Geotechnical Suitability of Soils in Road Construction for Sustainable Development in Tropical Africa: Case of Lateritic Graveled Soils of Bandjoun (West, Cameroon)

Table 1

Summary of the different physical characterization results.

Parameter	γs	VBS	LL (%)	(%)	PI (%)	CI	GI	Particle size analysis (%)
								Pebbles	Gravel	Coarse sand	Fine sand	Fines
Samples
CP1	2.18	4.25	53.00	43.66	9.34	3.91	0.00	15.50	58.30	6.00	1.00	18.60
CP2	2.25	4.00	50.00	40.70	9.30	3.44	0.00	12.50	72.70	5.70	0.60	7.70
CP3	2.34	4.25	51.00	40.70	10.30	3.23	0.00	5.70	89.20	0.40	0.40	0.60
CP4	1.90	4.50	47.00	34.50	11.50	1.98	0.12	14.50	55.00	6.10	1.00	23.10
Max	2.25	4.50	53.00	43.66	11.50	3.91	0.12	15.50	89.20	6.10	1.00	23.10
Min	1.90	4.00	51.00	34.50	9.30	1.98	0.00	5.70	55.00	0.40	0.40	0.600
Average	2.17	4.25	50.25	39.90	10.11	3.14	0.03	12.05	68.80	4.55	0.75	12.50
Deviation	0.19	0.20	2.50	3.85	1.04	0.82	0.06	4.41	15.62	2.77	0.30	10.23

γs = specific gravity, LL = liquidity limit,  = plasticity limit, PI = plasticity index, VBS = methylene blue value, CI = consistency index.