Doctor Sand

Rajarhat, Kolkata, West Bengal

Plaster Sand is is a very fine grade of sand used for internal and external render, plastering and screeding. It creates a smooth and even finish and can be used for filling cracks. The Fineness Modulus of this sand is not less than 1.4.

Concrete Sand is coarse in nature and primarily used in the manufacture of ready mix concrete and asphalt. Grading of the sand conforming to IS 383:2016 and Fineness Modulus can range between anywhere from 2.3 to 3.2. It is graded and washed adequately to remove unwanted silt for optimum mix-design. Concrete M-sand is known for its lesser surface water absorption, water & cement saving features and achieving higher compressive strength.

Aggregates are inert granular materials such as sand that, along with water and portland cement, are an essential ingredient in concrete. 10 mm Aggregates are mainly used in ready mix concrete, asphalt/bitumen/concrete roads base and sub-base course, pavements, separately or mixed with other aggregates depending on the application.

Crushed stone sand is produced by crushing hard stones to less than 4.75mm particles by using roller crushers or vertical shaft impactors (VSI). Crushed stone sand has better particle shape and contains lower level of silt content when compared to CRF/crusher dust. In the construction industry crushed stone sand is used in mortars for brick laying and in concrete applications by suitably altering the mix-design.

Aggregates are inert granular materials such as sand that, along with water and portland cement, are an essential ingredient in concrete. 20 mm Aggregates are mainly used in ready mix concrete, asphalt/bitumen/concrete roads base and sub-base course, pavements, separately or mixed with other aggregates depending on the application.