Table 3. Summary of experiments. 



Test 



Purpose 



Material 



1 to 



7 



Preliminary experiments 



Quartz sand 



8 to 



18 



Size distribution 



Quartz sand 



3A to 



14A 



Shape 



Glass 



ISA to 



20A 



Shape and size distribution 



PVC 



21A to 



22A 



Shape 



Glass 



23A to 



26A 



Material evaluation 



Rocklite and pumice 



IB to 



16B 



Size distribution 



Glass 



17B to 



24B 



Shape 



Glass 



25B to 



26B 



Shape 



PVC 



IC to 



18C 



Verification 



Rocklite and pumice 



29 



