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How do you save and earn money by processing leftover concrete?

Are you active in the concrete or construction sector and do you regularly have leftover concrete such as fresh concrete or concrete granulate? Then you know better than anyone how much money is involved in disposing of that concrete. Fortunately, there is a way to solve this problem: by using our concrete moulds during concrete production, you can process all of your leftover concrete into new products. These new concrete blocks, concrete slabs, barriers or tetrapods can be used in a new project or sold.

Read on and discover how, with the help of our concrete moulds, you can turn your leftover concrete into profitable products.
Betonblock walls buildings (11)_large
Betonblock walls buildings (11)_large

How do you process concrete rubble into new concrete blocks?

Concrete granulate is also ideal for processing into new concrete blocks. Mix this crushed concrete rubble (for example in a mixing bucket) with cement, sand, gravel and water, then pour it into your concrete mould(s) according to our step-by-step plan:

  1. Place the mould on a level surface: for example a casting table.
  2. Apply a release agent: this makes the concrete block easy to remove.
  3. Pour the concrete mixture into the mould: make sure all recesses are properly filled.
  4. Vibrate the concrete: use a poker vibrator for optimal compaction.
  5. Smooth the surface: use a trowel or screed for this.
  6. Allow the concrete to cure: after 24 hours, you can open the mould and remove the concrete block.

Why disposing of leftover concrete is costly

Disposing of leftover concrete comes with substantial costs. Consider, for example:

  1. Transport to the landfill: this not only requires fuel, but also time and labour costs.
  2. Disposal fees: the costs of waste removal can add up quickly.
  3. Environmental obligations: increasingly strict government regulations make the process even more expensive.

By processing your leftover concrete during the production of new concrete blocks, you significantly reduce these costs. In addition, you need fewer new raw materials, which leads to even greater savings.

Recycled concrete blocks: new or not?

The concrete blocks you produce from leftover concrete using our moulds are fully fledged products that you can sell as new without any issues. From a qualitative and aesthetic perspective, there is absolutely no difference between concrete blocks made from new raw materials and those made from leftover concrete. In addition, these blocks offer a major purchasing advantage for your customer: the concrete blocks are recycled products.

What is the return on concrete blocks made from leftover concrete?

When you process leftover concrete into a new block or product, you may wonder what the realistic return is. Of course, this varies per situation, but let’s take a simple calculation example:

  1. Purchase of concrete mould 160x80x80: €1,675
  2. Pouring leftover concrete into the mould: leftover concrete has already been paid for, so €0
  3. Average selling price of a new concrete block: €145
  4. Number of blocks that can be produced with one mould: 2,500 (minimum)
  5. Costs: €1,675
  6. Revenue: €362,500
  7. Mould cost per block: €0.67

How do you process leftover concrete into a new product?

Using leftover fresh concrete is fairly self-explanatory. By adding extra cement, sand and water, you can even create more concrete mix.

Reusing leftover concrete as a step towards sustainability

By processing leftover concrete into new concrete products, you contribute to a more sustainable concrete sector. This approach helps reduce your company’s ecological footprint. This is important, as the pressure on the construction sector to operate as environmentally friendly as possible continues to grow. For example, the Dutch government supports the Concrete Agreement, which sets the target that from 2030 onwards all materials used to produce concrete will be processed circularly. You can read more about this in our blog about the Concrete Agreement.

Reuse your old concrete blocks as well

Thanks to the smart system of our concrete block moulds, the blocks can be easily stacked and later dismantled again. This makes them suitable for both permanent and temporary structures. Are you building a temporary structure? Then reuse the concrete blocks or sell them on for additional profit.

What are the advantages of our concrete moulds?


  1. Sustainable and robust: the moulds are made of high-quality structural steel and are suitable for long-term use.
  2. Flexible: with partition walls, you can produce concrete blocks in various sizes.
  3. Efficient: the concrete moulds are easy to use, ideal for both large-scale and small-scale production.
  4. Modular: the blocks you produce with our moulds are easy to stack, offering flexibility for both temporary and permanent structures.
  5. Cost-saving: with the concrete moulds, you can effortlessly process your leftover concrete, saving on transport, disposal and landfill costs.

Discover the benefits of Betonblock®

Do you want to save money and generate revenue by processing leftover concrete? Then choose our high-quality concrete block moulds. Contact us today for a quotation and discover how easily you can turn your leftover concrete into profitable concrete products.

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