International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 04 | Apr 2025
p-ISSN: 2395-0072
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Analysis of Carbonated Concrete used in Building Construction Vivek Tiwari1, Adarsh Tiwari2, Md. Tahir Ansari3, Devendra Singh4, Akash Verma5 , Raj Kumar Gupta6 1 student, Department of Civil Engineering GITM, Lucknow
2 student, Department of Civil Engineering GITM, Lucknow 3 student, Department of Civil Engineering GITM, Lucknow 4 student, Department of Civil Engineering GITM, Lucknow 5 student, Department of Civil Engineering GITM, Lucknow
6 Associate professor , Department of Civil Engineering GITM, Lucknow,
---------------------------------------------------------------------***--------------------------------------------------------------------is exploring various strategies to reduce its carbon footprint. Abstract -Carbonated concrete is created through a
One promising approach is the development and use of carbonated concrete, which incorporates CO2 into the curing process. By utilizing captured CO2, carbonated concrete not only sequesters emissions but also enhances the material properties of concrete.
chemical process known as carbonation, where CO2 reacts with calcium silicates in the cement matrix. This process can occur both during the mixing of concrete and during the curing phase, resulting in the formation of calcium carbonate, which contributes to the concrete’s strength and durability. Furthermore, the use of supplementary Cementous materials, such as slag or fly ash, in conjunction with carbonation can further improve the sustainability of concrete production.
Carbonated concrete is created through a chemical process known as carbonation, where CO2 reacts with calcium silicates in the cement matrix. This process can occur both during the mixing of concrete and during the curing phase, resulting in the formation of calcium carbonate, which contributes to the concrete's strength and durability. Furthermore, the use of supplementary cementitious materials, such as fly ash or slag, in conjunction with carbonation can further improve the sustainability of concrete production.
Carbonated concrete utilizes this concept by incorporating CO2 into the concrete mix during the curing process. The carbonation reaction involves CO2 reaction with the calcium compounds present in the cement matrix, resulting in the formation of stable calcium carbonate. This process not only sequesters CO2 but also enhances the chemical and physical properties of the concrete, making it a valuable alternative to traditional concrete.
Carbonated concrete utilizes this concept by incorporating CO2 into the concrete mix during the curing process. The carbonation reaction involves CO2 reacting with the calcium compounds present in the cement matrix, resulting in the formation of stable calcium carbonate. This process not only sequesters CO2 but also enhances the chemical and physical properties of the concrete, making it a valuable alternative to traditional concrete.
Key Words: Carbonated concrete, carbonation, cement matrix, sustainability.
1.INTRODUCTION Concrete is an essential material in modern construction, serving as the backbone of infrastructure such as roads, bridges, buildings, and dams. Its widespread use can be attributed to its strength, versatility, and durability. However, the production of concrete is not without significant environmental consequences. Traditional concrete manufacturing processes are highly energyintensive, primarily due to the production of Portland cement, which involves heating limestone to high temperatures. This process not only consumes a large amount of energy but also releases substantial amounts of carbon dioxide (CO2) into the atmosphere—approximately 8% of global CO2 emissions originate from cement production.
2. METHODOLOGY The methodology for producing carbonated concrete involves a systematic approach that encompasses material selection, mixing, carbonation, and testing. This detailed guide aims to ensure optimal performance, sustainability, and practical application in the construction industry. 2.1 Material Selection 2.1.1 Cement: The most commonly used binder in concrete. Its properties can be enhanced with supplementary cementitious materials (SCMs). These incorporate materials like fly ash, slag, or silica fume, which not only improve sustainability by
1.1 Case Study In light of increasing concerns over climate change and the need for sustainable development, the construction industry
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