B💣b ❤️🔥📿🇺🇸🪆🍀🥋_🎰 (nprofile…mawn) yeah pretty much. More trying to figure out what the requirements are in my local area for it. If you want to do it the "right way" you should be compacting for every "lift" of sand laid down and then testing for compaction on each lift. The size of the lift (i.e depth of sand laid down) depends on what kind of compactor you're using - for a walk-behind plate compactor it's about 2 inches, if you're using a vibratory drum compactor (large, driven machine) it's about 6 inches or more depending on the machine.
I've seen some U.S earthworks people claim the weight of the bulldozers or whatever they used to grade with was sufficient to compact and they didn't need any dedicated compactor passes. They also seemed to just test for compaction once at the end, which as far as I'm aware would only test a very shallow depth of compaction. I've also seen excavators here in Aus only test once at the end (although they did use plate compactors). Even if the depth excavated (say with a sand cone test) was sufficient to cover multiple lifts, it would only give you an average density across those lifts, you wouldn't be able to tell if there were any below-specification variations.
I've also seen compaction testing where it's literally a guy going around with a T-shaped stake and leaning into the ground and vibe-checking how much resistance there is. Albeit this was for native soil and not a sand pad, but it still strikes me as a bit primitive. Then you have the slightly-more-technical process of dropping a weight on a stake and measuring how far the stake was driven into the ground (dynamic cone penetrometer). Then there's nuclear gauge testing which I doubt is a thing here in Aus and seems like it's not permitted in some U.S states. That has depth limits too (6-12 inches) but is probably a better bet if your excavator didn't test between lifts and you're forced to compaction test on the last lift.
Anyway this is how you get cracks in your walls - how you get cracks in your beautiful concrete slab floor shed etc.
cassidyclown
npub1zh…vkmgu
2026-08-23 01:53:20 UTC
in reply to nevent1q…hj4m
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2026-08-23 01:53:20 UTCEvent JSON
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