Transactions Society Naval Architects ami Marine Ihu/inccrs, Vol. -'/. 1919. 



Plate 3. 



To illustrate paper on "Methods Eiiiployed in flic Constntctioii of Concrete Ships," 



by R J. Wiy. Esq Visitor. 

 TABLE 4 



EFFECT Of FISEMESS OF CEMEMT ON 



THE STRENGTH OF CONCRETE 



Each Figure is the average compressive Strength of twenty 



4x8 Cylinders. 



Atlas Aggregate Used: 1 yolume Pine to 



2 volvunes Coarse; Graded' up to 1/2": 



Mix by voluioe; Same Brand of Cement used* 



Relative consistencies from 1.00 to 1.50, the Gradation being 

 the same in each case* 



MIX 



FINENESS 

 ifo CEMENT 

 Passing a 

 200 sieve) 



COMPIffiSSIVE STRENGTH 



7 Days 



28 days 



1-4 



91.2 

 WIT 



1384 



2200 



1816 



1-3 



91.2 

 83^ 



2040 



1800 



3030 



1-2* 



91.2* 



3118* 

 2642 



4248* 



3770 



Tests by Prof. Duff Abrams, Lewis Institute, Chicago, 111. *Mix usea for 



ConDret.e Shxps 



NORRIS PETERS. INC.. LITHO.. WASHINGTON. D. C. 



