African Sand
摘要
African sand, typically sourced from diverse ecological zones of the continent, including riverbeds, deserts, and coastal areas, is used as a fine aggregate in cement and concrete production. The characteristics of this sand, such as grain size, shape, and mineral composition, significantly influence the properties of the concrete. The regional variability in sand quality can affect the strength, durability, and workability of concrete. Understanding these properties is crucial, particularly under severe environmental conditions where materials are exposed to extreme temperatures, moisture, and chemical aggression which can accelerate degradation processes.