The Compressibility and Swell of Mixtures for Sand-Clay Liners

Table 1

Physical properties of Al-Qatif clay.

Property	Range
Material passing sieve number 200	>90%
Liquid limit	130–150
Plastic limit	60–70
Plasticity index	70–80
Maximum dry density	1.150–1.200 gm/cm^3
Optimum moisture Content	32–40%
Swell percent (ASTM D4546)	16–18%
Swelling pressure (ASTM D4546)	500–800 kN/m^3 ( = 12 kN/m^3)