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What is blue metal aggregate?

June 29, 2023

Blue metal aggregate is a versatile construction material widely used in various applications such as road construction, landscaping, and drainage systems. Also known as blue metal gravel or simply blue metal, this aggregate derives its name from the bluish-grey hue of the rocks that make up its composition. It is a popular choice due to its durability, strength, and aesthetic appeal.


Blue metal aggregate is primarily obtained by crushing basalt or granite rocks, resulting in angular pieces of varying sizes. These crushed rocks are then screened to separate them into different grades, depending on their intended use. The size of the aggregate can range from fine particles to larger stones.


When it comes to construction and landscaping, blue metal aggregate rocks the scene!


Blue metal aggregate is commonly utilised for constructing driveways, pathways, and as a base material for concrete slabs. Its compact nature allows for excellent load-bearing capacity, making it suitable for heavy-duty applications. Additionally, blue metal aggregate provides good traction and stability, ensuring a safe and sturdy surface.


The versatility of blue metal aggregate extends beyond construction projects.


Blue metal aggregate is a fantastic choice for landscaping purposes. It can be used to create decorative garden features like dry riverbeds, as a mulch substitute to prevent weed growth, or as a base for retaining walls and garden borders. The distinct blue-grey colour of the aggregate adds an aesthetic touch, enhancing the visual appeal of any outdoor space.


Contact Narellan Sand, Soil & Garden Supplies


In conclusion, blue metal aggregate is a reliable and aesthetically pleasing construction material with a range of applications. Whether you're embarking on a road construction project, revamping your garden, or undertaking drainage work, blue metal aggregate is an excellent choice.


For high-quality blue metal aggregate and other landscaping supplies, consider Narellan Sand, Soil & Garden Supplies. With their extensive range of products and commitment to customer satisfaction, they are your go-to source for all your landscaping needs.

Additional FAQs

  • Is blue metal the same as aggregate?

    Yes, blue metal is a type of aggregate. The term "blue metal" specifically refers to the bluish-grey colour of the rocks used as the aggregate.

  • Can I use blue metal instead of road base?

    Yes, blue metal can be used as a road base. Its durable and compact nature makes it an ideal material for providing a stable foundation for roads and other paved surfaces.

  • Can I use blue metal for drainage?

    Yes, blue metal is suitable for drainage applications. Its angular shape allows for efficient water flow, making it an effective choice for constructing drainage systems and trenches.

  • Can blue metal be compacted?

    Yes, blue metal can be compacted. Its angular particles can be effectively compacted to achieve a solid and stable surface for various construction and landscaping projects.

  • What rock is blue metal gravel?

    Blue metal gravel is typically derived from basalt or granite rocks. These rocks are crushed and screened to produce the blue metal aggregate used in construction and landscaping.

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