Our paper examines the potential of rice husk ash (RHA) as a sustainable construction material. RHA, derived from burning rice husk, is rich in amorphous silica and offers environmental and economic benefits. However, its use is limited by processing challenges and a lack of understanding of its properties. We review RHA production technologies, its properties, and its impact on concrete's mechanical properties, durability, and permeability. Key factors like burning temperature and pretreatment techniques significantly influence RHA performance. Incorporating 10–20% RHA can enhance concrete strength. Read the full paper here.
Harnessing rice husk ash for sustainable construction: a comprehensive review of challenges, opportunities, and future perspectives
Rice Husk Ash (RHA), rich in amorphous silica, offers a sustainable alternative to cement (10–20% replacement), enhancing strength and durability while reducing carbon emissions. Controlled production, use in geopolymers and 3D concrete printing present key opportunities for green construction.