S4 



BULLETIN 949, U. S. DEPARTMENT OF AGRICULTURE. 



( N T ame and location ol laboratory. ~i 

 Report on Sample of Gravel or Sand. 



Laboratory No. 



(Date reported.) 



Name 



Identification marks 



Submitted by Title Address. 



Sampled , 192 . . . Received 



Sampled from 



Quantity represented 



Source of material 



Location used or to be used 



Examined for 



., 192... 



195 



TEST RESULTS. 



Sand. 

 Mechanical analysis. 



Grwei.. 

 Mechanical analysis. 



Fraction. 



Per cent. 



Fraction . 



Per cent. 







Retained 3-inch screen 









Passine 3-inch retained 2J inch 









Passing 2£-inch retained 2 inch 

























Passing 1-inch retained J inch 





Passing 50 mesh retained 60 mesh 





























Total 





Passing 200 mesh 







Total 























Tcnrilc strength (cement-sand 



Sample sand. 



Standard Ottawa sand. 



briquettes, 1:3). 



3-day. 



7-day. 



2S-day. 



3-day. 



7-day. 



2S-day. 



1 













o 













3 













I 





i 









5 





| 

























I 













l 





































Remarks: 

 Respectfully submitted 



(Title) . 



