Pozzolans

Pozzolans are natural or industrial materials containing silica and alumina that, when mixed with lime or cement, react chemically to form compounds that strengthen concrete. They enhance durability, reduce environmental impact by replacing some cement, and improve resistance to water and chemicals. Common examples include volcanic ash, fly ash from power plants, and rice husk ash. By incorporating pozzolans, concrete becomes more sustainable, cost-effective, and durable, making them valuable in construction, especially for structures needing long-lasting, resilient materials.