Jul 18, 2021 Thread starter #3 tmgczb Structural May 12, 2021 174 For what types of subgrade is it required? Upvote 0 Downvote
Jul 18, 2021 #4 dik Structural Apr 13, 2001 25,983 Subgrade capable of taking the compaction, else more effort is required to compact the soil over. Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better? -Dik Upvote 0 Downvote
Subgrade capable of taking the compaction, else more effort is required to compact the soil over. Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better? -Dik
Jul 18, 2021 #5 geotechguy1 Civil/Environmental Oct 23, 2009 671 Yes. With modern compaction equipment you might easily find yourself staring at some 105% SPMDD's. Upvote 0 Downvote
Jul 19, 2021 1 #6 BigH Geotechnical Dec 1, 2002 6,012 Usually very easy to obtain . . . much lower standard than for the modified test D1556 (or 1557) Upvote 0 Downvote
Jul 19, 2021 #7 MTNClimber Geotechnical Jul 24, 2018 660 tmgczb said: For what types of subgrade is it required? Click to expand... You see 100% of D698 or 1557 typically for sensitive pavement structures, like an airport runway, or in areas where a structure will rely on passive earth pressures to resist lateral loads. Upvote 0 Downvote
tmgczb said: For what types of subgrade is it required? Click to expand... You see 100% of D698 or 1557 typically for sensitive pavement structures, like an airport runway, or in areas where a structure will rely on passive earth pressures to resist lateral loads.
Sep 13, 2021 #8 SirAl Geotechnical Feb 28, 2003 150 Not terribly difficult to achieve at moisture contents close to optimum moisture. Upvote 0 Downvote
