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UTILISATION OF RICE HUSK ASH (RHA) IN THE PRODUCTION OF MAGNESIUM OXIDE (MGO)-BASED CEMENT
Abstract:
The utilization of industrial by-products and waste materials in construction materials has gained significant attention due to its potential environmental and economic benefits. Rice husk ash (RHA) is a by-product generated during the combustion of rice husk, which is abundantly available and often considered as waste. This abstract presents an overview of the research conducted on the incorporation of RHA in the production of magnesium oxide (MgO)-based cement.
Magnesium oxide (MgO) is an inorganic compound known for its excellent thermal stability, low carbon footprint, and resistance to fire. It has shown promise as a sustainable alternative to traditional cement due to its lower carbon dioxide emissions during production. However, the brittleness and slow setting time of pure MgO-based cement limit its practical applications.
To address these limitations, researchers have investigated the incorporation of RHA as a supplementary material in MgO-based cement formulations. RHA contains a significant amount of amorphous silica, which can enhance the reactivity and mechanical properties of the cementitious system. The pozzolanic properties of RHA contribute to the formation of additional hydration products, resulting in improved strength, durability, and reduced shrinkage.
The research findings indicate that the addition of RHA in MgO-based cement can significantly improve its mechanical and physical properties. The optimal dosage of RHA varies depending on factors such as the particle size, pozzolanic activity, and specific application requirements. The use of RHA can also help in reducing the demand for conventional cement, leading to a reduction in greenhouse gas emissions and environmental impact.
Moreover, the incorporation of RHA provides a sustainable solution for the utilization of a waste material that would otherwise be disposed of, contributing to waste management and reducing the environmental burden associated with its disposal. Additionally, the economic benefits associated with the utilization of RHA can be substantial, as it offers a cost-effective alternative to conventional cement production.
In conclusion, the utilization of rice husk ash (RHA) in the production of magnesium oxide (MgO)-based cement offers a promising avenue for sustainable and environmentally friendly construction materials. Further research and development in this area are warranted to optimize the RHA dosage, investigate its long-term performance, and explore potential applications in the construction industry.
UTILISATION OF RICE HUSK ASH (RHA) IN THE PRODUCTION OF MAGNESIUM OXIDE (MGO)-BASED CEMENT. GET MORE MATERIALS SCIENCE AND ENGINEERING
