• Daundkar Ramesh Kailas

Concrete is a ubiquitous construction material, essential for the development of infrastructure worldwide. However, the production of cement, a crucial component of concrete, is an energy-intensive process that contributes significantly to global carbon emissions. To address this challenge, researchers have explored the use of industrial and agricultural waste products as alternative materials in concrete, with the aim of reducing the environmental impact and cost of construction. One such promising material is rice husk ash, a byproduct of the rice milling industry. Rice husk, an agricultural waste generated in abundance in rice-producing regions, can be converted into a pozzolanic material through controlled burning, resulting in rice husk ash. The use of rice husk ash as a partial replacement for cement in concrete not only provides a sustainable solution for waste management but also offers the potential for high-strength and durable concrete at a lower cost. Studies have shown that the incorporation of rice husk ash in concrete can enhance various properties, including compressive strength, durability, and workability. One study found that the optimum replacement of cement with rice husk ash was 10%, resulting in concrete with improved mechanical properties. Another investigation demonstrated that replacing up to 15% of cement with rice husk ash can produce concrete with satisfactory strength characteristics. The pozzolanic nature of rice husk ash allows it to react with the calcium hydroxide released during the hydration of cement, forming additional calcium silicate hydrate gel. This process not only improves the concrete's strength but also enhances its resistance to chemical attack and environmental degradation Furthermore, the use of rice husk ash in concrete can have a positive impact on the environment by reducing the demand for cement production, which is a significant contributor to global carbon emissions. The replacement of cement with rice husk ash can lead to a decrease in the energy consumption and greenhouse gas emissions associated with cement manufacturing

Rice husk ash, Agricultural waste, Environmental impact

"Rice Husk Ash Concrete - A Resource for High Strength and Durability at Low Cost", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.14-21, April-2019, Available :http://www.jetir.org/papers/JETIR1904X04.pdf

"Rice Husk Ash Concrete - A Resource for High Strength and Durability at Low Cost", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp14-21, April-2019, Available at : http://www.jetir.org/papers/JETIR1904X04.pdf