Evaluation of Resilient Modulus of Subgrade and Base Materials in Indiana and Its Implementation in MEPDG

Table 1

Basic statistical parameters for soil samples.

Soil samples	Soil type		LL	PI	Specific gravity	Max. dry density pcf	OMC; %	Actual Dry Density at OMC pcf	Actual moisture content at OMC pcf
29	A-4	Min.	15.5	6.2	2.66	109	13.8	107.9	15.2
		Max.	34.6	10	2.75	129.9	19.3	130.4	19.1
		Mean	26.5	7.2	2.66	115.1	14.2	112.7	14.3
		Standard deviation	5.3	2	0.05	9	3.4	9.9	3.4
69	A-6	Min.	23	5.8	2.54	104.1	10.8	102	10.6
		Max.	40	26	2.76	125.7	19.5	124.7	19.8
		Mean	33.1	15.3	2.67	113.3	15.3	111.6	15.4
		Standard deviation	4.3	3.6	0.04	5.4	2.2	5.2	2.2
28	A-7-6	Min.	41	16.7	2.62	92.2	14.4	89.9	14.4
		Max.	78	55	2.77	114.5	29	113.6	29.1
		Mean	46.9	26	2.7	105.6	19.1	103.9	19.3
		Standard deviation	8.3	8	0.04	5.9	3.4	6.3	3.3