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Let’s Talk Concrete Mixes – Especially for Foundations

Let’s Talk Concrete Mixes – Especially for Foundations

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If you’ve ever wondered what goes into the perfect foundation concrete mix, you’re in good company because it’s not as simple as just pouring some grey stuff and hoping for the best. Whether you’re laying a shed base, building an extension, or working on a full-scale commercial build, choosing the right concrete mix can make a big difference in durability and performance.

Not All Concrete Is Created Equal

People are often surprised to learn there’s more than one kind of concrete mix. You’ve got mixes for foundations, flooring, driveways, patios, you name it. For foundations, though, strength is key.

A typical foundation concrete mix will have a higher cement content and specific ratios of sand, gravel, and water to ensure it can support the load of the structure on top. We’re talking C25 and C30 grade mixes most of the time, but we can also tailor the mix depending on soil type, design specs, or even local regulations.

Here’s a quick rundown of a few popular mixes:

  • C10/C15 – Low strength, often used for kerb bedding or blinding.
  • C20 – A general mix good for domestic floors and footings.
  • C25 – The sweet spot for most foundation jobs (strong and versatile).
  • C30 and up – Used when strength and durability are top priorities, like for larger buildings or commercial foundations.

Mixing On Site – Why It Matters

Here’s where our volumetric truck comes in and saves the day.

Instead of ordering a generic load of concrete and hoping it’s the right amount (or worse—paying for stuff you don’t use), our volumetric truck mixes the concrete on-site. That means:

  • You get the exact amount you need – no waste, no guesswork.
  • The concrete is freshly mixed, which is always better for strength and finish.
  • We can adjust the mix on the spot if the job changes (like if the trench is deeper than expected).

Plus, you’re only paying for what you actually use. It’s efficient, flexible, and ideal for jobs where every cubic metre (and pound) counts.

Let Us Help Lay the Groundwork

At GB Concrete & Pump, we’ve been around the block enough to know that foundations aren’t the place to cut corners. Whether you’re a builder, contractor, or DIY enthusiast, we’ll help you get the right foundation concrete mix, in the right quantity, with no drama.

So if you’ve got a pour coming up and want to make sure it’s done properly (without wasting time or money), give us a shout. We’ll show up with our volumetric truck, mix exactly what you need, and help you get the job done right.

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