Influence of Gradation on Resilient Modulus of High Plasticity Soil-Gravel Mixture

Table 5

Number of contact points between coarse aggregates of different sizes.

Grain size	Factor
	Gravel content				Gravel gradation type
	30%	35%	40%	45%	#1	#2	#3	#4
4.75 mm–4.75 mm	48	57	39	123	177	218	225	253
4.75 mm–9.5 mm	98	90	102	155	195	284	296	311
4.75 mm–13.2 mm	41	70	66	169	163	254	266	271
4.75 mm–16 mm	39	35	32	152	142	211	245	242
9.5 mm–9.5 mm	134	188	317	374	299	390	398	410
9.5 mm–13.2 mm	170	146	219	396	286	398	402	414
9.5 mm–16 mm	93	98	112	153	133	232	244	279
13.2 mm–13.2 mm	130	129	127	294	236	325	330	374
13.2 mm–16 mm	53	85	133	154	164	176	194	212
16 mm–16 mm	18	32	47	96	89	136	147	130