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What aggregate is used for the sub base in a Hydropave Permeable Paving system?

A 4/20mm coarse graded aggregate to BS EN13242:2002 / BS 7533 Part 13 should be used. For more guidance on permeable sub bases, read our ‘choosing the correct aggregate for permeable paving’ blog.

If you need a fully indemnified permeable paving design for your project, use our permeable paving design service.

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