Skip to main content
HAUC
HAUC

Maximum particle size

S5.3.5
The maximum particle size for granular materials used as backfill must comply with the following requirements:
  1. All granular backfill materials must pass through a 75 mm BS sieve.
  2. All granular backfill materials used in the reinstatement of trenches less than 150 mm wide must pass through a 37.5 mm BS sieve.