klotione
2019-03-07 10:24:04
- #1
According to Rsto, this is a BK 7 and here 38cm of frost protection (crushed stone base layer) in a compacted state is required. Natural stones can be laid in a 0-5mm split sand mixture or in a normal sand bed, unlike concrete pavers, which are laid in a 3-5cm high split bed with a 2-5mm mixture. If the pavement has up to 2cm difference over a length of 4m, it is correct. If the value is greater, it is incorrect. See DIN EN 18317:2006-10 section 3.3.1.5 Flatness. Also DIN EN 18202. With your specifications, you will not achieve an even surface. Best regards