Concrete sand fills the spaces between coarse aggregates like gravel or crushed stone in a mix. It increases concrete workability and ensures water, cement, and additive dispersion. Concrete sand increases the strength, density, and performance of cured concrete.

Discover the key differences between M sand and river sand, and make an informed choice for your construction needs when comparing M sand vs river sand.

 — Aggregates can be classified into three distinct categories: fine aggregate, coarse aggregate, and all-in aggregate. Fine aggregate, characterized by its passage through a 4.75 mm IS sieve, is further sub-divided into four grading zones (Zones 1-4), with Zone 4 being the most fine.

River sand is usually used in foundations, while concrete sand is used to make concrete and mortar. M-sand is an artificial version of natural sand and can make stronger structures, while fill sand and utility sand have various uses.

River sand or machine sand, crushed stone sand, and crushed gravel sand are the major sources of fine aggregate. Dolomite aggregates, crushed gravel or stone, and the natural disintegration of rock are the major sources of coarse aggregate.

 — Based on the grain size of the particle, sand is classified as Fine Sand(0.075 to 0.425mm), Medium Sand(0.425 to 2mm), and Coarse Sand(2.0 mm to 4.75mm) Based on origin, sand is classified as Pit sand, River sand, Sea sand, and manufactured sand.

Hydraulic cement concrete is a cement and water paste in which aggregate particles are embedded. Aggregate is granular material such as sand, gravel, crushed stone, blast-furnace slag, and lightweight aggregates that usually occupies approxi-mately 60 to 75% of the volume of concrete.

4.7–19 mm, or 19–37.5 mm. Fine aggregates generally consist of natural sand (river, floodplain, or marine) or crushed stone, whereas coarse aggregates consist of one or a combination of gravels or crushed stone. Sand is further subdivided into: • Coarse sand: 4.5–2.0 mm. • Medium sand: 2.0–0.425 mm. • Fine sand: 0.425–0.075 mm.

 — River sand is usually obtained from river banks, while pit sand is obtained by digging deep pits. On the other hand, crushed sand is obtained by the strategic crushing of rocks (to fine particles) in quarries.

3.2 COARSE AGGREGATE. The machine is used as a coarse aggregate with crushed annular granite metal of an average size of 20mm. It should be free of dust-free, clay particles, organic matter etc., The coarse aggregate with …