Concrete Strengths Explained

No matter the construction project, the concrete mix being used needs to be strong enough to handle the loads it is anticipated to withstand. Concrete strength is calculated by the weight it can tolerate 28 days after it has been laid and cured.

Here are the many concrete strengths we provide:

Our concrete strengths range from grade C20 with a strength of 20 newtons, to C50 with a strength of 50 newtons. C20 concrete mix is designed for domestic floors and foundations. C50, our strongest concrete, is designed to withstand heavy-duty loads.

Purpose: 

  1. Foundations (single storey)
  2. Internal floor slabs
  3. Domestic garage floors
  4. Bases for sheds, driveways and workshops
  5. Patio under paving
    Strength: 20N

Purpose: 

  1. Bases for extensions, houses or patios
  2. Kerbs
  3. Drainage and filling around manholes or trenches
  4. Mass concrete & trench fill
  5. House floor blinding and pad foundations
    Strength: 25N

Purpose: 

  1. Driveways
  2. Paths
  3. Patios
  4. Garage and shed bases
  5. Pavements
  6. Foundations for extensions, houses and large walls
  7. Garage, shed, or conservatory
    Strength: 30N

Purpose: 

  1. Structural applications
  2. Industrial applications
  3. HGV parks
  4. Farms or stores used for agricultural equipment
  5. Foundations for traffic sign posts, planted lighting columns and posts for environmental barriers
  6. Floor slabs used for garages or houses
    Strength: 40N

Purpose: 

  1. High-rise buildings
  2. Crane beams
  3. Special commercial structures
  4. Motorways
    Strength: 50N

Purpose: 

  1. Internal Floors

There are different types of concrete, each with its own strengths and weaknesses. Depending on the project you’re working on, you’ll want to use a different type of concrete mix. Here’s a quick guide to the different types of concrete and when to use them:

  • Regular mix concrete has a compressive strength of 2,500 psi (pounds per square inch). It’s often used for sidewalks, driveways, and other flat surfaces.
  • Structural concrete mix has a compressive strength of 4,000 psi. It’s used for foundation walls, beams, and columns.
  • High-strength mix concrete has a compressive strength of 8,000 to 10,000 psi. It’s used for bridges, dams, and other structures that need to be extra strong.
    As you can see, there are many different types of concrete, each with its own strengths and weaknesses. Depending on your project, you’ll want to use a different type of concrete mix.
    If you’re not sure which type of concrete mix to use, consult with one of our team members, who will be happy to assist you.
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