Geotechnical Investigation and Microanalysis of Black Cotton Soil Amended with Guar Gum and Polyethylene Terephlate Fibre

Table 4

Soil mixed with guar gum.

Tests conducted	Upper limit				Lower limit				Mean
	0.5	1	1.5	2.0	0.5	1	1.5	2.0	0.5	1.0	1.5	2.0
Liquid limit (%)	53.82	58.22	61.90	75.56	49.72	53.1	59.5	73.36	51.77	55.66	60.70	74.46
Plastic limit (%)	35.1	38.13	39.11	51.45	33.4	35.75	37.17	47.79	34.25	36.94	38.14	49.62
OMC (%)	19	20	20	22	15	16	18	18	17	18	19	20
MDD (g/cc)	1.91	1.88	1.85	1.83	1.79	1.76	1.73	1.71	1.85	1.82	1.79	1.77
Differential free swell test	42	43	45	47	38	41	43	43	40	42	44	45
CBR (%)	2.87	3.05	3.41	3.71	2.45	2.61	2.93	3.23	2.66	2.83	3.17	3.47

OMC: optimum moisture content; CBR: California bearing ratio; MDD: maximum dry density;