The weight of 1 cubic meter (1 m³) of blue metal can vary depending on the specific type and size of blue metal and its density. However, as a general estimate, the density of blue metal is typically around 1.45 tonnes per cubic meter. So, 1m3 of blue metal would weigh approximately 1.45 metric tons or 1,450 kilograms.
Blue metal, also known as crushed stone or aggregate, comes in various sizes depending on its intended use in construction or landscaping. 10 mm, 20mm, 40mm graded crushed basalt rock or aggregate, which are used for different application, like in concrete, drainage, paving is called “blue metal” in Australia.
Fine Blue Metal (0-5mm): Used primarily as a bedding material for paving and concrete work. Medium Blue Metal (5-10mm): Often used for drainage and decorative purposes. Coarse Blue Metal (10-20mm): Suitable for drainage, backfilling, and as a base for concrete slabs. Large Blue Metal (20-40mm): Typically used as drainage rock.
The typical unit weight (or density) of a 10mm blue metal is range between 1,525 kg/m3 and 1,575 kg/m3. This means that the weight of 1 cubic meter of 10mm blue metal (course aggregate) is about 1,525 kg to 1,575 kg (or 1.525 to 1.575 MT).
The typical unit weight (or density) of a 12mm blue metal is range between 1,500 kg/m3 and 1,550 kg/m3. This means that the weight of 1 cubic meter of 12mm blue metal (course aggregate) is about 1,500 kg to 1,550 kg (or 1.5 to 1.55 MT).
The typical unit weight (or density) of a 20mm blue metal is range between 1,450 kg/m3 and 1,500 kg/m3. This means that the weight of 1 cubic meter of 20mm blue metal (course aggregate) is about 1,450 kg to 1,500 kg (or 1.45 to 1.5 metric tonnes).
The typical unit weight (or density) of a 40mm blue metal is range between 1,200 kg/m3 and 1,415 kg/m3. This means that the weight of 1 cubic meter of 40mm blue metal (course aggregate) is about 1,200 kg to 1,415 kg (or 1.2 to 1.415 metric tonnes).
Conclusions:
The density (unit mass) of 20mm blue metal (coarse aggregate) is typically around 1.45 tonnes per cubic meter. So, 1m3 of 20mm blue metal would weigh approximately 1.45 metric tons or 1,450 kilograms.