One of the most popular natural materials used in construction is sand, which is the basis for admixtures in concrete.

One of the most popular natural materials used in construction is sand, which is the basis for admixtures in concrete. It is needed for the production of dyes, screed, and masonry. The sand is divided into quarry, river, and sea sand. The size of the grains is divided into fine-grained and coarse-grained sand (fine or coarse).

The quarry one is made by crushing gravel and has a high clay content. It is mined in quarries and is used for ground coat. Usually, river sand does not have a large number of impurities and does not need additional cleaning. It is more useful in road and housing construction. Sea sand is one of the best fillers for the preparation of concrete, concrete mixtures, and reinforced concrete products.

Coarse sand is used for drainage structures and landscaping, while fine sand is suitable for finishing exterior and interior surfaces.

Source: bg.declic13.org