The CBR Surcharge Weight has 2-1/8in (54mm) center hole and is 5-7/8in (149mm) diameter plated steel. Used in the application of surcharged loads on the soil's surface during soaking and penetration. Rust-resistant, plated annular disc weighs 5 lbs.
Meets Test Methods:
AASHTO T193
ASTM D 1883