Sand

Sand is a very important construction material. It is a fine aggregate which is either natural or in the form of crushed stones and crushed gravel sand. It is finer than gravel and coarser than silt.

Sand is a basic raw material used in the construction industries. It is fine aggregate having the particle size between 150 microns and 4.75 mm. It should be clean and well graded (all particles that have the almost same size). Fine aggregates should be durable and free from gritty particles and injurious particles like dust, kankar, soft and flaky particles of shale. Fine aggregates should also be free from alkalis and salts.

The sand should not contain more than 8% of silt (particle size less than 150 microns), and it should be determined by “silt content field test”.There are some field test which are helps the homeowner to check the quality of sand (Fine Aggregate) used on the site. Here are the way to check the quality of sand (fine aggregates) at the site.