Source google image: https://www.researchgate.net/profile/Abdelmalek_Bouazza/publication/228559365/figure/tbl1/AS:669561166778373@1536647230115/Asphalt-Concrete-Hydraulic-Barriers-for-Waste-Isolation.png
Isolation 6 cm
Source google image: https://www.researchgate.net/profile/Abdelmalek_Bouazza/publication/228559365/figure/tbl1/AS:669561166778373@1536647230115/Asphalt-Concrete-Hydraulic-Barriers-for-Waste-Isolation.png