CARBON NEGATIVE BUILDING BLOCK AND PRODUCTION METHOD

Abstract

The invention specifically relates to a carbon-negative building block and its production method, which is manufactured by combining materials such as waste silica sand (which may be based on zirconium, chromite or olivine, and is obtained from foundries as natural or recycled casting sand, without any binder such as cement, alumina cement, or alkali activator), steel slag formed during the refining and oxidation of metal melt in steel production, fly ash (a byproduct of thermal power plants), microsilica and aggregate, and curing them with carbon gas (CO2).

Description

CARBON NEGATIVE BUILDING BLOCK AND PRODUCTION METHOD Technical Area Our invention is generally used in the construction industry for the construction of interior and exterior walls. only cement, alumina cement, and alkali activator, without any binder such as those mentioned. by curing a mixture of industrial waste-based components with carbon dioxide (CO₂). 2 This relates to the resulting carbon-negative building block and its production method. The invention specifically applies to any binder such as cement, alumina cement, or alkaline activator. natural or recycled casting sand obtained from foundries, which does not contain Waste silica sand, which can be zircon, chromite, or olivine-based, is used in steel production to dissolve melt metal. Steel slag, formed during refining and oxidation, is a byproduct of thermal power plants. By combining materials such as fly ash, microsilica, and aggregates, carbon dioxide (CO₂) is produced. 2 This relates to the carbon negative building block produced by curing and the production method. State of the Art Today, the construction industry deals with the interior and exterior of all types of buildings, such as houses, workplaces, and shopping malls. Building blocks are load-bearing structural elements that do not require plaster or paint in wall construction. It is used. There are many differences in the current production methods. The current methods are traditional. Concrete is produced by mixing cement, aggregate, water, and chemical additives. In traditional concrete production, cement use accounts for approximately 8% of global CO2 emissions. 2 CO2 emissions contribute to the environment; global warming, climate change, marine life. 2 It has negative effects such as rising levels and air pollution. In the current state of the art, high temperatures are used in casting molds in foundries and Silica sand, which can withstand chemical reactions, is used. Silica sand, when used... When steel slag completes its function in molds and is not reused, it becomes waste. Steel slag, steel occurs during the melting of metals or metal-containing ores in production 35 is waste. Fly ash, a byproduct of thermal power plants, is the exhaust of coal-fired thermal power plants. 1 Waste ash is the residue that is electrostatically or mechanically precipitated from gases. Waste is recycled. If not addressed, it leads to health problems, environmental pollution, and economic losses. The patent application numbered 2009 / 00643 relating to the previous technique is "Cementless lightweight structure". The invention abstract states, "This invention is based on the production method of acidic pumice, boron..." Cementless lightweight material obtained by mixing waste and some chemicals in different fractions. It is related to a building material production method (10). In terms of unit volume and weight, brick, Utilizing boron waste as an alternative to cement, which is lighter than materials like briquettes. a building material that provides low cost, high mechanical strength, heat and sound insulation (8) It has been stated that "the aim is to achieve this." However, this invention mentioned involves components based on industrial waste. Zircon, which is natural or recycled casting sand obtained from foundries, Waste silica sand, which can be chromite or olivine-based, is used as exhaust material from coal-fired thermal power plants. Waste products that are electrostatically or mechanically precipitated from gases and have pozzolanic properties. fly ash, which is a component of steel production, is produced during the refining and oxidation of molten metal. There is no mention of the steel slag that forms and exhibits binding properties. Furthermore, the aforementioned This invention involves industrial waste-based components containing 60-100% CO₂ for 24-72 hours. The curing of the mixture under atmospheric conditions is not mentioned. In the patent application numbered KR20140141995A relating to the previous technique, "Using Coal Ash The invention is described as "Composition of Cementless Concrete with Lightweight Aggregate" in the abstract section. “The present invention uses coal ash to create artificial light, composed of bottom ash and fly ash. The aggregate relates to cementless concrete composition; here, embedded in a heat plant. exhibiting magnetism among wet base ash and having a size of 5 mm or more bottom ash is removed, thus preventing expansion after corrosion of magnetic bottom ash. Cracks in concrete caused by pressure can be prevented. Additionally, with the help of a magnet, cracks of 5 mm and above can be created. Bottom ash from which particles larger than and exhibiting magnetic properties have been removed, Fly ash is used as a coarse aggregate for concrete, without the use of cement as a binder. Blast furnace slag fine powder, sodium silicate and alkaline inorganic substances in appropriate proportions. Polymerization is achieved through activation by mixing, resulting in increased strength and processability. It has been stated that "it can be provided." However, in this invention mentioned, 60-100% efficiency is achieved within 24-72 hours. Carbon-negative building block produced by curing the mixture under CO₂-containing atmospheric conditions. There is no mention of its production. The existence of the technical problems explained above and the solutions provided to these problems The inadequacy of these materials has created a need to develop carbon-negative building blocks and production methods. Purpose of the Invention 2 The present invention meets the aforementioned requirements and eliminates all technical problems. with a carbon-negative building block and production method that removes and offers some additional advantages It is related. The main purpose of the invention is to combine any binder such as cement, alumina cement, or alkaline activator. Waste-based materials such as waste silica sand, steel slag, fly ash, and microsilica can be used without other materials. The production of high-strength building blocks by CO-curing a mixture of components. 2 is to ensure. Another purpose of the invention is to use cement, alumina cement, alkali activator, etc. in building block production. by not using any binders, CO2 that would result from the use of these binders 2 The goal is to produce carbon-negative building blocks by preventing emissions. Another purpose of the invention is to use waste silica sand, steel slag, and fly ash in building blocks. The goal is to ensure that waste is recycled and reintegrated into the economy. Another aim of the invention is to improve the strength of the building block with steel slag, fly ash and microsilica and The aim is to increase the level of commitment. Another aim of the invention is to reduce carbon emissions, accelerate early strength, and Carbon is incorporated into the building blocks using the CO2 curing method to increase the durability of the products. 2 The goal is to ensure his permanent imprisonment. The structural and characteristic features and all the advantages of the invention are detailed below. This will be understood more clearly thanks to the explanation, and therefore the evaluation will also be based on this. This should be done taking into account the detailed explanation. Detailed Description of the Invention The present invention meets the aforementioned requirements and eliminates all disadvantages. with a carbon-negative building block and production method that removes and offers some additional advantages It is related. This detailed explanation describes the carbon-negative building block and its manufacturing method, which are the subject of the invention. preferred structures are solely for the purpose of better understanding the subject. It is explained. 3 The carbon-negative building block, which is the subject of the invention, has high refractoriness when used in a stabilized form. The material is natural or recycled foundry sand, which may be based on zirconium, chromite, or olivine. The raw material is silica sand, electrostatically removed from the exhaust gases of coal-fired thermal power plants. fly ash, a waste product that is mechanically precipitated and exhibits pozzolanic properties, is used to treat steel. a binding agent formed during the refining and oxidation of molten metal in its production. Steel slag, which is shown, increases the strength and durability of concrete while reducing its permeability. improving its workability, balancing the thermal expansion of silica sand, and at low rates Microsilica, a superpozzolanic additive, is used in various materials such as sand, gravel, and crushed stone. granular natural or artificial aggregate of varying size, CO and water used in CO curing 2 2 It consists of. Carbon negative building blocks are preferred in structures where low weight is required, such as interior spaces. In wall applications, perlite is added because it becomes very light and porous when expanded. Carbon negative building blocks are preferred in industrial facilities and tunnels. silica sand is used to make the building blocks used in applications fire-resistant. instead, chromite, which has an iron magnesium chromate compound that can withstand temperatures of 1800-1900°C. It is the use of. Carbon negative building blocks are preferred in industrial facilities and tunnels. silica sand is used to make the building blocks used in applications fire-resistant. instead, magnesium iron silicates, which can withstand temperatures of 1750°C, are combined in various ratios. It involves the use of olivine, which is formed by its presence. The carbon-negative building block, which is the subject of the invention, contains silica sand, steel slag, fly ash, The component ratios of microsilica, aggregate, and CO2 depend on the intended use, the desired strength class, and 2 It varies depending on production conditions. In the production method of the carbon negative building block, silica, which is an industrial waste-based component, is used. sand, fly ash, steel slag, microsilica, aggregate and water will be homogenized. The mixture is stirred. The prepared mixture is poured into a building block mold. The mixture in the mold is left for 24-72 hours. Curing is carried out under atmospheric conditions containing 60-100% CO2 throughout. Curing process 2 During the process, the steel slag, silica sand, fly ash, and microsilica in the mixture undergo a pozzolanic reaction. It enters the body, forming calcium carbonate and giving the building block strength. 7-28 days It is left to stand in the environment for 35 days. After the building block is produced, it is subject to shape deformations and A compressive strength test is performed to measure its resistance to fracture. The building block is subjected to a CO2 test. 2 A CO2 capture test is conducted to test the building block's ability to permanently separate from the atmosphere. 2 4 Thermal expansion is measured with a dilatometer. The water absorption rate of the building block is measured. The block undergoes a freeze / thaw cycle test. 35

Claims

1. The invention relates to cement and alumina used in the construction industry for the construction of interior and exterior walls. a mixture that does not contain any binders such as cement or alkaline activator, making it workable. It is a carbon-negative building block containing water; its characteristic is:  High refractory, natural or recycled materials used after stabilization. Casting sand is made from silica sand, which can be based on zirconium, chromite, or olivine.  electrostatic or mechanical extraction from exhaust gases of coal-fired thermal power plants Fly ash, a waste product that settles and exhibits pozzolanic properties,  formed during the refining and oxidation of molten metal in steel production, steel slag exhibiting binding properties,  Increases the strength and durability of concrete, reduces its permeability, and improves its workability. improving, balancing the thermal expansion of silica sand and in low proportions Microsilica, a superpozzolanic additive,  Natural or artificial aggregates of various sizes, such as sand, gravel, and crushed stone,  CO used in the curing of CO 2 2 It includes.

2. It is a carbon negative building block conforming to Claim 1, and its characteristic is that it is suitable for areas requiring low weight, and interior spaces. Its advantage in wall applications is that it contains perlite, which becomes very light and porous when expanded.

3. It is a carbon negative building block conforming to Claim 1, whose characteristic is to make it fire-resistant. Iron magnesium chromate, which can withstand temperatures of 1800-1900°C, is used instead of silica sand. It contains chromite, which is a compound.

4. It is a carbon negative building block conforming to Claim 1, whose characteristic is to make it fire-resistant. Instead of silica sand, various magnesium iron silicates that can withstand temperatures of 1750°C are used. It contains olivine, which is formed by the presence of these elements in certain proportions.

5. The invention; cement and alumina used in the construction industry for the construction of interior and exterior walls. Carbon negative building block, containing no binders such as cement or alkaline activator. It is a production method, and its characteristic is;  Industrial waste-based components such as silica sand, fly ash, steel slag, and microsilica, Mixing 35% aggregate and water until homogenized.  Pouring the prepared mixture into the mold of the building block, 6  The molded mixture is placed in an atmosphere containing 60-100% CO for 24-72 hours. 2 curing under these conditions,  Steel slag, silica sand, fly ash and microsilica in the mixture during the curing process By undergoing a pozzolanic reaction, calcium carbonate is formed and becomes a building block. increasing durability,  Being left in the environment for 7-28 days It includes the steps involved in the process. 35 7