MASONRY SILOS 



35 



and in addition a scaffold for temporarily holding the steel 

 in position is required. 



Clay-Product Silos. The economical masonry building 

 materials of the present time may be divided into two general 

 classes, concrete or stone, and clay products. 



Either of these classes furnish excellent building materials 

 for silos. Therefore it is only natural that in many places 

 brick was used in the early development of the silo. As in 



Fig. 11. The cement block silo. 



