w^wtoH- I No. of Sam i:l e Barrel 



wcc&ototototctototc 



~T^, Price per IJurrel 



Relative Cheapness 



No. 50 

 sieve 



<1 tO - O O M Cl -1 W CJ 



No. 100 



sieve 



Hours 



Initial 



Hours 



Final 



,.u..ui-i.*kccrciow 

 t- *. 01 j. en ~i ex, iv 7 dav<? 

 > oc o o < ; ic ii *. ' Ud -y=> 



O' >tk Cn to OT *. ic i. ^ 

 i-i ~) CC tC rf> Ci -1 1C ^i 



30 days 



iSSi:St:^ 60 days 



7 days 



30 days 



60 days 



60 days 



Kel.-itlve Strength of 

 1:3 Mortar 



60 days 



KV1. Economy 1:3 Mortar. 



St n-ii.i:1 h X ( - lic;i jtm-ss 



