Advances in Materials Science and Engineering

Research Article

Effect of Used Motor Oil and Bitumen as Additive on the Permeability and Mechanical Properties of Low Plastic Soil

Table 3

Laboratory investigation of UMO and bitumen-stabilized soil.


	%	MDD	OMC	CBR	“C”	Ф°	LL	PL	PI	“k”
	%	gm/cm³	%	%	kPa	degree	%	%	%	“k”

Used motor oil	0	2.06	12.5	10.8	38	17	47.4	27.6	19.8	5.282 × 10⁻⁶
	4	2.1	12.1	10	33	18	45.9	29.1	16.8	5.202 × 10⁻⁶
	8	2.01	12	6.9	32.1	18.8	43.2	29.3	13.9	5.009 × 10⁻⁶
	12	1.93	10.3	0	30	20	42.7	30.4	12.3	5.017 × 10⁻⁶
	16	1.87	8.8	0	26	21	40.6	31.3	9.3	5.152 × 10⁻⁶
	20	1.84	7.6	0	22	23	38.2	32.1	6.1	5.209 × 10⁻⁶

Bitumen	0	2.06	12.5	10.8	38	17	47.4	27.9	19.7	5.282 × 10⁻⁶
	4	2.13	13.7	12.7	38.7	16	42.3	23.89	18.5	5.162 × 10⁻⁶
	8	2.23	13.4	14.4	39.4	14.7	39.7	21.6	18.1	4.990 × 10⁻⁶
	12	2.29	13.21	15	41	13.8	35.5	18.5	17	4.292 × 10⁻⁶
	16	2.37	12.6	18	45	13	33.6	18	15.6	3.702 × 10⁻⁶
	20	2.42	9.9	21	51	6	31.2	16.6	14.6	3.382 × 10⁻⁶

MDD, maximum dry density, C, cohesion, OMC, optimum moisture content, “ɸ,” angle of internal friction, PL, plastic limit, CBR, California bearing ratio, “k,” coefficient of permeability, LL, liquid limit, and PI, plasticity index.