3.0 



2.0 



1.0 

 l0.7 



0.5 



0.3 



0.2 



Blue PVC 

 D50 = 2.9mm 



Fine Sand 

 D50 = 0.26 mm 



10 30 50 70 90 98 



Percent Finer 



Figure A-4. Test material sieve analysis data. 



73 



