Table 4. Effects of size distribution on profile shape: 

 identification of comparative tests. 



Test pairs 



Remarks 



(9, 10, 12) 



and 



(8, 11) 



Natural sand; D50 = 0.56mm vs. 



13 



and 



14 



nos. 30 to 40 sieve size. 



15 



and 



16 



Natural sand; D50 = 0.26mm vs. 



17 



and 



18 



nos. 50 to 70 sieve size. 



ISA 



and 



16A 



Crushed PVC well distributed vs. 



17A 



and 



18A 



uniform PVC cylinders. 



19A 



and 



20A 





IB 



and 



2B 



Biomodal ground glass having same 



3B 



and 



4B 



average diameter vs. unimodal 



5B 



and 



6B 



ground glass. 



7B 



and 



8B 





9B 



and 



lOB 





IIB 



and 



12B 



Repeat of 5B and 6B with materials 

 reversed. 



13B 



and 



14B 



Trimodal ground glass vs. unimodal. 



15B 



and 



16B 





30 



