Unit weight of 10mm, 12mm, 20mm & 40mm coarse aggregate | density of coarse aggregate | unit mass of 10mm, 12mm, 12.5mm, 20mm & 40mm coarse aggregate in kg/m3 | what is unit weight of course aggregate | Unit weight of 10mm coarse aggregate | Unit weight of 12mm coarse aggregate | Unit weight of 20mm coarse aggregate | Unit weight of 40mm coarse aggregate.

The quantity of aggregate in construction work calculated in kg per cubic metre or kg per cubic foot or in MT, most of people familiar with coarse aggregate or stone but some time easy question is asked what is unit weight of course aggregate. As you know that aggregate is consist of fine aggregate and coarse aggregate which is available in different size such as 10mm, 12mm, 12.5mm, 20 mm and 40mm. 10 mm and 12mm size of aggregate is less coarse while 20 mm and 40 mm aggregate is coarse aggregate.

Aggregate/ gravel/ coarse sand is most important construction material used in construction industry of various project such as building, Bridge, dams, construction aggregate, or simply aggregate, is a broad category of coarse- to medium-grained particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates. Aggregates are the most mined materials in the world.

Generally fine aggregate consist of sand silt clay and coarse aggregate consists fine gravel medium gravel coarse gravel pebbles cobbles and boulders. Fine aggregate having size less than 4.75 mm and coarse aggregate size ranging between more than 4.75 mm to 256 mm.

Aggregate in general should consist of natural occurring stones such as crushed, uncrushed or broken, riverbed single or pit gravel. It should be hard, enough strong, dense, durable, and clean. It must be free from veins, adherent coatings and injurious amounts of disintegrated pieces, alkali, vegetable matter and other deleterious substances. River gravels make the best coarse aggregate. Angular and roughly cubical particles in shape are ideal. Flaky pieces shall be avoided. It should confirm to IS 2383(I).

**Unit weight of 10mm, 12mm, 20mm & 40mm coarse aggregate**

We know that while finding the bulk density of different types of aggregate, their value is not fixed but it depends on handling how you can handle and minerals composition of the aggregate. So density or unit weight of aggregate is not fix but it ranging between 1520 kg/m3 to 1680 kg/m3.

The typical density or unit weight of 10 mm aggregate is range between 1,525 kg/m3 and 1,575 kg/m3 or an average of 1,550 kilograms per cubic meter.

The typical density or unit weight of 12 mm aggregate is range between 1,500 kg/m3 and 1,550 kg/m3 or an average of 1,525 kilograms per cubic meter.

The typical density or unit weight of 20 mm aggregate is range between 1,475 kg/m3 and 1,525 kg/m3 or an average of 1,500 kilograms per cubic meter.

The typical density or unit weight of 40 mm aggregate is range between 1,425 kg/m3 and 1,475 kg/m3 or an average of 1,450 kilograms per cubic meter.

The typical density (or unit weight) of coarse aggregate (20 mm and 40 mm) is range between 1,425 kg/m3 and 1,525 kg/m3 or an average of 1,475 kilograms per cubic meter.

The typical density (or unit weight) of fine aggregate (10 mm and 12 mm) is range between 1,500 kg/m3 and 1,575 kg/m3 or an average of 1,550 kilograms per cubic meter.

Unit weight of aggregate in kilogram per cubic meter depends on density of aggregate, minerals composition and their size. Lesser dimension of aggregate have higher density due to less presence of air voids & higher dimension of aggregate have lower density due to higher presence of air voids.

10mm and 12mm size of less coarse aggregate have higher density due to lesser presence of air voids than 20 mm size and 40 mm of coarse aggregate. if there density is varies that’s why unit weight of aggregate is also varies.

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**Unit weight of aggregate**

Unit weight or density of 10mm, 12mm, 12.5mm, 20mm & 40mm coarse aggregate/ crushed stone/ gravel/ coarse sand is ranging between 1425 kg/m3 to 1575 kg/m3, it means weight of 1 cubic meter of course aggregate is around 1425kg to 1575kg or 1.425 to 1.575 MT. It’s advisable to sample the coarse aggregates or crushed stone from the site and find out the bulk density so that exact value can be known.

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**Unit weight of 10mm aggregate**

The typical unit weight (or density) of a 10mm coarse aggregate/ crushed stone/ gravel/ coarse sand is range between 1525 kg/m3 and 1575 kg/m3. This means that the weight of 1 cubic meter of 10mm course aggregate is about 1525 kg to 1575 kg (or 1.525 to 1.575 MT).

10mm aggregate is used in self compacting concrete, produced by crushing and screening blast furnace slag to a single size 10mm aggregate consisting of angular to roughly cubical shaped particles with a characteristically vesicular structure and rough surface texture.

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**Unit weight of 12mm aggregate**

The typical unit weight (or density) of a 12mm coarse aggregate/ crushed stone/ gravel/ coarse sand is range between 1500 kg/m3 and 1550 kg/m3. This means that the weight of 1 cubic meter of 12mm course aggregate is about 1500 kg to 1550 kg (or 1.5 to 1.55 MT).

**Unit weight of 20mm aggregate**

The typical unit weight (or density) of a 20mm coarse aggregate/ crushed stone/ gravel/ coarse sand is range between 1475 kg/m3 and 1525 kg/m3. This means that the weight of 1 cubic meter of 20mm course aggregate is about 1475 kg to 1525 kg (or 1.475 to 1.525 MT).

**Unit weight of 40mm aggregate**

The typical unit weight (or density) of a 40mm coarse aggregate/ crushed stone/ gravel/ coarse sand is range between 1425 kg/m3 and 1475 kg/m3. This means that the weight of 1 cubic meter of 40mm course aggregate is about 1425 kg to 1475 kg (or 1.425 to 1.475 MT).

**Conclusions:-**

The typical unit weight (or density) of coarse aggregate (10mm, 12mm, 20mm & 40mm) is range between 1425 kg/m3 and 1575 kg/m3, or an average of 1500 kg/m3.