The Density Basket is an essential laboratory tool used in Bangladesh for determining the relative density and water absorption of coarse aggregates. It is widely utilized in civil engineering labs, construction sites, and quality control facilities to ensure that aggregate materials meet required standards for strength, durability, and performance in concrete and asphalt mixes.

Typically made of stainless steel mesh, the density basket is suspended in water using a suitable balance and frame. This setup allows for accurate measurement of aggregate weight in both dry and submerged conditions, which are used to calculate specific gravity and water absorption.