Skip to main content

Table 4 Results of the geotechnical test

From: An investigation into the cause of road failure along Sagamu-Papalanto highway southwestern Nigeria

SN Soil
layers
Clays % Silt % Fines % Sand % Gravel % SG NMC LL PL PI FS LS Activity AASHTO Soil group UCS OMC
%
MDD
(g/cm3)
CBR %
L1 SBC 26.1 37.2 62.8 36.0 3.2 2.64 6.8 56.1 35.6 20.5 33 6 0.78 A-7 SS MH 24 1.52 5
L2 SBC 18.5 12.78 30.2 63.4 7.7 2.52 12.6 30.4 22.4 8.0 22 8.16 0.43 A-24 CS CL 15 1.65 4
L3 SBC 39 9.6 47.2 49.4 4.3 2.53 20.6 49.7 26.2 23.5 21.2 11 0.60 A-7 CS MI 21 1.67 8
L4 SBC 31.3 7.4 39.5 48.3 13.2 2.53 14 46.4 32.4 14.0 21.4 12.4 0.44 A-7 CS MI 18 1.51 6
L5 SBC 36.7 11.9 45.4 56.8 3.8 2.52 16.4 46.9 29.9 17.0 32 11 0.46 A-7 CS MI 21 1.61 6
L6 SBC 27 11.9 37.4 57.3 9.3 2.53 19.7 47.9 27.5 20.4 26.9 12.4 0.75 A-7 CS CI 17 1.53 6
L7 BC 26.5 16.4 41.9 49.3 10.8 2.54 14.9 52.2 29.2 23.0 43.9 10.2 0.86 A-7 CS MI 12 1.65 5
L8 BC 26.8 15 39.8 61.3 2.7 2.56 7.5 25.1 19.9 5.20 2.0 6 0.19 A-4 CS CL-MI 11 1.78 5
L9 BC 26.2 11.7 36.1 37 25.9 2.57 15 41.7 29.7 12 18.6 6 0.45 A-7 GS MI 16 1.67 4
L10 BC 48.9 12.1 58.0 31.7 9.3 2.62 15.4 42.4 30.5 11.9 22 8.29 0.24 A-6 SC MI 18 1.65 3
L11 SG 24.2 11.2 34.4 56.2 8.4 2.56 15.8 34.3 21.7 34.3 31 9.57 0.29 A-26 CS CL 3 1.70 3
L12 SG 21.1 12.7 31.8 60.5 6.7 2.55 12.6 36.3 25.2 36.3 8.14 10.29 0.52 A-26 CS CI 4 1.72 4
L13 SG 26.9 6.1 32 59.4 10.6 2.58 12.2 33.6 22.6 33.6 26 11.29 0.40 A-26 CS CL 12 1.71 12
L14 SG 27 14.9 42.9 51.4 4.7 2.56 18.2 40.5 22.1 40.5 26.7 11.6 0.68 A-7 CS CI 5 1.69 5
L15 SG 13.4 15.8 27.2 64 9.8 2.57 11.5 26.8 18.2 26.8 11 8.86 0.64 A-24 CS CL 4 1.74 4
L16 SG 12.1 14.9 28 70.1 4.9 2.55 13.2 36.6 18.7 36.6 5.35 3.86 1.47 A-2 SiC CL 4 1.70 4
L17 SG 22.6 8.7 28.3 50.5 20.2 2.54 22 31.3 20.5 31.3 5.17 3.96 0.47 A-24 CS CL 5 1.72 5
L18 SG 8.5 7.5 12 80.1 6.9 2.57 12.5 40.81 22.3 40.81 6.17 7.43 2.17 A-2 CS CL 9 1.72 9
L19 SG 21.8 14.8 35.6 55.7 11.7 2.50 11.6 45.4 23.8 45.4 31 11.71 0.99 A-2-7 CS CI 3 1.64 3
L20 SG 27.5 14 38.5 49.4 10.1 2.58 9.4 46.2 21.6 46.2 26 12.71 0.89 A-7 CS CI 4 1.64 4
  1. Note: MC Moisture content, SG specific gravity, MDD maximum dry density, PI plasticity index, LL liquid limit, PL plastic limit, CBR California bearing ratio LS linear shrinkage, FS free swell, SS sandy silt, CS clayey sand, GS gravelly sand, SC sandy clay, SiC silty clay, NP non plastic; SBC sub-base soil; Base course (BC) materials; sub-grade soil (SGS)