Converting Tonnes and Cubic Metres: Bulk Density and Sand Bulking
The weight and volume of materials change with compaction and moisture. Learn bulk density, the bulking of damp sand and how to estimate sand and gravel quantities.

Knowledge
Understanding the types of sand and gravel, how they are classified and how to choose these basic building materials.
The weight and volume of materials change with compaction and moisture. Learn bulk density, the bulking of damp sand and how to estimate sand and gravel quantities.
An exact order prevents rejected loads and site stoppages. A practical list of what a sand and gravel inquiry needs, from application to delivery.
Sand and gravel are classified by size, origin and particle shape. Learn the boundary between fine and coarse aggregate and the criteria for choosing materials.
Record the material type, approximate volume and delivery location so availability and terms can be reviewed.