A PROCESS OF PRODUCING RCA AND BIOCHAR-INFUSED CONCRETE BRICKS FOR IMPROVED CARBON SEQUESTRATION

Abstract

Present invention discloses a sustainable process for producing concrete bricks infused with recycled concrete aggregates (RCA) and biochar to enhance carbon sequestration and reduce environmental impact. By replacing a portion of virgin aggregates with RCA and integrating biochar, the process creates a durable, thermally insulating construction material. The biochar component captures carbon, while RCA supports a circular economy. This eco-friendly concrete solution offers improved energy efficiency, longevity, and adaptability, aligning with global sustainability objectives for reduced carbon emissions and resource conservation.

Specification

Description:FIELD OF THE INVENTION:
The field of the invention relates to construction materials, specifically a method for producing concrete bricks infused with recycled concrete aggregates (RCA) and biochar. This process enhances carbon sequestration within construction applications, contributing to sustainable building practices by utilizing eco-friendly materials and reducing carbon emissions.

BACKGROUD OF THE INVENTION:
Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.
In recent years, the construction industry has faced increasing pressure to reduce its environmental impact, primarily due to its significant contributions to carbon emissions. Traditional concrete production relies heavily on virgin materials such as limestone and aggregates, which, when combined with the energy-intensive cement manufacturing process, results in a large carbon footprint. Given that the construction industry is among the highest producers of CO2 emissions globally, finding sustainable alternatives to traditional concrete components has become an urgent priority. Research into eco-friendly materials and recycling techniques has gained momentum, with particular focus on reducing reliance on virgin resources and enhancing carbon sequestration within construction materials. One of the promising approaches is the incorporation of biochar and recycled concrete aggregates (RCA) into concrete mixtures. Both materials offer potential environmental benefits that can reduce the ecological footprint of concrete production.
Biochar, a form of carbon-rich material produced through the pyrolysis of organic waste, has emerged as a significant innovation within the environmental and materials science fields. When organic material such as agricultural or forestry waste undergoes pyrolysis, it is converted into biochar, which has stable carbon content and can remain in the environment for centuries. Biochar has been recognized for its potential to sequester carbon effectively, making it a powerful tool for carbon capture and storage (CCS). When applied to soil, biochar enhances nutrient retention and water absorption, improving agricultural productivity while locking carbon within the soil. Similarly, when used in construction materials, biochar provides a viable method for carbon sequestration within the built environment. Its unique structure and chemical properties also contribute to enhanced mechanical strength, reduced water absorption, and improved thermal insulation in concrete applications. The inclusion of biochar in concrete has shown promise in offsetting carbon emissions while also potentially enhancing the durability and functionality of the material.
In addition to biochar, recycled concrete aggregates (RCA) present a compelling case for sustainable concrete production. RCA is derived from demolished concrete structures, which are otherwise disposed of in landfills. Recycling concrete waste not only reduces the environmental impact associated with new construction but also minimizes landfill waste and conserves natural aggregates. The use of RCA as a substitute for virgin aggregates in concrete mixtures has been studied extensively. Research indicates that RCA can effectively replace a portion of natural aggregates without significantly compromising the structural integrity of concrete. By reusing waste material, RCA-infused concrete can reduce the demand for new raw materials, decreasing resource extraction and environmental degradation. RCA also contributes to a circular economy model, wherein waste materials from previous construction are reintegrated into new projects, promoting a more sustainable lifecycle for building materials. Additionally, RCA has been observed to improve the thermal properties of concrete, thereby enhancing its energy efficiency potential in building applications.
Combining biochar and RCA in concrete production represents an innovative approach to addressing multiple environmental challenges simultaneously. Integrating these two materials within concrete offers a synergistic effect; biochar enhances the carbon sequestration potential, while RCA reduces the need for virgin aggregates, supporting sustainable resource management. Biochar's porous structure allows it to interact effectively with RCA, creating a stable composite that retains strength and durability. Furthermore, the unique properties of biochar, such as its lightweight and insulation capabilities, may offset any potential weight gain from RCA, leading to a balanced material suitable for a wide range of construction applications. The resulting concrete brick not only contributes to reducing carbon emissions but also has the potential to enhance the overall sustainability of the construction sector by incorporating waste-derived materials into a valuable end product.
Another key benefit of this approach is the impact on urban construction waste management. As cities expand and infrastructure ages, the amount of construction and demolition waste continues to grow. Managing this waste sustainably has become a priority for urban planners and environmental agencies. RCA provides a solution by repurposing construction waste into new building materials, helping to close the loop in construction waste recycling. This is particularly beneficial in urban areas, where space constraints limit landfill expansion and the environmental impact of construction activities is more concentrated. By reducing waste and reintroducing it into new construction, RCA-infused concrete mitigates the environmental burden of urban growth while also promoting resource efficiency. The dual use of biochar and RCA not only addresses the environmental aspects but also aligns with the economic goals of reducing construction costs by using locally sourced and recycled materials.
Studies indicate that the addition of biochar to concrete can improve its thermal insulation properties, thereby contributing to energy efficiency in buildings. Buildings with enhanced insulation reduce the need for heating and cooling, which can lead to significant energy savings over the life of the structure. These energy savings translate into lower operational carbon emissions, complementing the carbon sequestration achieved during the concrete production process. Furthermore, biochar's ability to absorb and retain water can reduce the susceptibility of concrete to cracking due to moisture-related expansion and contraction, enhancing the durability of concrete structures. When RCA is added to the mix, the combination can lead to improved hydration control and increased density, potentially extending the lifespan of buildings constructed with this composite material.
The production process for biochar and RCA-infused concrete bricks involves several critical steps to ensure material quality and performance. Biochar must be properly processed and sized to integrate seamlessly within the concrete matrix without compromising its stability. The pyrolysis process must be carefully controlled to produce biochar with optimal carbon content and structural properties. Similarly, RCA must be properly cleaned, crushed, and graded to remove impurities and ensure compatibility with the concrete mixture. The process of combining biochar and RCA with traditional cementitious materials requires precise formulation and mixing techniques to achieve a balanced and homogeneous product. Once formed, the concrete bricks are cured under controlled conditions to ensure the material attains the desired mechanical properties and longevity.
One of the main challenges in the development of biochar and RCA-infused concrete bricks lies in balancing the properties of the materials to achieve both strength and sustainability. Concrete is traditionally valued for its compressive strength, and the addition of biochar and RCA can alter the material's structural properties. Research and testing are essential to determine the optimal proportions of biochar, RCA, and cementitious materials to ensure that the resulting concrete maintains its durability and load-bearing capacity. Additional testing is also required to assess the long-term performance of biochar and RCA-infused concrete under varying environmental conditions, such as exposure to moisture, temperature fluctuations, and chemical exposure.
The use of biochar and RCA in concrete aligns with global sustainability goals, such as those outlined by the United Nations in their Sustainable Development Goals (SDGs). Specifically, this invention supports SDG 11 (Sustainable Cities and Communities) by promoting the use of recycled materials in urban development and SDG 13 (Climate Action) by integrating carbon capture technology into building materials. As governments and organizations increasingly prioritize carbon reduction and resource efficiency, innovations such as biochar and RCA-infused concrete bricks can play a significant role in meeting these targets. By enhancing the environmental performance of concrete, this invention offers a practical solution for the construction industry to reduce its carbon footprint and move toward a more sustainable future.
In conclusion, the invention of RCA and biochar-infused concrete bricks represents a forward-thinking approach to sustainable construction. By integrating carbon-sequestering biochar and recycled concrete aggregates, this material offers a range of environmental benefits, including reduced reliance on virgin resources, enhanced waste management, and long-term carbon capture. While challenges remain in terms of optimizing the material's structural properties, ongoing research and development can address these issues, paving the way for broader adoption in the construction industry. This invention not only aligns with current sustainability objectives but also has the potential to transform the built environment into a more environmentally responsible sector. As the construction industry continues to evolve, innovations like this will be instrumental in achieving a balance between development and environmental stewardship, contributing to a healthier and more sustainable planet.

OBJECTS OF THE INVENTION:
The prime object of the invention is to provide a process for producing concrete bricks infused with recycled concrete aggregates (RCA) and biochar, aimed at improving carbon sequestration and reducing the overall carbon footprint of construction materials. This process not only utilizes waste-derived components but also enhances the sustainability of building practices by incorporating carbon-sequestering biochar, thereby contributing to carbon capture efforts within the built environment.
Another object of the invention is to offer an eco-friendly alternative to traditional concrete by partially substituting virgin aggregates with RCA, derived from construction and demolition waste. This substitution reduces reliance on natural resources, minimizing the extraction of aggregates from quarries and reducing the environmental impact associated with material production. The use of RCA also helps in diverting construction waste from landfills, addressing waste management challenges in urban areas.
Yet another object of the invention is to enhance the thermal insulation properties of concrete bricks. By incorporating biochar, a lightweight and porous material, the invention aims to improve the energy efficiency of buildings constructed with these bricks. This insulation capability can lead to reduced energy consumption for heating and cooling, contributing to long-term energy savings and operational carbon reduction in buildings.
Still another object of the invention is to create a construction material with improved durability and water retention properties. Biochar's ability to absorb and retain water helps reduce the risk of moisture-related damage, such as cracking, thereby extending the lifespan of the concrete. Combined with RCA, which aids in controlling hydration within the concrete mix, the invention strives to produce a material with increased structural integrity and longevity, suitable for a range of construction applications.
A further object of the invention is to support sustainable urban development by promoting a circular economy within the construction sector. The invention utilizes locally available recycled materials, reducing transportation costs and emissions, while also supporting local recycling industries. This aligns with sustainable development goals by creating value from waste and enabling cities to build sustainably with reduced environmental impact.

SUMMARY OF THE INVENTION:
The invention provides a process for producing concrete bricks infused with recycled concrete aggregates (RCA) and biochar, designed to enhance carbon sequestration within building materials while utilizing waste-derived components. These concrete bricks offer a sustainable solution that addresses multiple environmental challenges, including reducing carbon emissions, promoting resource efficiency, and improving waste management. By incorporating RCA and biochar, the invention creates a material that supports carbon capture efforts, minimizes the use of virgin aggregates, and repurposes construction waste, aligning with global sustainability objectives.
An inventive aspect of the invention is to provide a carbon-sequestering material by infusing biochar into the concrete brick composition. Biochar, produced through pyrolysis of organic waste, is a carbon-rich material capable of storing carbon for long periods, effectively reducing greenhouse gases. The addition of biochar to the concrete mix not only contributes to carbon sequestration but also improves the material's strength and thermal insulation, creating a multifunctional product that benefits both the environment and building performance.
Another inventive aspect of the invention is to provide a concrete brick that partially replaces virgin aggregates with RCA, derived from construction and demolition waste. This substitution reduces dependency on naturally sourced aggregates, lowering the environmental impact of raw material extraction. RCA provides a viable, eco-friendly alternative by recycling concrete waste, reducing landfill use, and supporting a circular economy model. The combination of RCA with biochar in the concrete mix enhances the overall sustainability of the material, contributing to resource conservation and waste minimization.
Yet another inventive aspect of the invention is to improve the thermal properties of concrete bricks through biochar integration. The lightweight, porous nature of biochar enhances the insulation properties of the concrete, making it suitable for energy-efficient building applications. Improved insulation reduces the need for heating and cooling, leading to significant energy savings over time and a reduction in the building's operational carbon footprint. This energy efficiency feature adds long-term environmental and economic value to the concrete bricks.
Still another inventive aspect of the invention is to create a durable and resilient construction material by leveraging the water retention properties of biochar and the structural benefits of RCA. Biochar's capacity to retain water reduces the risk of cracking and moisture-related damage in concrete, while RCA contributes to increased density and stability within the material. This combination of features extends the lifespan of the concrete bricks, making them suitable for diverse construction needs and more resistant to environmental stresses.
A further inventive aspect of the invention is to support sustainable urban development and local economies by utilizing readily available, recycled materials. The process for producing these RCA and biochar-infused concrete bricks can be adapted to various regions, encouraging local recycling efforts and reducing transportation costs and associated emissions. By promoting a circular economy in construction, the invention enables urban centers to build sustainably, turning waste into a valuable resource and enhancing environmental responsibility in the construction sector.

BRIEF DESCRIPTION OF DRAWINGS:
The accompanying drawing illustrates an embodiment of "A Process of Producing RCA and Biochar-Infused Concrete Bricks for Improved Carbon Sequestration," highlighting key aspects of the formulation and production method. This figure is intended for illustrative purposes to aid in understanding the invention and is not meant to limit its scope.
FIG. 1 depicts a block diagram of the RCA and biochar-infused concrete brick production process, showing its composition and integration stages, according to an embodiment of the present invention.
The drawing provided will be further described in detail in the following sections. It offers a visual representation of the material composition, processing stages, and end-product structure, helping to clarify and support the detailed description of the invention.

DETAILED DESCRIPTION OF THE INVENTION:
In the following detailed description, reference is made to the accompanying drawings which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that the embodiments may be combined, or that other embodiments may be utilized and that structural and logical changes may be made without departing from the spirit and scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims and their equivalents.
The present invention is described in brief with reference to the accompanying drawings. Now, refer in more detail to the exemplary drawings for the purposes of illustrating non-limiting embodiments of the present invention.
As used herein, the term "comprising" and its derivatives including "comprises" and "comprise" include each of the stated integers or elements but does not exclude the inclusion of one or more further integers or elements.
As used herein, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. For example, reference to "a device" encompasses a single device as well as two or more devices, and the like.
As used herein, the terms "for example", "like", "such as", or "including" are meant to introduce examples that further clarify more general subject matter. Unless otherwise specified, these examples are provided only as an aid for understanding the applications illustrated in the present disclosure, and are not meant to be limiting in any fashion.
As used herein, the terms ""may", "can", "could", or "might" be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic.
Exemplary embodiments will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments are shown. These exemplary embodiments are provided only for illustrative purposes and so that this disclosure will be thorough and complete and will fully convey the scope of the invention to those of ordinary skill in the art. The invention disclosed may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Various modifications will be readily apparent to persons skilled in the art. The general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the invention. Moreover, all statements herein reciting embodiments of the invention, as well as specific examples thereof, are intended to encompass both structural and functional equivalents thereof. Additionally, it is intended that such equivalents include both currently known equivalents as well as equivalents developed in the future (i.e., any elements developed that perform the same function, regardless of structure). Also, the terminology and phraseology used is for the purpose of describing exemplary embodiments and should not be considered limiting. Thus, the present invention is to be accorded the widest scope encompassing numerous alternatives, modifications and equivalents consistent with the principles and features disclosed. For purpose of clarity, details relating to technical material that is known in the technical fields related to the invention have not been described in detail so as not to unnecessarily obscure the present invention.
Each of the appended claims defines a separate invention, which for infringement purposes is recognized as including equivalents to the various elements or limitations specified in the claims. Depending on the context, all references below to the "invention" may in some cases refer to certain specific embodiments only. In other cases, it will be recognized that references to the "invention" will refer to subject matter recited in one or more, but not necessarily all, of the claims.
All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., "such as") provided with respect to certain embodiments herein is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention otherwise claimed. No language in the specification should be construed as indicating any non-claimed element essential to the practice of the invention.
Various terms as used herein are shown below. To the extent a term used in a claim is not defined below, it should be given the broadest definition and persons in the pertinent art have given that term as reflected in printed publications and issued patents at the time of filing.
Groupings of alternative elements or embodiments of the invention disclosed herein are not to be construed as limitations. Each group member can be referred to and claimed individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience and/or patentability. When any such inclusion or deletion occurs, the specification is herein deemed to contain the group as modified thus fulfilling the written description of all groups used in the appended claims.
With reference to FIG. 1, in an embodiment of the present invention, the invention outlines a process for producing environmentally sustainable concrete bricks infused with recycled concrete aggregates (RCA) and biochar, aimed at improving carbon sequestration within construction materials. By partially replacing virgin aggregates with RCA and incorporating biochar derived from organic waste, the invention presents a sustainable and effective approach to creating carbon-sequestering concrete. This process not only offers an environmentally friendly alternative to traditional concrete but also addresses multiple environmental concerns, including carbon emissions, resource depletion, and waste management.
The process begins by integrating RCA as a partial replacement for virgin aggregates in a concrete mixture. RCA, sourced from construction and demolition waste, is introduced to reduce reliance on natural aggregates, contributing to resource conservation and lowering the environmental impact of aggregate extraction. By replacing 20% to 50% of virgin aggregates with RCA, the invention creates a concrete mixture that incorporates recycled materials without compromising structural integrity. This integration of RCA contributes to a circular economy model by recycling waste materials and reintegrating them into new construction applications.
Biochar, produced through the pyrolysis of organic waste, is incorporated into the concrete mixture to enhance carbon sequestration capabilities. Pyrolysis is a process that involves heating organic materials in an oxygen-limited environment, converting them into carbon-rich biochar. Biochar's high carbon content makes it an ideal material for sequestering carbon within construction materials. By capturing carbon from organic waste that would otherwise decompose and release greenhouse gases, biochar locks this carbon into the concrete, providing a long-term storage solution that contributes to climate change mitigation.
The biochar is incorporated at a weight percentage of 5% to 15% of the total concrete mixture, ensuring optimal balance between carbon sequestration and concrete performance. This percentage provides sufficient carbon content to enhance sequestration without affecting the structural properties of the concrete. The addition of biochar also improves the thermal insulation properties of the resulting concrete brick. Biochar's lightweight and porous nature reduces the thermal conductivity of the concrete, which can lead to energy savings in buildings constructed with these bricks. This improvement in insulation contributes to lower energy consumption for heating and cooling, reducing the building's operational carbon footprint over its lifespan.
To prepare the concrete mixture, the RCA and biochar are thoroughly mixed with cementitious materials to create a homogeneous composition. This ensures even distribution of RCA and biochar throughout the mixture, which is essential for maintaining consistent properties across the finished concrete brick. The homogeneity of the mixture plays a critical role in achieving the desired structural properties and durability of the bricks. By thoroughly blending the RCA and biochar with cementitious components, the invention creates a stable, balanced concrete material that combines the strengths of recycled and carbon-sequestering components.
Pre-treatment of RCA is performed to improve its compatibility with cementitious materials. This pre-treatment step involves washing and grading the RCA to remove impurities and ensure uniformity within the aggregate. Cleaning the RCA is essential to eliminate contaminants that could interfere with the bonding properties of the concrete, while grading ensures that the aggregate is of consistent size, which supports a stable concrete structure. By ensuring high-quality RCA, the invention maintains the structural integrity and durability of the finished concrete brick, making it suitable for a variety of construction applications.
Once the RCA, biochar, and cementitious materials are mixed to form a homogeneous composition, the concrete mixture is cured under controlled conditions. Curing is performed at temperatures ranging from 20°C to 50°C over a period of 7 to 28 days. This controlled curing environment promotes optimal hydration and hardening of the concrete, leading to improved strength development and durability. By carefully managing the curing temperature and duration, the invention produces concrete bricks with enhanced structural properties, including compressive strength comparable to or exceeding that of conventional concrete bricks. This ensures that the RCA and biochar-infused concrete bricks can be used in load-bearing applications, providing a sustainable yet strong material for construction.
The resulting concrete brick is characterized by a unique composition that includes RCA and biochar, offering properties that make it suitable for sustainable construction applications. With improved carbon sequestration, thermal insulation, and durability, these bricks represent a forward-thinking solution to the environmental challenges facing the construction industry. The inclusion of biochar reduces the thermal conductivity of the brick by at least 15% compared to traditional concrete bricks, enhancing energy efficiency in buildings. This thermal insulation capability not only contributes to reduced heating and cooling needs but also aligns with sustainable building practices that emphasize energy efficiency and reduced carbon emissions.
In addition to insulation benefits, the water retention properties of biochar contribute to the durability of the concrete brick. Biochar's ability to absorb and retain water helps to reduce the risk of moisture-related cracking and expansion, which can compromise the structural integrity of conventional concrete over time. The retained moisture also aids in controlling the hydration process within the concrete, leading to a denser, more resilient material. Combined with RCA, which adds density and stability to the mixture, biochar helps create a durable and long-lasting concrete brick that withstands environmental stresses, reducing the need for frequent maintenance or replacement.
The invention also supports sustainable urban development by promoting the use of locally available recycled materials. RCA can be sourced from nearby construction sites, reducing the demand for quarrying and minimizing transportation emissions associated with sourcing virgin aggregates. Similarly, biochar can be produced from locally available agricultural or forestry waste, further supporting regional recycling efforts and reducing the ecological footprint of construction materials. By using waste-derived components, this process contributes to a circular economy, where waste materials are repurposed to create new value in construction. This approach not only benefits the environment but also enhances local economies by providing a sustainable alternative to conventional building materials.
The method for producing RCA and biochar-infused concrete bricks is adaptable to various regions and waste sources, making it applicable across different construction scenarios. Biochar can be derived from a range of organic waste materials, such as rice husk, straw, and wood chips, offering flexibility in raw material sourcing and enhancing the sustainability of the process. This adaptability allows the invention to be implemented in diverse geographic areas, supporting global sustainability efforts by offering a scalable, eco-friendly construction solution. The method also aligns with international sustainability objectives, such as the United Nations Sustainable Development Goals (SDGs), particularly in the areas of sustainable cities and climate action.
Through its innovative use of RCA and biochar, this invention provides an effective method for enhancing carbon sequestration in construction materials. The process reduces carbon emissions associated with virgin aggregate extraction and concrete production, while biochar integration enables long-term carbon capture within the built environment. The invention thus addresses multiple environmental challenges simultaneously, including carbon sequestration, waste reduction, and sustainable resource management. By creating a construction material that actively contributes to carbon reduction, this process offers a valuable tool for mitigating climate change within the construction industry.
Overall, this invention represents a comprehensive approach to sustainable concrete production, combining waste utilization, carbon capture, and enhanced material performance. By addressing key environmental concerns through its innovative use of RCA and biochar, the invention contributes to the development of sustainable construction practices that reduce the ecological footprint of building materials. The process provides a practical, scalable solution for integrating recycled and carbon-sequestering components into concrete, supporting the construction industry's transition toward a more sustainable future. Through ongoing research and development, this invention has the potential to transform the construction sector, paving the way for a greener, more responsible built environment.

ADVANTAGES OF THE INVENTION:
The prime advantage of the invention is to provide an eco-friendly construction material that sequesters carbon, helping reduce the carbon footprint of buildings and contributing to climate change mitigation efforts within the construction sector.
Another advantage of the invention is its use of recycled concrete aggregates (RCA), which reduces dependence on virgin materials and minimizes the environmental impact of aggregate extraction, aligning with sustainable resource management practices.
Yet another advantage of the invention is the improved thermal insulation properties achieved through biochar integration. This feature helps reduce energy consumption in buildings, promoting long-term energy efficiency and operational carbon reduction.
Still another advantage of the invention is enhanced durability due to biochar's water retention properties, which reduce moisture-related cracking, extending the lifespan of concrete structures and lowering maintenance requirements over time.
A further advantage of the invention is its adaptability to local resources. Both RCA and biochar can be sourced regionally, reducing transportation emissions and supporting local recycling efforts in urban areas.
An additional advantage is that the invention supports a circular economy by repurposing waste materials into valuable construction products, decreasing landfill waste, and promoting sustainable urban development practices.
Another advantage of the invention is its compatibility with existing concrete production processes, allowing it to be easily integrated into current industry practices without significant modifications, thus facilitating rapid adoption.
Yet another advantage is the invention's contribution to international sustainability goals, such as the United Nations Sustainable Development Goals, by offering a scalable, sustainable construction solution that addresses climate action and resource conservation.
, Claims:CLAIM(S):
We Claim:
1. A process for producing RCA and biochar-infused concrete bricks for carbon sequestration, comprising:
a. incorporating recycled concrete aggregates (RCA) as a partial replacement for virgin aggregates in a concrete mixture,
b. integrating biochar produced through the pyrolysis of organic waste into the concrete mixture to enhance carbon sequestration properties,
c. mixing the RCA and biochar with cementitious materials to create a homogeneous composition, and
d. curing the concrete mixture under controlled conditions to produce a concrete brick with improved structural properties.
2. The process of claim 1, wherein the biochar is incorporated in an amount of 5% to 15% by weight of the total concrete mixture, providing enhanced carbon capture and improved insulation properties in the finished concrete brick.
3. The process of claim 1, wherein the RCA content constitutes 20% to 50% by weight of the total aggregate used in the concrete mixture, reducing dependency on virgin materials while maintaining structural integrity.
4. The process of claim 1, wherein the biochar is derived from agricultural waste materials selected from the group consisting of rice husk, straw, and wood chips, enhancing the sustainability of the production process.
5. The process of claim 1, further comprising the step of pre-treating the RCA by washing and grading to remove impurities and improve compatibility with the cementitious materials in the concrete mixture.
6. The process of claim 1, wherein the curing step is performed at controlled temperatures between 20°C and 50°C for a period of 7 to 28 days, ensuring optimal strength development and durability in the concrete brick.
7. A concrete brick produced by the process of claim 1, characterized by a composition that includes RCA and biochar, with properties of enhanced carbon sequestration, thermal insulation, and durability suitable for construction applications.
8. The concrete brick of claim 7, wherein the biochar-infused composition provides a thermal conductivity reduction of at least 15% compared to conventional concrete bricks, contributing to energy efficiency in building structures.
9. The concrete brick of claim 7, wherein the inclusion of RCA and biochar results in a compressive strength comparable to or exceeding standard concrete bricks, supporting its use in load-bearing applications.
10. A method for enhancing carbon sequestration in concrete building materials, comprising:
a. selecting biochar with a high carbon content for incorporation into a concrete mix,
b. combining the biochar with RCA as a partial aggregate replacement,
c. integrating the biochar-RCA blend with cementitious materials, and
d. forming and curing the blend into concrete bricks with improved carbon sequestration capabilities.

Documents