Table 1. Physical properties of the...

Table 1.

Physical properties of the quartz LBS

Description	Particle size			Packing					Particle shape					Mohs hardness	Inter-particle friction
	Size range: mm	C_u	C_c	ρ_s	$ρ_{dr y_{\min}}$	$ρ_{dr y_{\max}}$	e_min	e_max	Roundness	Sphericity	Roughness				ϕ_μ
	Size range: mm	C_u	C_c	ρ_s	$ρ_{dr y_{\min}}$	$ρ_{dr y_{\max}}$	e_min	e_max	Roundness	Sphericity	R_a: μm	R_q: μm	R_z: μm		ϕ_μ
Leighton Buzzard sand
LBS 5/8	2·00–3·35	1·344	0·964	2·682	1·580	1·760	0·524	0·698	0·18–0·73 (mean = 0·48)	0·36–0·86 (mean = 0·63)	0·25–10·56 (mean = 1·70)	0·32–12·89 (mean = 2·37)	1·24–44·68 (mean = 8·29)	6·0–7·0	20°–23° (Cavarretta et al., 2011)
LBS 8/16	1·00–2·00	1·787	1·158	2·670	1·530	1·724	0·548	0·744
LBS 14/25	0·6–1·18	1·462	0·935	2·653	1·504	1·720	0·542	0·764
LBS 2EW	0·25–0·71	1·656	1·090	2·761	1·551	1·773	0·558	0·781
LBS Combined	0·25–3·35	3·11	0·89	2·691	1·664	1·803	0·492	0·617

Description	Particle size			Packing					Particle shape					Mohs hardness	Inter-particle friction
	Size range: mm	C_u	C_c	ρ_s	$ρ_{dr y_{\min}}$	$ρ_{dr y_{\max}}$	e_min	e_max	Roundness	Sphericity	Roughness				ϕ_μ
	Size range: mm	C_u	C_c	ρ_s	$ρ_{dr y_{\min}}$	$ρ_{dr y_{\max}}$	e_min	e_max	Roundness	Sphericity	R_a: μm	R_q: μm	R_z: μm		ϕ_μ
Leighton Buzzard sand
LBS 5/8	2·00–3·35	1·344	0·964	2·682	1·580	1·760	0·524	0·698	0·18–0·73 (mean = 0·48)	0·36–0·86 (mean = 0·63)	0·25–10·56 (mean = 1·70)	0·32–12·89 (mean = 2·37)	1·24–44·68 (mean = 8·29)	6·0–7·0	20°–23° (Cavarretta et al., 2011)
LBS 8/16	1·00–2·00	1·787	1·158	2·670	1·530	1·724	0·548	0·744
LBS 14/25	0·6–1·18	1·462	0·935	2·653	1·504	1·720	0·542	0·764
LBS 2EW	0·25–0·71	1·656	1·090	2·761	1·551	1·773	0·558	0·781
LBS Combined	0·25–3·35	3·11	0·89	2·691	1·664	1·803	0·492	0·617