Mar 16, 2002 #1 kfeng Civil/Environmental Joined Mar 4, 2002 Messages 12 I searched the web for one hour and had no luck. Thanks a lot for your input.
Mar 16, 2002 #2 jheidt2543 Civil/Environmental Joined Sep 23, 2001 Messages 1,469 Location US kfeng: Your best bet, assuming you are in the U.S., is to check your state's standard highway specifications. They have the various classes of acceptable backfill defined by gradation. Hope this helps. Upvote 0 Downvote
kfeng: Your best bet, assuming you are in the U.S., is to check your state's standard highway specifications. They have the various classes of acceptable backfill defined by gradation. Hope this helps.