an engineering geological characterisation of tropical clays - GBV

Chapter 10
181
Correlation of index properties
10.1 Linear shrinkage and plasticity index
Laboratory measured values of linear shrinkage, LS, and plasticity index, PI meas.,
Table 10.1. Calculated and laboratory measured values of plasticity index of black clays.
Profile
Depth
(m)
Sample No.
LS
(%)
PI meas.
(%) PI BS (%) PILS (%)
Depth
(m) Sample No. LS (%)
PI meas.
(%) PI BS (%)
SA1-30cm 25 41 52 46 SA1-50cm 23 39 49 44
A < 0,50 SA2-30cm 27 54 57 50 ≥ 0,50 SA2-70/105cm 26 55 55 49
SA28-30cm 25 45 54 48 SA28-50cm 25 47 54 48
SA37-30cm 24 43 51 45 SA37-50/80cm 26 39 55 49
SA41-30cm 26 47 55 48 SA41-50cm 24 49 52 46
SB1-30cm 23 47 49 44 SB1-50/70cm 25 50 53 47
B < 0,50 SB5-30cm 23 47 49 44 ≥ 0,50 SB5-50/70cm 25 50 53 47
SB7-30cm 24 48 51 45 SB7-50/70cm 25 49 53 47
SB18-30cm 23 43 49 43 SB18-50cm 21 39 44 39
SB27-30cm 24 47 50 44 SB27-50cm 25 49 52 46
SB31-30cm 24 49 51 45 SB31-50cm 25 48 53 47
SB41-30cm 26 44 55 49 SB41-50cm 25 47 54 48
SB42-30cm 25 44 54 48 SB42-50cm 26 47 55 48
SC1-30cm 23 48 49 43 SC1-50cm 24 48 51 45
C < 0,50 SC5-30cm 23 48 49 44 ≥ 0,50 SC5-50cm 24 47 50 44
SC9-30cm 24 48 50 44 SC9-50cm 24 48 51 45
SC17-30cm 25 41 53 47 SC17-50cm 24 48 51 45
SC25-30cm 25 49 52 46 SC25-50cm 25 48 54 48
SC29-30cm 25 49 53 47 SC29-50cm 26 43 56 50
SC33-30cm 25 49 53 47 SC33-50cm 26 50 55 48
SC41-30cm 29 47 61 54 SC41-50cm 29 47 61 54
SD1-30cm 26 46 56 49 SD1-50/80cm 27 48 57 50
D < 0,50 SD5-30cm 26 47 55 48 ≥ 0,50 SD5-50/70cm 27 49 57 50
SD7-30cm 27 48 57 50 SD7-50/70cm 26 51 56 50
SD17-30cm 24 44 50 44 SD17-50cm 25 49 52 46
SD25-30cm 25 39 53 47 SD25-50cm 25 45 52 46
SD29-30cm 27 47 57 50 SD29-50cm 26 51 55 48
SD33-30cm 27 47 58 51 SD33-50cm 25 50 53 47
SD41-30cm 26 46 55 48 SD41-50cm 26 49 56 49
SE1-30cm 23 48 49 44 SE1-50/70cm 25 50 53 47
E < 0,50 SE5-30cm 24 48 50 44 ≥ 0,50 SE5-50/70cm 26 49 55 49
SE13-30cm 24 47 51 45 SE13-50cm 25 49 53 47
SE21-30cm 25 49 53 47 SE21-50cm 26 49 55 48
SE29-30cm 25 46 52 46 SE29-50cm 26 47 56 50
SE37-30cm 24 48 50 44 SE37-50cm 25 48 54 48
SE41-30cm 25 47 53 47 SE41-50cm 26 48 55 48
max 29 54 61 54 max 29 55 61 54
Statistical < 0,50 min 23 39 49 43 ≥ 0,50 min 21 39 44 39
analysis range 6 15 12 11 range 8 16 17 15
median 25 47 53 47 median 25 48 54 48
mode 25 47 53 47 mode 25 49 53 47
mean 25 47 53 47 mean 25 48 54 47
std 1,38 2,78 2,93 2,59 std 1,29 3,28 2,76 2,43
var 1,89 7,74 8,58 6,69 var 1,67 10,76 7,60 5,92
cov 0,57 0,51 cov 3,23 2,85
correlation 0,70 0,70 correlation 0,37 0,37
PILS
(%)