Anon10/17/25, 08:37No.2951268
anons, i have a noise-propagation-in-solids question
i have 2 rooms that are partitioned by a thin sheetrock wall, filled with (supposedly)noise suppressing wool. the problem is that when move about in my room (like moving my chair), the noise gets transfered to the other room easily through the floor, because those two rooms have one single connected slab. the slab composition is as follows
>resin coat
>10cm C20/25 concrete slab
>10cm floor insulation board (styrofoam)
>10cm C8/10 concrete slab
>water barrier etc
all slabs are free floating (i think that's what it's called)my first question is, would it decrease the noise transfer if i were to cut the top slab across, parallel to the sheetrock wall? i can't cut it all the way across, but around 3/4ths of the length (the rest is a hallway). i assume the nouse would not be transferred then, because the slab would be disconnected, but would that improve things significantly or is this a fool's effort? i'm assuming i'd cut it all the way to the insulation board, so the whole 10cm.assuming i were to cut it, what would be the best method? i don't mind the dirt/dust, i know concrete cutters exist and i can rent one, but it seems like an overkill for a 4 meter cut, or am i wrong? would a large angle grinder with a diamond cutter suffice? would it be safer? are there any "slow" cutting tools? i don't mind it taking a few hours.