Table 1.

Summary of soil classifications

Loughbrickland (average values)Loughbrickland (Clarke 2007)Dromore (Hughes et al. 2007)Dublin Boulder Clay (Long & Menkiti 2007)
Plastic limit (%)14.6(14–21) 17.8(14–23) 18.214.9–15.9
Liquid limit (%)37.7(30–44) 37.4(30–41) 38.121–30
Plasticity index (%)23.1(10–25) 19.6(18–25) 2011.8–15.1
Moisture content (%)Gravel removed 16With gravel 10–17 Gravel removed 15–24With Gravel 9.5–15 Gravel removed 15.3–21.610–13.1
Clay content (%)20(16–26.6) 2213–1510–17.8
Silt content (%)26(12.3–44.7) 2615–3817–30.5
Sand content (%)28(10.8–47.4) 27.116–3125–34
Gravel content (%)24(9.2–47.4) 23.521–6128–46.3
  • After Kelly (2018).