and improve the ultimate strength and durability of concrete.

[0035] 5. Product diversity and practicality

[0036] Self-cleaning and reflective properties: Through specific surface treatment, concrete products are not only beautiful, but also have self-cleaning and reflective properties, which improves their functionality and aesthetics in practical applications such as building decoration and road paving.

[0037] Strong adaptability: The improved sulphoaluminate cement exhibits higher resistance to sulfate attack in extreme environments, ensuring the reliability of the product and making it suitable for a variety of construction environments. DETAILED DESCRIPTION

[0038] The present application is further described in detail below in conjunction with embodiments.

[0039] In the specific implementation of the present application, a method for preparing artistic concrete using glass slag as the main raw material includes the following detailed steps, which are intended to make full use of waste glass materials and produce decorative and practical artistic concrete products through scientific proportions and precise processes.

[0040] Step a) Treatment of glass slag:

[0041] The main purpose of this step is to prepare the appropriate raw material of glass slag. First, the collected waste glass is thoroughly cleaned to remove all attached contaminants such as dust, paper, tape, etc. to ensure the purity of the glass. Then, all non-glass impurities such as metal fragments, plastic, ceramics, etc. are removed through special sorting equipment. The cleaned and sorted waste glass is then sent to the crusher and crushed to a particle size of 1-10 mm. This particle size range is selected to ensure the best performance and aesthetics of the glass slag in concrete, and also facilitate the subsequent mixing and molding process.

[0042] Step b) prepare materials according to mass ratio:

[0043] In this step, the crushed glass slag is mixed with cement, fine sand and water according to a predetermined mass ratio. The specific ratio is: glass slag accounts for 30-70% of the total mass, cement accounts for about 20-50%, and fine sand accounts for about 10-30%. In addition, according to the purpose of the final product and the needs of the customer, pigments and functional additives such as reinforcing agents, water reducing agents and anti-cracking agents are added in appropriate amounts. These additives not only enhance the mechanical properties and durability of concrete, but also improve its appearance and color, making the product more artistic.

[0044] Step c) Mixing and forming:

[0045] All prepared materials are placed in a concrete mixer and mixed thoroughly to ensure that all components are evenly distributed. After mixing evenly, the concrete is poured into the pre-prepared mold. In order to eliminate air bubbles and ensure the compactness of the concrete in the mold, a vibrating table is used to vibrate the concrete poured into the mold. During the vibration process, the vibration frequency and time of the vibrating table are strictly controlled to prevent the material from delaminating or damaging the glass slag.

[0046] Step d) Curing and demoulding:

[0047] In the mold, concrete needs to be properly cured, usually in a humid environment for a certain period of time, so that the cement can be fully hydrated, so as to exert its binding force and enhance the structural strength of the concrete. The curing period is usually 28 days, and the temperature and humidity are strictly controlled to optimize the hardening process. After the curing is completed, the demoulding is carried out. At this time, the concrete has initial mechanical strength, but it needs to continue to be cured in order to achieve the final strength required by the design.

[0048] Through the above steps, not only waste glass is effectively recycled and environmental pollution is reduced, but also high-quality concrete products with artistic effects are produced, which are suitable for a variety of architectural and decorative occasions. This method is simple, economical, easy to mass produce, and has good social and economic benefits.

[0049] Through the precise control of cleaning, crushing, proportioning, mixing, curing and molding steps, the recycling efficiency of waste glass is improved, and the concrete products are given higher decorative and structural properties. The following are the detailed technical implementation details:

[0050] The step of cleaning waste glass is crucial. Using ultrasonic or high-pressure water jets for cleaning can effectively remove dirt, oil stains, label residues and other impurities on glass fragments. Ultrasonic cleaning generates tiny bubbles and strong vibrations by emitting high-frequency sound waves. These bubbles burst quickly when they hit the glass surface, thereby generating a strong cleaning force to deeply clean the dirt on the surface and cracks of glass fragments. High-pressure water jet cleaning uses the impact force of high-speed jets of water to remove stubborn stains and impurities. This method is fast and effective and suitable for large-scale cleaning operations. Both cleaning methods are environmentally friendly and efficient, and can provide pure glass debris for subsequent crushing and mixing steps.

[0051] Adding pigments to concrete mix is ​​an important means to enhance its artistic effect. Environmentally friendly inorganic pigments that have undergone nano-level surface modification are selected. These pigments do not contain harmful substances, have stable colors, are light-resistant and water-resistant, and are not easy to fade. They are suitable for architectural decoration that is exposed to outdoor environments for a long time. The use of environmentally friendly inorganic pigments is not only beautiful, but also meets the requirements of sustainable development and environmental protection, increasing the market competitiveness of products.

[0052] In order to improve the performance and processing characteristics of concrete, specific functional additives are added. These additives include plasticizers, retarders and early strength agents, which can significantly improve the fluidity of concrete, prolong the setting time or increase the initial strength. Plasticizers can increase the plasticity and fluidity of concrete, making it easier to form and compact; retarders can prolong the setting time of cement, making it easier to construct in large projects or high temperature environments; early strength agents can speed up the initial hardening of concrete, making it suitable for occasions that require rapid demoulding or loading. The rational use of these additives makes the performance of concrete even better and more adaptable to different usage environments and construction requirements.

[0053] The crushing step is not only about converting waste glass into crushed slag, but also about adjusting the particle size of the crushed slag to meet specific aesthetic and structural requirements. By precisely controlling the crusher parameters (such as crushing speed, time, pressure, etc.), glass crushed slag of different particle sizes can be produced to achieve the best visual and performance effects of concrete. Smaller particle size glass crushed slag can increase the density and surface smoothness of concrete, while larger particle size glass crushed slag can be used to increase the decorative effect and texture of concrete.

[0054] Curing of concrete is a key step to ensure that it achieves the expected performance. The curing step is carried out in an environment with a temperature controlled at 22-25°C and a humidity controlled at 50% to 60%. Such conditions are conducive to the full hydration reaction of cement, avoiding abnormal hydration rate caused by excessively high or low temperatures, and ensuring the strength and durability of concrete. By precisely controlling the temperature and humidity of the curing environment, shrinkage cracks or other quality problems can be effectively prevented during the curing process.

[0055] In the mixing step, a mixer with automatic metering and timed stop functions is used to ensure the uniformity and quality of the mixed materials. The automatic metering function can accurately control the proportion of various raw materials added, avoid human errors, and ensure that the concrete ratio is accurate. The timed stop function can automatically stop mixing after the preset mixing time is reached, ensuring that the concrete is mixed evenly without over-mixing, and avoiding the performance of the concrete being affected by too long mixing time.

[0056] The mold used can be adjusted in size and shape, which makes it possible to produce concrete products of different specifications and shapes. The flexibility of this mold greatly enhances the design freedom and application range of the product, and can meet the needs of various architectural decorations and functional components. By simply adjusting the configuration of the mold, various styles of bricks, plates, decorative walls, etc. can be produced, greatly enriching the variety and aesthetics of building materials.

[0057] The cement used is sulphoaluminate cement, which is more resistant to sulfate erosion and suitable for use in harsh environments. The use of sulphoaluminate cement improves the durability and stability of concrete products, especially in highly corrosive environments such as oceans and industrial emissions. In addition, sulphoaluminate cement can also increase the initial strength of concrete, shorten construction period and improve construction efficiency.

[0058] The concrete products produced are mainly used for building decoration or road paving. These products are further self-cleaning or reflective through specific surface treatment or adding specific materials, making the concrete products more practical and aesthetically pleasing.

[0059] Although the present invention has been shown and described primarily with reference to certain embodiments, it will be appreciated by those skilled in the art that numerous changes may be made thereto in terms of construction scheme and details, etc., without departing from the scope of protection defined by the claims. Thus, the scope of protection of the present invention is determined by the claims and includes all changes that fall within the meaning or equivalent scope of the claims.

Claims

1. A method for preparing artistic concrete using glass slag as the main raw material, characterized in that: The method comprises the following steps: a) Treatment of glass slag: The recycled waste glass is cleaned by combining mechanical screening and water washing to remove non-glass impurities, including but not limited to paper, plastic and metal; The cleaned glass slag is crushed, and the particle size of the fragments is controlled between 1-10mm during the crushing process; b) Batching and mixing: Mix the crushed glass slag with cement and fine sand according to the mass ratio, wherein the glass slag accounts for 50%-70% of the total mass, cement accounts for 20%-40%, and fine sand accounts for 10%-20%; add necessary pigments and functional additives, including anti-cracking fibers, waterproofing agents or anti-ultraviolet agents; c) Mixing and molding: Put all materials into a concrete mixer with adjustable speed function and mix them thoroughly until they are uniform. The mixing time is adjusted according to the type of materials and the model of the mixer, and the mixing time is not less than 3 minutes; then pour the mixed concrete slurry into the pre-designed mold, and use a vibration table to vibrate the poured concrete. The vibration time and intensity are adjusted according to the viscosity of the concrete and the size of the mold; d) Curing and demoulding: The poured concrete is initially cured in the mold. During the curing process, the ambient temperature is controlled at 20-25°C and the humidity is controlled at 50-70%; After the initial curing period of not less than 24 hours, demoulding operation is carried out, and then the concrete products are transferred to the standard curing room for secondary curing to achieve the required strength and durability. The secondary curing time is adjusted according to the thickness of the concrete and environmental conditions, and the secondary curing time is not less than 28 days.

2. The method for preparing artistic concrete using glass slag as main raw material according to claim 1, characterized in that: In step a), the recycled waste glass is cleaned by using ultrasonic waves or high-pressure water flow, and further includes using ultrasonic waves of a specific frequency to enhance the stripping effect of pollutants, or using pulsed high-pressure water flow for cleaning.

3. The method for preparing artistic concrete using glass slag as main raw material according to claim 1, characterized in that: In step a), the crushing step further includes an intelligent control system that automatically adjusts the particle size of the crushed slag according to preset structural and aesthetic requirements.

4. The method for preparing artistic concrete using glass slag as main raw material according to claim 1, characterized in that: In step b), the pigment is an environmentally friendly inorganic pigment that has been subjected to nano-scale surface modification to improve its ultraviolet stability and weather resistance.

5. The method for preparing artistic concrete using glass slag as main raw material according to claim 1, characterized in that: In step b), the functional additive is selected from a group consisting of a plasticizer, a retarder, and an early strength agent, and further includes at least one additive with anti-microcracking performance.

6. The method for preparing artistic concrete using glass slag as main raw material according to claim 1, characterized in that: In step b), the cement is sulphoaluminate cement optimized by doping with trace elements.

7. The method for preparing artistic concrete using glass slag as main raw material according to claim 1, characterized in that: In step c), the mixing step includes using a mixer with automatic metering and timed shutdown functions, and further having environmental sensing regulation to automatically adjust the stirring speed and time.

8. The method for preparing artistic concrete using glass slag as main raw material according to claim 1, characterized in that: In step c), the mold is a mold with adjustable size and shape, and is equipped with an automatic recognition and shape adjustment system, which can automatically change the shape and size of the mold according to production requirements.

9. The method for preparing artistic concrete using glass slag as main raw material according to claim 1, characterized in that: In step d), the curing step is carried out in an environment where the temperature is controlled at 22-25° C. and the humidity is controlled at 50% to 60%, and environmental vibration control is added.

10. The method for preparing artistic concrete using glass slag as main raw material according to claim 1, characterized in that: In step d), the concrete product is used for building decoration or road paving, and is further provided with self-cleaning or reflective properties through specific surface treatment or addition of specific materials.