About Lesson
Bulking of sand
- The moisture 5-8 5 in sand increases the volume of sand, it is known as bulking of sand.
- Moisture in sand causes film of water around the sand particles that pushes the other sand particles upward and hence increases the volume of sand.
- Apart from moisture content, it is also depends on grain size of sand particles.
- Finer the sand, the volume will increase more for given moisture content.
- The increase of volume of sand may go upto 20-40% when moisture content is about 4-8%.
- The volume of dried sand and completely floated sand will have the same volume.
Bulking of sand := V1- V2/V2 x 100
Or , = D1 – D2/D2 x 100
where, V1- initial volume
V2- final volume
D1 – initial depth
D2- final depth