Correlation between SPT, CBR and DCP
Correlation between SPT, CBR and DCP
(OP)
I need to know if there is a correlatión between SPT(Standard Penetration test), CBR(California Bearing Ratio) and DCP(Dynamic Cone Penetrometer). If tyou know something about this subject please let me know.
Thanks,
Daniel Denis
Thanks,
Daniel Denis





RE: Correlation between SPT, CBR and DCP
Thread256-18139 will help,
Fred
RE: Correlation between SPT, CBR and DCP
it seams like each firm has their own DCP with their own correlation to SPT. My own expiernec trying to relate SPT to CBR is worthless their is too much variation.
I did find an Army Corp manual " Planning and Desing of Road Airfields and Hellaports" they have a DCP with correlations to CBR, but you need that specific DCP
my solution was to run inplace CBR tests ASTM4429
RE: Correlation between SPT, CBR and DCP
which correlates DCP (8 kg) w/ CBR.
Contact ASTM Subcommittee D 04.39 for more information.
RE: Correlation between SPT, CBR and DCP
Not much help was I?
RE: Correlation between SPT, CBR and DCP
DCP value in mm/blow SPT value blow/300mm
5 50
6 44
7 38
8 33
9 28
10 24
12 22
14 18
16 16
18 15
20 14