Materials 200 mL Fine Gravel
200 mL Sand
200 mL Soil
*Tap Water
Note: You must provide the materials listed in *red.
Labware
(1) 250 mL Beaker
250 mL Graduated Cylinder
Protractor
ANGLE OF REPOSE
When determining slope stability, geologists and civil engineers examine shear stress and shear strength. The shear stress of a material will differ on varying slopes. In addition, shear strength varies according to material cohesion and particle size. Water also plays a role in slope stability. In this exercise, you will explore slope stability by constructing slopes of gravel, sand, and soil, and measuring their angles of repose. You will also explore the effect of water on slope stability. It is advisable to perform this exercise on an easy-to-clean surface or flat area outside.